CN108512625B - Anti-interference method for camera, mobile terminal and storage medium - Google Patents

Anti-interference method for camera, mobile terminal and storage medium Download PDF

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Publication number
CN108512625B
CN108512625B CN201810263091.6A CN201810263091A CN108512625B CN 108512625 B CN108512625 B CN 108512625B CN 201810263091 A CN201810263091 A CN 201810263091A CN 108512625 B CN108512625 B CN 108512625B
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Prior art keywords
frequency
mclk
camera
communication
communication data
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CN108512625A (en
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王璟
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Nubia Technology Co Ltd
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Nubia Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/40—Jamming having variable characteristics
    • H04K3/42—Jamming having variable characteristics characterized by the control of the jamming frequency or wavelength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K2203/00—Jamming of communication; Countermeasures
    • H04K2203/10—Jamming or countermeasure used for a particular application
    • H04K2203/14—Jamming or countermeasure used for a particular application for the transfer of light or images, e.g. for video-surveillance, for television or from a computer screen
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

The invention discloses an anti-interference method of a camera, which comprises the following steps: when the starting of the camera is detected, acquiring the first main system clock MCLK frequency and first communication data of the camera; determining whether the first MCLK frequency falls within the first communication data; if yes, the first MCLK frequency is adjusted to a second MCLK frequency. In addition, the invention also discloses a mobile terminal and a storage medium, and by adopting the technical scheme of the invention, the influence of the camera MCLK on real-time communication can be reduced to the greatest extent.

Description

Anti-interference method for camera, mobile terminal and storage medium
Technical Field
The present invention relates to the field of communications technologies, and in particular, to an anti-interference method for a camera, a mobile terminal, and a storage medium.
Background
The current smart phone camera has become the most basic standard in daily life of people, and along with the popularization of Wi-Fi of a wireless network, the application scene of video communication is more and more common. In the Wi-Fi connection state, if the camera function is started, the interference signal caused by the camera is often caused by that the frequency of the main system Clock (MCLK) of the camera is divided or multiplied by the frequency of the receiving channel of the Wi-Fi antenna in the camera, so that the receiving sensitivity of the Wi-Fi antenna is poor, and the interference signal is caused to influence the video call quality of the user. And Wi-Fi and global positioning system (Global Positioning System, GPS) are usually the same antenna, when GPS positioning function and camera function are opened simultaneously, the GPS antenna can also be influenced by the double frequency interference of MCLK clock frequency brought by the camera, thereby influencing the positioning time and precision of the user and reducing the user experience.
At present, the processing mode of the mobile terminal for the interference of the camera to Wi-Fi and GPS is to debug the MCLK frequency, verify whether the affected Wi-Fi frequency band is improved before, verify whether the interference is caused to other Wi-Fi channels and GPS, namely, change the clock frequency of the camera to verify all Wi-Fi channels and GPS until no additional influence is generated to bring new interference signals, namely, the clock frequency is adopted. However, it is necessary to verify whether all Wi-Fi bands and GPS are affected or not every time the clock frequency is changed, which is inefficient.
Disclosure of Invention
The invention mainly aims to provide an anti-interference method for a camera, and aims to solve the problem that the existing anti-interference mode is low in efficiency.
In order to achieve the above object, the present invention provides an anti-interference method for a camera, the method comprising the steps of:
when the starting of the camera is detected, acquiring the first main system clock MCLK frequency and first communication data of the camera;
determining whether the first MCLK frequency falls within the first communication data;
if yes, the first MCLK frequency is adjusted to a second MCLK frequency.
Optionally, when the acquired communication data is a communication band of a wireless network, after adjusting the first MCLK frequency to a second MCLK frequency, the method further includes:
If the second MCLK frequency falls within the first communication data, determining whether all of the predetermined clock frequencies are compared;
if yes, changing the wireless network channel.
Optionally, changing a communication band before a current channel of the wireless network to a first communication band, and the changed communication band to a second communication band, the method further includes:
acquiring the second communication frequency band;
judging whether all MCLK frequencies fall into the second communication frequency band;
if yes, the wireless network channel is changed again.
Optionally, when the obtained communication data is a receiving frequency band of a global positioning system GPS, adjusting a current MCLK frequency to a frequency value having a maximum interval with the receiving frequency band of the GPS.
Optionally, when the obtained communication data is a communication frequency band of a wireless network and a reception frequency band of a GPS, the adjusting the first MCLK frequency to be the second MCLK frequency includes:
judging whether MCLK frequency which does not affect the GPS reception exists;
if yes, adjusting the first MCLK frequency to a MCLK frequency which does not affect the GPS reception;
if not, adjusting the first MCLK frequency to the MCLK frequency having the largest receiving frequency band interval from the GPS.
Optionally, the MCLK frequency that does not affect the GPS reception is a third MCLK frequency, and after adjusting the first MCLK frequency to the MCLK frequency that does not affect the GPS reception, the method further includes:
judging whether all preset clock frequencies are compared or not;
if yes, changing the wireless network channel, wherein the current communication frequency band of the wireless network is a third communication frequency band;
acquiring the third communication frequency band;
judging whether the third MCLK frequency falls within the third communication band;
if so, changing the wireless network channel to the channel with the largest frequency interval with the third MCLK.
Optionally, the determining whether the first MCLK frequency falls within the first communication data includes:
judging whether the first MCLK frequency falls into the receiving frequency band of the GPS;
if not, judging whether the first MCLK frequency falls into the communication frequency band of the wireless network.
Optionally, when the first MCLK frequency is determined not to fall within the communication data, setting the MCLK frequency to be the first MCLK frequency for normal operation.
In addition, in order to achieve the above object, the present invention also proposes a mobile terminal including a processor and a memory;
The processor is used for executing the anti-interference program of the camera stored in the memory so as to realize the method.
In addition, to achieve the above object, the present invention also proposes a computer-readable storage medium storing one or more programs executable by one or more processors to implement the above method.
According to the anti-interference method for the camera, the mobile terminal and the storage medium, when the camera is detected to be opened, the clock frequency and communication data of the MCLK of the camera are read in real time. And calculating whether a frequency multiplication point of the clock frequency falls in the first communication data according to a frequency calculation formula based on MCLK in the chip provided by a camera manufacturer. If not, the camera continues to operate at the clock frequency. If yes, the next clock frequency is selected, and whether the clock frequency falls into the communication data is continuously judged until all the clock frequencies are judged, so that the influence of the camera MCLK on real-time communication is reduced to the greatest extent.
Drawings
FIG. 1 is a schematic diagram of an alternative mobile terminal hardware architecture for implementing various embodiments of the present invention;
FIG. 2 is a schematic diagram of a communication network system of the mobile terminal shown in FIG. 1;
fig. 3 is a flowchart of an anti-interference method of a camera according to a first embodiment of the present invention;
fig. 4 is a flowchart of an anti-interference method of a camera according to a second embodiment of the present invention;
fig. 5 is a schematic sub-flowchart of an anti-interference method of a camera according to a second embodiment of the present invention;
fig. 6 is a flowchart of an anti-interference method of a camera according to a third embodiment of the present invention;
fig. 7 is a flowchart of an anti-interference method of a camera according to a fourth embodiment of the present invention;
fig. 8 is another flow chart of an anti-interference method of a camera according to a fourth embodiment of the present invention.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
In the following description, suffixes such as "module", "component", or "unit" for representing elements are used only for facilitating the description of the present invention, and have no specific meaning per se. Thus, "module," "component," or "unit" may be used in combination.
The terminal may be implemented in various forms. For example, the terminals described in the present invention may include mobile terminals such as cell phones, tablet computers, notebook computers, palm computers, personal digital assistants (Personal Digital Assistant, PDA), portable media players (Portable Media Player, PMP), navigation devices, wearable devices, smart bracelets, pedometers, and fixed terminals such as digital TVs, desktop computers, and the like.
The following description will be given taking a mobile terminal as an example, and those skilled in the art will understand that the configuration according to the embodiment of the present invention can be applied to a fixed type terminal in addition to elements particularly used for a moving purpose.
Referring to fig. 1, which is a schematic diagram of a hardware structure of a mobile terminal implementing various embodiments of the present invention, the mobile terminal 100 may include: an RF (Radio Frequency) unit 101, a WiFi module 102, an audio output unit 103, an a/V (audio/video) input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, a processor 110, and a power supply 111. Those skilled in the art will appreciate that the mobile terminal structure shown in fig. 1 is not limiting of the mobile terminal and that the mobile terminal may include more or fewer components than shown, or may combine certain components, or a different arrangement of components.
The following describes the components of the mobile terminal in detail with reference to fig. 1:
the radio frequency unit 101 may be used for receiving and transmitting signals during the information receiving or communication process, specifically, after receiving downlink information of the base station, processing the downlink information by the processor 110; and, the uplink data is transmitted to the base station. Typically, the radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 101 may also communicate with networks and other devices via wireless communications. The wireless communication may use any communication standard or protocol, including but not limited to GSM (Global System of Mobile communication, global System for Mobile communications), GPRS (General Packet Radio Service ), CDMA2000 (Code Division Multiple Access, CDMA 2000), WCDMA (Wideband Code Division Multiple Access ), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access, time Division synchronous code Division multiple Access), FDD-LTE (Frequency Division Duplexing-Long Term Evolution, frequency Division Duplex Long term evolution), and TDD-LTE (Time Division Duplexing-Long Term Evolution, time Division Duplex Long term evolution), etc.
WiFi belongs to a short-distance wireless transmission technology, and a mobile terminal can help a user to send and receive e-mails, browse web pages, access streaming media and the like through the WiFi module 102, so that wireless broadband Internet access is provided for the user. Although fig. 1 shows a WiFi module 102, it is understood that it does not belong to the necessary constitution of a mobile terminal, and can be omitted entirely as required within a range that does not change the essence of the invention.
The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the WiFi module 102 or stored in the memory 109 into an audio signal and output as sound when the mobile terminal 100 is in a call signal reception mode, a talk mode, a recording mode, a voice recognition mode, a broadcast reception mode, or the like. Also, the audio output unit 103 may also provide audio output (e.g., a call signal reception sound, a message reception sound, etc.) related to a specific function performed by the mobile terminal 100. The audio output unit 103 may include a speaker, a buzzer, and the like.
The a/V input unit 104 is used to receive an audio or video signal. The a/V input unit 104 may include a graphics processor (Graphics Processing Unit, GPU) 1041 and a microphone 1042, the graphics processor 1041 processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the graphics processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the WiFi module 102. The microphone 1042 can receive sound (audio data) via the microphone 1042 in a phone call mode, a recording mode, a voice recognition mode, and the like, and can process such sound into audio data. The processed audio (voice) data may be converted into a format output that can be transmitted to the mobile communication base station via the radio frequency unit 101 in the case of a telephone call mode. The microphone 1042 may implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) noise or interference generated in the course of receiving and transmitting the audio signal.
The mobile terminal 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel 1061 according to the brightness of ambient light, and the proximity sensor can turn off the display panel 1061 and/or the backlight when the mobile terminal 100 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the acceleration in all directions (generally three axes), and can detect the gravity and direction when stationary, and can be used for applications of recognizing the gesture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer gesture calibration), vibration recognition related functions (such as pedometer and knocking), and the like; as for other sensors such as fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc. that may also be configured in the mobile phone, the detailed description thereof will be omitted.
The display unit 106 is used to display information input by a user or information provided to the user. The display unit 106 may include a display panel 1061, and the display panel 1061 may be configured in the form of a liquid crystal display (Liquid Crystal Display, LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 107 may be used to receive input numeric or character information and to generate key signal inputs related to user settings and function control of the mobile terminal. In particular, the user input unit 107 may include a touch panel 1071 and other input devices 1072. The touch panel 1071, also referred to as a touch screen, may collect touch operations thereon or thereabout by a user (e.g., operations of the user on the touch panel 1071 or thereabout by using any suitable object or accessory such as a finger, a stylus, etc.) and drive the corresponding connection device according to a predetermined program. The touch panel 1071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch azimuth of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device, converts it into touch point coordinates, and sends the touch point coordinates to the processor 110, and can receive and execute commands sent from the processor 110. Further, the touch panel 1071 may be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave. The user input unit 107 may include other input devices 1072 in addition to the touch panel 1071. In particular, other input devices 1072 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, mouse, joystick, etc., as specifically not limited herein.
Further, the touch panel 1071 may overlay the display panel 1061, and when the touch panel 1071 detects a touch operation thereon or thereabout, the touch panel 1071 is transferred to the processor 110 to determine the type of touch event, and then the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of touch event. Although in fig. 1, the touch panel 1071 and the display panel 1061 are two independent components for implementing the input and output functions of the mobile terminal, in some embodiments, the touch panel 1071 may be integrated with the display panel 1061 to implement the input and output functions of the mobile terminal, which is not limited herein.
The interface unit 108 serves as an interface through which at least one external device can be connected with the mobile terminal 100. For example, the external devices may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the mobile terminal 100 or may be used to transmit data between the mobile terminal 100 and an external device.
Memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a storage program area that may store an operating system, application programs required for at least one function (such as a sound playing function, an image playing function, etc.), and a storage data area; the storage data area may store data (such as audio data, phonebook, etc.) created according to the use of the handset, etc. In addition, memory 109 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.
The processor 110 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by running or executing software programs and/or modules stored in the memory 109 and calling data stored in the memory 109, thereby performing overall monitoring of the mobile terminal. Processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor that primarily handles operating systems, user interfaces, applications, etc., with a modem processor that primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 110.
The mobile terminal 100 may further include a power source 111 (e.g., a battery) for supplying power to the respective components, and preferably, the power source 111 may be logically connected to the processor 110 through a power management system, so as to perform functions of managing charging, discharging, and power consumption management through the power management system.
Although not shown in fig. 1, the mobile terminal 100 may further include a bluetooth module or the like, which is not described herein.
In order to facilitate understanding of the embodiments of the present invention, a communication network system on which the mobile terminal of the present invention is based will be described below.
Referring to fig. 2, fig. 2 is a schematic diagram of a communication network system according to an embodiment of the present invention, where the communication network system is an LTE system of a general mobile communication technology, and the LTE system includes a UE (User Equipment) 201, an e-UTRAN (Evolved UMTS Terrestrial Radio Access Network ) 202, an epc (Evolved Packet Core, evolved packet core) 203, and an IP service 204 of an operator that are sequentially connected in communication.
Specifically, the UE201 may be the terminal 100 described above, and will not be described herein.
The E-UTRAN202 includes eNodeB2021 and other eNodeB2022, etc. The eNodeB2021 may be connected with other eNodeB2022 by a backhaul (e.g., an X2 interface), the eNodeB2021 is connected to the EPC203, and the eNodeB2021 may provide access from the UE201 to the EPC 203.
EPC203 may include MME (Mobility Management Entity ) 2031, hss (Home Subscriber Server, home subscriber server) 2032, other MMEs 2033, SGW (Serving Gate Way) 2034, pgw (PDN Gate Way) 2035 and PCRF (Policy and Charging Rules Function, policy and tariff function entity) 2036, and so on. The MME2031 is a control node that handles signaling between the UE201 and EPC203, providing bearer and connection management. HSS2032 is used to provide registers to manage functions such as home location registers (not shown) and to hold user specific information about service characteristics, data rates, etc. All user data may be sent through SGW2034 and PGW2035 may provide IP address allocation and other functions for UE201, PCRF2036 is a policy and charging control policy decision point for traffic data flows and IP bearer resources, which selects and provides available policy and charging control decisions for a policy and charging enforcement function (not shown).
IP services 204 may include the internet, intranets, IMS (IP Multimedia Subsystem ), or other IP services, etc.
Although the LTE system is described above as an example, it should be understood by those skilled in the art that the present invention is not limited to LTE systems, but may be applied to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA, and future new network systems.
Based on the above mobile terminal hardware structure and the communication network system, various embodiments of the method of the present invention are provided.
First embodiment
Fig. 3 is a schematic flow chart of an anti-interference method of a camera according to a first embodiment of the present invention. Once triggered by a user, the method in this embodiment automatically operates the flow through the mobile terminal, where each step may be performed sequentially as shown in the flowchart or may be performed simultaneously according to the actual situation, and the method for processing information includes, but is not limited to, the following steps:
step 310, when detecting to start the camera, acquiring a first MCLK frequency and first communication data of the camera;
step 320, determining whether the first MCLK frequency falls within the first communication data; if yes, go to step 330, if no, go to step 340;
Step 330, adjusting the first MCLK frequency to a second MCLK frequency;
step 340, setting the MCLK frequency to the first MCLK frequency for normal operation.
By the above embodiment, when the camera is detected to be started, the first MCLK frequency and the first communication data of the camera are acquired, when the first MCLK frequency falls into the communication data, the first MCLK frequency is adjusted to be the second MCLK frequency, and when the first MCLK frequency does not fall into the communication data, the first MCLK frequency is set to be the first MCLK frequency for normal operation. Compared with the prior art, the anti-interference problem of the camera can be well solved without verifying whether all communication data are affected, and the efficiency is effectively improved.
Each step in the above embodiment is specifically explained below.
With respect to step 310, in the case of using wireless network Wi-Fi and/or global positioning system (Global Positioning System, GPS), when detecting to start the camera function, the mobile terminal reads the camera Master Clock (MCLK) frequency and communication data in real time. In this embodiment, for convenience of description, the current MCLK frequency is referred to as a first MCLK frequency, and the communication data is referred to as first communication data. The first communication data may be Wi-Fi communication band, or may be GPS reception band, or may be Wi-Fi communication band and GPS reception band.
Alternatively, as will be appreciated by those skilled in the art, the camera function may be initiated by turning on the camera application, or other applications that initiate the camera function, such as: scanning two-dimensional codes, face recognition unlocking and the like. The camera application may be a program of the mobile terminal, or may be a third party application, and the present application is not particularly limited herein.
With respect to step 320, it is determined whether the first MCLK frequency falls within the first communication data based on the MCLK frequency based on the chip interior provided by the camera manufacturer. The MCLK frequency is divided into frequency multiplication and frequency division, whether the frequency multiplication falls into the first communication data can be judged if not, whether the frequency division falls into the first communication data is judged, if not, the operation is carried out at the frequency, and if so, the corresponding frequency is adjusted. Or, whether the frequency division falls into the first communication data is judged, if not, whether the frequency multiplication falls into the first communication data is judged, if not, the operation is performed at the frequency, and if so, the corresponding frequency is adjusted.
With respect to step 330, if the first MCLK frequency falls within the first communication data, another clock frequency is selected as the second MCLK frequency, and then step 320 is returned to again determine whether the second MCLK frequency falls within the first communication data, if so, one clock frequency is selected again until the clock frequency does not fall within the communication data, and step 340 is entered. In practical application, the mobile phone camera manufacturer may have a series of MCLK clock frequency recommended values f1, f2, f3, f4, f5 … fn, etc., which can be selected as long as they meet the manufacturer recommendation, that is, the selected second MCLK frequency may be the manufacturer recommended value. In other embodiments, the MCLK frequency may be adjusted in other ways, and the application is not particularly limited herein.
With respect to step 340, when the first MCLK frequency does not fall within the first communication data, then the camera continues to operate at this clock frequency. When the clock frequency after any adjustment does not fall into the first communication data, the camera continues to work at the clock frequency of the time.
According to the anti-interference method for the camera, when the camera is detected to be opened, the clock frequency and communication data of the MCLK of the camera are read in real time. And calculating whether a frequency multiplication point of the clock frequency falls in the first communication data according to a frequency calculation formula based on MCLK in the chip provided by a camera manufacturer. If not, the camera continues to operate at the clock frequency. If yes, the next clock frequency is selected, and whether the clock frequency falls into the communication data is continuously judged until all the clock frequencies are judged, so that the influence of the camera MCLK on real-time communication is reduced to the greatest extent.
Second embodiment
Fig. 4 is a schematic flow chart of an anti-interference method of a camera according to a second embodiment of the present invention. In a second embodiment, in the case where the acquired communication data is a communication band of the wireless network, once the method in this embodiment is triggered by the user, the flow in this embodiment is automatically operated by the mobile terminal, where each step may be performed sequentially as shown in the flowchart or may be performed simultaneously according to the actual situation, and the method for processing information includes, without limitation, the following steps:
Step 410, when detecting to start the camera, acquiring a first MCLK frequency and first communication data of the camera;
step 420, determining whether the current MCLK frequency falls within the first communication data; if yes, go to step 430, if no, go to step 460;
step 430, adjusting the first MCLK frequency to a second MCLK frequency;
step 440, if the second MCLK frequency falls within the first communication data, determining whether all preset clock frequencies are compared; if yes, go to step 450, if not, return to step 420;
step 450, changing the wireless network channel;
step 460, setting the MCLK frequency to the current MCLK frequency for normal operation.
By the above embodiment, when the camera is detected to be started, the first MCLK frequency and the first communication data of the camera are acquired, and when the first MCLK frequency falls into the communication data, the first MCLK frequency is adjusted to be the second MCLK frequency. If the second MCLK frequency falls within the first communication data, then further determining whether all of the predetermined clock frequencies have been compared, if not, then re-determining, if so, then changing the channel of the wireless network. When the first MCLK frequency or the adjusted second MCLK frequency does not fall within the communication data, the MCLK frequency is set to the first MCLK frequency for normal operation. Compared with the prior art, the anti-interference problem of the camera can be well solved without verifying whether all communication data are affected, and the efficiency is effectively improved.
Each step in the above embodiment is specifically explained below.
The content of steps 410-430 in this embodiment is the same as that of steps 310-330 in the first embodiment, and for the same content, the description of this embodiment is omitted here.
Regarding step 440, when the second MCLK frequency falls within the first communication data, it is determined whether all the preset frequencies are set, if not, the preset clock frequency is set continuously, that is, if the recommended clock frequency is the first MCLK frequency and the second MCLK frequency, the determination result is: all preset frequencies are set and all preset clock frequencies are compared; if the recommended clock frequency is the first MCLK frequency, the second MCLK frequency, the third MCLK frequency, the fourth MCLK frequency, etc., then the determination result is: all preset frequencies are not set, and the step 420 is returned to again judge whether the adjusted clock frequency falls into the communication data.
With respect to step 450, when all of the predetermined clock frequencies fall within the first communication data, then the channel of the wireless network is changed.
Optionally, as shown in fig. 5, after step 450, the method further includes:
Step 510, obtaining a second communication frequency band;
step 520, determining whether all MCLK frequencies fall within the second communication frequency band; if yes, go to step 530, if no, go to step 540;
step 530, changing the wireless network channel again;
step 540, setting the MCLK frequency to the current MCLK frequency for normal operation.
Specifically, the communication frequency band before changing the current channel of the wireless network is set as the first communication frequency band, the changed communication frequency band is the second communication frequency band, the second communication frequency band is acquired, whether the second MCLK frequency and other adjusted MCLK frequencies fall into the second communication frequency band or not is judged respectively, if no condition exists, the normal operation is carried out by the MCLK frequency which does not fall into the second communication frequency band currently, otherwise, if all the MCLK frequencies fall into the second communication frequency band, the wireless network channel is changed again, and the process is repeated.
Third embodiment
Fig. 6 is a schematic flow chart of an anti-interference method of a camera according to a third embodiment of the present invention. In a third embodiment, in the case where the acquired communication data is the reception frequency band of the GPS, once the method of the embodiment is triggered by the user, the flow in the embodiment is automatically operated by the mobile terminal, where each step may be performed sequentially as shown in the flowchart or may be performed simultaneously according to the actual situation, and the method of information processing includes, without limitation, the following steps:
Step 610, when detecting to start the camera, acquiring the current MCLK frequency and the current communication data of the camera;
step 620, determining whether the current MCLK frequency falls within the current communication data; if yes, go to step 630, if no, go to step 660;
step 630, adjusting the current MCLK frequency to the second MCLK frequency;
step 640, if the second MCLK frequency falls within the current communication data, determining whether all preset clock frequencies are compared; if yes, go to step 650, if no, return to step 620;
step 650, adjusting the current MCLK frequency to a frequency value having the largest frequency interval with the GPS receiving frequency band;
step 660, setting the MCLK frequency to the current MCLK frequency for normal operation.
By the above embodiment, when the camera is detected to be started, the first MCLK frequency and the first communication data of the camera are acquired, and when the first MCLK frequency falls into the communication data, the first MCLK frequency is adjusted to be the second MCLK frequency. If the second MCLK frequency falls into the first communication data, further judging whether all the preset clock frequencies are compared, if not, re-judging, and if so, adjusting the current MCLK frequency to be the frequency value with the largest interval with the GPS receiving frequency band. And when the first MCLK frequency or the adjusted second MCLK frequency does not fall within the communication data, setting the MCLK frequency to the second MCLK frequency for normal operation. Compared with the prior art, the anti-interference problem of the camera can be well solved without verifying whether all communication data are affected, and the efficiency is effectively improved.
Each step in the above embodiment is specifically explained below.
The contents of steps 610 to 630 in this embodiment are the same as those of steps 310 to 330 in the first embodiment, and for the same contents, the description of this embodiment is omitted here.
Regarding step 640, when the second MCLK frequency falls within the first communication data, it is determined whether all the preset frequencies are set, if not, the preset clock frequency is set continuously, that is, if the recommended clock frequency is the first MCLK frequency and the second MCLK frequency, the determination result is: all preset frequencies are set and all preset clock frequencies are compared; if the recommended clock frequency is the first MCLK frequency, the second MCLK frequency, the third MCLK frequency, the fourth MCLK frequency, etc., then the determination result is: all preset frequencies are not set, and step 620 is returned to again determine whether the adjusted clock frequency falls within the communication data.
Regarding step 650, when all the preset clock frequencies fall into the first communication data, the current MCLK frequency is adjusted to the frequency value with the largest frequency interval with the GPS receiving frequency band.
Fourth embodiment
Fig. 7 is a schematic flow chart of an anti-interference method of a camera according to a fourth embodiment of the present invention. In a fourth embodiment, in the case where the acquired communication data is a communication frequency band of a wireless network and a receiving frequency band of a GPS, once the method of the embodiment is triggered by a user, the flow in the embodiment is automatically operated by the mobile terminal, where each step may be performed sequentially as in the sequence of the flow chart when the mobile terminal is operated, or may be performed simultaneously according to the actual situation, and the method of information processing includes, without limitation, the following steps:
step 710, when detecting to start the camera, acquiring a first MCLK frequency and first communication data of the camera;
step 720, determining whether the first MCLK frequency falls within the first communication data; if yes, go to step 730, if no, go to step 770;
step 730, determining whether there is an MCLK frequency that does not affect the GPS reception; if yes, go to step 740, if no, go to step 750;
step 740, adjusting the first MCLK frequency to a MCLK frequency not affecting the GPS reception;
step 750, adjusting the first MCLK frequency to the MCLK frequency having the greatest separation from the GPS receive bin;
Step 760, setting the MCLK frequency to the current MCLK frequency for normal operation.
According to the embodiment, when the camera is detected to be started, the first MCLK frequency and the first communication data of the camera are acquired, when the first MCLK frequency falls into the communication data, whether the MCLK frequency which does not affect the GPS reception exists is judged, if yes, the first MCLK frequency is adjusted to the MCLK frequency which does not affect the GPS reception, and if not, the first MCLK frequency is adjusted to the MCLK frequency with the largest frequency band interval with the GPS reception. When the first MCLK frequency does not fall within the communication data, the MCLK frequency is set to the current MCLK frequency for normal operation. Compared with the prior art, the anti-interference problem of the camera can be well solved without verifying whether all communication data are affected, and the efficiency is effectively improved.
Each step in the above embodiment is specifically explained below.
The content of steps 710-720 in this embodiment is the same as that of steps 310-320 in the first embodiment, and for the same content, the description of this embodiment is omitted here.
In this embodiment, if all MCLK frequencies do not fall in the GPS and Wi-Fi reception bands, the camera operates normally at the current MCLK frequency.
If the MCLK frequency can not meet the requirement of not affecting GPS and Wi-Fi at the same time, further judging whether the MCLK frequency which does not affect GPS reception exists, and if so, selecting the MCLK value which meets the GPS condition; if not, selecting the MCLK value with the largest frequency multiplication value and GPS receiving frequency band interval. The influence on the GPS is reduced to the greatest extent by selecting a preset MCLK value.
Optionally, as shown in fig. 8, in step 750 or steps 760 to 760, the method further includes:
step 810, judging whether all preset clock frequencies are compared; if yes, go to step 820, if not, continue to change the frequency and compare whether the changed clock frequency falls into the communication data;
step 820, changing the wireless network channel;
step 830, obtaining a changed communication band;
step 840, judging whether the current MCLK frequency falls within said communication band; if yes, go to step 850, if no, go to step 860;
step 850, changing the wireless network channel to the channel with the largest frequency interval with the current MCLK;
step 860 sets the MCLK frequency to the current MCLK frequency for normal operation.
Specifically, when all preset clock frequencies fall into the communication frequency band of the wireless network, the current Wi-Fi receiving frequency band is changed until the selected MCLK frequency is judged not to fall into the receiving channel, the operation is continued in the channel, otherwise, the channel with the largest current MCLK frequency and Wi-Fi communication frequency band is selected to continue to operate. In the current MCLK state, interference caused by the clock frequency of the camera is reduced by changing the communication channel of Wi-Fi.
With this embodiment, four cases can occur: first, MCLK values that address both GPS and Wi-Fi interference; secondly, selecting an MCLK value for solving GPS interference, and changing a Wi-Fi communication channel to solve Wi-Fi interference; thirdly, selecting an MCLK value with the smallest influence on the GPS, and then solving Wi-Fi interference by changing a Wi-Fi communication channel; fourth, the MCLK value with the least impact on GPS is selected, and the channel with the least impact on Wi-Fi by this MCLK is selected for communication.
Fifth embodiment
The mobile terminal according to the fifth embodiment of the present invention, based on the above-mentioned embodiments and fig. 1, includes a processor 110 and a memory 109;
the processor 110 is configured to execute the anti-interference program of the camera stored in the memory 109, so as to implement the following steps:
when the starting of the camera is detected, acquiring a first MCLK frequency and first communication data of the camera;
determining whether the first MCLK frequency falls within the first communication data; if yes, the first MCLK frequency is adjusted to be the second MCLK frequency, and if not, the MCLK frequency is set to be the first MCLK frequency for normal operation.
By the above embodiment, when the camera is detected to be started, the first MCLK frequency and the first communication data of the camera are acquired, when the first MCLK frequency falls into the communication data, the first MCLK frequency is adjusted to be the second MCLK frequency, and when the first MCLK frequency does not fall into the communication data, the first MCLK frequency is set to be the first MCLK frequency for normal operation. Compared with the prior art, the anti-interference problem of the camera can be well solved without verifying whether all communication data are affected, and the efficiency is effectively improved.
Each step in the above embodiment is specifically explained below.
In the case of using the wireless network Wi-Fi and/or GPS, when the mobile terminal detects that the camera function is started, the frequency of the camera MCLK and communication data are read in real time. In this embodiment, for convenience of description, the current MCLK frequency is referred to as a first MCLK frequency, and the communication data is referred to as first communication data. The first communication data may be Wi-Fi communication band, or may be GPS reception band, or may be Wi-Fi communication band and GPS reception band.
Alternatively, as will be appreciated by those skilled in the art, the camera function may be initiated by turning on the camera application, or other applications that initiate the camera function, such as: scanning two-dimensional codes, face recognition unlocking and the like. The camera application may be a program of the mobile terminal, or may be a third party application, and the present invention is not particularly limited herein.
And judging whether the first MCLK frequency falls into the first communication data or not according to the MCLK frequency in the chip provided by the camera manufacturer. The MCLK frequency is divided into frequency multiplication and frequency division, whether the frequency multiplication falls into the first communication data can be judged if not, whether the frequency division falls into the first communication data is judged, if not, the operation is carried out at the frequency, and if so, the corresponding frequency is adjusted. Or, whether the frequency division falls into the first communication data is judged, if not, whether the frequency multiplication falls into the first communication data is judged, if not, the operation is performed at the frequency, and if so, the corresponding frequency is adjusted.
If the first MCLK frequency falls within the first communication data, another clock frequency is selected as the second MCLK frequency, and then step 320 is returned to again determine whether the second MCLK frequency falls within the first communication data, if so, one clock frequency is selected again until the clock frequency does not fall within the communication data. In practical application, the mobile phone camera manufacturer may have a series of MCLK clock frequency recommended values f1, f2, f3, f4, f5 … fn, etc., which can be selected as long as they meet the manufacturer recommendation, that is, the selected second MCLK frequency may be the manufacturer recommended value. In other embodiments, the MCLK frequency may be adjusted in other ways, and the application is not particularly limited herein.
When the first MCLK frequency does not fall within the first communication data, then the camera continues to operate at this clock frequency. When the clock frequency after any adjustment does not fall into the first communication data, the camera continues to work at the clock frequency of the time.
Optionally, the processor 110 is further configured to execute an anti-interference program of the camera stored in the memory 109, so as to implement the following steps:
if the second MCLK frequency falls within the first communication data, determining whether all of the predetermined clock frequencies are compared; if yes, changing the wireless network channel, otherwise, setting the MCLK frequency as the current MCLK frequency for normal operation.
When the second MCLK frequency falls into the first communication data, determining whether all preset frequencies are set, if not, continuing to set the preset clock frequency, that is, if the recommended clock frequency is the first MCLK frequency and the second MCLK frequency, determining that: all preset frequencies are set and all preset clock frequencies are compared; if the recommended clock frequency is the first MCLK frequency, the second MCLK frequency, the third MCLK frequency, the fourth MCLK frequency, etc., then the determination result is: all preset frequencies are not set, and the step 420 is returned to again judge whether the adjusted clock frequency falls into the communication data.
When all preset clock frequencies fall into the first communication data, the channel of the wireless network is changed.
Optionally, the processor 110 is further configured to execute an anti-interference program of the camera stored in the memory 109, so as to implement the following steps:
acquiring a second communication frequency band;
judging whether all MCLK frequencies fall into the second communication frequency band; if yes, the wireless network channel is changed again, and if not, the MCLK frequency is set to be the current MCLK frequency for normal operation.
Specifically, the communication frequency band before changing the current channel of the wireless network is set as the first communication frequency band, the changed communication frequency band is the second communication frequency band, the second communication frequency band is acquired, whether the second MCLK frequency and other adjusted MCLK frequencies fall into the second communication frequency band or not is judged respectively, if no condition exists, the normal operation is carried out by the MCLK frequency which does not fall into the second communication frequency band currently, otherwise, if all the MCLK frequencies fall into the second communication frequency band, the wireless network channel is changed again, and the process is repeated.
Optionally, the processor 110 is further configured to execute an anti-interference program of the camera stored in the memory 109, so as to implement the following steps:
judging whether the current MCLK frequency falls within the current communication data; if yes, adjusting the current MCLK frequency to be a second MCLK frequency; if not, setting the MCLK frequency as the current MCLK frequency for normal operation.
If the second MCLK frequency falls into the current communication data, judging whether all preset clock frequencies are compared; if yes, the current MCLK frequency is adjusted to be the frequency value with the largest frequency interval with the GPS receiving frequency band, if not, whether the current MCLK frequency falls into the current communication data is judged again.
By the above embodiment, when the camera is detected to be started, the first MCLK frequency and the first communication data of the camera are acquired, and when the first MCLK frequency falls into the communication data, the first MCLK frequency is adjusted to be the second MCLK frequency. If the second MCLK frequency falls into the first communication data, further judging whether all the preset clock frequencies are compared, if not, re-judging, and if so, adjusting the current MCLK frequency to be the frequency value with the largest interval with the GPS receiving frequency band. And when the first MCLK frequency or the adjusted second MCLK frequency does not fall within the communication data, setting the MCLK frequency to the second MCLK frequency for normal operation. Compared with the prior art, the anti-interference problem of the camera can be well solved without verifying whether all communication data are affected, and the efficiency is effectively improved.
Each step in the above embodiment is specifically explained below.
When the second MCLK frequency falls into the first communication data, determining whether all preset frequencies are set, if not, continuing to set the preset clock frequency, that is, if the recommended clock frequency is the first MCLK frequency and the second MCLK frequency, determining that: all preset frequencies are set and all preset clock frequencies are compared; if the recommended clock frequency is the first MCLK frequency, the second MCLK frequency, the third MCLK frequency, the fourth MCLK frequency, etc., then the determination result is: all preset frequencies are not set, and whether the adjusted clock frequency falls into communication data is judged again.
When all the preset clock frequencies fall into the first communication data, the current MCLK frequency is adjusted to be the frequency value with the largest interval with the GPS receiving frequency band.
Optionally, the processor 110 is further configured to execute an anti-interference program of the camera stored in the memory 109, so as to implement the following steps:
determining whether the first MCLK frequency falls within the first communication data; if yes, judging whether the MCLK frequency which does not influence the GPS reception exists, and if not, setting the MCLK frequency as the current MCLK frequency to perform normal operation;
adjusting the first MCLK frequency to an MCLK frequency that does not affect GPS reception when there is an MCLK frequency that does not affect GPS reception;
when there is no MCLK frequency that does not affect GPS reception, adjusting the first MCLK frequency to the MCLK frequency having the greatest separation from the GPS reception frequency band;
optionally, the processor 110 is further configured to execute an anti-interference program of the camera stored in the memory 109, so as to implement the following steps:
judging whether all preset clock frequencies are compared or not; if yes, changing the wireless network channel, if not, continuing to change the frequency and continuing to compare whether the changed clock frequency falls into communication data;
Acquiring a changed communication frequency band;
judging whether the current MCLK frequency falls into the communication frequency band; if yes, changing the wireless network channel to the channel with the largest interval with the current MCLK frequency, otherwise, setting the MCLK frequency as the current MCLK frequency for normal operation.
Specifically, when all preset clock frequencies fall into the communication frequency band of the wireless network, the current Wi-Fi receiving frequency band is changed until the selected MCLK frequency is judged not to fall into the receiving channel, the operation is continued in the channel, otherwise, the channel with the largest current MCLK frequency and Wi-Fi communication frequency band is selected to continue to operate. In the current MCLK state, interference caused by the clock frequency of the camera is reduced by changing the communication channel of Wi-Fi.
With this embodiment, four cases can occur: first, MCLK values that address both GPS and Wi-Fi interference; secondly, selecting an MCLK value for solving GPS interference, and changing a Wi-Fi communication channel to solve Wi-Fi interference; thirdly, selecting an MCLK value with the smallest influence on the GPS, and then solving Wi-Fi interference by changing a Wi-Fi communication channel; fourth, the MCLK value with the least impact on GPS is selected, and the channel with the least impact on Wi-Fi by this MCLK is selected for communication.
According to the mobile terminal provided by the embodiment of the application, when the opening of the camera is detected, the clock frequency and communication data of the MCLK of the camera are read in real time. And calculating whether a frequency multiplication point of the clock frequency falls in the first communication data according to a frequency calculation formula based on MCLK in the chip provided by a camera manufacturer. If not, the camera continues to operate at the clock frequency. If yes, the next clock frequency is selected, and whether the clock frequency falls into the communication data is continuously judged until all the clock frequencies are judged, so that the influence of the camera MCLK on real-time communication is reduced to the greatest extent.
Sixth embodiment
The embodiment of the application also provides a computer readable storage medium. The computer-readable storage medium here stores one or more programs. Wherein the computer readable storage medium may include volatile memory, such as random access memory; the memory may also include non-volatile memory, such as read-only memory, flash memory, hard disk, or solid state disk; the memory may also comprise a combination of the above types of memories. The anti-interference method for the camera provided in the first embodiment, the second embodiment, the third embodiment, or the fourth embodiment is implemented when one or more programs in a computer-readable storage medium are executable by one or more processors.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present invention.
The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are to be protected by the present invention.

Claims (4)

1. An anti-interference method for a camera is characterized by comprising the following steps:
when the starting of the camera is detected, acquiring the first main system clock MCLK frequency and first communication data of the camera;
determining whether the first MCLK frequency falls within the first communication data;
if not, normal work is carried out at the first MCLK frequency;
if yes, adjusting the first MCLK frequency to be a second MCLK frequency;
when the acquired communication data is a communication frequency band of a wireless network and a reception frequency band of a GPS, the adjusting the first MCLK frequency to be the second MCLK frequency includes:
judging whether MCLK frequency which does not affect the GPS reception exists;
if yes, adjusting the first MCLK frequency to a MCLK frequency which does not affect the GPS reception;
If not, adjusting the first MCLK frequency to the MCLK frequency with the largest receiving frequency band interval of the GPS;
the MCLK frequency that does not affect the GPS reception is a third MCLK frequency, the method further comprising, after adjusting the first MCLK frequency to the MCLK frequency that does not affect the GPS reception:
judging whether all preset clock frequencies are compared or not;
if not, continuing to adjust the MCLK frequency and continuing to compare whether the adjusted MCLK frequency falls into the communication data;
if yes, changing the channel of the wireless network, wherein the current communication frequency band of the wireless network is a third communication frequency band after the channel is changed;
acquiring the third communication frequency band;
judging whether the third MCLK frequency falls within the third communication band;
if so, changing the channel of the wireless network to the channel with the largest frequency interval with the third MCLK.
2. The method of claim 1, wherein determining whether the first MCLK frequency falls within the first communication data comprises:
judging whether the first MCLK frequency falls into the receiving frequency band of the GPS;
if not, judging whether the first MCLK frequency falls into the communication frequency band of the wireless network.
3. A mobile terminal, comprising a processor and a memory;
the processor is configured to execute an anti-interference program of the camera stored in the memory, so as to implement the method of claim 1 or 2.
4. A computer readable storage medium storing one or more programs for execution by one or more processors to implement the method of claim 1 or 2.
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