CN110954150A - Self-checking method and device for sampling unit in moisture-proof device - Google Patents
Self-checking method and device for sampling unit in moisture-proof device Download PDFInfo
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- CN110954150A CN110954150A CN201911081440.3A CN201911081440A CN110954150A CN 110954150 A CN110954150 A CN 110954150A CN 201911081440 A CN201911081440 A CN 201911081440A CN 110954150 A CN110954150 A CN 110954150A
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- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses a self-checking method and a device of a sampling unit in a moisture-proof device, wherein a plurality of moisture-proof devices are respectively applied to a plurality of boxes of electrical equipment; because the humidity in the box changes along with the temperature change of the environment, whether the relative humidity value changes correspondingly or not is judged by utilizing the temperature change in the box body where the humidity sampling unit is located, so that the self-inspection of the temperature sampling unit is realized, the self-inspection process does not need manual participation, and the problem that whether the humidity sampling module runs normally or not in the existing humidity-proof device in each electrical equipment box body is difficult to judge in a manual mode is solved.
Description
Technical Field
The invention relates to the technical field of moisture-proof devices of electrical equipment, in particular to a self-checking method and a self-checking device of a sampling unit in a moisture-proof device.
Background
Various boxes of electrical equipment, including the outdoor box of on-off mechanism case, terminal box, block terminal, sealed dampproofing ability decline can appear in the operation throughout the year, intake ponding easily rainy day. In order to prevent the equipment in the box body from being affected with damp and rusted to be damaged and reduce short circuit in an insulating way, a transformer substation usually adopts certain moisture-proof measures. With the increasing development of electronic detection technology, various moisture-proof dehumidification devices with automatic detection operation functions are also increasingly applied to moisture-proof drying of electrical equipment boxes.
The normal operation and sampling of the temperature and humidity sampling module of the temperature and humidity controller are accurate, which is the precondition of the normal function of the damp-proof device. Therefore, the moisture-proof device needs to be checked regularly after being configured, so that the fact that data acquisition of the hygrothermograph device is correct is confirmed, and the moisture-proof device works normally. The calibration of the temperature and humidity controller sensor in the box body is a very time-consuming matter, and the labor cost is too high to be developed. Therefore, whether the temperature and humidity sampling module normally operates and whether the sampling value is correct or not in the operation process of the moisture-proof device, and effective means for checking and judging are lacked, so that the moisture-proof device cannot effectively play a role due to the abnormity of the sampling module, and elements in the box body are affected with damp and damaged.
Disclosure of Invention
The invention provides a self-checking method and a self-checking device for a sampling unit in a moisture-proof device, aiming at solving the problem that whether a temperature and humidity sampling module in the moisture-proof device in each electrical equipment box body normally operates or not is difficult to judge in a manual mode.
In order to achieve the above purpose, the technical means adopted is as follows:
a self-checking method of a sampling unit in a moisture-proof device applied to an electric apparatus including a plurality of cases, comprising:
self-checking of a temperature sampling unit: in the electrical equipment, acquiring temperature values of a temperature sampling unit to be verified and a plurality of temperature sampling units adjacent to the temperature sampling unit to be verified, calculating an average value of the temperature values of the temperature sampling units, and judging whether the temperature sampling unit to be verified normally operates according to a difference value between the temperature value of the temperature sampling unit to be verified and the average value;
self-checking of a humidity sampling unit: in the electrical equipment, a temperature change value of a box body where a humidity sampling unit to be verified is located is collected, a theoretical relative humidity value and an actual relative humidity value are calculated according to the temperature change value, and whether the humidity sampling unit to be verified normally operates is judged according to a difference value of the theoretical relative humidity value and the actual relative humidity value.
In the scheme, the temperature sampling units of the moisture-proof devices arranged in the box bodies are used for transversely comparing the temperature values, so that the self-inspection of the temperature sampling units is realized; because the humidity in the box changes along with the temperature change of the environment, whether the relative humidity value changes correspondingly or not is judged by utilizing the temperature change in the box body where the humidity sampling unit is positioned, so that the self-inspection of the temperature sampling unit is realized, and the self-inspection process does not need manual participation.
Preferably, the temperature sampling unit self-checking specifically comprises:
s11, in the electrical equipment, acquiring temperature values of a temperature sampling unit to be verified and a plurality of temperature sampling units adjacent to the temperature sampling unit to be verified, and acquiring the operating states of the temperature sampling unit to be verified and a plurality of moisture-proof devices corresponding to the temperature sampling units; the running state comprises started and not started;
s12, dividing temperature sampling units corresponding to the started moisture-proof devices into started groups, and dividing temperature sampling units corresponding to the un-started moisture-proof devices into un-started groups; respectively calculating the average value of the temperature values of the temperature sampling units in the started group and the un-started group;
s13, when the running state of the moisture-proof device corresponding to the temperature sampling unit to be verified is started, calculating the difference value between the temperature value of the temperature sampling unit to be verified and the average value of the started group; when the running state of the moisture-proof device corresponding to the temperature sampling unit to be verified is not started, calculating the difference value between the temperature value of the temperature sampling unit to be verified and the average value of the un-started group; the difference is recorded as delta t;
s14, judging whether the absolute value | delta t | of the difference is larger than a preset temperature deviation threshold value, if so, judging that the temperature sampling unit to be verified operates abnormally, otherwise, judging that the temperature sampling unit to be verified operates normally, and returning to the step S11. The preset temperature deviation threshold value can be set according to different time intervals such as morning, afternoon, evening and the like, can be manually set according to experience, and can also be gradually established and revised in a self-learning mode.
Preferably, the humidity sampling unit self-checking comprises the following specific steps:
s21, in the electrical equipment, acquiring the current moment t of the box body where the humidity sampling unit to be checked is located2Temperature, previous time t1The temperature and the running state of the moisture-proof device corresponding to the humidity sampling unit to be verified; the running state comprises started and not started;
s22, calculating a temperature change value | t of a box body where the humidity sampling unit to be checked is located1-t2And judging | t1-t2Whether | is greater than a preset temperature value t0(ii) a If yes, carrying out the next step; if not, changing the running state of the moisture-proof device corresponding to the humidity sampling unit to be verified; here a preset temperature value t0The temperature of the box body is close to zero, namely, if the temperature of the box body is basically not changed, the operating state of the moisture-proof device can be changed to change the temperature of the box body;
s23, respectively obtaining the current time t2Temperature, previous time t1Saturated water vapor pressure E corresponding to temperature2、E1；
S24, calculating the current time t2Theoretical relative humidity value f2 in the theory of＝f1×E1/E2；
S25, collecting the humidity sampling unit to be checked at the current moment t2Actual relative humidity value f2 miningCalculating the actual relative humidity value f2 miningRelative humidity value f2 in the theory ofIs of a difference value | f2 mining-f2 in the theory ofAnd judging | f2 mining-f2 in the theory ofWhether | is greater than a preset humidity deviation threshold; if so, judging that the humidity sampling unit to be verified operates abnormally, otherwise, judging that the humidity sampling unit to be verified operates normally, and returning to the step S21. The preset humidity deviation threshold value can be manually set according to experience, and can also be gradually established and revised by introducing a self-learning mode;
preferably, the operating environments of the adjacent temperature sampling units and the temperature sampling unit to be verified are consistent. In this preferred scheme, the operating environment unanimity indicates whether indoor or outdoor operation, whether the environment is ventilated, whether there is sunshine etc. select the unanimous dry humidity sampling unit of operating environment to carry out horizontal contrast can avoid because the temperature and humidity difference that the environmental difference leads to is mistaken for the abnormal conditions of temperature sampling unit or humidity sampling unit.
Preferably, after determining that the temperature sampling unit to be verified operates abnormally in S14, the method further includes the following steps: and sending an abnormal operation signal of the temperature sampling unit. In the preferred scheme, when the temperature sampling unit is abnormal, the warning signal is sent out to inform a worker in time, so that the worker can know the abnormal operation condition of the temperature sampling unit at the first time.
Preferably, after determining that the humidity sampling unit to be verified operates abnormally in S25, the method further includes the following steps: and sending an abnormal operation signal of the humidity sampling unit. In this preferred scheme, send warning signal when humidity sampling unit is unusual and can in time inform the staff, make its very first time learn the unusual behavior of humidity sampling unit.
A self-verifying unit for a sampling unit in a moisture barrier comprising:
the temperature sampling unit self-checking module is used for acquiring temperature values of a temperature sampling unit to be checked and a plurality of temperature sampling units adjacent to the temperature sampling unit to be checked in the electrical equipment, calculating an average value of the temperature values of the temperature sampling units, and judging whether the temperature sampling unit to be checked normally operates according to a difference value between the temperature value of the temperature sampling unit to be checked and the average value;
the humidity sampling unit self-checking module is used for acquiring a temperature change value of a box body where the humidity sampling unit to be checked is located in the electrical equipment, calculating a theoretical relative humidity value and an actual relative humidity value according to the temperature change value, and judging whether the humidity sampling unit to be checked normally operates according to a difference value of the theoretical relative humidity value and the actual relative humidity value.
Preferably, the temperature sampling unit self-checking module includes:
the temperature sampling unit data acquisition submodule is used for acquiring temperature values of a temperature sampling unit to be verified and a plurality of temperature sampling units adjacent to the temperature sampling unit to be verified in the electrical equipment and acquiring the operating states of the temperature sampling unit to be verified and the moisture-proof device corresponding to the temperature sampling units; the running state comprises started and not started;
the grouping and average value calculating submodule is used for dividing the temperature sampling units corresponding to the started moisture-proof devices into started groups and dividing the temperature sampling units corresponding to the un-started moisture-proof devices into un-started groups; respectively calculating the average value of the temperature values of the temperature sampling units in the started group and the un-started group;
the difference value calculation submodule is used for calculating the difference value between the temperature value of the temperature sampling unit to be verified and the average value of the started group when the running state of the moisture-proof device corresponding to the temperature sampling unit to be verified is started; when the running state of the moisture-proof device corresponding to the temperature sampling unit to be verified is not started, calculating the difference value between the temperature value of the temperature sampling unit to be verified and the average value of the un-started group; the difference is recorded as delta t;
and the temperature sampling unit operation judgment submodule is used for judging whether the absolute value | delta t | of the difference value is greater than a preset temperature deviation threshold value, if so, judging that the temperature sampling unit to be verified operates abnormally, and if not, judging that the temperature sampling unit to be verified operates normally.
Preferably, the humidity sampling unit self-checking module includes:
a humidity sampling unit data acquisition submodule used for acquiring the current moment t of the box body where the humidity sampling unit to be checked is positioned in the electrical equipment2Temperature, previous time t1The temperature and the running state of the moisture-proof device corresponding to the humidity sampling unit to be verified; the running state comprises started and not started;
a temperature change value operator module for calculating the temperature change value | t of the box body where the humidity sampling unit to be checked is positioned1-t2And judging | t1-t2Whether | is greater than a preset temperature value t0(ii) a If yes, carrying out the next step; if not, changing the running state of the moisture-proof device corresponding to the humidity sampling unit to be verified;
saturated water vapor pressure obtaining submodule for respectively obtaining current time t2Temperature, previous time t1Saturated water vapor pressure E corresponding to temperature2、E1；
A theoretical relative humidity value calculation submodule for calculating the current time t2Theoretical relative humidity value f2 in the theory of＝f1×E1/E2；
The humidity sampling unit operates the judgment submodule and usesAt the current moment t of the collection of the humidity sampling unit to be checked2Actual relative humidity value f2 miningCalculating the actual relative humidity value f2 miningRelative humidity value f2 in the theory ofIs of a difference value | f2 mining-f2 in the theory ofAnd judging | f2 mining-f2 in the theory ofWhether | is greater than a preset humidity deviation threshold; and if so, judging that the humidity sampling unit to be verified operates abnormally, otherwise, judging that the humidity sampling unit to be verified operates normally 1.
Preferably, the self-checking device further comprises an alarm module, which is used for sending out abnormal operation signals of the temperature sampling unit and the humidity sampling unit.
Compared with the prior art, the technical scheme of the invention has the beneficial effects that:
the temperature sampling units of the moisture-proof devices arranged in the box bodies are used for transversely comparing temperature values, so that the self-inspection of the temperature sampling units is realized; utilize the temperature variation in the box that humidity sampling unit located, judge whether its relative humidity value has made corresponding change to realize that temperature sampling unit is from the inspection, need not artifical the participation from the inspection process, solved current dampproof device to each electrical equipment box, temperature, humidity sampling module wherein are difficult to judge its problem of normal operating through the manual type. The invention is simple and easy to implement.
Drawings
FIG. 1 is a flow chart of the self-test of the temperature sampling unit in example 1.
Fig. 2 is a flow chart of the self-test of the humidity sampling unit in example 1.
Fig. 3 is a schematic diagram of a self-verifying unit in embodiment 2.
FIG. 4 is a block diagram of a self-testing apparatus in example 2.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent;
for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product;
it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The technical solution of the present invention is further described below with reference to the accompanying drawings and examples.
Example 1
This embodiment 1 provides a self-checking method for a sampling unit in a moisture-proof device, where the moisture-proof device has a plurality of moisture-proof devices, and the moisture-proof devices are respectively applied to a plurality of boxes of an electrical apparatus, and the self-checking method specifically includes:
temperature sampling unit self-test, as shown in fig. 1:
s11, in the electrical equipment, acquiring temperature values of a temperature sampling unit to be verified and a plurality of temperature sampling units adjacent to the temperature sampling unit to be verified, and acquiring the operating states of the temperature sampling unit to be verified and a plurality of moisture-proof devices corresponding to the temperature sampling units; the running state comprises started and not started;
the adjacent designated distance range in the step is limited according to actual requirements, the operating environments of a plurality of adjacent temperature sampling units and the temperature sampling unit to be checked need to be consistent, namely whether the environment is ventilated or not and whether the environments with sunshine and the like are consistent or not when the temperature sampling units are operated indoors or outdoors, and the fact that the dry and humidity sampling units with consistent operating environments are selected for transverse comparison can be avoided, and the temperature and humidity difference caused by the environment difference is mistaken as the abnormal condition of the temperature sampling units or the humidity sampling units.
S12, dividing temperature sampling units corresponding to the started moisture-proof devices into started groups, and dividing temperature sampling units corresponding to the un-started moisture-proof devices into un-started groups; respectively calculating the average value of the temperature values of the temperature sampling units in the started group and the un-started group;
s13, when the running state of the moisture-proof device corresponding to the temperature sampling unit to be verified is started, calculating the difference value between the temperature value of the temperature sampling unit to be verified and the average value of the started group; when the running state of the moisture-proof device corresponding to the temperature sampling unit to be verified is not started, calculating the difference value between the temperature value of the temperature sampling unit to be verified and the average value of the un-started group; the difference is recorded as delta t;
s14, judging whether the absolute value | delta t | of the difference is larger than a preset temperature deviation threshold value, if so, judging that the temperature sampling unit to be verified operates abnormally and sending an abnormal operation signal of the temperature sampling unit, and if not, judging that the temperature sampling unit to be verified operates normally and returning to the step S11.
Humidity sampling unit self-test, as shown in fig. 2:
s21, in the electrical equipment, acquiring the current moment t of the box body where the humidity sampling unit to be checked is located2Temperature, previous time t1The temperature and the running state of the moisture-proof device corresponding to the humidity sampling unit to be verified; the running state comprises started and not started;
s22, calculating a temperature change value | t of a box body where the humidity sampling unit to be checked is located1-t2And judging | t1-t2Whether | is greater than a preset temperature value t0(ii) a If yes, carrying out the next step; if not, changing the running state of the moisture-proof device corresponding to the humidity sampling unit to be verified;
s23, respectively obtaining the current time t2Temperature, previous time t1Saturated water vapor pressure E corresponding to temperature2、E1；
S24, calculating the current time t2Theoretical relative humidity value f2 in the theory of＝f1×E1/E2；
S25, collecting the humidity sampling unit to be checked at the current moment t2Actual relative humidity value f2 miningCalculating the actual relative humidity value f2 miningRelative humidity value f2 in the theory ofIs of a difference value | f2 mining-f2 in the theory ofAnd judging | f2 mining-f2 in the theory ofWhether | is greater than a preset humidity deviation threshold; if so, judging that the humidity sampling unit to be verified operates abnormally and sending an abnormal operation signal of the humidity sampling unit, otherwise, judging that the humidity sampling unit to be verified operates normally and returning to the step S21.
Example 2
This embodiment 2 provides a self-verifying apparatus for a sampling unit in a moisture-proof device, as shown in fig. 3 and 4, comprising:
the temperature sampling unit self-checking module is used for acquiring temperature values of a temperature sampling unit to be checked and a plurality of temperature sampling units adjacent to the temperature sampling unit to be checked in the electrical equipment, calculating an average value of the temperature values of the temperature sampling units, and judging whether the temperature sampling unit to be checked normally operates according to a difference value between the temperature value of the temperature sampling unit to be checked and the average value; the function of the temperature sampling unit self-checking module is realized by the following sub-modules:
the temperature sampling unit data acquisition submodule 11 is used for acquiring temperature values of a temperature sampling unit to be verified and a plurality of temperature sampling units adjacent to the temperature sampling unit to be verified in the electrical equipment, and acquiring the operating states of the temperature sampling unit to be verified and the moisture-proof devices corresponding to the temperature sampling units; the running state comprises started and not started; in this embodiment 2, the temperature values of the temperature sampling units are collected by the temperature sensor 1 disposed in the box body;
the grouping and average value calculating submodule 12 is used for dividing the temperature sampling units corresponding to the started moisture-proof devices into started groups and dividing the temperature sampling units corresponding to the un-started moisture-proof devices into un-started groups; respectively calculating the average value of the temperature values of the temperature sampling units in the started group and the un-started group;
the difference value calculation submodule 13 is configured to calculate a difference value between the temperature value of the temperature sampling unit to be verified and the average value of the started group when the operation state of the moisture protection device corresponding to the temperature sampling unit to be verified is started; when the running state of the moisture-proof device corresponding to the temperature sampling unit to be verified is not started, calculating the difference value between the temperature value of the temperature sampling unit to be verified and the average value of the un-started group; the difference is recorded as delta t;
the temperature sampling unit operation judgment sub-module 14 is configured to judge whether an absolute value | Δ t | of the difference is greater than a preset temperature deviation threshold, if yes, judge that the temperature sampling unit to be verified operates abnormally, and if not, judge that the temperature sampling unit to be verified operates normally;
and the alarm module is used for sending an abnormal operation signal of the temperature sampling unit. The alarm module can be provided with a warning lamp and/or an alarm to send out audible and visual warning signals.
In this embodiment, the data acquired by the temperature sampling unit data acquisition submodule 11 is transmitted to the grouping and average value calculation submodule 12 through the wireless communication module 3 in communication modes such as GPRS, CDMA, 3G/4G, WIFI and the like for subsequent calculation; meanwhile, the grouping and average value calculating submodule 12, the difference value calculating submodule 13 and the temperature sampling unit operation judging submodule 14 are realized based on the background 4 and comprise a database of the background 4 and a server; the result obtained by the temperature sampling unit operation judgment submodule 14 is transmitted to the next-stage background monitoring equipment 5, and the background monitoring equipment 5 comprises a display and an audible and visual alarm device, so that an operator can conveniently monitor the internal condition of the box body in the station and the operation state of the moisture-proof device in real time.
The humidity sampling unit self-checking module is used for acquiring a temperature change value of a box body where the humidity sampling unit to be checked is located in the electrical equipment, calculating a theoretical relative humidity value and an actual relative humidity value according to the temperature change value, and judging whether the humidity sampling unit to be checked normally operates according to a difference value of the theoretical relative humidity value and the actual relative humidity value; the function of the humidity sampling unit self-checking module is realized by the following sub-modules:
a humidity sampling unit data acquisition submodule 21 for acquiring the current time t of the box body in which the humidity sampling unit to be checked is positioned in the electrical equipment2Temperature, previous time t1The temperature and the running state of the moisture-proof device corresponding to the humidity sampling unit to be verified; the running state comprises started and not started; in this embodiment 2, the temperature values of the temperature sampling units are collected by the humidity sensor 2 disposed in the box body;
a temperature change value calculation operator module 22 for calculatingCalculating the temperature change value | t of the box body where the humidity sampling unit to be checked is positioned1-t2And judging | t1-t2Whether | is greater than a preset temperature value t0(ii) a If yes, carrying out the next step; if not, changing the running state of the moisture-proof device corresponding to the humidity sampling unit to be verified;
a saturated water vapor pressure obtaining submodule 23 for obtaining the current time t respectively2Temperature, previous time t1Saturated water vapor pressure E corresponding to temperature2、E1；
A theoretical relative humidity value calculating submodule 24 for calculating the current time t2Theoretical relative humidity value f2 in the theory of＝f1×E1/E2；
A humidity sampling unit operation judgment submodule 25 for acquiring the humidity sampling unit to be checked at the current moment t2Actual relative humidity value f2 miningCalculating the actual relative humidity value f2 miningRelative humidity value f2 in the theory ofIs of a difference value | f2 mining-f2 in the theory ofAnd judging | f2 mining-f2 in the theory ofWhether | is greater than a preset humidity deviation threshold; and if not, judging that the humidity sampling unit to be verified normally operates.
And the alarm module is used for sending an abnormal operation signal of the humidity sampling unit. The alarm module can be provided with a warning lamp and/or an alarm to send out audible and visual warning signals.
In this embodiment, the data acquired by the humidity sampling unit data acquisition submodule 21 is transmitted to the temperature change value calculation operator module 22 through the wireless communication module 3 in the communication modes of GPRS, CDMA, 3G/4G, WIFI, etc. to perform subsequent calculation; meanwhile, the temperature change value calculation sub-module 22, the saturated water vapor pressure acquisition sub-module 23, the theoretical relative humidity value calculation sub-module 24 and the humidity sampling unit operation judgment sub-module 25 are realized based on a background and comprise a database and a server of the background 4; the result obtained by the humidity sampling unit operation judgment submodule 25 is transmitted to the next-stage background monitoring equipment 5, and the background monitoring equipment 5 comprises a display and an audible and visual alarm device, so that the operation personnel can monitor the internal condition of the box body in the station and the operation state of the moisture-proof device in real time.
The terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent;
it should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A method for self-checking a sampling unit in a moisture-proof device applied to an electric apparatus including a plurality of cases, comprising:
self-checking of a temperature sampling unit: in the electrical equipment, acquiring temperature values of a temperature sampling unit to be verified and a plurality of temperature sampling units adjacent to the temperature sampling unit to be verified, calculating an average value of the temperature values of the temperature sampling units, and judging whether the temperature sampling unit to be verified normally operates according to a difference value between the temperature value of the temperature sampling unit to be verified and the average value;
self-checking of a humidity sampling unit: in the electrical equipment, a temperature change value of a box body where a humidity sampling unit to be verified is located is collected, a theoretical relative humidity value and an actual relative humidity value are calculated according to the temperature change value, and whether the humidity sampling unit to be verified normally operates is judged according to a difference value of the theoretical relative humidity value and the actual relative humidity value.
2. The self-checking method for the sampling unit in the moisture-proof device according to claim 1, wherein the self-checking of the temperature sampling unit comprises the following specific steps:
s11, in the electrical equipment, acquiring temperature values of a temperature sampling unit to be verified and a plurality of temperature sampling units adjacent to the temperature sampling unit to be verified, and acquiring the operating states of the temperature sampling unit to be verified and a plurality of moisture-proof devices corresponding to the temperature sampling units; the running state comprises started and not started;
s12, dividing temperature sampling units corresponding to the started moisture-proof devices into started groups, and dividing temperature sampling units corresponding to the un-started moisture-proof devices into un-started groups; respectively calculating the average value of the temperature values of the temperature sampling units in the started group and the un-started group;
s13, when the running state of the moisture-proof device corresponding to the temperature sampling unit to be verified is started, calculating the difference value between the temperature value of the temperature sampling unit to be verified and the average value of the started group; when the running state of the moisture-proof device corresponding to the temperature sampling unit to be verified is not started, calculating the difference value between the temperature value of the temperature sampling unit to be verified and the average value of the un-started group; the difference is recorded as delta t;
s14, judging whether the absolute value | delta t | of the difference is larger than a preset temperature deviation threshold value, if so, judging that the temperature sampling unit to be verified operates abnormally, otherwise, judging that the temperature sampling unit to be verified operates normally, and returning to the step S11.
3. The self-test method for the sampling unit in the moisture-proof device as claimed in claim 1, wherein the self-test of the humidity sampling unit comprises the following specific steps:
s21, in the electrical equipment, acquiring the current moment t of the box body where the humidity sampling unit to be checked is located2Temperature, previous time t1The temperature and the running state of the moisture-proof device corresponding to the humidity sampling unit to be verified; the running state comprises started and not started;
s22, calculating a temperature change value | t of a box body where the humidity sampling unit to be checked is located1-t2And judging | t1-t2Whether | is greater than a preset temperature value t0(ii) a If yes, carrying out the next step; if not, changing the humidity sampling to be verifiedThe operation state of the moisture-proof device corresponding to the unit;
s23, respectively obtaining the current time t2Temperature, previous time t1Saturated water vapor pressure E corresponding to temperature2、E1；
S24, calculating the current time t2Theoretical relative humidity value f2 in the theory of＝f1×E1/E2；
S25, collecting the humidity sampling unit to be checked at the current moment t2Actual relative humidity value f2 miningCalculating the actual relative humidity value f2 miningRelative humidity value f2 in the theory ofIs of a difference value | f2 mining-f2 in the theory ofAnd judging | f2 mining-f2 in the theory ofWhether | is greater than a preset humidity deviation threshold; if so, judging that the humidity sampling unit to be verified operates abnormally, otherwise, judging that the humidity sampling unit to be verified operates normally, and returning to the step S21.
4. The self-checking method for sampling units in a moisture-proof device as claimed in claim 2, wherein a plurality of adjacent temperature sampling units are consistent with the operating environment of the temperature sampling unit to be checked.
5. The self-checking method for the sampling unit in the moisture-proof device according to claim 2, wherein the step of judging the abnormal operation of the temperature sampling unit to be verified in the step S14 further comprises the following steps: and sending an abnormal operation signal of the temperature sampling unit.
6. The self-checking method for the sampling unit in the moisture-proof device according to claim 3, wherein the step of judging the abnormal operation of the moisture sampling unit to be verified in the step S25 further comprises the following steps: and sending an abnormal operation signal of the humidity sampling unit.
7. A self-verifying unit for a sampling unit in a moisture barrier, comprising:
the temperature sampling unit self-checking module is used for acquiring temperature values of a temperature sampling unit to be checked and a plurality of temperature sampling units adjacent to the temperature sampling unit to be checked in the electrical equipment, calculating an average value of the temperature values of the temperature sampling units, and judging whether the temperature sampling unit to be checked normally operates according to a difference value between the temperature value of the temperature sampling unit to be checked and the average value;
the humidity sampling unit self-checking module is used for acquiring a temperature change value of a box body where the humidity sampling unit to be checked is located in the electrical equipment, calculating a theoretical relative humidity value and an actual relative humidity value according to the temperature change value, and judging whether the humidity sampling unit to be checked normally operates according to a difference value of the theoretical relative humidity value and the actual relative humidity value.
8. The self-verifying unit for a sampling unit in a moisture barrier as claimed in claim 7, wherein said temperature sampling unit self-verifying module comprises:
the temperature sampling unit data acquisition submodule is used for acquiring temperature values of a temperature sampling unit to be verified and a plurality of temperature sampling units adjacent to the temperature sampling unit to be verified in the electrical equipment and acquiring the operating states of the temperature sampling unit to be verified and the moisture-proof device corresponding to the temperature sampling units; the running state comprises started and not started;
the grouping and average value calculating submodule is used for dividing the temperature sampling units corresponding to the started moisture-proof devices into started groups and dividing the temperature sampling units corresponding to the un-started moisture-proof devices into un-started groups; respectively calculating the average value of the temperature values of the temperature sampling units in the started group and the un-started group;
the difference value calculation submodule is used for calculating the difference value between the temperature value of the temperature sampling unit to be verified and the average value of the started group when the running state of the moisture-proof device corresponding to the temperature sampling unit to be verified is started; when the running state of the moisture-proof device corresponding to the temperature sampling unit to be verified is not started, calculating the difference value between the temperature value of the temperature sampling unit to be verified and the average value of the un-started group; the difference is recorded as delta t;
and the temperature sampling unit operation judgment submodule is used for judging whether the absolute value | delta t | of the difference value is greater than a preset temperature deviation threshold value, if so, judging that the temperature sampling unit to be verified operates abnormally, and if not, judging that the temperature sampling unit to be verified operates normally.
9. The self-verifying unit for a sampling unit in a moisture barrier as claimed in claim 8, wherein said humidity sampling unit self-verifying module comprises:
a humidity sampling unit data acquisition submodule used for acquiring the current moment t of the box body where the humidity sampling unit to be checked is positioned in the electrical equipment2Temperature, previous time t1The temperature and the running state of the moisture-proof device corresponding to the humidity sampling unit to be verified; the running state comprises started and not started;
a temperature change value operator module for calculating the temperature change value | t of the box body where the humidity sampling unit to be checked is positioned1-t2And judging | t1-t2Whether | is greater than a preset temperature value t0(ii) a If yes, carrying out the next step; if not, changing the running state of the moisture-proof device corresponding to the humidity sampling unit to be verified;
saturated water vapor pressure obtaining submodule for respectively obtaining current time t2Temperature, previous time t1Saturated water vapor pressure E corresponding to temperature2、E1；
A theoretical relative humidity value calculation submodule for calculating the current time t2Theoretical relative humidity value f2 in the theory of＝f1×E1/E2；
A humidity sampling unit operation judgment submodule for acquiring the humidity sampling unit to be verified at the current moment t2Actual relative humidity value f2 miningCalculating the actual relative humidity value f2 miningRelative humidity value f2 in the theory ofIs of a difference value | f2 mining-f2 in the theory ofAnd judging | f2 mining-f2 in the theory ofWhether | is greater than a preset humidity deviation threshold; if yes, then the station is determinedAnd if not, judging that the humidity sampling unit to be verified normally operates.
10. The self-verifying unit of a sampling unit in a moisture barrier as claimed in claim 9, further comprising an alarm module for emitting an abnormal operation signal of the temperature sampling unit and an abnormal operation signal of the humidity sampling unit.
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