CN113933565A - Measurement indicating device and method of relay protection plate - Google Patents
Measurement indicating device and method of relay protection plate Download PDFInfo
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- CN113933565A CN113933565A CN202111184469.1A CN202111184469A CN113933565A CN 113933565 A CN113933565 A CN 113933565A CN 202111184469 A CN202111184469 A CN 202111184469A CN 113933565 A CN113933565 A CN 113933565A
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- 238000005259 measurement Methods 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 238000012545 processing Methods 0.000 claims description 9
- 238000012360 testing method Methods 0.000 claims description 9
- 241001422033 Thestylus Species 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 10
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- 238000012790 confirmation Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0084—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring voltage only
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/22—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-emitting devices, e.g. LED, optocouplers
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Abstract
The invention discloses a measurement indicating device and a method of a relay pressure maintaining plate. The image acquisition module is electrically connected with the control module and is used for acquiring the identification information of the relay pressure maintaining plate to be detected. The measuring module is electrically connected with the control module and is used for measuring the voltage of the first end and the voltage of the second end of the outlet pressing plate to be measured respectively. The control module is used for determining the input judgment result of the outlet pressing plate to be tested according to the pre-stored data information of the outlet pressing plate to be tested, the voltage of the first end of the outlet pressing plate to be tested and the voltage of the second end of the outlet pressing plate to be tested. The measurement indication method of the relay protection pressing plate provided by the embodiment of the invention can avoid the mistaken throwing of the outlet pressing plate to be measured caused by the deviation of the relevant knowledge memorized by the operating personnel when the operating personnel is used for judging whether the outlet pressing plate to be measured is thrown in, improve the accuracy of the throwing of the pressing plate to be measured and ensure the safe operation of the transformer substation.
Description
Technical Field
The embodiment of the invention relates to the technical field of relay protection, in particular to a measurement indicating device and method of a relay protection plate.
Background
The transformer substation protection device's export clamp plate is the important component part of protection return circuit, mainly indicates protection trip clamp plate, starts out malfunctioning clamp plate, and malfunctioning antithetical couplet jumps clamp plate etc. when protection device appears the condition that action contact adhesion or action relay did not return, transformer substation's operating personnel if do not measure just to drop the export clamp plate, will cause the circuit breaker mistake to trip to cause unnecessary loss, influence the safety and stability of electric wire netting. Thus, when an operation is involved that requires the outlet platen to be re-plunged, the substation operator measures the voltage across the platen to determine whether to plunge the outlet platen before plunging into the associated outlet platen.
At present, when the transformer substation operating personnel measure the voltage at two ends of the outlet pressing plate, the high-resistance universal meter is adopted, then whether the outlet pressing plate can be put into the transformer substation or not is judged according to the voltage at the two ends measured by the universal meter, but the process of judging whether the outlet pressing plate can be put into the transformer substation or not is judged by means of the relevant knowledge memorized by the operating personnel, and the condition of judging errors is easily caused due to the memory deviation, so that the outlet pressing plate is mistakenly put into the transformer substation, and the safe operation of the transformer substation is influenced.
Disclosure of Invention
The invention provides a measurement indicating device and method of a relay pressure maintaining plate, which aim to improve the accuracy of the input of the relay pressure maintaining plate and ensure the safe operation of a transformer substation.
In a first aspect, an embodiment of the present invention provides a measurement indication device for a relay pressure maintaining plate, including a measurement module, a control module, an image acquisition module, and a display module;
the image acquisition module is electrically connected with the control module and is used for acquiring the identification information of the relay pressure maintaining plate to be detected, and the relay pressure maintaining plate to be detected comprises an outlet pressure plate to be detected;
the measuring module is electrically connected with the control module and is used for measuring the voltage of the first end and the voltage of the second end of the outlet pressing plate to be measured respectively;
the control module is used for determining an input judgment result of the outlet pressing plate to be tested according to prestored data information of the outlet pressing plate to be tested, the voltage of the first end of the outlet pressing plate to be tested and the voltage of the second end of the outlet pressing plate to be tested, and the input judgment result comprises input and non-input;
the display module is electrically connected with the control module and is used for displaying the input judgment result of the outlet pressing plate to be tested.
Optionally, a first end of the outlet pressure plate to be tested is connected to a first power supply, a second end of the outlet pressure plate to be tested is connected to a second power supply, the voltage output by the first power supply is a positive voltage, and the voltage output by the second power supply is a negative voltage;
the control module is used for determining that the input judgment result of the outlet pressing plate to be measured is input when the voltage of the first end of the outlet pressing plate to be measured, measured by the measuring module, is zero and the voltage of the second end of the outlet pressing plate to be measured is a negative value;
the control module is used for determining that the input judgment result of the outlet pressing plate to be measured is unavailable when the voltage of the first end of the outlet pressing plate to be measured, which is measured by the measuring module, is a positive value and the voltage of the second end of the outlet pressing plate to be measured is a negative value; or the control module is used for determining that the input judgment result of the outlet pressing plate to be measured is non-input when the voltage of the first end of the outlet pressing plate to be measured, measured by the measuring module, is zero and the voltage of the second end of the outlet pressing plate to be measured is zero; or the control module is used for determining that the input judgment result of the outlet pressing plate to be measured is unavailable when the voltage of the first end of the outlet pressing plate to be measured, which is measured by the measuring module, is a positive value and the voltage of the second end of the outlet pressing plate to be measured is a positive value.
Optionally, the measurement indication device of the secondary pressure maintaining plate further includes an operation panel, the operation panel is electrically connected to the control module, the operation panel includes a plurality of input units, and the control module is configured to enter a corresponding working mode according to an input action of the input units.
Optionally, the plurality of input units include a first input unit, a second input unit, a third input unit, a fourth input unit, and a fifth input unit;
the control module is used for entering a pressing plate identification mode according to the input action of the first input unit and identifying the relay pressure-maintaining plate to be detected according to the identification information of the relay pressure-maintaining plate to be detected, which is acquired by the image acquisition module;
the control module is used for entering a pressure plate measuring mode according to the input action of the second input unit and acquiring the voltage of the first end and the voltage of the second end of the outlet pressure plate to be measured, which are measured by the measuring module;
the control module is used for entering a pressure plate library selection mode according to the input action of the third input unit and selecting a database corresponding to the relay pressure maintaining plate to be detected according to the identification information of the relay pressure maintaining plate to be detected;
the control module is used for entering a pressing plate judging mode according to the input action of the fourth input unit and determining the input judging result of the outlet pressing plate to be detected according to the prestored data information of the outlet pressing plate to be detected, the voltage of the first end of the outlet pressing plate to be detected and the voltage of the second end of the outlet pressing plate to be detected;
and the control module is used for entering a shutdown mode according to the input action of the fifth input unit.
Optionally, the measuring module includes a measuring unit, a gear adjusting unit, and a signal converting unit;
the measuring unit is used for connecting the testing end of the outlet pressing plate to be tested and the grounding wire, and the testing end of the outlet pressing plate to be tested is the first end or the second end of the outlet pressing plate to be tested;
the gear adjusting unit is electrically connected with the measuring unit and is used for adjusting the measuring gear of the measuring unit;
one end of the signal conversion unit is electrically connected with the gear adjusting unit, the other end of the signal conversion unit is electrically connected with the control module, and the signal conversion unit is used for converting the voltage signal measured by the measuring unit into an input signal which can be recognized by the control module.
Optionally, the measuring unit includes a stylus and a grounding clip, the stylus is used for connecting the testing end of the outlet pressing plate to be tested, and the grounding clip is used for connecting the grounding wire.
Optionally, the signal conversion unit includes a photoelectric isolator.
Optionally, the control module includes a processing unit and a storage unit, and the processing unit is electrically connected to the measurement module, the image acquisition module, the display module, and the storage unit respectively;
the storage unit is used for pre-storing data information of a plurality of outlet pressing plates, and the data information of the outlet pressing plates comprises the data information of the outlet pressing plate to be detected.
Optionally, the to-be-tested relay protection plate further includes a to-be-tested function pressing plate, the control module is configured to determine, according to the identification information of the to-be-tested relay protection plate acquired by the image acquisition module, that the name and type of the to-be-tested relay protection plate are the to-be-tested function pressing plate, and control the display module to display the type and name of the to-be-tested relay protection plate.
In a second aspect, an embodiment of the present invention further provides a measurement indication method for a secondary pressure maintaining plate, where the measurement indication method for the secondary pressure maintaining plate includes:
the image acquisition module acquires identification information of the relay pressure maintaining plate to be detected; the relay pressure maintaining plate to be tested comprises an outlet pressure plate to be tested;
the measuring module measures the voltage of the first end and the voltage of the second end of the outlet pressing plate to be measured respectively;
the control module determines an input judgment result of the outlet pressing plate to be tested according to prestored data information of the outlet pressing plate to be tested, the voltage of the first end of the outlet pressing plate to be tested and the voltage of the second end of the outlet pressing plate to be tested, wherein the input judgment result comprises input and non-input;
and the display module displays the input judgment result of the outlet pressing plate to be tested.
The embodiment of the invention provides a measurement indicating device and a method of a relay pressure maintaining plate. The control module determines the name and the type of the relay pressure plate to be detected according to the identification information of the relay pressure plate to be detected, which is acquired by the image acquisition module, and when the relay pressure plate to be detected is the outlet pressure plate to be detected, the control module determines the input judgment result of the outlet pressure plate to be detected according to the voltage of the first end and the voltage of the second end of the outlet pressure plate to be detected, which are measured by the measurement module, and the pre-stored data information of the outlet pressure plate to be detected, and displays the input judgment result on the display module. The control module of the embodiment of the invention judges whether the outlet pressing plate to be tested is put into or not according to the prestored data information of the outlet pressing plate to be tested and the voltages of the first end and the second end of the outlet pressing plate to be tested, which are measured by the measuring module, so that the phenomenon that the outlet pressing plate to be tested is put into or not depending on the deviation of the relevant knowledge memorized by the operating personnel can be avoided, the accuracy of the input of the pressing plate to be tested is improved, and the safe operation of a transformer substation is ensured.
Drawings
Fig. 1 is a schematic structural diagram of a measurement indication device of a relay pressure maintaining plate according to a first embodiment of the present invention;
fig. 2 is a connection circuit diagram of a relay protection board according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a measurement indicating device of a relay pressure maintaining plate according to a second embodiment of the present invention;
fig. 4 is a schematic structural diagram of a measurement indicating device of a relay pressure maintaining plate according to a third embodiment of the present invention;
fig. 5 is a schematic structural diagram of a measurement indication method of a relay pressure maintaining plate according to a fourth embodiment of the present invention;
fig. 6 is a flowchart of a measurement indication method of a relay pressure maintaining plate according to a fifth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a schematic structural diagram of a measurement indicating device of a relay pressure maintaining plate according to an embodiment of the present invention, and referring to fig. 1, the measurement indicating device of the relay pressure maintaining plate includes a measurement module 100, a control module 200, an image acquisition module 300, and a display module 400;
the image acquisition module 300 is electrically connected with the control module 200, the image acquisition module 200 is used for acquiring identification information of a relay pressure maintaining plate to be detected, and the relay pressure maintaining plate to be detected comprises an outlet pressure plate to be detected;
the measurement module 100 is electrically connected with the control module 200, and the measurement module 100 is used for measuring the voltage of the first end and the voltage of the second end of the outlet pressure plate to be measured respectively;
the control module 200 is configured to determine an input determination result of the outlet pressure plate to be tested according to pre-stored data information of the outlet pressure plate to be tested, the voltage of the first end of the outlet pressure plate to be tested, and the voltage of the second end of the outlet pressure plate to be tested, where the input determination result includes an input possibility and an non-input possibility;
the display module 400 is electrically connected with the control module 200, and the display module 400 is used for displaying the input judgment result of the outlet pressing plate to be tested.
The image obtaining module 300 may include a camera, and the camera obtains an image of the relay pressure maintaining plate to be measured. The identification information comprises the ID of the relay pressure maintaining plate to be detected, each relay pressure maintaining plate to be detected corresponds to a unique ID, namely each ID corresponds to the name and the type of one relay pressure maintaining plate to be detected. The ID may be a string of numbers. The relay pressure-maintaining plate to be tested is marked with an ID, and the control module 200 can determine the name and the type of the relay pressure-maintaining plate to be tested according to the ID of the relay pressure-maintaining plate to be tested, which is acquired by the image acquisition module 300. The type of the relay pressure maintaining plate to be tested comprises an outlet pressure plate to be tested.
The control module 200 may be a chip, the display module 400 may be a display screen, and the display module 400 may display the input determination result of the outlet pressing plate to be tested, and may also display the measured voltage of the first end and the measured voltage of the second end of the outlet pressing plate to be tested, and the name and the type of the relay protection pressing plate to be tested. The data information of the outlet pressing plate to be tested comprises a standard value of the voltage of the first end and a standard value of the voltage of the second end which correspond to the outlet pressing plate to be tested when the outlet pressing plate to be tested can be switched on, and a standard value of the voltage of the first end and a standard value of the voltage of the second end which correspond to the outlet pressing plate to be tested when the outlet pressing plate to be tested cannot be switched on.
The working principle of the measurement indicating device of the relay pressure maintaining plate is as follows: after acquiring the identification information of the relay pressure-maintaining plate to be tested, the image acquisition module 200 transmits the identification information to the control module 200, and the control module 200 determines the name and the category of the relay pressure-maintaining plate to be tested according to the identification information and can display the name and the category of the relay pressure-maintaining plate to be tested on the display module 400. When the relay protection pressing plate to be tested is the outlet pressing plate to be tested, the measuring module 100 measures the voltage of the first end and the voltage of the second end of the outlet pressing plate to be tested, the control module 200 determines the input result of the outlet pressing plate to be tested according to the prestored standard value of the voltage of the first end of the outlet pressing plate to be tested, the standard value of the voltage of the second end, the measured voltage of the first end and the measured voltage of the second end, and displays the input judgment result on the display module 400, so that the reference of operators is facilitated.
The control module of the measurement indicating device of the relay pressure-maintaining plate provided by the embodiment judges whether to input the outlet pressure plate to be detected according to the prestored data information of the outlet pressure plate to be detected, the voltage of the first end and the second end of the outlet pressure plate to be detected measured, which is measured by the measurement module, can avoid the error input of the outlet pressure plate to be detected caused when the deviation occurs in the related knowledge memorized by the operation personnel when the outlet pressure plate to be detected is input by the operation personnel, the input accuracy of the relay pressure-maintaining plate to be detected is improved, and the safe operation of the transformer substation is ensured.
Fig. 2 is a circuit diagram of a relay pressure maintaining plate according to a first embodiment of the present invention, referring to fig. 1 and fig. 2, optionally, a first end of the outlet pressure plate 02 to be tested is connected to a first power supply a1, a second end of the outlet pressure plate 02 to be tested is connected to a second power supply a2, a voltage output by the first power supply a1 is a positive voltage, and a voltage output by the second power supply a2 is a negative voltage;
the control module 200 is configured to determine that the input determination result of the outlet pressure plate 02 to be measured is input when the voltage at the first end of the outlet pressure plate 02 to be measured, measured by the measurement module 100, is zero and the voltage at the second end is a negative value;
the control module 200 is configured to determine that the input determination result of the outlet pressure plate 02 to be measured is that the outlet pressure plate 02 to be measured cannot be input when the voltage of the first end of the outlet pressure plate 02 to be measured by the measurement module 100 is a positive value and the voltage of the second end of the outlet pressure plate to be measured is a negative value; or, the control module 200 is configured to determine that the input determination result of the outlet pressing plate 02 to be measured is non-input when the voltage at the first end of the outlet pressing plate 02 to be measured, measured by the measuring module 100, is zero and the voltage at the second end is zero; or, the control module 200 is configured to determine that the input determination result of the outlet pressure plate 02 to be measured is unavailable when the voltage of the first end of the outlet pressure plate 02 to be measured by the measurement module 100 is a positive value and the voltage of the second end is a positive value.
Illustratively, the outlet pressure plate 02 to be tested is connected to the first power supply A1 through a contact Q1 of a relay of a certain function pressure plate, and the second end of the outlet pressure plate 02 to be tested is connected to the second power supply A2 through a certain protection relay 03. When the voltage of the first end of the outlet pressing plate 02 to be measured is zero and the voltage of the second end is a negative value, the contact Q1 of the relay of the functional pressing plate is turned off, the contact of the protective relay 03 is not turned off, and the pressing plate can be switched on at the moment.
The voltage of the first end of the outlet pressing plate 02 that awaits measuring is the positive value, when the voltage of second end is the negative value, indicate that the contact Q1 of the relay of function pressing plate should jump off under the circumstances of not getting electricity, because the contact Q1 of the relay of function pressing plate takes place the adhesion or the relay does not return when, make the contact Q1 of the relay of function pressing plate always be in the closed state, can not drop into the outlet pressing plate 02 that awaits measuring this moment, otherwise drop into the outlet pressing plate 02 that awaits measuring after, protection relay 03 has the electric current to flow through, can lead to the circuit breaker error tripping operation among the protection device relevant with protection relay 03, influence the safety and stability of electric wire netting.
The voltage of the first end of the outlet pressing plate 02 to be measured is zero, and when the voltage of the second end is zero, it indicates that the circuit is disconnected, and the outlet pressing plate 02 to be measured is not put into use at this time, or the voltage of the first end of the outlet pressing plate 02 to be measured is a positive value, and when the voltage of the second end is a positive value, the outlet pressing plate 02 to be measured is not put into use.
Example two
Fig. 3 is a schematic structural diagram of a measurement indicating device of a relay pressure maintaining plate according to a second embodiment of the present invention, and on the basis of the first embodiment, optionally, referring to fig. 3, a measurement module 100 includes a measurement unit 110, a gear adjustment unit 120, and a signal conversion unit 130;
the measuring unit 110 is used for connecting a testing end of the outlet pressing plate to be tested and a grounding wire, wherein the testing end of the outlet pressing plate to be tested is a first end or a second end of the outlet pressing plate to be tested;
the gear adjusting unit 120 is electrically connected with the measuring unit 110, and the gear adjusting unit 120 is used for adjusting the measuring gear of the measuring unit 110;
one end of the signal conversion unit 130 is electrically connected to the gear adjustment unit 120, and the other end is electrically connected to the control module 200, and the signal conversion unit 130 is configured to convert the voltage signal measured by the measurement unit 110 into an input signal recognizable by the control module 200.
Optionally, the measurement unit 110 includes a stylus for connecting a test end of the outlet pressure plate to be tested, and a ground clip for connecting a ground wire.
When the voltage of the first end of the outlet pressing plate to be measured is measured, the meter pen is in contact with the first end of the outlet pressing plate to be measured, and meanwhile the grounding wire is clamped by the grounding clamp. When the voltage of the second end of the outlet pressing plate to be measured is measured, the meter pen is in contact with the second end of the outlet pressing plate to be measured, and meanwhile the grounding wire is clamped by the grounding clamp. When the voltage of the outlet pressing plate to be measured is measured through the measuring unit 110, the operation can be performed by only one hand, and the contact with the first end and the grounding wire is not required to be controlled by two hands respectively, or the contact with the second end and the grounding wire is not required to be controlled by two hands respectively, so that the measurement of the outlet pressing plate to be measured is easier to operate. And the measured voltage is transmitted to the control module 200, and the control module 200 controls the display module 400 to display the measured voltage, thereby facilitating the reading of the operator.
When the voltages at the two ends of the outlet pressing plate to be measured are measured, the voltage at the first end or the second end of the outlet pressing plate to be measured can be measured after the gear adjusting unit 120 is adjusted to the direct-current voltage gear.
Optionally, the signal conversion unit 130 includes a photo isolator. The voltage value of the voltage signal measured by the measurement unit 110 is large, and the direct input to the control module 200 may cause damage to the control module 200. Therefore, the signal conversion is performed through the optoelectronic isolator. The signal output by the opto-isolator can be recognized by the control module 200 without damaging the control module 200 by an excessive value.
EXAMPLE III
Fig. 4 is a schematic structural diagram of a measurement indicating device of a relay pressure maintaining plate according to a third embodiment of the present invention, and referring to fig. 4, optionally, the control module 200 includes a processing unit 210 and a storage unit 220, where the processing unit 210 is electrically connected to the measurement module 100, the image obtaining module 300, the display module 400 and the storage unit 220, respectively;
the storage unit 220 is configured to store data information of a plurality of outlet pressure plates in advance, where the data information of the plurality of outlet pressure plates includes data information of an outlet pressure plate to be measured.
The data information of each outlet pressure plate included in the power grid system may be pre-stored in the storage unit 220, so that when the outlet pressure plate to be measured is measured and whether the outlet pressure plate to be measured can be put into the storage unit 220 is determined, the processing unit 210 may directly call the data information of the outlet pressure plate to be measured from the storage unit 220.
The working process of the measurement indicating device of the relay pressure maintaining plate in this embodiment is the same as that in the first embodiment, and details of this embodiment are not repeated herein.
When the voltage of the outlet pressing plate to be measured is measured through the measuring unit, the operation can be carried out only by one hand, and the contact of the first end or the second end and the grounding wire is controlled by two hands, so that the measurement of the outlet pressing plate to be measured is easier to operate. And the measured voltage is transmitted to the control module, and the control module controls the display module to display the measured voltage, so that the reading of operators is facilitated.
Example four
Fig. 5 is a schematic structural diagram of a measurement indication apparatus of a relay pressure maintaining plate according to a fourth embodiment of the present invention, and referring to fig. 5, optionally, the measurement indication apparatus of the relay pressure maintaining plate further includes an operation panel 500, the operation panel 500 is electrically connected to the control module 200, the operation panel 500 includes a plurality of input units, and the control module 200 is configured to enter a corresponding operating mode according to input actions of the input units.
Specifically, when the control module 200 includes the processing unit 210, the operation panel 500 is electrically connected to the processing unit 210. Optionally, the input unit may be a key, and when the key is pressed by an external force, the input unit may be considered to receive an input action, and the control module 200 enters the corresponding operating mode according to the input action of the input unit.
With continued reference to fig. 5, optionally, the plurality of input units includes a first input unit 510, a second input unit 520, a third input unit 530, a fourth input unit 540, and a fifth input unit 550;
the control module 200 is configured to enter a pressing plate identification mode according to an input action of the first input unit 510, and identify the relay pressure protection plate to be detected according to the identification information of the relay pressure protection plate to be detected, which is acquired by the image acquisition module 300;
the control module 200 is configured to enter a platen measurement mode according to an input action of the second input unit 520, and obtain a voltage at a first end and a voltage at a second end of the outlet platen to be measured, which are measured by the measurement module 100;
the control module 200 is configured to enter a pressure plate library selection mode according to an input action of the third input unit 530, and select a database corresponding to the relay pressure plate to be tested according to the identification information of the relay pressure plate to be tested;
the control module 200 is configured to enter a pressing plate determination mode according to an input action of the fourth input unit 540, and determine an input determination result of the outlet pressing plate to be tested according to pre-stored data information of the outlet pressing plate to be tested, a voltage of the first end of the outlet pressing plate to be tested, and a voltage of the second end of the outlet pressing plate to be tested;
the control module 200 is configured to enter a shutdown mode according to an input action of the fifth input unit 550.
The input unit may be a key, the first input unit 510 may be a key 1, the second input unit 520 may be a key 2, the third input unit 530 may be a key 3, the fourth input unit 540 may be a key 4, the fifth input unit 550 may be a key 5, and the operation panel may further include a sixth input unit and a seventh input unit, the sixth input unit may be a confirmation key, and the seventh input unit may be a cancel key.
When the control module 200 acquires that the key 1 receives an input action, it enters a pressing plate identification mode. In the pressing plate identification mode, the image acquisition module 300 acquires identification information of the relay pressure maintaining plate to be detected, the control module determines the name and the type of the relay pressure maintaining plate to be detected according to the identification information of the relay pressure maintaining plate to be detected, and the display module 400 can be controlled to display the name and the type of the relay pressure maintaining plate to be detected. When the relay pressure maintaining plate to be tested displayed by the display module 400 is the outlet pressure plate to be tested, the operator may apply an external force to the key 2, the control module 200 enters the pressure plate measuring mode when the control module obtains that the key 2 receives an input action, and the measuring unit 110 measures the voltage at the first end and the voltage at the second end of the outlet pressure plate to be tested, and transmits the voltages to the control module 200. When the control module 200 acquires that the key 3 receives an input action, the pressing plate library selection mode is entered, and the pressing plate library corresponding to the outlet pressing plate to be detected is selected. When the control module 200 acquires that the key 4 receives an input action, the control module 200 enters a pressing plate judgment mode, determines an input judgment result of the outlet pressing plate to be detected according to data information of the outlet pressing plate to be detected, which is pre-stored in the selected pressing plate library, the voltage of the first end of the outlet pressing plate to be detected and the voltage of the second end of the outlet pressing plate to be detected, and controls the display module 400 to display the input judgment result. And the operator can determine whether to put the outlet pressing plate to be tested into the system according to the input judgment result. When the control module 200 acquires that the key 5 receives an input action, the control module controls the measurement indicating device of the pressure maintaining plate to be shut down.
With reference to fig. 5, optionally, the to-be-tested relay pressure maintaining plate further includes a to-be-tested functional pressure plate, and the control module 200 is configured to determine, according to the identification information of the to-be-tested relay pressure maintaining plate acquired by the image acquiring module 300, that the name and the type of the to-be-tested relay pressure maintaining plate are the to-be-tested functional pressure plate, and control the display module 400 to display the type and the name of the to-be-tested relay pressure maintaining plate.
When the control module 200 determines the name of the to-be-detected relay pressure maintaining plate and the to-be-detected relay pressure maintaining plate is the to-be-detected functional pressure maintaining plate according to the identification information of the to-be-detected relay pressure maintaining plate acquired by the image acquisition module 300, the control display module 400 displays the type and the name of the to-be-detected relay pressure maintaining plate. When the operator determines that the relay protection pressing plate to be tested is the functional pressing plate to be tested according to the information displayed by the display module 400, the functional pressing plate to be tested can be directly put into operation without measuring voltage.
EXAMPLE five
Fig. 6 is a flowchart of a measurement indication method for a secondary pressure maintaining plate according to a fifth embodiment of the present invention, where the method is applicable to a case where a secondary pressure maintaining plate to be measured is put into use, and may be executed by a measurement indication device of the secondary pressure maintaining plate, and referring to fig. 6, the measurement indication method for the secondary pressure maintaining plate includes:
s10: the image acquisition module acquires identification information of the relay pressure maintaining plate to be detected; the relay pressure maintaining plate to be tested comprises an outlet pressure plate to be tested;
s20: the measuring module respectively measures the voltage of the first end and the voltage of the second end of the outlet pressure plate to be measured;
s30: the control module determines an input judgment result of the outlet pressing plate to be tested according to prestored data information of the outlet pressing plate to be tested, the voltage of the first end of the outlet pressing plate to be tested and the voltage of the second end of the outlet pressing plate to be tested, wherein the input judgment result comprises input and non-input;
optionally, the first end of the outlet pressure plate to be tested is connected with a first power supply, the second end of the outlet pressure plate to be tested is connected with a second power supply, the voltage output by the first power supply is a positive voltage, and the voltage output by the second power supply is a negative voltage;
the control module determines that the input judgment result of the outlet pressing plate to be measured is input when the voltage of the first end of the outlet pressing plate to be measured, measured by the measuring module, is zero and the voltage of the second end of the outlet pressing plate to be measured is a negative value;
when the voltage of the first end of the outlet pressing plate to be measured, which is measured by the measuring module, is a positive value and the voltage of the second end is a negative value, the control module determines that the input judgment result of the outlet pressing plate to be measured is that the outlet pressing plate to be measured cannot be input; or when the voltage of the first end of the outlet pressing plate to be measured, which is measured by the measuring module, is zero and the voltage of the second end is zero, the control module determines that the input judgment result of the outlet pressing plate to be measured is that the outlet pressing plate to be measured cannot be input; or when the voltage of the first end of the outlet pressing plate to be measured, which is measured by the measuring module, is a positive value and the voltage of the second end is a positive value, the control module determines that the input judgment result of the outlet pressing plate to be measured is that the outlet pressing plate to be measured cannot be input.
S40: and the display module displays the input judgment result of the outlet pressing plate to be tested.
The measurement indication method of the relay protection pressing plate provided by the embodiment can avoid the mistaken throwing of the outlet pressing plate to be measured caused by the deviation of the relevant knowledge memorized by the operating personnel when the outlet pressing plate to be measured is thrown in by the operating personnel, improve the accuracy of the throwing of the pressing plate to be measured and ensure the safe operation of the transformer substation.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A measurement indicating device of a relay pressure maintaining plate is characterized by comprising a measurement module, a control module, an image acquisition module and a display module;
the image acquisition module is electrically connected with the control module and is used for acquiring the identification information of the relay pressure maintaining plate to be detected, and the relay pressure maintaining plate to be detected comprises an outlet pressure plate to be detected;
the measuring module is electrically connected with the control module and is used for measuring the voltage of the first end and the voltage of the second end of the outlet pressing plate to be measured respectively;
the control module is used for determining an input judgment result of the outlet pressing plate to be tested according to prestored data information of the outlet pressing plate to be tested, the voltage of the first end of the outlet pressing plate to be tested and the voltage of the second end of the outlet pressing plate to be tested, and the input judgment result comprises input and non-input;
the display module is electrically connected with the control module and is used for displaying the input judgment result of the outlet pressing plate to be tested.
2. The measurement indicating device of the relay pressure maintaining plate as claimed in claim 1, wherein a first end of the outlet pressure plate to be measured is connected to a first power supply, a second end of the outlet pressure plate to be measured is connected to a second power supply, a voltage output by the first power supply is a positive voltage, and a voltage output by the second power supply is a negative voltage;
the control module is used for determining that the input judgment result of the outlet pressing plate to be measured is input when the voltage of the first end of the outlet pressing plate to be measured, measured by the measuring module, is zero and the voltage of the second end of the outlet pressing plate to be measured is a negative value;
the control module is used for determining that the input judgment result of the outlet pressing plate to be measured is unavailable when the voltage of the first end of the outlet pressing plate to be measured, which is measured by the measuring module, is a positive value and the voltage of the second end of the outlet pressing plate to be measured is a negative value; or the control module is used for determining that the input judgment result of the outlet pressing plate to be measured is non-input when the voltage of the first end of the outlet pressing plate to be measured, measured by the measuring module, is zero and the voltage of the second end of the outlet pressing plate to be measured is zero; or the control module is used for determining that the input judgment result of the outlet pressing plate to be measured is unavailable when the voltage of the first end of the outlet pressing plate to be measured, which is measured by the measuring module, is a positive value and the voltage of the second end of the outlet pressing plate to be measured is a positive value.
3. The measurement indicating device of the relay pressure maintaining plate according to claim 1, further comprising an operation panel electrically connected to the control module, wherein the operation panel comprises a plurality of input units, and the control module is configured to enter a corresponding operating mode according to an input action of the input units.
4. The measurement indication device of a relay pressure maintaining plate according to claim 3, wherein the plurality of input units include a first input unit, a second input unit, a third input unit, a fourth input unit, and a fifth input unit;
the control module is used for entering a pressing plate identification mode according to the input action of the first input unit and identifying the relay pressure-maintaining plate to be detected according to the identification information of the relay pressure-maintaining plate to be detected, which is acquired by the image acquisition module;
the control module is used for entering a pressure plate measuring mode according to the input action of the second input unit and acquiring the voltage of the first end and the voltage of the second end of the outlet pressure plate to be measured, which are measured by the measuring module;
the control module is used for entering a pressure plate library selection mode according to the input action of the third input unit and selecting a database corresponding to the relay pressure maintaining plate to be detected according to the identification information of the relay pressure maintaining plate to be detected;
the control module is used for entering a pressing plate judging mode according to the input action of the fourth input unit and determining the input judging result of the outlet pressing plate to be detected according to the prestored data information of the outlet pressing plate to be detected, the voltage of the first end of the outlet pressing plate to be detected and the voltage of the second end of the outlet pressing plate to be detected;
and the control module is used for entering a shutdown mode according to the input action of the fifth input unit.
5. The measurement indicating device of the relay pressure maintaining plate according to claim 1, wherein the measurement module comprises a measurement unit, a gear adjustment unit and a signal conversion unit;
the measuring unit is used for connecting the testing end of the outlet pressing plate to be tested and the grounding wire, and the testing end of the outlet pressing plate to be tested is the first end or the second end of the outlet pressing plate to be tested;
the gear adjusting unit is electrically connected with the measuring unit and is used for adjusting the measuring gear of the measuring unit;
one end of the signal conversion unit is electrically connected with the gear adjusting unit, the other end of the signal conversion unit is electrically connected with the control module, and the signal conversion unit is used for converting the voltage signal measured by the measuring unit into an input signal which can be recognized by the control module.
6. The device for indicating measurement of a relay protection pressure plate according to claim 5, wherein the measuring unit comprises a stylus and a grounding clip, the stylus is used for connecting the testing end of the outlet pressure plate to be tested, and the grounding clip is used for connecting the grounding wire.
7. The measurement and indication device of the relay pressure maintaining plate as claimed in claim 5, wherein the signal conversion unit comprises a photoelectric isolator.
8. The measurement indication device of the relay pressure maintaining plate according to claim 1, wherein the control module comprises a processing unit and a storage unit, and the processing unit is electrically connected with the measurement module, the image acquisition module, the display module and the storage unit respectively;
the storage unit is used for pre-storing data information of a plurality of outlet pressing plates, and the data information of the outlet pressing plates comprises the data information of the outlet pressing plate to be detected.
9. The measurement indicating device of the relay protection pressure plate as claimed in claim 1, wherein the relay protection pressure plate to be tested further comprises a function pressure plate to be tested, the control module is configured to determine that the name and the type of the relay protection pressure plate to be tested are the function pressure plate to be tested according to the identification information of the relay protection pressure plate to be tested, which is acquired by the image acquisition module, and control a display module to display the type and the name of the relay protection pressure plate to be tested.
10. A measurement indication method of a relay pressure maintaining plate is characterized by comprising the following steps:
the image acquisition module acquires identification information of the relay pressure maintaining plate to be detected; the relay pressure maintaining plate to be tested comprises an outlet pressure plate to be tested;
the measuring module measures the voltage of the first end and the voltage of the second end of the outlet pressing plate to be measured respectively;
the control module determines an input judgment result of the outlet pressing plate to be tested according to prestored data information of the outlet pressing plate to be tested, the voltage of the first end of the outlet pressing plate to be tested and the voltage of the second end of the outlet pressing plate to be tested, wherein the input judgment result comprises input and non-input;
and the display module displays the input judgment result of the outlet pressing plate to be tested.
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