阅读说明：本技术 一种无线传输方法、装置、音视频采集终端和监控系统 (Wireless transmission method and device, audio and video acquisition terminal and monitoring system ) 是由 何剑海 包建荣 汪衍辉 周明德 杜宝祯 胡克满 于 2019-12-18 设计创作，主要内容包括：本发明属于网络监控技术领域，公开了一种无线传输方法、装置、音视频采集终端和监控系统。方法包括：获取矿井内部环境情况信息，所述环境情况信息至少包括环境图像和环境音频；将所述环境情况信息进行实时传输协议封装，得到环境情况数据帧；将所述环境情况数据帧分割成预设数量帧的环境情况数据帧组，并将所有所述环境情况数据帧组进行预设数量的复制，得到环境情况数据帧组集；将所述环境情况数据帧集包括的各个所述环境情况数据帧组分配至不同的网络抽象层单元并行传送至目标服务器。本发明实施例提供的无线传输方法，通过将要传输的环境情况数据分割复制后分别传输，能够保证传输效率的同时避免大量数据传输时数据丢失，保证数据传输准确。(The invention belongs to the technical field of network monitoring and discloses a wireless transmission method, a wireless transmission device, an audio and video acquisition terminal and a monitoring system. The method comprises the following steps: obtaining mine internal environment condition information, wherein the environment condition information at least comprises an environment image and an environment audio; performing real-time transmission protocol encapsulation on the environmental condition information to obtain an environmental condition data frame; dividing the environmental condition data frames into environmental condition data frame groups with a preset number of frames, and copying all the environmental condition data frame groups with a preset number to obtain an environmental condition data frame group set; and distributing each environmental condition data frame group included in the environmental condition data frame set to different network abstraction layer units and transmitting the different network abstraction layer units to a target server in parallel. According to the wireless transmission method provided by the embodiment of the invention, the environmental condition data to be transmitted are respectively transmitted after being divided and copied, so that the transmission efficiency can be ensured, the data loss during the transmission of a large amount of data can be avoided, and the data transmission accuracy is ensured.)

1. A method of wireless transmission, the method comprising:

obtaining mine internal environment condition information, wherein the environment condition information at least comprises an environment image and an environment audio;

performing real-time transmission protocol encapsulation on the environmental condition information to obtain an environmental condition data frame;

dividing the environmental condition data frames into environmental condition data frame groups with a preset number of frames, and copying all the environmental condition data frame groups with a preset number to obtain an environmental condition data frame group set;

and distributing each environmental condition data frame group included in the environmental condition data frame set to different network abstraction layer units and transmitting the different network abstraction layer units to a target server in parallel.

2. The wireless transmission method according to claim 1, wherein before the dividing the environmental condition data frame into environmental condition data frame groups of a preset number of frames and copying all the environmental condition data frame groups by a preset number to obtain the environmental condition data frame group set, the method further comprises:

judging whether the frame number of the environmental condition data frame is greater than the maximum transmission frame number of a network abstraction layer unit; and if so, dividing the environmental condition data frame into a data frame group with a preset number of frames, wherein the number of the data frame group is less than or equal to the maximum transmission frame number of the network abstraction layer unit.

3. The wireless transmission method according to claim 1, wherein the dividing the environmental condition data frame into environmental condition data frame groups of a preset number of frames and copying all the environmental condition data frame groups by a preset number further comprises:

and numbering the environmental condition data frame groups according to the sequence of time, and stamping the same time stamp on the copied environmental condition data frames.

4. The wireless transmission method according to claim 1, wherein before allocating each of the environmental condition data frame groups included in the environmental condition data frame set to a different network abstraction layer unit and transmitting the different network abstraction layer units to a target server in parallel, the method further comprises:

and sending a handshake frame to a target server, and if receiving a feedback handshake frame sent by the target server within a preset time, determining a connection relation and starting data transmission.

5. The wireless transmission method according to claim 1, wherein the allocating each of the environmental condition data frame groups included in the environmental condition data frame set to a different network abstraction layer unit and transmitting the different network abstraction layer units to a target server in parallel comprises:

performing serial-to-parallel switching on the environmental condition data frame groups included in the environmental condition data frame set to divide the environmental condition data frame groups of the same data stream into independent parallel data frame groups;

distributing each parallel data frame group to different network abstraction layer units;

and monitoring a channel of the network abstraction unit, and when the channel is idle, transmitting the parallel data frame group with a first preset probability and delaying to transmit the parallel data frame group with a second preset probability, wherein the sum of the first preset probability and the second preset probability is 1.

6. A wireless transmission apparatus, the apparatus comprising:

the system comprises an environmental information acquisition unit, a processing unit and a processing unit, wherein the environmental information acquisition unit is used for acquiring mine internal environmental condition information, and the environmental condition information at least comprises an environmental image and an environmental audio;

the environment information packaging unit is used for carrying out real-time transmission protocol packaging on the environment condition information to obtain an environment condition data frame;

the data frame segmentation unit is used for segmenting the environmental condition data frames into environmental condition data frame groups with frames of a preset number, and copying all the environmental condition data frame groups with the preset number to obtain an environmental condition data frame group set;

and the environment information transmission unit is used for distributing each environment condition data frame group included in the environment condition data frame set to different network abstraction layer units and transmitting the different network abstraction layer units to the target server in parallel.

7. An audio and video acquisition terminal, characterized in that it includes:

the audio and video acquisition device is used for acquiring the environment image and the environment sound at least under the worst all-black environment condition in the mine;

the audio and video processing device is used for receiving the environment image and the environment sound, and coding and compressing the environment image and the environment sound to obtain the information of the internal environment condition of the mine;

the wireless transmission device of claim 6, configured to wirelessly send the environmental condition information to a client to complete an audio/video capture operation.

8. The terminal according to claim 7, wherein the audio/video acquisition device, the audio/video processing device and the wireless transmission device are respectively provided with an electrostatic shielding housing, or are designed to be protected against static electricity by an electrostatic protection method at least including an electrostatic shielding method and/or a neutralization method.

9. An audio-video monitoring system, comprising:

the audio and video acquisition terminal of any one of claims 7 to 8, which is used for acquiring mine internal environment images and environment sounds, and coding and compressing the environment images and the environment sounds to obtain mine internal environment condition information;

the wireless access equipment receives the environmental condition information wirelessly transmitted by at least one audio and video acquisition terminal and transmits the environmental condition information to a monitoring server; and the monitoring server is used for receiving the environmental condition information, decompressing and decoding the environmental condition information and timely knowing the internal condition of the mine.

Technical Field

The invention belongs to the technical field of network monitoring, and particularly relates to a wireless transmission method, a wireless transmission device, an audio and video acquisition terminal and a monitoring system.

Background

The video monitoring system is a comprehensive system integrating the technologies of computer interactivity, multimedia information comprehensiveness, communication distributivity, monitoring instantaneity and the like. The video monitoring system can accurately, clearly and quickly transmit information such as real-time images and data of the monitored site to the monitoring center server side, and the monitoring center can directly know and master the current situation of each monitored site in real time through the video monitoring system so as to directly make corresponding reaction and processing according to the situation of the monitored site.

The existing simple coal mine wired communication equipment often causes the breakage of a wired transmission cable due to the collapse of a tunnel, and cannot report the situation of on-site disaster to a ground management control center in real time, so that the blindness of rescue workers is caused; in addition, a traditional Wireless Sensor Network (WSN) is a distributed autonomous system, WMSN nodes have sensing, computing and communication capabilities, multimedia sensors on the nodes can acquire various media information such as audio, video, images and the like of the surrounding environment, and report data to sink nodes in a multi-hop manner, so that comprehensive information acquisition is achieved, but the processing capability, storage capability and communication capability of the system are relatively weak, and data is easily lost after multi-hop when the data volume is large, and the system is only suitable for communication tasks with small data volume.

Therefore, in the prior art, the traditional wired communication monitoring is limited by the wire and cable, the monitoring feedback requirements under the condition factors such as accidents cannot be met, the traditional wireless communication has weak data transmission capacity, the accurate transmission of a large amount of data cannot be carried out, and the data is easy to lose.

Disclosure of Invention

The embodiment of the invention aims to provide a wireless transmission method, and aims to solve the problems that wired transmission is limited and transmission is inaccurate due to the fact that data is easily lost in traditional wireless transmission in the prior art.

The embodiment of the invention is realized in such a way that a wireless transmission method comprises the following steps:

obtaining mine internal environment condition information, wherein the environment condition information at least comprises an environment image and an environment audio;

performing real-time transmission protocol encapsulation on the environmental condition information to obtain an environmental condition data frame;

dividing the environmental condition data frames into environmental condition data frame groups with a preset number of frames, and copying all the environmental condition data frame groups with a preset number to obtain an environmental condition data frame group set;

and distributing each environmental condition data frame group included in the environmental condition data frame set to different network abstraction layer units and transmitting the different network abstraction layer units to a target server in parallel.

Another object of an embodiment of the present invention is to provide a wireless transmission apparatus, including:

the system comprises an environmental information acquisition unit, a processing unit and a processing unit, wherein the environmental information acquisition unit is used for acquiring mine internal environmental condition information, and the environmental condition information at least comprises an environmental image and an environmental audio;

the environment information packaging unit is used for carrying out real-time transmission protocol packaging on the environment condition information to obtain an environment condition data frame;

the data frame segmentation unit is used for segmenting the environmental condition data frames into environmental condition data frame groups with frames of a preset number, and copying all the environmental condition data frame groups with the preset number to obtain an environmental condition data frame group set;

and the environment information transmission unit is used for distributing each environment condition data frame group included in the environment condition data frame set to different network abstraction layer units and transmitting the different network abstraction layer units to the target server in parallel.

Another object of an embodiment of the present invention is to provide an audio/video capture terminal, which includes:

the audio and video acquisition device is used for acquiring the environment image and the environment sound under the worst all-black environment condition in the mine;

the audio and video processing device is used for receiving the environment image and the environment sound, and coding and compressing the environment image and the environment sound to obtain the information of the internal environment condition of the mine;

the wireless transmission device is used for wirelessly transmitting the environmental condition information to a client so as to complete audio and video acquisition operation.

Another object of an embodiment of the present invention is to provide an audio/video monitoring system, which includes:

the audio and video acquisition terminal is used for acquiring mine internal environment images and environment sounds, and coding and compressing the environment images and the environment sounds to obtain mine internal environment condition information;

the wireless access equipment receives the environmental condition information wirelessly transmitted by at least one audio and video acquisition terminal and transmits the environmental condition information to a monitoring server;

and the monitoring server is used for receiving the environmental condition information, decompressing and decoding the environmental condition information and timely knowing the internal condition of the mine.

According to the wireless transmission method provided by the embodiment of the invention, the environmental condition data to be transmitted is subjected to real-time transmission protocol encapsulation, and is respectively transmitted after being divided and copied, so that the transmission efficiency can be ensured, the data loss during the transmission of a large amount of data can be avoided, and the data transmission accuracy is ensured.

Drawings

Fig. 1 is an application environment diagram of a wireless transmission method according to an embodiment of the present invention;

fig. 2 is a flowchart of a wireless transmission method according to an embodiment of the present invention;

fig. 3 is another flowchart of a wireless transmission method according to an embodiment of the present invention;

fig. 4 is a flowchart of a wireless transmission method according to an embodiment of the present invention;

fig. 5 is a further flowchart of a wireless transmission method according to an embodiment of the present invention; (ii) a

FIG. 6 is a flow chart of environmental context data frame segmentation provided by an embodiment of the present invention;

fig. 7 is a block diagram of a wireless transmission device according to an embodiment of the present invention;

fig. 8 is another block diagram of a wireless transmission device according to an embodiment of the present invention;

fig. 9 is a block diagram of another structure of a wireless transmission device according to an embodiment of the present invention;

fig. 10 is a block diagram of a wireless transmission device according to an embodiment of the present invention;

fig. 11 is a block diagram of a data frame division unit according to an embodiment of the present invention;

fig. 12 is a block diagram of a structure of an audio/video acquisition terminal according to an embodiment of the present invention;

fig. 13 is a schematic diagram of a hardware structure of an audio/video acquisition terminal according to an embodiment of the present invention;

fig. 14 is a block diagram of a structure of an audio/video monitoring system provided in an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms unless otherwise specified. These terms are only used to distinguish one element from another. For example, a first xx script may be referred to as a second xx script, and similarly, a second xx script may be referred to as a first xx script, without departing from the scope of the present application.

Fig. 1 is an application environment diagram of a wireless transmission method according to an embodiment of the present invention, as shown in fig. 1, in the application environment, an audio/video acquisition terminal 110, a wireless access device 120, and a monitoring server 130 are included.

The audio/video acquisition terminal 110 has audio and video acquisition functions, and may be a camera, a recorder, or an integrated device having an audio/video acquisition function. In the embodiment of the present invention, a wireless transmission method is applied to the terminal for example.

Wireless access device 120 is a device for establishing a wireless access point in a wireless network transmission architecture, where the wireless access point is an access point of a wireless network, commonly referred to as a "hot spot". The wireless access device 120 may be a routing switch access integrated device and a pure access point device, the integrated device performs access and routing operations, the pure access device is only responsible for access of wireless clients, and the pure access device is generally used as a wireless network extension and connected to other APs or a main AP to extend a wireless coverage.

The monitoring server 130 may be an independent physical server, may also be a server cluster formed by a plurality of physical servers, and may be a cloud server providing basic cloud computing services such as a cloud server, a cloud database, a cloud storage, and a CDN. The audio and video acquisition terminal 110 transmits the acquired audio and video information, transfers and transmits the information through the wireless access device 120, and finally transmits the information to the monitoring server 130 for processing and displaying, so that the situation of the scene environment where the audio and video acquisition occurs can be known in time.