CN117979356A - Information system degradation using method under wireless weak connection condition - Google Patents
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Abstract
The invention provides a degradation using method of an information system under a wireless weak connection condition. The method comprises the steps of wireless network state sensing, wireless network state judging, message reporting strategy adjusting and the like. The invention can sense and judge the wireless network state in real time, execute the system degradation use strategy under the condition of poor wireless network state, and ensure the core service with high priority of the system not to be influenced under the wireless weak connection condition by combining and adjusting the means of video push parameters, the type of the returned message, the reporting frequency of the message and the like of the front-end sensor, thereby improving the usability of the information system.
Description
Technical Field
The invention belongs to the technical field of information system application, and particularly relates to a degradation using method of an information system under a wireless weak connection condition.
Background
A certain equipment test information system needs to process video push stream data and real-time service message data reported by a plurality of distributed deployed front-end sensors, and the information system is used in a wired broadband network environment and also needs to be used in a wireless network environment with limited bandwidth. In a wired broadband network, the information system operates stably due to stable bandwidth and network connection; however, in the wireless network environment, the situation of unstable communication state exists due to the influence of various factors such as the deployment position of the base station, the surrounding electromagnetic environment, the viewing condition, the distance between the access point and the base station, and the like, so that the situation that video is blocked, the service is abnormal and even the whole service is unavailable due to the delay, the congestion, the packet loss and the like of the wireless network can occur under the wireless weak connection condition of the information system. The reason why such a problem occurs is that the difference in the use environments of the wired and wireless networks is not considered separately, and no effective information system use method research is currently conducted for the wireless weak link network environment.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a degradation using method of an information system under the condition of wireless weak connection. The method comprises the steps of wireless network state sensing, wireless network state judging, message reporting strategy adjusting and the like. The invention can sense and judge the wireless network state in real time, execute the system degradation use strategy under the condition of poor wireless network state, and ensure the core service with high priority of the system not to be influenced under the wireless weak connection condition by combining and adjusting the means of video push parameters, the type of the returned message, the reporting frequency of the message and the like of the front-end sensor, thereby improving the usability of the information system.
A degradation use method of an information system under a wireless weak connection condition is characterized by comprising the following steps:
Step 1, wireless network state sensing: the method comprises network layer state sensing and service layer state sensing, wherein the network layer state sensing is to monitor signal level intensity data of a wireless access module in real time by utilizing a front-end sensor, and the service layer state sensing is to calculate message average transmission delay and message average sending success rate by establishing a real-time service data message receiving confirmation feedback mechanism;
Step 2, judging the wireless connection state: generating a wireless weak connection state judgment rule by utilizing the combination configuration of logic operation and comparison operation, and operating the judgment rule to judge the wireless connection state, wherein the method specifically comprises the following steps:
rule 1: when the signal level is > -60dBm, the average successful sending rate is >99 percent, and the message average feedback delay is <500ms, judging that the wireless connection state is good;
rule 2: when the signal level is > -65dBm and (the average successful sending rate is >97 percent or the average feedback delay of the message is <800 ms), judging that the wireless connection state is better;
rule 3: when the signal level is < -70dBm or (the average successful sending rate is more than 95 percent and the average feedback delay of the message is less than 800 ms), judging that the wireless connection state is general;
Rule 4: when the signal level is < -75dBm and (the average successful sending rate is less than 92% or the average feedback delay of the message is more than 1000 ms), judging that the wireless connection state is poor;
Rule 5: when the signal level is < -80dBm, the average successful sending rate is less than 90 percent, and the average feedback delay of the message is more than 1000ms, the wireless connection state is judged to be poor;
Step 3, message reporting strategy adjustment: dividing service data messages into two main types of core service data messages and non-core service data messages, and reducing the reporting rate of the core service data messages to half of the initial reporting rate only when the wireless connection state is judged to be bad; for the non-core service data message, executing different system degradation using strategies according to different network connection states, wherein the method specifically comprises the following steps:
Strategy 1: when the wireless connection state is good, adjusting the video resolution to 1080P, the video frame rate to 30fps, and transmitting all service data messages according to the normal rate;
strategy 2: when the wireless connection state is better, adjusting the video resolution to 720P, the video frame rate to 30fps, and transmitting all service data messages according to the normal rate;
Strategy 3: when the wireless connection state is normal, adjusting the video resolution to 540P, the video frame rate to 30fps, and transmitting all service data messages according to the normal rate;
strategy 4: when the wireless connection state is poor, adjusting the video resolution to 540P, the video frame rate to 24fps, canceling the appointed partial video push stream, and transmitting all service data messages according to the normal rate;
strategy 5: when the wireless connection state is poor, the video resolution is adjusted to 540P, the video frame rate is adjusted to 24fps, the appointed partial video push stream is canceled, the partial non-core message transmission is canceled, and the real-time message rate of the core service is reduced.
Further, the specific process of service layer state sensing is as follows: the method comprises the steps that a sending end sends a message mark message sending time, and a receiving end sends a receiving confirmation message to the sending end after receiving a service message, wherein the receiving confirmation message marks the sending time and the receiving confirmation time of the confirmed message; after receiving the acknowledgement message, the sending end extracts the time stamp information to calculate the message transmission delay, if the acknowledgement message is not received, the retransmission is started, if the retransmission is unsuccessful for 3 times, the message is considered to be failed to be sent, and the sending end records the average message sending success rate and the average message transmission delay.
Further, the detection result, working state and working parameters of the equipment reported by the front-end sensor are core service data messages, and the video and other data reported by the front-end sensor are non-core service data messages.
The beneficial effects of the invention are as follows: the wireless network connection state sensing and judging are carried out firstly, and then the decision making application is further carried out on a system degradation using strategy applicable to the current network state, so that the self-adaptive adjustment of the system service flow according to the external network condition can be realized, the normal circulation of core service data is ensured, and the situation that all indiscriminate services are affected is avoided; because an open configurable strategy mode is adopted, the method can be applied to the actual situation to search the optimal strategy continuously; the invention can improve the usability of the information system under the condition of wireless weak connection.
Drawings
FIG. 1 is a flow chart of a method for degrading and using an information system under a wireless weak connection condition of the present invention;
FIG. 2 is a schematic diagram of wireless network state awareness;
FIG. 3 is a schematic diagram of a wireless network status decision rule;
fig. 4 is a diagram of system degradation usage adjustment parameter types.
Detailed Description
The invention will be further illustrated with reference to the following figures and examples, which include but are not limited to the following examples.
The invention provides a degradation using method of an information system under a wireless weak connection condition, as shown in fig. 1, and the specific implementation process is as follows:
1. Wireless network state awareness
As shown in fig. 2, the wireless network state awareness includes network layer state awareness and traffic layer state awareness. The network layer state sensing is to monitor the signal level intensity data of the wireless access module in real time by using a front-end sensor. The service layer sensing is to calculate the average transmission delay and the average sending success rate of the message by establishing a real-time service data message receiving confirmation feedback mechanism, and the specific process is as follows: the method comprises the steps that a sending end sends a message mark message sending time, and a receiving end sends a receiving confirmation message to the sending end after receiving a service message, wherein the receiving confirmation message marks the sending time and the receiving confirmation time of the confirmed message; after receiving the acknowledgement message, the sending end extracts the time stamp information to calculate the message transmission delay, if the acknowledgement message is not received, the retransmission is started, if the retransmission is unsuccessful for 3 times, the message is considered to be failed to be sent, and the sending end records the average message sending success rate and the average message transmission delay.
2. Radio connection status determination
Establishing customizable wireless connection state judging rules, namely: by combining logical operations such as logical AND, logical OR and the like with comparison operations such as greater than and less than the like, the configuration generates a wireless weak connection status determination rule, and the operation determination rule may output a wireless connection status determination result. The decision process is shown in fig. 3, and specific decision rules are shown in table 1.
TABLE 1
The threshold value, the comparison operation and the logic operation in each judgment rule can be adjusted according to actual conditions, so that continuous optimization and perfection of the judgment rules are realized.
3. Message reporting policy adjustment
The overall thought of message reporting strategy adjustment is: the service data messages are divided into two main categories of core service data messages and non-core service data messages, generally, the equipment detection result, working state and working parameters reported by the front-end sensor can be divided into the core service data messages, and the video and other data reported by the front-end sensor are divided into the non-core service data messages. Aiming at the core service data messages of the system, degradation is prevented as much as possible, and the reporting rate of the messages is reduced to half of the initial reporting rate only when the judging result of the wireless connection state is poor; for the system non-core service data message, different system degradation use strategies are executed according to different network connection states, namely, a sending end adjustment strategy is designed for the video service and the service data message, and the adjustment parameter types are as shown in fig. 4, and mainly include: adjusting video resolution, adjusting video frame rate, stopping/recovering video push flow, adjusting real-time service message sending frequency, stopping/recovering sending appointed real-time service message, and the like, and forming final execution strategies corresponding to different network state levels by flexibly combining a plurality of atomic strategies, wherein the final execution strategies are shown in a table 2. In actual use, the strategy can be dynamically and automatically executed according to the requirement, and the strategy can be manually adjusted or the designated strategy can be locked and executed.
TABLE 2
According to the information system degradation using method under the wireless weak connection condition, corresponding configuration execution software can be designed and developed and deployed in the front-end sensor, and the information system degradation using method comprises three modules of strategy configuration, strategy execution and state monitoring:
a) Policy configuration: configuring message grades, configuring network state judging rules and configuring a system degradation using strategy;
b) Policy enforcement: collecting wireless signal level, calculating message average transmission delay, calculating message average sending success rate, executing network state judgment rule, and executing system degradation use strategy;
c) State monitoring: and displaying network state data such as the current wireless signal level, the message average transmission delay, the message average transmission success rate and the like in real time, displaying the network state judgment result in real time, and displaying the currently executed system use strategy in real time.
The software operates as follows:
1) Configuring the importance level of the message;
2) Configuring a wireless weak connection state judgment rule;
3) Configuring a system degradation use strategy;
4) Operating an information system;
5) Perceptually determining a wireless network state and executing a downgrade usage policy;
6) Modifying the policy rules as required;
7) Locking and executing a designated strategy according to the need;
8) Optimizing decision rules and usage policies.
Claims (3)
1. A degradation use method of an information system under a wireless weak connection condition is characterized by comprising the following steps:
Step 1, wireless network state sensing: the method comprises network layer state sensing and service layer state sensing, wherein the network layer state sensing is to monitor signal level intensity data of a wireless access module in real time by utilizing a front-end sensor, and the service layer state sensing is to calculate message average transmission delay and message average sending success rate by establishing a real-time service data message receiving confirmation feedback mechanism;
Step 2, judging the wireless connection state: generating a wireless weak connection state judgment rule by utilizing the combination configuration of logic operation and comparison operation, and operating the judgment rule to judge the wireless connection state, wherein the method specifically comprises the following steps:
rule 1: when the signal level is > -60dBm, the average successful sending rate is >99 percent, and the message average feedback delay is <500ms, judging that the wireless connection state is good;
rule 2: when the signal level is > -65dBm and (the average successful sending rate is >97 percent or the average feedback delay of the message is <800 ms), judging that the wireless connection state is better;
rule 3: when the signal level is < -70dBm or (the average successful sending rate is more than 95 percent and the average feedback delay of the message is less than 800 ms), judging that the wireless connection state is general;
Rule 4: when the signal level is < -75dBm and (the average successful sending rate is less than 92% or the average feedback delay of the message is more than 1000 ms), judging that the wireless connection state is poor;
Rule 5: when the signal level is < -80dBm, the average successful sending rate is less than 90 percent, and the average feedback delay of the message is more than 1000ms, the wireless connection state is judged to be poor;
Step 3, message reporting strategy adjustment: dividing service data messages into two main types of core service data messages and non-core service data messages, and reducing the reporting rate of the core service data messages to half of the initial reporting rate only when the wireless connection state is judged to be bad; for the non-core service data message, executing different system degradation using strategies according to different network connection states, wherein the method specifically comprises the following steps:
Strategy 1: when the wireless connection state is good, adjusting the video resolution to 1080P, the video frame rate to 30fps, and transmitting all service data messages according to the normal rate;
strategy 2: when the wireless connection state is better, adjusting the video resolution to 720P, the video frame rate to 30fps, and transmitting all service data messages according to the normal rate;
Strategy 3: when the wireless connection state is normal, adjusting the video resolution to 540P, the video frame rate to 30fps, and transmitting all service data messages according to the normal rate;
strategy 4: when the wireless connection state is poor, adjusting the video resolution to 540P, the video frame rate to 24fps, canceling the appointed partial video push stream, and transmitting all service data messages according to the normal rate;
strategy 5: when the wireless connection state is poor, the video resolution is adjusted to 540P, the video frame rate is adjusted to 24fps, the appointed partial video push stream is canceled, the partial non-core message transmission is canceled, and the real-time message rate of the core service is reduced.
2. The method for degrading and using an information system under a weak wireless connection condition as set forth in claim 1, wherein: the specific process of the service layer state sensing is as follows: the method comprises the steps that a sending end sends a message mark message sending time, and a receiving end sends a receiving confirmation message to the sending end after receiving a service message, wherein the receiving confirmation message marks the sending time and the receiving confirmation time of the confirmed message; after receiving the acknowledgement message, the sending end extracts the time stamp information to calculate the message transmission delay, if the acknowledgement message is not received, the retransmission is started, if the retransmission is unsuccessful for 3 times, the message is considered to be failed to be sent, and the sending end records the average message sending success rate and the average message transmission delay.
3. A method for degrading and using an information system under a weak radio connection condition as claimed in claim 1 or 2, wherein: the equipment detection result, the working state and the working parameters reported by the front-end sensor are core service data messages, and the video and other data reported by the front-end sensor are non-core service data messages.
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