CN219626058U - Bluetooth lock - Google Patents
Bluetooth lock Download PDFInfo
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- CN219626058U CN219626058U CN202320307649.2U CN202320307649U CN219626058U CN 219626058 U CN219626058 U CN 219626058U CN 202320307649 U CN202320307649 U CN 202320307649U CN 219626058 U CN219626058 U CN 219626058U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The application provides a Bluetooth lock, wherein the Bluetooth lock comprises: the Bluetooth control system comprises a plurality of switch units, a control signal generating unit, a power management unit, a Bluetooth main control unit and a management control unit, wherein each switch unit is respectively connected with the input end of the control signal generating unit, the output end of the control signal generating unit is connected with the control signal input end of the power management unit, the voltage output end of the power management unit is respectively connected with the power supply end of the Bluetooth main control unit and the power supply end of the management control unit, and the power management unit is used for supplying power to the Bluetooth main control unit and the management control unit under the control of the control signals output by the control signal generating unit. According to the application, the control signal generating unit is controlled by each switch unit to send out the enabling signal so that the power management unit supplies power to the Bluetooth main control unit and the management control unit, and the Bluetooth main control unit and the management control unit can be started according to the actions of each switch unit, so that the Bluetooth lock achieves the effect of low-power consumption control.
Description
Technical Field
The application relates to the technical field of electronic locks, in particular to a Bluetooth lock.
Background
With the gradual improvement of life quality, people pay more and more attention to property safety. Therefore, people often use various locks to protect property, and bluetooth locks are gradually brought into the field of view of people.
At present, most of bluetooth locks adopt disposable batteries to supply power, in order to prolong equipment life, can use low-power consumption main control chip and timing power shutoff delay chip to reduce the electric quantity loss generally, and can increase the watchdog function on main control chip and guarantee bluetooth lock stability.
However, the low-power consumption main control chip in the bluetooth lock still cannot meet the long-time standby power consumption, and the power consumption can be greatly increased by using the watchdog function. When the timing power supply is used for turning off the delay chip, the power-off time cannot be controlled in real time, and configuration is often needed according to the maximum use time of the Bluetooth lock, and unnecessary electric quantity loss is caused. And because the bluetooth lock adopts disposable battery power supply, so the electric quantity loss can lead to bluetooth lock life-span to shorten.
Disclosure of Invention
The utility model aims to provide a Bluetooth lock aiming at the defects in the prior art, so as to solve the problem of low service life caused by high power consumption of the Bluetooth lock in the prior art.
In order to achieve the above purpose, the technical scheme adopted by the embodiment of the utility model is as follows:
an embodiment of the present utility model provides a bluetooth lock, including: the Bluetooth control system comprises a plurality of switch units, a control signal generation unit, a power management unit, a Bluetooth main control unit and a management control unit;
Each switch unit is connected with the input end of the control signal generating unit respectively;
the output end of the control signal generating unit is connected with the control signal input end of the power management unit;
the voltage output end of the power supply management unit is respectively connected with the power supply end of the Bluetooth main control unit and the power supply end of the management control unit;
the power management unit is used for supplying power to the Bluetooth main control unit and the management control unit under the control of the control signal output by the control signal generation unit.
Optionally, the control signal generating unit includes: a NAND logic unit;
each input end of the NAND logic unit is respectively connected with a switch unit, and the output end of the NAND logic unit is connected with the control signal input end of the power management unit;
the NAND logic unit is used for outputting a high-level signal to the power management unit when any switch unit outputs a low-level signal.
Optionally, the output end of the nand logic unit is connected with the control signal input end of the power management unit through a first diode.
Optionally, the power management unit includes: a power management chip;
The power management chip includes: a voltage input pin, a control signal input pin, and a voltage output pin;
the control signal input pin is used as the control signal input end, and the voltage output pin is used as the voltage output end;
the voltage input pin is used for inputting an initial power supply voltage;
the power management chip is used for converting the initial power supply voltage and outputting the initial power supply voltage to the power supply end of the Bluetooth main control unit and the power supply end of the management control unit through the voltage output pin when the control signal input by the control signal input pin is at a high level.
Optionally, the power management unit further includes: a first capacitor;
one end of the first capacitor is connected with the voltage output pin of the power management chip, and the other end of the first capacitor is grounded.
Optionally, the management control unit includes: a micro control unit;
the power supply pin of the micro control unit is connected with the voltage output end of the power supply management unit;
the first signal input pin and the second signal input pin of the micro control unit are connected with the Bluetooth main control unit, and the signal output pin of the micro control unit is connected with the control signal input end of the power management unit;
The micro control unit receives a first signal of the Bluetooth main control unit through the first signal input pin;
the micro control unit receives a second signal of the Bluetooth main control unit through the second signal input pin, wherein the second signal is used for indicating the power management unit to stop supplying power;
the micro control unit is used for outputting a high-level signal or a low-level signal to the control signal input end of the power management unit through the signal output pin under the action of the first signal or the second signal;
the power management unit is also used for supplying power to the Bluetooth main control unit and the management control unit under the action of the high-level signal output by the signal output pin, and stopping supplying power to the Bluetooth main control unit and the management control unit under the action of the low-level signal output by the signal output pin.
Optionally, a signal output pin of the micro control unit is connected with a control signal input end of the power management unit through a second diode.
Optionally, the management control unit further includes: a second capacitor;
one end of the second capacitor is connected with a power supply pin of the micro control unit, and the other end of the second capacitor is grounded.
Optionally, the management control unit further includes: a first resistor;
one end of the first resistor is connected with a second signal input pin of the micro control unit, and the other end of the first resistor is grounded.
Optionally, the plurality of switch units include: a button unit and a lock lever unit.
The beneficial effects of the application are as follows: the Bluetooth lock comprises a plurality of switch units, a control signal generating unit, a power management unit, a Bluetooth main control unit and a management control unit. The power supply management unit is used for supplying power to the Bluetooth main control unit and the management control unit under the control of the control signals output by the control signal generation unit. The control signal generating unit controls the power management unit to supply power to the Bluetooth main control unit and the management control unit according to the signals sent by the switch units, and the Bluetooth main control unit and the control unit can be powered by starting the switch, so that the Bluetooth lock is opened and is enabled to respond correspondingly, and the Bluetooth lock is prevented from responding correspondingly at any time by waiting for a long time, thereby causing electric energy waste. Therefore, the embodiment can reduce the power consumption of the Bluetooth lock and prolong the service life of the Bluetooth lock.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of an application scenario of a bluetooth lock according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a bluetooth lock according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a control signal generating unit of a bluetooth lock according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a power management unit of a bluetooth lock according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a management control unit of a bluetooth lock according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a switch unit of a bluetooth lock according to an embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application, and it should be understood that the drawings in the present application are for the purpose of illustration and description only and are not intended to limit the scope of the present application. In addition, it should be understood that the schematic drawings are not drawn to scale. A flowchart, as used in this disclosure, illustrates operations implemented according to some embodiments of the present application. It should be understood that the operations of the flow diagrams may be implemented out of order and that steps without logical context may be performed in reverse order or concurrently. Moreover, one or more other operations may be added to or removed from the flow diagrams by those skilled in the art under the direction of the present disclosure.
In addition, the described embodiments are only some, but not all, embodiments of the application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present application.
It should be noted that the term "comprising" will be used in embodiments of the application to indicate the presence of the features stated hereafter, but not to exclude the addition of other features.
In the description of the present application, it should be noted that the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.
In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
In the prior art, a bluetooth lock generally adopts a disposable battery as a power supply, and in order to prolong the service life of equipment, the power consumption, especially the power consumption in a standby state, is required to be reduced, and a bluetooth main control chip with low power consumption and a timing power supply turn-off delay chip are mainly adopted. However, the Bluetooth lock is still in a standby state for a long time by adopting the Bluetooth main control chip with low power consumption, and the power consumption is still larger. The power-off time cannot be adjusted according to the actually executed actions by using the timing power-off delay chip, and the configuration is usually required according to the execution maximum time length, which also inevitably causes unnecessary energy consumption.
Therefore, the application provides a Bluetooth lock, which comprises a plurality of switch units, a control signal generating unit, a power management unit, a Bluetooth main control unit and a management control unit, wherein the switch units control the control signal generating unit to send out an enabling signal to enable the power management unit to supply power to the Bluetooth main control unit and the management control unit, and the Bluetooth main control unit and the management control unit can be started according to the actions of the switch units, so that the Bluetooth lock achieves the effect of low-power consumption control. The power supply control unit stops supplying power to the Bluetooth main control unit and the management control unit under the action of the low-level signal sent by the Bluetooth main control unit, so that the Bluetooth lock can achieve a self-outage function, and the Bluetooth lock can achieve the effect of ultra-low power consumption control.
Fig. 1 is a schematic diagram of an application scenario of a bluetooth lock according to an embodiment of the present application. The Bluetooth lock can be used for guaranteeing the safety of goods in the container in logistics transportation. As shown in fig. 1, the bluetooth lock 100 includes a button 200 and a locking bar 300, one side of the locking bar 300 is fixed to the lock body of the bluetooth lock 100, and the other side of the locking bar 300 can be pulled out from the lock body of the bluetooth lock 100 and can be moved. Specifically, in the process of locking by using the Bluetooth lock, the lock rod is inserted into the lock body after penetrating the door bayonet, and the power management unit in the Bluetooth lock is triggered to supply power to the Bluetooth main control unit and the management control unit, so that the Bluetooth main control unit can communicate with the terminal through Bluetooth, and the sealing process is completed. In the process of unlocking by using the Bluetooth lock, the button is pressed for a long time, and the power management unit in the Bluetooth lock is triggered to supply power to the Bluetooth main control unit and the management control unit, so that the Bluetooth main control unit and the terminal communicate through Bluetooth, the lock body can be pulled out by the lock rod, and the container door can be opened to complete the deblocking process. In the process of sealing and unsealing the Bluetooth lock, the Bluetooth main control unit in the Bluetooth lock can be awakened to communicate with the terminal, so that the Bluetooth lock is in a starting-up state. At this time, if the terminal sends a closing signal to the bluetooth master control unit, or if the terminal does not communicate with the bluetooth master control unit for a long time, the bluetooth master control unit sends corresponding information to the management control unit to enable the management control unit to control the power management unit to stop supplying power, so that the bluetooth lock is closed, and electric energy loss is avoided. In the process of communication between the Bluetooth lock and the terminal, the Bluetooth lock can send state data to the terminal and can receive instruction information such as lock closing and the like sent by the terminal. Specifically, the terminal may be a man-machine interaction device with processing capability, and the terminal type and the content of the sent instruction information are not limited herein.
Fig. 2 is a schematic diagram of a bluetooth lock. As shown in fig. 2, the bluetooth lock includes a plurality of switching units 10, a control signal generating unit 20, a power management unit 30, a bluetooth master control unit 50, and a management control unit 40.
Optionally, each switching unit 10 is connected to an input of the control signal generating unit 20.
Alternatively, the user may activate the bluetooth lock by activating each switch unit 10. Illustratively, the switches in the switch unit 10 may be a push button 200 and a lock lever 300 as shown in fig. 1.
Optionally, after the switch unit 10 is started, the started switch unit 10 in the bluetooth lock sends a low level signal to the control signal generating unit 20, triggers the control signal generating unit 20 to start and sends a high level signal to the power management unit 30 to supply power to the management control unit 40 and the bluetooth master control unit 50, and after the bluetooth master control unit 50 is started, bluetooth communication can be performed with a terminal, and the terminal can control the management control unit 40 to send a signal through the bluetooth master control unit 50, so as to control whether the power management unit is powered on or not, thereby controlling the bluetooth lock to keep on or off.
Optionally, the output terminal of the control signal generating unit 20 is connected to the control signal input terminal of the power management unit 30.
Alternatively, the control signal generating unit 20 may transmit the corresponding signal to the power management unit 30 according to the signal transmitted from each of the switching units 10. In an alternative embodiment, the control signal generating unit 20 may transmit a high level signal to the power management unit 30 according to a low level signal transmitted from each of the switching units 10, when the power management unit 30 is activated. In another alternative embodiment, the control signal generating unit 20 may send a low level signal to the power management unit 30 when each switch unit 10 sends a high level signal, if the power management unit 30 does not receive the high level signal from the management control unit 40, the power management unit 30 does not supply power to the management control unit 40 and the bluetooth master unit 50 at this time, and if the power management unit 30 receives the high level signal from the management control unit 40, the power management unit 30 supplies power to the management control unit 40 and the bluetooth master unit 50 at this time.
Optionally, the voltage output end of the power management unit 30 is connected to the power supply end of the bluetooth master control unit 50 and the power supply end of the management control unit 40, respectively.
Alternatively, the power management unit 30 is configured to supply power to the bluetooth master control unit 50 and the management control unit 40 under the control of the control signal output from the control signal generating unit 20.
Alternatively, when the power management unit 30 receives the high level signal from the control signal generation unit 20, a voltage signal may be generated to supply power to the bluetooth master control unit 50 and the management control unit 40. When the power management unit 30 receives that the signal sent from the control signal generating unit 20 is low level, no corresponding response is made. It should be noted that the power management unit 30 may convert the input voltage into a voltage that can be used by the bluetooth master control unit 50 and the management control unit 40 according to the received control signal.
Optionally, after receiving the power supply signal, the bluetooth master control unit 50 may perform information interaction with the terminal device. For example, after the bluetooth master control unit 50 is started, bluetooth lock position information may be sent to the terminal device, and lock closing information sent by the terminal device may also be received.
In this embodiment, the bluetooth lock includes a plurality of switch units, a control signal generating unit, a power management unit, a bluetooth master control unit, and a management control unit. The power supply management unit is used for supplying power to the Bluetooth main control unit and the management control unit under the control of the control signals output by the control signal generation unit. The control signal generating unit controls the power management unit to supply power to the Bluetooth main control unit and the management control unit according to the signals sent by the switch units, and the Bluetooth main control unit and the control unit can be powered by starting the switch, so that the Bluetooth lock is opened and is enabled to respond correspondingly, and the Bluetooth lock is prevented from responding correspondingly at any time by waiting for a long time, thereby causing electric energy waste. Therefore, the embodiment can reduce the power consumption of the Bluetooth lock and prolong the service life of the Bluetooth lock.
Fig. 3 is a schematic diagram of the structure of the control signal generating unit 20 of the bluetooth lock. The control signal generation unit 20 in the bluetooth lock will be described in detail with reference to fig. 3.
Optionally, the control signal generating unit 20 includes: and a NAND logic unit U1. The input ends of the NAND logic unit U1 are respectively connected with a switch unit 10, and the output end of the NAND logic unit is connected with the control signal input end of the power management unit 30.
Alternatively, the nand logic unit U1 is configured to output a high level signal to the power management unit 30 when any one of the switch units 10 outputs a low level signal.
Alternatively, the nand logic is formed by superposition of the and logic and the no logic. The NAND logic unit U1 has a plurality of input terminals. When all the input ends receive the high level, the output end of the NAND logic unit U1 outputs the low level, and when at least one input end receives the low level, the output end of the NAND logic unit U1 outputs the high level.
Optionally, after any switch unit 10 is started, a low level signal is sent to the nand logic unit U1, and after the nand logic unit U1 receives the low level signal, the low level signal is converted into a high level signal, and the high level signal is sent to the control signal input end of the power management unit 30, so that the power management unit 30 is started.
Optionally, the control signal generating unit 20 further includes a power module. The nand logic unit U1 includes a first input pin a, a second input pin B, a ground pin GND, a first voltage input pin VCC, and a voltage output pin Y. The power supply module includes a voltage input port and a third capacitor C3. The voltage input port is used for accessing the supply voltage VBAT. Specifically, the first input pin a and the second input pin B are respectively connected to each switch unit 10, the ground pin GND is used for grounding, the voltage input pin VCC is connected to a voltage input port, the first voltage input pin VCC is further connected to one end of the third capacitor C3, the other end of the third capacitor C3 is grounded, and the first voltage input pin VCC is connected to the power management unit 30.
Alternatively, the voltage input port may provide the initial voltage to the nand logic unit U1 so that it can respond correspondingly according to the signal sent by the switch unit 10, and the third capacitor C3 may filter to stabilize the input voltage of the nand logic unit U1. Illustratively, the voltage of the voltage input port is provided by a battery, which may provide a voltage of 3.6 volts.
In this embodiment, when the nand logic unit outputs a low-level signal at any switch unit, a high-level signal is output to the power management unit, so that a user can trigger the power management unit after starting the switch, thereby starting the whole bluetooth lock, and further achieving the purposes of reducing the power consumption of the bluetooth lock and prolonging the service life of the bluetooth lock.
Optionally, the output terminal of the nand logic unit U1 is connected to the control signal input terminal of the power management unit 30 through the first diode D1.
Optionally, the voltage output pin Y of the nand logic unit U1 is connected to the positive pole of the first diode D1, and the negative pole of the first diode D1 is connected to the control signal input terminal of the power management unit 30.
Optionally, the output end of the nand logic unit U1 outputs a high level signal, and the high level signal enters the control signal input end of the power management unit 30 through the first diode D1, where the diode may be turned on unidirectionally, so as to start the power management unit 30, and further enable the power management unit 30 to supply power to the management control unit 40 and the bluetooth master control unit 50.
Next, the power management unit 30 is partially described in detail with reference to fig. 4.
Optionally, the power management unit 30 includes: and a power management chip U2.
Optionally, the power management unit 30 further includes a power module, where the power module includes a voltage input port, and a fourth capacitor C4.
Optionally, the power management chip U2 includes: voltage input pin IN, enable pin EN, and voltage output pin OUT.
Optionally, the power management chip U2 further includes a ground pin GND and a heat dissipation pin PAD. Specifically, the ground pin GND is used for grounding, and the heat dissipation pin PAD is used for grounding, so that the chip dissipates heat.
Optionally, the enable pin EN is used as a control signal input terminal, and the voltage output pin OUT is used as a voltage output terminal.
Optionally, the voltage input pin IN is used for inputting an initial supply voltage.
Specifically, the initial supply voltage input by the voltage input pin IN is from the power module. The voltage input pin VCC is connected to the voltage input port, the voltage input pin IN is further connected to one end of the fourth capacitor C4, and the other end of the fourth capacitor C4 is grounded.
Optionally, the voltage input port may provide an initial voltage for the power management chip U2 to enable the power management chip U2 to respond correspondingly according to the signal sent by the nand logic unit U1, and the fourth capacitor C4 may filter out the disordered voltage waveform, so that the input voltage of the power management chip U2 is stable.
Optionally, the power management chip U2 is configured to convert the initial power supply voltage and output the converted power supply voltage from the voltage output pin OUT to the power supply terminal of the bluetooth master unit 50 and the power supply terminal of the management control unit 40 when the control signal input by the enable pin EN is at a high level.
It should be noted that, the output voltage of the power management chip U2 is smaller than the initial supply voltage.
The power management chip U2 may be a LDO (low dropout regulator) chip, for example. The LDO chip is a low dropout linear voltage regulator, can be triggered at a high level, and can remove excess voltage in an input voltage and output the regulated voltage after receiving an enabling signal. Assuming an initial input voltage of 3.6 volts, the LDO may convert a 5V voltage signal to a 3.3 volt voltage and output after receiving an enable signal, i.e., a high level control signal.
Optionally, after the switch unit 10 is triggered, the switch unit 10 sends a low level signal to the nand logic chip U1, the nand logic unit U1 is triggered, and outputs a high level signal to the power management chip U2 through the first diode D1, the power management chip U2 is triggered, and converts an initial power supply voltage into an output voltage and sends the output voltage to the bluetooth master control unit 50 and the management control unit 40, so that the bluetooth master control unit 50 and the management control unit 40 are triggered and respond correspondingly.
In this embodiment, the power management unit includes a power management chip, where the power management chip includes a voltage input pin, a control signal input pin, and a voltage output pin, and the power management chip is configured to convert an initial power supply voltage and output the converted power supply voltage to a power supply end of the bluetooth master control unit and a power supply end of the management control unit through the voltage output pin when a control signal input by the control signal input pin is at a high level. The power management chip supplies power to the Bluetooth main control unit and the management control unit according to the control signals, and can control the Bluetooth main control unit and the management control unit to be opened, so that the effects of reducing the power consumption of the Bluetooth lock and prolonging the service life of the Bluetooth lock are achieved.
Optionally, the power management unit 30 further includes a first capacitor C1, one end of the first capacitor C1 is connected to the voltage output pin OUT of the power management chip U2, and the other end of the first capacitor C1 is grounded.
Optionally, the first capacitor C1 may filter to stabilize the output voltage of the power management chip U2, and send the stabilized voltage signal to the bluetooth master control unit 50 and the management control unit 40, so that the bluetooth master control unit 50 and the management control unit 40 receive the input voltage signal and start to operate.
The management control unit 40 is further explained below with reference to fig. 5.
Optionally, the management control unit 40 includes: and a micro control unit U3. The micro control unit U3 includes: the power supply pin VDD, the first signal input pin P12, the second signal input pin P13, the signal output pin P14, the reserved pin P11, and the ground pin GND. The reserved pin P11 can be connected with one end of the second resistor R2, the other end of the second resistor R2 is used for being grounded, and the reserved pin P11 can be connected with a module in the later development and use process of the Bluetooth lock and used for updating and upgrading the Bluetooth lock. The ground pin GND is for ground.
Optionally, the power supply pin VDD of the micro control unit U3 is connected to the voltage output terminal of the power management unit 30.
Alternatively, the power supply pin VDD of the micro control unit U3 may receive a voltage signal from the power management unit 30 and activate the micro control unit U3 to respond.
Optionally, the first signal input pin P12 and the second signal input pin P13 of the micro control unit U3 are connected to the bluetooth master control unit 50, and the signal output pin P14 of the micro control unit U3 is connected to the control signal input end of the power management unit 30.
Alternatively, the micro control unit U3 receives the first signal of the bluetooth master control unit 50 through the first signal input pin P12.
Optionally, the first signal input pin P12 of the micro control unit U3 may receive the first voltage signal sent by the bluetooth master control unit 50, and the micro control unit U3 may determine whether to output a low level signal according to the received signal, so that the bluetooth lock enters a power-off state.
It should be noted that, in the working state, the bluetooth master control unit 50 may regularly send a changed signal to the first signal input pin P12. When the button 200 and the lock lever 300 in the bluetooth lock are triggered, the power management unit 30 supplies power to the management control unit 40 and the bluetooth master control unit 50, and the bluetooth master control unit 50 is in a working state at this time, and when the bluetooth master control unit is in a working state, bluetooth communication is performed with the terminal. It should be noted that, when the bluetooth master control unit 50 does not communicate with the terminal for a period of time, or the terminal transmits the shutdown information to the bluetooth master control unit 50, the bluetooth master control unit 50 transmits a low level signal to the management control unit, and then exits the working state. When the micro control unit U3 receives the regularly changed signal within a certain time, it can determine that the bluetooth master control unit 50 is in a working state, and then outputs a high level signal. When the signal received by the micro control unit U3 does not change when a certain time is reached, it can be determined that the bluetooth master control unit 50 is not in an operating state, and thus a low level signal is output. The time for the micro control unit U3 to receive the signal may be preset.
For example, the micro control unit U3 may set the function of the watchdog, and preset the sleep time of the bluetooth lock to 5 minutes, when the micro control unit U3 and the bluetooth master control unit 50 are started, if the bluetooth master control unit 50 has a communication action with the terminal within 5 minutes, that is, the bluetooth master control unit 50 sends status data to the terminal or the terminal sends instruction information to the bluetooth master control unit 50, the micro control unit U3 is continuously subjected to the watchdog feeding action, and the micro control unit U3 receives the watchdog feeding information within 5 minutes and outputs a high level signal, so that the bluetooth lock continues to work. When the bluetooth master control unit 50 does not communicate with the terminal within 5 minutes, the feeding action of the micro control unit U3 is stopped, the micro control unit U3 does not receive the feeding information within 5 minutes, and a low-level signal is output, so that the bluetooth lock enters a shutdown state.
Optionally, the micro control unit U3 receives a second signal of the bluetooth master control unit 50 through the second signal input pin P13, where the second signal is used to instruct the power management unit 30 to stop supplying power.
Optionally, the second signal input pin P13 of the micro control unit U3 may receive the second voltage signal sent by the bluetooth master control unit 50, and the micro control unit U3 may determine whether to output a low level signal according to the received signal, so that the bluetooth lock enters a power-off state. It should be noted that the second signal received by the second signal input pin P13 of the micro control unit U3 is different from the first signal received by the first signal input pin P12, and is from a different pin of the bluetooth master control unit 50.
Alternatively, the bluetooth master control unit 50 may receive the power-off instruction information from the terminal and send a signal to the second signal input pin P13 of the management control unit 40, and the micro control unit U3 directly outputs a low level signal according to the signal received by the second signal input pin P13, so that the bluetooth lock is powered off.
Alternatively, the micro control unit U3 is configured to output a high level signal or a low level signal to the control signal input terminal of the power management unit 30 through the signal output pin P14 under the action of the first signal or the second signal.
Optionally, the signal output pin P14 of the micro control unit U3 is connected to a control signal input end of the power management unit 30, and the power management unit 30 can determine whether to output a voltage signal according to a signal sent by the micro control unit U3, so as to supply power to the management control unit 40 and the bluetooth master control unit 50.
Optionally, the power management unit 30 is further configured to supply power to the bluetooth master control unit 50 and the management control unit 40 under the action of the high level signal output by the signal output pin P14, and stop supplying power to the bluetooth master control unit 50 and the management control unit 40 under the action of the low level signal output by the signal output pin P14.
Optionally, after at least one switch unit 10 is started, a low-level signal is sent to the control signal generating unit 20, the nand logic unit U1 IN the control signal generating unit 20 converts the low-level signal into a high-level signal, and sends the high-level signal to the voltage input pin IN of the power management chip U2 IN the power management unit 30 through the first diode D1, and after the power management chip U2 determines that the received signal is the high-level signal, the initial power supply voltage is converted into a voltage signal to supply power to the bluetooth master control unit 50 and the management control unit 40.
The bluetooth master control unit 50 and the management control unit 40 are started after receiving the voltage signal sent by the power management unit 30. At this time, if the first signal input pin P12 of the management control unit 40 receives the continuously transformed first signal within a period of time, and the second signal input pin P13 does not receive the second signal, a high-level signal is output and sent to the voltage input pin IN of the power management chip U2 IN the power management unit 30, and at this time, the power management chip U2 determines that the received signal is the high-level signal, and then converts the initial power supply voltage into a voltage signal to supply power to the bluetooth master control unit 50 and the management control unit 40. At this time, the bluetooth lock is continuously in the on state, and the triggering state of the switch unit 10 does not affect the working state of the bluetooth lock.
At this time, if the second signal input pin P13 of the management control unit 40 does not receive the second signal, the first signal received by the first signal input pin P12 after a period of time is unchanged, it is determined that the bluetooth master control unit 50 is not operating, and therefore a low level signal is output and sent to the enable pin EN of the power management chip U2 in the power management unit 30. At this time, if any switch unit 10 is still triggered, the power management chip U2 may still receive the high level signal and power the bluetooth master control unit 50 and the management control unit 40, and the bluetooth lock is in an operating state. If all the switch units 10 are not triggered, the signal received by the power management chip U2 is a low level signal, and cannot supply power to the bluetooth master control unit 50 and the management control unit 40, so that the bluetooth lock enters a shutdown state.
At this time, if the second signal input pin P13 of the management control unit 40 receives the second signal, it is determined that the bluetooth master unit 50 transmits a shutdown command, and thus outputs a low level signal and transmits the low level signal to the enable pin EN of the power management chip U2 in the power management unit 30. At this time, if any switch unit 10 is still triggered, the power management chip U2 may still receive the high level signal and power the bluetooth master control unit 50 and the management control unit 40, and the bluetooth lock is in an operating state. If all the switch units 10 are not triggered, the signal received by the power management chip U2 is a low level signal, and cannot supply power to the bluetooth master control unit 50 and the management control unit 40, so that the bluetooth lock enters a shutdown state.
In this embodiment, the management control unit includes a micro control unit, where a power supply pin of the micro control unit is connected to a voltage output end of the management control unit, the micro control unit receives a first signal of the bluetooth master control unit through a first signal input pin, and the micro control unit receives a second signal of the bluetooth master control unit through a second signal input pin, where the second signal is used to instruct the power management unit to stop supplying power, and the micro control unit is used to output a high level signal or a low level signal to a control signal input end of the power management unit through a signal output pin under the action of the first signal or the second signal. The management control unit is used for receiving the signal sent by the Bluetooth main control unit to judge whether to send a high-level signal to the power management unit, and when the Bluetooth main control unit sends a continuously-changed first signal and does not send a second signal, the high-level signal is sent to the battery management unit, and at the moment, the Bluetooth lock can keep a continuous working state without starting the switch unit, and the Bluetooth lock can communicate with the terminal. When the management control unit does not receive the second signal and the first signal is unchanged for a period of time, it can be judged that the Bluetooth main control module does not work, a low-level signal is sent to the power management unit, and the power management unit cuts off voltage output so as to achieve the purpose of complete power failure. Whether the user operates the Bluetooth lock in a period of time can be judged through the management control unit, so that whether the power supply management unit provides power or not is controlled, the Bluetooth lock can be automatically closed in a period of time after the user does not operate the Bluetooth lock, the electric quantity loss is reduced, and the service life of the Bluetooth lock is prolonged. When receiving the second signal, the management control unit sends a low-level signal to the power management unit, so that the Bluetooth lock can be manually closed through the terminal, and unnecessary electric quantity waste caused by standby of the Bluetooth lock is reduced. The power management unit is controlled by introducing the management control unit, so that the electric quantity can be saved on the basis that the switch unit starts the Bluetooth lock, and the working time of the Bluetooth lock is prolonged. Next, with continued reference to fig. 5, the structure of the bluetooth lock will be described in detail.
Optionally, the signal output pin P14 of the micro control unit U3 is connected to the control signal input terminal of the power management unit 30 through the second diode D2.
Optionally, the signal output pin P14 of the micro control unit U3 is connected to the positive electrode of the second diode D2, and the negative electrode of the second diode D2 is connected to the enable pin EN of the power management chip U2. The signal from the micro control unit U3 can be turned on unidirectionally by the second diode D2.
It is noted that the first diode D1 and the second diode D2 may constitute an or logic unit. Specifically, if at least one of the signal output from the nand logic chip U1 and the signal output from the management control unit 40 is a high level signal, the power management unit 30 receives the high level signal and responds thereto. If the signal output from the nand logic unit U1 and the signal output from the management control unit 40 are both low level signals, the power management unit 30 receives the low level signals and does not respond.
Optionally, the management control unit 40 further includes a second capacitor C2, where one end of the second capacitor C2 is connected to the power supply pin VDD of the micro control unit U3, and the other end of the second capacitor is grounded.
Optionally, the second capacitor C2 connected to the power supply pin VDD of the micro control unit U3 is grounded, so as to perform low-pass filtering on the voltage signal sent by the power management unit 30.
Optionally, the management control unit 40 further includes a first resistor R1, one end of the first resistor R1 is connected to the second signal input pin P13 of the micro control unit U3, and the other end of the first resistor R1 is grounded.
Optionally, one end of the first resistor R1 is connected to the second signal input pin P13 of the micro control unit U3, and the first resistor R1 is grounded to avoid an interference signal, so as to reduce line impedance.
Next, each of the switch units 10 of the bluetooth lock will be described with reference to fig. 6.
Alternatively, the plurality of switch units 10 include a button unit 101 and a lock lever unit 102.
Illustratively, the button switch SW1 in the button unit 101 may be the button 200 in fig. 1, and the lock lever switch SW2 in the lock lever unit 102 may be the lock lever 300 in fig. 1.
Alternatively, the button unit 101 includes a button switch SW1, an electrostatic suppressor ESD1, a sixth capacitor C6, a third resistor R3 and an initial power supply terminal. One end of the button switch SW1 is grounded, the other end is connected with one end of the third resistor R3, one end of the third resistor R3 is used for being connected to an initial power supply end, the other end of the button switch SW1 is also used for being connected with one end of the electrostatic inhibitor ESD1, one end of the electrostatic inhibitor ESD1 is connected with one end of the sixth capacitor C6, the other end of the electrostatic inhibitor ESD1 is connected with the other end of the sixth capacitor C6, and the other end of the sixth capacitor C6 is grounded. The other end of the push button switch SW1 is also used for connection with the control signal generating unit 20.
Alternatively, when the button 200 is not pressed, i.e., the button switch SW1 is not triggered, the button unit 101 continuously outputs a high level signal to the input terminal of the control signal generating unit 20. When the button 200 is pressed, that is, the button switch SW1 is triggered, the button unit 101 outputs a low level signal to the input terminal of the control signal generating unit 20.
Optionally, the ESD1 and the sixth capacitor C6 are used to filter static electricity in the voltage signal and filter the voltage signal.
Alternatively, the latch unit 102 includes a latch switch SW2, a fifth capacitor C5 and a fourth resistor R4. One end of the lock lever switch SW2 is grounded, and the other end of the lock lever switch SW2 is connected to one end of the fifth capacitor C5, and the other end of the fifth capacitor C5 is grounded. The other end of the lock lever switch SW2 is further connected with one end of a fourth resistor R4, and the other end of the fourth resistor R4 is used for being connected with an initial power supply end. The other end of the lock lever switch SW2 is also used for the other input end of the control signal generating unit 20.
Alternatively, when the lock lever 300 is not inserted into the lock body, that is, when the lock lever switch SW2 is not triggered, the lock lever unit 102 transmits a high level signal to the control signal generating unit 20. When the lock lever 300 is inserted into the lock body, that is, when the lock lever switch SW2 is triggered, the lock lever unit 102 transmits a low level signal to the control signal generating unit 20.
Alternatively, the control signal generating unit 20 may determine whether to send a high level signal to the power management unit 30 according to the signals sent by the button unit 101 and the lock lever unit 102, and further, the power management unit 30 may supply power to the bluetooth master control unit 50 and the management control unit 40 according to the signals sent by the control signal generating unit 20, so as to start the bluetooth lock. Specifically, the button switch SW1 or the lock lever switch SW2 is triggered to convert the high level signal originally sent to the control signal generating unit 20 into the low level signal, thereby triggering the control signal generating unit 20.
In this embodiment, the plurality of switch units includes a button unit and a lock lever unit. The Bluetooth lock is controlled to be opened through the trigger button unit or the lock rod unit, so that the Bluetooth lock can be manually opened when needed, the electric energy loss caused by long-term standby of the Bluetooth lock is avoided, and the effect of prolonging the service life of the Bluetooth lock is further achieved.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. A bluetooth lock, comprising: the Bluetooth control system comprises a plurality of switch units, a control signal generation unit, a power management unit, a Bluetooth main control unit and a management control unit;
each switch unit is connected with the input end of the control signal generating unit respectively;
the output end of the control signal generating unit is connected with the control signal input end of the power management unit;
the voltage output end of the power supply management unit is respectively connected with the power supply end of the Bluetooth main control unit and the power supply end of the management control unit;
the power management unit is used for supplying power to the Bluetooth main control unit and the management control unit under the control of the control signal output by the control signal generation unit.
2. The bluetooth lock according to claim 1, wherein the control signal generating unit comprises: a NAND logic unit;
each input end of the NAND logic unit is respectively connected with a switch unit, and the output end of the NAND logic unit is connected with the control signal input end of the power management unit;
the NAND logic unit is used for outputting a high-level signal to the power management unit when any switch unit outputs a low-level signal.
3. The bluetooth lock according to claim 2, wherein the output of the nand logic unit is connected to the control signal input of the power management unit via a first diode.
4. The bluetooth lock according to claim 1, wherein the power management unit comprises: a power management chip;
the power management chip includes: a voltage input pin, a control signal input pin, and a voltage output pin;
the control signal input pin is used as the control signal input end, and the voltage output pin is used as the voltage output end;
the voltage input pin is used for inputting an initial power supply voltage;
the power management chip is used for converting the initial power supply voltage and outputting the initial power supply voltage to the power supply end of the Bluetooth main control unit and the power supply end of the management control unit through the voltage output pin when the control signal input by the control signal input pin is at a high level.
5. The bluetooth lock according to claim 4, wherein the power management unit further comprises: a first capacitor;
one end of the first capacitor is connected with the voltage output pin of the power management chip, and the other end of the first capacitor is grounded.
6. The bluetooth lock according to any of claims 1-5, wherein the management control unit comprises: a micro control unit;
the power supply pin of the micro control unit is connected with the voltage output end of the power supply management unit;
the first signal input pin and the second signal input pin of the micro control unit are connected with the Bluetooth main control unit, and the signal output pin of the micro control unit is connected with the control signal input end of the power management unit;
the micro control unit receives a first signal of the Bluetooth main control unit through the first signal input pin;
the micro control unit receives a second signal of the Bluetooth main control unit through the second signal input pin, wherein the second signal is used for indicating the power management unit to stop supplying power;
the micro control unit is used for outputting a high-level signal or a low-level signal to the control signal input end of the power management unit through the signal output pin under the action of the first signal or the second signal;
the power management unit is also used for supplying power to the Bluetooth main control unit and the management control unit under the action of the high-level signal output by the signal output pin, and stopping supplying power to the Bluetooth main control unit and the management control unit under the action of the low-level signal output by the signal output pin.
7. The bluetooth lock according to claim 6, wherein the signal output pin of the micro control unit is connected to the control signal input of the power management unit via a second diode.
8. The bluetooth lock according to claim 6, wherein the management control unit further comprises: a second capacitor;
one end of the second capacitor is connected with a power supply pin of the micro control unit, and the other end of the second capacitor is grounded.
9. The bluetooth lock according to claim 6, wherein the management control unit further comprises: a first resistor;
one end of the first resistor is connected with a second signal input pin of the micro control unit, and the other end of the first resistor is grounded.
10. The bluetooth lock according to claim 1, wherein the plurality of switch units comprises: a button unit and a lock lever unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320307649.2U CN219626058U (en) | 2023-02-23 | 2023-02-23 | Bluetooth lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320307649.2U CN219626058U (en) | 2023-02-23 | 2023-02-23 | Bluetooth lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219626058U true CN219626058U (en) | 2023-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320307649.2U Active CN219626058U (en) | 2023-02-23 | 2023-02-23 | Bluetooth lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219626058U (en) |
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2023
- 2023-02-23 CN CN202320307649.2U patent/CN219626058U/en active Active
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