CN114189911A - Wireless monitoring equipment channel interference self-adaptive system and control method - Google Patents
Wireless monitoring equipment channel interference self-adaptive system and control method Download PDFInfo
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- CN114189911A CN114189911A CN202111505570.2A CN202111505570A CN114189911A CN 114189911 A CN114189911 A CN 114189911A CN 202111505570 A CN202111505570 A CN 202111505570A CN 114189911 A CN114189911 A CN 114189911A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0058—Transmission of hand-off measurement information, e.g. measurement reports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/0085—Hand-off measurements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/06—Reselecting a communication resource in the serving access point
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Abstract
The invention discloses a channel interference self-adaptive system and a control method of wireless monitoring equipment, wherein the control method comprises a channel detection step, after networking of NVR equipment is completed or starting up reaches preset time, the signal quality of each channel around the NVR equipment is detected, and a detection mechanism capable of detecting the quality of other channels when associated equipment is started at fixed time is started; a channel scoring step, namely collecting and scoring the environmental factors of each channel, firstly collecting and scoring the environmental factors of the current channel, and then switching to the environmental factor collection and scoring of other channels; an optimal channel switching step, namely after the NVR equipment sends the configuration data to each IPC equipment, switching the channel to a scoring optimal channel, and switching the IPC equipment to a channel consistent with the NVR equipment after receiving the configuration data; when the current channel associated with the NVR device is optimal, the channel is not switched. The channel with the best quality can be selected for transmission according to the channel quality in the using process, so that the stability of transmission is improved.
Description
Technical Field
The invention relates to the technical field of control, in particular to a channel interference self-adaptive control method for wireless monitoring equipment.
Background
In the existing wireless connection, the current channel quality is obtained or the current equipment is selected to be connected by using a wireless channel less frequently, the channel is not actively switched after the connection, the channel selection is carried out unless the channel is restarted, and if the associated equipment is on one wireless channel, other channels cannot be detected. If the quality of the currently associated wireless channel is poor and the interference is increased, the transmission quality of the channel is poor, and the channel cannot be transmitted on other channels better, so that the transmission quality is improved. The basis for selecting the channel is to make a judgment according to the number of the channels and the signal strength, and whether the channel is occupied or influenced by equipment which is not a signal and has energy interference is not considered.
Disclosure of Invention
The invention mainly solves the technical problem of providing a channel interference self-adaptive control method of wireless monitoring equipment, which can avoid the deterioration of wireless transmission quality caused by the interference change of environment of a used channel, can not detect other channels and switch to an optimal channel in the use of the equipment, and improves the transmission quality.
In order to solve the above problem, the present invention provides a channel interference adaptive system for wireless monitoring equipment, comprising: an NVR device and a network camera, wherein,
the NVR equipment detects surrounding channel signals in real time after being started, starts other channel quality detection mechanisms of the timing detection associated equipment, collects environmental factors and scores each channel respectively through weighting;
and the at least one network camera switches the current channel to the channel with the best score according to the channel quality score determined by the NVR equipment, and associates the current channel with the best score.
The invention provides a channel interference self-adaptive control method of wireless monitoring equipment, which comprises the following steps,
a channel detection step, namely detecting the signal quality of each channel around the NVR equipment after the networking of the NVR equipment is completed or the NVR equipment is started up for a preset time, and starting a detection mechanism capable of detecting the quality of other channels when the NVR equipment is associated with the equipment at a fixed time;
and a channel grading step, namely collecting and grading the environmental factors of each channel through a register of the MAC layer, firstly collecting the environmental factors of the current channel, grading the environmental factors of the current channel, switching to the environmental factor collection and grading of other channels, and returning to the current channel after the environmental factors of other channels are collected and graded.
An optimal channel switching step, namely after the NVR equipment sends the configuration data to each IPC equipment, switching the channel to a scoring optimal channel, and switching the IPC equipment to a channel consistent with the NVR equipment when the IPC equipment receives the configuration data; when the current channel associated with the NVR device is optimal, the channel is not switched.
Further, the channel environment factor score includes: and (4) obtaining the channel score value by collecting the weighted score of each channel environment factor until all channels are detected, and sequencing all detected channel scores to obtain one channel with the best score.
Further, the channels include wireless 2.4G, wifi and 5G channels.
Further, the environmental factors include energy intensity, Wifi data packet number, signal intensity, and SSID number of the current Wifi channel.
Further, the current channel and the channel of the detection mechanism adopt an alternate switching mode to keep the stability of the connection of the current communication channel.
Further, the collection and scoring of the environmental factors of each channel are realized by a register of a MAC layer.
The invention discloses a channel interference self-adaptive system and a control method of wireless monitoring equipment, wherein the control method comprises a channel detection step, after networking of NVR equipment is completed or starting up reaches preset time, the signal quality of each channel around the NVR equipment is detected, and a detection mechanism capable of detecting the quality of other channels when associated equipment is started at fixed time is started; a channel grading step, namely collecting and grading the environmental factors of each channel through a register of an MAC layer, firstly collecting the environmental factors of the current channel, grading the environmental factors of the previous channel, switching to the environmental factor collection and grading of other channels, and returning to the current channel after the environmental factors of other channels are collected and graded; an optimal channel switching step, namely after the NVR equipment sends the configuration data to each IPC equipment, switching the channel to a scoring optimal channel, and switching the IPC equipment to a channel consistent with the NVR equipment when the IPC equipment receives the configuration data; when the current channel associated with the NVR device is optimal, the channel is not switched. The channel with the best quality can be selected for transmission according to the channel quality in the using process, so that the stability of transmission is improved.
Drawings
In order to illustrate the embodiments of the invention or the technical solutions in the prior art more clearly, the drawings that are needed in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the description only show some embodiments of the invention and therefore should not be considered as limiting the scope, and for a person skilled in the art, other related drawings can also be obtained from these drawings without inventive effort.
Fig. 1 is a schematic diagram of an embodiment of a channel interference adaptive system of a wireless monitoring device according to the present invention.
Fig. 2 is a schematic diagram of NVR detection flow according to an embodiment of a channel interference adaptive control method of a wireless monitoring device.
Fig. 3 is a schematic flow chart of a message received by the network camera.
Fig. 4 is a flow diagram of a probing mechanism.
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
The following claims of the present invention are further detailed in conjunction with the detailed description of the embodiments and the accompanying drawings, and it is to be understood that the described embodiments are only a subset of the embodiments of the present invention, and not all embodiments. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention without any inventive work also belong to the protection scope of the present invention.
It should be understood that in the description of the embodiments of the present invention, all directional terms, such as "upper", "lower", "left", "right", "front", "back", etc., indicate orientations or positional relationships based on the orientations, positional relationships, or the orientations or positional relationships that the products of the present invention usually use, which are only used for the convenience of simplifying the description of the present invention, and do not indicate or imply that the devices, elements, or components that are referred to must have specific orientations and specific orientation configurations, and should not be construed as limiting the present invention. For the purpose of explaining only the relative positional relationship between the respective components, the movement, and the like, as shown in the drawings, when the specific posture is changed, the directional indication may be changed accordingly.
Furthermore, the use of ordinal terms such as "first", "second", etc., in the present application is for distinguishing between similar elements and not intended to imply or imply relative importance or the number of technical features indicated. The features defining "first" and "second" may be explicit or implicit in relation to at least one of the technical features. In the description of the present invention, "a plurality" means at least two, i.e., two or more, unless expressly defined otherwise; the meaning of "at least one" is one or both.
In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be understood in a broad sense, and for example, the positional relationship between the components may be fixed relatively, or the components may be physically fixed, or may be detachably connected, or may be integrated into a single structure; the connection can be mechanical connection or electrical signal connection; either directly or indirectly through intervening media or components; the two elements can be communicated with each other or can be mutually interacted, and unless the specification explicitly defines otherwise, the corresponding function or effect cannot be realized in other understanding manners, and the specific meaning of the terms in the invention can be understood by a person skilled in the art according to specific conditions.
The controller and the control circuit that may be involved in the present invention are conventional control techniques or units for those skilled in the art, and the control circuit of the controller may be implemented by those skilled in the art by using conventional techniques, such as simple programming. Software or programs related to the implementation of the control result in cooperation with hardware, such as software or program control procedures related to the implementation of the control result, which are not described in detail in the specification, belong to the technical field of the prior art or the routine of a person with ordinary skill in the art. The power supply also adopts the prior art, and the main technical point of the invention lies in the improvement of mechanical devices, so the invention does not need to describe the specific circuit control relation and circuit connection in detail.
As shown in fig. 1, the present invention provides an embodiment of a channel interference adaptive system for a wireless monitoring device. The channel interference adaptive system of the wireless monitoring equipment comprises: an NVR device and a network camera, wherein,
the NVR equipment detects surrounding channel signals in real time after being started, starts other channel quality detection mechanisms of the timing detection associated equipment, collects environmental factors and scores each channel respectively through weighting;
and the at least one network camera switches the current channel to the channel with the best score according to the channel quality score determined by the NVR equipment, and associates the current channel with the best score.
Specifically, after an NVR (Network Video Recorder) device completes networking or is powered on for a predetermined time, the NVR device detects signal quality of each channel around, such as wireless 2.4G, Wifi and 5G signal quality, and starts a detection mechanism capable of detecting quality of other channels at a fixed time when the NVR device is associated with the device, collects environment factors of each channel through a register of an MAC layer, such as energy intensity, Wifi data packet number, signal intensity, SSID number of a current Wifi channel, and the like, and performs scoring by adopting a weighting method, wherein the current channel environment factors are collected first, the previous channel environment factors are scored, and then the current channel environment factors are switched to environment factor collection and scoring of other channels; after the optimal channel is determined, the NVR equipment sends configuration data to each IPC equipment, and when the channel is switched to the scoring optimal channel, the IPC (IP Camera) equipment receives the configuration data and also switches to the channel consistent with the NVR equipment; when the current channel associated with the NVR device is optimal, the channel is not switched. According to the scheme, when the wireless equipment is associated for communication, the quality of other channels can be detected, the channel with the optimal quality can be found out, the associated channel is switched to the optimal channel, the channel with the best quality can be selected for transmission according to the channel quality, and therefore the quality of wireless transmission is more reliable and stable. The method and the device avoid the situation that the existing device cannot be switched in the process of associated communication once the channel is determined, when the channel receives long-time interference, the channel environment is poor, the transmission quality is poor, and even the transmission can be disconnected or disconnected.
When the scheme judges the channel quality, environmental factors influencing the channel quality are increased, such as signal energy intensity, WiFi data packet quantity and the like. Therefore, the channel can be judged more accurately to achieve the optimal effect.
The specific working process is described by taking three channels of the NVR device as an example, the NVR device and the IPC device are associated with each other and are a current channel A, namely the NVR device is originally in the current channel A before detection, the NVR device returns to the current channel A after collecting and scoring the environmental factors in the detection channel B, the NVR device detects the channel C next time, and the NVR device returns to the current channel A after collecting and scoring the environmental factors, so that the data link of the current channel A is not easy to disconnect.
As shown in fig. 2-4, the present invention provides an embodiment of a channel interference adaptive control method for a wireless monitoring device.
The channel interference adaptive control method of the wireless monitoring equipment comprises the following steps,
a channel detection step, namely detecting the signal quality of each channel around the NVR equipment after the networking of the NVR equipment is completed or the NVR equipment is started up for a preset time, and starting a detection mechanism capable of detecting the quality of other channels when the NVR equipment is associated with the equipment at a fixed time;
a channel scoring step, namely collecting and scoring the environmental factors of each channel through a register of an MAC layer, wherein the current channel environmental factors are collected, the former channel environmental factors are scored, and then the environmental factors of other channels are collected and scored; specifically, the specific working process is described by taking three channels of the NVR device as an example, the NVR device and the IPC device are associated with each other, the NVR device and the IPC device are the current channel a, that is, the NVR device is originally in the current channel a before detection, the NVR device returns to the current channel a after collecting and scoring the environmental factors in the detection channel B, the channel C is detected next time, and the NVR device returns to the current channel a after collecting and scoring the environmental factors, so that the data link between the NVR device and the IPC device in the current channel a is not easily disconnected.
An optimal channel switching step, namely after the NVR equipment sends the configuration data to each IPC equipment, switching the channel to a scoring optimal channel, and switching the IPC equipment to a channel consistent with the NVR equipment when the IPC equipment receives the configuration data; when the current channel associated with the NVR device is optimal, the channel is not switched.
Specifically, the channel environment factor score includes: and (4) obtaining the channel score value by collecting the weighted score of each channel environment factor until all channels are detected, and sequencing all detected channel scores to obtain one channel with the best score. The channels include wireless 2.4G, wifi and 5G channels. The environment factors comprise energy intensity, the number of Wifi data packets, signal intensity and the number of SSIDs of a current Wifi channel.
In this embodiment, the current channel and the channel of the detection mechanism adopt an alternate switching manner to maintain the stability of the connection of the current communication channel.
According to the scheme, when the wireless equipment is associated for communication, the quality of other channels can be detected, the channel with the optimal quality can be found out, the associated channel is switched to the optimal channel, the channel with the best quality can be selected for transmission according to the channel quality, and therefore the quality of wireless transmission is more reliable and stable. The method and the device avoid the situation that the existing device cannot be switched in the process of associated communication once the channel is determined, when the channel receives long-time interference, the channel environment is poor, the transmission quality is poor, and even the transmission can be disconnected or disconnected. After the NVR device is started, the wireless channel sounding starts to detect the current channel quality and starts timing sounding, which employs a timing sounding mechanism that can also detect the quality of other channels when the device is associated. And after all channels are detected, scoring and ranking all channels, and selecting a good channel for switching. The related equipment checks the signal quality of all channels by timing, under the condition that the related current channel is not disconnected, registers of other wireless channel frequency points are set to receive the environment factors, and after one channel environment factor is collected, each channel frequency point can sample the environment factors for 50 times in 10 milliseconds within preset time such as 100 milliseconds, the current channel is switched back, namely, the current channel and other channels are detected in a cross mode, so that the current channel is not interrupted. By analogy, scores are ranked by weighting the collected environment factors of each channel, and the channel with the highest score is usually the best channel, so that the best wireless communication channel is found.
After the equipment is powered on and the equipment system is started, the wireless channel detection and the timer are started to detect regularly. The sounding mechanism will perform each channel sounding based on the wireless 2.4G and 5G channels. After switching to the sounding channel, collecting the channel environment factors, wherein the environment factors comprise: energy intensity, Wifi data packet quantity, signal intensity, the SSID number of current Wifi channel constitute. And obtaining a score through weighting and grading, and switching the channel and the channel of the detection mechanism alternately according to a channel detection mechanism mode, wherein the mode aims to prevent the influence on the connection of the originally communicating channels until all the channels are detected, counted and sorted, so that the channel with the best score is obtained. When the current channel is the optimal channel, the channel is not required to be configured and modified, and the channel detection is completed. When the current channel is not optimal, the current channel needs to be configured, a message modification configuration file is sent, the channel is modified, data packet information is sent to an IPC device to switch channels, and the IPC device switches channels according to the data packet information.
The IPC equipment receives the message flow: after the IPC equipment receives the wireless switching data frame, the switching channel information is extracted, the IPC equipment inter-hierarchy communication sends a message to modify a configuration file modification channel, the NVR equipment is associated again, and data packet communication is carried out with the NVR equipment after the channel switching before the association.
The detection mechanism flow is as follows:
the control mechanism switches to a target channel according to a switching sequence and environmental factors and a strategy sequence by the channel, collects the energy intensity of the channel, the number of Wifi data packets, the signal intensity, the number of SSIDs of the current Wifi channel and the like, carries out weighting scoring on the factors to obtain scoring sequencing, and the scoring height is expressed as the channel quality, thereby determining the optimal channel. When the scheme judges the channel quality, environmental factors influencing the channel quality are increased, such as signal energy intensity, WiFi data packet quantity and the like. Therefore, the channel can be judged more accurately to achieve the optimal effect. And obtaining a score through weighting and grading, and switching the channel and the channel of the detection mechanism alternately according to a channel detection mechanism mode, wherein the mode aims to prevent the influence on the connection of the originally communicating channels until all the channels are detected, counted and sorted, so that the channel with the best score is obtained. In the entire system method, the NVR device actively detects the channel quality.
When the NVR equipment is started, after networking is completed or starting up is carried out for a preset time, for example, after 10 minutes, a channel detection scanning scoring function is started, the equipment collects signals of the environment through a register of an MAC layer, scores the current channel collection by using an algorithm, switches to other channels, collects and scores channel environment factors, analogizes, scores of all channels are carried out, and an optimal channel is selected for switching in a sorting mode after the channels are collected. And the NVR equipment wireless equipment sends the configuration to each IPC equipment and then performs channel switching, and the IPC equipment also switches to the best channel of the NVR equipment after receiving the configuration.
Detecting the advantages: the NVR device and the IPC device are already associated. The method comprises the steps of detecting each channel under the condition that the association of equipment is not influenced, collecting signals of a current channel, scoring the current channel after collecting environmental factors by using an algorithm, then cutting to other channels, scoring after collecting the environmental factors by using signals, and so on, scoring each channel, summarizing, sorting and selecting an optimal channel for switching.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; 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: it is to be understood that modifications may be made to the above-described arrangements in the embodiments or equivalents may be substituted for some of the features of the embodiments without departing from the spirit or scope of the present invention.
Claims (7)
1. A wireless monitoring device channel interference adaptation system, comprising: NVR equipment and at least one network camera, wherein,
the NVR equipment detects surrounding channel signals in real time after being started, starts other channel quality detection mechanisms of the timing detection associated equipment, collects environmental factors and scores each channel respectively through weighting;
and the at least one network camera switches the current channel to the channel with the best score according to the channel quality score determined by the NVR equipment, and associates the current channel with the best score.
2. A channel interference adaptive control method of a wireless monitoring device comprises the following steps,
a channel detection step, namely detecting the signal quality of each channel around the NVR equipment after the networking of the NVR equipment is completed or the NVR equipment is started up for a preset time, and starting a detection mechanism capable of detecting the quality of other channels when the NVR equipment is associated with the equipment at a fixed time;
a channel scoring step, namely collecting and scoring the environmental factors of each channel, wherein the current channel environmental factors are collected firstly, the former channel environmental factors are scored, and then the environmental factors of other channels are collected and scored;
an optimal channel switching step, namely after the NVR equipment sends configuration data to each network camera, switching the channel to a scoring optimal channel, and switching the network camera to a channel consistent with the NVR equipment when the network camera receives the configuration data; when the current channel associated with the NVR equipment is the best score, the channel is not switched.
3. The adaptive control method for channel interference of wireless monitoring equipment according to claim 2, wherein the scoring of the channel environment factor comprises: and (4) obtaining the channel score value by collecting the weighted score of each channel environment factor until all channels are detected, and sequencing all detected channel scores to obtain one channel with the best score.
4. The adaptive control method for channel interference of wireless monitoring equipment according to claim 3, wherein the channels comprise wireless 2.4G, wifi and 5G channels.
5. The adaptive control method for channel interference of wireless monitoring equipment according to claim 3, wherein the environmental factors comprise energy intensity, number of Wifi data packets, signal intensity, and number of SSIDs of a current Wifi channel.
6. The adaptive control method for channel interference of wireless monitoring equipment according to claim 3, wherein the current channel and the channel of the sounding mechanism adopt an alternate switching manner to maintain the stability of the connection of the currently communicating channel.
7. The adaptive control method for channel interference of wireless monitoring equipment according to claim 2, wherein the collecting and scoring of the environmental factors of each channel are implemented by a register of a MAC layer.
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| US20080117879A1 (en) * | 2006-11-16 | 2008-05-22 | Industrial Technology Research Institute | Handoff method in a wireless local area network and apparatus using the same |
| CN110177071A (en) * | 2018-02-20 | 2019-08-27 | 网件公司 | Based on the channel selection of video in wireless network connection camera system |
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