A method and system applied to speed redundancy measurement of coal feeder

Abstract

The application discloses a kind of method and system applied to coal feeder speed redundancy measurement, belong to speed measurement redundancy technical field, comprising: server obtains the reading of coal feeder sensor to obtain first rotational speed information and second rotational speed information;Server judges whether first rotational speed information and second rotational speed information exist anomaly according to preset rotational speed information difference value threshold value;Server obtains the weight information of the conveying belt of coal feeder and target production data, judges abnormal data;Server obtains the rotational speed information of the conveying belt according to abnormal data, preset weight information to obtain fourth rotational speed information;Server adjusts the rotational speed of the conveying belt of coal feeder according to fourth rotational speed information.The accuracy of the present application server to first rotational speed information and second rotational speed information is improved, so that the accuracy of coal feeder speed redundancy measurement is improved;The accuracy of the rotational speed of the gear of the conveying belt of coal feeder obtained is improved, so as to improve the accuracy of coal feeder speed redundancy measurement.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of speed measurement redundancy, in particular to a method and system for coal feeder speed redundancy measurement. BACKGROUND

[0002] The coal entering the furnace of a thermal power plant is measured by a weighing type coal feeder, and is sent into the furnace by the air supply system (primary air fan, air supply fan) after being ground by the coal mill. The weighing type coal feeder is usually an electronic belt scale with a three-level measurement standard, which includes a speed sensor for detecting the belt speed and sending the speed signal to the weighing display (integral operator), and a weighing sensor for detecting the weight of the material on the belt and sending the weight signal to the weighing display (integral operator). The weighing display first receives the weight signal for analog-to-digital conversion, and then performs integral operation on the weight signal and the speed signal to obtain the cumulative total amount and instantaneous flow of the material.

[0003] The weighing type coal feeder usually has a speed sensor installed at the edge of the driving roller to detect the belt speed. However, this has the following problems: the speed sensor is installed at the end of the driving roller, and the vibration is large, which affects the detection of the motor speed signal and the accuracy of the coal quantity measurement. Since the motor speed is an important parameter for calculating the coal feeding rate, the stability of the motor speed directly affects the stability of the coal feeder operation. When the speed signal is lost, the coal feeder will immediately trip, so we add a double speed redundancy switching to the signal to make the coal feeder run more stably. SUMMARY

[0004] In view of the above existing problems, the purpose of the present application is to ensure the accuracy and reliability of the conveyor belt speed, by monitoring and comparing the speed information difference of two different position sensors with the preset threshold value in real time, and monitoring the comparison of the conveyor belt weight change and the target production data, to timely discover and handle the speed abnormality, thereby optimizing the operation efficiency of the coal feeder and ensuring the stability and safety of the coal supply. This method solves the specific technical problems of accurately judging the speed information abnormality, real-time monitoring the conveyor belt running state, calculating the reasonable speed information in abnormal conditions, safely and smoothly adjusting the conveyor belt speed, and generating warning information to ensure the continuity and safety of the production line.

[0005] To solve the above technical problems, a method for coal feeder speed redundancy measurement is proposed, which comprises,

[0006] The server obtains the readings of the coal feeder sensors to obtain first speed information and second speed information; the server judges whether the first speed information and the second speed information are abnormal according to a preset speed information difference threshold value; the server obtains the conveyor belt weight information and the target production data of the coal feeder to judge the abnormal data;

[0007] The server obtains the fourth rotating speed information according to the abnormal data, the preset weight information and the rotating speed information of the conveyor belt.

[0008] As a preferred scheme of the method for measuring the speed redundancy of the coal feeder, the first rotating speed information and the second rotating speed information include that the server obtains the readings of the first rotating speed information sensor and the second rotating speed information sensor of the coal feeder, obtains the first rotating speed information and the second rotating speed information, and the first rotating speed information sensor and the second rotating speed information sensor are installed at different positions.

[0009] The server receives the readings uploaded by the first rotating speed information sensor and the second rotating speed information sensor through the data bus connected with the first rotating speed information sensor and the second rotating speed information sensor.

[0010] The conveyor belt weight information includes that the server obtains the conveyor belt weight information by obtaining the readings of the pressure sensor arranged below the conveyor belt.

[0011] The target production data includes that the server obtains the target production data by obtaining the weight of the coal required for completing the target production task.

[0012] As a preferred scheme of the method for measuring the speed redundancy of the coal feeder, whether the first rotating speed information and the second rotating speed information are abnormal includes that the server calculates the difference between the first rotating speed information and the second rotating speed information according to the first rotating speed information and the second rotating speed information, obtains the first difference.

[0013] It is judged whether the first difference is less than the preset rotating speed information difference threshold value.

[0014] When the first difference is less than the preset first rotating speed information difference threshold value, it is indicated that the first rotating speed information and the second rotating speed information are not abnormal.

[0015] When the first difference is greater than or equal to the preset rotating speed information difference threshold value, it is indicated that the first rotating speed information and the second rotating speed information are abnormal.

[0016] As a preferred scheme of the method for measuring the speed redundancy of the coal feeder, the judgment of the abnormal data includes that the server obtains the first conveyor belt weight information and the second conveyor belt weight information according to the conveyor belt weight information.

[0017] The second conveyor belt weight information is the conveyor belt weight information after a preset time interval of the first conveyor belt weight information.

[0018] The server obtains a weight information change rate of the conveyor according to the first conveyor weight information and the second conveyor weight information, and obtains a first change rate;

[0019] The server determines whether the first change rate is greater than a set change rate threshold value;

[0020] When the first change rate is greater than the change rate threshold value, the first rotation speed information is abnormal, and the server determines the first rotation speed information as first abnormal data;

[0021] When the first change rate is less than or equal to the change rate threshold value, the first rotation speed information is not abnormal;

[0022] If the first rotation speed information is not abnormal, the server performs abnormality discrimination according to second rotation speed information of target production data, and converts the target production data into rotation speed information of a gear of the conveyor through a logical conversion network to obtain third rotation speed information;

[0023] The server obtains a second difference value between the second rotation speed information and the third rotation speed information;

[0024] The server determines whether the second difference value is greater than a set second difference value threshold value, and when the second difference value is less than or equal to the preset second difference value threshold value, it is indicated that the second rotation speed information is not abnormal;

[0025] When the second difference value is greater than the preset second difference value threshold value, it is indicated that the second rotation speed information is abnormal, and the server determines the second rotation speed information as first abnormal data.

[0026] As a preferred scheme of the method for measuring the speed of the coal feeder, the fourth rotation speed information includes that the server obtains fourth rotation speed information of the conveyor according to the first abnormal data, first preset weight information and second preset weight information:

[0027]

[0028] Wherein, ω3 represents the fourth rotation speed information, a represents the first preset weight information, ω1 represents the first rotation speed information, b represents the second preset weight information, and ω2 represents the second rotation speed information.

[0029] As a preferred scheme of the method for measuring the speed of the coal feeder, the fourth rotation speed information further includes that when the first abnormal data is the first rotation speed information, it is indicated that the first rotation speed information is abnormal, the first rotation speed sensor is abnormal, the server determines the second rotation speed information as the fourth rotation speed information, and generates a warning information;

[0030] When the first abnormal data is the second rotation speed information, it indicates that the second rotation speed information is abnormal, the second rotation speed sensor is abnormal, the server determines the first rotation speed information as the fourth rotation speed information, and generates a warning information;

[0031] When the first abnormal data is the first rotation speed information and the second rotation speed information, it indicates that the first rotation speed sensor and the second rotation speed sensor are both abnormal, the server sets 0 as the rotation speed of the conveyor belt of the coal feeder, and obtains the fourth rotation speed information;

[0032] When the first abnormal data does not exist, it indicates that the first rotation speed information and the second rotation speed information are both normal, and the server calculates the rotation speed information of the conveyor belt to obtain the fourth rotation speed information.

[0033] As a preferred scheme of the method for measuring the speed of the coal feeder, the method comprises adjusting the rotation speed of the conveyor belt of the coal feeder, and the adjusting the rotation speed of the conveyor belt of the coal feeder comprises: the server uses a non-perturbation conversion algorithm to adjust the rotation speed of the conveyor belt gear of the coal feeder to the fourth rotation speed within a preset time according to the fourth rotation speed information, so that the conveyor belt gear of the coal feeder is adjusted to the fourth rotation speed information.

[0034] Another object of the present application is to provide a system for measuring the speed of the coal feeder, which can solve the technical problems that the conveyor belt of the coal feeder may encounter during operation, including ensuring the accuracy of the rotation speed information, quickly identifying abnormal conditions, matching the coal supply and production demand, intelligently determining the optimal rotation speed, and warning and risk management, thereby improving the reliability and operation efficiency of the system and ensuring the safety of the equipment and the continuity of production.

[0035] As a preferred scheme of the system for measuring the speed of the coal feeder, the system comprises a data acquisition module, a data processing and analysis module, a decision and control module, and a warning information generation module.

[0036] The data acquisition module comprises a first rotation speed information sensor unit, a second rotation speed information sensor unit, and a pressure sensor unit.

[0037] The first rotation speed information sensor unit and the second rotation speed information sensor unit respectively send the rotation speed information to a rotation speed information processing unit, and the pressure sensor unit sends the weight information of the conveyor belt to a weight information processing unit, each unit of the data acquisition module collects data and sends the data to the data processing and analysis module.

[0038] The data processing and analysis module comprises a rotation speed information processing unit, a weight information processing unit, a target production data processing unit, an abnormality detection unit, and a weight information processing unit.

[0039] The rotation speed information processing unit calculates the difference between the first rotation speed information and the second rotation speed information and compares it with a preset threshold value to determine whether there is an abnormality; the weight information processing unit calculates the change rate of the weight information of the conveying belt and compares it with a preset threshold value to determine whether there is an abnormality; the target production data processing unit converts the target production data into the gear rotation speed information of the conveying belt; the abnormality detection unit determines the abnormal data according to the results of the rotation speed information processing unit and the weight information processing unit; and the weight information processing unit determines the fourth rotation speed information according to the abnormal data and the weight information;

[0040] The decision and control module comprises a decision unit and a control unit.

[0041] The decision unit determines the fourth rotation speed information according to the output of the weight information processing unit and the abnormal data, and the control unit adjusts the rotation speed of the conveying belt of the coal feeder according to the fourth rotation speed information, and uses a non-perturbation conversion algorithm to complete the adjustment within a preset time.

[0042] The early warning information generation module generates early warning information according to the abnormality detection result and sends it to the staff or the system.

[0043] A computer device comprising a memory and a processor, wherein the memory stores a computer program, and wherein the processor implements the steps of the method for measuring the speed redundancy of a coal feeder when executing the computer program.

[0044] A computer-readable storage medium having a computer program stored thereon, wherein the computer program implements the steps of the method for measuring the speed redundancy of a coal feeder when executed by a processor.

[0045] The server of the present application can determine the abnormality of the first rotation speed information and the second rotation speed information according to the different working principles of the first rotation speed sensor and the second rotation speed sensor, thereby improving the accuracy of the server in determining the abnormality of the first rotation speed information and the second rotation speed information.

[0046] When the first rotation speed information and the second rotation speed information are both normal data, the readings of the rotation speed sensors using two different working modes are obtained for mutual verification, thereby improving the accuracy of the obtained rotation speed of the gear of the conveying belt of the coal feeder, and thereby improving the accuracy of the speed redundancy measurement of the coal feeder. BRIEF DESCRIPTION OF DRAWINGS

[0047] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments description will be briefly introduced as follows. Obviously, the drawings in the following description only represent some of the embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0048] Figure 1 The overall flow chart of a method for coal feeder speed redundancy measurement is provided for an embodiment of the present application.

[0049] Figure 2 The module schematic diagram of a system for coal feeder speed redundancy measurement is provided for an embodiment of the present application. DETAILED DESCRIPTION

[0050] In order to make the above objectives, features and advantages of the present application more apparent, the specific embodiments of the present application will be described in detail below with the drawings in the specification. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without any creative effort should fall within the protection scope of the present application.

[0051] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced without the specific details, other than those described in the specification, and it is understood that the present application is not limited to the embodiments described herein. In some instances, well-known structures and functions have not been described in detail in order to avoid obscuring the application.

[0052] Secondly, the "one embodiment" or "embodiment" referred to herein can include specific features, structures or characteristics in at least one implementation of the present application. The "in one embodiment" appearing in different places in the specification does not mean the same embodiment, nor does it mean that the embodiments are mutually exclusive or alternative to each other.

[0053] The present application is described in detail in conjunction with the schematic diagram. In the detailed description of the embodiments of the present application, the sectional view of the device structure will be partially enlarged without the general proportion for the convenience of description, and the schematic diagram is only an example, which should not limit the scope of protection of the present application. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in the actual manufacture.

[0054] Meanwhile, in the description of the present application, it should be noted that the terms "upper, lower, inner and outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first, second or third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0055] Unless otherwise expressly specified and limited, the terms "mounting, connecting, connecting" in the present application should be understood broadly, for example: it can be fixed connection, detachable connection or integral connection; it can also be mechanical connection, electrical connection or direct connection, it can also be indirectly connected through intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0056] Embodiment 1, reference Figure 1 As a first embodiment of the present application, the embodiment provides a method for speed redundancy measurement of a coal feeder, comprising:

[0057] S1: The server obtains the readings of the coal feeder sensor to obtain first speed information and second speed information.

[0058] Specifically, the server obtains the readings of the first speed information sensor and the second speed information sensor of the coal feeder to obtain the first speed information and the second speed information. Wherein, the working principle of the first speed information sensor and the second speed information sensor is different.

[0059] The server receives the readings uploaded by the first speed information sensor and the second speed information sensor through the data bus connected with the first speed information sensor and the second speed information sensor;

[0060] The server obtains the first speed information and the second speed information by receiving the readings uploaded by the wireless transmission device carried by the first speed information sensor and the second speed information sensor.

[0061] The installation positions of the first speed information sensor and the second speed information sensor are different, for example: the first speed information sensor can be installed at the end of the driving roller, and the second speed information sensor can be installed on the motor shell; The installation position of the first speed information sensor and the second speed information sensor is not limited.

[0062] S2: The server determines whether the first speed information and the second speed information are abnormal according to the preset speed information difference threshold.

[0063] Further, the server determines whether the first rotation speed information and the second rotation speed information are abnormal according to a preset first rotation speed information difference threshold.

[0064] The server calculates a difference between the first rotation speed information and the second rotation speed information according to the first rotation speed information and the second rotation speed information, and obtains a first difference.

[0065] It is determined whether the first difference is less than a preset rotation speed information difference threshold.

[0066] When the first difference is less than the preset first rotation speed information difference threshold, it is determined that the first rotation speed information and the second rotation speed information are not abnormal.

[0067] When the first difference is greater than or equal to the preset rotation speed information difference threshold, it is determined that the first rotation speed information and the second rotation speed information are abnormal.

[0068] The rotation speed information difference threshold can be determined by historical values or experience values.

[0069] S3: The server obtains the conveyor belt weight information of the coal feeder and target production data, and determines abnormal data.

[0070] Further, the server obtains the conveyor belt weight information by obtaining the reading of the pressure sensor arranged below the conveyor belt.

[0071] The server obtains the target production data by obtaining the weight of the coal required to complete the target production task through the target production task.

[0072] It should be noted that the server determines the first rotation speed information according to the conveyor belt weight information, and if the first rotation speed information is abnormal, the first rotation speed information is determined as the first abnormal data; if the first rotation speed information is not abnormal, the server determines the second rotation speed information according to the target production database, and if the second rotation speed information is abnormal, the second rotation speed information is determined as the first abnormal data.

[0073] Specifically, the server determines the first rotation speed information according to the conveyor belt weight information, and if the first rotation speed information is abnormal, the first rotation speed information is determined as the first abnormal data.

[0074] The conveyor belt weight information of the coal feeder is an important parameter for coal quantity calculation. Since the conveyor belt of the coal feeder realizes the conveying of coal through the rotation of the gear, when the conveyor belt of the coal feeder is in normal operation, the weight information of the conveyor belt changes uniformly with time. Therefore, the conveyor belt weight information is a uniform change when the conveyor belt is in normal operation, and only in the case of stopping or extremely special circumstances will it become a fixed value.

[0075] The server obtains first conveyor belt weight information and second conveyor belt weight information according to the conveyor belt weight information; wherein the second conveyor belt weight information is the conveyor belt weight information after a preset time interval of the first conveyor belt weight information.

[0076] The server obtains a weight information change rate of the conveyor belt according to the first conveyor belt weight information and the second conveyor belt weight information, and obtains a first change rate, and the server judges whether the first change rate is greater than a preset change rate threshold.

[0077] The calculation formula of the weight information change rate of the conveyor belt according to the first conveyor belt weight information and the second conveyor belt weight information is as follows:

[0078]

[0079] In the formula, c represents the weight information change rate of the conveyor belt, W t+Δt represents the second conveyor belt weight information, W t represents the first conveyor belt weight information, and Δt represents the preset time interval.

[0080] If the first change rate is less than or equal to the preset change rate threshold, the first rotation speed information is not abnormal; if the first change rate is greater than the preset change rate threshold, the first rotation speed information is abnormal, and the server determines the first rotation speed information as the first abnormal data.

[0081] If the first rotation speed information is not abnormal, the server judges the second rotation speed information according to the target production data; if the second rotation speed information is abnormal, the server determines the second rotation speed information as the first abnormal data.

[0082] The server converts the target production data into the rotation speed information of the gear of the conveyor belt through a logical conversion network, and obtains third rotation speed information.

[0083] The server obtains a second difference value between the second rotation speed information and the third rotation speed information; and the server judges whether the second difference value is greater than a preset second difference value threshold.

[0084] If the second difference value is less than or equal to the preset second difference value threshold, it indicates that the second rotation speed information is not abnormal; if the second difference value is greater than the preset second difference value threshold, it indicates that the second rotation speed information is abnormal, and the server determines the second rotation speed information as the first abnormal data.

[0085] The emphasis is that: the server obtains the conveying belt weight information according to the pressure sensor under the conveying belt of the coal feeder; the server obtains the adjacent two conveying belt weight information according to the preset time interval, and obtains the first conveying belt weight information and the second conveying belt weight information. The server obtains the first change rate according to the first conveying belt weight information and the second conveying belt weight information, and compares the first change rate with the preset change rate threshold, and the server judges whether the first rotation speed information is abnormal according to the comparison result.

[0086] The server obtains the target production data according to the target production task, and converts the target production data into the rotation speed information of the coal feeder conveying belt gear that meets the target production data according to the logical conversion network, and obtains the third rotation speed information; the server compares the second rotation speed information with the third rotation speed information, and judges whether the second rotation speed information is abnormal according to the comparison result.

[0087] S4: The server obtains the rotation speed information of the conveying belt according to the abnormal data and the preset weight information to obtain the fourth rotation speed information.

[0088] Further, if the first abnormal data is the first rotation speed information, it means that the first rotation speed information is abnormal, the first rotation speed sensor is abnormal, the server determines the second rotation speed information as the fourth rotation speed information, and generates a warning information, wherein the fourth rotation speed information is:

[0089]

[0090] Wherein, ω3 represents the fourth rotation speed information, a represents the first preset weight information, ω1 represents the first rotation speed information, b represents the second preset weight information, and ω2 represents the second rotation speed information.

[0091] If the first abnormal data is the second rotation speed information, it means that the second rotation speed information is abnormal, the second rotation speed sensor is abnormal, the server determines the first rotation speed information as the fourth rotation speed information, and generates a warning information.

[0092] If the first abnormal data is the first rotation speed information and the second rotation speed information, it means that the first rotation speed sensor and the second rotation speed sensor are abnormal, the server sets 0 as the rotation speed of the conveying belt of the coal feeder, and obtains the fourth rotation speed information.

[0093] If the first abnormal data does not exist, it means that the first rotation speed information and the second rotation speed information do not exist, and the server keeps the current rotation speed of the conveying belt of the coal feeder. Wherein, the current rotation speed of the conveying belt of the coal feeder is calculated by the first preset weight information, the second preset weight information, the first rotation speed information and the second rotation speed information.

[0094] The server obtains first abnormal data according to the result of the abnormality discrimination of the first rotation speed information and the second rotation speed information. The server determines the rotation speed of the coal feeder belt gear according to the first abnormal data for the first rotation speed information or the second rotation speed information or the first rotation speed information and the second rotation speed information, and obtains fourth rotation speed information.

[0095] S5: The server adjusts the rotation speed of the coal feeder belt according to the fourth rotation speed information.

[0096] It should be noted that the server uses the non-perturbation conversion algorithm to adjust the rotation speed of the coal feeder belt gear to the fourth rotation speed within a preset time according to the fourth rotation speed information, so that the fourth rotation speed information of the coal feeder belt gear can be safely and smoothly adjusted.

[0097] Further, the server collects the rotation speed information of the first rotation speed information sensor and the second rotation speed information sensor within a preset time length in time sequence, and obtains a first rotation speed sequence and a second rotation speed sequence; wherein the first rotation speed sequence is a set of rotation speed information collected by the first rotation speed information sensor within a preset time, and is obtained by sorting the set of rotation speed information according to time information; the second rotation speed sequence is a set of rotation speed information collected by the second rotation speed information sensor within a preset time, and is obtained by sorting the set of rotation speed information according to time information.

[0098] The server calculates the fourth rotation speed information sequence according to the first rotation speed information sequence and the second rotation speed information sequence, collects the current rotation speed of the coal feeder belt in time sequence, obtains a current rotation speed sequence, calculates the excessive rotation speed information sequence according to the current rotation speed sequence of the coal feeder belt and the fourth rotation speed information sequence, and adjusts the current rotation speed information of the coal feeder belt to the fourth rotation speed information within a preset time according to the excessive rotation speed sequence;

[0099] The formula for calculating the fourth rotation speed information sequence according to the first rotation speed information sequence and the second rotation speed information sequence is as follows:

[0100]

[0101] In the formula, ω(t) represents the excessive rotation speed sequence, α represents a preset switching weight, which is determined by user input or system default, and α is a constant between 0 and 1; ω0(t) represents the current rotation speed sequence, ω4(t) represents the fourth rotation speed sequence, C(t) represents a rotation speed compensation term, k represents a preset compensation coefficient, which is determined by historical value or experience value; ε(t) represents the data error of the first rotation speed information sequence and the second rotation speed information sequence obtained by the second rotation speed information sensor, μ εδ represents a mean value of data errors between the first rotation speed information sequence obtained by the first rotation speed information sensor and the second rotation speed information sequence obtained by the second rotation speed information sensor, ω1(t) represents the first rotation speed sequence, and ω2(t) represents the second rotation speed sequence. ε δ represents a mean value of data errors between the first rotation speed information sequence obtained by the first rotation speed information sensor and the second rotation speed information sequence obtained by the second rotation speed information sensor, ω1(t) represents the first rotation speed sequence, and ω2(t) represents the second rotation speed sequence.

[0102] Embodiment 2, second embodiment of the present application, which is different from the previous embodiment is:

[0103] The functions described can be implemented in software, firmware, hardware, or any combination thereof. If implemented in software and as an application running on a service provider system, the application can be stored in a one or more of the storage devices and executed by one or more of the processors.

[0104] The logic and / or steps represented in the flowcharts and / or otherwise described herein, for example, can be considered a list of executable instructions for implementing logic functions, and can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor- containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this specification, a "computer-readable medium" can be any apparatus that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device.

[0105] More specific examples (a non-exhaustive list) of the computer-readable medium include the following: an electrical connection (electronic) having one or more wires, a portable computer diskette (magnetic), a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, and a portable compact disc read-only memory (CDROM). Additionally, the computer readable medium can be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, for example via an optical scanner, then compiled, interpreted, or otherwise processed, using an appropriate medium, into an electronically usable form by an appropriate processing device.

[0106] It should be understood that aspects of the application can be implemented in hardware, software, firmware or combinations thereof. In the embodiments described above, various steps or methods can be implemented, for example, by software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, and in another embodiment, any of the following technologies, known in the art, or their combinations can be used: discrete logic circuitry having logic gates for implementing logic functions on data signals, application specific integrated circuits having appropriate combinational logic gates, programmable gate arrays (PGA), field programmable gate arrays (FPGA), etc.

[0107] Embodiment 3, with reference to Figure 2 For the third embodiment of the present application, the embodiment provides a system applied to the speed redundancy measurement of a coal feeder, comprising a data acquisition module 10, a data processing and analysis module 20, a decision and control module 30, and a pre-warning information generation module 40.

[0108] The data acquisition module 10 comprises a first rotating speed information sensor unit 101, a second rotating speed information sensor unit 102, and a pressure sensor unit 103.

[0109] The first rotating speed information sensor unit 101 and the second rotating speed information sensor unit 102 respectively send rotating speed information to a rotating speed information processing unit 201, and the pressure sensor unit 103 sends the weight information of the conveyor belt to a weight information processing unit 202. Each unit of the data acquisition module 10 collects data and sends it to the data processing and analysis module 20.

[0110] The data processing and analysis module 20 comprises a rotating speed information processing unit 201, a weight information processing unit 202, a target production data processing unit 203, an anomaly detection unit 204, and a weight information processing unit 205.

[0111] The rotation speed information processing unit 201 calculates the difference between the first rotation speed information and the second rotation speed information and compares it with a preset threshold value to determine whether there is an abnormality; the weight information processing unit 202 calculates the change rate of the conveyor belt weight information and compares it with a preset threshold value to determine whether there is an abnormality; the target production data processing unit 203 converts the target production data into the gear rotation speed information of the conveyor belt; the abnormality detection unit 204 determines the abnormal data according to the results of the rotation speed information processing unit 201 and the weight information processing unit 202; and the weight information processing unit 205 determines the fourth rotation speed information according to the abnormal data and the weight information.

[0112] The decision and control module 30 includes a decision unit 301 and a control unit 302.

[0113] The decision unit 301 determines the fourth rotation speed information according to the output of the weight information processing unit 205 and the abnormal data, and the control unit 302 adjusts the rotation speed of the coal feeder conveyor belt according to the fourth rotation speed information, and uses a non-perturbation conversion algorithm to complete the adjustment within a preset time.

[0114] The early warning information generation module 40 generates early warning information according to the abnormality detection result and sends it to relevant personnel or systems.

[0115] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A method for measuring the redundancy of coal feeder speed, characterized in that: include, The server obtains the readings from the coal feeder's sensors to get the first and second rotational speed information; The server determines whether there are any abnormalities in the first and second speed information based on a preset speed information difference threshold. The server obtains the conveyor belt weight information and target production data of the coal feeder, and identifies abnormal data; The server obtains the fourth rotation speed information by acquiring the rotation speed information of the conveyor belt based on abnormal data and preset weight information; The server adjusts the speed of the coal feeder conveyor belt based on the fourth speed information; The first speed information and the second speed information include the server acquiring the readings of the first speed information sensor and the second speed information sensor of the coal feeder to obtain the first speed information and the second speed information, and the first speed information sensor and the second speed information sensor are installed in different positions; wherein, the first speed information sensor is installed at the end of the drive drum, and the second speed information sensor is installed on the motor housing; The server receives readings uploaded by the first and second speed information sensors via a data bus that connects the first and second speed information sensors. The conveyor belt weight information is obtained by the server acquiring readings from pressure sensors located under the conveyor belt. The target production data includes the weight of coal required to complete the target production task obtained by the server through the target production task. Whether the first speed information and the second speed information are abnormal includes that the server calculates the difference between the first speed information and the second speed information based on the first speed information and the second speed information to obtain the first difference; Determine whether the first difference is less than the preset speed information difference threshold: When the first difference is less than the preset first speed information difference threshold, it indicates that there is no abnormality in the first speed information and the second speed information. When the first difference is greater than or equal to the preset speed information difference threshold, it indicates that there is an anomaly in the first speed information and the second speed information. The abnormal data to be determined includes the server obtaining the first conveyor belt weight information and the second conveyor belt weight information based on the conveyor belt weight information. The second conveyor belt weight information is the conveyor belt weight information after a preset time interval of the first conveyor belt weight information; The server obtains the rate of change of the weight information of the conveyor belt based on the weight information of the first conveyor belt and the weight information of the second conveyor belt, and obtains the first rate of change. The server determines whether the first rate of change is greater than the set rate of change threshold. When the first rate of change is greater than the rate of change threshold, the first speed information is abnormal, and the server determines the first speed information as the first abnormal data. When the first rate of change is less than or equal to the rate of change threshold, the first rotational speed information is not abnormal. If there is no abnormality in the first rotation speed information, the server will make an anomaly judgment based on the second rotation speed information of the target production data. The server will then convert the target production data into the rotation speed information of the gears on the conveyor belt through a logical conversion network to obtain the third rotation speed information. The service obtains the second difference value by measuring the difference between the second speed information and the third speed information. The server determines whether the second difference is greater than the set second difference threshold. If the second difference is less than or equal to the preset second difference threshold, it means that the second speed information is not abnormal. When the second difference is greater than the preset second difference threshold, it indicates that the second speed information is abnormal, and the server determines the second speed information as the first abnormal data. The fourth rotational speed information includes information obtained by the server based on the first abnormal data, the first preset weight information, and the second preset weight information to acquire the rotational speed information of the conveyor belt. in, This indicates the fourth rotational speed information. This indicates the first preset weight information. Indicates the first rotational speed information. This indicates the second preset weight information. Indicates the second rotational speed information; The fourth rotational speed information also includes: when the first abnormal data is the first rotational speed information, it indicates that the first rotational speed information is abnormal and the first rotational speed sensor is abnormal. The server determines the second rotational speed information as the fourth rotational speed information and generates a warning message. When the first abnormal data is the second speed information, it indicates that there is an abnormality in the second speed information and the second speed sensor is abnormal. The server will then determine the first speed information as the fourth speed information and generate a warning message. When the first abnormal data is the first speed information and the second speed information, it means that both the first speed sensor and the second speed sensor are abnormal. The server sets 0 to the speed of the conveyor belt of the coal feeder and obtains the fourth speed information. If the first abnormal data is not found, it means that neither the first nor the second speed information is abnormal. The server calculates the speed information of the conveyor belt to obtain the fourth speed information.

2. The method for redundant speed measurement of a coal feeder as described in claim 1, characterized in that: The adjustment of the conveyor belt speed of the coal feeder includes the server using a non-disruptive conversion algorithm based on the fourth speed information to adjust the speed of the conveyor belt gear of the coal feeder to the fourth speed within a preset time, so that the conveyor belt gear of the coal feeder adjusts the fourth speed information.

3. A system employing the method for redundant speed measurement of a coal feeder as described in any one of claims 1 to 2, characterized in that: It includes a data acquisition module, a data processing and analysis module, a decision-making and control module, and an early warning information generation module; The data acquisition module includes a first speed information sensor unit, a second speed information sensor unit, and a pressure sensor unit; The first and second speed information sensor units send speed information to the speed information processing unit, respectively. The pressure sensor unit sends the conveyor belt weight information to the weight information processing unit. Each unit of the data acquisition module collects data and sends it to the data processing and analysis module. The data processing and analysis module includes a rotation speed information processing unit, a weight information processing unit, a target production data processing unit, an anomaly detection unit, and a weight information processing unit. The speed information processing unit calculates the difference between the first speed information and the second speed information and compares it with a preset threshold to determine whether there is an anomaly; The weight information processing unit calculates the rate of change of the conveyor belt weight information and compares it with a preset threshold to determine whether there is an anomaly. The target production data processing unit converts the target production data into gear speed information of the conveyor belt; the anomaly detection unit judges the abnormal data based on the results of the speed information processing unit and the weight information processing unit; the weight information processing unit determines the fourth speed information based on the weight information of the abnormal data. The decision-making and control module includes a decision-making unit and a control unit; The decision-making unit determines the fourth speed information based on the abnormal data and the output of the weight information processing unit. The control unit adjusts the speed of the coal feeder conveyor belt based on the fourth speed information and completes the adjustment within a preset time using a non-disturbance conversion algorithm. The warning information generation module generates warning information based on the anomaly detection results and sends it to staff or the system.

4. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method for measuring the speed redundancy of a coal feeder as described in any one of claims 1 to 2.

5. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the method for measuring the speed redundancy of a coal feeder as described in any one of claims 1 to 2.

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