CN110630109A - Intelligent lock motor control circuit and control method - Google Patents
Intelligent lock motor control circuit and control method Download PDFInfo
- Publication number
- CN110630109A CN110630109A CN201911044763.5A CN201911044763A CN110630109A CN 110630109 A CN110630109 A CN 110630109A CN 201911044763 A CN201911044763 A CN 201911044763A CN 110630109 A CN110630109 A CN 110630109A
- Authority
- CN
- China
- Prior art keywords
- signal
- circuit
- driving circuit
- transistor
- intelligent lock
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000003990 capacitor Substances 0.000 claims description 22
- 230000002457 bidirectional effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000005252 bulbus oculi Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
- E05B47/0012—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with rotary electromotors
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B49/00—Electric permutation locks; Circuits therefor ; Mechanical aspects of electronic locks; Mechanical keys therefor
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B2047/0048—Circuits, feeding, monitoring
- E05B2047/005—Opening, closing of the circuit
Landscapes
- Control Of Direct Current Motors (AREA)
- Lock And Its Accessories (AREA)
Abstract
The invention discloses a control circuit and a method of an intelligent lock motor, wherein the control circuit comprises a micro control unit which is responsible for receiving an opening/closing signal and generating modulation signals with different duty ratios according to the opening/closing signal; the pulse width modulation circuit is connected with a signal output port of the micro control unit, and controls the on/off state of the pulse width modulation circuit according to the duty ratio of a modulation signal transmitted by the micro control unit to provide different level signals for the drive circuit; the input end of the driving circuit is connected with the pulse width modulation circuit, the output end of the driving circuit is connected with a motor, and the motor is controlled to rotate forward and backward according to different level signals provided by the pulse width modulation circuit, so that the intelligent lock can open or lock a door. According to the invention, the on-off state of the pulse width modulation circuit can be controlled only when the micro control unit outputs the PWM modulation signal, so that the forward and reverse rotation of the motor is controlled, and the use safety of the intelligent lock is improved.
Description
Technical Field
The invention relates to the field of intelligent lock driving, in particular to a motor control circuit and a motor control method for an intelligent lock.
Background
At present, with the rapid development of the smart home industry, the smart door lock gradually goes deep into the daily life of people. The intelligent lock is used as a safety guard of a family, and the safety and the reliability of the intelligent lock are very important. In order to achieve the purpose of only user control, most of intelligent locks in the market at present adopt a controller to control the running state of a motor, and identification devices such as fingerprints or passwords are added on the intelligent locks, and after the identification devices are successfully verified, the controller can obtain a door opening and closing signal so as to control the motor to drive the door to open or lock.
However, the lock body motor control technology adopted in the existing intelligent lock is a circuit in which the MCU controller is directly connected with the motor driving chip, and the MCU controller is easy to make error contact under bad external interference to output high and low levels, so that the motor connected with the MCU controller makes operation response to the high and low levels generated by misoperation, and the error triggering motor is out of control, thereby affecting the safety of the intelligent lock.
Disclosure of Invention
In order to overcome the defects of the prior art, one of the objectives of the present invention is to provide a motor control circuit of an intelligent lock, which can improve the safety of the intelligent lock.
The invention also aims to provide a motor control method of the intelligent lock.
One of the purposes of the invention is realized by adopting the following technical scheme:
an intelligent lock motor control circuit comprising:
the micro control unit is responsible for receiving the opening/closing signals and generating modulation signals with different duty ratios according to the opening/closing signals;
the pulse width modulation circuit is connected with a signal output port of the micro control unit, and controls the on/off state of the pulse width modulation circuit according to the duty ratio of a modulation signal transmitted by the micro control unit to provide different level signals for the drive circuit;
the input end of the driving circuit is connected with the pulse width modulation circuit, the output end of the driving circuit is connected with a motor, and the motor is controlled to rotate forward and backward according to different level signals provided by the pulse width modulation circuit, so that the intelligent lock can open or lock a door.
Furthermore, the pulse width modulation circuit comprises four paths of PWM signal input units, wherein the PWM1 and PWM2 signal input units are connected with a first input port of the driving circuit, the PWM3 and PWM4 signal input units are connected with a second input port of the driving circuit, the PWM1 signal input unit and the PWM3 signal input unit have the same structure, and the PWM2 signal input unit and the PWM4 signal input unit have the same structure.
Further, the PWM1 signal input unit includes a capacitor C1, a resistor R1, a resistor R2, and a PNP-type transistor Q1, the modulation signal is input to the capacitor C1 through a signal output port of the micro control unit, the capacitor C1 is connected in series with the resistor R2 and is connected to the base of the transistor Q1, one pin of the resistor R1 is connected to the power supply, the other pin is connected to the base of the transistor Q1, the emitter of the transistor Q1 is connected to the power supply, and the collector of the transistor Q1 is connected to the first input port of the driving circuit.
Further, the PWM2 signal input unit includes a capacitor C2, a resistor R3, a resistor R4, and an NPN-type transistor Q2, the modulation signal is input to the capacitor C2 through a signal output port of the micro control unit, the capacitor C2 is connected in series with the resistor R3 and is connected to the base of the transistor Q2, one pin of the resistor R4 is connected to the base of the transistor Q2, the other pin is grounded, the collector of the transistor Q2 is connected to the collector of the transistor Q1 of the PWM1 signal input unit, and the emitter of the transistor Q2 is grounded.
Further, two input ports of the driving circuit are connected with a bidirectional voltage stabilizing diode.
Further, the door opening/closing signal is generated by one or more of a biometric identification module, a password identification module, a card swiping identification module or a terminal identification module connected with the micro control unit.
The second purpose of the invention is realized by adopting the following technical scheme:
the intelligent lock motor control method is applied to the intelligent lock motor control circuit and comprises the following steps:
step S1: receiving an open/close door signal;
step S2: generating two corresponding PWM signals according to the opening/closing signals, and acquiring duty ratios of the two PWM signals;
step S3: respectively controlling the two pulse width modulation circuits corresponding to the two PWM signals to be conducted according to different duty ratios, thereby controlling the level states of two input ends of the driving circuit;
step S4: the driving circuit controls the positive rotation or the negative rotation of the motor according to the level state of the input end of the driving circuit, so that the door opening or locking action of the intelligent lock is realized.
Further, if the door opening signal is received in the step S2, the two generated PWM signals are a low duty ratio PWM1 signal and a high duty ratio PWM4 signal; if a door closing signal is received, a high duty cycle PWM2 signal and a low duty cycle PWM3 signal are generated.
Further, the pulse width modulation circuit conduction control method in step S3 includes: if the received signal is a door opening signal, the PWM1 signal with low duty ratio enables a triode Q1 in the PWM1 signal input unit to be conducted, and high level is provided for a first input end of the driving circuit; the PWM4 signal with high duty ratio enables a transistor Q4 in the PWM4 signal input unit to be conducted, and low level is provided for the second input end of the driving circuit; if a door closing signal is received, the PWM2 signal with high duty ratio enables a triode Q2 in the PWM2 signal input unit to be conducted, and low level is provided for a first input end of the driving circuit; the low duty cycle PWM3 signal turns on transistor Q3 of the PWM3 signal input unit to provide a high level to the second input of the driver circuit.
Further, the method for controlling the forward and reverse rotation of the motor according to the level state in step S4 includes: if the first input end of the driving circuit is at a high level and the second input end of the driving circuit is at a low level, the driving motor rotates forwards to realize the door opening action; if the first input end of the driving circuit is at a low level and the second input end is at a high level, the driving motor is driven to rotate reversely, and the door locking action is realized.
Compared with the prior art, the invention has the beneficial effects that:
the on-off state of the pulse width modulation circuit can be controlled only when the micro control unit outputs the PWM signal, so that the driving circuit is controlled to drive the motor to rotate forward and backward, the problem that the motor is out of control due to the fact that the micro control unit triggers and outputs high and low levels by mistake is avoided, and the use safety of the intelligent lock is improved.
Drawings
FIG. 1 is a schematic diagram of signal transmission of a motor control circuit of the intelligent lock of the present invention;
fig. 2 is a circuit connection diagram of the motor control circuit of the intelligent lock of the invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
The utility model provides an intelligence lock motor control circuit for on the motor in the control intelligence lock for the intelligent control of motor is more stable, thereby improves the security of intelligence lock.
As shown in fig. 1 and 2, the control circuit includes a micro control unit, i.e., an MCU controller, and the intelligent lock realizes the function of controlling the lock switch in real time through the MCU controller.
The MCU controller is connected with an identity recognition module in the intelligent lock, wherein the identity recognition module can be a fingerprint, voice or eyeball biological recognition module, a card swiping module, a password module or a mobile phone terminal module, and the like, and when the identity recognition module successfully verifies the user identity information, a door opening or closing signal can be sent to the MCU controller. After the MCU controller receives the door opening or closing signals, modulation signals with different duty ratios, namely PWM signals, can be generated according to different signals.
The signal output port of the MCU controller is connected with the pulse width modulation circuit, wherein the pulse width modulation circuit is a PWM control circuit; when the MCU controller outputs a PWM signal, the pulse width modulation circuit can be controlled to be in a conducting state or a cut-off state; in this embodiment, the pulse width modulation circuit includes four paths of PWM signal input units, where the PWM1 and PWM2 signal input units are connected to a first input port INA of the driving circuit, the PWM3 and PWM4 signal input units are connected to a second input port INB of the driving circuit, different PWM signal input units are turned on to provide different level signals for two different input ports of the driving circuit, an output end of the driving circuit is connected to a motor, and the driving circuit realizes a forward rotation or reverse rotation effect according to different level states to complete a door opening or locking action of the intelligent lock.
In the present embodiment, the PWM1 signal input unit has the same structure as the PWM3 signal input unit, and the PWM2 signal input unit has the same structure as the PWM4 signal input unit.
The PWM1 signal input unit comprises a capacitor C1, a resistor R1, a resistor R2 and a PNP type triode Q1, the modulation signal is input into the capacitor C1 through a signal output port of the micro control unit, the capacitor C1 plays a role of alternating current and direct current conduction, and the capacitor C1 can be passed only when the MCU controller outputs the PWM signal; the capacitor C1 is connected in series with a resistor R2 and is connected to the base of the triode Q1, one pin of the resistor R1 is connected with a 3.3V power supply, the other pin of the resistor R1 is connected with the base of the triode Q1, the emitter of the triode Q1 is connected with the power supply, and the collector of the triode Q1 is connected with the first input port of the driving circuit; when the signal input by the PWM1 signal input unit is a PWM signal with a low duty ratio, the transistor Q1 is turned on, and a high level is provided to the first input port INA of the driving circuit; if the input signal is a PWM signal with a high duty ratio, the transistor Q1 is not turned on and is in an off state.
The PWM4 signal input unit comprises a capacitor C7, a resistor R9, a resistor R10 and an NPN type triode Q4, the modulation signal is input into the capacitor C7 through a signal output port of the micro control unit, and the capacitor C7 has the same function as the capacitor C1 and also plays a role of alternating current and direct current; the capacitor C7 is connected in series with the resistor R9 and is connected to the base of the transistor Q4, one pin of the resistor R10 is connected to the base of the transistor Q4, the other pin is grounded, the emitter of the transistor Q2 is grounded, and the collector of the transistor Q4 is connected to the second input port INB of the driving circuit; when the signal input by the PWM4 signal input unit is a PWM signal with a high duty ratio, the transistor Q4 is turned on, and a low level signal is provided to the second input port INB of the driving circuit; if the input signal is a low duty cycle PWM signal, transistor Q4 is not conducting.
Therefore, after the MCU controller receives the door opening signal, two PWM signals are generated, that is, a PWM1 signal with a low duty ratio is input to the PWM1 signal input unit, and a PWM4 signal with a high duty ratio is input to the PWM4 signal input unit, so that the first input port INA and the second input port INB of the driving circuit respectively obtain a high level signal and a low level signal, thereby driving the motor to rotate forward to realize the door opening action.
Similarly, the PWM2 signal input unit has the same structure as the PWM4 signal input unit, except that the collector of the transistor Q2 in the PWM2 signal input unit is connected to the first input port INA of the driving circuit; the PWM3 signal input unit and the PWM1 signal input unit have the same structure, and the collector of the transistor Q3 in the PWM3 signal input unit is connected to the second input port INB of the driving circuit.
When the MCU controller receives a door closing signal, two paths of PWM signals PWM2 and PWM3 are generated; PWM2 is a high duty cycle PWM signal to turn on transistor Q2, and PWM3 is a low duty cycle PWM signal to turn on transistor Q3; at the moment, the input ends INA and INB of the driving circuit respectively obtain low level signals and high level signals to drive the lock body motor to rotate reversely, so that the door is locked.
In addition, in order to stabilize the circuit voltage, a bidirectional zener diode is connected to each of two input ports of the driving circuit, a voltage output terminal of the driving circuit, and the like.
The PWM control circuit in this embodiment plays a role of alternating current and direct current, and can control the on/off state of the transistor only when the MCU controller outputs the PWM signal, thereby controlling the driving circuit to drive the motor to rotate forward and backward. If the MCU controller only outputs high and low levels, the on-off state of the triode cannot be changed, and the motion state of the motor cannot be changed, so that even if the MCU mistakenly triggers to output the high and low levels under severe external interference or the program runs away to output the high and low levels, the level state of the input end of the motor driving chip cannot be mistakenly triggered to be changed, the working state of the motor cannot be randomly changed, and the use safety of the intelligent lock is enhanced.
Example two
An intelligent lock motor control method is applied to the intelligent lock motor control circuit in the first embodiment, and comprises the following steps:
step S1: receiving an open/close door signal; the door opening/closing signal is sent by an identity identification module on the intelligent lock, and the identity identification module can generate a door opening or closing signal after the identity identification of the user is successfully verified.
Step S2: generating two corresponding PWM signals according to the opening/closing signals, and acquiring duty ratios of the two PWM signals;
in the first embodiment, it is mentioned that the pulse width modulation circuit includes four paths of PWM signal input units, and an output terminal of the micro control unit is connected to the four paths of PWM signal input units, and when the micro control unit receives a door opening signal, two paths of PWM signals generated are a PWM1 signal with a low duty ratio and a PWM4 signal with a high duty ratio, where the PWM1 signal correspondingly flows through the PWM1 signal input unit, and the PWM4 signal flows through the PWM4 signal input unit; if a door closing signal is received, a high duty ratio PWM2 signal and a low duty ratio PWM3 signal are generated, wherein the PWM2 signal correspondingly flows through the PWM2 signal input unit, and the PWM3 signal flows through the PWM3 signal input unit.
Step S3: respectively controlling the two pulse width modulation circuits corresponding to the two PWM signals to be conducted according to different duty ratios, thereby controlling the level states of two input ends of the driving circuit;
if the received signal is a door opening signal, the PWM1 signal with low duty ratio enables a triode Q1 in the PWM1 signal input unit to be conducted, and high level is provided for a first input end of the driving circuit; the PWM4 signal with high duty ratio enables a transistor Q4 in the PWM4 signal input unit to be conducted, and low level is provided for the second input end of the driving circuit; if a door closing signal is received, the PWM2 signal with high duty ratio enables a triode Q2 in the PWM2 signal input unit to be conducted, and low level is provided for a first input end of the driving circuit; the low duty cycle PWM3 signal turns on transistor Q3 of the PWM3 signal input unit to provide a high level to the second input of the driver circuit.
Step S4: the driving circuit controls the positive rotation or the negative rotation of the motor according to the level state of the input end of the driving circuit, so that the door opening or locking action of the intelligent lock is realized.
If the first input end of the driving circuit is at a high level and the second input end of the driving circuit is at a low level, the driving motor rotates forwards to realize the door opening action; if the first input end of the driving circuit is at a low level and the second input end is at a high level, the driving motor is driven to rotate reversely, and the door locking action is realized.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (10)
1. An intelligent lock motor control circuit, comprising:
the micro control unit is responsible for receiving the opening/closing signals and generating modulation signals with different duty ratios according to the opening/closing signals;
the pulse width modulation circuit is connected with a signal output port of the micro control unit, and controls the on/off state of the pulse width modulation circuit according to the duty ratio of a modulation signal transmitted by the micro control unit to provide different level signals for the drive circuit;
the input end of the driving circuit is connected with the pulse width modulation circuit, the output end of the driving circuit is connected with a motor, and the motor is controlled to rotate forward and backward according to different level signals provided by the pulse width modulation circuit, so that the intelligent lock can open or lock a door.
2. The intelligent lock motor control circuit of claim 1, wherein the pulse width modulation circuit comprises four paths of PWM signal input units, wherein the PWM1 and PWM2 signal input units are connected with a first input port of the driving circuit, the PWM3 and PWM4 signal input units are connected with a second input port of the driving circuit, the PWM1 signal input unit has the same structure as the PWM3 signal input unit, and the PWM2 signal input unit has the same structure as the PWM4 signal input unit.
3. The motor control circuit of claim 2, wherein the PWM1 signal input unit comprises a capacitor C1, a resistor R1, a resistor R2 and a PNP-type transistor Q1, the modulating signal is input to the capacitor C1 through the signal output port of the mcu, the capacitor C1 is connected in series with the resistor R2 and is connected to the base of the transistor Q1, one pin of the resistor R1 is connected to the power supply, the other pin is connected to the base of the transistor Q1, the emitter of the transistor Q1 is connected to the power supply, and the collector of the transistor Q1 is connected to the first input port of the driving circuit.
4. The motor control circuit of claim 2, wherein the PWM2 signal input unit comprises a capacitor C2, a resistor R3, a resistor R4 and an NPN-type transistor Q2, the modulation signal is input into the capacitor C2 through the signal output port of the mcu, the capacitor C2 is connected in series with the resistor R3 and is connected to the base of the transistor Q2, one pin of the resistor R4 is connected to the base of the transistor Q2, the other pin is connected to ground, the collector of the transistor Q2 is connected to the collector of the transistor Q1 in the signal input unit of the PWM1, and the emitter of the transistor Q2 is connected to ground.
5. An intelligent lock motor control circuit according to claim 1, wherein a bidirectional zener diode is connected to both input ports of the drive circuit.
6. The motor control circuit of claim 1, wherein the door opening/closing signal is generated by one or more of a biometric module, a password identification module, a card swiping identification module or a terminal identification module connected to the micro control unit.
7. An intelligent lock motor control method applied to the intelligent lock motor control circuit according to any one of claims 1 to 6, characterized by comprising the following steps:
step S1: receiving an open/close door signal;
step S2: generating two corresponding PWM signals according to the opening/closing signals, and acquiring duty ratios of the two PWM signals;
step S3: respectively controlling the two pulse width modulation circuits corresponding to the two PWM signals to be conducted according to different duty ratios, thereby controlling the level states of two input ends of the driving circuit;
step S4: the driving circuit controls the positive rotation or the negative rotation of the motor according to the level state of the input end of the driving circuit, so that the door opening or locking action of the intelligent lock is realized.
8. The intelligent lock motor control method according to claim 7, wherein if the door opening signal is received in step S2, the two PWM signals are a low duty ratio PWM1 signal and a high duty ratio PWM4 signal; if a door closing signal is received, a high duty cycle PWM2 signal and a low duty cycle PWM3 signal are generated.
9. The intelligent lock motor control method according to claim 7, wherein the pulse width modulation circuit conduction control method in step S3 is: if the received signal is a door opening signal, the PWM1 signal with low duty ratio enables a triode Q1 in the PWM1 signal input unit to be conducted, and high level is provided for a first input end of the driving circuit; the PWM4 signal with high duty ratio enables a transistor Q4 in the PWM4 signal input unit to be conducted, and low level is provided for the second input end of the driving circuit; if a door closing signal is received, the PWM2 signal with high duty ratio enables a triode Q2 in the PWM2 signal input unit to be conducted, and low level is provided for a first input end of the driving circuit; the low duty cycle PWM3 signal turns on transistor Q3 of the PWM3 signal input unit to provide a high level to the second input of the driver circuit.
10. The intelligent lock motor control method according to claim 7, wherein the method for controlling the forward and reverse rotation of the motor according to the level status in step S4 comprises: if the first input end of the driving circuit is at a high level and the second input end of the driving circuit is at a low level, the driving motor rotates forwards to realize the door opening action; if the first input end of the driving circuit is at a low level and the second input end is at a high level, the driving motor is driven to rotate reversely, and the door locking action is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911044763.5A CN110630109B (en) | 2019-10-30 | 2019-10-30 | Intelligent lock motor control circuit and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911044763.5A CN110630109B (en) | 2019-10-30 | 2019-10-30 | Intelligent lock motor control circuit and control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110630109A true CN110630109A (en) | 2019-12-31 |
| CN110630109B CN110630109B (en) | 2024-03-26 |
Family
ID=68978439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911044763.5A Active CN110630109B (en) | 2019-10-30 | 2019-10-30 | Intelligent lock motor control circuit and control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110630109B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112353280A (en) * | 2020-10-23 | 2021-02-12 | 深圳市凡事宝科技有限公司 | Soap dispenser capable of controlling liquid outlet amount through distance between hand and sensor |
| CN113685302A (en) * | 2021-08-10 | 2021-11-23 | 科世达(上海)机电有限公司 | Vehicle IGN power-off method and control circuit capable of preventing false triggering |
| CN114251024A (en) * | 2021-12-21 | 2022-03-29 | 恩坦华汽车零部件（镇江）有限公司 | PWM control-introduced self-closing automobile back door lock |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101155449A (en) * | 2006-09-25 | 2008-04-02 | 硕颉科技股份有限公司 | Width pulse modulation device and its control circuit and method and method |
| KR20120095243A (en) * | 2011-02-18 | 2012-08-28 | 매그나칩 반도체 유한회사 | Pwm controlling circuit and led driver circuit having the same in |
| CN105089407A (en) * | 2014-05-23 | 2015-11-25 | 株洲南车时代电气股份有限公司 | Door control device, system and method suitable for shield door and safety door |
| CN105089365A (en) * | 2014-05-23 | 2015-11-25 | 株洲南车时代电气股份有限公司 | Device, system and method for controlling door lock |
| CN207718204U (en) * | 2018-02-05 | 2018-08-10 | 杭州中恒派威电源有限公司 | The circuit of driving false triggering is prevented when a kind of MCU damages |
| CN211369854U (en) * | 2019-10-30 | 2020-08-28 | 广东科徕尼智能科技有限公司 | Intelligent lock motor control circuit |
-
2019
- 2019-10-30 CN CN201911044763.5A patent/CN110630109B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101155449A (en) * | 2006-09-25 | 2008-04-02 | 硕颉科技股份有限公司 | Width pulse modulation device and its control circuit and method and method |
| KR20120095243A (en) * | 2011-02-18 | 2012-08-28 | 매그나칩 반도체 유한회사 | Pwm controlling circuit and led driver circuit having the same in |
| CN105089407A (en) * | 2014-05-23 | 2015-11-25 | 株洲南车时代电气股份有限公司 | Door control device, system and method suitable for shield door and safety door |
| CN105089365A (en) * | 2014-05-23 | 2015-11-25 | 株洲南车时代电气股份有限公司 | Device, system and method for controlling door lock |
| CN207718204U (en) * | 2018-02-05 | 2018-08-10 | 杭州中恒派威电源有限公司 | The circuit of driving false triggering is prevented when a kind of MCU damages |
| CN211369854U (en) * | 2019-10-30 | 2020-08-28 | 广东科徕尼智能科技有限公司 | Intelligent lock motor control circuit |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112353280A (en) * | 2020-10-23 | 2021-02-12 | 深圳市凡事宝科技有限公司 | Soap dispenser capable of controlling liquid outlet amount through distance between hand and sensor |
| CN113685302A (en) * | 2021-08-10 | 2021-11-23 | 科世达(上海)机电有限公司 | Vehicle IGN power-off method and control circuit capable of preventing false triggering |
| CN113685302B (en) * | 2021-08-10 | 2022-09-30 | 科世达(上海)机电有限公司 | Vehicle IGN power-off method and control circuit capable of preventing false triggering |
| CN114251024A (en) * | 2021-12-21 | 2022-03-29 | 恩坦华汽车零部件（镇江）有限公司 | PWM control-introduced self-closing automobile back door lock |
| CN114251024B (en) * | 2021-12-21 | 2023-03-03 | 恩坦华汽车零部件（镇江）有限公司 | PWM control-introduced self-closing automobile back door lock |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110630109B (en) | 2024-03-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110630109B (en) | Intelligent lock motor control circuit and control method | |
| CN211369854U (en) | Intelligent lock motor control circuit | |
| CN112498138A (en) | Electronic lock driving circuit of direct-current charging gun | |
| CN103699005A (en) | Infrared gesture switch controller | |
| CN104868806B (en) | A kind of air conditioning for automobiles electron speed regulator signal generator | |
| CN204761345U (en) | Vehicle air conditioner electronic governor signal generator | |
| CN106130436B (en) | Motor driver and refrigerator | |
| CN106469903B (en) | Direct current generator one-way driver | |
| EP1078459B1 (en) | Device having a variable-speed motor | |
| CN114352132A (en) | Electromagnetic lock control circuit and control method | |
| CN111930037B (en) | Communication control system | |
| CN209855446U (en) | Solenoid valve lock and fingerprint trick lock with communication protocol | |
| CN210217394U (en) | Intelligent door lock with anti-trailing function | |
| KR100949466B1 (en) | A driver for luminous element | |
| CN215679105U (en) | Intelligent switch and intelligent household electrical appliance | |
| CN202004838U (en) | Mobile terminal with remote control function | |
| CN108073102B (en) | Communication method and communication control system for communication system | |
| WO2020201113A1 (en) | Automatic door operator and method for driving the same | |
| CN105450100A (en) | Brushless motor driving circuit and control method thereof | |
| CN211180603U (en) | Water induction control circuit | |
| CN205507944U (en) | Intelligence electric motor car key | |
| CN211152271U (en) | L ED control circuit applied to intelligent door lock | |
| CN110545054A (en) | Circuit for controlling synchronous motor by relay | |
| CN217106533U (en) | Electromagnetic lock control circuit | |
| CN105577019B (en) | SPM and air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 511434 No.1 and No.2, Shihua Road, Hualong Town, Panyu District, Guangzhou City, Guangdong Province Applicant after: Guangdong haomadame smart home Co.,Ltd. Address before: No.1, No.2 highway, No.2, Panyu, Guangzhou Applicant before: GUANGDONG KELAINI INTELLIGENT TECHNOLOGY Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |