CN111983297A - Instantaneous residual voltage detection method, device and equipment and residual voltage recording assembly - Google Patents
Instantaneous residual voltage detection method, device and equipment and residual voltage recording assembly Download PDFInfo
- Publication number
- CN111983297A CN111983297A CN202010851490.1A CN202010851490A CN111983297A CN 111983297 A CN111983297 A CN 111983297A CN 202010851490 A CN202010851490 A CN 202010851490A CN 111983297 A CN111983297 A CN 111983297A
- Authority
- CN
- China
- Prior art keywords
- residual voltage
- target circuit
- signal
- recording
- instantaneous
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
- G01R19/2503—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques for measuring voltage only, e.g. digital volt meters (DVM's)
Abstract
The invention discloses an instantaneous residual voltage detection method, which comprises the steps of receiving an action signal, wherein the action signal comprises target circuit information; determining a corresponding residual voltage recording component according to the action signal; obtaining a residual voltage recording signal from the residual voltage recording component; determining whether historical residual voltage exists in a target circuit corresponding to the target circuit information according to the residual voltage recording signal; and when the target circuit has historical residual voltage, sending a locking signal to a locking component to enable the target circuit to be locked reversely, and completing the residual voltage detection of the target circuit. The invention sets residual voltage recording component on the line, and judges whether the residual voltage is existed in the line or not according to the residual voltage recording signal, thereby solving the problem of quickly judging whether the residual voltage exists in the circuit or not and further completing the reverse locking. The invention also provides an instantaneous residual voltage detection device, equipment, a computer readable storage medium and a residual voltage recording assembly with the beneficial effects.
Description
Technical Field
The invention relates to the field of circuit fault detection, in particular to an instantaneous residual voltage detection method, an instantaneous residual voltage detection device, instantaneous residual voltage detection equipment, a computer-readable storage medium and a residual voltage recording assembly.
Background
At present, in the field of domestic distribution automation, the feeder automation technology is developed very rapidly, and in the feeder automation of an in-situ overlapping mode, a distribution terminal realizes reverse closing and locking by detecting instantaneous residual voltage, and the function is particularly critical. Residual voltage in a circuit can damage electrical elements, if the reason that the residual voltage appears cannot be found in time and solved through troubleshooting, the service life of the circuit can be greatly influenced, serious potential safety hazards can be caused over time, in order to improve the reliability of power supply to the maximum extent, faults must be rapidly positioned and fault areas must be isolated, however, feeder terminals in some areas do not have backup power sources or the CPU starting time of the terminals is too long, when the circuit has short-circuit faults, after power failure, the terminals cannot detect residual voltage signals, next switching-on is caused on fault points, and fault isolation cannot be achieved
In other words, a problem to be solved by those skilled in the art is how to solve the problem that the existing feeder automation technology cannot quickly determine whether there is residual voltage in the circuit, thereby completing the reverse latch logic function.
Disclosure of Invention
The invention aims to provide a method, a device and equipment for detecting instantaneous residual voltage, a computer readable storage medium and a residual voltage recording component, which are used for solving the problem that the prior art cannot quickly judge whether residual voltage exists in a circuit so as to finish a reverse latching logic function.
In order to solve the above technical problem, the present invention provides an instantaneous residual voltage detection method, including:
receiving an action signal, wherein the action signal comprises target circuit information;
determining a corresponding residual voltage recording component according to the action signal;
obtaining a residual voltage recording signal from the residual voltage recording component;
determining whether historical residual voltage exists in a target circuit corresponding to the target circuit information according to the residual voltage recording signal;
and when the target circuit has historical residual voltage, sending a locking signal to a locking component to enable the target circuit to be locked reversely, and completing the residual voltage detection of the target circuit.
Optionally, in the transient residual voltage detecting method, the obtaining a residual voltage recording signal from the residual voltage recording component includes:
and acquiring a residual voltage recording signal from the residual voltage recording component, wherein the residual voltage recording signal comprises residual voltage time information.
Optionally, in the instant residual voltage detecting method, after obtaining a residual voltage recording signal from the residual voltage recording component, the method further includes:
and sending the residual voltage recording signal to a superior server for storage.
Optionally, in the instantaneous residual voltage detecting method, after determining whether there is a historical residual voltage in the target circuit corresponding to the target circuit information according to the residual voltage recording signal, the method further includes:
and when the historical residual voltage exists in the target circuit, sending a fault signal to an alarm terminal to enable the alarm terminal to send out an alarm.
An instantaneous residual voltage detecting apparatus comprising:
the receiving module is used for receiving an action signal, and the action signal comprises target circuit information;
the selecting module is used for determining a corresponding residual voltage recording component according to the action signal;
the acquisition module is used for acquiring a residual voltage recording signal from the residual voltage recording component;
the judging module is used for determining whether historical residual voltage exists in a target circuit corresponding to the target circuit information according to the residual voltage recording signal;
and the locking module is used for sending a locking signal to the locking component when the historical residual voltage exists in the target circuit, so that the target circuit is locked reversely, and the residual voltage detection of the target circuit is completed.
An instantaneous residual voltage detecting apparatus comprising:
a memory for storing a computer program;
a processor for implementing the steps of the instantaneous residual voltage detection method as described in any one of the above when executing the computer program.
A computer-readable storage medium having stored thereon a computer program which, when being executed by a processor, carries out the steps of the transient residual voltage detection method as claimed in any one of the above.
A residual voltage recording assembly comprises a rectifier, a filter, a DC-DC voltage stabilizer and an energy storage device;
the rectifier is used for rectifying residual voltage to be recorded to obtain direct-current residual voltage;
the filter is used for filtering the direct current residual voltage to obtain residual voltage to be converted;
the DC-DC voltage stabilizer is used for performing voltage conversion on the residual voltage to be converted to obtain an excitation voltage of a preset voltage;
and the energy storage device is converted into an excitation state from an idle state after receiving the excitation voltage, and transmits a residual voltage recording signal after receiving a residual voltage detection signal, and is converted into the idle state from the excitation state.
Optionally, in the residual voltage recording assembly, the energy storage device is a magnetic latching relay.
Optionally, in the residual voltage recording assembly, the residual voltage recording assembly further includes an interference suppressor;
the anti-interference device is used for eliminating interference signals generated when a target circuit is switched on and switched off, and the interference signals are prevented from being judged as the residual voltage to be recorded by mistake.
Optionally, in the residual voltage recording assembly, the energy storage device is a magnetic latching relay.
The invention provides a method for detecting instantaneous residual voltage, which comprises the steps of receiving an action signal, wherein the action signal comprises target circuit information; determining a corresponding residual voltage recording component according to the action signal; obtaining a residual voltage recording signal from the residual voltage recording component; determining whether historical residual voltage exists in a target circuit corresponding to the target circuit information according to the residual voltage recording signal; and when the target circuit has historical residual voltage, sending a locking signal to a locking component to enable the target circuit to be locked reversely, and completing the residual voltage detection of the target circuit. According to the invention, the residual voltage recording component is arranged on the circuit, the residual voltage recording signal is obtained from the corresponding residual voltage recording component after the action signal is received, and whether the residual voltage is generated in the circuit once or not is judged through the residual voltage recording signal, so that the problem of automatic detection of instantaneous residual voltage is solved, meanwhile, the automatic reverse locking function is realized, the fault removing efficiency is greatly improved, and the service life of the circuit is prolonged. The invention also provides an instantaneous residual voltage detection device, equipment, a computer readable storage medium and a residual voltage recording assembly with the beneficial effects.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic flow chart of an embodiment of a method for detecting an instantaneous residual voltage according to the present invention;
FIG. 2 is a schematic flow chart of another embodiment of the instantaneous residual voltage detection method provided by the present invention;
FIG. 3 is a schematic structural diagram of an embodiment of an instantaneous residual voltage detection apparatus according to the present invention;
FIG. 4 is a schematic structural diagram of an embodiment of a residual voltage recording assembly according to the present invention;
fig. 5 to 10 are circuit diagrams of respective components of an embodiment of the residual voltage recording assembly provided in the present invention.
Detailed Description
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The core of the present invention is to provide a method for detecting an instantaneous residual voltage, wherein a flow diagram of a specific embodiment thereof is shown in fig. 1, which is called a first specific embodiment thereof, and the method comprises the following steps:
s101: an action signal is received, the action signal including target circuit information.
S102: and determining a corresponding residual voltage recording component according to the action signal.
S103: and acquiring a residual voltage recording signal from the residual voltage recording component.
As a specific implementation manner, the residual voltage detection signal may be sent to the residual voltage recording component, and the residual voltage recording component returns the residual voltage recording signal to complete the acquisition.
S104: and determining whether historical residual voltage exists in a target circuit corresponding to the target circuit information according to the residual voltage recording signal.
S105: and when the target circuit has historical residual voltage, sending a locking signal to a locking component to enable the target circuit to be locked reversely, and completing the residual voltage detection of the target circuit.
The invention provides a method for detecting instantaneous residual voltage, which comprises the steps of receiving an action signal, wherein the action signal comprises target circuit information; determining a corresponding residual voltage recording component according to the action signal; obtaining a residual voltage recording signal from the residual voltage recording component; determining whether historical residual voltage exists in a target circuit corresponding to the target circuit information according to the residual voltage recording signal; and when the target circuit has historical residual voltage, sending a locking signal to a locking component to enable the target circuit to be locked reversely, and completing the residual voltage detection of the target circuit. According to the invention, the residual voltage recording component is arranged on the circuit, the residual voltage recording signal is obtained from the corresponding residual voltage recording component after the action signal is received, and whether the residual voltage is generated in the circuit once or not is judged through the residual voltage recording signal, so that the problem of automatic detection of instantaneous residual voltage is solved, meanwhile, the automatic reverse locking function is realized, the fault removing efficiency is greatly improved, and the service life of the circuit is prolonged.
On the basis of the first specific embodiment, the step after the residual voltage recording signal is obtained is further improved to obtain a second specific embodiment, a flow chart of which is shown in fig. 2, and the method includes:
s201: an action signal is received, the action signal including target circuit information.
S202: and determining a corresponding residual voltage recording component according to the action signal.
S203: and acquiring a residual voltage recording signal from the residual voltage recording component, wherein the residual voltage recording signal comprises residual voltage time information.
S204: and sending the residual voltage recording signal to a superior server for storage.
S205: and determining whether historical residual voltage exists in the target circuit corresponding to the target circuit information according to the residual voltage recording signal.
S206: and when the target circuit has historical residual voltage, sending a locking signal to a locking component to enable the target circuit to be locked reversely, and completing the residual voltage detection of the target circuit.
The difference between this embodiment and the above embodiment is that the content of the residual voltage recording signal and subsequent processing measures for the residual voltage recording signal are further defined in this embodiment, and the remaining steps are the same as those in the above embodiment, and are not described herein again.
In the specific embodiment, the residual voltage recording signal is limited to contain yes or no information and also comprises the occurrence time of the residual voltage, so that the occurrence time of faults is shortened for workers, the fault troubleshooting range is further shortened, and the overhauling efficiency is greatly improved.
In the following, the instantaneous residual voltage detection apparatus provided by the embodiment of the present invention is introduced, and the instantaneous residual voltage detection apparatus described below and the instantaneous residual voltage detection method described above may be referred to correspondingly.
Fig. 3 is a block diagram of an instantaneous residual voltage detection apparatus according to an embodiment of the present invention, which is referred to as a third embodiment, and referring to fig. 3, the instantaneous residual voltage detection apparatus may include:
a receiving module 100, configured to receive an action signal, where the action signal includes target circuit information;
a selecting module 200, configured to determine a corresponding residual voltage recording component according to the action signal;
an obtaining module 300, configured to obtain a residual voltage recording signal from the residual voltage recording component;
a judging module 400, configured to determine whether there is a historical residual voltage in a target circuit corresponding to the target circuit information according to the residual voltage recording signal;
and the latching module 500 is configured to send a latching signal to a latching component when the target circuit has a historical residual voltage, so that the target circuit is latched reversely, and the residual voltage detection of the target circuit is completed.
As a preferred embodiment, the obtaining module 300 includes:
and the time information acquisition unit is used for acquiring residual voltage recording signals from the residual voltage recording component, and the residual voltage recording signals comprise residual voltage time information.
As a preferred embodiment, the obtaining module 300 further includes:
and the uplink unit is used for sending the residual voltage recording signal to a superior server for storage.
As a preferred implementation manner, the determining module 400 further includes:
and the alarm sending unit is used for sending a fault signal to an alarm terminal to enable the alarm terminal to send out an alarm when the target circuit has historical residual voltage.
The instantaneous residual voltage detection device provided by the invention is used for receiving an action signal through a receiving module 100, wherein the action signal comprises target circuit information; a selecting module 200, configured to determine a corresponding residual voltage recording component according to the action signal; an obtaining module 300, configured to obtain a residual voltage recording signal from the residual voltage recording component; a judging module 400, configured to determine whether there is a historical residual voltage in a target circuit corresponding to the target circuit information according to the residual voltage recording signal; and the latching module 500 is configured to send a latching signal to a latching component when the target circuit has a historical residual voltage, so that the target circuit is latched reversely, and the residual voltage detection of the target circuit is completed. According to the invention, the residual voltage recording component is arranged on the circuit, the residual voltage recording signal is obtained from the corresponding residual voltage recording component after the action signal is received, and whether the residual voltage is generated in the circuit once or not is judged through the residual voltage recording signal, so that the problem of automatic detection of instantaneous residual voltage is solved, meanwhile, the automatic reverse locking function is realized, the fault removing efficiency is greatly improved, and the service life of the circuit is prolonged.
The instantaneous residual voltage detection apparatus of this embodiment is used to implement the aforementioned instantaneous residual voltage detection method, and therefore, specific implementations of the instantaneous residual voltage detection apparatus can be seen in the foregoing embodiments of the instantaneous residual voltage detection method, for example, the receiving module 100, the selecting module 200, the obtaining module 300, the determining module 400, and the locking module 500 are respectively used to implement steps S101, S102, S103, S104, and S105 in the aforementioned instantaneous residual voltage detection method, so that specific implementations thereof may refer to descriptions of corresponding partial embodiments, and are not repeated herein.
In addition, the present invention also provides an instantaneous residual voltage detection apparatus, comprising:
a memory for storing a computer program;
a processor for implementing the steps of the instantaneous residual voltage detection method as described in any one of the above when executing the computer program. The invention provides a method for detecting instantaneous residual voltage, which comprises the steps of receiving an action signal, wherein the action signal comprises target circuit information; determining a corresponding residual voltage recording component according to the action signal; obtaining a residual voltage recording signal from the residual voltage recording component; determining whether historical residual voltage exists in a target circuit corresponding to the target circuit information according to the residual voltage recording signal; and when the target circuit has historical residual voltage, sending a locking signal to a locking component to enable the target circuit to be locked reversely, and completing the residual voltage detection of the target circuit. According to the invention, the residual voltage recording component is arranged on the circuit, the residual voltage recording signal is obtained from the corresponding residual voltage recording component after the action signal is received, and whether the residual voltage is generated in the circuit once or not is judged through the residual voltage recording signal, so that the problem of automatic detection of instantaneous residual voltage is solved, meanwhile, the automatic reverse locking function is realized, the fault removing efficiency is greatly improved, and the service life of the circuit is prolonged.
Furthermore, the present invention also provides a computer-readable storage medium having a computer program stored thereon, which, when being executed by a processor, implements the steps of the transient residual voltage detection method as described in any one of the above. The invention provides a method for detecting instantaneous residual voltage, which comprises the steps of receiving an action signal, wherein the action signal comprises target circuit information; determining a corresponding residual voltage recording component according to the action signal; obtaining a residual voltage recording signal from the residual voltage recording component; determining whether historical residual voltage exists in a target circuit corresponding to the target circuit information according to the residual voltage recording signal; and when the target circuit has historical residual voltage, sending a locking signal to a locking component to enable the target circuit to be locked reversely, and completing the residual voltage detection of the target circuit. According to the invention, the residual voltage recording component is arranged on the circuit, the residual voltage recording signal is obtained from the corresponding residual voltage recording component after the action signal is received, and whether the residual voltage is generated in the circuit once or not is judged through the residual voltage recording signal, so that the problem of automatic detection of instantaneous residual voltage is solved, meanwhile, the automatic reverse locking function is realized, the fault removing efficiency is greatly improved, and the service life of the circuit is prolonged.
The invention also provides a residual voltage recording assembly, a structure diagram of one specific embodiment of which is shown in fig. 4, which is called as a fourth specific embodiment, and comprises a rectifier 10, a filter 20, a DC-DC regulator 30 and an energy storage 40;
the rectifier 10 is used for rectifying residual voltage to be recorded to obtain direct-current residual voltage;
the filter 20 is configured to filter the dc residual voltage to obtain a to-be-converted residual voltage;
the DC-DC voltage stabilizer 30 is configured to perform voltage conversion on the residual voltage to be converted to obtain an excitation voltage of a preset voltage;
the energy storage device 40 is switched from an idle state to an excited state after receiving the excitation voltage, and transmits a residual voltage recording signal after receiving a residual voltage detection signal, and is switched from the excited state to the idle state.
In addition, the energy storage device 40 is a magnetic latching relay; the power consumption required by the magnetic latching relay is low, so that the power consumption of the whole assembly can be guaranteed to be low.
Fig. 5 is a partial circuit diagram of the residual voltage recording assembly provided by the present invention, and the adopted transformation ratio is 120V: the power consumption of the transformer when 30% UN is input into the transformer of 20V must meet the requirement of driving the magnetic latching relay, the voltage on the secondary side of the transformer is input into a DC-DC conversion signal U1(LM2596T-5.0, the voltage input range is 7V-40V, the output fixed voltage is 5V) through a normally closed node of a latching relay K1 after filtering (the voltage range is 7V-28V after rectification and filtering) through a rectifier 10D2(KBP206), and 5V stabilized voltage is obtained through voltage conversion and used for driving the magnetic latching relay K2.
It should be noted that, since the energy storage device 40 of the residual voltage recording component is only in the activated state capable of actively sending signals when recording the residual voltage, if the external system sends a residual voltage detection signal to the residual voltage recording component but the residual voltage is not recorded in the residual voltage recording component, the residual voltage recording signal is a zero signal, that is, the residual voltage recording component does not respond.
It should be noted that, when the energy storage device 40 is a magnetic latching relay, after the sending of the residual voltage recording signal is completed each time, a residual voltage return circuit is further required to help the magnetic latching relay reset, and a specific implementation manner of the residual voltage return circuit is that after the device is powered on and detects a residual voltage signal BS _ a, the device sends a reverse latching signal, so that the switch is successfully prevented from being switched on to a fault line. Then the CPU sends a RESET signal RESET _ A signal to RESET the magnetic latching relay K2, and the CPU sends CY _ BS low level to RESET the K1 relay for detecting the residual voltage signal next time.
As a preferred embodiment, the residual voltage recording component further comprises an interference suppressor;
the anti-interference device is used for eliminating interference signals generated when a target circuit is switched on and switched off, and the interference signals are prevented from being judged as the residual voltage to be recorded by mistake.
For example, as shown in fig. 6, the anti-jammer may be composed of a comparison circuit and a delay circuit, the comparison circuit and the delay circuit may be part of a voltage monitoring chip U2 (which may be BD5345), when the residual voltage to be recorded enters the rectifier 10 and the filter 20, VDD of the voltage monitoring chip is connected to the DC-DC input end through a resistor, a voltage regulator V6(MMSZ5233/6V) is connected between VDD of U2 and GND to protect the voltage monitoring chip U2, a voltage output from VOUT is connected to a base of a three-pole terminal Q1 through a resistor to conduct a three-pole terminal Q1(1N8050) to drive a working coil of a magnetic latching relay K2 to operate, in the diagram, B, E, C are three poles of the three poles, and GND represents a ground line. By changing the capacitance value of the capacitor C8 at the CT end of the U2, specifically less than 1 nanofarad, including end point values, the obtained duration is less than or equal to 40ms, which is far superior to 80ms proposed in the detection outline; the working range of the anti-interference device can be greatly expanded, and the anti-interference capability of the residual voltage recording assembly is improved.
The delay time calculation method is (refer to the data manual of BD 5345):
TPLH＝-CCT*RCT*Ln((VDD-VCTH)/VDD)；
wherein: cCTThe capacitance value of an external capacitor connected with the CT end; rCTIs the internal impedance of the CT terminal; vCTHIs the threshold voltage of the CT terminal; ln is a natural logarithm.
Fig. 7 is a circuit for detecting residual voltage signals, which is provided by the present invention, namely, the circuit is used to detect whether the residual voltage recording component sends the residual voltage recording signal (in this example, there is residual voltage to send 5V voltage, and there is no residual voltage to send the zero signal), when the working coil of the magnetic latching relay K2 acts, the normally closed node of K2 is turned off, and the normally open node is pulled in, because of its holding function, when the device is powered on, the residual voltage recording signal BS _ a can be detected.
Fig. 8 is a latching prohibition circuit provided by the present invention, which uses a latching relay K1, after the device is powered on and a residual voltage recording signal BS _ a is detected, a CPU (not shown in the figure) sends a latching signal CY _ BS to make its K1 relay operate, to open a normally closed node, to pull in a normally open node, and to further cut off an operating voltage G1_5V of a magnetic latching relay, thereby implementing a reverse latching function.
Fig. 9 shows a residual voltage resetting circuit provided by the present invention, wherein when the device is powered on and detects a residual voltage signal BS _ a, the device sends a reverse blocking signal to successfully avoid the switch from being switched on to a fault line. Then the CPU sends a RESET signal RESET _ a to RESET the magnetic latching relay K2, and the CPU sends a CY _ BS low level to RESET the K1 relay for detecting the residual voltage signal next time, note that the C terminal at the lower part of the circuit diagram in fig. 9 is connected to the C terminal of the triode in fig. 6.
Fig. 10 is a power conversion circuit provided in the present invention, which is used to charge the magnetic latching relay after receiving the excitation voltage.
All signals entering and exiting the processor are isolated by light, so that the accuracy of the signals is ensured, and system faults are avoided.
The residual voltage recording component provided by the invention comprises a rectifier 10, a filter 20, a DC-DC voltage stabilizer 30 and an energy storage 40; the rectifier 10 is used for rectifying residual voltage to be recorded to obtain direct-current residual voltage; the filter 20 is configured to filter the dc residual voltage to obtain a to-be-converted residual voltage; the DC-DC voltage stabilizer 30 is configured to perform voltage conversion on the residual voltage to be converted to obtain an excitation voltage of a preset voltage; the energy storage device 40 is switched from an idle state to an excited state after receiving the excitation voltage, and transmits a residual voltage recording signal after receiving a residual voltage detection signal, and is switched from the excited state to the idle state. The invention realizes the residual voltage recording under the condition of not needing an external power supply by taking the residual voltage to be recorded as the energy source of the residual voltage recording signal, thereby not only realizing the automation of the residual voltage recording, but also greatly saving the energy and reducing the working cost.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
It is to be noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The present invention provides a method, an apparatus, a device and a computer readable storage medium for detecting an instantaneous residual voltage, and a residual voltage recording assembly. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. An instantaneous residual voltage detection method is characterized by comprising the following steps:
receiving an action signal, wherein the action signal comprises target circuit information;
determining a corresponding residual voltage recording component according to the action signal;
obtaining a residual voltage recording signal from the residual voltage recording component;
determining whether historical residual voltage exists in a target circuit corresponding to the target circuit information according to the residual voltage recording signal;
and when the target circuit has historical residual voltage, sending a locking signal to a locking component to enable the target circuit to be locked reversely, and completing the residual voltage detection of the target circuit.
2. The instantaneous residual voltage detection method of claim 1, wherein said obtaining a residual voltage recording signal from said residual voltage recording component comprises:
and acquiring a residual voltage recording signal from the residual voltage recording component, wherein the residual voltage recording signal comprises residual voltage time information.
3. The instantaneous residual voltage detection method as claimed in claim 2, further comprising, after acquiring a residual voltage recording signal from said residual voltage recording component:
and sending the residual voltage recording signal to a superior server for storage.
4. The method for detecting an instantaneous residual voltage as claimed in claim 1, wherein after determining whether there is a historical residual voltage in the target circuit corresponding to the target circuit information according to the residual voltage recording signal, the method further comprises:
and when the historical residual voltage exists in the target circuit, sending a fault signal to an alarm terminal to enable the alarm terminal to send out an alarm.
5. An instantaneous residual voltage detection device, characterized by comprising:
the receiving module is used for receiving an action signal, and the action signal comprises target circuit information;
the selecting module is used for determining a corresponding residual voltage recording component according to the action signal;
the acquisition module is used for acquiring a residual voltage recording signal from the residual voltage recording component;
the judging module is used for determining whether historical residual voltage exists in a target circuit corresponding to the target circuit information according to the residual voltage recording signal;
and the locking module is used for sending a locking signal to the locking component when the historical residual voltage exists in the target circuit, so that the target circuit is locked reversely, and the residual voltage detection of the target circuit is completed.
6. An instantaneous residual voltage detection apparatus, characterized by comprising:
a memory for storing a computer program;
processor for implementing the steps of the method of transient residual voltage detection as claimed in any one of claims 1 to 4 when executing said computer program.
7. A computer-readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, carries out the steps of the instantaneous residual voltage detection method according to any one of claims 1 to 4.
8. A residual voltage recording assembly is characterized by comprising a rectifier, a filter, a DC-DC voltage stabilizer and an energy storage device;
the rectifier is used for rectifying residual voltage to be recorded to obtain direct-current residual voltage;
the filter is used for filtering the direct current residual voltage to obtain residual voltage to be converted;
the DC-DC voltage stabilizer is used for performing voltage conversion on the residual voltage to be converted to obtain an excitation voltage of a preset voltage;
and the energy storage device is converted into an excitation state from an idle state after receiving the excitation voltage, and transmits a residual voltage recording signal after receiving a residual voltage detection signal, and is converted into the idle state from the excitation state.
9. The residual voltage recording assembly according to claim 8, wherein the energy storage is a magnetic latching relay.
10. The residual voltage recording assembly according to claim 8, further comprising an interference rejection unit;
the anti-interference device is used for eliminating interference signals generated when a target circuit is switched on and switched off, and the interference signals are prevented from being judged as the residual voltage to be recorded by mistake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010851490.1A CN111983297B (en) | 2020-08-21 | 2020-08-21 | Instantaneous residual pressure detection method, device and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010851490.1A CN111983297B (en) | 2020-08-21 | 2020-08-21 | Instantaneous residual pressure detection method, device and equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111983297A true CN111983297A (en) | 2020-11-24 |
| CN111983297B CN111983297B (en) | 2023-09-08 |
Family
ID=73444145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010851490.1A Active CN111983297B (en) | 2020-08-21 | 2020-08-21 | Instantaneous residual pressure detection method, device and equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111983297B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112670964A (en) * | 2020-12-30 | 2021-04-16 | 深圳市科陆电子科技股份有限公司 | Residual voltage detection method and system for power distribution feeder terminal and storage medium |
| CN112952774A (en) * | 2021-02-23 | 2021-06-11 | 青岛鼎信通讯股份有限公司 | Instantaneous voltage reverse locking module based on power distribution terminal |
| CN114062973A (en) * | 2021-10-21 | 2022-02-18 | 南京瀚元科技有限公司 | In-situ feeder automation reverse blocking principle based on hardware detection residual voltage blocking and application method thereof |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87105152A (en) * | 1987-07-21 | 1988-07-13 | 吕崇圭 | TC triggers charging delay switch |
| CN2890936Y (en) * | 2006-04-30 | 2007-04-18 | 福建省方星电气有限公司 | Non-residual voltage online detection counter |
| CN101799487A (en) * | 2009-02-06 | 2010-08-11 | 华为技术有限公司 | Method and equipment for detecting power supply voltage fluctuation |
| CN202025366U (en) * | 2011-04-08 | 2011-11-02 | 中铁上海设计院集团有限公司 | Automatic substation operating data recording device |
| CN103647193A (en) * | 2013-12-17 | 2014-03-19 | 北京东方计量测试研究所 | Anti-interference energy saving socket |
| CN105137226A (en) * | 2015-07-30 | 2015-12-09 | 广东电网有限责任公司肇庆供电局 | Line grounding state detection and positioning device |
| CN205049647U (en) * | 2015-10-28 | 2016-02-24 | 刘倩婧 | Survival voltage safety warning system |
| CN106771545A (en) * | 2017-01-25 | 2017-05-31 | 江苏大烨智能电气股份有限公司 | A kind of intelligent identification Method of 10kV line short faults voltage |
| CN206331020U (en) * | 2016-08-12 | 2017-07-14 | 上海太矽电子科技有限公司 | The controllable undervoltage detection means of anti-interference delay |
| CN107132431A (en) * | 2016-02-26 | 2017-09-05 | 珠海格力电器股份有限公司 | Plug residual voltage test device and method of testing |
| CN108718109A (en) * | 2018-06-14 | 2018-10-30 | 河南华盛隆源电气有限公司 | A kind of line feed terminals and residual voltage module detection circuit |
| CN109116155A (en) * | 2018-08-31 | 2019-01-01 | 山东建筑大学 | A kind of distribution power automation terminal is tested automatically and feedback system |
| CN208580143U (en) * | 2018-04-24 | 2019-03-05 | 珠海博威智能电网有限公司 | A kind of residual voltage detecting device |
| CN109687592A (en) * | 2019-02-14 | 2019-04-26 | 国网山东省电力公司泰安供电公司 | Substation information display control method, device and electronic equipment |
| CN109709374A (en) * | 2019-01-21 | 2019-05-03 | 江苏金智科技股份有限公司 | A kind of residual voltage detection circuit |
| CN109842211A (en) * | 2019-03-04 | 2019-06-04 | 石家庄科林电气股份有限公司 | A kind of residual voltage detection method of residual voltage logging modle and automatic circuit formula line feed terminals |
| CN110954738A (en) * | 2019-12-18 | 2020-04-03 | 烟台科大正信电气有限公司 | Embedded feeder terminal residual voltage detection circuit |
-
2020
- 2020-08-21 CN CN202010851490.1A patent/CN111983297B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87105152A (en) * | 1987-07-21 | 1988-07-13 | 吕崇圭 | TC triggers charging delay switch |
| CN2890936Y (en) * | 2006-04-30 | 2007-04-18 | 福建省方星电气有限公司 | Non-residual voltage online detection counter |
| CN101799487A (en) * | 2009-02-06 | 2010-08-11 | 华为技术有限公司 | Method and equipment for detecting power supply voltage fluctuation |
| CN202025366U (en) * | 2011-04-08 | 2011-11-02 | 中铁上海设计院集团有限公司 | Automatic substation operating data recording device |
| CN103647193A (en) * | 2013-12-17 | 2014-03-19 | 北京东方计量测试研究所 | Anti-interference energy saving socket |
| CN105137226A (en) * | 2015-07-30 | 2015-12-09 | 广东电网有限责任公司肇庆供电局 | Line grounding state detection and positioning device |
| CN205049647U (en) * | 2015-10-28 | 2016-02-24 | 刘倩婧 | Survival voltage safety warning system |
| CN107132431A (en) * | 2016-02-26 | 2017-09-05 | 珠海格力电器股份有限公司 | Plug residual voltage test device and method of testing |
| CN206331020U (en) * | 2016-08-12 | 2017-07-14 | 上海太矽电子科技有限公司 | The controllable undervoltage detection means of anti-interference delay |
| CN106771545A (en) * | 2017-01-25 | 2017-05-31 | 江苏大烨智能电气股份有限公司 | A kind of intelligent identification Method of 10kV line short faults voltage |
| CN208580143U (en) * | 2018-04-24 | 2019-03-05 | 珠海博威智能电网有限公司 | A kind of residual voltage detecting device |
| CN108718109A (en) * | 2018-06-14 | 2018-10-30 | 河南华盛隆源电气有限公司 | A kind of line feed terminals and residual voltage module detection circuit |
| CN109116155A (en) * | 2018-08-31 | 2019-01-01 | 山东建筑大学 | A kind of distribution power automation terminal is tested automatically and feedback system |
| CN109709374A (en) * | 2019-01-21 | 2019-05-03 | 江苏金智科技股份有限公司 | A kind of residual voltage detection circuit |
| CN109687592A (en) * | 2019-02-14 | 2019-04-26 | 国网山东省电力公司泰安供电公司 | Substation information display control method, device and electronic equipment |
| CN109842211A (en) * | 2019-03-04 | 2019-06-04 | 石家庄科林电气股份有限公司 | A kind of residual voltage detection method of residual voltage logging modle and automatic circuit formula line feed terminals |
| CN110954738A (en) * | 2019-12-18 | 2020-04-03 | 烟台科大正信电气有限公司 | Embedded feeder terminal residual voltage detection circuit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112670964A (en) * | 2020-12-30 | 2021-04-16 | 深圳市科陆电子科技股份有限公司 | Residual voltage detection method and system for power distribution feeder terminal and storage medium |
| CN112952774A (en) * | 2021-02-23 | 2021-06-11 | 青岛鼎信通讯股份有限公司 | Instantaneous voltage reverse locking module based on power distribution terminal |
| CN114062973A (en) * | 2021-10-21 | 2022-02-18 | 南京瀚元科技有限公司 | In-situ feeder automation reverse blocking principle based on hardware detection residual voltage blocking and application method thereof |
| CN114062973B (en) * | 2021-10-21 | 2024-01-23 | 南京瀚元科技有限公司 | In-situ feeder automation reverse locking application method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111983297B (en) | 2023-09-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111983297A (en) | Instantaneous residual voltage detection method, device and equipment and residual voltage recording assembly | |
| US20180149688A1 (en) | Grounding detection apparatus, control method thereof and pool system | |
| JP4845910B2 (en) | Earth leakage breaker | |
| US10355523B2 (en) | Power distribution terminal capable of determining fault type and determination method thereof | |
| CN102263402B (en) | Over-current protection circuit and over-current protection method for DC power supply | |
| CN111239471B (en) | Commutation failure protection method and device, computer equipment and storage medium | |
| US20090141414A1 (en) | Protection circuit for electric power of a car | |
| JP2009177990A (en) | Switching power supply device and electric equipment using the same | |
| CN109342973B (en) | Direct current power supply input state monitoring circuit and system | |
| CN112952979A (en) | Low-voltage direct-current redundant power supply control system | |
| EP3128335B1 (en) | A method for detecting ground faults in a lvdc electric line and an electronic device thereof | |
| DE202012013720U1 (en) | Communication module for chargers of electric vehicles | |
| CN112067876B (en) | Automatic reset residual voltage pulse hardware detection circuit | |
| CN112670957A (en) | Vehicle-mounted DC/DC overcurrent diagnosis method and device and computer readable storage medium | |
| CN110716110A (en) | Electrical safety detection device, detection method and intelligent socket | |
| CN103904621A (en) | Current-limiting protection and short-circuit protection circuit with self-recovery function | |
| JP2009033789A (en) | Charging monitor | |
| CN210724175U (en) | Fault detection device based on high-frequency rectification module | |
| CN102156216B (en) | Method for discriminating magneting inrush current of direct current transmission converter transformer | |
| EP3422031B1 (en) | Power supply system and detection system for determining current imbalance and over-current states in dc-dc voltage converter | |
| CN111130072A (en) | Novel active protection device in direct current system | |
| CN113725813A (en) | Leakage protection method, device and equipment and leakage protection electric energy meter | |
| JP3388482B2 (en) | Earth leakage detection device | |
| CN113253153B (en) | Neutral line abnormity judgment method based on non-fault phase second harmonic component ratio | |
| CN111969556B (en) | Excitation inrush current judgment method and judgment device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |