CN107769154B - Method of undervoltage protection, device, video camera and the storage medium of web camera - Google Patents
Method of undervoltage protection, device, video camera and the storage medium of web camera Download PDFInfo
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Abstract
Applicable network camcorder technology of the present invention field, provide a kind of method of undervoltage protection of web camera, device, video camera and storage medium, this method comprises: the operating voltage to web camera is monitored, work as previous ADC value when previous web camera operating voltage is corresponding according to preset voltage acquisition frequency acquisition, it will be compared when previous ADC value and preset low pressure ADC threshold value, when when previous ADC value is less than low pressure ADC threshold value, determine whether the corresponding previous ADC value of previous web camera operating voltage is less than low pressure ADC threshold value, when previous ADC value is less than low pressure ADC threshold value, counting operation is carried out to low pressure counter, obtain the current count value of low pressure counter, when current count value reaches preset count threshold, cut off the power supply of web camera, in this way, Web camera is only just closed when continuous several times low-voltage occurs in the supply voltage of web camera, to improve the stability of web camera operation while protecting web camera.
Description
Technical field
The invention belongs to web camera technical field more particularly to a kind of method of undervoltage protection of web camera,
Device, video camera and storage medium.
Background technique
Web camera (IP Camera, be abbreviated as IPC) is in addition to having image taking possessed by general traditional cameras
Outside function, video data can also be added through compression by built-in digitalization compressed controller and based on the operating system of WEB
After close, sent by local area network, Internet or wireless network to terminal user.IPC can be directly connected to the network of TCP/IP
In, thus the main function of IPC operating system be for networking, the transmission of video and audio.
Under normal circumstances, low voltage protection circuit can be all arranged in IPC equipment, cause to avoid because operating voltage is lower
IPC hardware or component damage, however, when operating voltage is unstable, in order to protect the hardware or element in IPC, low-voltage
Protection circuit can frequently control power switch, so that IPC frequently switches on machine, to reduce the availability and stability of IPC.
Summary of the invention
The purpose of the present invention is to provide a kind of method of undervoltage protection of web camera, device, video camera and storages
Medium, it is intended to solve that a kind of effective web camera method of undervoltage protection can not be provided due to the prior art, lead to network
The problem of video camera frequently switches on machine under low voltage condition.
On the one hand, the present invention provides a kind of method of undervoltage protection of web camera, and the method includes following steps
It is rapid:
The operating voltage of web camera is monitored, the previous net is worked as according to preset voltage acquisition frequency acquisition
Network camera operation voltage is corresponding to work as previous ADC value；
By described when previous ADC value and preset low pressure ADC threshold value are compared, when described when previous ADC value is less than institute
When stating low pressure ADC threshold value, determine whether the corresponding previous ADC value of the previous web camera operating voltage is less than the low pressure
ADC threshold value；
When the previous ADC value is less than the low pressure ADC threshold value, to low pressure counter progress counting operation；
The current count value for obtaining the low pressure counter, when the current count value reaches preset count threshold,
Cut off the power supply of the web camera.
On the other hand, the present invention provides a kind of undervoltage protection of web camera, described device includes:
ADC value acquiring unit, is monitored for the operating voltage to web camera, according to preset voltage acquisition frequency
Rate, which is obtained, works as previous ADC value when the previous web camera operating voltage is corresponding；
Relation determination unit, for by described when previous ADC value and preset low pressure ADC threshold value are compared, when described
When previous ADC value is less than the low pressure ADC threshold value, the corresponding previous ADC of the previous web camera operating voltage is determined
Whether value is less than the low pressure ADC threshold value；
Counting unit counts low pressure counter for being less than the low pressure ADC threshold value when the previous ADC value
Operation；And
First power switching unit, for obtaining the current count value of the low pressure counter, when the current count value
When reaching preset count threshold, the power supply of the web camera is cut off.
On the other hand, it the present invention also provides a kind of web camera, including memory, processor and is stored in described
In memory and the computer program that can run on the processor, the processor are realized when executing the computer program
The step of method as described above.
On the other hand, the present invention also provides a kind of computer readable storage medium, the computer readable storage mediums
It is stored with computer program, the step of computer program realizes method as described above when being executed by processor.
The present invention is monitored the operating voltage of web camera, according to preset voltage acquisition frequency acquisition when previous
Web camera operating voltage is corresponding to work as previous ADC value, will be compared when previous ADC value and preset low pressure ADC threshold value,
When previous ADC value is less than low pressure ADC threshold value, whether the corresponding previous ADC value of previous web camera operating voltage is determined
Less than low pressure ADC threshold value, when previous ADC value is less than low pressure ADC threshold value, to low pressure counter progress counting operation, acquisition low pressure
The current count value of counter cuts off the power supply of web camera when current count value reaches preset count threshold, this
Sample only just closes web camera, thus in catch net when continuous several times low-voltage occurs in the supply voltage of web camera
While network video camera, the stability of web camera operation is improved.
Detailed description of the invention
Fig. 1 is the implementation flow chart of the method for undervoltage protection for the web camera that the embodiment of the present invention one provides；
Fig. 2 is the implementation flow chart of the method for undervoltage protection of web camera provided by Embodiment 2 of the present invention；
Fig. 3 is the structural schematic diagram of the undervoltage protection for the web camera that the embodiment of the present invention three provides；
Fig. 4 is the structural schematic diagram of the undervoltage protection for the web camera that the embodiment of the present invention four provides；And
Fig. 5 is the structural schematic diagram for the web camera that the embodiment of the present invention five provides.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Specific implementation of the invention is described in detail below in conjunction with specific embodiment:
Embodiment one:
Fig. 1 shows the implementation process of the method for undervoltage protection of the web camera of the offer of the embodiment of the present invention one, is
Convenient for explanation, only parts related to embodiments of the present invention are shown, details are as follows:
In step s101, the operating voltage of web camera is monitored, is obtained according to preset voltage acquisition frequency
It takes when previous web camera operating voltage is corresponding when previous ADC value.
In embodiments of the present invention, for the protection to web camera, when web camera is run in a low voltage state
Built-in low-voltage protection circuit or device can be automatically cut off the power, to protect to web camera.Network is taken the photograph in order to prevent
Camera frequently switches on machine, while realizing effective protection to web camera, in web camera work to web camera
Operating voltage is monitored, and is worked as according to preset voltage acquisition frequency acquisition when previous web camera operating voltage is corresponding
Previous ADC (Analog-to-Digital Converter) value, frequency acquisition can be according to the supply voltage feelings of web camera
Condition is configured.Preferably, before the operating voltage to web camera is monitored, voltage acquisition frequency is set
It sets, to improve the degree of automation of voltage acquisition.Preferably, voltage acquisition frequency is 1 second, to improve the timely of voltage acquisition
Property, accurate cutting opportunity is provided for subsequent network video camera.
In step s 102, it will be compared when previous ADC value and preset low pressure ADC threshold value, when working as, previous ADC value is small
When low pressure ADC threshold value, determine whether the corresponding previous ADC value of previous web camera operating voltage is less than low pressure ADC threshold value.
In embodiments of the present invention, low pressure ADC threshold value is the corresponding ADC of critical low pressure of web camera safe operation
Value, it is preferable that before the operating voltage to web camera is monitored, low pressure ADC threshold value is configured, after improving
The degree of automation of continuous judgement.When previous ADC value is less than low pressure ADC threshold value, previous web camera operating voltage is determined
Whether corresponding previous ADC value is less than low pressure ADC threshold value, to determine it is continuous low whether the operating voltage of web camera occurs
Pressure.If when previous ADC value is the web camera corresponding ADC value of collection voltages for the first time, the voltage ADC of one acquisition before setting
It is worth (that is: previous ADC value) and is greater than low pressure ADC threshold value, to guarantees the correctness of judgement.
In step s 103, when previous ADC value is less than low pressure ADC threshold value, to low pressure counter progress counting operation.
In embodiments of the present invention, the operating voltage that low pressure counter is used to record acquisition is continuously lower than low pressure ADC threshold value
Number, when previous ADC value be less than low pressure ADC threshold value, to low pressure counter carry out counting operation, i.e., plus 1 operation, otherwise will
Low pressure counter O reset.
In step S104, the current count value of low pressure counter is obtained, when current count value reaches preset counting valve
When value, the power supply of web camera is cut off.
In embodiments of the present invention, the operating voltage of web camera is monitored, according to preset voltage acquisition frequency
Rate, which is obtained, works as previous ADC value when previous web camera operating voltage is corresponding, will work as previous ADC value and preset low pressure ADC
Threshold value is compared, and when previous ADC value is less than low pressure ADC threshold value, determines that previous web camera operating voltage is corresponding
Whether previous ADC value is less than low pressure ADC threshold value, when previous ADC value be less than low pressure ADC threshold value, low pressure counter is counted
Operation obtains the current count value of low pressure counter, when current count value reaches preset count threshold, cuts off network shooting
The power supply of machine, in this way, web camera is only just closed when continuous several times low-voltage occurs in the supply voltage of web camera, from
And while protecting web camera, improve the stability of web camera operation.
Embodiment two:
Fig. 2 shows the implementation processes of the method for undervoltage protection of web camera provided by Embodiment 2 of the present invention, are
Convenient for explanation, only parts related to embodiments of the present invention are shown, details are as follows:
In step s 201, when the starting for receiving web camera is requested, electricity is currently up to web camera
Pressure is monitored.
In step S202, it is to then follow the steps S203 that it is that pressure is less than low pressure ADC threshold value that judgement, which is currently up voltage,
It is no to then follow the steps S204.
In step S203, when being currently up voltage less than low pressure ADC threshold value, pass through the low-voltage variation of web camera
The power supply of circuitry cuts web camera.
In step S204, when being currently up voltage not less than low pressure ADC threshold value, start web camera.
In embodiments of the present invention, when the starting for receiving web camera is requested, to currently opening for web camera
Dynamic voltage is monitored, and when being currently up voltage less than low pressure ADC threshold value, is cut by the low-voltage protection circuit of web camera
The power supply of circuit network video camera guarantees web camera starting to guarantee that web camera starts and runs under reliable voltage
Safe and stable operation afterwards.
In step S205, the operating voltage of web camera is monitored, is obtained according to preset voltage acquisition frequency
It takes when previous web camera operating voltage is corresponding when previous ADC value.
In embodiments of the present invention, for the protection to web camera, when web camera is run in a low voltage state
Built-in low-voltage protection circuit or device can be automatically cut off the power, to protect to web camera.Network is taken the photograph in order to prevent
Camera frequently switches on machine, while realizing effective protection to web camera, in web camera work to web camera
Operating voltage is monitored, and is worked as according to preset voltage acquisition frequency acquisition when previous web camera operating voltage is corresponding
Previous ADC (Analog-to-Digital Converter) value, frequency acquisition can be according to the supply voltage feelings of web camera
Condition is configured.Preferably, before the operating voltage to web camera is monitored, voltage acquisition frequency is set
It sets, to improve the degree of automation of voltage acquisition.Preferably, voltage acquisition frequency is 1 second, to improve the timely of voltage acquisition
Property, accurate cutting opportunity is provided for subsequent network video camera.
It in step S206, will be compared when previous ADC value and preset low pressure ADC threshold value, when working as, previous ADC value is small
When low pressure ADC threshold value, determine whether the corresponding previous ADC value of previous web camera operating voltage is less than low pressure ADC threshold value.
In embodiments of the present invention, low pressure ADC threshold value is the corresponding ADC of critical low pressure of web camera safe operation
Value, it is preferable that before the operating voltage to web camera is monitored, low pressure ADC threshold value is configured, after improving
The degree of automation of continuous judgement.When previous ADC value is less than low pressure ADC threshold value, previous web camera operating voltage is determined
Whether corresponding previous ADC value is less than low pressure ADC threshold value, to determine it is continuous low whether the operating voltage of web camera occurs
Pressure.If when previous ADC value is the web camera corresponding ADC value of collection voltages for the first time, the voltage ADC of one acquisition before setting
It is worth (that is: previous ADC value) and is greater than low pressure ADC threshold value, to guarantees the correctness of judgement.
In step S207, when previous ADC value is less than low pressure ADC threshold value, to low pressure counter progress counting operation.
In embodiments of the present invention, the operating voltage that low pressure counter is used to record acquisition is continuously lower than low pressure ADC threshold value
Number, when previous ADC value be less than low pressure ADC threshold value, to low pressure counter carry out counting operation, i.e., plus 1 operation, otherwise will
Low pressure counter O reset.
In step S208, the current count value of low pressure counter is obtained, when current count value reaches preset counting valve
When value, the power supply of web camera is cut off.
In embodiments of the present invention, the operating voltage of web camera is monitored, according to preset voltage acquisition frequency
Rate, which is obtained, works as previous ADC value when previous web camera operating voltage is corresponding, will work as previous ADC value and preset low pressure ADC
Threshold value is compared, and when previous ADC value is less than low pressure ADC threshold value, determines that previous web camera operating voltage is corresponding
Whether previous ADC value is less than low pressure ADC threshold value, when previous ADC value be less than low pressure ADC threshold value, low pressure counter is counted
Operation obtains the current count value of low pressure counter, when current count value reaches preset count threshold, cuts off network shooting
The power supply of machine, in this way, web camera is only just closed when continuous several times low-voltage occurs in the supply voltage of web camera, from
And while protecting web camera, improve the stability of web camera operation.
Embodiment three:
Fig. 3 shows the structure of the undervoltage protection of the web camera of the offer of the embodiment of the present invention three, in order to just
In explanation, only parts related to embodiments of the present invention are shown, including:
ADC value acquiring unit 31, is monitored for the operating voltage to web camera, according to preset voltage acquisition
Frequency acquisition works as previous ADC value when previous web camera operating voltage is corresponding；
Relation determination unit 32 is compared for that will work as previous ADC value and preset low pressure ADC threshold value, when previous
When ADC value is less than the low pressure ADC threshold value, determine whether the corresponding previous ADC value of previous web camera operating voltage is less than
Low pressure ADC threshold value；
Counting unit 33 carries out counting operation to low pressure counter for being less than low pressure ADC threshold value when previous ADC value；With
And
Power switching unit 34, for obtaining the current count value of low pressure counter, when current count value reaches preset
When count threshold, the power supply of web camera is cut off.
In embodiments of the present invention, each unit of undervoltage protection can be realized by corresponding hardware or software unit,
Each unit can be independent soft and hardware unit, also can integrate as a soft and hardware unit, herein not to limit this hair
It is bright.The specific embodiment of each unit can refer to the description of embodiment one, and details are not described herein.
Example IV:
Fig. 4 shows the structure of the undervoltage protection of the web camera of the offer of the embodiment of the present invention four, in order to just
In explanation, only parts related to embodiments of the present invention are shown, including:
Parameter set unit 41, for web camera operating voltage voltage acquisition frequency and low pressure ADC threshold value into
Row setting；
Voltage monitoring unit 42, for when receive web camera starting request when, to the current of web camera
Starting voltage is monitored；
Power control unit 43, for passing through the low of web camera when being currently up voltage less than low pressure ADC threshold value
Voltage protection circuit cuts off the power supply of web camera, otherwise starts web camera；
ADC value acquiring unit 44, is monitored for the operating voltage to web camera, according to preset voltage acquisition
Frequency acquisition works as previous ADC value when previous web camera operating voltage is corresponding；
Relation determination unit 45 is compared for that will work as previous ADC value and preset low pressure ADC threshold value, when previous
When ADC value is less than low pressure ADC threshold value, determine whether the corresponding previous ADC value of previous web camera operating voltage is less than low pressure
ADC threshold value；
Counting unit 46 carries out counting operation to low pressure counter for being less than low pressure ADC threshold value when previous ADC value；With
And
Power switching unit 47, for obtaining the current count value of low pressure counter, when current count value reaches preset
When count threshold, the power supply of web camera is cut off.
In embodiments of the present invention, each unit of undervoltage protection can be realized by corresponding hardware or software unit,
Each unit can be independent soft and hardware unit, also can integrate as a soft and hardware unit, herein not to limit this hair
It is bright.The specific embodiment of each unit can refer to the description of embodiment two, and details are not described herein.
Embodiment five:
Fig. 5 show the embodiment of the present invention 5 offer web camera structure, for ease of description, illustrate only with
The relevant part of the embodiment of the present invention.
The web camera 5 of the embodiment of the present invention includes processor 50, memory 51 and is stored in memory 51 simultaneously
The computer program 52 that can be run on processor 50.The processor 50 realizes that aforementioned low-voltage is protected when executing computer program 52
Step in maintaining method embodiment, such as step S101 to S104 shown in FIG. 1.Alternatively, processor 50 executes computer program
The function of each unit in above-mentioned each Installation practice, such as the function of unit 31 to 34 shown in Fig. 3 are realized when 52.
In embodiments of the present invention, the operating voltage of web camera is monitored, according to preset voltage acquisition frequency
Rate, which is obtained, works as previous ADC value when previous web camera operating voltage is corresponding, will work as previous ADC value and preset low pressure ADC
Threshold value is compared, and when previous ADC value is less than low pressure ADC threshold value, determines that previous web camera operating voltage is corresponding
Whether previous ADC value is less than low pressure ADC threshold value, when previous ADC value be less than low pressure ADC threshold value, low pressure counter is counted
Operation obtains the current count value of low pressure counter, when current count value reaches preset count threshold, cuts off network shooting
The power supply of machine, in this way, web camera is only just closed when continuous several times low-voltage occurs in the supply voltage of web camera, from
And while protecting web camera, improve the stability of web camera operation.Processor 50 in the web camera 5
The step of realizing when realizing aforementioned method of undervoltage protection when executing computer program 52 can refer to retouching for preceding method embodiment
It states, details are not described herein.
Embodiment six:
In embodiments of the present invention, a kind of computer readable storage medium is provided, which deposits
Computer program is contained, which realizes the step in aforementioned method of undervoltage protection embodiment when being executed by processor
Suddenly, for example, step S101 to S104 shown in FIG. 1.Alternatively, the computer program realizes above-mentioned each device when being executed by processor
The function of each unit in embodiment, such as the function of unit 31 to 34 shown in Fig. 3.
In embodiments of the present invention, the operating voltage of web camera is monitored, according to preset voltage acquisition frequency
Rate, which is obtained, works as previous ADC value when previous web camera operating voltage is corresponding, will work as previous ADC value and preset low pressure ADC
Threshold value is compared, and when previous ADC value is less than low pressure ADC threshold value, determines that previous web camera operating voltage is corresponding
Whether previous ADC value is less than low pressure ADC threshold value, when previous ADC value be less than low pressure ADC threshold value, low pressure counter is counted
Operation obtains the current count value of low pressure counter, when current count value reaches preset count threshold, cuts off network shooting
The power supply of machine, in this way, web camera is only just closed when continuous several times low-voltage occurs in the supply voltage of web camera, from
And while protecting web camera, improve the stability of web camera operation.
The computer readable storage medium of the embodiment of the present invention may include can carry computer program code any
Entity or device, recording medium, for example, the memories such as ROM/RAM, disk, CD, flash memory.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of method of undervoltage protection of web camera, which is characterized in that the method includes the following steps:
The operating voltage of web camera is monitored, according to preset voltage acquisition frequency acquisition when the previous network is taken the photograph
Camera operating voltage is corresponding to work as previous ADC value；
By described when previous ADC value and preset low pressure ADC threshold value are compared, when described when previous ADC value is less than described low
When pressing ADC threshold value, determine whether the corresponding previous ADC value of the previous web camera operating voltage is less than the low pressure ADC
Threshold value；
When the previous ADC value is less than the low pressure ADC threshold value, counting operation is carried out to low pressure counter；
The current count value for obtaining the low pressure counter, when the current count value reaches preset count threshold, cutting
The power supply of the web camera；
When the previous ADC value is not less than the low pressure ADC threshold value, by the low pressure counter O reset.
2. the method as described in claim 1, which is characterized in that the method also includes:
When the starting for receiving the web camera is requested, the voltage that is currently up of the web camera is supervised
It surveys；
When it is described be currently up voltage less than the low pressure ADC threshold value when, pass through the low-voltage protection circuit of the web camera
The power supply for cutting off the web camera, otherwise starts the web camera.
3. the method as described in claim 1, which is characterized in that the voltage acquisition frequency is 1 second.
4. the method as described in claim 1, which is characterized in that the step of operating voltage of web camera is monitored it
Before, the method also includes:
The voltage acquisition frequency and the low pressure ADC threshold value are configured.
5. a kind of undervoltage protection of web camera, which is characterized in that described device includes:
ADC value acquiring unit, is monitored for the operating voltage to web camera, is obtained according to preset voltage acquisition frequency
It takes when the previous web camera operating voltage is corresponding when previous ADC value；
Relation determination unit, for by described when previous ADC value and preset low pressure ADC threshold value are compared, when described current
When secondary ADC value is less than the low pressure ADC threshold value, determine that the corresponding previous ADC value of the previous web camera operating voltage is
It is no to be less than the low pressure ADC threshold value；
Counting unit carries out counting operation to low pressure counter for being less than the low pressure ADC threshold value when the previous ADC value；
Power switching unit, for obtaining the current count value of the low pressure counter, when the current count value reaches default
Count threshold when, cut off the power supply of the web camera；And
For when the previous ADC value is not less than the low pressure ADC threshold value by the unit of the low pressure counter O reset.
6. device as claimed in claim 5, which is characterized in that described device further include:
Voltage monitoring unit, for working as to the web camera when the starting for receiving the web camera is requested
Preceding starting voltage is monitored；And
Power control unit, for when it is described be currently up voltage less than the low pressure ADC threshold value when, pass through the network shooting
The low-voltage protection circuit of machine cuts off the power supply of the web camera, otherwise starts the web camera.
7. device as claimed in claim 5, which is characterized in that the voltage acquisition frequency is 1 second.
8. device as claimed in claim 5, which is characterized in that described device further include:
Parameter set unit, for being configured to the voltage acquisition frequency and the low pressure ADC threshold value.
9. a kind of web camera, including memory, processor and storage are in the memory and can be in the processor
The computer program of upper operation, which is characterized in that the processor realized when executing the computer program as claim 1 to
The step of any one of 4 the method.
10. a kind of computer readable storage medium, the computer-readable recording medium storage has computer program, and feature exists
In when the computer program is executed by processor the step of any one of such as Claims 1-4 of realization the method.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711267701.1A CN107769154B (en) | 2017-12-05 | 2017-12-05 | Method of undervoltage protection, device, video camera and the storage medium of web camera |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711267701.1A CN107769154B (en) | 2017-12-05 | 2017-12-05 | Method of undervoltage protection, device, video camera and the storage medium of web camera |
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| CN107769154B true CN107769154B (en) | 2019-09-17 |
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| US5182583A (en) * | 1990-07-17 | 1993-01-26 | Canon Kabushiki Kaisha | Ink-jet having battery capacity detection |
| JP2004023878A (en) * | 2002-06-14 | 2004-01-22 | Yaskawa Electric Corp | Converter with power supply phase interruption detection circuit |
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| Publication number | Publication date |
|---|---|
| CN107769154A (en) | 2018-03-06 |
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