CN115061061B

CN115061061B - Method and device for prejudging abnormal state of wireless station switch power supply

Info

Publication number: CN115061061B
Application number: CN202210989711.0A
Authority: CN
Inventors: 王为民; 杨宏; 王铁牛; 李娟�; 余冰洁; 金梦; 王翠云; 陈昌谋
Original assignee: Yunnan Branch China Tower Co ltd
Current assignee: Yunnan Branch China Tower Co ltd
Priority date: 2022-08-18
Filing date: 2022-08-18
Publication date: 2022-11-01
Anticipated expiration: 2042-08-18
Also published as: CN115061061A

Abstract

The application discloses an abnormal state prejudging method and device for a wireless station switch power supply, which comprises the following steps: step S1: collecting basic data of a switching power supply of a wireless station; step S2: after the system sends orders to workers, the workers respectively detect each module in the switching power supply of the wireless station according to the pre-judged abnormal state problem and the equipment to be detected manually, and determine the abnormal state module. By the method and the device, the abnormal state of the switching power supply can be analyzed, prejudged and reported, operation and maintenance personnel can be helped to find, verify and solve the possible abnormal state in time, abnormal state points and related reasons are analyzed and classified, and the operation and maintenance personnel can be helped to quickly troubleshoot and solve problems. Make up the not enough of switching power supply self alarm module existence, promoted the guarantee and the operation and maintenance ability of wireless website.

Description

Method and device for prejudging abnormal state of wireless station switch power supply

Technical Field

The application relates to the technical field of switching power supplies of wireless stations, in particular to an abnormal state prejudging method and device for the switching power supplies of the wireless stations.

Background

The switching power supply is one of the important components of the power supply link of the switching power supply of the wireless station, and has the function of converting one-level voltage into voltage or current required by an equipment end through different forms of architectures, so as to provide basic power guarantee for various equipment of the switching power supply of the wireless station. If the switching power supply is in an abnormal state, although the abnormal state does not reach the fault degree, the normal operation of the wireless station is influenced, and when the abnormal state is not found in time for a long time, the fault is developed, so that the power supply and the normal operation of various devices of the switching power supply of the wireless station are seriously influenced. Therefore, relevant fault warning modules of the switching power supply are found and solved in time, normal work of the station is guaranteed, and the method has important significance for improving communication guarantee capacity.

The existing switching power supply equipment and system are provided with a fault alarm module, and when the system is abnormal, the module can automatically report an alarm. However, in an actual operation environment, the switching power supply device is abnormal and does not report an alarm, so that the abnormal state is not reported.

The main reasons for failure alarm failure are as follows:

1. the fault alarm module has a fault and cannot play monitoring and alarming functions;

2. the installation condition of a field circuit is complex, partial module equipment cannot be correctly connected into a fault alarm module, and a monitoring blind area exists;

3. the data acquired by the monitoring acquisition module is inconsistent with the actual data, and the data is abnormal, so that the fault alarm module cannot be triggered to report;

4. the alarm threshold value or alarm condition of the fault alarm module is set strictly, the monitoring data index value cannot reach the alarm level or condition of the fault alarm module, but the equipment cannot actually meet the normal working condition operation interval, and potential abnormal state risks exist.

Due to the reasons, abnormal states cannot be reported in time, abnormal state sites cannot normally run, normal use of surrounding users is affected, in practice, only after user feedback or manual inspection discovery can be waited, a system initiates a manual dispatching process, and operation conditions of equipment can be finally determined only by manually carrying out on-site inspection on abnormal state equipment. This causes the abnormal state device to be difficult to be found in time, reduces the abnormal state troubleshooting efficiency, and affects the normal operation of the user equipment.

When the abnormal state is checked in the manual station after the order is dispatched, because part of the switching power supplies are still in the running state, only part of abnormal data exists, and the checking efficiency and the checking accuracy are lower only by depending on the on-site manual work to check a plurality of parameters.

Disclosure of Invention

The application provides a method and a device for prejudging an abnormal state of a wireless station switching power supply, which are used for solving the technical problem that the abnormal state is not reported in time due to the fact that a fault alarm module for the switching power supply of the wireless station cannot report the abnormal state of the switching power supply in time in the prior art.

An abnormal state prejudging method for a wireless station switch power supply comprises the following steps:

step S1: acquiring basic data of a switching power supply of a wireless station, storing the acquired data into a basic data table T1, processing and judging each item of data in the basic data table T1 according to an abnormal state prejudgment configuration table, and outputting a prejudgment abnormal state problem and equipment to be manually detected;

step S2: after the system sends orders to workers, the workers respectively detect each module in a switching power supply of a wireless station according to a pre-judged abnormal state problem and equipment to be detected manually, and determine an abnormal state module;

the basic data are: the method comprises the following steps that A phase voltage values, B phase voltage values, C phase voltage values, direct current output voltage values, direct current load total current values, rectifier module quantity values, rectifier module current values, storage battery pack current values and storage battery pack voltage values of three-phase alternating current are obtained;

the abnormal state prejudgment configuration table comprises:

1) When the alternating current A, B, C phases have no value and other items have values, the problem of abnormal state is judged in advance to be that the alternating current voltage acquisition fails, and the equipment to be manually detected is a switching power supply;

2) When the direct current output voltage has no value and other items have values, the problem of the abnormal state is judged in advance to be that the suspected acquisition of the direct current output voltage fails, and the equipment to be manually detected is a switching power supply;

3) When the total current of the direct current load has no value and other items have values, the problem of the abnormal state is judged in advance to be that the suspected collection of the total current of the direct current load fails, and the manual detection equipment is a switching power supply;

4) The number result of the obtained rectifier modules and the current value of the rectifier modules are all zero values, the zero values refer to null or 0, and when other items have values, the problem of the abnormal state is judged in advance to be that the current of the rectifier modules is suspected to be collected unsuccessfully, and the equipment to be manually detected is a switching power supply;

5) When the current value of the storage battery pack is empty, the problem of the abnormal state is judged in advance to be suspected acquisition failure of the current of the storage battery pack, and the equipment to be manually detected is a switching power supply, a storage battery sensor and a storage battery;

6) When the alternating voltage is not empty and the range is 10-159V or more than 250V, prejudging that the abnormal state problem is that the alternating voltage range is suspected to be out of limit, and manually detecting equipment is a power grid, a switching power supply and an FSU;

7) When the direct current output voltage range is out of 22-30V range or 53-57V range and no power failure occurs within 24 hours, prejudging that the abnormal state problem is suspected to be out of limit of the direct current output voltage range, and waiting for manual detection equipment to be a switching power supply and an FSU;

8) When the voltage I of the direct current output voltage-the voltage I of the storage battery pack is larger than 1V and the voltage of the direct current output voltage and the voltage of the storage battery pack have effective values, the problem of the abnormal state is judged in advance that the voltage difference between the switching power supply and the storage battery is suspected to be overlarge, and the equipment to be manually detected is a storage battery sensor, an FSU (self-regulating unit) and the switching power supply;

9) When the voltage of the storage battery pack 1-the voltage of the storage battery pack 2 is greater than 0.5V, the problem of the abnormal state is judged in advance that the pressure difference between the storage battery packs is suspected to be overlarge, and the equipment to be detected manually is a storage battery sensor and a switching power supply

10 When the total current range of the direct current load is out of 3-200A, the problem of abnormal state is judged in advance to be suspected overrun of the total current of the direct current load, and the equipment to be manually detected is a switching power supply and an FSU;

11 When the direct current load current (the sum of the current values of the rectifier modules and the sum of the current values of the storage battery pack)) is larger than 2A, the problem of the abnormal state is judged in advance that the suspected difference between the direct current load current and the sum of the current values of the rectifier modules is large, and the equipment to be manually detected is a switching power supply;

12 When the deviation rate of the direct current load current is greater than 40%, the difference value between the maximum value of the direct current load current and the minimum value of the direct current load current is greater than 6A, and the number of samples is greater than 10, prejudging that the abnormal state problem is that the direct current load current fluctuation is suspected to be large, and using a device to be manually detected as a switching power supply;

13 The AC voltage A is less than 10V, the AC voltage B is less than 10V, the AC voltage C is less than 10V, the DC output voltage is more than 20V, when no power failure alarm/service quit alarm/power generation alarm exists within 12 hours, the problem of the abnormal state is judged in advance to be suspected to be abnormal by the AC sampling unit, and the equipment to be manually detected is an FSU and a switching power supply.

Preferably, step S1 further includes: outputting and pre-judging the reason of the abnormal state:

1) When the phase voltage value of A, the phase voltage value of B and the phase voltage value of C of the three-phase alternating current have no values and other items have values, the reason of the abnormal state is judged in advance to be a monitoring unit and an alternating current sampling plate;

2) When the direct current output voltage has no value and other items have values, the reason of the abnormal state is judged in advance to be a monitoring unit and a direct current sampling plate;

3) When the total current of the direct current load has no value and other items have values, the reason of the abnormal state is judged in advance to be a monitoring unit and a direct current sampling plate;

4) The number result of the obtained rectifier modules and the current value of the rectifier modules are all zero values, the zero values refer to null or 0, and when other items have values, the reasons of abnormal states are judged in advance to be the monitoring unit, the direct current sampling plate and the rectifier modules;

5) When the current value of the storage battery pack is empty, the reasons of the abnormal state are judged in advance to be a monitoring unit, a direct current sampling plate, a storage battery sensor and a storage battery;

6) When the alternating voltage is not empty and the range is 10-159V or more than 250V, the reasons of abnormal states are pre-judged to be power introduction, a monitoring unit, an alternating current sampling plate and protocol matching;

7) When the range of the direct current output voltage is out of the range of 22-30V or out of the range of 53-57V, and the power failure is not generated within 24 hours, prejudging the reason of the abnormal state as the matching of a monitoring unit, a direct current sampling plate and a protocol;

8) When the voltage of the direct current output voltage-the voltage of the storage battery pack is greater than 1V and the voltage of the direct current output voltage and the voltage of the storage battery pack have effective values, the reasons of abnormal states are judged in advance to be virtual connection of a monitoring line of the storage battery, protocol matching and fastening of a connecting line of the storage battery;

9) When the voltage of the storage battery pack 1-the voltage of the storage battery pack 2 is larger than 0.5V, the reason of the abnormal state is judged in advance to be the virtual connection of a monitoring line of the storage battery and the fastening of a connecting line of the storage battery;

10 When the total current range of the direct current load is out of 3-200A, the reason of the abnormal state is prejudged to be a monitoring unit, a direct current sampling plate and protocol matching;

11 When the direct current load current (the sum of the current values of the rectifier module and the storage battery pack) is larger than 2A, the reasons of the abnormal state are judged in advance to be the rectifier module, the monitoring unit and the direct current sampling plate;

12 When the deviation rate of the direct current load current is greater than 40%, the difference value between the maximum value of the direct current load current and the minimum value of the direct current load current is greater than 6A, and the number of samples is greater than 10, prejudging the reasons of the abnormal state to be a monitoring unit, a direct current sampling plate and a rectifying module;

13 Ac voltage a <10V, ac voltage B <10V, ac voltage C <10V, dc output voltage >20v, and when no power failure alarm/service withdrawal alarm/power generation alarm is present within 12 hours, it is predicted that the cause of the abnormal state is power failure/service withdrawal non-alarm, protocol matching, monitoring unit, and ac sampling board.

Preferably, the step S1 further includes: outputting a pre-judging abnormal state level:

1) When the A phase voltage value, the B phase voltage value and the C phase voltage value of the three-phase alternating current have no values and other items have values, the abnormal state level 2 is judged in advance;

2) When the direct current output voltage has no value and other items have values, judging the abnormal state level 1 in advance;

3) When the total current of the direct current load has no value and other items have values, judging the abnormal state level 1 in advance;

4) The number result of the obtained rectifier modules and the current value of the rectifier modules are both zero values, the zero values mean that the current values are all null or 0, and when other items have values, the abnormal state level is judged to be 1;

5) When the current values of the storage battery pack are all empty, the level of the abnormal state is judged to be 2 in advance;

6) When the alternating voltage is not null and the range is 10-159V or more than 250V, the level of the abnormal state is judged to be 2;

7) The range of the direct current output voltage is out of the range of 22-30V or out of the range of 53-57V, and meanwhile, when power failure does not occur within 24 hours, the abnormal state level is judged to be 1;

8) When the voltage I of the direct current output voltage-the voltage I of the storage battery pack is larger than 1V and the direct current output voltage and the voltage of the storage battery pack have effective values, the abnormal state level is judged to be 2 in advance;

9) When the voltage of the storage battery pack 1-the voltage of the storage battery pack 2 is larger than 0.5V, the level of the abnormal state is judged to be 2;

10 When the total current range of the direct current load is out of 3-200A, the abnormal state level is judged to be 1 in advance;

11 When the direct current load current (the sum of the current values of the rectifier modules and the sum of the current values of the storage battery pack)) is larger than 2A, the level of the abnormal state is judged to be 2;

12 When the deviation rate of the direct current load current is larger than 40%, the difference value between the maximum value of the direct current load current and the minimum value of the direct current load current is larger than 6A, and the number of samples is larger than 10, the level of the abnormal state is judged to be 1;

13 A phase voltage of <10V for AC A, a phase voltage of <10V for AC B, a phase voltage of <10V for AC C, and a phase voltage of >20V for DC output, and when no power failure alarm/service quit alarm/power generation alarm is given in 12 hours, it is predicted that the abnormal state level is 2.

Preferably, the step S1 further includes: outputting a classification result of the pre-judged abnormal state:

1) When the A phase voltage value, the B phase voltage value and the C phase voltage value of the three-phase alternating current have no value and other items have values, the abnormal state is judged in advance and classified as monitoring acquisition abnormality;

2) When the direct current output voltage has no value and other items have values, judging abnormal states in advance, classifying, monitoring and acquiring the abnormality;

3) When the total current of the direct current load has no value and other items have values, judging abnormal states in advance, classifying, monitoring and acquiring the abnormality;

4) The number result of the obtained rectifier modules and the current value of the rectifier modules are all zero values, the zero values refer to null or 0, and when other items have values, the abnormal state is judged in advance and classified as monitoring acquisition abnormity;

5) When the current value of the storage battery pack is empty, judging the abnormal state in advance and classifying the abnormal state into monitoring acquisition abnormity;

6) When the alternating voltage is not empty and the range is 10-159V or more than 250V, the abnormal state is judged to be abnormal;

7) When the range of the direct current output voltage is out of the range of 22-30V or out of the range of 53-57V, and the power failure is not generated within 24 hours, the abnormal state is judged in advance and classified as the direct current voltage abnormality;

8) When the voltage I of the direct current output voltage-the voltage I of the storage battery pack is larger than 1V and the direct current output voltage and the voltage of the storage battery pack have effective values, the abnormal state is judged in advance and classified as the direct current voltage abnormality;

9) When the voltage of the storage battery pack 1-the voltage of the storage battery pack 2 is larger than 0.5V, the abnormal state is judged in advance and classified as the abnormal direct-current voltage;

10 When the total current range of the direct current load is out of 3-200A, the abnormal state is judged in advance and classified as load current abnormality;

11 When the direct current load current (the sum of the current values of the rectifier modules and the sum of the current values of the storage battery pack)) is larger than 2A, the abnormal state is judged in advance and classified as load current abnormality;

12 When the deviation rate of the direct current load current is larger than 40%, the difference value between the maximum value of the direct current load current and the minimum value of the direct current load current is larger than 6A, and the sample number is larger than 10, the abnormal state is judged in advance and classified as load current abnormality;

13 Has an AC A phase voltage <10V, an AC B phase voltage <10V, an AC C phase voltage <10V, a DC output voltage >20V, and a power failure alarm/service quit alarm/power generation alarm is not given for 12 hours, and the predetermined abnormal state is classified as an equipment component abnormality.

Preferably, the data processing in step S1 includes the steps of:

step S11: the sum of the current values of the rectification modules is the accumulated sum of the current values of all the rectification modules in the switching power supply of the same wireless station;

step S12: the sum of the current values of the storage battery packs is the accumulated sum of the current values of the storage battery packs in the switching power supply of the same wireless station.

Preferably, the data judgment in the step S1 includes the following steps:

step S14: storing the basic data and the basic data processing result into a process table T3, judging whether each data in the process table T3 accords with the basic data processing judgment condition of an abnormal state prejudgment configuration table one by one, and if so, outputting a prejudgment abnormal state problem, equipment to be manually detected, a prejudgment abnormal state reason, a prejudgment abnormal state grade and a prejudgment abnormal state classification;

step S15: and if the judgment result is that the basic data processing judgment condition is not met, outputting a result that the switching power supply of the wireless station normally operates.

Preferably, the method comprises the following steps:

and step S3: after acquiring abnormal state equipment and reasons of the wireless station switching power supply in a manual site, storing the obtained result in a feedback table T5 in a one-to-one correspondence relationship of the abnormal state equipment and the reasons;

and step S4: and updating the abnormal state prejudgment configuration table according to the feedback table T5.

Another aspect of the present application further provides a device for predicting abnormal state of a switching power supply of the switching power supply, including:

the data acquisition and processing module: the system comprises a base data table T1, a pre-judging configuration table and equipment to be manually detected, wherein the base data table T1 is used for storing the acquired data of the switching power supply of a wireless station, processing and judging various data in the base data table T1 according to the abnormal state pre-judging configuration table, and outputting pre-judging abnormal state problems and the equipment to be manually detected;

a prejudgment result output module: after the system sends orders to workers, the workers respectively detect each module in a switching power supply of a wireless station according to the pre-judged abnormal state problem and equipment to be detected manually to determine an abnormal state module;

the abnormal state prejudgment configuration table comprises:

1) When the phase voltage value A, the phase voltage value B and the phase voltage value C of the three-phase alternating current have no value and other items have values, the problem of abnormal state is pre-judged to be that alternating current voltage collection fails, and the equipment to be manually detected is a switching power supply;

12 When the deviation rate of the direct current load current is larger than 40%, the difference value between the maximum value of the direct current load current and the minimum value of the direct current load current is larger than 6A, and the number of samples is larger than 10, prejudging that the abnormal state problem is that the direct current load current fluctuation is suspected to be larger, and using a manual detection device as a switching power supply;

Preferably, the data acquisition and processing module comprises:

a data processing module: the basic data processing system is used for storing basic data and basic data processing results into a process table T3, judging whether each data in the process table T3 accords with the basic data processing judgment condition of an abnormal state prejudgment configuration table one by one, and if so, outputting prejudgment abnormal state problems, equipment to be manually detected, prejudgment abnormal state reasons, prejudgment abnormal state grades and prejudgment abnormal state classifications;

a normal result output module: and if the judgment result is that the basic data processing judgment condition is not met, outputting a result that the switching power supply of the wireless station is operated normally.

Preferably, the method comprises the following steps: the field abnormal state acquisition module is used for manually acquiring abnormal state equipment and reasons of the wireless station switching power supply on the field and storing the acquired result in a feedback table T5 in a one-to-one correspondence relationship of the abnormal state equipment and the reasons;

a feedback module: and the system is used for updating the abnormal state prejudgment configuration table according to the feedback table T5.

The beneficial effects that this application can produce include:

1) The abnormal state prejudging method and the device for the wireless station switch power supply can accurately analyze, prejudge and report the abnormal state of the switch power supply, wherein the abnormal state warning module on the wireless station cannot work normally and is abnormal, the prejudging result can effectively help daily operation and maintenance personnel to find, verify and solve the abnormal state possibly existing in the switch power supply in time, and the operation and maintenance personnel can be assisted to quickly determine the abnormal state switch power supply according to the classification of the abnormal state points and related reasons, so that the operation and maintenance personnel can accurately position the reasons and modules of the abnormal state on an operation site, and the abnormal state investigation and solution efficiency of the switch power supply is improved. The problem that the abnormal state of the switching power supply cannot be found in time under the condition that the alarm module of the switching power supply fails to report the abnormal state is solved, and the guarantee, operation and maintenance capacity of the switching power supply of a wireless station is improved. After the method is adopted to ensure the normal working condition of the switching power supply, the occurrence probability of the overdischarge problem of the storage battery caused by the abnormal state of the switching power supply can be reduced, and the service life of the storage battery used by the wireless station is prolonged.

2) According to the abnormal state pre-judging method and device for the wireless station switching power supply, after the operation and maintenance personnel carry out field inspection on the wireless station switching power supply according to the pre-judging result, the feedback table T5 is generated, and the feedback result is applied to updating the abnormal state pre-judging configuration table, so that the pre-judging accuracy of the abnormal state pre-judging configuration table is further improved.

Drawings

Fig. 1 is a schematic flow chart of an abnormal state pre-determination method for a wireless station switching power supply according to the present application;

fig. 2 is a schematic connection diagram of a module of the device for predicting an abnormal state of a wireless station switching power supply according to the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Technical features which are not used for solving the technical problems of the present application are all arranged or installed according to a common method in the prior art, and are not described herein in a repeated manner.

Referring to fig. 1, the present application provides an abnormal state prediction method for a wireless station switching power supply, including the following steps:

the abnormal state prejudgment configuration table comprises:

1) When the phase voltage value of A, the phase voltage value of B and the phase voltage value of C of the three-phase alternating current have no values and other items have values, the problem of the abnormal state is judged in advance to be that the alternating current voltage acquisition fails, and the equipment to be manually detected is a switching power supply;

9) When the voltage of the storage battery pack 1-the voltage of the storage battery pack 2 is more than 0.5V, the problem of the abnormal state is judged in advance that the pressure difference between the storage battery packs is suspected to be overlarge, and the equipment to be detected manually is a storage battery sensor and a switching power supply

11 When the direct current load current (the sum of the current values of the rectifier modules and the sum of the current values of the storage battery packs)) is larger than 2A, the problem of abnormal state is pre-judged, namely the suspected difference between the direct current load current and the sum of the current of the rectifier modules is large, and the equipment to be manually detected is a switching power supply;

By adopting the method steps, the abnormal state condition of the switching power supply of each wireless station which is not reported to be in an abnormal state through the abnormal state alarm module can be found in time, the comprehensive and effective monitoring on the operation of the switching power supply of the wireless station is realized, the problem that the abnormal state alarm module cannot alarm in time when the switching power supply of the existing wireless station is in operation is effectively solved, and the operation monitoring reliability of the switching power supply of each wireless station is improved; meanwhile, the specific module can be manually detected according to the output prejudgment result, so that the accuracy and the efficiency of manual detection of the station-going situation are improved, and the occurrence proportion of the invalid station-going situation is reduced.

The method aims at predicting and analyzing the following abnormal state problems existing in the wireless station: suspected collection failure of the alternating voltage; suspected acquisition failure of the direct current output voltage; the suspected collection of the total current of the direct current load fails; the current of the rectifier module is suspected to fail to be collected; the suspected collection of the current of the storage battery pack fails; suspected overrun of the alternating voltage range; the direct current output voltage range is suspected to be out of limit; the voltage difference between the switching power supply and the storage battery is suspected to be overlarge; the pressure difference between the storage battery packs is suspected to be overlarge; the total current of the direct current load is suspected to exceed the limit; the sum of the direct current load current and the current of the rectifier module is suspected to have a large difference; the direct current load current fluctuation is suspected to be large; the AC sampling unit is suspected to be abnormal.

According to the method, through the acquisition of each item of basic data of each module used on the wireless station, the abnormal state of the switching power supply which cannot be reported in the abnormal state can be accurately judged, the workload of manual one-by-one troubleshooting is reduced, and the troubleshooting efficiency is improved.

4) The number result of the obtained rectifier modules and the current value of the rectifier modules are all zero values, the zero values mean that the current values are all empty or 0, and when other items have values, the reasons of abnormal states are judged in advance to be a monitoring unit, a direct current sampling plate and the rectifier modules;

6) When the alternating voltage is not empty and the range is 10-159V or more than 250V, the reasons of abnormal states are pre-judged to be power introduction, a monitoring unit, an alternating current sampling board and protocol matching;

By output and prejudging the reason of the abnormal state, when the switching power supply of the wireless station is overhauled manually, other possible abnormal state modules can be analyzed on site according to specific reasons, and the overhauling efficiency and the overhauling accuracy are improved.

Preferably, step S1 further includes: outputting a pre-judging abnormal state level:

4) The obtained number result of the rectifier modules and the current value of the rectifier modules are all zero values, the zero values mean that all the values are null or 0, and when other items have values, the abnormal state level is judged to be 1 in advance;

7) When the range of the direct current output voltage is out of the range of 22-30V or out of the range of 53-57V, and power failure does not occur within 24 hours, the abnormal state level is judged to be 1 in advance;

8) If the voltage of the direct current output voltage-the storage battery pack is greater than 1V and the direct current output voltage and the storage battery pack have effective values, the level of the abnormal state is judged to be 2 in advance;

12 When the deviation rate of the direct current load current is larger than 40%, the difference value between the maximum value of the direct current load current and the minimum value of the direct current load current is larger than 6A, and the number of samples is larger than 10, the level of the abnormal state is judged to be 1 in advance;

And the abnormal state grade is used for grading the severity degree of the abnormal state, assisting a front-line operation and maintenance worker to judge the severity degree of the abnormal state on site according to the output abnormal state grade description, and planning the processing time arrangement of a plurality of abnormal states according to the judgment result, wherein the higher the abnormal state grade is, the more the abnormal state problem needs to be processed preferentially.

Preferably, step S1 further includes: outputting a pre-judging abnormal state classification result:

1) When the phase voltage value of the three-phase alternating current A, the phase voltage value of the three-phase alternating current B and the phase voltage value of the three-phase alternating current C have no value and other items have values, the abnormal state is judged in advance and classified as monitoring acquisition abnormity;

4) The number result of the obtained rectifier modules and the current value of the rectifier modules are all zero values, the zero values mean that the current values are all null or 0, and when other items have values, the abnormal state is judged in advance and classified as monitoring acquisition abnormity;

5) When the current values of the storage battery pack are empty, judging the abnormal state in advance and classifying the abnormal state into monitoring acquisition abnormity;

7) When the range of the direct current output voltage is out of the range of 22-30V or out of the range of 53-57V, and power failure does not occur within 24 hours, the abnormal state is judged in advance and classified as direct current voltage abnormality;

8) When the direct current output voltage-storage battery pack voltage is larger than 1V and the direct current output voltage and the storage battery pack voltage have effective values, the abnormal state is judged in advance and classified as the direct current voltage abnormality;

12 When the deviation rate of the direct current load current is larger than 40%, the difference value between the maximum value of the direct current load current and the minimum value of the direct current load current is larger than 6A, and the number of samples is larger than 10, the abnormal state is judged in advance and classified as load current abnormality;

And outputting the abnormal state classification result, and performing analysis pre-judgment and classification for indicating the abnormal state so as to assist a front-line operation and maintenance worker to quickly locate the abnormal state reason and the abnormal state module.

Preferably, the data processing in step S1 includes the steps of:

In a specific embodiment, the data processing in step S1 includes the following steps: step S13: dc load current deviation ratio = deviation ratio calculated based on the dc current stabilization load.

Off rate = number of deviations/number of samples

And (3) judging the deviation frequency: the deviation range of the measured value and the stable value exceeds 10 percent, namely: measured value-stable value |/stable value >0.1

Measured value: total current of DC load

(for a calculation method of the stable value, see CN2022105663091 for a calculation method for obtaining the stable load E).

Preferably, the data judgment in step S1 includes the following steps:

step S15: and if the judgment result is that the basic data processing judgment condition is not met, outputting a result that the switching power supply of the wireless station is operated normally.

Specifically, the abnormal state prejudgment configuration table is as follows:

preferably, the method comprises the following steps:

By adopting the method, the abnormal state pre-judgment configuration table can be revised according to the actual situation, so that the accuracy of the pre-judgment result of the abnormal state pre-judgment configuration table is effectively improved.

Referring to fig. 2, another aspect of the present application also provides an apparatus comprising:

the data acquisition and processing module 1: the system comprises a base data table T1, a pre-judging configuration table and equipment to be manually detected, wherein the base data table T1 is used for storing the acquired data of the switching power supply of a wireless station, processing and judging various data in the base data table T1 according to the abnormal state pre-judging configuration table, and outputting pre-judging abnormal state problems and the equipment to be manually detected;

the pre-judgment result output module 2: after the system sends orders to workers, the workers respectively detect each module in a switching power supply of a wireless station according to the pre-judged abnormal state problem and equipment to be detected manually to determine an abnormal state module;

the abnormal state prejudgment configuration table comprises:

2) When the direct-current output voltage has no value and other items have values, the abnormal state problem is judged in advance to be suspected acquisition failure of the direct-current output voltage, and the manual detection equipment is a switching power supply;

6) When the alternating voltage is not empty and the range is 10-159V or more than 250V, the problem of abnormal state is judged to be suspected overrun of the alternating voltage range in advance, and the equipment to be manually detected is a power grid, a switching power supply and an FSU;

13 Alternating current A phase voltage is less than 10V, alternating current B phase voltage is less than 10V, alternating current C phase voltage is less than 10V, direct current output voltage is larger than 20V, when power failure alarm/service quitting alarm/power generation alarm does not exist in 12 hours, the problem of abnormal state is judged in advance to be suspected to be abnormal in the alternating current sampling unit, and equipment to be detected manually is an FSU and a switching power supply.

Preferably, the data acquisition and processing module 1 comprises:

Adopt the device can accurately in time acquire switching power supply's operational aspect on the wireless website, even meet the unable normal condition of working of abnormal condition alarm module, also can in time acquire abnormal conditions, improve artifical group list maintenance efficiency.

Preferably, the method comprises the following steps: the field abnormal state acquisition module 3 is used for manually acquiring abnormal state equipment and reasons of the wireless station switching power supply on the field and storing the acquired result in the feedback table T5 in a one-to-one correspondence relationship between the abnormal state equipment and the reasons;

the feedback module 4: and the system is used for updating the abnormal state prejudgment configuration table according to the feedback table T5.

By adopting the device, the abnormal state pre-judgment configuration table can be revised in time according to the actual condition, so that the accuracy of the pre-judgment result of the abnormal state pre-judgment configuration table is effectively improved.

Examples

Example 1

Acquiring and processing basic data of a switching power supply of 10 running wireless stations according to the following steps, and outputting a prejudgment result:

the method comprises the following steps: acquiring basic data, namely acquiring the basic data of each parameter in a classified manner, storing the acquired data into a basic data table T1, wherein the basic data to be acquired comprises the following steps:

alternating current A, B, C phase voltage, direct current output voltage, direct current load total current, the number of rectifier modules, rectifier module current, storage battery pack current and storage battery pack voltage;

step two: index calculation, namely calculating indexes needed to be used in the pre-judgment rule, and storing the calculated result into an index base table T2;

s21: based on the basic data table T1, indexes which do not need secondary calculation and can be directly used are directly read and stored into an index base table T2. The method comprises the following indexes:

s22: based on the basic data table T1, the indexes needing secondary calculation are calculated according to rules, and calculation results are put into an index table T2 and comprise the following indexes:

sum of current values of rectification modules: under the same station, summing current values of all the rectifier modules

Sum of battery pack current values: under the same station, summing current values of all storage battery packs

Dc load current deviation ratio: deviation rate calculated based on direct current stabilized load

Deviation ratio = number of deviations/number of samples

And (3) judging the deviation frequency: the deviation range of the measured value and the stable value exceeds 10 percent, namely: measured value-stable value/stable value >0.1

Measured value: total current of DC load

(for a calculation method of the stable value, see CN2022105663091 for a calculation method for obtaining the stable load E). Step three: reading an abnormal state prejudgment rule configuration table, and calculating and judging the rules in the configuration table one by one, wherein the rule configuration table is as follows:

s31: and reading the rules in the rule configuration table one by one, extracting indexes required by the rules from the index base table T2, calculating, and storing the calculation result into a calculation process table T3.

S32: based on the calculation result of S31, abnormal data meeting the prejudgment rule are screened and stored in a calculation result table T4

Step four: and summarizing and grading the data in the result table T4, and then reporting an alarm.

S41: and summarizing and counting the number, level, problem category and the like of abnormal state prejudged.

S42: and reporting the alarm of the final result, and displaying the summary information and the detailed information.

The abnormal point data quantity of the prejudgment alarm obtained by the method is 3624, after the operation and maintenance personnel check and examine on site, the quantity of the abnormal points confirmed on site is 2568, and the accuracy rate is 70.86%.

Comparative example 1

And (4) carrying out field daily overhaul on the switching power supplies of 10 wireless stations one by manpower. The proportion of problematic sites was found to be 10%.

Therefore, after the method provided by the application is adopted to obtain the pre-judgment result of the switching power supply of the wireless station, the manual on-site maintenance is carried out, the accuracy rate of the manual maintenance can be effectively improved, and the manual sheet output amount is reduced.

By adopting the method provided by the application, the switching power supply of the abnormal state wireless station under the condition that the abnormal state alarm module fails can be accurately found, and the detection efficiency of the switching power supply of the wireless station is improved.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims

1. A method for prejudging the abnormal state of a wireless station switch power supply is characterized by comprising the following steps:

the basic data are: the method comprises the following steps of A phase voltage value, B phase voltage value, C phase voltage value, DC output voltage value, DC load total current value, rectifier module quantity value, rectifier module current value, storage battery pack current value and storage battery pack voltage value of three-phase AC;

the abnormal state prejudgment configuration table comprises:

3) When the total current of the direct current load has no value and other items have values, the problem of abnormal state is pre-judged to be suspected acquisition failure of the total current of the direct current load, and the manual detection equipment is a switch power supply;

2. The method according to claim 1, wherein the step S1 further comprises: outputting and pre-judging the reason of the abnormal state:

1) When the A phase voltage value, the B phase voltage value and the C phase voltage value of the three-phase alternating current have no value and other items have values, the reason of the abnormal state is judged in advance to be a monitoring unit and an alternating current sampling plate;

3. The method according to claim 1, wherein the step S1 further comprises: outputting a pre-judging abnormal state level:

4. The method according to claim 1, wherein the step S1 further comprises: outputting a pre-judging abnormal state classification result:

2) When the direct current output voltage has no value and other items have values, judging abnormal states in advance, classifying, monitoring and acquiring the abnormal states;

6) When the alternating voltage is not empty and the range is 10-159V or more than 250V, the abnormal state is judged in advance and classified as the alternating voltage abnormality;

5. The abnormal state prediction method for a wireless site switching power supply according to claim 1, wherein the data processing in step S1 includes the steps of:

6. The abnormal state prediction method for a switching power supply of a wireless station according to claim 1, wherein the data judgment in the step S1 comprises the steps of:

7. The abnormal state prediction method for a wireless station switching power supply according to claim 1, comprising the steps of:

8. An apparatus for a method of predicting an abnormal state of a wireless station switching power supply as claimed in any one of claims 1~7, comprising:

data acquisition processing module (1): the system comprises a base data table T1, a pre-judging configuration table and equipment to be manually detected, wherein the base data table T1 is used for storing the acquired data of the switching power supply of a wireless station, processing and judging various data in the base data table T1 according to the abnormal state pre-judging configuration table, and outputting pre-judging abnormal state problems and the equipment to be manually detected;

a prejudgment result output module (2): after the system sends orders to workers, the workers respectively detect each module in a switch power supply of a wireless station according to the problem of the pre-judged abnormal state and equipment to be detected by the workers to determine an abnormal state module;

the basic data are: the method comprises the following steps of (1) three-phase alternating current A phase voltage value, B phase voltage value, C phase voltage value, direct current output voltage value, direct current load total current value, rectifier module current value, storage battery pack current value and storage battery pack voltage value;

the abnormal state prejudgment configuration table comprises:

5) When the current values of the storage battery pack are empty, the problem of the abnormal state is pre-judged to be suspected collection failure of the current of the storage battery pack, and the equipment to be detected manually is a switching power supply, a storage battery sensor and a storage battery;

8) When the direct current output voltage-storage battery pack voltage is greater than 1V and the direct current output voltage and the storage battery pack voltage have effective values, the problem of abnormal states is judged in advance that the voltage difference between the switch power supply and the storage battery is suspected to be overlarge, and equipment to be detected manually is a storage battery sensor, an FSU (self-service terminal unit) and the switch power supply;

9. The apparatus according to claim 8, characterized in that the data acquisition and processing module (1) comprises:

10. The apparatus of claim 8, comprising:

the field abnormal state acquisition module (3) is used for manually acquiring abnormal state equipment and reasons of the wireless station switching power supply on the field and storing the acquired result in a feedback table T5 in a one-to-one correspondence relationship between the abnormal state equipment and the reasons;

feedback module (4): and the system is used for updating the abnormal state prejudgment configuration table according to the feedback table T5.