CN110149502B - Wireless cascade security monitoring method adopting virtual router - Google Patents
Wireless cascade security monitoring method adopting virtual router Download PDFInfo
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- CN110149502B CN110149502B CN201910480511.0A CN201910480511A CN110149502B CN 110149502 B CN110149502 B CN 110149502B CN 201910480511 A CN201910480511 A CN 201910480511A CN 110149502 B CN110149502 B CN 110149502B
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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 wireless cascade security monitoring method adopting a virtual router, which comprises the following steps: after the video recorder is started, the video recorder is in communication connection with each wireless camera; the video recorder sets the working mode of each connected wireless camera according to the signal connection quality of each wireless camera; and the wireless camera is directly in communication connection with the video recorder or in communication connection with the video recorder through other wireless cameras according to the set working mode. According to the communication quality difference caused by the difference between the distance and the close distance of the wireless camera and the video recorder, the wireless camera with the close distance and better signal is used as a virtual router; and the wireless camera with longer distance and poorer signal is firstly connected to the virtual router and is wirelessly cascaded to the video recorder, and the video recorder allocates different flow bandwidth priorities to the wireless cameras of different links according to different working modes of the wireless camera, so that smoother video viewing and video storage are realized.
Description
Technical Field
The invention relates to the technical field of security, in particular to a wireless cascade security monitoring method adopting a virtual router.
Background
A set of household security monitoring system generally adopts devices such as a camera, a video recorder and the like. The traditional monitoring system needs to be installed by adopting coaxial lines or network cables and the like, so that the appearance is influenced, the construction is complex, and the labor is consumed. By adopting the WiFi wireless monitoring camera and the WiFi routing video recorder, the wiring disorder, the installation cost and the labor cost are avoided, so that the professional security monitoring can enter the civil consumption market. However, due to the limited WiFi transmission distance, the same frequency interference is easily caused, and the signal attenuation is obvious when the obstacle is encountered, so that the application range of the WiFi monitoring system is greatly limited.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, one objective of the present invention is to provide a wireless cascade security monitoring method using a virtual router.
In order to achieve the above object, an embodiment of the present invention provides a wireless cascade security monitoring method using a virtual router, where the wireless cascade security monitoring method using a virtual router includes:
after the video recorder is started, the video recorder is in communication connection with each wireless camera;
the video recorder sets the working mode of each connected wireless camera according to the signal connection quality of each wireless camera;
and the wireless camera is directly in communication connection with the video recorder or in communication connection with the video recorder through other wireless cameras according to the set working mode.
Further, according to an embodiment of the present invention, the method for determining the quality of the signal connection includes the steps of: the video recorder judges the signal connection quality by detecting the wireless signal intensity of the wireless camera.
Further, according to an embodiment of the present invention, the method for determining the quality of the signal connection further includes: the video recorder judges the signal connection quality by detecting the packet loss rate of the data transmission of the wireless camera.
Further, according to an embodiment of the present invention, the packet loss rate of the data transmission is specifically a packet loss rate of video data transmission.
Further, according to an embodiment of the present invention, the method for setting the operating mode of each connected wireless camera by the video recorder according to the signal connection quality of each wireless camera includes the steps of:
the video recorder sets a dual mode for the wireless camera working mode with better signal connection quality;
the video recorder sets the working mode of the wireless video camera with poor signal connection quality to be a cascade mode.
Further, according to an embodiment of the present invention, the method for connecting the wireless camera to the video recorder in direct communication or in communication with the video recorder through another camera according to the set operation mode includes the steps of:
the wireless camera with the working mode set as a dual mode is directly connected with the video recorder in a communication way;
the wireless camera with the working mode set as the cascade mode is in communication connection with the video recorder through the wireless camera set as the dual mode;
or the wireless camera with the working mode set to the cascade mode is in communication connection with the video recorder through another wireless camera with the working mode set to the cascade mode and a wireless camera with the working mode set to the dual mode.
Further, according to an embodiment of the present invention, the method for connecting the wireless camera to the video recorder in direct communication or in communication with the video recorder through another camera according to the set operation mode includes the steps of:
the wireless camera with the working mode set as the dual mode is automatically and directly in communication connection with the video recorder;
the working mode is set as a cascade mode wireless camera which is in communication connection with the video recorder through a specified dual-mode wireless camera;
alternatively, the wireless camera set in the operation mode to the cascade mode is communicatively connected to the video recorder through a wireless camera set in another specified cascade mode and a wireless camera set in the dual mode.
Further, according to an embodiment of the present invention, the method for monitoring wireless cascade security using a virtual router further includes the steps of: the video recorder also carries out node numbering on the wireless camera settings, and the node numbering is used for carrying out priority weight and/or traffic bandwidth priority setting on data transmission of each wireless camera.
Further, according to an embodiment of the present invention, the method for monitoring wireless cascade security using a virtual router further includes the steps of: when the working mode is set as the cascade mode, the wireless camera can not be in communication connection with the wireless camera of the superior node, the original communication connection is automatically released, and the wireless camera of the superior node is automatically in communication connection with the wireless camera or the video recorder of the superior node.
Further, according to an embodiment of the present invention, the communication connection is specifically a WIFI wireless communication connection.
The wireless cascade security monitoring method adopting the virtual router provided by the embodiment of the invention is in communication connection with each wireless camera after the video recorder is started; the video recorder sets the working mode of each connected wireless camera according to the signal connection quality of each wireless camera; and the wireless camera is directly in communication connection with the video recorder or in communication connection with the video recorder through other wireless cameras according to the set working mode. According to the communication quality difference caused by the difference between the distance and the close distance of the wireless camera and the video recorder, the wireless camera with the close distance and better signal is used as a virtual router; and the wireless camera with longer distance and poorer signal is firstly connected to the virtual router (other wireless cameras for starting the wireless hotspot) and is in wireless cascade connection with the video recorder, and the video recorder allocates different flow bandwidth priorities to the wireless cameras of different links according to different working modes of the wireless cameras, so that smoother video viewing and video storage are realized. In the wireless cascade mode, a plurality of wireless cameras can be connected under a single virtual router; and under the virtual router, the virtual router can also be connected, so that a multi-level tree structure can be realized. And the video transmission fluency of the whole system of the wireless camera is ensured.
Drawings
FIG. 1 is a schematic diagram of a security monitoring communication connection structure in the prior art;
fig. 2 is a schematic diagram of a wireless cascade security monitoring communication connection structure using a virtual router according to an embodiment of the present invention;
fig. 3 is a schematic diagram of another wireless cascade security monitoring communication connection structure using a virtual router according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a wireless cascade security monitoring communication connection structure using a virtual router according to another embodiment of the present invention;
fig. 5 is a flowchart of a wireless cascade security monitoring method using a virtual router according to an embodiment of the present invention;
fig. 6 is a flowchart of another wireless cascade security monitoring method using a virtual router according to an embodiment of the present invention.
Reference numerals:
a video recorder 10;
a first wireless camera 20;
a second wireless camera 30;
a third wireless camera 40;
a fourth wireless camera 50.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Referring to fig. 1 to 3, the present invention provides a wireless cascade security monitoring method using a virtual router, including the steps of: s101, after being started, the video recorder 10 is in communication connection with each wireless camera; the video recorder 10, as a host for controlling, storing and displaying, enters a WiFi AP (access point) mode after being started, and starts to monitor a connection request of the wireless camera, and starts data transmission for the connected wireless camera, stores the video record in a monitoring hard disk, and synchronously displays a real-time video on a monitor. The wireless camera, as a front-end video acquisition device, starts up and defaults to a WiFi STA (station) mode, and automatically connects to the WiFi video recorder 10 according to a network configuration preset by a program. The default node number for all wireless cameras at this time is WLAN 0.
S102, the video recorder 10 sets the working mode of each connected wireless camera according to the signal connection quality of each wireless camera; at this time, the video recorder 10 determines the communication quality with each wireless camera based on the wireless connection with each wireless camera.
In an embodiment of the present invention, the method for determining the quality of the signal connection includes the steps of: the video recorder 10 determines the quality of the signal connection by detecting the wireless signal strength of the wireless camera. That is, when the signal strength between the wireless camera and the video recorder 10 is strong, the video recorder 10 can judge that the signal connection quality of the wireless camera is relatively good. Conversely, when the signal strength between the wireless camera and the video recorder 10 is weak, the video recorder 10 can judge that the signal connection quality of the wireless camera is relatively poor.
In an embodiment of the present invention, the method for determining the quality of the signal connection further includes: the video recorder 10 determines the quality of the signal connection by detecting the packet loss rate of the data transmission of the wireless camera. That is, when the packet loss rate is small in the communication process between the wireless camera and the video recorder 10, the video recorder 10 can determine that the signal connection quality of the wireless camera is relatively good. On the contrary, when the packet loss rate is large in the communication process between the wireless camera and the video recorder 10, the video recorder 10 may determine that the signal connection quality of the wireless camera is relatively poor. In an embodiment of the present invention, the packet loss rate of the data transmission is specifically a packet loss rate of video data transmission.
By detecting the wireless signal strength of the camera and combining the packet loss rate of the actual video data transmission, the quality of the communication connection between the wireless camera and the video recorder 10 is comprehensively evaluated.
Further, in an embodiment of the present invention, the method for setting the operating mode of each connected wireless camera by the video recorder 10 according to the signal connection quality of each wireless camera specifically includes: the video recorder 10 is set to a dual mode for a wireless camera operation mode in which the signal connection quality is good; the dual mode is two working modes of a WiFi AP (access point) mode and a WiFi STA (station) mode, and the node number is upgraded to WLAN 1.
The video recorder 10 is set to the cascade mode for the wireless camera operation mode in which the signal connection quality is poor.
S103, the wireless camera is directly in communication connection with the video recorder 10 or in communication connection with the video recorder 10 through other wireless cameras according to the set working mode.
As shown in fig. 2, the wireless camera whose operation mode is set to the dual mode is directly connected in communication with the video recorder 10; the second wireless camera 30 as in fig. 2 is a dual mode wireless camera. The second wireless camera 30 is directly connected to the video recorder 10. On the other hand, a wireless hotspot mode (WiFi station mode) is turned on, and a virtual route is formed through the wireless hotspot mode, so that the wireless camera in the cascade mode is conveniently in communication connection with the dual-mode wireless camera through the wireless hotspot, and the video data of the wireless camera in the cascade mode is forwarded to the video recorder 10. That is, in this process, the dual-mode wireless camera acts as a virtual router, forwarding the data of the cascaded wireless cameras to the video recorder 10. Because the communication quality between the dual-mode wireless camera and the video recorder 10 is relatively good, more video data can be transmitted, and the stability of the whole video data transmission is ensured by forwarding the wireless camera in the cascade mode. Since the video camera as the virtual router needs to transfer the video signal of the lower-level video camera in addition to its own video signal, the data load is significantly increased.
Referring to fig. 2 to 4, the wireless camera whose operation mode is set to the cascade mode is communicatively connected to the video recorder 10 through the wireless camera set to the dual mode; as shown in fig. 2 and 3, the wireless camera set in the cascade mode may cause a serious loss of video data if the video data is directly transmitted to the video recorder 10 through a wireless network because the signal quality between the wireless camera and the video recorder 10 is relatively poor. At this time, the wireless camera whose operation mode is set to the cascade mode first transmits video data to the dual-mode wireless camera by searching for a dual-mode wireless camera that is nearby and opens a wireless hotspot mode (WiFi station mode) through a communication connection with the dual-mode wireless camera. The video data is then transmitted to the video recorder 10 via the dual mode wireless camera. Therefore, the packet loss rate of the video data is reduced, and the fluency of video transmission is ensured.
Alternatively, in another embodiment of the present invention, the wireless camera whose operation mode is set to the cascade mode is communicatively connected to the video recorder 10 through another wireless camera set to the cascade mode and a wireless camera set to the dual mode. Referring to fig. 4, in an implementation of the present invention, when the wireless camera set in the cascade mode cannot smoothly transmit video data to the video recorder 10 through the dual-mode wireless camera, the video recorder 10 may also turn on a wireless hotspot mode by using another wireless camera in the cascade mode near the wireless camera in the cascade mode that needs video transmission, so that the wireless camera in the cascade mode that needs video transmission can conveniently transmit data to the video recorder 10 through the wireless camera in the other cascade mode. More specifically, as shown in fig. 4, the fourth wireless camera 50 is a cascade mode wireless camera, since the communication quality with the wireless camera of the cascade mode (the fourth wireless camera 50 in fig. 4) and the wireless camera of the dual mode (the second wireless camera 30 in fig. 4) is relatively poor. Therefore, the wireless camera of the cascade mode (the fourth wireless camera 50 in fig. 4) is communicatively connected to the video recorder 10 via another wireless camera set to the cascade mode (the third wireless camera 40 in fig. 4) and a wireless camera set to the dual mode (the second wireless camera 30 in fig. 4). So that each of the cascaded-mode wireless cameras can smoothly transfer video data to the video recorder 10. The second wireless camera 30 and the third wireless camera 40 are virtual routers. In the wireless cascade mode, a plurality of wireless cameras can be connected under a single virtual router; and under the virtual router, the virtual router can also be connected, so that a multi-level tree structure can be realized.
The wireless cascade security monitoring method adopting the virtual router provided by the embodiment of the invention is in communication connection with each wireless camera after the video recorder is started; the video recorder sets the working mode of each connected wireless camera according to the signal connection quality of each wireless camera; and the wireless camera is directly in communication connection with the video recorder or in communication connection with the video recorder through other wireless cameras according to the set working mode. According to the communication quality difference caused by the difference between the distance and the close distance of the wireless camera and the video recorder, the wireless camera with the close distance and better signal is used as a virtual router; and the wireless camera with longer distance and poorer signal is firstly connected to the virtual router (other wireless cameras for starting the wireless hotspot) and is in wireless cascade connection with the video recorder, and the video recorder allocates different flow bandwidth priorities to the wireless cameras of different links according to different working modes of the wireless cameras, so that smoother video viewing and video storage are realized. In the wireless cascade mode, a plurality of wireless cameras can be connected under a single virtual router; and under the virtual router, the virtual router can also be connected, so that a multi-level tree structure can be realized. And the video transmission fluency of the whole system of the wireless camera is ensured.
Further, in one embodiment of the present invention, a wireless camera whose operating mode is set to dual mode is automatically connected in communication directly with the video recorder 10; the working mode is set as that the wireless camera of the cascade mode is connected with the video recorder 10 in a communication way through the appointed dual-mode wireless camera; alternatively, the wireless camera set in the operation mode to the cascade mode is communicatively connected to the video recorder 10 via a wireless camera set in another specified cascade mode and a wireless camera set in the dual mode.
Specifically, referring to fig. 3 and 4, in an embodiment of the present invention, the dual mode wireless camera is communicatively connected to the video recorder 10 in an automatic manner, that is, when the wireless camera is set to dual mode, it is automatically communicatively connected to the video recorder 10 to transmit video data to the video recorder 10. When the wireless camera is set to be in the cascade mode, the wireless camera can be connected with a nearby dual-mode wireless camera or other cameras in the cascade mode in a manual setting mode. And designating the cascading mode according to the installation position of each wireless camera in a manual mode. The fluency of video transmission of each wireless camera can be ensured.
That is, in the embodiment provided by the present invention, the communication connection link between the wireless cameras may be automatically configured by the video recorder program, or may be manually configured by the user, so as to adapt to the complex network interconnection environment.
Further, in an embodiment of the present invention, the method for monitoring security and security by wireless cascade connection using a virtual router further includes step S205, where the video recorder 10 further performs node numbering on each wireless camera setting, and the node numbering is used to perform priority weight and/or traffic bandwidth priority setting on data transmission of each wireless camera. The embodiment of the invention sets node numbers for each wireless camera aiming at the cascade tree structure, adopts different priority weights for different cameras according to the node numbers, and preferentially ensures the data transmission and/or the flow bandwidth priority setting of key nodes (for example, the wireless cameras set as a dual mode), for example, the wireless video recorders of the key nodes can respectively have higher bandwidth priority, thereby ensuring the preferential communication of the key nodes, and realizing more smooth video viewing and video storage.
Further, in an embodiment of the present invention, the wireless cascade security monitoring method using the virtual router further includes step S205, when the working mode is set to be the cascade mode wireless camera which cannot be in communication connection with the wireless camera of the upper node, the original communication connection is automatically released, and the wireless camera of the upper node is automatically in communication connection with the wireless camera of the next upper node or the video recorder 10 of the upper node. In order to prevent the large-range network disconnection caused by the failure of the key node, after the wireless camera serving as the virtual router breaks down, the wireless camera of the lower level automatically releases the original cascade connection, and the node state-1 is connected to the node of the upper level of the wireless camera serving as the virtual router, so that the minimum failure influence is realized. The embodiment of the invention realizes a long-distance and high-stability wireless monitoring system scheme by a cascade mode and a corresponding node strategy.
Further, in an embodiment of the present invention, the communication connection mode is specifically a WIFI wireless communication connection. As wireless communication technology advances, in other embodiments, other wireless communication technologies may be used.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing detailed description, or equivalent changes may be made in some of the features of the embodiments. All equivalent structures made by using the contents of the specification and the attached drawings of the invention can be directly or indirectly applied to other related technical fields, and are also within the protection scope of the patent of the invention.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.
Claims (4)
1. A wireless cascade security monitoring method adopting a virtual router is characterized by comprising the following steps:
after the video recorder is started, the video recorder is in communication connection with each wireless camera;
the video recorder sets the working mode of each connected wireless camera according to the signal connection quality of each wireless camera;
the wireless camera is directly in communication connection with the video recorder or in communication connection with the video recorder through other wireless cameras according to a set working mode;
the method for judging the quality of the signal connection comprises the following steps: the video recorder judges the signal connection quality by detecting the wireless signal intensity of the wireless camera;
the method for judging the quality of the signal connection further comprises the following steps: the video recorder judges the signal connection quality by detecting the packet loss rate of the data transmission of the wireless camera; the packet loss rate of the data transmission is specifically the packet loss rate of the video data transmission;
the method for setting the working mode of each connected wireless camera by the video recorder according to the signal connection quality of each wireless camera comprises the following steps:
the video recorder sets a dual mode for the wireless camera working mode with better signal connection quality;
the video recorder sets a cascade mode for a wireless camera working mode with poor signal connection quality;
the method for the wireless camera to be in direct communication connection with the video recorder or in communication connection with the video recorder through other cameras according to the set working mode comprises the following steps:
the wireless camera with the working mode set as a dual mode is directly connected with the video recorder in a communication way;
the wireless camera with the working mode set as the cascade mode is in communication connection with the video recorder through the wireless camera set as the dual mode;
or the wireless camera with the working mode set as the cascade mode is in communication connection with the video recorder through another wireless camera with the working mode set as the cascade mode and a wireless camera with the working mode set as the dual mode;
when the working mode is set as the cascade mode, the wireless camera can not be in communication connection with the wireless camera of the superior node, the original communication connection is automatically released, and the wireless camera of the superior node is automatically in communication connection with the wireless camera or the video recorder of the superior node.
2. The wireless cascade security monitoring method adopting the virtual router as claimed in claim 1, wherein the method for the wireless camera to be in direct communication connection with the video recorder or in communication connection with the video recorder through other cameras according to the set working mode comprises the steps of:
the wireless camera with the working mode set as the dual mode is automatically and directly in communication connection with the video recorder;
the working mode is set as a cascade mode wireless camera which is in communication connection with the video recorder through a specified dual-mode wireless camera;
alternatively, the wireless camera set in the operation mode to the cascade mode is communicatively connected to the video recorder through a wireless camera set in another specified cascade mode and a wireless camera set in the dual mode.
3. The wireless cascade security monitoring method adopting the virtual router as claimed in claim 1, further comprising the steps of: the video recorder also carries out node numbering on the wireless camera settings, and the node numbering is used for carrying out priority weight and/or traffic bandwidth priority setting on data transmission of each wireless camera.
4. The wireless cascade security monitoring method using the virtual router according to any one of claims 1 to 3, wherein the communication connection mode is a WIFI wireless communication connection.
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| CN110798643B (en) * | 2019-11-25 | 2022-02-22 | 广州市奥威亚电子科技有限公司 | User terminal equipment and video and audio quality assurance system using same |
| CN113055975B (en) * | 2019-12-28 | 2022-06-14 | 浙江宇视科技有限公司 | Remote wireless access automatic cascade method and system |
| CN111182265B (en) * | 2019-12-31 | 2021-12-17 | 浙江大华技术股份有限公司 | Video monitoring equipment cascading method and device |
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