CN117336202B - Multichannel management system and method based on vibration meter controller - Google Patents
Multichannel management system and method based on vibration meter controller Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
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- G—PHYSICS
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- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0876—Network utilisation, e.g. volume of load or congestion level
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
- H04L47/76—Admission control; Resource allocation using dynamic resource allocation, e.g. in-call renegotiation requested by the user or requested by the network in response to changing network conditions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
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Abstract
The invention discloses a multichannel management system based on a vibration meter controller, which comprises a communication duration detection model, a transmission duration duty ratio module, a data transmission analysis module, a transmission steady state judgment module, a transmission evaluation management module and a transmission evaluation management module. According to the method, the risk degree of the transmission time length of the data transmitted by the vibration meter to the controller in the communication time slot is analyzed, the communication time slots of the vibration meter which establishes multi-channel transmission with the controller are dynamically managed according to the risk degree of the transmission time length and the channel transmission evaluation coefficients between the controller and each vibration meter, the transmission data requirements of vibration periods and vibration data amounts at different vibration positions are met, the dynamic distribution of the multi-channel transmission time length of the vibration meter and the controller is realized, the transmission efficiency is optimized, the integrity of the transmission data is ensured, and the waiting time of the transmission gaps of two adjacent vibration meters can be reduced.
Description
Technical Field
The invention belongs to the technical field of controller communication, and relates to a multichannel management system and method based on a vibration meter controller.
Background
The laser vibration measuring instrument carries out vibration detection on multiple directions of the sample, outputs digital signals, and when the multiple laser vibration measuring instruments detect the sample, in order to ensure the real-time performance and synchronous detection of the detection of each laser vibration measuring instrument, the vibration analysis of the sample is conveniently carried out according to the data synchronously detected by each vibration measuring instrument. At present, when a controller is in communication connection with a plurality of laser vibration meters, the communication time slots allocated to each laser vibration meter by the controller are fixed, the data volume required to be transmitted to the controller is different due to different detection positions of the laser vibration meters, and further the required communication time length is also different, and by adopting the setting of the fixed communication time slots, the actual communication time length between the vibration meters and the controller is easily smaller than the set communication time slot, so that the communication time length is wasted, the communication transmission waiting time length of other vibration meters is increased, and the transmission efficiency is influenced; the conditions that the actual communication duration is critical, the actual communication duration is longer than the set communication time slot and the like are easy to occur, the risk of communication data transmission is increased, the communication data transmission is abnormal, and in order to solve the problems, the communication time slot of the vibration meter is dynamically adjusted according to the actual data quantity transmitted by each vibration meter.
Disclosure of Invention
The invention discloses a multichannel management system and a multichannel management method based on a vibration meter controller, which solve the problems in the prior art.
The invention provides a multichannel management system based on a vibration meter controller, which comprises a communication duration detection model, a transmission duration duty ratio module, a data transmission analysis module, a transmission steady state judgment module and a transmission evaluation management module, wherein the communication duration detection model is used for detecting the transmission duration duty ratio of the communication duration;
the communication duration detection module is used for detecting the actual communication duration of each vibration meter and the controller under a preset communication time slot in real time;
the transmission time length proportion module is used for analyzing the actual communication time length of each vibration meter and the controller and the set communication time slot, analyzing the time length proportion of data transmission in the communication time slot, and predicting the risk degree of the transmission time length in the communication time slot based on the time length proportion;
the data transmission analysis module is used for extracting data in the communication transmission process of each vibration meter and the controller, analyzing whether the transmitted data has transmission abnormality, positioning the data with transmission abnormality of each vibration meter and the controller, and counting the abnormal times, abnormal data quantity and the times of repeated transmission required under the single transmission data abnormality of each vibration meter;
the transmission steady state judging module is used for analyzing whether transmission priority demands exist between the controller and each vibration meter, carrying out transmission priority adjustment on each vibration meter with the transmission priority demands, guaranteeing that the vibration meter with high transmission priority demands carries out data transmission preferentially than the vibration meter with low transmission priority demands, and analyzing steady state coefficients of data transmitted by each vibration meter and the controller under the actual transmission duration of each vibration meter.
Further, the ratio of the actual communication duration of the same vibration meter to the set communication time slot is related to the risk coefficient of the transmission duration in the communication time slot between the vibration meter and the controller.
Further, the analysis method of communication transmission between each vibration meter and the controller comprises the following specific steps:
step 1, acquiring data acquired by a vibration meter in a single vibration period, and receiving the data sent by the vibration meter by a controller;
step 2, judging whether the data collected by the same vibration meter is the same as the data sent by the vibration meter and received by the controller, if so, carrying out anomaly detection on the transmission data and positioning the anomaly data;
step 3, the controller sends a control instruction to the vibration meter, and the vibration meter retransmits the positioned abnormal data;
and step 4, judging whether the retransmission times are smaller than a set transmission times threshold, if so, repeating the step 2 until the retransmission times are larger than the set transmission threshold or the vibration meter retransmits the positioned abnormal data normally.
Further, the steady state judging method for the transmission data between each vibration meter and the controller comprises the following steps:
step 1, calculating transmission time tij, i required by each vibration meter for transmitting data detected in a complete vibration period is the number of the vibration meters, i=1, 2, and n, j is the number of times that the vibration meters completely transmit the data detected in the vibration period to a controller, j=1, 2, and m;
step 2, analyzing the average transmission time length of each vibration meter for transmitting a complete vibration period；
Step 3, calculating the offset of the communication transmission time length；
Step 4, counting the abnormal times of data transmission to the controller by the same vibration meter, the abnormal data quantity of single transmission and the times required by repeated transmission of the abnormal data quantity;
and 5, analyzing the transmission steady state coefficients of the vibration meters and the controller under the transmission data by adopting a transmission steady state evaluation model.
Further, the transmission steady state evaluation model in step 5 is:e is a natural number, E is a preset solidFix transmission gap, < >>For the number of times the controller receives the cyclical transmissions of each vibrometer,in order to transmit the ith vibration meter to the controller for the abnormal number of data transmission times C, v is the data volume transmitted in the unit time of the current communication network, wi is the data volume acquired by the ith vibration meter in one vibration period (the data volume required to be transmitted once), and the data acquired by the vibration meter in a single vibration period need to be transmitted to the controller)>Expressed as the abnormal data quantity of the ith vibration meter in the transmission of the jth complete vibration cycle,/th vibration meter>Expressed as the number of times required for the ith meter to repeat transmission of the abnormal data amount in the j-th complete vibration cycle.
Further, the system also comprises a transmission evaluation management module, wherein the transmission evaluation management module is used for extracting the risk degree of the transmission time length of each vibration meter and the controller in the communication time slot and the steady state coefficient of the transmission data of each vibration meter and the controller under the actual transmission time length, analyzing the communication transmission quality between the controller and each vibration meter according to the transmission time length risk degree of each vibration meter and the steady state coefficient of the transmission data, obtaining the channel transmission evaluation coefficient between the controller and each vibration meter, and dynamically managing the communication time slot of the vibration meter establishing multi-channel transmission with the controller based on the channel transmission evaluation coefficient.
Further, the channel transmission evaluation coefficient in the communication process of the controller and each vibration meter is calculated:e is a natural number, and the channel transmission estimation coefficient is positively correlated with the communication transmission quality, ++>For the risk factor of the transmission duration in the communication time slot, +.>Expressed as a transmission steady state coefficient under the transmission data of the ith vibration meter and the controller.
Further, the dynamic management method of the communication time slot between the controller and each vibration meter comprises the following steps of;
step U1, judging whether a communication transmission evaluation coefficient in the communication process of the controller and each vibration meter is smaller than a set lower limit threshold value, if so, executing the step U2, and if so, executing the step U3, wherein the lower limit threshold value is smaller than the upper limit threshold value;
step U2, adding the communication time slot between the vibration meter and the controller, which is smaller than the set lower threshold value, and adding the added communication time slotTi is a fixed communication time slot of the set ith device;
step U3, reducing the communication time slot between the vibration meter and the controller, which is larger than the set upper limit threshold value, and the reduced communication time slot；
Step U4, extracting vibration periods of the vibration meters on the detected data at all positions on the sample to be detected;
and step U5, judging whether the communication time length of the data detected by the vibration meter in a complete vibration period transmitted to the controller is within the range allowed by the adjusted communication time slot, and if not, repeating the steps U1-U5.
Further, before the controller and the 1 st vibration meter communicate and transmit, a position node networking area time period is set, and if no request networking is found in a t0 time period in the position node networking area time period, the position node networking area time period in the communication process of the controller and each vibration meter is deleted.
A multichannel management method based on a vibration meter controller comprises the following steps:
step 1, detecting actual communication duration of each vibration meter and a controller under a set communication time slot;
step 2, analyzing the time length occupation rate of data transmission in the communication time slot, and predicting the risk degree of the transmission time length in the communication time slot;
step 3, judging whether the transmitted data has transmission abnormality, positioning the data of the transmission abnormality, and counting the abnormal times, abnormal data amount and the times of repeated transmission required under the condition of single transmission data abnormality of each vibration meter for transmitting the data to the controller;
step 4, analyzing steady state coefficients of data transmitted by the vibration meters and the controller under the actual transmission time of the vibration meters;
step 5, evaluating the communication transmission quality between the controller and each vibration meter to obtain a channel transmission evaluation coefficient between the controller and each vibration meter;
and 6, dynamically managing the communication time slot of the vibration meter establishing multi-channel transmission with the controller based on the channel transmission evaluation coefficient.
Advantageous effects
The invention provides a multichannel management system based on a vibration meter controller, which is used for analyzing the risk degree of the transmission time length of data transmitted to the controller by the vibration meter in a communication time slot by the actual communication time length of the vibration meter and the controller and a set communication time slot, and analyzing the risk interference of the preset fixed communication time slot to the communication transmission of the vibration meter in the actual communication transmission process according to the evaluation of the risk degree of the transmission time length.
The method and the device for detecting the abnormal data of the vibration meter determine the abnormal data of the vibration meter, locate the abnormal data position and repeatedly transmit the abnormal data once the abnormal data exists, acquire the abnormal times and the abnormal data quantity of the data transmitted by the vibration meter to the controller and the repeated transmission times aiming at the same abnormal data, further analyze the steady state degree of the data transmitted by the vibration meter and the controller, realize the comprehensive evaluation of the stability of the data transmission in the transmission process, and intuitively display whether the communication between the vibration meter and the controller is smooth or not and the comprehensive determination of whether the communication network is abnormal or not under the communication duration.
According to the invention, the communication time slots of the vibration meters which establish multi-channel transmission with the controller are dynamically managed according to the channel transmission evaluation coefficients through the channel transmission evaluation coefficients between the controller and each vibration meter, so that different communication time slots caused by different vibration periods and different vibration data amounts at different vibration positions are met, different transmission data requirements are met, the dynamic distribution of the multi-channel transmission time length of the vibration meters and the controller is realized, the transmission efficiency is optimized, the integrity of transmission data is ensured, and the waiting time of the transmission gaps of two adjacent vibration meters can be reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the communication distribution of a controller and a vibration meter;
fig. 2 is a schematic diagram of communication duration before and after adjustment of the vibration meter and the controller.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. It will be apparent that the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments, which can be made by one of ordinary skill in the art without the need for inventive faculty, are within the scope of the present disclosure, based on the described embodiments of the present disclosure.
The controller is in communication connection with the plurality of laser vibration meters, so that multidirectional vibration information of a sample detected by the laser vibration meters in real time can be conveniently transmitted to the same vibration meter controller, the vibration meter controller analyzes according to the vibration information transmitted by the laser vibration meters in communication connection with the vibration meter controller, when the vibration meter controller is in communication with the plurality of laser vibration meters, fixed communication time slots between the vibration meters are required to be respectively distributed, and due to the fact that the data volume collected by the vibration meters changes, communication waiting time length or data transmission loss risk of the communication between the vibration meters and the controller is increased, dynamic adjustment cannot be carried out on the communication time slots of the vibration meters according to the actual data volume transmitted by the vibration meters, so that the time efficiency of communication transmission is reduced, and the error quantity of data synchronous calculation is affected.
Example 1
A multichannel management system based on a vibration meter controller comprises a communication duration detection model, a transmission duration duty ratio module, a data transmission analysis module, a transmission steady state judgment module and a transmission evaluation management module;
at first, the communication time slot between the controller and each vibration meter is fixed, and the problems that partial data detected by the vibration meters cannot be transmitted in the fixed communication time slot, so that packet loss is caused, the data cannot be completely transmitted and the like exist.
The communication duration detection module is used for detecting the actual communication duration of each vibration meter and the controller under the preset communication time slot in real time, the communication time slots of the controller and each vibration meter are preset, and the communication time slots of the vibration meters and the controller are fixed and identical, as shown in fig. 1 and 2.
The vibration meters detect different positions of a sample to be detected, vibration periods at the detection positions are different, the data amount required to be transmitted in one vibration period is different, the data amount required to be transmitted to the controller by the vibration meters is different, the conventional fixed communication time slot is unreasonable to set, the situation that the actual communication time slot between the vibration meters and the controller is longer than the set communication time slot, the actual communication time length critical set communication time slot, the actual communication time length is longer than the set communication time slot and the like easily occurs, and once the actual communication time length is critical or is longer than the preset communication time slot, the risk of communication data transmission is increased, and abnormal communication data transmission is caused.
The transmission time length proportion module is used for analyzing the actual communication time length of each vibration meter and the controller and the set communication time slot, analyzing the time length proportion of data transmission in the communication time slot, and predicting the risk degree of the transmission time length in the communication time slot based on the time length proportion.
When the ratio of the actual communication time length of the same vibration meter to the set communication time slot is less than or equal to 0.6, the risk coefficient of the transmission time length in the communication time slotEqual to 0; when the ratio of the actual communication time length of the same vibration meter to the set communication time slot is between 0.6 and 0.9, the risk coefficient of the transmission time length in the communication time slot is +.>About 0.32; when the ratio of the actual communication time length of the same vibration meter to the set communication time slot is between 0.9 and 0.95, the risk coefficient of the transmission time length in the communication time slotThe value is 0.85; when the ratio of the actual communication duration of the same vibration meter to the set communication time slot is in the range of 0.95-1, the risk coefficient of the transmission duration in the communication time slot of the vibration meter takes a value of 1.
The data transmission analysis module is used for extracting data in the communication transmission process of each vibration meter and the controller, analyzing whether the transmitted data has transmission abnormality, positioning the data with transmission abnormality of each vibration meter and the controller, and counting the abnormal times, abnormal data quantity and the times of repeated transmission required under the single transmission data abnormality of each vibration meter.
The analysis method of communication transmission between each vibration meter and the controller comprises the following steps:
step 1, acquiring data acquired by a vibration meter in a single vibration period, and receiving the data sent by the vibration meter by a controller;
and 2, judging whether the data collected by the same vibration meter is the same as the data sent by the vibration meter and received by the controller, if so, carrying out anomaly detection on the transmission data and positioning the anomaly data, wherein the anomaly detection method can adopt a parity check algorithm, a cyclic redundancy check algorithm, a longitudinal redundancy check algorithm and the like, and can judge whether the transmitted data is abnormal or not in the process of transmitting the vibration meter to the controller.
Step 3, the controller sends a control instruction to the vibration meter, and the vibration meter retransmits the positioned abnormal data;
and step 4, judging whether the retransmission times are smaller than a set transmission times threshold, if so, repeating the step 2 until the retransmission times are larger than the set transmission threshold or the vibration meter retransmits the positioned abnormal data normally.
By analyzing the communication transmission process between each vibration meter and the controller, whether the data detected by the vibration meter in a single vibration period is lost or distorted is determined, the position of abnormal data in the transmission process is accurately positioned, the positioned abnormal data is repeatedly transmitted, and the accuracy and the integrity of the data transmission acquired by each vibration meter in a complete vibration period are ensured.
The transmission steady state judging module is used for analyzing whether transmission priority demands exist between the controller and each vibration meter, carrying out transmission priority adjustment on each vibration meter with the transmission priority demands, guaranteeing that the vibration meter with high transmission priority demands carries out data transmission preferentially than the vibration meter with low transmission priority demands, and analyzing steady state coefficients of data transmitted by each vibration meter and the controller under the actual transmission duration of each vibration meter.
The steady state judging method of the transmission data between each vibration meter and the controller comprises the following steps:
step 1, calculating transmission time tij, i required by each vibration meter for transmitting data detected in a complete vibration period is the number of the vibration meters, i=1, 2, and n, j is the number of times that the vibration meters completely transmit the data detected in the vibration period to a controller, j=1, 2, and m;
step 2, analyzing the average transmission of each vibration meter for transmitting a complete vibration periodDuration of time；
Step 3, calculating the offset of the communication transmission time length；
Step 4, counting the abnormal times of data transmission to the controller by the same vibration meter, the abnormal data quantity of single transmission and the times required by repeated transmission of the abnormal data quantity;
step 5, analyzing the transmission steady state coefficient of each vibration meter and the controller under the transmission data by adopting a transmission steady state evaluation modelThe transmission steady-state coefficient is the comprehensive evaluation of the stability of data transmission in the transmission process, so that the multi-channel transmission time length of the controller is conveniently distributed according to the transmission steady-state coefficient between each vibration meter and the controller in the later period, the transmission efficiency is optimized, the integrity of transmission data is ensured, and the waiting time of the transmission gap between two adjacent vibration meters can be reduced.
A transmission steady state evaluation module:e is a natural number, E is a fixed transmission gap set in advance, ">The number of times of the cyclic transmission of each vibration meter is received for the controller, +.>In order to transmit the ith vibration meter to the controller for the abnormal number of data transmission times C, v is the data volume transmitted in the unit time of the current communication network, wi is the data volume acquired by the ith vibration meter in one vibration period (the data volume required to be transmitted once), and the data acquired by the vibration meter in a single vibration period need to be transmitted to the controller)>Expressed as the abnormal data quantity of the ith vibration meter in the transmission of the jth complete vibration cycle,/th vibration meter>Expressed as the number of times required for the ith meter to repeat transmission of the abnormal data amount in the j-th complete vibration cycle.
By judging the steady state of data transmission between the vibration meters and the controller, comprehensive judgment of whether the communication between the vibration meters and the controller is smooth or not and whether the communication network is abnormal or not under the communication duration can be intuitively displayed, and intelligent dynamic adjustment is performed according to the communication duration of the data required by the transmission of the vibration meters in the later period under the complete vibration period according to the steady state degree in the transmission process of the vibration meters and the controller.
The transmission evaluation management module is used for extracting the transmission duration risk degree of each vibration meter and the controller in the communication time slot and the steady state coefficient of the transmission data of each vibration meter and the controller under the actual transmission duration, analyzing the communication transmission quality between the controller and each vibration meter according to the transmission duration risk degree of each vibration meter and the steady state coefficient of the transmission data, obtaining the channel transmission evaluation coefficient between the controller and each vibration meter, and dynamically managing the communication time slot of the vibration meter establishing multi-channel transmission with the controller based on the channel transmission evaluation coefficient.
The channel transmission evaluation coefficient is used for evaluating the overall communication effect of the controller and the vibration meters in the communication process, and because the vibration meters are communicated with the controller, data detected by the vibration meters are sequentially transmitted in communication time slots, vibration detection is carried out on different positions of the same sample to be detected by the vibration meters, vibration periods of different positions of the same sample to be detected are different due to different placement positions, working states, placement states and the like of the same sample to be detected, and communication time length required by data transmission acquired by the vibration meters at the positions for a complete vibration period is adjusted by acquiring the vibration periods of the sample to be detected.
Channel transmission evaluation in communication process of controller and each vibration meterCalculating coefficients:e is a natural number, and the channel transmission evaluation coefficient is positively correlated with the communication transmission quality.
As shown in fig. 2, the method for dynamically managing the communication time slot between the controller and each vibration meter comprises the following steps;
step U1, judging whether a communication transmission evaluation coefficient in the communication process of the controller and each vibration meter is smaller than a set lower limit threshold value, if so, executing the step U2, and if so, executing the step U3, wherein the lower limit threshold value is smaller than the upper limit threshold value;
step U2, adding the communication time slot between the vibration meter and the controller, which is smaller than the set lower threshold value, and adding the added communication time slotTi is a fixed communication time slot of the set ith device;
step U3, reducing the communication time slot between the vibration meter and the controller, which is larger than the set upper limit threshold value, and the reduced communication time slot；
Step U4, extracting vibration periods of the vibration meters on the detected data at all positions on the sample to be detected;
and step U5, judging whether the communication time length of the data detected by the vibration meter in a complete vibration period transmitted to the controller is within the range allowed by the adjusted communication time slot, and if not, repeating the steps U1-U5.
The controller carries out communication connection with a plurality of vibration meters, be convenient for with the diversified vibration information transmission of the sample that awaits measuring of vibration meter real-time detection to same controller, each vibration meter has temporary storage function, carries out temporary storage at the vibration data that other vibration meters and controller communication transmission's in-process vibration meter detected, when carrying out communication transmission with this vibration meter, with the vibration data transmission to the controller that detects, realize the continuity of each vibration meter data that detects.
According to the vibration period difference detected by the vibration measuring instrument at different positions of the sample to be measured, the communication transmission evaluation coefficients between the vibration measuring instrument and the controller are analyzed, so that the communication time slots are insufficient and redundant communication time slots exist in the communication time slots according to the communication transmission evaluation coefficients, the time length of the data detected by the vibration measuring instrument in a complete vibration period is dynamically regulated and controlled and managed to the controller, the vibration data difference caused by the deviation of the vibration period at different positions can be met, the transmission time length required for transmitting the vibration data is further different, the intelligent regulation and control of the multichannel self-adaptive communication time slots between the controller and each vibration measuring instrument are realized, and the quality and the efficiency of communication transmission are improved.
Example two
According to the communication time slot required by the vibration data detected by each vibration meter in a complete vibration period to be transmitted to the controller, the controller respectively sends and broadcasts to each controller, and the starting time of the communication transmission between each vibration meter and the controller is updated.
Before the controller and the 1 st vibration meter carry out communication transmission, a position node networking area time period is set, and when the request networking is not found in a t0 time period in the position node networking area time period, the position node networking area time period in the communication process of the controller and each vibration meter is deleted.
Example III
A multichannel management method based on a vibration meter controller comprises the following steps:
step 1, detecting actual communication duration of each vibration meter and a controller under a set communication time slot;
step 2, analyzing the time length occupation rate of data transmission in the communication time slot, and predicting the risk degree of the transmission time length in the communication time slot;
step 3, judging whether the transmitted data has transmission abnormality, positioning the data of the transmission abnormality, and counting the abnormal times, abnormal data amount and the times of repeated transmission required under the condition of single transmission data abnormality of each vibration meter for transmitting the data to the controller;
step 4, analyzing steady state coefficients of data transmitted by the vibration meters and the controller under the actual transmission time of the vibration meters;
step 5, evaluating the communication transmission quality between the controller and each vibration meter to obtain a channel transmission evaluation coefficient between the controller and each vibration meter;
and 6, dynamically managing the communication time slot of the vibration meter establishing multi-channel transmission with the controller based on the channel transmission evaluation coefficient.
The method comprises the steps of dividing time into periodic frames, transmitting data detected by the vibration meters to the controller after each frame is divided into a plurality of communication time slots, enabling the controller to receive signals of the vibration meters in corresponding communication time slots respectively without confusion, establishing communication time slots between the controllers and the vibration meters, and transmitting the data to the controller by the vibration meters according to the communication time slots between the vibration meters and the controllers.
Through the dynamic management of the communication time slot between the controller and each vibration meter, the fixed communication time slot between the vibration meter and the controller is dynamically regulated and controlled under the condition that the normal communication data and no lost data of each controller and the vibration meter are met, and the multichannel communication transmission efficiency and stability between the controller and a plurality of vibration meters can be improved on the premise of ensuring the transmission quality.
The foregoing is merely illustrative and explanatory of the principles of the invention, as various modifications and additions may be made to the specific embodiments described, or similar thereto, by those skilled in the art, without departing from the principles of the invention or beyond the scope of the appended claims.
Claims (6)
1. A multichannel management system based on a vibration meter controller is characterized in that: the system comprises a communication duration detection model, a transmission duration duty ratio module, a data transmission analysis module, a transmission steady state judgment module and a transmission evaluation management module;
the communication duration detection module is used for detecting the actual communication duration of each vibration meter and the controller under a preset communication time slot in real time;
the transmission time length proportion module is used for analyzing the actual communication time length of each vibration meter and the controller and the set communication time slot, analyzing the time length proportion of data transmission in the communication time slot, and predicting the risk degree of the transmission time length in the communication time slot based on the time length proportion, wherein the time length proportion is the ratio of the actual communication time length of the vibration meter to the set communication time slot;
the data transmission analysis module is used for extracting data in the communication transmission process of each vibration meter and the controller, analyzing whether the transmitted data has transmission abnormality, positioning the data with transmission abnormality of each vibration meter and the controller, and counting the abnormal times, abnormal data quantity and the times of repeated transmission required under the single transmission data abnormality of each vibration meter;
the transmission steady state judging module is used for analyzing whether transmission priority demands exist between the controller and each vibration meter, carrying out transmission priority adjustment on each vibration meter with the transmission priority demands, guaranteeing that the vibration meter with high transmission priority demands carries out data transmission preferentially than the vibration meter with low transmission priority demands, and analyzing steady state coefficients of data transmission between each vibration meter and the controller under the actual transmission duration of each vibration meter;
the steady state judging method of the transmission data between each vibration meter and the controller comprises the following steps:
step 1, calculating transmission time tij, i required by each vibration meter for transmitting data detected in a complete vibration period is the number of the vibration meters, i=1, 2, and n, j is the number of times that the vibration meters completely transmit the data detected in the vibration period to a controller, j=1, 2, and m;
step 2, analyzing the average transmission time length of each vibration meter for transmitting a complete vibration period；
Step 3, calculating the offset of the communication transmission time length；
Step 4, counting the abnormal times of data transmission to the controller by the same vibration meter, the abnormal data quantity of single transmission and the times required by repeated transmission of the abnormal data quantity;
step 5, analyzing transmission steady state coefficients of the vibration meters and the controller under transmission data by adopting a transmission steady state evaluation model;
the transmission steady state assessment model in step 5 is:e is a natural number, E is a fixed transmission gap set in advance, ">The number of times of the cyclic transmission of each vibration meter is received for the controller, +.>In order to transmit the ith vibration meter to the controller for the abnormal number of data transmission times C, v is the data volume transmitted in the unit time of the current communication network, wi is the data volume acquired by the ith vibration meter in one vibration period (the data volume required to be transmitted once), and the data acquired by the vibration meter in a single vibration period need to be transmitted to the controller)>Expressed as the abnormal data quantity of the ith vibration meter in the transmission of the jth complete vibration cycle,/th vibration meter>Expressed as the number of times required for repeated transmission of the ith meter for transmission of the abnormal data volume in the jth full vibration cycle;
the transmission evaluation management module is used for extracting the transmission duration risk degree of each vibration meter and the controller in the communication time slot and the steady state coefficient of the transmission data of each vibration meter and the controller under the actual transmission duration, analyzing the communication transmission quality between the controller and each vibration meter according to the transmission duration risk degree of each vibration meter and the steady state coefficient of the transmission data, obtaining the channel transmission evaluation coefficient between the controller and each vibration meter, and dynamically managing the communication time slot of the vibration meter establishing multi-channel transmission with the controller based on the channel transmission evaluation coefficient;
calculating a channel transmission evaluation coefficient in the communication process of the controller and each vibration meter:e is a natural number, and the channel transmission estimation coefficient is positively correlated with the communication transmission quality, ++>For the transmission duration risk factor in the communication time slot,expressed as a transmission steady state coefficient under the transmission data of the ith vibration meter and the controller.
2. The vibration meter controller-based multichannel management system of claim 1, wherein: the ratio of the actual communication time length of the same vibration meter to the set communication time slot is related to the risk coefficient of the transmission time length in the communication time slot between the vibration meter and the controller, and when the ratio of the actual communication time length of the same vibration meter to the set communication time slot is smaller than or equal to 0.6, the risk coefficient of the transmission time length in the communication time slotEqual to 0; when the ratio of the actual communication time length of the same vibration meter to the set communication time slot is between 0.6 and 0.9, the risk coefficient of the transmission time length in the communication time slot is +.>Equal to 0.32; when the ratio of the actual communication time length of the same vibration meter to the set communication time slot is between 0.9 and 0.95, the risk coefficient of the transmission time length in the communication time slot is +.>The value is 0.85; when the ratio of the actual communication duration of the same vibration meter to the set communication time slot is in the range of 0.95-1, the risk coefficient of the transmission duration in the communication time slot of the vibration meter takes a value of 1.
3. The vibration meter controller-based multichannel management system of claim 1, wherein: the analysis method of communication transmission between each vibration meter and the controller comprises the following steps:
step 1, acquiring data acquired by a vibration meter in a single vibration period, and receiving the data sent by the vibration meter by a controller;
step 2, judging whether the data collected by the same vibration meter is the same as the data sent by the vibration meter and received by the controller, if so, carrying out anomaly detection on the transmission data and positioning the anomaly data;
step 3, the controller sends a control instruction to the vibration meter, and the vibration meter retransmits the positioned abnormal data;
and step 4, judging whether the retransmission times are smaller than a set transmission times threshold, if so, repeating the step 2 until the retransmission times are larger than the set transmission threshold or the vibration meter retransmits the positioned abnormal data normally.
4. The vibration meter controller-based multichannel management system of claim 1, wherein: the dynamic management method of the communication time slot between the controller and each vibration meter comprises the following steps of;
step U1, judging whether a communication transmission evaluation coefficient in the communication process of the controller and each vibration meter is smaller than a set lower limit threshold value, if so, executing the step U2, and if so, executing the step U3, wherein the lower limit threshold value is smaller than the upper limit threshold value;
step U2, carrying out communication time slot between the vibration meter and the controller, wherein the communication time slot is smaller than the set lower limit threshold valueIncreased, increased communication time slotsTi is a fixed communication time slot of the set ith device;
step U3, reducing the communication time slot between the vibration meter and the controller, which is larger than the set upper limit threshold value, and the reduced communication time slot；
Step U4, extracting vibration periods of the vibration meters on the detected data at all positions on the sample to be detected;
and step U5, judging whether the communication time length of the data detected by the vibration meter in a complete vibration period transmitted to the controller is within the range allowed by the adjusted communication time slot, and if not, repeating the steps U1-U5.
5. The vibration meter controller-based multichannel management system of claim 1, wherein: before the controller and the 1 st vibration meter carry out communication transmission, a position node networking area time period is set, and when a request networking is not found in a t0 time period in the position node networking area time period, the position node networking area time period in the communication process of the controller and each vibration meter is deleted.
6. The method of a vibration meter controller-based multichannel management system of claim 1, comprising the steps of:
step 1, detecting actual communication duration of each vibration meter and a controller under a set communication time slot;
step 2, analyzing the time length occupation rate of data transmission in the communication time slot, and predicting the risk degree of the transmission time length in the communication time slot;
step 3, judging whether the transmitted data has transmission abnormality, positioning the data of the transmission abnormality, and counting the abnormal times, abnormal data amount and the times of repeated transmission required under the condition of single transmission data abnormality of each vibration meter for transmitting the data to the controller;
step 4, analyzing steady state coefficients of data transmitted by the vibration meters and the controller under the actual transmission time of the vibration meters;
step 5, evaluating the communication transmission quality between the controller and each vibration meter to obtain a channel transmission evaluation coefficient between the controller and each vibration meter;
and 6, dynamically managing the communication time slot of the vibration meter establishing multi-channel transmission with the controller based on the channel transmission evaluation coefficient.
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