CN114136473B - Acquisition method of power supply shell Wen Fangcha, electronic equipment and computer storage medium - Google Patents
Acquisition method of power supply shell Wen Fangcha, electronic equipment and computer storage medium Download PDFInfo
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- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
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Abstract
The application provides a method for acquiring a power supply shell Wen Fangcha, electronic equipment and a computer storage medium, wherein the method acquires environmental temperature data of a rail transit signal power supply system and shell temperature data of a power supply in real time in a service process; removing the influence of the environmental temperature data on the shell temperature data to obtain processed shell temperature data; grouping the processed shell temperature data; determining the number of different shell temperature values in each group; each set of shells Wen Fangcha of the power supply is determined according to the different shell temperature values and the number of the different shell temperature values in each set. According to the method provided by the proposal, each group of shells Wen Fangcha of the power supply is obtained after the influence of the environmental temperature data on the shell temperature data is removed according to the environmental temperature data of the rail transit signal power supply system and the shell temperature data of the power supply, so that the real-time and accurate acquisition of the shell temperature variance data is realized.
Description
Technical Field
The present application relates to the field of rail transit technologies, and in particular, to a method for obtaining a power supply shell Wen Fangcha, an electronic device, and a computer storage medium.
Background
The rail transit signal power supply system is subjected to the impact of various stresses for a long time in the service process, and degradation is inevitably generated. Its degradation can severely affect the proper operation of its back-end load equipment. Therefore, the degradation characterization parameters of the power supply are obtained in real time in the service process of the power supply, and the method has important significance for evaluating the degradation state of the power supply and guaranteeing the safety and reliability of a rail traffic signal system.
Currently, output voltage and ripple voltage are often used as degradation characterization parameters of a power supply. And evaluating the state of the power supply according to the change degree of the degradation characterization parameters in the service process of the power supply. However, since the ripple voltage of the power supply is as high as 10-100MHz, the sampling frequency of the monitoring device is required to be high. In addition, the amplitude of the ripple voltage is smaller, usually 1-10mV, so that the accuracy requirement on the monitoring equipment is higher. In addition, the ripple voltage data has a large data size, and the requirements for data storage and data processing are extremely high. The acquisition cost and the processing cost of the ripple voltage data are greatly increased, and the generalization and popularization are not facilitated.
In an ideal case, the output voltage may be indicative of degradation of the power supply. But the power supply in practical application is internally provided with a voltage feedback regulating circuit. The output voltage variation of the power supply is small under the influence of the regulation and control of the internal voltage feedback circuit. Therefore, the output voltage cannot accurately represent the degradation degree of the power supply in the actual service process.
Based on the method, proper degradation characterization parameters need to be found, and a real-time acquisition method of the degradation characterization parameters is provided so as to efficiently characterize the degradation of the rail transit signal power supply system in the service process, and meanwhile, the data sampling amount and the data processing cost are reduced.
It is noted that during the power source degradation process, the action of the internal feedback regulating circuit can promote the fluctuation degree of the shell temperature of the power source to increase, which is shown by the increase of the variance of the shell temperature. Accordingly, the housing Wen Fangcha may be used as a degradation characterizing parameter for the power supply.
Since the shell Wen Fangcha is processed according to the shell temperature of the power supply and the shell temperature variance is affected by external factors, it is necessary to provide real-time accurate acquisition of the shell temperature variance data.
Disclosure of Invention
In order to solve one of the technical defects, the application provides a method, equipment and medium for acquiring the shell temperature variance of a rail transit signal power supply system.
In a first aspect of the present application, there is provided a power supply case temperature variance obtaining method, the method comprising:
In the service process, acquiring environmental temperature data of a rail transit signal power supply system and shell temperature data of a power supply in real time;
Removing the influence of the environmental temperature data on the shell temperature data to obtain processed shell temperature data;
grouping the processed shell temperature data;
determining the number of different shell temperature values in each group;
each set of shells Wen Fangcha of the power supply is determined according to the different shell temperature values and the number of different shell temperature values in each set.
Optionally, the grouping the processed shell temperature data includes:
And grouping the processed shell temperature data according to the acquisition time of the processed shell temperature data.
Optionally, the determining the different shell temperature values and the number of different shell temperature values in each group includes:
For any one of the groups,
Sorting the shell temperature data processed in any group;
Taking the shell temperature data with different ordered data values as different shell temperature values of any group;
the number of times each different shell temperature value occurs in the ranking is taken as the number of each different shell temperature value.
Optionally, in the service process, acquiring the environmental temperature data of the rail traffic signal power supply system and the shell temperature data of the power supply in real time includes:
In the service process, acquiring environmental temperature data of a rail transit signal power supply system and shell temperature data of a power supply in real time through temperature monitoring equipment;
Wherein the temperature monitoring device comprises a plurality of thermocouples; wherein the number of thermocouples is greater than the number of power sources;
the surface of each power supply is externally connected with at least one thermocouple, and the shell temperature data of each power supply are collected by the externally connected thermocouples;
The residual thermocouple is arranged in the rail transit signal power supply system, and the environmental temperature data are collected by the residual thermocouple.
Optionally, the removing the influence of the ambient temperature data on the shell temperature data to obtain processed shell temperature data includes:
and taking the difference between the shell temperature data and the environment temperature data as processed shell temperature data.
Optionally, the determining the shell temperature variance of each group of the power supply according to the different shell temperature values and the number of the different shell temperature values in each group includes:
normalizing the number of different shell temperature values in each group;
and determining each group of shells Wen Fangcha of the power supply according to different shell temperature values in each group and the normalized quantity of the different shell temperature values.
Optionally, the normalizing the number of the different shell temperature values in each group includes:
For the number of any shell temperature values of any one group, the normalized number is the quotient of the number of any shell temperature values of the any one group and the sum of the numbers of all shell temperature values in the any one group.
Optionally, the determining the shell temperature variance of each group of the power supply according to the different shell temperature values and the normalized number of the different shell temperature values in each group includes:
For any one of the groups,
Determining the shell temperature average value of any group as the product of a set formed by different shell temperature values in any group and a set transpose formed by the normalized quantity of different shell temperature values in any group;
the any set of shells Wen Fangcha is determined based on the shell temperature average of the any set.
In a second aspect of the present application, there is provided an electronic apparatus comprising:
A memory;
A processor; and
A computer program;
Wherein the computer program is stored in the memory and configured to be executed by the processor to implement the method as described in the first aspect above.
In a third aspect of the present application, there is provided a computer-readable storage medium having a computer program stored thereon; the computer program is executed by a processor to implement the method as described in the first aspect above.
The application provides a method for acquiring a power supply shell Wen Fangcha, electronic equipment and a computer storage medium, wherein the method acquires environmental temperature data of a rail transit signal power supply system and shell temperature data of a power supply in real time in a service process; removing the influence of the environmental temperature data on the shell temperature data to obtain processed shell temperature data; grouping the processed shell temperature data; determining the number of different shell temperature values in each group; each set of shells Wen Fangcha of the power supply is determined according to the different shell temperature values and the number of the different shell temperature values in each set.
According to the method provided by the proposal, each group of shells Wen Fangcha of the power supply is obtained after the influence of the environmental temperature data on the shell temperature data is removed according to the environmental temperature data of the rail transit signal power supply system and the shell temperature data of the power supply, so that the real-time and accurate acquisition of the shell temperature variance data is realized.
In addition, in one implementation, the processed shell temperature data is grouped according to the time of acquisition of the processed shell temperature data. The power supply shell Wen Fangcha is divided into the power supply shell Wen Fangcha of each group by grouping, and the grouping is based on the acquisition time of shell temperature data, so that the time sequence correlation of the shell temperature data in the groups is ensured, the shell temperature data in each group can accurately reflect the degradation condition of the power supply in the acquisition time, and the accuracy of the final shell Wen Fangcha is ensured.
In addition, in one implementation, for any one of the groups, the shell temperature data processed in any one of the groups is ranked, and the different shell temperature values and the number of different shell temperature values in each group are determined according to the ranking. The different shell temperature values and the number of the different shell temperature values in each group are determined through sequencing, so that the determination efficiency and accuracy of the different shell temperature values and the number of the different shell temperature values can be effectively improved.
In addition, in one implementation, the temperature monitoring equipment is used for acquiring the environmental temperature data of the medium rail transit signal power supply system and the shell temperature data of the power supply in real time, and because the temperature monitoring equipment is provided with only one thermocouple for each power supply to acquire the targeted shell temperature data, the accuracy of the acquired shell temperature data is ensured, and the accuracy of the final shell Wen Fangcha is further ensured.
In addition, in one implementation, the difference between the shell temperature data and the ambient temperature data is used as the processed shell temperature data, so that the shell temperature data adopted in the final shell temperature variance calculation does not include the influence of the ambient temperature, the deviation between the calculated value and the actual value of the shell temperature variance caused by the influence of the ambient temperature on the shell temperature variance is avoided, and the finally calculated shell Wen Fangcha can accurately represent the actual condition of the power supply.
In addition, in one implementation, the number of different shell temperature values is normalized, and each set of shells Wen Fangcha of the power supply is determined according to the different shell temperature values in each set and the normalized number of different shell temperature values. The comparison between the shell temperature values of each group is ensured through normalization, and the calculability of determining the shell temperature variance of each group through the normalized quantity of the shell temperature values of each different group is ensured.
In addition, in one implementation, the normalization scheme of the shell temperature values is defined by normalizing the ratio of the number of different shell temperature values to the total number of groups.
In addition, in one implementation, the shells Wen Junzhi of each group are determined according to the set formed by the different shell temperature values in each group and the set formed by the normalized number of the different shell temperature values in each group, and then the shell Wen Fangcha of any group is determined based on the shell temperature average value of any group, so that the implementation scheme of variance is defined.
According to the electronic equipment provided by the application, the computer program is executed by the processor to remove the influence of the environmental temperature data on the shell temperature data according to the environmental temperature data of the rail transit signal power supply system and the shell temperature data of the power supply to obtain each group of shells Wen Fangcha of the power supply, so that the real-time and accurate acquisition of the shell temperature variance data is realized.
The computer program on the computer readable storage medium is executed by the processor to remove the influence of the environmental temperature data on the shell temperature data according to the environmental temperature data of the rail transit signal power supply system and the shell temperature data of the power supply to obtain each group of shells Wen Fangcha of the power supply, so that the real-time and accurate acquisition of the shell temperature variance data is realized.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
fig. 1 is a schematic flow chart of a power supply shell temperature variance obtaining method according to an embodiment of the present application;
fig. 2 is a schematic diagram of an acquisition architecture of a temperature monitoring device according to an embodiment of the present application;
FIG. 3 is a schematic diagram illustrating a processing of shell temperature data and ambient temperature data according to an embodiment of the present application;
fig. 4 is a schematic diagram of a change curve of a shell temperature mean value and a shell temperature variance according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following detailed description of exemplary embodiments of the present application is provided in conjunction with the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present application and not exhaustive of all embodiments. It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other.
In the process of realizing the application, the inventor finds that the action of the internal feedback regulating circuit can promote the fluctuation degree of the shell temperature of the power supply to increase in the process of power supply degradation, and the fluctuation degree is expressed as the increase of the variance of the shell temperature. Accordingly, the housing Wen Fangcha may be used as a degradation characterizing parameter for the power supply. However, since the shell Wen Fangcha is processed according to the shell temperature of the power supply and the shell temperature variance is affected by external factors, it is necessary to provide real-time accurate acquisition of the shell temperature variance data.
In view of the above problems, the embodiments of the present application provide a method for obtaining a power supply shell Wen Fangcha, an electronic device, and a computer storage medium, where the method obtains, in real time, environmental temperature data of a rail transit signal power supply system and shell temperature data of a power supply in a service process; removing the influence of the environmental temperature data on the shell temperature data to obtain processed shell temperature data; grouping the processed shell temperature data; determining the number of different shell temperature values in each group; each set of shells Wen Fangcha of the power supply is determined according to the different shell temperature values and the number of the different shell temperature values in each set. According to the method provided by the proposal, each group of shells Wen Fangcha of the power supply is obtained after the influence of the environmental temperature data on the shell temperature data is removed according to the environmental temperature data of the rail transit signal power supply system and the shell temperature data of the power supply, so that the real-time and accurate acquisition of the shell temperature variance data is realized.
In order to avoid the influence of environmental factors on the shell temperature, the scheme of the application can respectively acquire the environmental temperature and the shell temperature data and remove the influence of the environmental temperature from the shell temperature data. In addition, in order to obtain the shell temperature more accurately, the scheme of the application can group the data and obtain the final shell temperature data according to the data of each group. Because the data are subdivided, each group of data can more accurately reflect the shell temperature characteristics of the group of data, so that the final shell temperature is obtained by integrating the characteristics of each group of data, and the method is more accurate.
Referring to fig. 1, the implementation process of the method for obtaining the power supply shell Wen Fangcha provided in this embodiment is as follows:
101, acquiring environmental temperature data of a rail transit signal power supply system and shell temperature data of a power supply in real time in a service process.
When the method is specifically implemented, the environmental temperature data of the rail transit signal power supply system and the shell temperature data of the power supply can be obtained in real time through the temperature monitoring equipment in the service process.
Wherein the temperature monitoring device comprises a plurality of thermocouples including n+1 thermocouples; wherein the number of thermocouples is more than that of power supplies, and n is the number of the power supplies;
The surface of each power supply is externally connected with at least one thermocouple, each n thermocouples are respectively externally connected with the surface of each power supply, and the shell temperature data of each power supply are collected by the externally connected thermocouples;
The residual thermocouples are arranged in the rail transit signal power supply system and are used for collecting environmental temperature data and are collected by the residual thermocouples.
For example, if the number of power sources is n, the temperature monitoring device may include n+1 thermocouples.
The n thermocouples are respectively externally connected to the surface of each power supply and are used for collecting shell temperature data of each power supply.
The rest thermocouples are arranged in the rail transit signal power supply system and are used for collecting environmental temperature data.
The power supply is a power supply for acquiring the track traffic signal power supply system, and the power supply is a power supply for acquiring the shell Wen Fangcha, and can be all power supplies in the track traffic signal power supply system or part of power supplies in the track traffic signal power supply system. The present embodiment does not limit the number of power sources in this step.
There are several power supplies required to acquire the housing Wen Fangcha, and there are several +1 thermocouples in the temperature monitoring device, several of which are used to measure the housing temperature data of each power supply, and 1 more for measuring the ambient temperature data.
Referring to the collection architecture of the temperature monitoring device shown in fig. 2, thermocouples (thermocouples 201-1 to 201-n) on the temperature monitoring device 201 are externally connected to the surface of each power source (power source 202-1 to 202-n) in the rail transit signal power source system 202, and shell temperature data T i,j of each power source is collected in real time. And the thermocouple 201-0 is placed in the rail transit signal power supply system 202 to acquire the ambient temperature T env in real time.
Where i is a power supply identifier, i=1, 2, … n, j is a shell temperature data identifier, j=1, 2, … m, and m is the total number of shell temperature data. T i,j＝[Hi,1,Hi,2,…,Hi,m],Hi,m is the mth shell temperature data of the ith power supply. The data volume of the acquired shell temperature data is the same as the data volume of the environment temperature data, so that the total data volume of the environment temperature data is also m, and T env＝[h1,h2,…,hm],hm is the mth environment temperature data.
In fig. 2, only the case temperature data is measured by the thermocouples 201-1 to 201-n, and the case temperature data is measured by the thermocouple 201-0, and in a specific implementation, any one of the thermocouples 201-0 to 201-n may measure the case temperature, and the case temperature data is measured by the remaining n thermocouples, and the case temperature data is not limited by which thermocouple measures the case temperature. Also, the present embodiment is not limited to which thermocouple specifically measures which power supply.
In the temperature monitoring device, only one thermocouple is configured for each power supply, and targeted shell temperature data acquisition is performed, so that the accuracy of the acquired shell temperature data is ensured, and the accuracy of a final shell Wen Fangcha is further ensured.
In addition, if there are a plurality of power sources for acquiring the shell Wen Fangcha, the following steps 102 to 105 are performed for each power source to determine the shell Wen Fangcha of each power source, and for convenience of description, only any one power source i will be taken as an example, and for the acquisition scheme of other power source shells Wen Fangcha, reference may be made to the scheme of the power source i, which will not be described in this embodiment.
102, Removing the influence of the environmental temperature data on the shell temperature data to obtain the processed shell temperature data.
For example, a difference between the case temperature data and the ambient temperature data is used as the processed case temperature data.
If the shell temperature data of the ith power supply is T i,j＝[Hi,1,Hi,2,…,Hi,m and the ambient temperature data is T env＝[h1,h2,…,hm obtained in step 101, the shell temperature T i,process＝Ti,j-Tenv affected by the temperature in the incubator is removed.
By executing the step, the shell temperature data adopted in the final shell temperature variance calculation can be free of the influence of the ambient temperature, so that the deviation between the calculated value and the actual value of the shell temperature variance caused by the influence of the ambient temperature on the shell temperature variance is avoided, and the finally calculated shell Wen Fangcha can accurately represent the actual condition of the power supply.
103, Grouping the processed shell temperature data.
Specifically, the processed shell temperature data may be grouped according to the acquisition time of the processed shell temperature data.
The number of the shell temperature data of each group may be the same or different, and the present embodiment is not limited thereto.
For example, the processed shell temperature data T i,process obtained in step 102 is divided into r groups, each group of shell temperature data being denoted as T group,seq＝[Ti,1,Ti,2,…,Ti,r, where T i,r is the set of processed shell temperature data in the r group.
The power supply shell Wen Fangcha is divided into the power supply shell Wen Fangcha of each group by grouping, and the grouping is based on the acquisition time of shell temperature data, so that the time sequence correlation of the shell temperature data in the groups is ensured, the shell temperature data in each group can accurately reflect the degradation condition of the power supply in the acquisition time, and the accuracy of the final shell Wen Fangcha is ensured.
104, Determining the number of different shell temperature values in each group.
For example, for any group, the shell temperature data processed in any group is ordered, and the shell temperature data with different ordered data values is used as the different shell temperature values of any group. The number of times each different shell temperature value occurs in the sequence is taken as the number of each different shell temperature value.
The sorting may be ascending sorting or descending sorting, and the embodiment is not limited by a low sorting rule.
Taking ascending order as an example, how to determine the different shell temperature values and the number of different shell temperature values of any set of shell temperature data obtained in step 103, such as group-based shell temperature data T i,group, is described in detail.
Where group is a group identity, group=1, 2, … r.
And (3) carrying out ascending order on the shell temperature data of the group obtained in the step (103), and screening and storing a single shell temperature value of the shell temperature data of the group as T group (namely, T group is a set formed by different shell temperature values in the group).
And obtaining the corresponding times N group,tem of each shell temperature in ascending order. Wherein, tem is a shell temperature value identifier, and N group,tem is the number of the temperature values of the tem in the group. tem=1, 2, … q group,qgroup is the number (i.e. total number) of different shell temperature values in the group. Since the shell temperature values are the number of shell temperature data having different values, the total number of shell temperature values q group of the group is less than or equal to the total number of shell temperature data of the group.
Thereafter, N group,tem is divided by the amount of shell temperature data Σ temNgroup,tem in each group (i.e., Σ temNgroup,tem is the sum of the amounts of the shell temperature values in the group), to obtain the normalized amount N group,tem of the (tem) th shell temperature value (i.e., N group,tem is the normalized amount of the (tem) th shell temperature value).
The step determines different shell temperature values and the number of the different shell temperature values in each group through sequencing, so that the determination efficiency and accuracy of the different shell temperature values and the number of the different shell temperature values can be effectively improved.
105, Each set of shells Wen Fangcha of the power supply is determined according to the different shell temperature values and the number of different shell temperature values in each set.
In specific implementation, the number of different shell temperature values in each group is normalized. And then determining each group of shells Wen Fangcha of the power supply according to different shell temperature values in each group and the normalized quantity of each different shell temperature value.
When the number of the different shell temperature values in each group is normalized, the normalized number of the number of any shell temperature value in any group is the quotient of the number of any shell temperature value in any group and the sum of the numbers of all shell temperature values in any group.
For example, for any one set, the number of any one shell temperature value in any one set is normalized by the following formula:
Wherein group is a group identifier, tem is a shell temperature value identifier, N group,tem is the number of the tem-th shell temperature values in the group, Σ temNgroup,tem is the sum of the numbers of the shell temperature values in the group, and N group,tem is the normalized number of the tem-th shell temperature values.
And determining each group of shells Wen Fangcha of the power supply according to the different shell temperature values in each group and the normalized quantity of each different shell temperature value by carrying out normalization processing on the quantity of each different shell temperature value. The comparison between the shell temperature values of each group is ensured through normalization, and the calculability of determining the shell temperature variance of each group through the normalized quantity of the shell temperature values of each different group is ensured.
In addition, when determining each set of shells Wen Fangcha of the power supply according to the different shell temperature values and the normalized numbers of the different shell temperature values in each set, for any set, determining the shell Wen Junzhi of any set as the product of the set formed by the different shell temperature values in any set and the set transpose formed by the normalized numbers of the different shell temperature values in any set; any set of shells Wen Fangcha is then determined based on any set of shells Wen Junzhi.
For example, for any one group, the shell Wen Junzhi T group,mean for any one group is determined from the different shell temperature values for any one group and the normalized number of each of the different shell temperature values. Determining any set of shells Wen Fangcha
Wherein, T group,tem is the temperature value of the temperature-measuring shell in the group, and q group is the number of different temperature values of the temperature-measuring shell in the group.
T group,mean is determined by the following formula:
Tgroup,mean＝E(Tgroup,tem)＝Tgroup·ngroup T。
Wherein, T group is a set formed by different shell temperature values in the group, and n group is a set formed by normalized numbers of different shell temperature values in the group.
The processing procedure of the case temperature data and the ambient temperature data of the acquisition method of the power supply case Wen Fangcha provided in the present embodiment is shown in fig. 3.
In step 101, the shell temperature data T i,j＝[Hi,1,Hi,2,…,Hi,m of the ith power supply and the ambient temperature data T env＝[h1,h2,…,hm are obtained.
In step 102, the influence of the ambient temperature data on the shell temperature data is removed to obtain processed shell temperature data Ti,process＝Ti,j-Tenv＝[Hi,1-h1,Hi,2-h2,…,Hi,m-1-hm-1,Hi,m-hm].
In step 103, the processed shell temperature data T i,process is grouped to obtain T group,seq＝[Ti,1,Ti,2,…,Ti,r, wherein T i,r is a set formed by the processed shell temperature data in the T group,P r is the total amount of shell temperature data processed in group r, and therefore,
In step 104, a number n group of different shell temperature values T group and different shell temperature values in each group are determined, wherein,Q r is the number of different shell temperature values in group r,
In step 105, each group of housings Wen Fangcha for the power source is determined based on T group and n group in each group.
Through the above steps, the obtained case Wen Junzhi T group,mean and case Wen Fangcha T group,var are shown in fig. 4. The change in shell temperature was quantitatively characterized based on the variance T group,var of the single shell temperature value T group within each group.
The method aims at the problems that the rail transit signal power supply system inevitably degenerates in the service process and the normal operation of the rear-end load equipment is affected. In the existing scheme, degradation characterization parameters such as output voltage or ripple voltage are adopted to evaluate the degradation degree of the power supply in real time so as to immediately take maintenance measures and improve the reliability and safety of the power supply.
At present, the degradation characteristic parameters of the power supply have the following problems:
1, the ripple voltage has high requirements on the precision and the sampling rate of sampling equipment, and the requirements on data storage and processing are also high. The ripple voltage of the power supply has a high frequency, and is usually as high as 10MHz to 100MHz, so that the sampling frequency of the ripple voltage monitoring device is required to be high. Moreover, the ripple voltage is smaller in amplitude, and the ripple voltage generally fluctuates between 1mV and 10mV, and the smaller ripple voltage amplitude has higher requirements on the sampling precision of the monitoring equipment. In addition, degradation characteristic parameters are usually monitored and processed in real time, and the data storage and data processing requirements are extremely high due to the large data volume of the ripple voltage. The sampling requirement and the output processing requirement greatly increase the acquisition cost and the processing cost of ripple voltage data, and are not beneficial to generalization and popularization.
And 2, the degradation evaluation accuracy of the output voltage to the power supply in actual service is low. Although, the output voltage may ideally be indicative of degradation of the power supply. However, the power supply in practical application has a feedback regulating circuit inside and has a larger difference from the power supply under ideal conditions. In the actual service process, the output voltage variation of the power supply is extremely small and even kept constant under the influence of the regulation and control of the internal feedback circuit. Therefore, the output voltage cannot accurately represent the degradation degree of the power supply in the actual service process.
However, in the power supply degradation process, the action of the internal feedback regulating circuit can promote the fluctuation degree of the shell temperature of the power supply to be increased, which is shown by the increase of the variance of the shell temperature. Accordingly, the housing Wen Fangcha may be used as a degradation characterizing parameter for the power supply. Since the shell Wen Fangcha is processed according to the shell temperature of the power source, a method for acquiring the shell temperature variance data in real time needs to be proposed. In addition, the shell temperature variance is affected by the external ambient temperature, so it is necessary to remove the influence of the external ambient temperature in the shell temperature variance data.
The power supply shell temperature variance obtained by the method for obtaining the power supply shell Wen Fangcha can be used as a degradation characteristic parameter of the power supply, so that the degradation state of the power supply is evaluated, and the safety and reliability of a rail transit signal system are ensured. The method can avoid the problems that the characteristic parameters have high requirements on monitoring equipment and high requirements on data storage and processing, and can also avoid the problem that the degradation characteristic parameters cannot accurately evaluate the power degradation degree in the service process, and can greatly improve the reliability and the safety of the rail transit signal power supply system.
According to the method provided by the embodiment, the sets of shells Wen Fangcha of the power supply are obtained after the influence of the environmental temperature data on the shell temperature data is removed according to the environmental temperature data of the rail transit signal power supply system and the shell temperature data of the power supply, so that the real-time and accurate acquisition of the shell temperature variance data is realized.
Based on the same inventive concept of an acquisition method of a power supply case Wen Fangcha, this embodiment provides an electronic device, which includes: memory, processor, and computer program.
Wherein the computer program is stored in the memory and configured to be executed by the processor to implement the method of retrieving the power supply housing Wen Fangcha as shown in fig. 1.
In particular, the method comprises the steps of,
In the service process, acquiring environmental temperature data of a rail transit signal power supply system and shell temperature data of a power supply in real time;
Removing the influence of the environmental temperature data on the shell temperature data to obtain processed shell temperature data;
grouping the processed shell temperature data;
determining the number of different shell temperature values in each group;
each set of shells Wen Fangcha of the power supply is determined according to the different shell temperature values and the number of the different shell temperature values in each set.
Optionally, grouping the processed shell temperature data includes:
And grouping the processed shell temperature data according to the acquisition time of the processed shell temperature data.
Optionally, determining the different shell temperature values and the number of different shell temperature values in each group includes:
For any one of the groups,
Sorting the shell temperature data processed in any group;
taking the shell temperature data with different ordered data values as any group of different shell temperature values;
The number of times each different shell temperature value occurs in the sequence is taken as the number of each different shell temperature value.
Optionally, in the service process, acquiring the environmental temperature data of the rail transit signal power supply system and the shell temperature data of the power supply in real time includes:
In the service process, acquiring environmental temperature data of a rail transit signal power supply system and shell temperature data of a power supply in real time through temperature monitoring equipment;
wherein the temperature monitoring device comprises a plurality of thermocouples; wherein the number of thermocouples is greater than the number of power sources;
the surface of each power supply is externally connected with at least one thermocouple, and the shell temperature data of each power supply are collected by the externally connected thermocouples;
the residual thermocouples are arranged in the rail transit signal power supply system, and the environmental temperature data are collected by the residual thermocouples.
Optionally, removing the influence of the ambient temperature data on the shell temperature data to obtain processed shell temperature data, including:
and taking the difference between the shell temperature data and the environment temperature data as the processed shell temperature data.
Optionally, determining the respective sets of shell temperature variances of the power supply according to the different shell temperature values and the number of the respective different shell temperature values in the respective sets includes:
normalizing the number of different shell temperature values in each group;
And determining each group of shells Wen Fangcha of the power supply according to different shell temperature values in each group and the normalized quantity of the different shell temperature values.
Optionally, normalizing the number of different shell temperature values in each group includes:
For the number of any shell temperature values of any group, the normalized number is the quotient of the number of any shell temperature values of any group and the sum of the numbers of all shell temperature values in any group.
Optionally, determining the shell temperature variance of each group of the power supply according to the different shell temperature values in each group and the normalized number of each different shell temperature value comprises:
For any one of the groups,
Determining the shell Wen Junzhi of any group as the product of the set of different shell temperature values in any group and the transpose of the set of normalized numbers of different shell temperature values in any group;
Any set of shells Wen Fangcha is determined based on any set of shells Wen Junzhi.
Different shell temperature values in each group and each non-formed set are determined.
According to the electronic equipment provided by the embodiment, the computer program is executed by the processor to remove the influence of the environmental temperature data on the shell temperature data according to the environmental temperature data of the rail transit signal power supply system and the shell temperature data of the power supply to obtain each group of shells Wen Fangcha of the power supply, so that the real-time and accurate acquisition of the shell temperature variance data is realized.
Based on the same inventive concept of a method of obtaining the power supply case Wen Fangcha, the present embodiment provides a computer-readable storage medium on which a computer program is stored.
Wherein the computer program is executed by the processor to implement the method of retrieving the power supply housing Wen Fangcha as shown in fig. 1.
In particular, the method comprises the steps of,
In the service process, acquiring environmental temperature data of a rail transit signal power supply system and shell temperature data of a power supply in real time;
Removing the influence of the environmental temperature data on the shell temperature data to obtain processed shell temperature data;
grouping the processed shell temperature data;
determining the number of different shell temperature values in each group;
each set of shells Wen Fangcha of the power supply is determined according to the different shell temperature values and the number of the different shell temperature values in each set.
Optionally, grouping the processed shell temperature data includes:
And grouping the processed shell temperature data according to the acquisition time of the processed shell temperature data.
Optionally, determining the different shell temperature values and the number of different shell temperature values in each group includes:
For any one of the groups,
Sorting the shell temperature data processed in any group;
taking the shell temperature data with different ordered data values as any group of different shell temperature values;
The number of times each different shell temperature value occurs in the sequence is taken as the number of each different shell temperature value.
Optionally, in the service process, acquiring the environmental temperature data of the rail transit signal power supply system and the shell temperature data of the power supply in real time includes:
In the service process, acquiring environmental temperature data of a rail transit signal power supply system and shell temperature data of a power supply in real time through temperature monitoring equipment;
wherein the temperature monitoring device comprises a plurality of thermocouples; wherein the number of thermocouples is greater than the number of power sources;
the surface of each power supply is externally connected with at least one thermocouple, and the shell temperature data of each power supply are collected by the externally connected thermocouples;
the residual thermocouples are arranged in the rail transit signal power supply system, and the environmental temperature data are collected by the residual thermocouples.
Optionally, removing the influence of the ambient temperature data on the shell temperature data to obtain processed shell temperature data, including:
and taking the difference between the shell temperature data and the environment temperature data as the processed shell temperature data.
Optionally, determining the respective sets of shell temperature variances of the power supply according to the different shell temperature values and the number of the respective different shell temperature values in the respective sets includes:
normalizing the number of different shell temperature values in each group;
And determining each group of shells Wen Fangcha of the power supply according to different shell temperature values in each group and the normalized quantity of the different shell temperature values.
Optionally, normalizing the number of different shell temperature values in each group includes:
For the number of any shell temperature values of any group, the normalized number is the quotient of the number of any shell temperature values of any group and the sum of the numbers of all shell temperature values in any group.
Optionally, determining the shell temperature variance of each group of the power supply according to the different shell temperature values in each group and the normalized number of each different shell temperature value comprises:
For any one of the groups,
Determining the shell Wen Junzhi of any group as the product of the set of different shell temperature values in any group and the transpose of the set of normalized numbers of different shell temperature values in any group;
Any set of shells Wen Fangcha is determined based on any set of shells Wen Junzhi.
The computer readable storage medium provided in this embodiment has a computer program executed by a processor to remove the influence of the environmental temperature data on the shell temperature data according to the environmental temperature data of the rail transit signal power supply system and the shell temperature data of the power supply, and then obtain each group of shells Wen Fangcha of the power supply, so as to achieve real-time and accurate acquisition of the shell temperature variance data.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein. The scheme in the embodiment of the application can be realized by adopting various computer languages, such as object-oriented programming language Java, an transliteration script language JavaScript and the like.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (6)
1. A method for obtaining a power supply shell temperature variance, the method comprising:
In the service process, acquiring environmental temperature data of a rail transit signal power supply system and shell temperature data of a power supply in real time;
Removing the influence of the environmental temperature data on the shell temperature data to obtain processed shell temperature data;
Grouping the processed shell temperature data according to the acquisition time of the processed shell temperature data;
determining the number of different shell temperature values in each group;
determining each group of shells Wen Fangcha of the power supply according to different shell temperature values in each group and the number of the different shell temperature values;
determining the different shell temperature values and the number of different shell temperature values in each group comprises:
For any one of the groups,
Sorting the shell temperature data processed in any group;
Taking the shell temperature data with different ordered data values as different shell temperature values of any group;
The number of times of each different shell temperature value in the sorting is used as the number of each different shell temperature value;
Determining each set of shell temperature variances of the power supply according to different shell temperature values and the number of the different shell temperature values in each set, comprising:
normalizing the number of different shell temperature values in each group;
determining each group of shells Wen Fangcha of the power supply according to different shell temperature values in each group and the normalized quantity of each different shell temperature value;
Normalizing the number of different shell temperature values in each group, including:
For the number of any shell temperature values of any one group, the normalized number is the quotient of the number of any shell temperature values of the any one group and the sum of the numbers of all shell temperature values in the any one group.
2. The method of claim 1, wherein the acquiring, in real time, the ambient temperature data of the rail transit signal power supply system and the shell temperature data of the power supply during service comprises:
In the service process, acquiring environmental temperature data of a rail transit signal power supply system and shell temperature data of a power supply in real time through temperature monitoring equipment;
Wherein the temperature monitoring device comprises a plurality of thermocouples; wherein the number of thermocouples is greater than the number of power sources;
the surface of each power supply is externally connected with at least one thermocouple, and the shell temperature data of each power supply are collected by the externally connected thermocouples;
The residual thermocouple is arranged in the rail transit signal power supply system, and the environmental temperature data are collected by the residual thermocouple.
3. The method of claim 2, wherein said removing the effect of the ambient temperature data on the shell temperature data results in processed shell temperature data, comprising:
and taking the difference between the shell temperature data and the environment temperature data as processed shell temperature data.
4. A method according to claim 3, wherein said determining each set of shell temperature variances for the power supply based on the different shell temperature values in each set and the normalized number of different shell temperature values comprises:
For any one of the groups,
Determining the shell temperature average value of any group as the product of a set formed by different shell temperature values in any group and a set transpose formed by the normalized quantity of different shell temperature values in any group;
the any set of shells Wen Fangcha is determined based on the shell temperature average of the any set.
5. An electronic device, comprising:
A memory;
A processor; and
A computer program;
Wherein the computer program is stored in the memory and configured to be executed by the processor to implement the method of any of claims 1-4.
6. A computer-readable storage medium, characterized in that a computer program is stored thereon; the computer program being executed by a processor to implement the method of any of claims 1-4.
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