CN105282486A - Video monitoring data transmission method, video monitoring data transmission system and NVR (Network Video Recorder) - Google Patents
Video monitoring data transmission method, video monitoring data transmission system and NVR (Network Video Recorder) Download PDFInfo
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Abstract
The invention relates to a video monitoring data transmission method, a video monitoring data transmission system and an NVR (Network Video Recorder). The method comprises the steps of receiving communication requests; judging the source of each communication request; responding to the communication request of an IPC (Internet Protocol Camera) with D2D communication capability, and receiving and storing video data monitored by the IPC; and responding to the communication request of a video monitoring platform, and sending the video data to the video monitoring platform. The method, the system and the NVR disclosed by the invention can simplify wiring deployment between the IPC and the NVR, and can be widely applied to temporary video monitoring scenarios.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a method and a system for transmitting video monitoring data, and an NVR (network video recorder).
Background
Video monitoring technology has been one of the application technology hotspots concerned by people, and is widely applied to many occasions due to the characteristics of intuition, convenience, rich information content and the like. In recent years, with the development of computer technology, the improvement of image processing technology, the popularization of broadband networks and the continuous and rapid development of the domestic security video monitoring market, the application field of video monitoring is more extensive in various industries, so that how to utilize advanced information technology to research a high-quality high-speed video monitoring system suitable for various occasions is the primary task in the current video monitoring field.
In addition to video monitoring applications in fixed places, there are increasing demands for temporary video monitoring scenes, such as construction sites, exhibitions, large activities, and the like, and it is necessary to establish a specific video monitoring system and a device suitable for the system according to the characteristics of the temporary monitoring applications.
Modern digital video monitoring systems generally include IPC (internet protocol camera), transmission, NVR, a platform, a client, and the like. At present, the IPC and the NVR are connected in a wired mode, and because the IPC and the NVR are usually deployed close to each other, under the video communication application scene with a large number of temporary video monitoring requirements, the wired mode is high in deployment cost, long in period and large in workload, and development and popularization of services are seriously influenced.
Disclosure of Invention
The present disclosure proposes a new technical solution in view of at least one of the above problems.
The present disclosure provides, in one aspect thereof, a video monitoring data transmission method that can simplify the wiring deployment between IPC and NVR, and can be widely applied to a temporary video monitoring scene.
The disclosure provides, in another aspect thereof, an LTE/D2D network hard disk recorder NVR with dual cards, which can simplify the wiring deployment between IPC and NVR, and can be widely applied in temporary video monitoring scenarios.
The present disclosure provides, in still another aspect thereof, a video surveillance data transmission system that can simplify the wiring deployment between IPC and NVR, and can be widely applied to temporary video surveillance scenes.
According to the present disclosure, there is provided a video monitoring data transmission method, including:
receiving a communication request;
judging the source of the communication request;
receiving and storing video data monitored by IPC in response to a communication request of the IPC with the D2D communication capability;
and responding to the communication request of the video monitoring platform, and sending the video data to the video monitoring platform.
In some embodiments of the disclosure, the method further comprises:
receiving the resources allocated by the base station for D2D communication.
In some embodiments of the present disclosure, the communication request sent by the video surveillance platform includes time period information.
In some embodiments of the present disclosure, the source of the communication request is determined according to an identification field carried in the communication request.
According to the present disclosure, there is also provided an LTE/D2D network hard disk recorder NVR with dual cards, comprising:
a request receiving unit configured to receive a communication request;
a judging unit for judging the source of the communication request;
the data receiving unit is used for responding to a communication request of the IPC (Internet protocol camera) with the D2D communication capability and receiving and storing video data monitored by the IPC;
and the data sending unit is used for responding to the communication request of the video monitoring platform and sending the video data to the video monitoring platform.
In some embodiments of the present disclosure, the NVR further comprises:
and a resource information receiving unit, configured to receive a resource allocated by the base station for D2D communication.
In some embodiments of the present disclosure, the communication request sent by the video surveillance platform includes time period information.
In some embodiments of the present disclosure, the determining unit is configured to determine the source of the communication request according to an identification field carried in the communication request.
According to the present disclosure, there is also provided a video surveillance data transmission system comprising a webcam IPC with D2D communication capability, a video surveillance platform and an LTE/D2DNVR with dual cards.
In some embodiments of the present disclosure, the system further comprises:
and the base station is used for allocating resources for D2D communication of IPC and NVR.
In some embodiments of the present disclosure, the base station further receives location information reported by the IPC and the NVR, and allocates resources according to the location information.
In some embodiments of the disclosure, the IPC and NVR are within the coverage of the same base station.
In the technical scheme of the disclosure, data transmission is performed between the IPC with the D2D communication capability and the LTE/D2DNVR with the dual cards in a D2D mode instead of the traditional wired mode, so that no wiring is required to be installed between the IPC and the NVR, and the method and the device can be widely applied to temporary video monitoring scenes.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure, are incorporated in and constitute a part of this application. In the drawings:
FIG. 1 shows a network video surveillance system architecture diagram of a new LTE/D2DNVR with IPC having D2D communication capability.
Fig. 2 is a schematic flow chart of a video monitoring data transmission method according to an embodiment of the present disclosure.
Fig. 3 shows a schematic flow chart of wireless video transmission between the dual-card NVR and the IPCD2D through D2D communication.
FIG. 4 is a schematic structural diagram of an LTE/D2D network video recorder NVR with dual cards according to an embodiment of the present disclosure.
Fig. 5 is a schematic structural diagram of a video surveillance data transmission system according to an embodiment of the present disclosure.
Detailed Description
The present disclosure will be described below with reference to the accompanying drawings. It is to be noted that the following description is merely illustrative and exemplary in nature and is in no way intended to limit the disclosure, its application, or uses. Unless specifically stated otherwise, the relative arrangement of components and steps and numerical expressions and values set forth in the embodiments do not limit the scope of the present disclosure. Additionally, techniques, methods, and apparatus known to those skilled in the art may not be discussed in detail but are intended to be part of the specification where appropriate.
At present, in many application scenes requiring short-distance communication capacity, short-distance wireless communication technologies such as Bluetooth, WLAN and Zigbee are mostly adopted, and common frequency band communication is adopted, so that interference is unpredictable, communication quality is not guaranteed, and the method is not suitable for video security monitoring application with high communication quality requirements.
And by adopting the 4G cellular network communication, in the cell network, the user equipment needs to be controlled in a centralized manner by the base station for communication, and the eNB has the advantage that the eNB can control the use of radio resources in the cell in a centralized manner to perform effective interference control. However, when two user equipments are relatively close to each other, the base station still communicates with each other, which results in waste of radio resources.
The inventor has noted that with the development of communication technology, the lte 2D (direct device-to-device communication) hot spot technology allows several mobile devices in a cellular network, which are relatively close to each other, to directly communicate with each other, and can guarantee communication quality, which is suitable for video communication application scenarios where temporary video monitoring is required.
Therefore, the following embodiments of the present disclosure construct a new video communication system, and implement DVR (digital video recorder) LTE cellular network and D2D video transmission by using a new dual-card NVR storage device and an IPC device with D2D communication capability, and implement D2D communication between the IPC and the NVR, and implement cellular network communication between the NVR and the video monitoring platform. The video communication system under the LTE communication network architecture is constructed, the wiring deployment between the IPC and the NVR can be simplified, the IPC with the D2D communication capability is released through the release position of the optimizing device, the wiring deployment is simplified, the burden of a backbone network of a video monitoring system is reduced, and the quality of video communication is guaranteed.
FIG. 1 shows a network video surveillance system architecture diagram of a new LTE/D2DNVR with IPC having D2D communication capability.
As shown in fig. 1, the video communication system based on D2D is deployed according to cell division, the device placement position needs to be optimized, the corresponding IPC and NVR are deployed in the coverage of the same base station, and the base station interacts data with the IPC and NVR only in the establishment phase initiated by the D2D communication request, so as to allocate resources for D2D communication between the IPC and NVR.
Adopt novel two card NVR storage device and have D2D communication capability's IPC device, two card NVR and video monitoring platform adopt cellular network communication, receive video monitoring platform communication request after, the NVR conveys the video through LTE network to video monitoring platform with the IPC real-time transmission video of storage.
Adopt novel two card NVR storage devices and have the IPC device of D2D communication ability, the IPC is with real-time video transmission NVR storage, adopts D2D communication to reduce the wiring to IPC and NVR, has alleviateed the video monitoring system backbone network burden.
Fig. 2 is a schematic flow chart of a video monitoring data transmission method according to an embodiment of the present disclosure.
As shown in fig. 2, this embodiment may include the steps of:
s202, receiving a communication request;
in particular, since the LTE/D2DNVR with dual cards is between the IPC with D2D communication capability and the video surveillance platform, the communication request may come from either the IPC or the video surveillance platform. When the communication request comes from the IPC, the IPC is indicated to want to send the monitoring data collected in real time to the NVR, and when the communication request comes from the video monitoring platform, the video monitoring platform is indicated to want to read the monitoring data from the NVR.
S204, judging the source of the communication request;
specifically, since the source of the communication request differs and the processing performed differs, it is necessary to determine which device has issued the communication request.
Further, the source of the communication request can be judged according to the identification field carried in the communication request.
S206, responding to the communication request of the IPC with the D2D communication capability, receiving and storing the video data monitored by the IPC.
And S208, responding to the communication request of the video monitoring platform, and sending the video data to the video monitoring platform.
In this embodiment, since data transmission is performed between the IPC with D2D communication capability and the LTE/D2DNVR with dual cards by the D2D method, instead of the conventional wired method, the installation and wiring between the IPC and the NVR are not required, and the method can be widely applied to temporary video monitoring scenes.
Further, before the IPC sends a communication request to the NVR, it sends a resource allocation request to the current base station and receives the resource allocated by the base station for D2D communication.
Specifically, before the IPC sends a communication request to the NVR, the IPC sends a resource allocation request to the current base station, where the resource allocation request carries an identifier of the NVR to be in D2D communication with the IPC.
Wherein the requested resources include channels and transmission power.
To facilitate the base station determining the appropriate transmit power, the IPC may carry location information for the IPC when transmitting a resource allocation request to the base station. And the base station determines the transmission power of the IPC for sending the monitoring data to the NVR according to the IPC position information and the position information periodically reported by the NVR. If the IPC is closer to the NVR, lower transmit power may be allocated to prevent interference to other users in the cell.
It should be noted that the correspondence between IPC and NVR needs to be preset in the base station.
In addition, it should be noted that the base station first determines whether the IPC and the NVR belong to the coverage of one cell according to the location information reported by the IPC and the NVR, if so, the base station allocates resources required for D2D communication to the IPC and the NVR, that is, allows the IPC and the NVR to perform D2D communication, otherwise, does not allocate resources required for D2D communication to the IPC and the NVR, that is, does not allow the IPC and the NVR to perform D2D communication.
When establishing the D2D connection, the base station is required to allocate the frequency band for D2D communication according to the cell communication situation. The base station can adjust the transmission power of the D2D communication and the multiplexed resource to control the interference, the transmission power of the D2D communication needs to be reduced to a threshold value to ensure that the system uplink SINR is larger than the target SINR, and the base station controls the transmission power of the D2D communication to ensure the communication of the system cell users when the D2D communication multiplexes the downlink resource. Suitable D2D transmit power control may be determined by long term observation of the effect of different powers on system cell users. In terms of channel allocation, when the channel is not full, the D2D communication can be allocated directly, and when the channel is full and needs multiplexing resources, the cell users and the D2D users can be separated in propagation space. For example, the base station may allocate indoor D2D users and outdoor cell users to reuse the same system resources. Meanwhile, the base station can adjust the resources allocated for the D2D communication according to the link quality feedback of the cell users, and when the link quality of the users is excessively reduced, the transmission power of the D2D communication needs to be reduced.
In addition, because the data of IPC real-time monitoring is stored in the NVR, the video monitoring platform initiates a communication request to the NVR according to the triggering condition so as to acquire the required data. In order to obtain the required data, the video monitoring platform may include time period information in the sent communication request, so that the NVR extracts corresponding monitoring data according to the time period information and sends the monitoring data to the video monitoring platform.
Fig. 3 shows a schematic flow chart of wireless video transmission between the dual-card NVR and the IPCD2D through D2D communication.
As shown in fig. 3, the following steps may be included:
step one, when the NVR receives a communication request through the wireless communication module, judging a data source.
And step two, when the data source is the video monitoring platform, the NVR carries out cellular communication through the LTE4G card in the double cards, and transmits the video content stored in the NVR.
And step three, when the data source is the D2D communication request of the IPC, the base station allocates communication parameters such as channels, transmission power and the like, the NVR and the IPC establish D2D communication connection, and the real-time video shot by the IPC is received in a D2D communication mode.
According to the embodiment, the LTE wireless communication module is added in the existing NVR equipment and IPC, the IPC and the NVR do not need to be installed, wired and maintained in temporary video monitoring scenes such as construction sites, exhibitions and large activities, real-time video transmission and storage can be achieved only by putting in the D2DIPC and the dual-card NVR, the video communication quality can be guaranteed, the network burden is reduced, and the service popularization of the temporary video monitoring demand scene is facilitated.
It will be understood by those skilled in the art that all or part of the steps of implementing the above method embodiments may be implemented by hardware associated with program instructions, the program may be stored in a storage medium readable by a computing device, and the program may execute the steps of the above method embodiments when executed, and the storage medium may include various media capable of storing program codes, such as ROM, RAM, magnetic disk and optical disk.
FIG. 4 is a schematic structural diagram of an LTE/D2D network video recorder NVR with dual cards according to an embodiment of the present disclosure.
As shown in fig. 4, NVR40 in this embodiment may include a request receiving unit 402, a judging unit 404, a data receiving unit 406, and a data transmitting unit 408. Wherein,
a request receiving unit 402 for receiving a communication request;
a determining unit 404, configured to determine a source of the communication request;
a data receiving unit 406, configured to receive and store video data monitored by the IPC in response to a communication request of the IPC having D2D communication capability;
and a data sending unit 408, configured to send video data to the video monitoring platform in response to the communication request of the video monitoring platform.
In this embodiment, since data transmission is performed between the IPC with D2D communication capability and the LTE/D2DNVR with dual cards by the D2D method, instead of the conventional wired method, the installation and wiring between the IPC and the NVR are not required, and the method can be widely applied to temporary video monitoring scenes.
Further, the NVR may further include:
and a resource information receiving unit, configured to receive a resource allocated by the base station for D2D communication.
The communication request sent by the video monitoring platform comprises time period information.
Further, the judging unit is configured to judge a source of the communication request according to the identification field carried in the communication request.
Fig. 5 is a schematic structural diagram of a video surveillance data transmission system according to an embodiment of the present disclosure.
As shown in FIG. 5, the system 50 in this embodiment may include an IPC502 with D2D communication capability, a video surveillance platform 504, and an LTE/D2DNVR with dual cards 506. The LTE/D2DNVR506 with dual cards has the capability of performing DVRLTE cellular network transmission and D2D video transmission simultaneously, which can be implemented by the foregoing embodiments. The webcam IPC502 with D2D communication capability has the capability to transmit video in real time with NVR506 through D2D communication.
In this embodiment, since data transmission is performed between the IPC with D2D communication capability and the LTE/D2DNVR with dual cards in a D2D manner, instead of the conventional wired manner, the installation and wiring between the IPC and the NVR are not required, the video communication quality is guaranteed while the load on the backbone network of the video monitoring system is reduced, and the method can be widely applied to temporary video monitoring scenes.
Further, the system may further include:
and the base station is used for allocating resources for D2D communication of IPC and NVR. The allocated resources include channels and transmit power.
The base station also receives the position information reported by the IPC and the NVR, and allocates resources according to the position information, for example, the transmission power of the video data transmitted by the IPC to the NVR is determined according to the distance between the IPC and the NVR.
In addition, IPC and NVR are within the coverage of the same base station.
Further, the communication request sent by the video monitoring platform to the NVR includes the time period information.
The embodiment shown in fig. 5 adopts a novel dual-card LTE/D2DNVR storage device and an IPC device with D2D communication capability, integrates D2D communication capability in IPC, defines a video storage application layer session protocol, initiates a D2D communication request, reports location information, calls D2D communication capability, integrates an LTE communication module in NVR to realize dual-card communication, transmits DVRLTE cellular network and LTE 2D video, communicates IPC and NVR by using D2D, communicates NVR and platform by using cellular network, and constructs a video communication system under an LTE communication network architecture.
After the embodiment is applied, the LTE wireless communication module can be added in the existing NVR equipment and IPC, installation and wiring and line maintenance are not needed to be carried out on the IPC and the NVR in temporary video monitoring scenes such as construction sites, exhibitions, large-scale activities, fields and the like, real-time video transmission and storage can be realized only by putting in the D2DIPC and the dual-card NVR, the video communication quality can be guaranteed, the network burden is reduced, and the service popularization of the temporary video monitoring demand scenes is facilitated.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments can be mutually referred to. For the apparatus embodiment, since it is substantially similar to the method embodiment, the description is relatively simple, and reference may be made to the description of the method embodiment section for the relevant points.
While the present disclosure has been described with reference to exemplary embodiments, it should be understood that the present disclosure is not limited to the exemplary embodiments described above. It will be apparent to those skilled in the art that the above-described exemplary embodiments may be modified without departing from the scope and spirit of the disclosure. The scope of the following claims is to be accorded the broadest interpretation so as to encompass all such modifications and equivalent structures and functions.
Claims (12)
1. A video monitoring data transmission method is characterized by comprising the following steps:
receiving a communication request;
judging the source of the communication request;
in response to a communication request of an IPC (Internet protocol camera) with D2D communication capability, receiving and storing video data monitored by the IPC;
and responding to a communication request of a video monitoring platform, and sending the video data to the video monitoring platform.
2. The video surveillance data transmission method according to claim 1, further comprising:
receiving the resources allocated by the base station for D2D communication.
3. The video surveillance data transmission method according to claim 1, wherein the communication request sent by the video surveillance platform includes time period information.
4. The video monitoring data transmission method according to claim 1, wherein the source of the communication request is determined according to an identification field carried in the communication request.
5. An LTE/D2D network hard disk recorder NVR with double cards, comprising:
a request receiving unit configured to receive a communication request;
a judging unit for judging the source of the communication request;
the data receiving unit is used for responding to a communication request of the IPC (Internet protocol camera) with the D2D communication capability and receiving and storing video data monitored by the IPC;
and the data sending unit is used for responding to a communication request of a video monitoring platform and sending the video data to the video monitoring platform.
6. The LTE/D2DNVR with dual cards of claim 5, wherein the NVR further comprises:
and a resource information receiving unit, configured to receive a resource allocated by the base station for D2D communication.
7. The LTE/D2DNVR with dual cards of claim 5, wherein the video surveillance platform sends a communication request that includes time period information.
8. The LTE/D2DNVR of claim 5, wherein the determining unit is configured to determine the source of the communication request according to an identification field carried in the communication request.
9. A video surveillance data transmission system comprising a webcam IPC with D2D communication capability, a video surveillance platform and a LTE/D2DNVR with dual cards as claimed in any one of claims 5 to 8.
10. The video surveillance data transmission system of claim 9, further comprising:
and the base station is used for allocating resources for the D2D communication between the IPC and the NVR.
11. The video monitoring data transmission system of claim 10, wherein the base station further receives location information reported by the IPC and the NVR, and allocates resources according to the location information.
12. The video surveillance data transmission system of claim 10, wherein the IPC and the NVR are within coverage of the same base station.
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