Control method and system for preventing temperature jump

Abstract

The invention provides a control method and system for preventing temperature jump, and the method comprises the steps: detecting the input current of industrial equipment, constructing an input current FIFO detection queue of the industrial equipment according to the current data obtained in a current detection sequence, and calculating a current jump ratio according to the input current FIFO detection queue; the method comprises the following steps: acquiring temperature detection data of industrial equipment according to a temperature detection module of the industrial equipment, constructing a temperature FIFO (First In First Out) detection queue according to the sequence of the temperature detection data, and calculating a temperature jump ratio according to the temperature FIFO detection queue; and calculating a temperature jump correlation index according to the current jump ratio and the temperature jump ratio, generating a jump instruction of the industrial equipment according to the current jump ratio, the temperature jump ratio and the temperature jump correlation index, and controlling the jump operation of the industrial equipment according to the jump instruction.

Description

Technical Field

[0001] The present invention relates to the technical field of temperature control, and in particular to a method and system for preventing temperature jump control. Background Art

[0002] At present, there is a temperature control interlock system in existing industrial equipment, that is, a temperature detection control module is preset in the industrial equipment, and when the detected temperature reaches a preset threshold, the industrial equipment is controlled to trip to reduce the damage of the industrial equipment to high temperature, or the industrial equipment is controlled to trip when the temperature jump reaches a predetermined threshold. The existing method of preventing temperature jumps is mainly to determine whether there is a temperature jump by real-time detection of the slope of the temperature change, and then control the corresponding temperature control interlock system to determine whether to execute the corresponding industrial equipment trip operation.

[0003] However, the above-mentioned simple slope control method has many problems. There are many reasons for temperature jumps. For example, there may be environmental signal interference, voltage fluctuations of industrial equipment, and instantaneous short circuits and open circuits of related circuits. These may cause large errors in the temperature jump detection of the slope control method, which in turn may lead to frequent false trips of industrial equipment, thus affecting the operating income of the industrial equipment. Summary of the invention

[0004] One of the inventive purposes of the present invention is to provide a method and system for preventing temperature jump control. The method and system use a fixed-length FIFO queue (first-in-first-out queue) to construct an industrial equipment input current FIFO detection queue, and calculate the average value of the corresponding industrial equipment current based on the current FIFO detection queue, and perform input signal jump calculation based on the current average value of the current FIFO detection queue. The average value calculation of the current FIFO detection queue can effectively reduce the interference of environmental signals on industrial equipment, and reduce the interference caused by voltage fluctuations of industrial equipment.

[0005] Another inventive object of the present invention is to provide a method and system for preventing temperature jump control. The method and system construct a temperature FIFO detection queue based on a temperature detection module, and calculate the average value of the detected temperature based on the temperature FIFO detection queue, and calculate the detected temperature jump data based on the average value of the temperature detection queue. The average value calculated by the temperature FIFO detection queue can effectively reduce the impact of the environment on the temperature jump.

[0006] Another inventive object of the present invention is to provide a method and system for preventing temperature jump control. The method and system simultaneously utilize the current FIFO detection queue and the temperature FIFO detection queue to respectively calculate the corresponding detection current jump ratio and the detection temperature jump ratio, and generate a jump correlation index based on the detection current jump ratio and the detection temperature jump ratio, and use the jump correlation index as a control parameter for industrial equipment tripping, thereby effectively avoiding the phenomenon of industrial equipment false tripping caused by a simple temperature jump slope and improving the operating income of industrial equipment.

[0007] In order to achieve at least one of the above-mentioned invention objects, the present invention further provides a method for preventing temperature jump control, the method comprising: Detecting the input current of the industrial equipment, constructing an input current FIFO detection queue of the industrial equipment according to the current data obtained in the current detection sequence, and calculating the current jump ratio according to the input current FIFO detection queue; Acquire temperature detection data of the industrial equipment according to the temperature detection module of the industrial equipment, construct a temperature FIFO detection queue according to the order of the temperature detection data, and calculate the temperature jump ratio according to the temperature FIFO detection queue; A temperature jump correlation index is calculated according to the current jump ratio and the temperature jump ratio, and a trip instruction of the industrial equipment is generated according to the current jump ratio, the temperature jump ratio and the temperature jump correlation index, and a trip operation of the industrial equipment is controlled according to the trip instruction.

[0008] According to one of the preferred embodiments of the present invention, the input current FIFO detection queue construction method includes: presetting the capacity n of the input current FIFO detection queue, presetting the detection frequency of the input current of the industrial equipment, obtaining the initial current I0 at the initial detection time t0 of the industrial equipment, inputting the initial current I0 into the current FIFO detection queue for storage, and storing the detection current I in the current FIFO detection queue in sequence according to the detection frequency of the input current, until n detection currents I are stored in the current FIFO detection queue, thereby obtaining a first current FIFO detection queue F1 (I).

[0009] According to another preferred embodiment of the present invention, after obtaining the first current FIFO detection queue F1 (I), the detected current data is further stored in a new current FIFO detection queue according to the current detection frequency and sequence, and the last current data of the first current FIFO detection queue F1 (I) is defined as I n-1 , according to the detection order to obtain the new current data I n , and the new current data I nThe current data are stored in a new current FIFO detection queue. When the new current FIFO detection queue is fully populated with n current data in sequence, a second current FIFO detection queue F2 (I) is obtained.

[0010] According to another preferred embodiment of the present invention, the current jump ratio is defined as P 1， The method for calculating the current jump ratio includes: calculating the average value of all current data in the first current FIFO detection queue F1 (I) , and calculate the average value of all current data of the second current FIFO detection queue F2 (I) , then the current jump ratio is P 1= , define the previous current FIFO detection queue F m (I) and the current FIFO detection queue F m+1 The current jump ratio of (I) is P m , according to the current jump ratio including P m Execute the tripping operation of the industrial equipment at the time point corresponding to the current FIFO detection queue.

[0011] According to another preferred embodiment of the present invention, the temperature FIFO detection queue construction method includes: presetting the temperature FIFO detection queue capacity n that is the same as the input current FIFO detection queue, and setting the same temperature detection frequency as the current detection, and obtaining the initial temperature data T0 corresponding to the industrial equipment at the same initial detection time t0, and inputting the initial temperature data T0 into the temperature FIFO detection queue for storage, and storing the temperature FIFO detection queue in the order of temperature detection frequency until the temperature FIFO detection queue is full of n temperature data T, thereby obtaining a first temperature FIFO detection queue H1 (T).

[0012] According to another preferred embodiment of the present invention, after obtaining the first temperature FIFO detection queue H1 (T), the detected temperature data is further stored in a new temperature FIFO detection queue according to the temperature detection frequency and order, and the last temperature data of the first temperature FIFO detection queue H1 (T) is defined as T n-1 , according to the detection order to obtain the new temperature data T n , and the new temperature data T n The temperature data are stored in a new temperature FIFO detection queue. When the new temperature FIFO detection queue is fully populated with n temperature data in sequence, a second temperature FIFO detection queue H2 (T) is obtained.

[0013] According to another preferred embodiment of the present invention, the method for calculating the temperature jump ratio includes: defining the temperature jump ratio as Q1, calculating the average value of all temperature data in the first temperature FIFO detection queue H1 (T) , and calculate the average value of all temperature data of the second temperature FIFO detection queue H2 (T) , the temperature jump ratio is Q1= , define the previous temperature FIFO detection queue H m (T) and the current temperature FIFO detection queue H m+1 The temperature jump ratio of (T) is Q m , then the temperature jump ratio is Q m = .

[0014] According to another preferred embodiment of the present invention, the current jump ratio P of the same queue m as the current FIFO detection queue and the temperature FIFO detection queue is m And temperature jump ratio Q m Generate the corresponding temperature jump correlation index λ=P m / Q m , respectively set the current jump ratio P m , Temperature jump ratio Q m and a threshold range of a jump correlation index, and according to the threshold range, at least one parameter is set to satisfy an industrial equipment trigger condition within the threshold range to generate a jump instruction for the industrial equipment.

[0015] In order to achieve at least one of the above-mentioned invention purposes, the present invention further provides a temperature jump prevention control system, wherein the system executes the above-mentioned temperature jump prevention control method.

[0016] The present invention further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and the computer program executes the temperature jump prevention control method. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Shown is a flow chart of a method for preventing temperature jump control according to the present invention. DETAILED DESCRIPTION

[0018] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0019] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0020] Please combine Figure 1 , the present invention discloses a method and system for preventing temperature jump control, wherein the method mainly includes the following steps: first, it is necessary to obtain the input current data of the industrial equipment and the temperature data detected by the relevant temperature monitoring system, wherein the temperature monitoring system will start the interlocking reaction of the industrial equipment after receiving the temperature jump data, thereby causing the industrial equipment to jump, and the present invention uses a FIFO queue to store the input current and the detected temperature data respectively, and performs data processing on the data of different FIFO queues and then performs relevant temperature jump detection, and screens out the temperature jump data that meets the industrial equipment jumping. The FIFO queue and data processing operation used in the present invention can smooth the relevant temperature jump data, effectively reduce or avoid the phenomenon of industrial equipment jumping due to temperature jumps caused by environmental signal interference, circuit fluctuations and related instantaneous circuit problems in single or individual data. And the normal jumping operation of industrial equipment can also be guaranteed by the FIFO queue in the present invention.

[0021] Specifically, the present invention needs to configure two FIFO queues, namely, an input current FIFO detection queue and a temperature FIFO detection queue, wherein the input current FIFO detection queue is used to store the input current of the industrial equipment. Generally speaking, the operating temperature and input current of the industrial equipment are strongly correlated parameters, so the input current detection can be used as one of the reference parameters for the normal tripping operation of the corresponding industrial equipment. The temperature FIFO detection queue can detect the temperature change during the operation of the industrial equipment, and the data processing of the temperature FIFO detection queue also smoothes the environmental interference or accidental error of the corresponding temperature detection to a certain extent, so it has a significant effect on limiting the fluctuation of the temperature jump of the temperature FIFO detection queue, and at the same time has an accurate identification effect on the temperature jump caused by the failure of the real industrial equipment. The present invention is further configured based on the ratio calculation of the relevant data of the input current FIFO detection queue and the temperature FIFO detection queue to obtain the temperature jump correlation index λ, which can reflect the abnormal situation of the equipment failure to a certain extent. The temperature jump correlation index λ can obtain the correlation between the input current change and the actual temperature change of the industrial equipment, and use the correlation as a reference data for the abnormal temperature jump.

[0022] The method for constructing the input current FIFO detection queue includes: presetting the capacity n of the input current FIFO detection queue, wherein the capacity n indicates that at most n input current data are filled in the input current FIFO detection queue. The detection frequency of the input current is further preset, and input current data of different detection times are sequentially filled into the input current FIFO detection queue according to the detection frequency of the input current, until the input current FIFO detection queue is filled. Specifically, the initial detection time of the input current is defined as t 0, At this time, the initial current data is detected to be I0, and the initial current data I0 is filled into the first position of the input current FIFO detection queue. At this time, the input current FIFO detection queue is not fully filled, and the data processing operation of the input current FIFO detection queue is not triggered; when the second input current I1 is detected and obtained at the next time point t1 according to the detection frequency of the input current, the second input current I1 is filled into the second position of the input current FIFO detection queue, and the detection sequence is followed until the nth position of the input current FIFO detection queue is filled. At this time, the data processing operation of the input current FIFO detection queue is triggered, and the average value of all current data in the first current FIFO detection queue F1 (I) is calculated. , and take the average value of all current data of the first current FIFO detection queue F1 (I) as a whole The last current data of the first current FIFO detection queue F1 (I) is I n-1 .

[0023] After completing the construction of the first current FIFO detection queue F1 (I), further acquiring new current data as I according to the detection sequence n , and the new current data I n The current data is stored in a new current FIFO detection queue. When the new current FIFO detection queue is filled with n current data in sequence, a second current FIFO detection queue F2 (I) is obtained. At this time, the last current data in the second current FIFO detection queue F2 (I) is I 2n-1 . Further calculate the average value of all current data of the second current FIFO detection queue F2 (I) and the average value of all current data of the second current FIFO detection queue F2 (I) Calculate the current jump ratio as a whole: P 1= , at this time, P1 represents the current jump ratio, and the current jump ratio reflects the overall change between different input current FIFO detection queues F (I) to a certain extent. The capacity n in the input current FIFO detection queue in the present invention can be set to 5-20, and the input current detection frequency can be set to detect once every 1 / s-5 / s. It should be noted that the capacity n and the input current detection frequency in the input current FIFO detection queue in the present invention can be set according to specific conditions, and the present invention does not make specific restrictions.

[0024] It is worth mentioning that the current jump ratio calculation in the present invention effectively smoothes the current fluctuations caused by factors including but not limited to environmental signal influences and power grid circuit fluctuations, so that the final current jump is more in line with actual industrial equipment failures. Therefore, the current jump ratio P1 obtained based on the input current FIFO detection queue can be used as a reference data for industrial equipment jump operations, wherein the present invention can set thresholds and other methods to generate industrial equipment jump instructions, which will not be described in detail in the present invention.

[0025] Furthermore, the present invention also performs the following data processing based on the detected temperature data: constructing a temperature FIFO detection queue, and the temperature FIFO detection queue construction method includes: presetting the temperature FIFO detection queue capacity n that is the same as the input current FIFO detection queue, and setting the same temperature detection frequency as the current detection, and obtaining the initial temperature data T0 corresponding to the industrial equipment at the same initial detection time t0, and inputting the initial temperature data T0 into the temperature FIFO detection queue for storage, and in the order of temperature detection frequency until the temperature FIFO detection queue is full of n temperature data T, to obtain a first temperature FIFO detection queue H1 (T). Since the first temperature FIFO detection queue H1 (T) is the same as the first current FIFO detection queue F1 (I) in terms of initial detection time and detection frequency, there is a certain correlation between the data of the two.

[0026] After obtaining the first temperature FIFO detection queue H1 (T), the detected temperature data is further stored in a new temperature FIFO detection queue according to the temperature detection frequency and order, and the last temperature data of the first temperature FIFO detection queue H1 (T) is defined as T n-1 , according to the detection order to obtain the new temperature data T n , and the new temperature data T n The temperature data are stored in a new temperature FIFO detection queue. When the new temperature FIFO detection queue is fully populated with n temperature data in sequence, a second temperature FIFO detection queue H2 (T) is obtained.

[0027] The method for calculating the temperature jump ratio includes: defining the temperature jump ratio as Q1, calculating the average value of all temperature data in the first temperature FIFO detection queue H1 (T) , and calculate the average value of all temperature data of the second temperature FIFO detection queue H2 (T) , the temperature jump ratio is Q1= .

[0028] In order to generalize the description of the temperature FIFO detection queue, the present invention defines the previous temperature FIFO detection queue H m (T) and the current temperature FIFO detection queue H m+1 The temperature jump ratio of (T) is Q m , then the temperature jump ratio is: Q m = .

[0029] Further, the current jump ratio P of the current FIFO detection queue and the temperature FIFO detection queue of the same queue m is m And temperature jump ratio Q m Generate the corresponding temperature jump correlation index λ=P m / Q m , respectively set the current jump ratio P m , Temperature jump ratio Q m and a threshold range of a jump correlation index, and according to the threshold range, at least one parameter is set to satisfy an industrial equipment trigger condition within the threshold range to generate a jump instruction for the industrial equipment. Therefore, the present invention can effectively control abnormal jumps of temperature under various factors, and can also better realize the jump control of industrial equipment under real temperature jump conditions, thereby greatly improving the production efficiency of the industrial equipment.

[0030] The embodiments disclosed in the present invention, the process described above with reference to the flowchart can be implemented as a computer software program. The embodiments disclosed in the present invention include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program contains a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from the network through the communication part, and / or installed from a removable medium. When the computer program is executed by the central processing unit (CPU), the functions defined in the method of the present application are executed. It should be noted that the computer-readable medium described in the present application can be a computer-readable signal medium or a computer-readable storage medium or any combination of the two. The computer-readable storage medium can be, for example, but not limited to, a system, device or device of an electrical, magnetic, optical, electromagnetic, infrared segment, or semiconductor, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to, electrical connections with one or more wire segments, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In the present application, a computer-readable storage medium may be any tangible medium containing or storing a program that may be used by or in conjunction with an instruction execution system, apparatus, or device. In the present application, a computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, which carries a computer-readable program code. Such propagated data signals may be of various types, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device. The program code contained on a computer-readable medium may be transmitted using any suitable medium, including but not limited to wireless segments, wire segments, optical cables, RF, etc., or any suitable combination thereof.

[0031] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present invention. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs the specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0032] Those skilled in the art should understand that the embodiments of the present invention described and shown in the drawings are only examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments. Without departing from the principles, the implementation methods of the present invention may be deformed or modified in any way.

Claims

1. A method for preventing temperature jump control, characterized in that: The method comprises: Detecting the input current of the industrial equipment, constructing an input current FIFO detection queue of the industrial equipment according to the current data obtained in the current detection sequence, and calculating the current jump ratio according to the input current FIFO detection queue; Acquire temperature detection data of the industrial equipment according to the temperature detection module of the industrial equipment, construct a temperature FIFO detection queue according to the order of the temperature detection data, and calculate the temperature jump ratio according to the temperature FIFO detection queue; A temperature jump correlation index is calculated according to the current jump ratio and the temperature jump ratio, and a trip instruction of the industrial equipment is generated according to the current jump ratio, the temperature jump ratio and the temperature jump correlation index, and a trip operation of the industrial equipment is controlled according to the trip instruction.

2. A method for preventing temperature jump control according to claim 1, characterized in that: The input current FIFO detection queue construction method includes: presetting the capacity n of the input current FIFO detection queue, presetting the detection frequency of the input current of the industrial equipment, obtaining the initial current I0 of the industrial equipment at the initial detection time t0, inputting the initial current I0 into the input current FIFO detection queue for storage, and storing the detection current I in the current FIFO detection queue in sequence according to the detection frequency of the input current, until n detection currents I are stored in the current FIFO detection queue, thereby obtaining a first current FIFO detection queue F1 (I).

3. A method for preventing temperature jump control according to claim 2, characterized in that: After obtaining the first current FIFO detection queue F1 (I), further storing the detected current data in a new current FIFO detection queue according to the current detection frequency and sequence, defining the last current data of the first current FIFO detection queue F1 (I) as I n-1 , according to the detection order to obtain the new current data I n , and the new current data I n The current data are stored in a new current FIFO detection queue. When the new current FIFO detection queue is fully populated with n current data in sequence, a second current FIFO detection queue F2 (I) is obtained.

4. A method for preventing temperature jump control according to claim 3, characterized in that: The current jump ratio is defined as P 1， The method for calculating the current jump ratio includes: calculating the average value of all current data in the first current FIFO detection queue F1 (I) , and calculate the average value of all current data of the second current FIFO detection queue F2 (I) , then the current jump ratio is P 1= , define the previous current FIFO detection queue F m (I) and the current FIFO detection queue F m+1 The current jump ratio of (I) is P m , according to the current jump ratio including P m Execute the tripping operation of the industrial equipment at the time point corresponding to the current FIFO detection queue.

5. A method for preventing temperature jump control according to claim 4, characterized in that: The temperature FIFO detection queue construction method includes: presetting a temperature FIFO detection queue capacity n that is the same as an input current FIFO detection queue, setting a temperature detection frequency that is the same as current detection, and obtaining initial temperature data T0 corresponding to the industrial equipment at the same initial detection time t0, and inputting the initial temperature data T0 into the temperature FIFO detection queue for storage, and storing the temperature data T in the order of the temperature detection frequency until the temperature FIFO detection queue is full of n temperature data T, thereby obtaining a first temperature FIFO detection queue H1 (T).

6. A method for preventing temperature jump control according to claim 5, characterized in that: After obtaining the first temperature FIFO detection queue H1 (T), the detected temperature data is further stored in a new temperature FIFO detection queue according to the temperature detection frequency and order, and the last temperature data of the first temperature FIFO detection queue H1 (T) is defined as T n-1 , according to the detection order to obtain the new temperature data T n , and the new temperature data T n The temperature data are stored in a new temperature FIFO detection queue. When the new temperature FIFO detection queue is fully populated with n temperature data in sequence, a second temperature FIFO detection queue H2 (T) is obtained.

7. A method for preventing temperature jump control according to claim 6, characterized in that: The method for calculating the temperature jump ratio includes: defining the temperature jump ratio as Q1, calculating the average value of all temperature data in the first temperature FIFO detection queue H1 (T) , and calculate the average value of all temperature data of the second temperature FIFO detection queue H2 (T) , the temperature jump ratio is Q1= , define the previous temperature FIFO detection queue H m (T) and the current temperature FIFO detection queue H m+1 The temperature jump ratio of (T) is Q m , then the temperature jump ratio is Q m = .

8. A method for preventing temperature jump control according to claim 7, characterized in that: The current FIFO detection queue and the temperature FIFO detection queue have the same current jump ratio P of the queue m. m And temperature jump ratio Q m Generate the corresponding temperature jump correlation index λ=P m / Q m , respectively set the current jump ratio P m , Temperature jump ratio Q m and a threshold range of a jump correlation index, and according to the threshold range, at least one parameter is set to satisfy an industrial equipment trigger condition within the threshold range to generate a jump instruction for the industrial equipment.

9. A control system for preventing temperature jump, characterized in that: The system executes a temperature jump prevention control method as described in any one of claims 1-8.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and the computer program executes a temperature jump prevention control method according to any one of claims 1 to 8.

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