CN217061038U - Power supply circuit system and face recognition equipment - Google Patents
Power supply circuit system and face recognition equipment Download PDFInfo
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- CN217061038U CN217061038U CN202220393967.0U CN202220393967U CN217061038U CN 217061038 U CN217061038 U CN 217061038U CN 202220393967 U CN202220393967 U CN 202220393967U CN 217061038 U CN217061038 U CN 217061038U
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Abstract
The disclosure relates to the technical field of face recognition, and particularly provides a power supply circuit system and face recognition equipment. A power supply circuit system is applied to a face recognition device and comprises: the input end of the constant-power supply circuit is suitable for being connected with an external power supply, and the output end of the constant-power supply circuit is connected with the power supply control chip and used for supplying power to the power supply control chip; the input end of the controllable power supply circuit is connected with the output end of the constant-power supply circuit, the output end of the controllable power supply circuit is connected with the master control system of the face recognition device, and the control end of the controllable power supply circuit is in communication connection with the power supply control chip; the power supply control chip is used for controlling the on-off of the controllable power supply circuit according to the response signal. In the embodiment of the disclosure, the energy consumption of the face recognition equipment is reduced, the electric energy resource is saved, and the service life of the face recognition equipment is prolonged.
Description
Technical Field
The disclosure relates to the technical field of face recognition, in particular to a power supply circuit system and face recognition equipment.
Background
With the development of the Computer Vision (CV) field, the face recognition technology has been widely applied to various life scenes, such as entrance guard card punching, identity verification, target tracking, and the like. In the related art, unnecessary power consumption occurs in the face recognition device in part of scenes, which wastes energy and reduces the service life of each electronic device in the device.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem of energy waste of the face recognition device, the embodiment of the disclosure provides a power supply circuit system and a face recognition device with the same.
In a first aspect, an embodiment of the present disclosure provides a power supply circuit system, which is applied to a face recognition device, where the power supply circuit system includes:
the input end of the constant-power supply circuit is suitable for being connected with an external power supply, and the output end of the constant-power supply circuit is connected with the power supply control chip and used for supplying power to the power supply control chip; and
the input end of the controllable power supply circuit is connected with the output end of the constant-power supply circuit, the output end of the controllable power supply circuit is connected with a master control system of the face recognition device, and the control end of the controllable power supply circuit is in communication connection with the power supply control chip; the power supply control chip is used for controlling the on-off of the controllable power supply circuit according to the response signal.
In some embodiments, the power supply circuit system further includes:
the detection device is connected with the output end of the constant-power supply circuit and is powered by the constant-power supply circuit, and the detection device is in communication connection with the power supply control chip, and the power supply control chip is used for controlling the on-off of the controllable power supply circuit according to a detection signal of the detection device.
In some embodiments, the detection device includes an infrared distance sensor, and the power supply control chip is configured to determine a distance between a detected object and the infrared distance sensor according to a detection signal of the infrared distance sensor, and control on/off of the controllable power supply circuit according to the distance.
In some embodiments, the power supply control chip includes a timer circuit, and the power supply control chip controls on/off of the controllable power supply circuit based on a current time of the timer circuit and a preset target time period.
In some embodiments, the normally-powered power supply circuit includes a DC-DC power supply circuit.
In some embodiments, the controllable supply circuit comprises a switching power supply circuit.
In a second aspect, an embodiment of the present disclosure provides a face recognition device, including:
the power supply circuitry according to any one of the embodiments of the first aspect; and
the master control system comprises a master control chip, and the master control chip is in communication connection with the power supply control chip.
In some embodiments, the main control system further includes an image capturing device communicably connected to the main control chip, and the image capturing device is configured to capture a face image of a target object.
In some embodiments, the image acquisition device comprises a binocular camera.
In some embodiments, the master control system includes a display screen communicably coupled to the master control chip.
In some embodiments, the master control system includes an input device communicatively coupled to the power control chip, the input device configured to receive input information input by a user, the power control chip determining the target time period based on the input information.
The power supply circuit system of the embodiment is applied to face recognition equipment and comprises a normal-electricity power supply circuit and a controllable power supply circuit, the input end of the normal-electricity power supply circuit is suitable for being connected with an external power supply, the output end of the normal-electricity power supply circuit is connected with a power supply control chip, the normal-electricity power supply circuit is used for supplying power to the power supply control chip, the input end of the controllable power supply circuit is connected with the output end of the normal-electricity power supply circuit, the output end of the controllable power supply circuit is connected with a main control system of the face recognition equipment, the control end of the controllable power supply circuit is in communication connection with the power supply control chip, and the power supply control chip is used for controlling the on-off of the controllable power supply circuit according to a response signal. In the embodiment of the disclosure, the power supply control chip controls the on-off of the controllable power supply circuit, so that the master control system of the face recognition device is in a closed state, thereby reducing the energy consumption of the device and saving the electric energy resource. In addition, the master control system works intermittently, so that the service life of the face recognition equipment is prolonged.
Drawings
In order to more clearly illustrate the detailed description of the present disclosure or the technical solutions in the prior art, the drawings used in the detailed description or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a block diagram of power supply circuitry in some embodiments according to the present disclosure.
Fig. 2 is a block diagram of power supply circuitry in some embodiments according to the present disclosure.
Fig. 3 is a schematic structural diagram of a face recognition device according to some embodiments of the present disclosure.
Detailed Description
The technical solutions of the present disclosure will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments of the present disclosure, but not all embodiments. All other embodiments, which can be derived by one of ordinary skill in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure. In addition, technical features involved in different embodiments of the present disclosure described below may be combined with each other as long as they do not conflict with each other.
Currently, in the field of Computer Vision (CV), a face recognition technology has been widely applied to various life scenes. Taking an entrance guard or a card punching scene as an example, a face recognition device is often arranged at a fixed position, and the face recognition device acquires a face image and compares and recognizes the face image based on a face recognition algorithm to realize user identity verification.
The face recognition algorithm consumes hardware resources very much, and the power consumption of the whole machine is very large after the algorithm is operated, and can reach 8W-10W generally. In the related art, the face recognition device is powered by an external power supply, and in most scenes, the face recognition device is powered all the day, so that electric appliances inside the face recognition device are powered on continuously for 24 hours and are in a working state. However, taking a company access control scene as an example, the face recognition device usually only works in the working hours, and after working at night, the face recognition device usually does not need to work, and energy waste is caused by continuous power-on of electric appliances.
In the related art, a standby mode is generally set for a face recognition device, for example, when the device is not used by a person for a long time, the device turns off a display screen backlight and other electrical devices consuming more power, such as a camera, a fingerprint sensor, an indicator light and the like of a main control system, and other electrical devices of the whole system are still in a power-on state, so that electric energy is continuously consumed, energy waste is caused, and the service life of the devices is reduced by continuously powering on the device.
Based on the defects in the related art, the embodiment of the disclosure provides a power supply circuit system and a face recognition device with the same, and aims to reduce the energy consumption of the whole face recognition device, realize energy conservation and environmental protection, and prolong the service life of the face recognition device.
In a first aspect, the disclosed embodiments provide a power supply circuit system, which can be applied to a face recognition device.
The face recognition device according to the embodiment of the present disclosure may be any device type suitable for implementing a face recognition related function, such as an access control system, a card punch, a monitoring camera, and the like, which is not limited by the present disclosure.
The power supply circuit system of the embodiment of the disclosure is used for realizing power supply management of the face recognition device. In the embodiment of the present disclosure, the power supply of the power supply circuit system includes a constant power and a controllable power. The normal electricity is power supply which is not controlled by the control circuit, namely the normal electricity can continuously supply power to the electric appliance under the condition that an external power supply is not disconnected. The controllable electricity means electricity supplied by controlling on/off of a power supply control chip, and even if an external power supply is not turned off, the electricity supplied to an electric device can be turned off by controlling on/off of a circuit.
In some embodiments, the power supply circuit system of the present disclosure may be integrated on a motherboard of a face recognition device.
As shown in fig. 1, in some embodiments, the power supply circuitry of examples of the present disclosure includes a constant power supply circuit 100, a power supply control chip 200, a controllable power supply circuit 300, and a master control system 400.
The input of the constant power supply circuit 100 is adapted to be connected to an external power source, for example, in one example, the input of the constant power supply circuit 100 may be configured as a power plug, and the power plug is connected to a power socket to communicate with the external power source. The output end of the constant power supply circuit 100 is connected with the power supply control chip 200, so as to supply power to the power supply control chip 200.
The power supply control chip 200 is a controller of the power supply circuit system, and is used for implementing power supply control management of each power consumption device in the device. In the embodiment of the present disclosure, the power supply control chip 200 may be any type of processing chip having one or more processing cores, and may perform single-thread or multi-thread operations for analyzing instructions to perform operations such as obtaining data, performing a logical operation function, and issuing an operation processing result.
In some embodiments, the Power supply control Chip 200 may be an MCU (micro controller Unit) Chip, a PMIC (Power Management Integrated Circuits), a CPU (central processing Unit) Chip, an SoC (System on Chip), or the like, which is not limited by the present disclosure.
The power input pin of the power supply control chip 200 is connected to the output terminal of the normally-powered power supply circuit 100, so that the normally-powered power supply circuit 100 can provide the power supply control chip 200 with the normal power, that is, the power supply control chip 200 is continuously in the power-on state.
The input end of the controllable power supply circuit 300 is connected to the output end of the constant power supply circuit 100, the output end thereof is connected to the main control system 400 of the face recognition device, and the control end thereof is communicably connected to the power supply control chip 200. For ease of understanding, solid lines in fig. 1 represent power supply links and dashed lines represent communication links.
It is understood that the controllable power supply circuit 300 is disposed on the power supply link between the constant power supply circuit 100 and the master control system 400, and the control end thereof is enabled and controlled by the power supply control chip 200. Therefore, when the power supply control chip 200 controls the controllable power supply circuit 300 to be turned on, the main control system 400 connected to the output terminal of the controllable power supply circuit 300 can be powered on to operate. When the power supply control chip 200 controls the controllable power supply circuit 300 to be disconnected, the main control system 400 connected to the output terminal of the controllable power supply circuit 300 loses power and does not work.
In some embodiments, the host system 400 refers to a control module for implementing functions related to the face recognition device, and may include electrical devices such as a host chip, an image capturing device, various types of sensors, and the like. When the power supply control chip 200 controls the controllable power supply circuit 300 to be conducted, the main control system 400 can be powered on to work, and the face recognition function is achieved. When the power supply control chip 200 controls the controllable power supply circuit 300 to be disconnected, the master control system 400 is in a power-off state.
In the embodiment of the present disclosure, each device in the device is respectively powered by the normal power supply circuit 100 and the controllable power supply circuit 300, that is, the device such as the power supply control chip 200 that cannot sleep is powered normally, and other devices such as the main control system 400 that can sleep are powered controllably, so that when the face recognition device is in standby, the main control system 400 is powered off, and waste of power resources is avoided.
For example, in an example, the face recognition device is an access control system of a company, and considering that the access control system is not required to work at night, the power supply control chip 200 may control the controllable power supply circuit 300 to be turned off at night, so as to shut down a main control system of the access control system, for example, the image capture device, the fingerprint sensing device, the wireless communication device, and the like are turned off to supply power, and only the power supply control chip 200 and other necessary devices are kept to be powered on for standby.
Therefore, in the embodiment of the disclosure, the power supply control chip controls the on/off of the controllable power supply circuit, so that the master control system of the face recognition device is in a closed state, thereby reducing the energy consumption of the device and saving the electric energy resource. In addition, the master control system works intermittently, so that the service life of the face recognition device is prolonged.
In an exemplary scenario, the face recognition device takes a company access control system as an example, and the power supply circuit system of the embodiment of the present disclosure may control the main control system 400 to be in a shutdown state at night through the power supply control chip 200, so that the access control system does not work any more. In order to ensure that the night access control system can still be used normally, in some embodiments, the power supply circuit system is further provided with a detection device, so that the main control system is awakened through a detection signal of the detection device, which is described below with reference to the embodiment of fig. 2.
As shown in fig. 2, in some embodiments, the power supply circuit system of the example of the present disclosure further includes a detection device 500, and a power supply pin of the detection device 500 is connected to an output terminal of the normally-powered power supply circuit 100 through the power supply control chip 200, that is, the detection device 500 is also powered by the normally-powered power supply circuit 100 to be in a continuously powered-up state. Meanwhile, the detecting device 500 is communicably connected to the power supply control chip 200, so that the power supply control chip 200 can control the on/off of the controllable power supply circuit 300 according to the detecting signal of the detecting device 500.
In the embodiment of the present disclosure, the detecting device 500 is used to monitor an external detection signal when the main control system 400 is powered off, so that the power supply control chip 200 can control the controllable power supply circuit 300 to be turned on according to the detection signal, and the main control system 400 is powered on to work.
In some embodiments, the detection device 500 includes an infrared distance sensor disposed in the face recognition device, and the infrared distance sensor can sense the distance between the detected object and the sensor. For example, when a human body approaches the infrared distance sensor, the infrared distance sensor may obtain a detection signal indicating a distance between the human body according to a change of the received light. The power supply control chip 200 determines the distance between the detected object and the infrared distance sensor according to the detection signal, and when the distance of the detected object is smaller than a preset threshold, it indicates that the detected object may need to use a face recognition device, so that the power supply control chip 200 can control the controllable power supply circuit 300 to be turned on, so that the main control system 400 is powered on to realize face recognition.
In the above embodiment, the detection device 500 is exemplified by an infrared distance sensor, but it is understood that the detection device of the embodiment of the present disclosure is not limited thereto, and may be any other suitable component, such as a capacitance sensor, a ToF (Time of Flight) sensor, and the like, and the present disclosure is not limited thereto.
It can be understood that, in the embodiment of the present disclosure, the power supply control chip 200 and the detection device 500 are powered by normal power, so that the power supply control chip 200 and the detection device 500 are powered on continuously. The main control system 400 is powered by the controllable electricity, so that the main control system 400 can be powered off within a preset time period, the power consumption is saved, and the service life is prolonged. Meanwhile, the main control system 400 can be awakened at any time through the detection device 500, and the use stability of the face recognition device is ensured.
In some embodiments, the power control chip 200 includes a timer circuit for timing such that the current time can be determined by the timer circuit. The user may preset a time period, i.e., a target time period, in which the main control system 400 needs to be powered off, so that the controllable power supply circuit 300 may be controlled to be turned on and the main control system 400 may be powered on to operate when the current time is not within the target time period. When the current time is within the target time period, the controllable power supply circuit 300 can be controlled to be turned off, and the main control system 400 is powered off. The present disclosure will be explained in the following embodiments, and will not be described in detail here.
In some embodiments, the constant power supply circuit 100 may include a DC-DC power supply circuit, and the controllable power supply circuit 300 may include a switching power supply circuit, such as a MOS (Metal-Oxide-Semiconductor Field-Effect Transistor) switching circuit. Of course, the specific circuit hardware of the constant power supply circuit 100 and the controllable power supply circuit 300 is not limited thereto, and may be any other suitable circuit hardware, and the disclosure is not limited thereto.
Therefore, in the embodiment of the disclosure, the power supply control chip controls the on/off of the controllable power supply circuit, so that the main control system of the face recognition device is in a closed state, thereby reducing the energy consumption of the device and saving the electric energy resource. In addition, the master control system works intermittently, so that the service life of the face recognition equipment is prolonged. Meanwhile, the main control system can be awakened at any time through the detection device, and the use stability of the face recognition device is guaranteed.
In a second aspect, the disclosed embodiments provide a face recognition device, which may be any device type suitable for implementing a face recognition related function, such as an access control system, a card punch, a monitoring camera, and the like, but the disclosure is not limited thereto.
As shown in fig. 3, in some embodiments, the face recognition device in the examples of the present disclosure is an access control device. In this example, entrance guard's equipment can fixed mounting near the door body to carry out face identification through the face image of gathering, can open the door body promptly when face identification passes through, otherwise, when face identification does not pass through, then keep the door body to close. For the face recognition algorithm and the related processing procedure, those skilled in the art can understand and fully implement the face recognition algorithm with reference to the related technology, and the details of the disclosure are not repeated.
In the embodiment of the present disclosure, the face recognition device includes a housing 610 and a main board (not shown in the drawings) disposed inside the housing 610, where the main board is used for integrating various circuit modules, for example, the power supply circuit system shown in fig. 2 may be integrated on the main board.
The main control system 400 includes a main control chip, which is a main processor of the face recognition device and is used to implement related functions and data processing of the face recognition device. In the embodiment of the present disclosure, the main control chip may be any type of processing chip having one or more processing cores, and may perform operations of single thread or multithreading, so as to analyze an instruction to perform operations such as acquiring data, executing a logical operation function, and issuing an operation processing result.
In some embodiments, the main control Chip may be an MCU (micro controller Unit) Chip, a CPU (central processing Unit) Chip, an SoC (System on Chip), and the like, which is not limited in this disclosure.
With continued reference to fig. 3, in this embodiment, the main control system 400 further includes an image capturing device 410, and the image capturing device 410 is configured to capture a human face image. The image acquisition device 410 is in communication connection with the main control chip, so that the face image acquired by the image acquisition device 410 is sent to the main control chip, and the main control chip can compare and identify the target object in the face image according to a face identification algorithm.
In some embodiments, the image capturing device 410 may include a camera assembly, which may be a monocular camera, or may be a binocular or a multi-view camera, which is not limited by the present disclosure. When the image capturing device 410 includes a multi-view camera, the multi-view camera may include one or a combination of RGB cameras, black and white cameras, and infrared cameras.
As shown in fig. 3, in this embodiment, the main control system 400 further includes a display screen 420, and the display screen 420 is communicatively connected to the main control chip, so that images such as time, face images, and interactive interfaces can be output and displayed according to the image signals sent by the main control chip.
In some embodiments, the host system 400 further includes an input device 430, and the input device 430 may be any structure suitable for human-computer interaction, such as a physical keyboard, a virtual keyboard, a touch panel, and the like, which is not limited by the present disclosure. For example, in the example of fig. 3, the input device 430 is a physical key pad. The input device 430 may be communicatively connected to the main control chip, so that the main control chip receives input information input by a user through the input device 430.
Based on the foregoing, in the embodiment of the present disclosure, it is desirable that the power supply control chip 200 controls the controllable power supply circuit 300 to be turned off during a period when the face recognition device does not need to work, so as to shut down the main control system 400. Therefore, in some embodiments, the user may set the operation time of the face recognition device through the input device 430, so that the power supply control chip 200 disconnects the power supply of the main control system 400 during the non-operation time.
Specifically, the user can manually input the working time period of the face recognition device by using the input device 430 in the device configuration mode, for example, the working time period is set as 06: 00-24: 00 is set as a working time period, so that the non-working time period, namely the target time period, is between 00:00 and 06: 00.
In some embodiments, after receiving the input information input by the user, the main control chip may determine the target time period according to the input information, and send the target time period to the power supply control chip 200, and the power supply control chip 200 buffers the target time period in its own memory.
Of course, it is understood that the above processing procedure for determining the target time period may also be executed by the power supply control chip 200, that is, the main control chip forwards the received input information to the power supply control chip 200, and the power supply control chip 200 may determine the target time period according to the input information and cache the target time period in its own memory. It will be understood by those skilled in the art that the present disclosure is not described in detail.
Meanwhile, the power supply control chip 200 includes a timer circuit for timing so that the current time can be determined by the timer circuit. When the current time is not within the target time period, the controllable power supply circuit 300 may be controlled to be turned on, so that the main control system 400 is powered on to operate. When the current time is within the target time period, the controllable power supply circuit 300 may be controlled to be turned off, so that the main control system 400 is powered off.
In the example of fig. 3, the detection device 500 is disposed on the housing 610, so that when the main control system 400 is in a power-off state, the detection device 500 is kept in a continuous working state by a constant power supply, and when it is detected that the distance between the target objects is smaller than the preset distance, the main control system 600 can be woken up to be powered on to work. Those skilled in the art can understand and fully implement the embodiments described above, and the detailed description of the disclosure is omitted.
In some embodiments, as shown in fig. 3, in the face recognition device according to the embodiments of the present disclosure, the main control system further includes a fingerprint identification module 440, and the fingerprint identification module 440 is in communication connection with the main control chip, so that the main control chip can perform identity verification on a user according to fingerprint information collected by the fingerprint identification module 440. As to the specific working principle of the fingerprint recognition module 440, it can be understood and fully implemented by those skilled in the art based on the related art, and the present disclosure is not limited thereto.
The following describes the operation principle of the power supply circuit system and the face recognition device according to the embodiment of the present disclosure with reference to a specific example.
As shown in fig. 2 and fig. 3, the administrator may first set the working time of the face recognition device, specifically, the administrator may verify the identity through face recognition or fingerprint recognition, and enter the configuration mode after the identity verification is passed. In the configuration mode, the administrator can manually input the working time period through the input device 430, for example, the ratio of 06: 00-24: 00 is set as the on period. The main control chip receives the input information, determines that the target time period of the shutdown of the main control system is between 00:00 and 06:00 according to the input information, then sends the target time period to the power supply control chip 200, and the power supply control chip 200 stores the target time period in a memory thereof to complete configuration.
In the using process of the device, the power supply control chip 200 acquires the current time in real time according to the timer circuit, and when the current time is not between 00:00 and 06:00, the controllable power supply circuit 300 can be controlled to be conducted, so that the main control system 400 is powered on to work. When the current time is 00: 00-06: 00, the controllable power supply circuit 300 can be controlled to be disconnected, so that the master control system 400 is powered off.
In the power-off and power-off process of the main control system 400, when the detection device 500 detects that a human body approaches and the distance is smaller than the preset distance threshold, the power supply control chip 200 can control the controllable power supply circuit 300 to be switched on according to the detection signal of the detection device 500, so that the main control system 400 is powered on to work.
Therefore, in the embodiment of the disclosure, the power supply control chip controls the on/off of the controllable power supply circuit, so that the master control system of the face recognition device is in a closed state, thereby reducing the energy consumption of the device and saving the electric energy resource. In addition, the master control system works intermittently, so that the service life of the face recognition equipment is prolonged. Meanwhile, the main control system can be awakened at any time through the detection device, and the use stability of the face recognition device is guaranteed.
It should be understood that the above embodiments are only examples for clarity of description, and are not limiting. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications derived therefrom are intended to be within the scope of the invention.
Claims (10)
1. A power supply circuit system, applied to a face recognition apparatus, the power supply circuit system comprising:
the input end of the constant-power supply circuit is suitable for being connected with an external power supply, and the output end of the constant-power supply circuit is connected with the power supply control chip and used for supplying power to the power supply control chip; and
the input end of the controllable power supply circuit is connected with the output end of the constant-power supply circuit, the output end of the controllable power supply circuit is connected with a master control system of the face recognition device, and the control end of the controllable power supply circuit is in communication connection with the power supply control chip; the power supply control chip is used for controlling the on-off of the controllable power supply circuit according to the response signal.
2. The power supply circuit system according to claim 1, further comprising:
the detection device is connected with the output end of the constant-power supply circuit and is powered by the constant-power supply circuit, and the detection device is in communication connection with the power supply control chip, and the power supply control chip is used for controlling the on-off of the controllable power supply circuit according to a detection signal of the detection device.
3. Supply circuitry according to claim 2,
the detection device comprises an infrared distance sensor, and the power supply control chip is used for determining the distance between a detected object and the infrared distance sensor according to a detection signal of the infrared distance sensor and controlling the on-off of the controllable power supply circuit according to the distance.
4. The power supply circuit system according to claim 1,
the power supply control chip comprises a timer circuit, and the power supply control chip controls the on-off of the controllable power supply circuit based on the current time of the timer circuit and a preset target time period.
5. The power supply circuit system according to claim 1,
the constant-power supply circuit comprises a DC-DC power supply circuit; and/or the presence of a gas in the atmosphere,
the controllable supply circuit comprises a switching power supply circuit.
6. A face recognition apparatus, comprising:
the power supply circuit system of any one of claims 1 to 5; and
the master control system comprises a master control chip, and the master control chip is in communication connection with the power supply control chip.
7. The face recognition device of claim 6,
the main control system further comprises an image acquisition device, the image acquisition device is in communication connection with the main control chip and is used for acquiring a face image of the target object.
8. The face recognition device of claim 7,
the image acquisition device comprises a binocular camera.
9. The face recognition device of claim 6,
the master control system comprises a display screen, and the display screen is in communication connection with the master control chip.
10. The face recognition device of claim 6,
the master control system comprises an input device, the input device is in communication connection with the power supply control chip, the input device is used for receiving input information input by a user, and the power supply control chip determines a target time period according to the input information.
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| CN202220393967.0U CN217061038U (en) | 2022-02-25 | 2022-02-25 | Power supply circuit system and face recognition equipment |
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| CN202220393967.0U CN217061038U (en) | 2022-02-25 | 2022-02-25 | Power supply circuit system and face recognition equipment |
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| CN217061038U true CN217061038U (en) | 2022-07-26 |
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