CN109581227A - A kind of intelligent door lock energy-saving voltage detection circuit - Google Patents

A kind of intelligent door lock energy-saving voltage detection circuit Download PDF

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Publication number
CN109581227A
CN109581227A CN201910066900.9A CN201910066900A CN109581227A CN 109581227 A CN109581227 A CN 109581227A CN 201910066900 A CN201910066900 A CN 201910066900A CN 109581227 A CN109581227 A CN 109581227A
Authority
CN
China
Prior art keywords
detection circuit
switch
resistance
electronic switch
door 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.)
Pending
Application number
CN201910066900.9A
Other languages
Chinese (zh)
Inventor
沈汉标
王妙玉
童威云
王�义
田春红
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Ketyoo Intelligent Technology Co Ltd
Original Assignee
Guangdong Ketyoo Intelligent Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangdong Ketyoo Intelligent Technology Co Ltd filed Critical Guangdong Ketyoo Intelligent Technology Co Ltd
Priority to CN201910066900.9A priority Critical patent/CN109581227A/en
Publication of CN109581227A publication Critical patent/CN109581227A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16533Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
    • G01R19/16538Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
    • G01R19/16542Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies for batteries
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16566Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
    • G01R19/16576Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing DC or AC voltage with one threshold

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lock And Its Accessories (AREA)

Abstract

The invention discloses a kind of intelligent door lock energy-saving voltage detection circuits, including battery detection circuit, controller, first switch circuit, second switch circuit, controller has the detection mouth of input voltage signal and the control mouth for exporting low and high level signal, battery detection circuit is used to access the cell voltage output end of intelligent door lock, the output of battery detection circuit is connected to control mouth, first switch circuit is for driving second switch connecting and disconnecting of the circuit, second switch circuit is used to control the on-off of battery detection circuit input terminal, the input terminal of first switch circuit is connect with control mouth, when the voltage signal of battery detection circuit output is lower than the setting value of controller, controller is through control mouth control first switch circuit truncation, and then second switch circuit is truncated, realize battery detection circuit truncation.The present invention can carry out on-off selection according to demand and execute detection cell voltage, and power consumption is small, more energy efficient.

Description

A kind of intelligent door lock energy-saving voltage detection circuit
Technical field
The present invention relates to voltage detecting circuits, and in particular to a kind of intelligent door lock energy-saving voltage detection circuit.
Background technique
With the development of intelligent door lock technology, intelligent door lock enters huge numbers of families.Currently, intelligent door lock is generally electricity Pond power supply, the door lock moment detects cell voltage, causes power consumption higher, moreover, be led to that the high battery of power consumption is not durable, power consumption when work Greatly, power consumption is also high when static.Battery pollution environment is expended significantly, and tangible in this way increases customer using cost.
Summary of the invention
For overcome the deficiencies in the prior art, the purpose of the present invention is to provide a kind of intelligent door lock energy-saving voltage detection electricity Road can carry out on-off selection according to demand and execute detection cell voltage, and power consumption is small, more energy efficient.
The purpose of the present invention is achieved through the following technical solutions:
A kind of intelligent door lock energy-saving voltage detection circuit, including battery detection circuit, controller, first switch circuit, Two switching circuits, controller have the detection mouth of input voltage signal and the control mouth for exporting low and high level signal, electricity Pond detection circuit is used to access the cell voltage output end of intelligent door lock, and the output of battery detection circuit is connected to control mouth, the For one switching circuit for driving second switch connecting and disconnecting of the circuit, second switch circuit is used to control the logical of battery detection circuit input terminal Disconnected, the input terminal of first switch circuit is connect with control mouth, when the voltage signal of battery detection circuit output is lower than controller When setting value, controller is truncated through control mouth control first switch circuit, and then second switch circuit is truncated, and realizes battery inspection Slowdown monitoring circuit truncation.
Preferably, first switch circuit includes the first electronic switch, collector and the battery detecting electricity of the first electronic switch The output end on road connects, and the emitter ground connection of the first electronic switch, the base stage of the first electronic switch accesses control mouth.
Preferably, first switch circuit further includes first resistor and second resistance, and first resistor is connected to control mouth and Between the base stage of one electronic switch, second resistance be connected to the first electronic switch base stage and the first electronic switch emitter it Between.
Preferably, battery detection circuit includes 3rd resistor, the 4th resistance, the 5th resistance and the 6th resistance, second switch Circuit includes the second electronic switch, and the drain electrode of the 6th resistance and the second electronic switch accesses the cell voltage output of intelligent door lock End, the 5th resistance access the collector of the first electronic switch, the 6th resistance and the 5th resistance concatenation, the grid of the second electronic switch It is connected between the 6th resistance and the 5th resistance, the source electrode of the second electronic switch passes sequentially through the 4th resistance, 3rd resistor ground connection, inspection Mouth is surveyed to be connected between 3rd resistor and the 4th resistance.
Preferably, the both ends of 3rd resistor and it is connected to filter capacitor.
Preferably, detection mouth is accessed between 3rd resistor and the 4th resistance by a current-limiting resistance.
Preferably, controller MCU.
Preferably, first switch circuit includes the first electronic switch, and the first electronic switch is metal-oxide-semiconductor or triode.
Preferably, second switch circuit includes the second electronic switch, and the second electronic switch is metal-oxide-semiconductor or triode.
Compared with prior art, the invention has the following beneficial effects:
The present invention carrys out the on-off of on-off control first switch circuit since controller is utilized, and then controls second switch electricity The on-off on road, in this way, battery detection circuit just works when only second switch circuit is connected, so that energy consumption is reduced, moreover, this The configuration of invention so that for the electricity of intelligent door lock battery be need constantly to monitor numerical value could it is safer, once battery Electricity is lower than second class protection voltage range, since the voltage signal detected will be truncated accordingly lower than the setting value of controller First switch circuit, second switch circuit, will not thus detect voltage value again, from without the consumption of electricity, can accomplish to consume The low static power consumption of electricity is small, and in the idle situation of intelligent door lock, battery voltage signal is low and is led to battery detecting electricity of the present invention Road turns off not power consumption, realizes energy-saving and environment-friendly demand, greatly reduces product cost, has the high market competitiveness.
Detailed description of the invention
Fig. 1 is the connection schematic diagram of intelligent door lock energy-saving voltage detection circuit of the present invention.
Specific embodiment
The following further describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
A kind of intelligent door lock energy-saving voltage detection circuit as shown in Figure 1, including battery detection circuit, controller, first Switching circuit, second switch circuit, controller have the detection mouth of input voltage signal and for exporting low and high level signal Control mouth, battery detection circuit is used to access the cell voltage output end of intelligent door lock, the output termination of battery detection circuit To control mouth, first switch circuit is for driving second switch connecting and disconnecting of the circuit, and second switch circuit is for controlling battery detecting electricity The input terminal of the on-off of road input terminal, first switch circuit is connect with control mouth, when the voltage signal of battery detection circuit output Lower than controller setting value when, controller through control mouth control first switch circuit be truncated, and then make second switch circuit cut It is disconnected, realize battery detection circuit truncation.Carry out the on-off of on-off control first switch circuit since controller is utilized, and then controls The on-off of second switch circuit, in this way, battery detection circuit just works, to reduce consumption when only second switch circuit is connected Can, moreover, configuration of the invention, so that being to need constantly to monitor numerical value could more pacify for the electricity of intelligent door lock battery Entirely, once battery capacity is lower than second class protection voltage range, since the voltage signal detected is lower than the setting value of controller just Corresponding first switch circuit, second switch circuit can be truncated, will not thus detect voltage value again, from disappearing without electricity Consumption can accomplish that the low static power consumption of power consumption is small, and in the idle situation of intelligent door lock, battery voltage signal is low and is led to the present invention Battery detection circuit turns off not power consumption, realizes energy-saving and environment-friendly demand, greatly reduces product cost, has high market Competitiveness.
In this example, controller MCU can choose its model R5F100MGA, certainly, as needed, can choose it The MCU or CPU or single-chip microcontroller that can carry out data processing of his model.First switch circuit includes the first electronic switch Q1, the One electronic switch is metal-oxide-semiconductor or triode.Second switch circuit includes the second electronic switch Q2, and the second electronic switch is metal-oxide-semiconductor Or triode.
As preferred embodiment, first switch circuit includes the first electronic switch Q1, is selected as triode, the first electricity The collector C of sub switch and the output end of battery detection circuit connect, the emitter E ground connection of the first electronic switch, the first electronics The base stage B of switch accesses control mouth.Further, first switch circuit further includes first resistor R1 and second resistance R2, the first electricity Resistance R1 is connected between control mouth and the base stage B of the first electronic switch Q1, and second resistance R2 is connected to the first electronic switch Q1's Between base stage B and the emitter E of the first electronic switch Q1.
As preferred embodiment, battery detection circuit include 3rd resistor R3, the 4th resistance R4, the 5th resistance R5 and 6th resistance R6, second switch circuit include the second electronic switch Q2, are selected as metal-oxide-semiconductor, the 6th resistance R6 and the second electronic cutting The cell voltage output end of the drain D access intelligent door lock of Q2 is closed, the 5th resistance R5 accesses the collector of the first electronic switch Q1 C, the 6th resistance R6 and the 5th resistance R5 concatenation, the grid G of the second electronic switch Q2 are connected to the 6th resistance R6 and the 5th resistance R5 Between, the source S of the second electronic switch Q2 passes sequentially through the 4th resistance R4,3rd resistor R3 ground connection, and detection mouth is connected to third Between resistance R3 and the 4th resistance R4.Further, the both ends of 3rd resistor R3 and it is connected to filter capacitor C1.Specifically, detection mouth It is accessed between 3rd resistor R3 and the 4th resistance R4 by a current-limiting resistance R7.
Cell voltage 6V passes through the current collection of the 6th resistance R6 and the 5th resistance R5 to the first electronic switch Q1 as current limliting The grid G of pole C and the second electronic switch Q2 and the drain D of the second electronic switch Q2, the at this time emitter of the first electronic switch Q1 E, the grid G of the second electronic switch Q2, the drain D of the second electronic switch Q2 are high level, and the second electronic switch Q2 ends, the One electronic switch Q1 cut-off does not have power consumption at this time, i.e., exists without power consumption in battery detection circuit;By the finger that controller is arranged It enables, when controller control mouth exports base stage B of the high level to the first electronic switch Q1, due to the current collection of the first electronic switch Q1 Pole C has 6V by the 6th resistance R6 and the 5th resistance R5, so the collector C of the first electronic switch Q1 is high level, it is full Turn-on condition, that is, collector of the first electronic switch Q1 of foot is reverse-biased, emitter E positively biased.First electronic switch Q1 is connected so that the Two electronic switch Q2 conducting, cell voltage 6V pass through the second electronic switch Q2 to the 4th resistance R4 and 3rd resistor R3, due to this Csr controller is 3.3V work, so input cell voltage will be divided by 3rd resistor R3 and the 4th resistance R4, to control Device is protected;Filter capacitor C1 is that detection mouth voltage is filtered, and current-limiting resistance R7 is that detection mouth voltage carries out metering function So that the signal into controller is steady smooth voltage signal.The voltage that controller comes in detection mouth conveying judges And analysis, it is judged whether within setting range, if the base stage for continuing to output high level and if being given to the first electronic switch Q1 B, so that the first electronic switch Q1 is connected, the drain D of the second electronic switch Q2 is high level, and grid G is bottom level, the second electronics Switch Q2 is constantly on.If its voltage, not within setting range, controller output low level is given to the first electronic switch Q1's Base stage B, so that the first electronic switch Q1 is not turned on, the grid G of the second electronic switch Q2 is high level at this time, and drain D is high electricity It is flat, the second electronic switch Q2 cut-off.Cell voltage cannot pass through 3rd resistor R3, the 4th resistance R4 to discharge at this time.Controller The value of detection voltage comes whether discriminatory analysis to signal allow its work to intelligent door lock.
The implementation of the present invention is not limited to this, and above content according to the invention is known using the ordinary skill of this field Knowledge and customary means, under the premise of not departing from above-mentioned basic fundamental thought of the invention, the present invention can also make other a variety of shapes Modification, replacement or the combination of formula, all fall within rights protection scope of the present invention.

Claims (9)

1. a kind of intelligent door lock energy-saving voltage detection circuit, which is characterized in that opened including battery detection circuit, controller, first Powered-down road, second switch circuit, controller have the detection mouth of input voltage signal and for exporting low and high level signal Control mouth, battery detection circuit are used to access the cell voltage output end of intelligent door lock, and the output of battery detection circuit is connected to Control mouth, first switch circuit is for driving second switch connecting and disconnecting of the circuit, and second switch circuit is for controlling battery detection circuit The input terminal of the on-off of input terminal, first switch circuit is connect with control mouth, when the voltage signal of battery detection circuit output is low When the setting value of controller, controller is truncated through control mouth control first switch circuit, and then second switch circuit is truncated, Realize battery detection circuit truncation.
2. intelligent door lock energy-saving voltage detection circuit according to claim 1, which is characterized in that first switch circuit includes First electronic switch, the collector of the first electronic switch and the output end of battery detection circuit connect, the hair of the first electronic switch The base stage of emitter grounding, the first electronic switch accesses control mouth.
3. intelligent door lock energy-saving voltage detection circuit according to claim 2, which is characterized in that first switch circuit also wraps First resistor and second resistance are included, first resistor is connected between control mouth and the base stage of the first electronic switch, and second resistance connects It is connected between the base stage of the first electronic switch and the emitter of the first electronic switch.
4. intelligent door lock energy-saving voltage detection circuit according to claim 3, which is characterized in that battery detection circuit includes 3rd resistor, the 4th resistance, the 5th resistance and the 6th resistance, second switch circuit include the second electronic switch, the 6th resistance and The cell voltage output end of the drain electrode access intelligent door lock of second electronic switch, the 5th resistance access the current collection of the first electronic switch Pole, the 6th resistance and the 5th resistance concatenation, the grid of the second electronic switch are connected between the 6th resistance and the 5th resistance, the second electricity The source electrode of sub switch passes sequentially through the 4th resistance, 3rd resistor ground connection, and detection mouth is connected between 3rd resistor and the 4th resistance.
5. intelligent door lock energy-saving voltage detection circuit according to claim 4, which is characterized in that the both ends of 3rd resistor are simultaneously It is connected to filter capacitor.
6. intelligent door lock energy-saving voltage detection circuit according to claim 4, which is characterized in that detection mouth passes through a current limliting Resistance accesses between 3rd resistor and the 4th resistance.
7. intelligent door lock energy-saving voltage detection circuit according to claim 1-6, which is characterized in that controller is MCU。
8. intelligent door lock energy-saving voltage detection circuit according to claim 1, which is characterized in that first switch circuit includes First electronic switch, the first electronic switch are metal-oxide-semiconductor or triode.
9. intelligent door lock energy-saving voltage detection circuit according to claim 1, which is characterized in that second switch circuit includes Second electronic switch, the second electronic switch are metal-oxide-semiconductor or triode.
CN201910066900.9A 2019-01-24 2019-01-24 A kind of intelligent door lock energy-saving voltage detection circuit Pending CN109581227A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910066900.9A CN109581227A (en) 2019-01-24 2019-01-24 A kind of intelligent door lock energy-saving voltage detection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910066900.9A CN109581227A (en) 2019-01-24 2019-01-24 A kind of intelligent door lock energy-saving voltage detection circuit

Publications (1)

Publication Number Publication Date
CN109581227A true CN109581227A (en) 2019-04-05

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Application Number Title Priority Date Filing Date
CN201910066900.9A Pending CN109581227A (en) 2019-01-24 2019-01-24 A kind of intelligent door lock energy-saving voltage detection circuit

Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111286926A (en) * 2020-03-06 2020-06-16 海信(山东)冰箱有限公司 Washing machine
CN111855041A (en) * 2020-07-27 2020-10-30 深圳华强技术有限公司 Intelligent door and window switch detection device based on NB-IOT and detection method thereof

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205176120U (en) * 2015-11-20 2016-04-20 杭州云柚科技有限公司 Battery voltage acquisition circuit of low -power consumption
WO2018103417A1 (en) * 2016-12-06 2018-06-14 广州视源电子科技股份有限公司 Terminal apparatus, read-write apparatus, data transmission system and hardware initialization method
CN207583111U (en) * 2017-12-13 2018-07-06 深圳旦倍科技有限公司 A kind of intelligent door lock and low-power consumption observation circuit
CN108376436A (en) * 2018-04-28 2018-08-07 深圳市长恩实业有限公司 Intelligent door lock
CN108631289A (en) * 2018-08-24 2018-10-09 广东好太太科技集团股份有限公司 A kind of power input protection circuit of intelligent door lock
CN109256752A (en) * 2018-11-20 2019-01-22 北京千丁互联科技有限公司 Battery protecting circuit and power supply system
CN209471217U (en) * 2019-01-24 2019-10-08 广东科徕尼智能科技有限公司 A kind of intelligent door lock energy-saving voltage detection circuit

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205176120U (en) * 2015-11-20 2016-04-20 杭州云柚科技有限公司 Battery voltage acquisition circuit of low -power consumption
WO2018103417A1 (en) * 2016-12-06 2018-06-14 广州视源电子科技股份有限公司 Terminal apparatus, read-write apparatus, data transmission system and hardware initialization method
CN207583111U (en) * 2017-12-13 2018-07-06 深圳旦倍科技有限公司 A kind of intelligent door lock and low-power consumption observation circuit
CN108376436A (en) * 2018-04-28 2018-08-07 深圳市长恩实业有限公司 Intelligent door lock
CN108631289A (en) * 2018-08-24 2018-10-09 广东好太太科技集团股份有限公司 A kind of power input protection circuit of intelligent door lock
CN109256752A (en) * 2018-11-20 2019-01-22 北京千丁互联科技有限公司 Battery protecting circuit and power supply system
CN209471217U (en) * 2019-01-24 2019-10-08 广东科徕尼智能科技有限公司 A kind of intelligent door lock energy-saving voltage detection circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111286926A (en) * 2020-03-06 2020-06-16 海信(山东)冰箱有限公司 Washing machine
CN111855041A (en) * 2020-07-27 2020-10-30 深圳华强技术有限公司 Intelligent door and window switch detection device based on NB-IOT and detection method thereof

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