CN108600675B - Channel path number expansion method, device, network video recorder and storage medium - Google Patents
Channel path number expansion method, device, network video recorder and storage medium Download PDFInfo
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- CN108600675B CN108600675B CN201810509059.1A CN201810509059A CN108600675B CN 108600675 B CN108600675 B CN 108600675B CN 201810509059 A CN201810509059 A CN 201810509059A CN 108600675 B CN108600675 B CN 108600675B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/78—Television signal recording using magnetic recording
- H04N5/781—Television signal recording using magnetic recording on disks or drums
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
Abstract
The invention discloses a channel number expanding method of a network hard disk video recorder, which comprises the following steps: acquiring the number of devices to be accessed, which are requested to be accessed to the network video recorder; when the number to be accessed is larger than the residual channel number of the network video recorder, expanding the original channel number of the network video recorder to a preset channel number; after the original channel number is expanded to a preset channel number, the equipment to be accessed is accessed to the network video recorder, and the code stream parameters of the access equipment in the network video recorder are adjusted according to the preset channel number. The invention expands the original channel number of the network hard disk video recorder on the basis of not increasing additional hardware so as to increase the accessible number of the access equipment in the network hard disk video recorder, can meet the monitoring requirements of different users on the basis of ensuring the stability and the fluency of monitoring, and reduces the investment cost of monitoring. The invention also provides a network hard disk video recorder, a channel path number expansion device and a storage medium.
Description
Technical Field
The invention relates to the technical field of monitoring, in particular to a channel number expansion method and device of a network video recorder, the network video recorder and a storage medium.
Background
In the monitoring system, the network camera is generally accessed to the network video recorder through a network so as to convert the acquired video image into a compressed video code stream and send the compressed video code stream to the network video recorder, and the network video recorder receives the video code stream transmitted by the network camera and stores, previews, plays back and forwards the video code stream, thereby realizing the monitoring of the designated area.
The existing network hard disk video recorder generally comprises a plurality of channel paths, which can allow the network video cameras with corresponding number to be connected, but the channel paths in the existing network hard disk video recorder are generally fixed, that is, when the number of the network video cameras connected to the network hard disk video recorder reaches the channel path number, the network video cameras are not allowed to be continuously connected to other network video cameras. Therefore, when the number of the network cameras that the user needs to monitor exceeds the number of the channels of the network hard disk video recorder, the monitoring requirement can be met only by increasing the number of the network hard disk video recorders, and additional investment cost is generated.
In summary, how to expand the number of channels of the network hard disk recorder to meet the monitoring requirement of the user becomes a problem to be solved urgently by the technical personnel in the field.
Disclosure of Invention
The embodiment of the invention provides a channel number expanding method and device of a network hard disk video recorder, the network hard disk video recorder and a storage medium, which can expand the original channel number of the network hard disk video recorder on the basis of not increasing extra hardware, thereby increasing the accessible number of access devices in the network hard disk video recorder, meeting the monitoring requirements of different users on the basis of ensuring the stability and the fluency of monitoring, and reducing the investment cost of monitoring.
In a first aspect of the embodiments of the present invention, a method for expanding a channel number of a network hard disk video recorder is provided, including:
acquiring the number of devices to be accessed, which are requested to be accessed to the network video recorder;
when the number to be accessed is larger than the residual channel number of the network video recorder, expanding the original channel number of the network video recorder to a preset channel number;
and after the original channel number is expanded to the preset channel number, accessing the equipment to be accessed to the network video recorder, and adjusting the code stream parameters of the access equipment in the network video recorder according to the preset channel number.
Further, the expanding the original channel number of the network hard disk video recorder to a preset channel number includes:
sending a selection instruction for whether to expand the original channel number of the network video recorder;
receiving a reply instruction responding to the selection instruction;
and when the reply instruction is to expand the original channel number of the network video recorder to a preset channel number, expanding the original channel number of the network video recorder to the preset channel number.
Preferably, the adjusting, according to the preset channel number, a code stream parameter of an access device in the network hard disk recorder includes:
acquiring a first code stream parameter threshold corresponding to the preset channel number;
and adjusting the code stream parameters of the access equipment in the network video recorder according to the first code stream parameter threshold.
Optionally, the adjusting, according to the preset channel number, a code stream parameter of an access device in the network hard disk recorder includes:
acquiring a first access number of access devices in the network video recorder;
determining a second code stream parameter threshold corresponding to the first access number according to the preset channel number;
and adjusting the code stream parameters of the access equipment in the network video recorder according to the second code stream parameter threshold value.
Further, the method for expanding the number of channels further includes:
acquiring a first channel number recorded by a main code stream in the network video recorder;
judging whether the first channel number is greater than the original channel number of the network video recorder or not;
and when the first channel path number is greater than the original channel path number, adjusting the original main code stream memory of each channel in the network video recorder according to the first channel path number.
Preferably, after adjusting the original main code stream memory of each channel in the network hard disk recorder according to the first channel number, the method further includes:
acquiring a second channel number of a main code stream video in the network video recorder;
judging whether the number of the second channels is less than or equal to the number of the original channels of the network video recorder;
and when the number of the second channels is less than or equal to the number of the original channels, restoring the original main code stream memory of each channel in the network video recorder.
Optionally, the method for expanding the number of channels further includes:
acquiring a second access number of access devices in the network video recorder and an original code stream parameter of each access device;
judging whether the second access number is less than or equal to the original channel number of the network video recorder or not;
and if the second access number is less than or equal to the original channel number, restoring the code stream parameters of each access device in the network video recorder to the original code stream parameters.
Further, the method for expanding the number of channels further includes:
acquiring the preview position of each access device in the network video recorder in a preview interface;
determining a maximum position value according to the preview position, and determining the maximum position value as the picture segmentation number of the preview interface;
and dividing the preview interface based on the image division number, and displaying the monitoring image of the corresponding access equipment in the divided image window.
In a second aspect of the embodiments of the present invention, a network hard disk video recorder is provided, including:
the device comprises a to-be-accessed number acquisition module, a to-be-accessed number acquisition module and a to-be-accessed number acquisition module, wherein the to-be-accessed number acquisition module is used for acquiring the to-be-accessed number of the to-be-accessed device which requests to be accessed to the network video recorder;
the channel path number expansion module is used for expanding the original channel path number of the network video recorder to a preset channel path number when the number to be accessed is larger than the residual channel path number of the network video recorder;
and the code stream parameter adjusting module is used for accessing the equipment to be accessed to the network video recorder after the original channel number is expanded to the preset channel number, and adjusting the code stream parameters of the access equipment in the network video recorder according to the preset channel number.
In a third aspect of the embodiments of the present invention, there is provided a channel number expansion device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor implements the steps of the channel number expansion method according to the first aspect when executing the computer program.
In a fourth aspect of embodiments of the present invention, a computer-readable storage medium is provided, where a computer program is stored, and when the computer program is executed by a processor, the steps of the channel number expansion method according to the first aspect are implemented.
According to the technical scheme, the embodiment of the invention has the following advantages:
in the embodiment of the invention, when the number of the devices to be accessed, which are requested to be accessed to the network video recorder, is detected to exceed the number of the remaining channels of the network video recorder, the original channel number of the network video recorder is expanded to the preset channel number, and the expansion requirement of the network video recorder is met by adjusting the code stream parameters of the access devices in the network video recorder, so that the original channel number of the network video recorder can be expanded on the basis of not increasing extra hardware, the accessible number of the access devices in the network video recorder is increased, different monitoring requirements of users can be met on the basis of ensuring the stability and the fluency of monitoring, and the investment cost of monitoring is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a flowchart of a method for expanding a channel number of a network hard disk recorder according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a channel number expansion method in an application scenario according to a first embodiment of the present invention;
fig. 3 is a schematic flow chart of a channel number expansion method in another application scenario according to an embodiment of the present invention;
fig. 4 is a schematic flow chart illustrating a method for expanding the number of channels according to an embodiment of the present invention to restore an original code stream parameter in an application scenario;
fig. 5 is a schematic structural diagram of a network hard disk recorder according to a second embodiment of the present invention;
fig. 6 is a schematic diagram of a channel number expansion device according to a third embodiment of the present invention.
Detailed Description
The embodiment of the invention provides a channel number expanding method and device of a network hard disk video recorder, the network hard disk video recorder and a storage medium, which are used for expanding the original channel number of the network hard disk video recorder on the basis of not increasing extra hardware, so that the accessible number of access devices in the network hard disk video recorder is increased, the monitoring requirements of different users are met on the basis of ensuring the stability and the fluency of monitoring, and the investment cost of monitoring is reduced.
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a method for expanding a channel number of a network hard disk recorder according to an embodiment of the present invention includes:
and S101, acquiring the number of devices to be accessed, which request to be accessed to the network video recorder.
It can be understood that, when a user wants to add a network camera to wait for an access device to monitor more areas, the user may send an access request to the network hard disk recorder to obtain a monitoring picture of a monitored area through the network hard disk recorder, and the network hard disk recorder may receive the access request and count the number of devices to be accessed, which are added by the user when requesting the access request, according to the access request.
And S102, when the number to be accessed is larger than the residual channel number of the network video recorder, expanding the original channel number of the network video recorder to a preset channel number.
In this embodiment, after the network hard disk video recorder counts the number of devices to be accessed, which is requested to be added by the user at the current time, to be accessed, it is immediately determined whether the number of the devices to be accessed is greater than the number of idle remaining channels in the network hard disk video recorder, and if the number of the devices to be accessed, which is requested to be added by the user, is less than or equal to the number of the remaining channels, the devices to be accessed, which are requested to be added by the user, are directly accessed into the network hard disk video; if the number to be accessed is larger than the remaining channel number, it indicates that the original channel number of the network hard disk video recorder cannot meet the current increase request of the user, and if the increase request of the user needs to be met, the original channel number of the network hard disk video recorder needs to be expanded, so that the original channel number of the network hard disk video recorder can be directly expanded to the preset channel number at this time.
Further, in this embodiment, when the number to be accessed is greater than the remaining channel number, it may be further determined whether to expand the channel number according to a user's requirement, that is, in this embodiment, expanding the original channel number of the network hard disk recorder to a preset channel number specifically includes: step a, sending a selection instruction for expanding the original channel number of the network video recorder; step b, receiving a reply instruction responding to the selection instruction; and c, when the reply instruction is to expand the original channel number of the network video recorder to a preset channel number, expanding the original channel number of the network video recorder to the preset channel number.
For the step a, it can be understood that, when the number to be accessed is greater than the remaining channel number and the original channel number of the network hard disk video recorder needs to be expanded, a selection instruction of whether to expand the original channel number of the network hard disk video recorder can be sent to a user. In this embodiment, the selection instruction may be a confirmation instruction for determining whether to expand the original channel number of the network hard disk recorder to the preset channel number, or may be a selection instruction including multiple preset channel number selections.
If the network hard disk video recorder with the original channel number of 4 and the expandable preset channel number of 8 has added 2 network cameras, and the user requests to add 3 network cameras again, the network hard disk video recorder can send a confirmation instruction whether to expand to 8 channels to the user; for the network hard disk video recorder with the original channel number of 4 and the expandable preset channel number of 8, 10 and 16, after 2 network cameras are added, when the user requests to add 3 network cameras again, the network hard disk video recorder can directly send a confirmation instruction whether to expand to 8 channels or directly send a confirmation instruction whether to expand to 10 channels or directly send a confirmation instruction whether to expand to 16 channels, of course, the network hard disk video recorder can also send a selection instruction containing three choices of 8, 10 and 16 to the user, and the user selects one of the choices.
For the step b, it can be understood that, after the selection instruction of whether to expand the original channel number of the network hard disk video recorder is sent to the user, the user can make a reply instruction of whether to expand the original channel number of the network hard disk video recorder based on the selection instruction. If the selection instruction is a confirmation instruction for judging whether the original channel number of the network hard disk video recorder is expanded to the preset channel number, the user can make an expanded positive reply instruction based on the selection instruction and can also make a non-expanded negative reply instruction; when the selection instruction comprises a selection instruction for selecting a plurality of preset channel paths, the user can select one of the reply instructions or can select none of the negative reply instructions. The network hard disk video recorder can receive a reply instruction made by the user aiming at the selection instruction.
For the step c, it can be understood that, after receiving the reply instruction of the user, the network hard disk video recorder may determine whether the user needs to expand the original channel number of the network hard disk video recorder according to the reply instruction, and if it is determined that the original channel number of the network hard disk video recorder needs to be expanded, expand the original channel number of the network hard disk video recorder to the preset channel number according to the reply instruction; and if the user does not need to expand the original channel number of the network hard disk video recorder, rejecting the increase request of the user.
Here, the sum of the number of channels that can be expanded and the number of remaining channels should be greater than the number of devices to be accessed, that is, the sum of the number of devices to be accessed and the number of devices to be accessed that have been successfully accessed into the network video recorder before the devices to be accessed request access should be less than the preset number of channels, so as to ensure that the devices to be accessed that request access can all be accessed to the network video recorder after the devices to be accessed are expanded to the preset number of channels. In addition, when the sum of the number of channels that can be expanded and the number of remaining channels is less than the number of devices to be accessed, that is, the sum of the number of devices to be accessed and the number of devices to be accessed is greater than the preset number of channels, it is indicated that the network video recorder that has been expanded to the maximum number of channels still cannot meet the access request of all the devices to be accessed of the user at this time, a selection instruction for adding the devices to be accessed may be sent to the user, and the user determines which devices to be accessed are accessed into the network video recorder, or the network video recorder may directly access the devices to be accessed that are sorted in the front according to a preset sorting policy.
Step S103, after the original channel number is expanded to the preset channel number, the device to be accessed is accessed to the network video recorder, and the code stream parameter of the access device in the network video recorder is adjusted according to the preset channel number.
It can be understood that, in this embodiment, after the original channel number of the network hard disk recorder is expanded to the preset channel number, the device to be accessed is accessed to the network hard disk recorder, and a code stream parameter of the access device in the network hard disk recorder is adjusted according to the preset channel number, where the access device includes the device to be accessed which is just successfully accessed and the access device which has been accessed before, and the code stream parameter includes resolution, code rate, frame rate, and the like. The adjustment of the code stream parameter of the access device may be one of the adjustment of resolution, code rate and frame rate, or two or three of them may be adjusted simultaneously.
Further, fig. 2 shows a flow chart of a channel number expansion method in an application scenario in the embodiment of the present invention. As shown in fig. 2, in this scenario, the method for expanding the number of channels includes step S201, step S202, step S203, step S204, and step S205.
Step S201, obtaining the number of devices to be accessed, which are requested to be accessed to the network video recorder, to be accessed is similar to the step S101; step S202, when the number to be accessed is larger than the remaining channel number of the network video recorder, expanding the original channel number of the network video recorder to a preset channel number, which is similar to the step S102; step S203, after the original channel number is expanded to the preset channel number, accessing the device to be accessed to the network hard disk recorder is similar to step S103, and for the sake of brevity, details are not repeated here.
Step S204, acquiring a first code stream parameter threshold corresponding to the preset channel number;
and S205, adjusting the code stream parameters of the access equipment in the network video recorder according to the first code stream parameter threshold value.
In this scenario, a code stream parameter threshold corresponding to the network hard disk video recorder in different channel numbers may be set in advance through a test, where the code stream parameter threshold is an upper limit of a code stream parameter allowed when an access device such as a network camera is accessed to the network hard disk video recorder, and includes an upper limit of a resolution ratio, an upper limit of a code rate, and an upper limit of a frame rate. If the resolution upper limit value corresponding to the network hard disk video recorder with 8 paths is 300w through the test, the resolutions of all the network cameras connected into the network hard disk video recorder cannot be set to be higher than 300 w.
It can be understood that, in this scenario, when an access device such as a network camera is added to the network hard disk video recorder, the network hard disk video recorder may obtain a code stream parameter of each access device, that is, a code stream parameter configured when the access device requests to access the network hard disk video recorder.
As for the above step S204 and step S205, it can be understood that after the original channel number is expanded to the preset channel number, the device to be accessed which requests to access is accessed into the original channel number. After all the devices to be accessed are successfully accessed, the Network hard disk Video recorder can obtain a first code stream parameter threshold corresponding to the devices to be accessed when the devices are in the preset channel number, and then the code stream parameters exceeding the first code stream parameter threshold in each access device can be adjusted to be the first code stream parameter threshold through an onvif (Open Network Video Interface Forum) protocol or a private protocol, so that the stability, the smoothness and the good monitoring effect of the operation of the Network hard disk Video recorder after the Network hard disk Video recorder is expanded to the preset channel number can be ensured by reducing the code stream parameters of the access devices, meanwhile, the automatic configuration of the code stream parameters can be realized, and the manual configuration work of users can be reduced.
Furthermore, in this scenario, after the device to be accessed successfully accesses the network hard disk video recorder, the code stream parameters of all the access devices can be checked in the code stream setting interface of the network hard disk video recorder, and the code stream parameters of each access device can be adjusted in the code stream setting interface. When the network video recorder is in a mode of expanding to the preset channel number, the adjustment of the code stream parameters of the access device needs to be lower than a first code stream parameter threshold corresponding to the expanded network video recorder, namely, only an option lower than or equal to the first code stream parameter threshold is displayed in a code stream setting interface of the network video recorder for a user to adjust, so that the running stability of the network video recorder is ensured.
For example, the resolutions supported by a certain access device are 100w, 200w, 300w, 400w and 1200w, and the resolution threshold of the network video recorder after being expanded to the preset number of channels is 300w, at this time, only the resolutions of 100w, 200w and 300w are displayed in the code stream setting interface of the network video recorder for the user to select and adjust, and of course, the user can also configure the resolution lower than 300w for the access device in a self-defined manner according to the resolution threshold.
Preferably, fig. 3 shows a flow chart of a channel number expansion method in another application scenario in the embodiment of the present invention. As shown in fig. 3, in this scenario, the method for expanding the number of channels includes step S301, step S302, step S303, step S304, step S305, and step S306.
S301, acquiring the number of devices to be accessed, which request to be accessed to the network video recorder, to be accessed is similar to the step S201; step S302, when the number to be accessed is larger than the residual channel number of the network video recorder, expanding the original channel number of the network video recorder to a preset channel number, which is similar to the step S202; step S303, after the original channel number is expanded to the preset channel number, accessing the device to be accessed to the network video recorder is similar to the step S203; for the sake of brevity, no further description is provided herein.
Step S304, acquiring a first access number of access devices in the network video recorder;
step S305, determining a second code stream parameter threshold corresponding to the first access number according to the preset channel number;
and S306, adjusting the code stream parameters of the access equipment in the network video recorder according to the second code stream parameter threshold value.
In this scenario, it can be understood that different channel levels may be set between the original channel number of the network hard disk recorder and the expanded preset channel number, and the code stream parameter thresholds corresponding to the different channel levels may be set in advance through testing. When all the devices to be accessed are successfully accessed, the network video recorder can obtain the first access number of all the access devices, determine the channel grade of the access channel number in the network video recorder according to the first access number, and then adjust the code stream parameters of the access devices in the network video recorder according to the second code stream parameter threshold corresponding to the channel grade. Specifically, the codestream parameter exceeding the second codestream parameter threshold in each access device may be adjusted to the second codestream parameter threshold by the onvif protocol or the private protocol.
For example, for a network hard disk recorder with an original channel number of 4, when the expanded preset channel number is 10, 5 and 6 channels may be set as a first channel level, 7 and 8 channels may be set as a second channel level, and 9 and 10 channels may be set as a third channel level, and a code stream parameter threshold a corresponding to the first channel level, a code stream parameter threshold B corresponding to the second channel level, and a code stream parameter threshold C corresponding to the third channel level are set. When a certain network hard disk video recorder is accessed with 5 network cameras, the code stream parameters in the 5 network cameras exceeding the code stream parameter threshold A can be reduced to be the code stream parameter threshold A through an onvif protocol or a private protocol; when a certain network hard disk video recorder is accessed with 9 network cameras, the code stream parameters in the 9 network cameras exceeding the code stream parameter threshold value C can be reduced to the code stream parameter threshold value C through the onvif protocol or the private protocol, so that the stability, the fluency and the good monitoring effect of the operation of the network hard disk video recorder after the network hard disk video recorder is expanded to the preset channel number are ensured, meanwhile, the automatic configuration of the code stream parameters can be realized, and the manual configuration work of a user is reduced.
In this scenario, the code stream parameter of the access device is not directly adjusted according to the first code stream parameter threshold corresponding to the preset channel number, but the second code stream parameter threshold corresponding to the preset channel number is determined according to the actual access number of the access device, so that the code stream parameter of the access device is adjusted according to the second code stream parameter threshold, which not only ensures that more access devices are accessed, but also further ensures that the access device has a better monitoring effect.
Furthermore, in this scenario, after the device to be accessed successfully accesses the network hard disk video recorder, the code stream parameters of all the access devices can be checked in the code stream setting interface of the network hard disk video recorder, and the code stream parameters of each access device can be adjusted in the code stream setting interface. When the network video recorder is in a mode of expanding to the preset channel number, the adjustment of the code stream parameters of the access device needs to be lower than a second code stream parameter threshold corresponding to the channel level where the access channel number is currently located in the network video recorder, namely, only options lower than or equal to the second code stream parameter threshold are displayed in a code stream setting interface of the network video recorder for a user to adjust, so that the running stability of the network video recorder is ensured.
If the resolutions supported by a certain access device are 100w, 200w, 300w, 400w and 1200w, 7 access devices are accessed in the expanded network hard disk video recorder, and the resolution threshold corresponding to the channel level where the 7 access devices are currently located is 300w, only the resolutions of 100w, 200w and 300w are displayed in the code stream setting interface of the network hard disk video recorder for the user to select and adjust, and certainly, the user can configure the resolution lower than 300w for the access device by self-defining according to the 300w resolution threshold.
Optionally, to further reduce the memory pressure after the network hard disk recorder is expanded, the method for expanding the number of channels provided in this embodiment further includes: d, acquiring the number of first channels recorded by the main code stream in the network hard disk video recorder: step e, judging whether the first channel path number is larger than the original channel path number of the network video recorder; and f, when the first channel path number is larger than the original channel path number, adjusting the original main code stream memory of each channel in the network hard disk video recorder according to the first channel path number. The original main code stream memory is the initial main code stream memory size of each channel in the network hard disk video recorder when the channel path number expansion is not carried out.
Here, in the channel path number expansion method provided in this embodiment, when an access device is added to the network hard disk recorder, a channel data buffer module in the network hard disk recorder may check an access condition of the access device in each channel of the network hard disk recorder in real time, and if a video mode of the access device is a main stream video recording or a sub stream video recording, count channel paths recorded with the main stream, and determine whether the channel path number is greater than an original channel path number of the network hard disk recorder, and when the channel path number is greater than the original channel path number, adjust an original main stream memory of all channels recorded with the sub stream video recording according to the channel path number, where all the channels include a channel recorded with the main stream, a channel recorded with the sub stream, and a channel not connected with the access device. That is to say, after the number of channel paths of the network hard disk video recorder is expanded, the channel data buffer module in the network hard disk video recorder can automatically adjust the original main code stream memory of each channel according to the number of channel paths of the main code stream video in the network hard disk video recorder, for example, the original main code stream memory of each channel is reduced by a preset amount, so as to reduce the memory pressure after the network hard disk video recorder is expanded, thereby improving the stability of the operation of the network hard disk video recorder after the network hard disk video recorder is expanded.
Further, the method for expanding the number of channels provided in this embodiment further includes: step g, acquiring the number of second channels recorded by the main code stream in the network hard disk video recorder; h, judging whether the number of the second channels is less than or equal to the number of the original channels of the network video recorder; and i, when the number of the second channels is less than or equal to the number of the original channels, restoring the original main code stream memory of each channel in the network video recorder.
It can be understood that, in this embodiment, when the number of access devices for recording with the main code stream in the expanded network hard disk recorder is reduced and the number of channels for recording with the main code stream is less than or equal to the number of original channels of the network hard disk recorder, the channel data buffer module in the network hard disk recorder restores the main code stream memory in each channel to the original main code stream memory, thereby implementing adaptive adjustment of the main code stream memory in the network hard disk recorder, reducing manual configuration work, and optimizing image quality in real time.
Preferably, as shown in fig. 4, when the access devices of the network hard disk recorder are reduced, the method for expanding the number of channels further includes:
s401, acquiring a second access number of access devices in the network video recorder and an original code stream parameter of each access device;
step S402, judging whether the second access number is less than or equal to the original channel number of the network video recorder;
and S403, if the second access number is less than or equal to the original channel number, restoring the code stream parameters of each access device in the network video recorder to the original code stream parameters.
It can be understood that, in this embodiment, when the access device is accessed to the network hard disk recorder, the network hard disk recorder may obtain and store the original code stream parameter of the access device. When the number of the access devices in the expanded network video recorder is reduced and the access number of the reduced access devices is less than or equal to the number of the original channels of the network video recorder, the network video recorder can automatically restore the code stream parameters of the rest access devices to the original code stream parameters, thereby realizing the self-adaptive adjustment of the code stream parameters, reducing the manual configuration work and optimizing the monitoring effect of the access devices in real time.
In this embodiment, in order to further ensure the stability of the operation of the network hard disk video recorder after the extension, the pre-recording function of the network hard disk video recorder may be turned off when the network hard disk video recorder extends to the preset channel number.
Optionally, the channel number expansion method in this embodiment may further automatically adjust the number of image splits in the preview interface according to the access device in the network hard disk video recorder, so as to ensure that the monitoring images of all the access devices can be previewed simultaneously. Specifically, the method for expanding the number of channels further includes: step j, acquiring the preview position of each access device in the network video recorder in a preview interface; k, determining a maximum position value according to the preview position, and determining the maximum position value as the image segmentation number of the preview interface; and step l, dividing the preview interface based on the image division number, and displaying the monitoring image of the corresponding access equipment in the divided image window. The preview position refers to a numerical value corresponding to each screen window in the preview interface, and if 8 screen windows exist in the preview interface of a certain network hard disk video recorder, the preview position can be 1, 2, 3, 4, 5, 6, 7 and 8.
It can be understood that, when a user adds an access device to the network hard disk recorder, the user may configure a preview position of the access device in a preview interface of the network hard disk recorder, and after the access device is successfully accessed, a monitoring screen of the access device may be displayed at the preview position. In this embodiment, when the number of access devices in the network video recorder changes, the network video recorder may automatically reset the number of image splits of the preview interface according to the maximum position value after the number changes.
For example, in a specific application, initially, 8 preview positions in a preview interface of the network hard disk recorder are provided, wherein the preview position 1 is connected with the network camera a, the preview position 2 is connected with the network camera B, the preview position 3 is connected with the network camera C, the preview position 4 is connected with the network camera D, the preview position 5 is connected with the network camera E, the preview position 6 is connected with the network camera F, the preview position 7 is connected with the network camera G, and the preview position 8 is connected with the network camera H, and then the network camera B, the network camera G and the network camera H are deleted by a user, so that the network cameras are not connected in the preview positions 2, 7 and 8, that the maximum position value of the currently connected network camera in the network hard disk recorder is known to be 6, and therefore, the network hard disk recorder can divide the preview interface into 6 picture windows to display a monitoring picture, on the basis of ensuring that all monitoring pictures are previewed at the same time, a good monitoring effect is further ensured.
In the embodiment of the invention, when the number of the devices to be accessed, which are requested to be accessed to the network video recorder, is detected to exceed the number of the remaining channels of the network video recorder, the number of the channels of the network video recorder is expanded to the preset number of the channels, and the expansion requirement of the network video recorder is met by adjusting the code stream parameters of the access devices in the network video recorder, so that the original number of the channels of the network video recorder can be expanded on the basis of not increasing extra hardware, the accessible number of the access devices in the network video recorder is increased, different monitoring requirements of users can be met on the basis of ensuring stable and smooth monitoring, and the investment cost of the monitoring is reduced.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
The channel number expansion method of the network hard disk video recorder is mainly described above, and a detailed description will be given below for the network hard disk video recorder.
As shown in fig. 5, a second embodiment of the present invention provides a network hard disk video recorder, where the network hard disk video recorder includes:
a number-to-be-accessed acquiring module 501, configured to acquire the number of devices to be accessed, which request to access the network video recorder;
a channel number expanding module 502, configured to expand an original channel number of the network hard disk video recorder to a preset channel number when the number to be accessed is greater than the remaining channel number of the network hard disk video recorder;
a code stream parameter adjusting module 503, configured to access the device to be accessed to the network hard disk recorder after the original channel number is expanded to the preset channel number, and adjust a code stream parameter of an access device in the network hard disk recorder according to the preset channel number.
Further, the channel number expanding module 502 includes:
the selection instruction sending unit is used for sending a selection instruction for whether to expand the original channel number of the network video recorder;
a reply instruction receiving unit for receiving a reply instruction in response to the selection instruction;
and the channel path number expansion unit is used for expanding the original channel path number of the network hard disk video recorder to a preset channel path number when the reply instruction is to expand the original channel path number of the network hard disk video recorder to the preset channel path number.
Preferably, the code stream parameter adjusting module 503 includes:
a first code stream parameter threshold value obtaining unit, configured to obtain a first code stream parameter threshold value corresponding to the preset channel number;
and the first code stream parameter adjusting unit is used for adjusting the code stream parameters of the access equipment in the network video recorder according to the first code stream parameter threshold value.
Optionally, the code stream parameter adjusting module 503 includes:
a first access number obtaining unit, configured to obtain a first access number of access devices in the network hard disk recorder;
a second code stream parameter threshold determining unit, configured to determine, according to the preset channel number, a second code stream parameter threshold corresponding to the first access number;
and the second code stream parameter adjusting unit is used for adjusting the code stream parameters of the access equipment in the network video recorder according to the second code stream parameter threshold value.
Further, the network hard disk video recorder further comprises:
the first channel path number acquisition module is used for acquiring a first channel path number recorded by a main code stream in the network video recorder;
the first channel path number judging module is used for judging whether the first channel path number is greater than the original channel path number of the network video recorder or not;
and the main code stream memory adjusting module is used for adjusting the original main code stream memory of each channel in the network hard disk video recorder according to the first channel path number when the first channel path number is greater than the original channel path number.
Preferably, the network hard disk recorder further includes:
the second channel number acquisition module is used for acquiring the second channel number recorded by the main code stream in the network hard disk video recorder;
the second channel number judging module is used for judging whether the second channel number is less than or equal to the original channel number of the network video recorder;
and the main code stream memory recovery module is used for recovering the original main code stream memory of each channel in the network video recorder when the number of the second channel is less than or equal to the number of the original channel.
Optionally, the network hard disk recorder further includes:
the original code stream parameter acquisition module is used for acquiring a second access number of the access equipment in the network hard disk video recorder and an original code stream parameter of each access equipment;
the access number judging module is used for judging whether the second access number is less than or equal to the original channel number of the network video recorder;
and the original code stream parameter recovery module is used for recovering the code stream parameters of the access equipment in the network video recorder to the original code stream parameters if the second access number is less than or equal to the original channel number.
Further, the network hard disk video recorder further comprises:
the preview position acquisition module is used for acquiring the preview position of each access device in the network video recorder in a preview interface;
the image segmentation number determining module is used for determining a maximum position value according to the preview position and determining the maximum position value as the image segmentation number of the preview interface;
and the monitoring picture display module is used for dividing the preview interface based on the picture division number and displaying the monitoring picture corresponding to the access equipment in the divided picture window.
Fig. 6 is a schematic diagram of a channel number expansion device according to a third embodiment of the present invention. As shown in fig. 6, the channel number expansion apparatus 600 of this embodiment includes: a processor 601, a memory 602, and a computer program 603, such as a channel number expansion program, stored in the memory 602 and executable on the processor 601. The processor 601, when executing the computer program 603, implements the steps in the above-described embodiments of the channel number expansion method, such as the steps S101 to S103 shown in fig. 1. Alternatively, the processor 601, when executing the computer program 603, implements the functions of each module/unit in the above-described device embodiments, for example, the functions of the modules 501 to 503 shown in fig. 5.
Illustratively, the computer program 603 may be partitioned into one or more modules/units that are stored in the memory 602 and executed by the processor 601 to implement the present invention. The one or more modules/units may be a series of computer program instruction segments capable of performing specific functions, which are used to describe the execution process of the computer program 603 in the channel number expansion apparatus 600. For example, the computer program 603 may be divided into a to-be-accessed number obtaining module, a channel number expanding module, and a code stream parameter adjusting module, where the specific functions of each module are as follows:
the device comprises a to-be-accessed number acquisition module, a to-be-accessed number acquisition module and a to-be-accessed number acquisition module, wherein the to-be-accessed number acquisition module is used for acquiring the to-be-accessed number of the to-be-accessed device which requests to be accessed to the network video recorder;
the channel path number expansion module is used for expanding the original channel path number of the network video recorder to a preset channel path number when the number to be accessed is larger than the residual channel path number of the network video recorder;
and the code stream parameter adjusting module is used for accessing the equipment to be accessed to the network video recorder after the original channel number is expanded to the preset channel number, and adjusting the code stream parameters of the access equipment in the network video recorder according to the preset channel number.
The channel number expansion device 600 may be a desktop computer, a notebook, a palm computer, a cloud server, or other computing devices. The channel number expansion apparatus 600 may include, but is not limited to, a processor 601 and a memory 602. Those skilled in the art will appreciate that fig. 6 is merely an example of the channel number expansion apparatus 600, and does not constitute a limitation to the channel number expansion apparatus 600, and may include more or less components than those shown, or combine some components, or different components, for example, the channel number expansion apparatus 600 may further include an input/output device, a network access device, a bus, etc.
The Processor 601 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 602 may be an internal storage unit of the channel number expansion apparatus 600, such as a hard disk or a memory of the channel number expansion apparatus 600. The memory 602 may also be an external storage device of the channel number expansion device 600, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, which are equipped on the channel number expansion device 600. Further, the memory 602 may also include both an internal storage unit and an external storage device of the channel number expansion device 600. The memory 602 is used to store the computer program and other programs and data required by the channel number expansion apparatus 600. The memory 602 may also be used to temporarily store data that has been output or is to be output.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Those of ordinary skill in the art would appreciate that the modules, elements, and/or method steps of the various embodiments described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow of the method according to the embodiments of the present invention may also be implemented by a computer program, which may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method embodiments may be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, etc. It should be noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals as is required by legislation and patent practice.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A channel number expanding method of a network hard disk video recorder is characterized by comprising the following steps:
acquiring the number of devices to be accessed, which are requested to be accessed to the network video recorder;
when the number to be accessed is larger than the residual channel number of the network video recorder, expanding the original channel number of the network video recorder to a preset channel number;
if the sum of the access number of the accessed equipment and the number to be accessed is less than or equal to the preset channel number, after the original channel number is expanded to the preset channel number, accessing the equipment to be accessed to the network video recorder;
if the sum of the access number of the accessed equipment and the number to be accessed is greater than the preset channel number, selecting the equipment to be accessed, and after the original channel number is expanded to the preset channel number, accessing the selected part of the equipment to be accessed to the network video recorder;
and adjusting the code stream parameters of the access equipment in the network video recorder according to the code stream parameter threshold corresponding to the preset channel number.
2. The channel number expansion method according to claim 1, wherein expanding the original channel number of the network hard disk recorder to a preset channel number comprises:
sending a selection instruction for whether to expand the original channel number of the network video recorder;
receiving a reply instruction responding to the selection instruction;
and when the reply instruction is to expand the original channel number of the network video recorder to a preset channel number, expanding the original channel number of the network video recorder to the preset channel number.
3. The method for expanding the channel number according to claim 1, wherein the adjusting the code stream parameter of the access device in the network hard disk recorder according to the code stream parameter threshold corresponding to the preset channel number comprises:
acquiring a first access number of access devices in the network video recorder;
determining a second code stream parameter threshold corresponding to the first access number according to the preset channel number;
and adjusting the code stream parameters of the access equipment in the network video recorder according to the second code stream parameter threshold value.
4. The method for expanding the number of lanes of claim 1, further comprising:
acquiring a first channel number recorded by a main code stream in the network video recorder;
judging whether the first channel number is greater than the original channel number of the network video recorder or not;
and when the first channel path number is greater than the original channel path number, adjusting the original main code stream memory of each channel in the network video recorder according to the first channel path number.
5. The method of claim 4, wherein after adjusting the memory of the original main code stream of each channel in the network hard disk recorder according to the first channel number, the method further comprises:
acquiring the number of second channels recorded by the main code stream in the network video recorder;
judging whether the number of the second channels is less than or equal to the number of the original channels of the network video recorder;
and when the number of the second channels is less than or equal to the number of the original channels, restoring the original main code stream memory of each channel in the network video recorder.
6. The method for expanding the number of lanes of claim 1, further comprising:
acquiring a second access number of access devices in the network video recorder and an original code stream parameter of each access device;
judging whether the second access number is less than or equal to the original channel number of the network video recorder or not;
and if the second access number is less than or equal to the original channel number, restoring the code stream parameters of each access device in the network video recorder to the original code stream parameters.
7. The channel number expansion method according to any one of claims 1 to 6, further comprising:
acquiring the preview position of each access device in the network video recorder in a preview interface;
determining a maximum position value according to the preview position, and determining the maximum position value as the picture segmentation number of the preview interface;
and dividing the preview interface based on the image division number, and displaying the monitoring image of the corresponding access equipment in the divided image window.
8. A network video recorder, comprising:
the device comprises a to-be-accessed number acquisition module, a to-be-accessed number acquisition module and a to-be-accessed number acquisition module, wherein the to-be-accessed number acquisition module is used for acquiring the to-be-accessed number of the to-be-accessed device which requests to be accessed to the network video recorder;
the channel path number expansion module is used for expanding the original channel path number of the network video recorder to a preset channel path number when the number to be accessed is larger than the residual channel path number of the network video recorder;
a code stream parameter adjusting module, configured to access the device to be accessed to the network hard disk video recorder after the original channel number is expanded to the preset channel number if a sum of the access number of the accessed device and the number to be accessed is less than or equal to the preset channel number; if the sum of the access number of the accessed equipment and the number to be accessed is greater than the preset channel number, selecting the equipment to be accessed, and after the original channel number is expanded to the preset channel number, accessing the selected part of the equipment to be accessed to the network video recorder; and adjusting the code stream parameters of the access equipment in the network video recorder according to the code stream parameter threshold corresponding to the preset channel number.
9. A channel number expansion apparatus comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the channel number expansion method according to any one of claims 1 to 7 when executing the computer program.
10. A computer-readable storage medium, in which a computer program is stored, which, when being executed by a processor, carries out the steps of the method for expanding the number of channels according to any one of claims 1 to 7.
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| CN110944213B (en) * | 2019-11-26 | 2021-09-10 | 浙江大华技术股份有限公司 | Code stream adjusting method and device and computer storage medium |
| CN113473041A (en) * | 2020-03-30 | 2021-10-01 | 杭州海康威视数字技术股份有限公司 | Method for processing ultra-high-definition analog video image and hard disk video recording equipment |
| CN112911226B (en) * | 2021-01-19 | 2023-04-25 | 浙江大华技术股份有限公司 | Method, system and storage medium for automatically adding network camera |
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