CN110188739B - Fingerprint module, fingerprint lock and electronic equipment - Google Patents
Fingerprint module, fingerprint lock and electronic equipment Download PDFInfo
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- CN110188739B CN110188739B CN201910565832.0A CN201910565832A CN110188739B CN 110188739 B CN110188739 B CN 110188739B CN 201910565832 A CN201910565832 A CN 201910565832A CN 110188739 B CN110188739 B CN 110188739B
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- 239000004065 semiconductor Substances 0.000 description 5
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00563—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys using personal physical data of the operator, e.g. finger prints, retinal images, voicepatterns
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Abstract
The invention relates to a fingerprint module, a fingerprint lock and electronic equipment, which comprises a first electric input end, a first electric output end, a first switch tube, a second switch tube, a first resistor, an acquisition and identification module and a detection module, wherein the first electric input end is used for being connected with a first power supply, the first electric input end is connected with the first end of the first switch tube, the second end of the first switch tube is connected with the first electric output end, the first electric input end is connected with the control end of the first switch tube through the first resistor, the first electric input end is also connected with the first end of the second switch tube through the first resistor, the second end of the second switch tube is used for being grounded, the detection module is connected with the control end of the second switch tube, the first electric output end is connected with the acquisition and identification module, the acquisition and identification module is in a closed state when the acquisition and identification module is not required to work, and the detection module is required to wake up when the acquisition and identification module works, so that the power consumption of the fingerprint module can be reduced.
Description
Technical Field
The invention relates to the technical field of fingerprint acquisition, in particular to a fingerprint module, a fingerprint lock and electronic equipment.
Background
The fingerprint lock is a lock which can control the lock to be opened or closed according to the detected fingerprint information.
The fingerprint module is the core component of fingerprint lock, installs on devices such as fingerprint entrance guard or hard disk for accomplish the module of gathering and the discernment of fingerprint. The fingerprint module mainly comprises fingerprint collection module, fingerprint identification module, and fingerprint collection module is used for gathering user's fingerprint, and fingerprint identification module can be according to the fingerprint that fingerprint collection module gathered, matches with built-in fingerprint data to accomplish fingerprint identification. The fingerprint lock is generally applied outdoors, and is generally powered through the battery module, and the fingerprint module is in operation for a long time, so that the power consumption of the battery module is high, and the power consumption of the battery module is high.
Disclosure of Invention
Based on this, it is necessary to provide a fingerprint module, a fingerprint lock and an electronic device.
The utility model provides a fingerprint module, includes first electric input end, first electric output end, first switch tube, second switch tube, first resistance, gathers identification module and detection module, first electric input end is used for being connected with first power supply, first electric input end with first switch tube's first end is connected, first switch tube's second end with first electric output end is connected, first electric input end passes through first resistance with first switch tube's control end is connected, first electric input end still passes through first resistance with second switch tube's first end is connected, second switch tube's second end is used for the ground connection, detection module with second switch tube's control end is connected, first electric output end with gather identification module and be connected.
The fingerprint module, when not needing to gather identification module during operation, detection module control the second switch tube is cut off, and when detection module did not detect user's operation, detection module passes through the control end control of second switch tube the first end of second switch tube is in the disconnected state with the second end, and the voltage of the control end of first switch tube and first end equals, therefore first switch tube cuts off, and at this moment, first power supply can not be to gather identification module power supply to make gather identification module in the state of inoperability, thereby make gather identification module can not consume the electric quantity, so as to reduce the power consumption of gathering identification module at the inoperability. When the fingerprint is required to be acquired and identified through the acquisition and identification module, the operation of a user is detected through the detection module, the detection module is used for sending a control signal to the control end of the second switching tube according to the operation of the user, so that the first end and the second end of the second switching tube are conducted, when the second switching tube is conducted, the first end of the first switching tube is higher than the first switching tube because of higher resistance on a circuit communicated with the first resistor, the first switching tube is enabled to be conducted by the voltage higher than the first switching tube, the first switching tube is enabled to be conducted, the current of the first power supply flows to the acquisition and identification module, and the acquisition and identification module is enabled to work, and fingerprint information of the user is acquired and identified through the acquisition and identification module. In the working process of the fingerprint module, the acquisition and recognition module is in a closed state when the acquisition and recognition module is not required to work, and the acquisition and recognition module is required to be woken up by the detection module when the acquisition and recognition module works, so that the power consumption of the fingerprint module can be reduced.
In one embodiment, the device further comprises a second electric input end, a second electric output end, a third switch tube, a fourth switch tube, a fifth switch tube, a second resistor, a third resistor and a fourth resistor, wherein the acquisition identification module is connected with the control end of the third switch tube, the second electric input end is used for being connected with a first power supply, the second electric input end is connected with the first end of the third switch tube through the second resistor, the second end of the third switch tube is used for being grounded, the second electric input end is connected with the control end of the fourth switch tube through the third resistor, the second electric input end is connected with the first end of the fourth switch tube, the second end of the fourth switch tube is used for being grounded through the fourth resistor, the second end of the fourth switch tube is connected with the control end of the fifth switch tube, the second electric input end is connected with the first end of the fifth switch tube, and the second electric output end is connected with the second output end of the fourth switch tube.
In one embodiment, the system further comprises a sixth switching tube, the acquisition identification module is connected with the control end of the sixth switching tube, the first electric input end is connected with the first end of the sixth switching tube through the first resistor, and the second end of the sixth switching tube is used for being grounded.
In one embodiment, the electric power supply further comprises a seventh switching tube, wherein the control end of the seventh switching tube is used for being connected with a key, the first electric input end of the seventh switching tube is connected with the first end of the seventh switching tube through the first resistor, and the second end of the seventh switching tube is used for being grounded.
In one embodiment, the device further comprises an eighth switching tube, the first end of the first switching tube is connected with the first end of the eighth switching tube, the second end of the eighth switching tube is connected with the acquisition identification module, and the control end of the eighth switching tube is used for being connected with a second power supply.
In one embodiment, the battery module further comprises a first power supply, wherein the first power supply is a battery module, and the first electric input end is connected with the battery module.
In one embodiment, the detection module comprises a detection unit and a detection ring, the acquisition and identification module comprises a fingerprint acquisition unit and a fingerprint identification unit, the first electric output end is connected with the fingerprint identification unit, the fingerprint identification unit is connected with the fingerprint acquisition unit, the detection unit is connected with the control end of the second switch tube, the detection ring is connected with the detection unit, and the detection ring is arranged around the outer side of the fingerprint acquisition unit.
In one embodiment, the detection ring and the fingerprint acquisition unit are both arranged on a circuit board, and the height of the detection ring protruding from the circuit board is greater than or equal to the height of the fingerprint acquisition unit protruding from the circuit board.
A fingerprint lock comprising a fingerprint module as described in any one of the above embodiments.
An electronic device comprising a fingerprint module as in any one of the above embodiments.
Drawings
FIG. 1 is a schematic diagram of a portion of a circuit structure of a fingerprint module according to an embodiment;
FIG. 2 is a schematic diagram of a circuit structure of a fingerprint module according to an embodiment;
FIG. 3 is a schematic circuit diagram of a driving module according to an embodiment;
FIG. 4 is a schematic circuit diagram of a driving circuit according to an embodiment;
fig. 5 is a schematic perspective view of a detection ring and a fingerprint acquisition unit according to an embodiment.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1, in one embodiment, a fingerprint module is provided, including a first electrical input end U1, a first electrical output end U2, a first switch tube Q1, a second switch tube Q2, a first resistor R1, a collection and identification module (not shown) and a detection module (not shown), where the first electrical input end U1 is used for being connected to a first power supply source (not shown), the first electrical input end U1 is connected to a first end of the first switch tube Q1, a second end of the first switch tube Q1 is connected to the first electrical output end U2, the first electrical input end U1 is connected to a control end of the first switch tube Q1 through the first resistor R1, the first electrical input end U1 is also connected to a first end of the second switch tube Q2 through the first resistor R1, a second end of the second switch tube Q2 is used for being grounded, and the second end of the first switch tube Q2 is connected to the first electrical output end U2.
In this embodiment, the first switching tube Q1 is configured to be turned on when the voltage of the first end first switching tube Q1 is greater than the voltage of the control end of the first switching tube Q1, and to be turned off when the voltage of the first end first switching tube Q1 is equal to the voltage of the control end of the first switching tube Q1.
In this embodiment, the second switching tube Q2 is configured to be turned on when a control signal is input to a control end of the second switching tube Q2. In one embodiment, the second switching tube Q2 is configured to be turned on when a high level signal is input to a control terminal of the second switching tube Q2.
In this embodiment, the collection and identification module is used for gathering the fingerprint of user to and be used for discern the fingerprint of user, specifically, the collection and identification module includes fingerprint collection unit and fingerprint identification unit, first electricity output with fingerprint identification unit is connected, fingerprint identification unit with fingerprint collection unit is connected, promptly fingerprint collection unit is used for gathering the fingerprint of user, fingerprint identification unit is used for discernment user's fingerprint.
In one embodiment, the collection and identification module further includes a control unit, the first electrical output end is connected with the fingerprint identification module through the control unit, and the control unit is used for controlling the fingerprint collection unit and the fingerprint identification unit to start when the first electrical output end supplies power to the control unit. In one embodiment, the model of the control unit is GD32303C, so as to control the sixth switching tube to be turned on or off, and the control unit is used for controlling the fingerprint identification unit to be started.
According to the fingerprint module, when the acquisition and identification module is not required to work, the detection module controls the second switching tube Q2 to be turned off, when the detection module does not detect the operation of a user, the detection module controls the first end and the second end of the second switching tube Q2 to be in a disconnection state through the control end of the second switching tube Q2, therefore, the current of the first power supply flows to the control end of the first switching tube Q1 through the first resistor R1, and the current of the first power supply flows to the first end of the first switching tube Q1, namely, the current of the first power supply flows to the control end and the first end of the first switching tube Q1 at the same time, so that the voltage of the control end and the first end of the first switching tube Q1 is equal, the first power supply cannot supply power to the acquisition and identification module, and therefore the acquisition and identification module is in a non-working state. When the fingerprint is required to be acquired and identified by the acquisition and identification module, the detection module is used for detecting the operation of a user, and the detection module is used for sending a control signal to the control end of the second switching tube Q2 according to the operation of the user, so that the first end and the second end of the second switching tube Q2 are conducted, when the second switching tube Q2 is conducted, the current does not pass through the first resistor R1 due to higher resistance on a circuit communicated with the first resistor R1, the current of the first power supply flows to the first end of the first switching tube Q1, the voltage of the first end of the first switching tube Q1 is higher than the voltage of the control end of the first switching tube Q1, and the first switching tube Q1 is conducted, so that the current of the first power supply flows to the acquisition and identification module, and the acquisition and identification module works, and the fingerprint module acquires and identifies the fingerprint information of the user by the acquisition and identification module. In the working process of the fingerprint module, the acquisition and recognition module is in a closed state when the acquisition and recognition module is not required to work, and the acquisition and recognition module is required to be woken up by the detection module when the acquisition and recognition module works, so that the power consumption of the fingerprint module can be reduced.
When the fingerprint module is applied to the fingerprint lock, the power consumption of the fingerprint module is less, so that the overall power consumption of the fingerprint lock is less, and the electric quantity of the battery module of the fingerprint lock is more durable.
In order to further reduce the power consumption of the fingerprint module, as shown in fig. 2, in one embodiment, the fingerprint module further includes a second electrical input terminal U3, a second electrical output terminal U4, a third switching tube Q3, a fourth switching tube Q4, a fifth switching tube Q5, a second resistor R2, a third resistor R3, and a fourth resistor R4, the acquisition identification module (not shown) is connected with the control terminal of the third switching tube Q3, the second electrical input terminal U3 is connected with a first power supply, the second electrical input terminal U3 is connected with the first terminal of the third switching tube Q3 through the second resistor R2, the second terminal of the third switching tube Q3 is connected to the ground, the second electrical input terminal U3 is further connected with the control terminal of the fourth switching tube Q4 through the third resistor R3, the fourth switching tube Q4 is further connected with the fourth terminal of the fourth switching tube Q4, the fourth switching tube Q4 is connected with the fourth terminal of the fourth switching tube Q4 through the second terminal of the fourth switching tube Q4, and the fourth switching tube Q4 is connected with the fourth terminal of the fourth switching tube Q4. In this embodiment, the collection and identification module is configured to send a control signal to the control end of the third switching tube Q3 when the third switching tube Q3 is powered on, so that the third switching tube Q3 is turned on, and thus the fourth switching tube Q4 is turned on, and when the third switching tube Q3 and the fourth switching tube Q4 are turned on, the voltage at the first end of the fifth switching tube Q5 is equal to the voltage at the control end of the fifth switching tube Q5, so that the fifth switching tube Q5 is turned off, so that the second electrical input end U3 and the second electrical output end U4 are turned off, and the connection between the first power supply of the second electrical input end U3 and the detection module is turned off, so that the detection module is powered off and stops working. That is, when the collection and identification module is turned on, the detection module is controlled to stop working by the circuit.
In order to further save power consumption of the fingerprint module, as shown in fig. 1, in one embodiment, the fingerprint module further includes a sixth switching tube Q6, the collection and identification module (not shown) is connected to the control end of the sixth switching tube Q6, the first electrical input end U1 is connected to the first end of the sixth switching tube Q6 through the first resistor R1, and the second end of the sixth switching tube Q6 is used for grounding. The collection and identification module is used for controlling the on/off of the sixth switching tube Q6 through the control end of the sixth switching tube Q6.
It should be understood that, after the collection and identification module is turned on with the first power supply, the collection and identification module controls the detection module to be disconnected from the first power supply, so that the detection module changes the signal sent to the control end of the second switching tube Q2, so that the first power supply stably supplies power to the collection and identification module, in this embodiment, the collection and identification module sends a control signal to the sixth switching tube Q6, so that the first end and the second end of the sixth switching tube Q6 are turned on, at this time, the current of the first electric input end U1 does not pass through the first resistor R1, so that the voltage of the first end of the first switching tube Q1 is always greater than the voltage of the control end of the first switching tube Q1, and the first switching tube Q1 is not turned off due to the turn-off of the second switching tube Q2, so that the first power supply can stably supply power to the collection and identification module.
In order to enable the fingerprint module to enter a low power consumption state, in this embodiment, the collection and identification module controls the third switch tube to be turned off when a first preset time passes, so that the fourth switch tube is turned off, at this time, the voltage of the first end of the fifth switch tube is greater than the voltage of the control end of the fifth switch tube, so that the fifth switch tube is turned on, so that the second electric input end and the second electric output end are turned on, so that the first power supply of the second electric input end is turned on with the connection of the detection module, therefore, the detection module starts working due to conduction, and when the detection module is turned on, a control signal is sent to the control end of the second switch tube, so that the second switch tube is turned on. And the acquisition identification module controls the sixth switching tube to be turned off when the second preset time passes through, namely, the acquisition identification module controls the first end and the second end of the sixth switching tube to be turned off, when the second switching tube and the sixth switching tube are turned off, the voltage of the first end of the first switching tube is equal to that of the control end of the first switching tube, so that the first switching tube is turned off, the connection between the first power supply and the acquisition identification module is disconnected, and the fingerprint module enters a low-power consumption state.
In one embodiment, the first preset time is equal to the second preset time, that is, the second switching tube and the sixth switching tube are controlled to be turned off at the same time, so that the acquisition and identification module stops working. In one embodiment, the first preset time is different from the second preset time, and when the last one of the second switching tube and the sixth switching tube is turned off, the acquisition identification module is stopped.
In one embodiment, the control signal is a high level signal that can be used to control the switching on of the switching tube, and it should be understood that there is also a low level signal corresponding to the high level signal that can be used to control the switching off of the switching tube.
It should be understood that in the above embodiment, when the collection and identification module works, a high level signal is sent to the control end of the third switching tube to control the detection module to stop working. And when the acquisition identification module is disconnected from the power supply of the first power supply, a low-level signal is sent to the control end of the third switching tube so as to control the detection module to start working. Because the energy consumption of the high-level signal is greater than that of the low-level signal, in the embodiment, the acquisition identification module does not send the high-level signal when stopping working, and sends the low-level signal instead, so as to control the detection module to start working, and the power consumption of the acquisition identification module can be reduced better.
For the convenience of opening the collection and identification module by a user, as shown in fig. 1, in one embodiment, the fingerprint module further includes a seventh switch tube Q7, a control end of the seventh switch tube Q7 is used for being connected with a key, the first electric input end U1 is connected with a first end of the seventh switch tube Q7 through the first resistor R1, and a second end of the seventh switch tube Q7 is used for being grounded. When the key is pressed, a control signal is sent to the seventh switching tube Q7 to control the seventh switching tube Q7 to be conducted, when the seventh switching tube Q7 is conducted, the voltage of the first end of the first switching tube Q1 is equal to the voltage of the control end of the first switching tube Q1, so that the first power supply is conducted to be connected with the acquisition identification module, the acquisition identification module is started through the key operated by a user, and therefore the acquisition identification module can be started even if the detection module is not used, and the fingerprint module is worthy of higher reliability.
It should be understood that the keys may be either mechanical keys or touch keys. In one embodiment, the key is a mechanical key, and the power consumption of the mechanical key is lower than that of the touch key, so that the power consumption of the fingerprint module can be reduced. As shown in fig. 1, specifically, the key is connected to the control end of the seventh switching tube through a signal transmitter, the signal transmitter has a signal transmitting pin 310, the signal transmitter is connected to the first power supply through the signal transmitting pin 310, and the signal transmitter is configured to send a control signal to the control end of the seventh switching tube when the key is pressed.
In order to reduce the output power of the first power supply, as shown in fig. 1, in one embodiment, the fingerprint module further includes an eighth switching tube Q8, a first end of the first switching tube Q1 is connected to a first end of the eighth switching tube Q8, a second end of the eighth switching tube Q8 is connected to the acquisition identification module, and a control end of the eighth switching tube Q8 is connected to the second power supply U7. In this embodiment, the voltage of the second power supply is greater than the voltage of the first power supply, in this embodiment, the first power supply is a battery module, the second power supply is a charging power supply, in this embodiment, the second power supply charges the first power supply, when the second power supply is connected, the voltage of the control end of the eighth switching tube Q8 is greater than the voltage of the first end of the eighth switching tube Q8, so that the eighth switching tube Q8 is turned off, that is, the connection between the first end of the eighth switching tube Q8 and the second end of the eighth switching tube Q8 is disconnected, so that the connection between the first power supply and the acquisition identification module is disconnected, and the first power supply does not need to supply power to the acquisition identification module, so that the first power supply can be charged more quickly. In one embodiment, the second power supply is further connected to the collection and identification module, so that when the second power supply is connected, the collection and identification module is in a working state, so that the collection and identification module can be used for collecting fingerprints of a user, the fingerprint module can normally collect and identify the fingerprints when being charged, and the reliability of the fingerprint module is higher.
For making fingerprint module more portable, in one of them embodiment, fingerprint module still includes first power supply, first power supply is battery module, first electric input end with battery module connects to make fingerprint module accessible battery module power supply, when battery module has the electric quantity, can with the fingerprint module is taken to use in the scene that does not have charging source, makes fingerprint module more portable.
In one embodiment, the detection module is configured to detect a touch of a user, so as to send a control signal to the second switching tube, so that the connection between the first power supply and the acquisition identification module is conducted through a circuit, and the acquisition identification module is enabled to enter a working state.
In one embodiment, the detection module is disposed on one side of the collection and identification module, i.e., the detection module is disposed near the collection and identification module. Therefore, when the fingerprint of the finger of the user contacts the detection module and the acquisition and identification module, the center of the fingerprint contacts the acquisition and identification module, and the edge of the fingerprint can contact the detection module along with the center. Therefore, the acquisition and recognition module can be awakened when the detection module is touched, when the acquisition and recognition module is awakened, the fingerprint of the user is almost pressed on the acquisition and recognition module at the same time, so that the acquisition and recognition module can start to work and collect the fingerprint information of the user at the same time when the detection module is awakened, the power saving of the acquisition and recognition module is realized, and meanwhile, the difficulty of fingerprint recognition of the user is not increased.
In order to facilitate the acquisition of fingerprint information of a user when the detection module controls the operation of the acquisition and identification module, as shown in fig. 5, in one embodiment, the detection module includes a detection unit (not shown) and a detection ring 520, the acquisition and identification module includes a fingerprint acquisition unit 510 and a fingerprint identification unit (not shown), the first electrical output terminal U2 is connected with the fingerprint identification unit, the fingerprint identification unit is connected with the fingerprint acquisition unit 510, the detection unit is connected with a control terminal of the second switch tube (not shown), the detection ring 520 is connected with the detection unit, and the detection ring 520 is disposed around the outer side of the fingerprint acquisition unit 510.
In this embodiment, because detection module's detection ring sets up around fingerprint acquisition unit, like this, when the user needs to pass through fingerprint authentication unblock, touch the detection ring when touching fingerprint acquisition unit to trigger detection unit control second switch tube Q2 and switch on, and then pass through circuit control fingerprint acquisition unit circular telegram work, detect human fingerprint after the fingerprint acquisition unit circular telegram, like this, make the fingerprint acquisition unit can more save electricity under the condition that does not awaken up on the one hand, on the other hand, because the user can touch the detection ring conveniently, can make the awakening of fingerprint acquisition unit more convenient and swift.
In this embodiment, when the fingerprint of the user is pressed on the fingerprint acquisition unit, a part of the fingerprint of the user almost touches the detection module at the same time, so that the fingerprint acquisition unit is awakened by the circuit, and at this time, the fingerprint of the user is already pressed on the fingerprint acquisition unit, so that the fingerprint acquisition unit can immediately acquire the fingerprint information of the user after being awakened.
It is worth mentioning that the detection ring may also be referred to as a drive ring.
The fingerprint acquisition unit may also be referred to as a fingerprint sensor, and the fingerprint acquisition unit may be an optical fingerprint sensor, a semiconductor capacitance sensor, a semiconductor thermal sensor, a semiconductor pressure sensor, an ultrasonic sensor, a Radio Frequency (RF) sensor, or the like. In one embodiment, the fingerprint acquisition unit is a semiconductor capacitive sensor, the semiconductor capacitive sensor surface has a capacitive sensing array, and the detection is arranged around the capacitive sensing array.
In one embodiment, the detection ring and the fingerprint acquisition unit are both arranged on a circuit board, and the height of the detection ring protruding from the circuit board is smaller than the height of the fingerprint acquisition unit protruding from the circuit board. Thus, when the fingerprint of the user is pressed on the fingerprint acquisition unit, the fingerprint is continuously pressed, and part of the fingerprint touches the detection ring, so that the detection unit detects the touch of the human body to the detection ring.
In order to identify the fingerprint information of the user more quickly, as shown in fig. 5, in one embodiment, the detection ring 520 and the fingerprint acquisition unit 510 are both disposed on a circuit board 530, and the height of the detection ring 520 protruding from the circuit board 530 is greater than or equal to the height of the fingerprint acquisition unit 510 protruding from the circuit board 530, so that the fingerprint of the user can be pressed on the detection ring simultaneously or more quickly, and the detection unit can generate a wake-up signal according to the touch of the user on the detection ring more quickly, so that the fingerprint acquisition unit enters into a working state more quickly, and the fingerprint information of the user can be identified more quickly.
In one embodiment, the height of the detection ring protruding from the circuit board is equal to the height of the fingerprint acquisition unit protruding from the circuit board, so when the fingerprint of the user is pressed on the fingerprint acquisition unit, the fingerprint edge of the user can be pressed on the detection ring, and the fingerprint acquisition unit is awakened when the detection ring is touched, so that the fingerprint acquisition unit is awakened faster, and fingerprint information of the user is recognized faster.
In one embodiment, the detecting ring is raised above the circuit board and the fingerprint collecting unit is raised above the circuit board, so that the edge of the detecting ring is touched by the fingerprint edge of the user, the detecting unit wakes up the fingerprint collecting unit through the waking module according to the detected touch of the human body to the detecting ring, and when the fingerprint of the user further touches the fingerprint collecting unit, the fingerprint collecting unit is woken up in advance, so that the fingerprint collecting unit can enter the working state and recognize the fingerprint information of the user more quickly, and the fingerprint module power consumption can be reduced, and meanwhile, the fingerprint information recognition speed can be also higher.
As shown in fig. 1, in one embodiment, the signal output end 210 of the detecting unit is connected to the control end of the second switching tube Q2, the detecting end of the detecting unit is connected to the detecting ring, and the detecting ring has a current, when a human body touches the detecting ring, a change of the current on the detecting ring will be caused, so that the current on the detecting ring is changed, and the detecting end of the detecting unit can detect the change of the current on the detecting ring, so that a control signal is sent to the control end of the second switching tube Q2 through the signal output end of the detecting unit, so that the second switching tube Q2 is turned on. In this embodiment, the current of the human body is greater than the current of the detection ring, so that when the human body touches the detection ring, the current on the detection ring increases, and the increase of the current on the detection ring can be detected through the detection end of the detection unit, so as to generate a wake-up signal.
In one embodiment, the detection unit is of a model ASC8233D, so as to control on or off of the second switching tube Q2, and is used for detecting the current on the detection ring.
As shown in fig. 1 and 2, in one embodiment, the collection and identification module has a power input pin, a first signal output pin 110 and a second signal output pin 120, the first electrical output terminal U2 is connected to the power input terminal of the collection and identification module, and the first electrical output terminal U2 is used for enabling the electricity of the first power supply to be input to the power input terminal of the collection and identification module when the first switching tube Q1 is turned on. The first signal output pin 110 of the acquisition identification module is connected with the control end of the third switching tube Q3, and is used for controlling the on or off of the third switching tube Q3. The second signal output pin 120 of the acquisition identification module is connected with the control end of the sixth switching tube Q6, and is used for controlling the on or off of the sixth switching tube Q6.
In one embodiment, as shown in fig. 3, the fingerprint module further includes a driving module, and the first electrical output terminal U2 is connected to the acquisition and identification module through the driving module. In this embodiment, the driving module includes a driving chip 400. The model of the driving chip is LC6230, and the driving chip is used for supplying power to the acquisition and identification module so as to enable the acquisition and identification module to work.
In one embodiment, a fingerprint lock is further provided, including a fingerprint module as described in any of the above embodiments. The fingerprint module of the fingerprint lock has relatively low power consumption, so that the power consumption of the fingerprint lock can be saved, and it should be understood that the fingerprint lock for outdoor use is generally independently powered, so that the fingerprint module of the above embodiment is more required to be adopted, so that the power consumption of the fingerprint lock in unit time is reduced, and the fingerprint lock has longer single use time.
The fingerprint lock can be controlled through the fingerprint module, specifically, the fingerprint lock includes driving motor, bolt and drive circuit, driving motor with the bolt drive connection, as shown in fig. 4, drive circuit includes power end U5, ninth switching tube Q9, tenth switching tube Q10 and sixteenth resistance R16, power end U5 be used for with first power supply, power end U5 pass through sixteenth resistance R16 with the input of ninth switching tube Q9 is connected, the output of ninth switching tube Q9 is used for ground connection, gather identification module with the control end of ninth switching tube Q9 is connected, power end U5 with the input of tenth switching tube Q10 is connected, the output of tenth switching tube Q10 with driving motor connects, power end U5 still passes through sixteenth resistance R16 with the control end of tenth switching tube Q10 is connected. When the fingerprint of a specific user is acquired and identified by the acquisition and identification module, a control signal is sent to the ninth switching tube Q9, so that the ninth switching tube Q9 is conducted, after the ninth switching tube Q9 is conducted, the tenth switching tube Q10 is conducted, so that a first power supply supplies power to the driving motor, the driving motor drives the plug pin to move, and the fingerprint lock is unlocked. When the acquisition and identification module acquires and identifies unauthorized fingerprints, the ninth switching tube Q9 is turned off, so that the tenth switching tube Q10 is also turned off, the first power supply does not supply power to the driving motor, and the fingerprint lock is not unlocked. In this embodiment, the elastic component promotes the bolt card to the lock beam of fingerprint lock to make the lock beam fixed, driving motor is used for driving the bolt motion, realizes that the bolt overcomes the elasticity of elastic component and is separated from the lock beam, when the bolt is separated from the lock beam, then makes fingerprint lock unblock. When the driving motor is not electrified, the latch is in a locking state under the action of the elastic piece.
In this embodiment, the driving module is further connected to the driving circuit, and the driving module is configured to energize the driving motor through the driving circuit.
In one embodiment, an electronic device is further provided, including the fingerprint module set described in any one of the above embodiments, where the electronic device may be a fingerprint lock, a fingerprint punched card, a mobile phone, or other fingerprint devices using the fingerprint module set, and the fingerprint module set of the electronic device has relatively low power consumption, so that power consumption of the electronic device can be saved.
In one embodiment, an electronic device is provided, where the electronic device includes a first electrical input end, a first electrical output end, a first switching tube, a second switching tube, and a first resistor, where the first electrical input end is used to be connected with a first power supply, the first electrical input end is connected with a first end of the first switching tube, a second end of the first switching tube is connected with the first electrical output end, the first electrical input end is connected with a control end of the first switching tube through the first resistor, the first electrical input end is also connected with a first end of the second switching tube through the first resistor, a second end of the second switching tube is used to be grounded, a control end of the second switching tube is used to be connected with a detection component, and the first electrical output end is used to be connected with an electrical component. The detection component and the electricity utilization component of the electronic equipment work alternately, so that the electricity consumption of the electronic equipment is saved. In one embodiment, the detection component is a touch switch, and the electricity consumption component is an electricity consumption component with specific functions, such as a computer, a sound box, a display screen, a mobile phone and the like.
In order to achieve the on and off functions of the first switching tube, in one embodiment, the first switching tube is a field effect tube, in one embodiment, the first switching tube is a P-channel thin film transistor, so that when the voltage of a first end of the first switching tube is larger than that of a control end, the first end and the second end of the first switching tube are conducted, when the voltage of the first end of the first switching tube is equal to that of the control end, the first end and the second end of the first switching tube are disconnected, in this embodiment, the first end of the first switching tube is a source electrode, the second end of the first switching tube is a drain electrode, and the control end of the first switching tube is a grid electrode. In one embodiment, the type of the first switching tube is SI2305, so as to realize the on and off functions of the first switching tube.
In order to achieve the on and off functions of the fifth switching tube, in one embodiment, the fifth switching tube is a field effect tube, in one embodiment, the fifth switching tube is a P-channel thin film transistor, so that when the voltage of a first end of the fifth switching tube is greater than that of a control end, the first end and a second end of the fifth switching tube are conducted, when the voltage of the first end of the fifth switching tube is equal to that of the control end, the first end and the second end of the fifth switching tube are disconnected, in this embodiment, the first end of the fifth switching tube is a source electrode, the second end of the fifth switching tube is a drain electrode, and the control end of the fifth switching tube is a grid electrode. In one embodiment, the model of the fifth switching tube is SI2305, so as to implement the on and off functions of the fifth switching tube.
In one embodiment, the fifth switching tube is configured to be turned on when the voltage of the first end fifth switching tube is greater than the voltage of the control end of the fifth switching tube, and configured to be turned off when the voltage of the first end fifth switching tube is equal to the voltage of the control end of the fifth switching tube.
In order to achieve the on and off functions of the eighth switching tube, in one embodiment, the eighth switching tube is a field effect tube, in one embodiment, the eighth switching tube is a P-channel thin film transistor, so that when the voltage of the first end of the eighth switching tube is greater than the voltage of the control end, the first end and the second end of the eighth switching tube are conducted, and when the voltage of the first end of the eighth switching tube is equal to the voltage of the control end, the first end and the second end of the eighth switching tube are disconnected, in this embodiment, the first end of the eighth switching tube is a source electrode, the second end of the eighth switching tube is a drain electrode, and the control end of the eighth switching tube is a gate electrode. In one embodiment, the model of the eighth switching tube is SI2305, so as to implement the on and off functions of the eighth switching tube.
In one embodiment, the eighth switching tube is configured to be turned on when the voltage of the first end eighth switching tube is greater than the voltage of the control end of the eighth switching tube, and configured to be turned off when the voltage of the first end eighth switching tube is equal to the voltage of the control end of the eighth switching tube. It should be understood that the first switching tube may also be referred to as a first field effect tube, the fifth switching tube may also be referred to as a second field effect tube, and the eighth switching tube may also be referred to as a third field effect tube.
In one embodiment, the second switch tube, the third switch tube, the fourth switch tube, the sixth switch tube and the seventh switch tube are triodes, the triodes are used for realizing connection of a first end and a second end of the conduction triode when a control signal is input to a control end, and in particular, the triodes are used for realizing connection of a source electrode and a drain electrode of the conduction triode when a high level is input to a grid electrode. The transistor is further configured to disconnect the first terminal and the second terminal of the transistor when the control signal is input to the non-control terminal, and in particular, the transistor is configured to disconnect the source and the drain of the transistor when the low level is input to the gate. In one embodiment, the model of the triode is MMBT2222A, so that the on and off functions of the triode are realized.
In one embodiment, the third switching tube is used for being turned on when a control signal is input to a control end of the third switching tube. In one embodiment, the third switching tube is used for being turned on when a high-level signal is input to a control end of the third switching tube.
In one embodiment, the fourth switching tube is configured to be turned on when a control signal is input to a control terminal of the fourth switching tube. In one embodiment, the fourth switching tube is used for being turned on when a high-level signal is input to a control end of the fourth switching tube.
In one embodiment, the sixth switching tube is configured to be turned on when a control signal is input to a control terminal of the sixth switching tube. In one embodiment, the sixth switching tube is configured to be turned on when a high level signal is input to a control terminal of the sixth switching tube.
In one embodiment, the seventh switching tube is configured to be turned on when a control signal is input to a control terminal of the seventh switching tube. In one embodiment, the seventh switching tube is used for being turned on when a high-level signal is input to a control end of the seventh switching tube. It should be appreciated that the second switching transistor may also be referred to as a first transistor, the third switching transistor may also be referred to as a second transistor, the fourth switching transistor may also be referred to as a third transistor, the sixth switching transistor may also be referred to as a fourth transistor, and the seventh switching transistor may also be referred to as a fifth transistor.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (8)
1. The fingerprint module is characterized by comprising a first electric input end, a first electric output end, a first switch tube, a second switch tube, a first resistor, an acquisition identification module and a detection module, wherein the first electric input end is used for being connected with a first power supply, the first electric input end is connected with the first end of the first switch tube, the second end of the first switch tube is connected with the first electric output end, the first electric input end is connected with the control end of the first switch tube through the first resistor, the first electric input end is also connected with the first end of the second switch tube through the first resistor, the second end of the second switch tube is used for being grounded, the detection module is connected with the control end of the second switch tube, and the first electric output end is connected with the acquisition identification module;
The system comprises a detection module, a first switch tube, a second switch tube, a third switch tube, a fourth switch tube, a fifth switch tube, a second resistor, a third resistor and a fourth resistor, wherein the detection module is connected with the control end of the third switch tube, the second electric input end is connected with a first power supply source, the second electric input end is connected with the first end of the third switch tube through the second resistor, the second end of the third switch tube is connected with the ground, the second electric input end is connected with the control end of the fourth switch tube through the third resistor, the second electric input end is connected with the first end of the fourth switch tube, the second end of the fourth switch tube is connected with the ground through the fourth resistor, the second end of the fourth switch tube is connected with the control end of the fifth switch tube, the second electric input end is connected with the first end of the fifth switch tube, the second end of the fifth switch tube is connected with the second output end, and the detection module is connected with the second electric output end;
the battery module is characterized by further comprising a first power supply, wherein the first power supply is a battery module, and the first electric input end is connected with the battery module.
2. The fingerprint module of claim 1, further comprising a sixth switching tube, wherein the acquisition identification module is connected to a control terminal of the sixth switching tube, the first electrical input terminal is connected to a first terminal of the sixth switching tube through the first resistor, and a second terminal of the sixth switching tube is connected to ground.
3. The fingerprint module of claim 1, further comprising a seventh switching tube, wherein a control end of the seventh switching tube is configured to be connected to a key, the first electrical input end is connected to a first end of the seventh switching tube through the first resistor, and a second end of the seventh switching tube is configured to be grounded.
4. The fingerprint module of claim 1, further comprising an eighth switching tube, wherein a first end of the first switching tube is connected to a first end of the eighth switching tube, a second end of the eighth switching tube is connected to the acquisition identification module, and a control end of the eighth switching tube is configured to be connected to a second power supply.
5. The fingerprint module of any one of claims 1-4, wherein the detection module comprises a detection unit and a detection ring, the acquisition and identification module comprises a fingerprint acquisition unit and a fingerprint identification unit, the first electrical output end is connected with the fingerprint identification unit, the fingerprint identification unit is connected with the fingerprint acquisition unit, the detection unit is connected with the control end of the second switching tube, the detection ring is connected with the detection unit, and the detection ring is arranged around the outer side of the fingerprint acquisition unit.
6. The fingerprint module of claim 5, wherein the detection ring and the fingerprint acquisition unit are both disposed on a circuit board, and the height of the detection ring protruding from the circuit board is greater than or equal to the height of the fingerprint acquisition unit protruding from the circuit board.
7. A fingerprint lock comprising a fingerprint module as claimed in any one of claims 1 to 6.
8. An electronic device comprising a fingerprint module as claimed in any one of claims 1 to 6.
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| CN111429616A (en) * | 2020-02-20 | 2020-07-17 | 珠海格力电器股份有限公司 | Intelligent door lock control method and device, electronic equipment and readable storage medium |
| CN113356692B (en) * | 2020-03-02 | 2022-07-05 | 深圳市凌度汽车电子有限公司 | Intelligent door lock and control method |
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