CN110956779A - Safety warning method and device for switch cabinet and storage medium - Google Patents
Safety warning method and device for switch cabinet and storage medium Download PDFInfo
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- CN110956779A CN110956779A CN201911280235.XA CN201911280235A CN110956779A CN 110956779 A CN110956779 A CN 110956779A CN 201911280235 A CN201911280235 A CN 201911280235A CN 110956779 A CN110956779 A CN 110956779A
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- circuit breaker
- switch cabinet
- load voltage
- phase
- determining whether
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/04—Means for indicating condition of the switching device
Abstract
The invention discloses a safety warning method, a safety warning device and a storage medium for a switch cabinet, wherein the method comprises the following steps: when the switch cabinet runs, acquiring live parameters of the switch cabinet in real time, and determining whether the working state of the circuit breaker is abnormal or not and determining whether personnel mistakenly enter a live interval or not according to the live parameters; when the working state of the circuit breaker is abnormal, sending a fault signal to operation and maintenance personnel to repair the circuit breaker; when the personnel mistakenly enter the electrified interval, an alarm signal is sent out to remind the mistakenly entering personnel. The invention can remind operation and maintenance personnel to repair the circuit breaker in time when the circuit breaker has a fault, can determine whether personnel mistakenly enter the electrified interval according to the electrified parameters of the switch cabinet, and can remind the mistakenly entered personnel to exit the electrified interval so as to avoid personal accidents.
Description
Technical Field
The invention relates to the field of safety, in particular to a safety warning method and device for a switch cabinet and a storage medium.
Background
In a modern power system, five anti-misoperation functions are generally required for the operation of a switch cabinet, namely, the circuit breaker is prevented from being opened and closed by mistake; the isolating switch is prevented from being switched on and off under load; preventing the charged hanging (closing) of a grounding wire (a grounding switch); preventing power transmission with ground wire; prevent the wrong entering into the electrified interval.
At present, a mechanical and electronic double five-prevention locking system is generally arranged in a switch cabinet, however, because a circuit breaker fault or a person mistakenly enters a live interval still continuously occurs at present, equipment safety accidents and personal injury accidents can be generated under the above situations, and the safety accidents not only endanger the personal safety of related persons, but also influence the normal production order.
Disclosure of Invention
The invention mainly aims to provide a safety warning method, a safety warning device and a storage medium for a switch cabinet, and aims to solve the problem that equipment accidents and personal accidents caused by breaker failures or mistaken entry of personnel into a live interval in the switch cabinet are difficult to avoid.
In order to achieve the purpose, the invention provides a safety warning method for a switch cabinet, wherein the switch cabinet is provided with a circuit breaker, and the safety warning method comprises the following steps:
when the switch cabinet runs, acquiring live parameters of the switch cabinet in real time, and determining whether the working state of the circuit breaker is abnormal or not and determining whether personnel mistakenly enter a live interval or not according to the live parameters;
when the working state of the circuit breaker is abnormal, sending a fault signal to operation and maintenance personnel to repair the circuit breaker;
when the personnel mistakenly enter the electrified interval, an alarm signal is sent out to remind the mistakenly entering personnel.
Optionally, the step of acquiring the live parameters of the switch cabinet in real time and determining whether the working state of the circuit breaker is abnormal according to the live parameters includes:
detecting three-phase load voltage of the circuit breaker in real time and acquiring the opening and closing state of the circuit breaker;
and determining whether the working state of the circuit breaker is abnormal or not according to the three-phase load voltage and the opening and closing state of the circuit breaker.
Optionally, the step of detecting the three-phase load voltage of the circuit breaker in real time includes:
detecting the load voltage of each of the three phases of the circuit breaker in real time;
the step of determining whether the working state of the circuit breaker is abnormal or not according to the three-phase load voltage and the opening and closing state of the circuit breaker comprises the following steps:
determining whether the load voltage of each phase is zero and the circuit breaker is in a closed state;
when the load voltage of at least one phase is not zero and the circuit breaker is not in a closed state, determining that the circuit breaker has a division abnormity.
Optionally, after the step of determining whether the load voltage of each phase is zero and the circuit breaker is in the closed state, the method further includes:
and when the load voltage of at least one phase is zero and the circuit breaker is in a closed state, determining that the circuit breaker is abnormal in combination.
Optionally, the step of acquiring the live parameters of the switch cabinet in real time includes:
detecting the three-phase load voltage of the circuit breaker in real time and acquiring opening and closing information of a door body of the switch cabinet;
the step of determining whether the person mistakenly enters the electrified interval according to the electrified parameters comprises the following steps:
and determining whether the personnel mistakenly enter the electrified interval or not according to the three-phase load voltage of the circuit breaker and the opening and closing information of the door body.
Optionally, the step of determining whether a person mistakenly enters the electrified interval according to the three-phase load voltage of the circuit breaker and the opening and closing information of the door body includes:
determining whether the load voltage of each phase of the circuit breaker is zero or not and determining whether the door body is in an open state or not according to the opening and closing information of the door body;
and when the load voltage of at least one phase is not zero and the door body is in an open state, determining that the person mistakenly enters the electrified interval.
Optionally, the switch cabinet includes a plurality of door bodies, and the step of determining whether the load voltage of each phase of the circuit breaker is zero and determining whether the door body is in an open state according to the opening and closing information of the door body includes:
determining whether the load voltage of each phase of the circuit breaker is zero or not and determining whether the corresponding door body is in an open state or not according to the opening and closing information of each door body;
when the load voltage of at least one phase is not zero and the door body is in an opening state, the step of determining that the person mistakenly enters the electrified interval comprises the following steps:
and determining that the person mistakenly enters the electrified interval when the load voltage of at least one phase is not zero and at least one door body is in an open state.
Optionally, after the step of determining whether the working state of the circuit breaker is abnormal according to the charging parameter, the method further includes:
and when the working state of the circuit breaker is abnormal, sending an acousto-optic alarm signal to remind surrounding personnel through the acousto-optic alarm signal.
In addition, in order to achieve the above object, the present invention further provides a switch cabinet safety warning device, which includes a memory, a processor, and a switch cabinet safety warning program stored in the memory and operable on the processor, wherein: the switch cabinet safety warning program realizes the steps of the switch cabinet safety warning method when executed by the processor.
In addition, to achieve the above object, the present invention further provides a computer readable storage medium, on which a switch cabinet safety warning program is stored, and when the switch cabinet safety warning program is executed by a processor, the steps of the switch cabinet safety warning method are implemented.
According to the safety warning method, the safety warning device and the storage medium for the switch cabinet, provided by the embodiment of the invention, through real-time detection of the charged parameters of the circuit breaker, whether the working state of the circuit breaker is abnormal or not can be determined through the charged parameters of the switch cabinet acquired in real time when the circuit breaker fails, namely whether the circuit breaker can normally indicate the charged state of the switch cabinet or not is determined. When the circuit breaker can not normally indicate because of the trouble, can in time remind fortune dimension personnel to restore and remind staff's circuit breaker trouble to the circuit breaker, avoid the staff to carry out the production process and cause the incident according to the instruction of the circuit breaker of this trouble. And cubical switchboard safety warning device can also confirm whether have personnel to miss and go into electrified interval according to the electrified parameter of cubical switchboard to and remind personnel to miss and withdraw from electrified interval in time, avoid taking place the personal accident.
Drawings
FIG. 1 is a schematic diagram of an apparatus in a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart illustrating a safety warning method for a switch cabinet according to a first embodiment of the present invention;
FIG. 3 is a schematic flow chart illustrating a safety warning method for a switch cabinet according to a second embodiment of the present invention;
FIG. 4 is a schematic flow chart illustrating a safety warning method for a switch cabinet according to a third embodiment of the present invention;
FIG. 5 is a schematic flow chart illustrating a safety warning method for a switch cabinet according to a fourth embodiment of the present invention;
FIG. 6 is a schematic flow chart illustrating a safety warning method for a switch cabinet according to a fifth embodiment of the present invention;
FIG. 7 is a schematic flow chart illustrating a safety warning method for a switch cabinet according to a sixth embodiment of the present invention;
fig. 8 is a schematic flow chart of a seventh embodiment of the safety warning method for a switch cabinet of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, fig. 1 is a schematic device structure diagram of a hardware operating environment according to an embodiment of the present invention.
The terminal of the embodiment of the invention can be a switch cabinet safety warning device and is applied to a medium-voltage power distribution system.
As shown in fig. 1, the terminal may include: a processor 1001, such as a CPU, a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory 1005 may be a high-speed RAM memory or a non-volatile memory (e.g., a magnetic disk memory). The memory 1005 may alternatively be a storage device separate from the processor 1001.
Optionally, the terminal may further include a camera, a Radio Frequency (RF) circuit, a sensor, an audio circuit, a WiFi module, and the like. Such as light sensors, motion sensors, and other sensors. Specifically, the light sensor may include an ambient light sensor that adjusts the brightness of the display screen based on the ambient light level and a proximity sensor that turns off the display screen and/or backlight when the hardware device is moved to the ear. As one of the motion sensors, the gravity acceleration sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when the motion sensor is stationary, and can be used for applications (such as horizontal and vertical screen switching, related games, magnetometer attitude calibration) for recognizing the attitude of hardware equipment, and related functions (such as pedometer and tapping) for vibration recognition; of course, the hardware device may also be configured with other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, and so on, which are not described herein again.
Those skilled in the art will appreciate that the terminal structure shown in fig. 1 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, a memory 1005, which is a type of computer storage medium, may include an operating system, a network communication module, a user interface module, and a switch cabinet security alert program.
In the terminal shown in fig. 1, the network interface 1004 is mainly used for connecting to a backend server and performing data communication with the backend server; the user interface 1003 is mainly used for connecting a client (user side) and performing data communication with the client; and the processor 1001 may be configured to call the switch cabinet safety warning program stored in the memory 1005, and perform the following operations:
when the switch cabinet runs, acquiring live parameters of the switch cabinet in real time, and determining whether the working state of the circuit breaker is abnormal or not and determining whether personnel mistakenly enter a live interval or not according to the live parameters;
when the working state of the circuit breaker is abnormal, sending a fault signal to operation and maintenance personnel to repair the circuit breaker;
when the personnel mistakenly enter the electrified interval, an alarm signal is sent out to remind the mistakenly entering personnel.
Further, the processor 1001 may call the switch cabinet safety warning program stored in the memory 1005, and further perform the following operations:
detecting three-phase load voltage of the circuit breaker in real time and acquiring the opening and closing state of the circuit breaker;
and determining whether the working state of the circuit breaker is abnormal or not according to the three-phase load voltage and the opening and closing state of the circuit breaker.
Further, the processor 1001 may call the switch cabinet safety warning program stored in the memory 1005, and further perform the following operations:
detecting the load voltage of each of the three phases of the circuit breaker in real time;
the step of determining whether the working state of the circuit breaker is abnormal or not according to the three-phase load voltage and the opening and closing state of the circuit breaker comprises the following steps:
determining whether the load voltage of each phase is zero and the circuit breaker is in a closed state;
when the load voltage of at least one phase is not zero and the circuit breaker is not in a closed state, determining that the circuit breaker has a division abnormity.
Further, the processor 1001 may call the switch cabinet safety warning program stored in the memory 1005, and further perform the following operations:
and when the load voltage of at least one phase is zero and the circuit breaker is in a closed state, determining that the circuit breaker is abnormal in combination.
Further, the processor 1001 may call the switch cabinet safety warning program stored in the memory 1005, and further perform the following operations:
detecting the three-phase load voltage of the circuit breaker in real time and acquiring opening and closing information of a door body of the switch cabinet;
and determining whether the personnel mistakenly enter the electrified interval or not according to the three-phase load voltage of the circuit breaker and the opening and closing information of the door body.
Further, the processor 1001 may call the switch cabinet safety warning program stored in the memory 1005, and further perform the following operations:
determining whether the load voltage of each phase of the circuit breaker is zero or not and determining whether the door body is in an open state or not according to the opening and closing information of the door body;
and when the load voltage of at least one phase is not zero and the door body is in an open state, determining that the person mistakenly enters the electrified interval.
Further, the processor 1001 may call the switch cabinet safety warning program stored in the memory 1005, and further perform the following operations:
determining whether the load voltage of each phase of the circuit breaker is zero or not and determining whether the corresponding door body is in an open state or not according to the opening and closing information of each door body;
and determining that the person mistakenly enters the electrified interval when the load voltage of at least one phase is not zero and at least one door body is in an open state.
Further, the processor 1001 may call the switch cabinet safety warning program stored in the memory 1005, and further perform the following operations:
and sending fault information and an acousto-optic alarm signal so as to prompt operation and maintenance personnel to repair the circuit breaker through the fault information and remind surrounding personnel through the acousto-optic alarm signal.
The specific embodiment of the safety warning device for the switch cabinet of the invention is basically the same as the following embodiments of the safety warning method for the switch cabinet, and the detailed description is omitted here.
Referring to fig. 2, fig. 2 is a schematic flow chart of a first embodiment of a safety warning method for a switch cabinet of the present invention, wherein the safety warning method for the switch cabinet includes the following steps:
step S10, acquiring live parameters of the switch cabinet in real time when the switch cabinet runs, and determining whether the working state of the circuit breaker is abnormal and whether personnel mistakenly enter a live interval according to the live parameters;
the terminal of the embodiment is a switch cabinet safety warning device and is applied to a power distribution system. Optionally, the power distribution system may be a medium voltage distribution system, and the terminal of this embodiment is a medium voltage switch cabinet warning device. The switch cabinet is internally provided with a circuit breaker for controlling the running state of the switch cabinet and protecting the switch cabinet and each device. At present cubical switchboard has generally set up mechanical and electronic dual five and has prevented locking system, and five prevent that the finger should possess five kinds of mistake functions to high-voltage electrical equipment: (1) the circuit breaker is prevented from being wrongly opened and closed; (2) the isolating switch is prevented from being pulled and closed under the load; (3) preventing the charged hanging (closing) of a grounding wire (grounding knife switch); (4) the circuit breaker (isolating switch) is prevented from being closed by a grounding wire (grounding knife switch); (5) prevent the wrong entering into the electrified interval.
When the circuit breaker normally works, whether the switch cabinet is in an operating state or not can be determined by a worker through acquiring the working state of the circuit breaker, and the switch cabinet is timely kept away to avoid accidents when in operation. However, when the breaker fails and the working state of the switch cabinet cannot be normally indicated, personnel injury may be caused. Therefore, when the switch cabinet runs, whether the working state of the circuit breaker is abnormal or not can be determined by acquiring the live parameters of the circuit breaker and the actual working state of the circuit breaker in real time, and whether the working state of the circuit breaker is in a fault-entering live interval or not can be further determined according to the live parameters.
Step S20, when the working state of the breaker is abnormal, sending a fault signal to an operation and maintenance worker to repair the breaker;
the abnormal working state of the circuit breaker means that when the circuit breaker displays that the switch cabinet is in the open circuit state, the circuit of the switch cabinet can still be detected to be electrified; or when the breaker shows that the switch cabinet is in the running state, the circuit of the switch cabinet is detected to be uncharged. In the former case, the operator may mistakenly think that the switch cabinet is powered off and enter the switch cabinet, thereby causing an electric shock accident. When the latter fault occurs, the electrical equipment cannot normally operate due to the fact that the switch cabinet is not electrified, and fault repair is needed. Therefore, no matter which fault occurs in the circuit breaker, a fault signal needs to be sent to operation and maintenance personnel in time so that the operation and maintenance personnel can repair the fault of the circuit breaker of the switch cabinet.
And step S30, when the personnel mistakenly enter the electrified interval, sending an alarm signal to remind the mistakenly entering personnel.
After the live parameters of the switch cabinet are acquired in real time, whether the situation that people mistakenly enter the live interval exists can be determined according to the live parameters. The live interval refers to a certain area independently isolated in high-voltage areas of a power distribution cabinet. In this region, the conductive medium is usually air, and the phenomenon of breakdown discharge does not occur. After the personnel mistakenly enter the electrified interval, the human body is used as a conductive medium to reduce the breakdown voltage in the area, so that the discharge phenomenon is easy to generate, and personal or equipment accidents are caused. Therefore, when the situation that the personnel mistakenly enter the electrified interval is detected, an alarm signal needs to be sent out in time to remind the mistakenly entered personnel to exit the electrified interval.
In this embodiment, through carrying out real-time detection to the electrified parameter of circuit breaker, can be when the circuit breaker trouble, whether the operating condition of circuit breaker takes place unusually through the electrified parameter of the cubical switchboard that acquires in real time, confirm promptly that whether the circuit breaker can normally instruct the electrified state of cubical switchboard. When the circuit breaker can not normally indicate because of the trouble, can in time remind fortune dimension personnel to restore and remind staff's circuit breaker trouble to the circuit breaker, avoid the staff to carry out the production process and cause the incident according to the instruction of the circuit breaker of this trouble. And cubical switchboard safety warning device can also confirm whether have personnel to miss and go into electrified interval according to the electrified parameter of cubical switchboard to and remind personnel to miss and withdraw from electrified interval in time, avoid taking place the personal accident.
Further, referring to fig. 3, fig. 3 is a schematic flowchart of a second embodiment of the safety warning method for a switch cabinet of the present invention, based on the embodiment shown in fig. 2, in step S10, when the switch cabinet is in operation, the step of acquiring a live parameter of the switch cabinet in real time, and determining whether the working state of the circuit breaker is abnormal and determining whether there is a person mistakenly entering a live interval according to the live parameter includes:
step S11, detecting the three-phase load voltage of the breaker in real time and acquiring the open-close state of the breaker when the switch cabinet runs;
step S12, determining whether the working state of the breaker is abnormal according to the three-phase load voltage and the opening and closing state of the breaker;
and step S13, determining whether the personnel mistakenly enter the electrified interval according to the three-phase load voltage and the opening and closing state of the circuit breaker.
In this embodiment, the live parameters of the switchgear refer to three-phase load voltages of the circuit breaker, i.e., a-phase, B-phase, and C-phase load voltages, and the open/close states of the circuit breaker. After the three-phase load voltage of the circuit breaker and the opening and closing state of the circuit breaker are detected in real time, whether the detection value of the three-phase load voltage accords with the current opening and closing state of the circuit breaker or not is determined. If the numerical value is consistent with the state, the circuit breaker normally works and can be used for indicating the working state of the switch cabinet. If the numerical value does not match the state, the circuit breaker is abnormal, error information may be brought to workers, and therefore the working state of the switch cabinet cannot be continuously indicated. Because the working state of the switch cabinet is determined by the staff of the switch cabinet through the circuit breaker, safety accidents are possibly caused by wrong indication information when the circuit breaker fails. Therefore, the working state of the circuit breaker is detected, whether the indicating state of the circuit breaker is normal or not can be effectively determined, and therefore workers can obtain correct indication and safety of the workers and equipment is protected.
Further, referring to fig. 4, fig. 4 is a schematic flowchart of a safety warning method for a switch cabinet according to a third embodiment of the present invention, based on the embodiment shown in fig. 3, in step S11, when the switch cabinet is in operation, the step of detecting a three-phase load voltage of the circuit breaker in real time and acquiring an open/close state of the circuit breaker includes:
step S111, detecting the load voltage of each phase of the three phases of the circuit breaker in real time and acquiring the opening and closing state of the circuit breaker when the switch cabinet runs;
the step S12 of determining whether the operating state of the circuit breaker is abnormal according to the three-phase load voltage and the open/close state of the circuit breaker includes:
step S121, determining whether the load voltage of each phase is zero and whether the circuit breaker is in a closed state;
and step S122, when the load voltage of at least one phase is not zero and the circuit breaker is not in a closed state, determining that the circuit breaker has a dislocation abnormity.
In this embodiment, the switch cabinet safety warning device can detect the load voltage of each of the three phases of the circuit breaker and detect whether the circuit breaker is closed. After the load voltage of each phase is detected, it is determined whether the load voltage of each phase is zero, and it is determined whether the circuit breaker is closed. Normally, when the circuit breaker is not in a closed state, i.e. the circuit breaker is in a separated position, each of the three-phase load voltages is zero voltage correspondingly. If the load voltage of at least one phase is detected to be not zero, the at least one phase is charged. And therefore, the breaker is in a charged state but is not displayed in a closed state, the actual charged state of the switch cabinet does not accord with the displayed switch closed state, and the breaker has a separation fault. If the staff acquires the wrong opening and closing information displayed by the circuit breaker, safety accidents are easy to happen. Therefore, when the circuit breaker is determined to have the dislocation fault, a fault signal needs to be sent to operation and maintenance personnel in time so as to repair the circuit breaker and remind surrounding workers of circuit breaker fault information, and therefore the fault information of the circuit breaker is prevented from misleading the workers.
Further, with continued reference to fig. 4, in the third embodiment of the safety warning method for a switch cabinet of the present invention, after the step of determining whether the load voltage of each phase is zero and the circuit breaker is in the closed state in step S121, the method further includes:
and S123, determining that the circuit breaker is abnormal in closing position when the load voltage of at least one phase is zero and the circuit breaker is in a closed state.
In this embodiment, when the switch cabinet safety warning device detects that the circuit breaker is in the closed state, the phase voltage of each phase in the three-phase load voltage of the circuit breaker is not zero under normal conditions. If the load voltage of at least one phase is detected to be zero, the circuit breaker is not normally closed or the circuit breaker is closed but single phase or multiple phases in the circuit breaker are not closed due to mechanism failure or auxiliary contact failure. At the moment, the actual electrified state of the switch cabinet does not accord with the displayed opening and closing state of the circuit breaker, and the switch cabinet cannot normally run due to the phase loss of the three-phase load voltage. If the staff can not normally operate because of the failure of the indicating state of the circuit breaker, the safety accident is enlarged, the equipment is damaged, the safe and stable operation of the system is endangered, and huge property loss is caused. Therefore, when the circuit breaker is determined to have a closed position fault, a fault signal needs to be sent to operation and maintenance personnel in time to repair the circuit breaker and remind surrounding workers of corresponding circuit breaker fault information, so that safety accidents are prevented from being expanded.
Further, referring to fig. 5, fig. 5 is a schematic flowchart of a fourth embodiment of the safety warning method for a switch cabinet of the present invention, based on the embodiments shown in fig. 2 to 4, in step S10, when the switch cabinet is in operation, the step of acquiring a live parameter of the switch cabinet in real time, and determining whether the working state of the circuit breaker is abnormal and determining whether a person mistakenly enters a live interval according to the live parameter includes:
step S40, detecting the three-phase load voltage of the breaker in real time and acquiring the opening and closing information of the door body of the switch cabinet when the switch cabinet runs;
step S41, determining whether the working state of the breaker is abnormal according to the three-phase load voltage of the breaker;
and step S42, determining whether the person mistakenly enters the electrified interval according to the three-phase load voltage of the circuit breaker and the opening and closing information of the door body.
In this embodiment, the live parameters of the switch cabinet include three-phase load voltage of the circuit breaker and opening and closing information of a door body of the switch cabinet. Whether the door body of the switch cabinet is opened or not when the switch cabinet is powered off can be determined after the three-phase load voltage of the circuit breaker and the opening and closing information of the door body of the switch cabinet are obtained, whether the personnel mistakenly enter the electrified interval or not is determined, and alarm information is sent to the mistakenly entered personnel to remind the personnel to rapidly exit the electrified interval when the personnel mistakenly enter the electrified interval is determined, so that safety accidents are avoided.
Further, referring to fig. 6, fig. 6 is a schematic flowchart of a fifth embodiment of the safety warning method for a switch cabinet of the present invention, and based on the embodiment shown in fig. 5, the step S42 of determining whether there is a gap where a person mistakenly enters the live line according to the three-phase load voltage of the circuit breaker and the opening and closing information of the door body includes:
step S421, determining whether the load voltage of each phase of the circuit breaker is zero and determining whether the door body is in an open state according to the opening and closing information of the door body;
and step S422, determining that the person mistakenly enters the electrified interval when at least one phase of load voltage is not zero and the door body is in an open state.
In this embodiment, the obtained three-phase load voltage of the circuit breaker is the load voltage of each phase of the circuit breaker, and it is determined whether the load voltage of each phase is zero voltage. And after the opening and closing information of the door body is acquired, determining whether the door body is opened or not according to the opening and closing information. It can be understood that after the door body of the switch cabinet is opened, corresponding workers can enter the switch cabinet, and the switch cabinet is in a power-off state, namely the load voltage of each phase in the three-phase load voltage is zero voltage. If the load voltage of at least one phase in the three-phase load voltage is detected to be not zero, the switch cabinet is in a charged state at the moment, and any person is not allowed to enter the switch cabinet. If the door body of the switch cabinet is detected to be opened when the switch cabinet is in the electrified state, the fact that a person opens the door body to prepare for entering when the switch cabinet is electrified is indicated. At the moment, an alarm signal needs to be sent out in time to prompt the mistakenly-entering personnel switch cabinet to be in a charged state so as to avoid the mistakenly-entering of personnel into a charged interval.
Further, referring to fig. 7, fig. 7 is a flowchart illustrating a sixth embodiment of the safety warning method for a switch cabinet according to the present invention, based on the embodiment shown in fig. 6, where the switch cabinet includes a plurality of door bodies, and the step S421 of determining whether the load voltage of each phase of the circuit breaker is zero and determining whether the door body is in an open state according to the opening and closing information of the door body includes:
step 423, determining whether the load voltage of each phase of the circuit breaker is zero or not and determining whether the corresponding door body is in an open state or not according to the opening and closing information of each door body;
step S422, when there is at least one phase of load voltage not zero and the door is in an open state, the step of determining that there is a human mistakenly entering the electrified interval includes:
step S424, when there is at least one phase of load voltage not zero and at least one door is in an open state, it is determined that there is a human mistakenly entering the charging interval.
In this embodiment, the cubical switchboard is provided with a plurality of door bodies, and personnel can open any door body in order to get into the cubical switchboard. Therefore, the safety warning device of the switch cabinet needs to determine the opening state of each door body in a plurality of door bodies. When the fact that at least one phase of load voltage is not zero in the three-phase load voltage is detected, the switch cabinet can be determined to be electrified, and at the moment, if a door body is in an opening state, it indicates that a person opens the door body to prepare entering. That is, when the switch cabinet is electrified, any door body is in an open state, which indicates that people mistakenly enter the electrified interval, and an alarm signal is timely sent out to carry out corresponding prompt so as to avoid personal accidents.
Further, referring to fig. 8, fig. 8 is a schematic flowchart of a seventh embodiment of the safety warning method for a switch cabinet of the present invention, based on the embodiments shown in fig. 2 to 4, where step S10 is implemented, after the steps of acquiring a live parameter of the switch cabinet in real time when the switch cabinet is in operation, determining whether a working state of the circuit breaker is abnormal according to the live parameter, and determining whether a person enters a live interval by mistake, the method further includes:
and step S21, when the working state of the circuit breaker is abnormal, sending an audible and visual alarm signal to remind surrounding personnel through the audible and visual alarm signal.
In this embodiment, when the operating condition of circuit breaker takes place unusually, cubical switchboard safety warning device not only need send fault information for fortune dimension personnel to the suggestion it repairs the circuit breaker, still need send audible and visual alarm signal near the cubical switchboard, with the staff circuit breaker that the suggestion cubical switchboard is around breaks down, avoids the staff to receive the misleading of the error message that the circuit breaker sent and influence the steady operation of system.
In addition, an embodiment of the present invention further provides a computer-readable storage medium, on which a switch cabinet security alert program is stored, where the storage medium may be the Memory 1005 in the terminal in fig. 1, or may be at least one of a ROM (Read-only Memory)/RAM (Random Access Memory), a magnetic disk, and an optical disk, and the computer-readable storage medium includes several instructions to enable a member device (which may be a mobile phone, a computer, a server, or a television, etc.) having a processor to execute the switch cabinet security alert method according to the embodiments of the present invention.
It is to be understood that throughout the description of the present specification, reference to the term "one embodiment", "another embodiment", "other embodiments", or "first through nth embodiments", etc., is intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system 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 system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A safety warning method for a switch cabinet is characterized in that the switch cabinet is provided with a circuit breaker, and the safety warning method comprises the following steps:
when the switch cabinet runs, acquiring live parameters of the switch cabinet in real time, and determining whether the working state of the circuit breaker is abnormal or not and determining whether personnel mistakenly enter a live interval or not according to the live parameters;
when the working state of the circuit breaker is abnormal, sending a fault signal to operation and maintenance personnel to repair the circuit breaker;
when the personnel mistakenly enter the electrified interval, an alarm signal is sent out to remind the mistakenly entering personnel.
2. The switch cabinet safety warning method according to claim 1, wherein the step of acquiring live parameters of the switch cabinet in real time and determining whether the working state of the circuit breaker is abnormal according to the live parameters comprises:
detecting three-phase load voltage of the circuit breaker in real time and acquiring the opening and closing state of the circuit breaker;
and determining whether the working state of the circuit breaker is abnormal or not according to the three-phase load voltage and the opening and closing state of the circuit breaker.
3. The switch cabinet safety warning method of claim 2, wherein the step of detecting the three-phase load voltage of the circuit breaker in real time comprises:
detecting the load voltage of each of the three phases of the circuit breaker in real time;
the step of determining whether the working state of the circuit breaker is abnormal or not according to the three-phase load voltage and the opening and closing state of the circuit breaker comprises the following steps:
determining whether the load voltage of each phase is zero and the circuit breaker is in a closed state;
when the load voltage of at least one phase is not zero and the circuit breaker is not in a closed state, determining that the circuit breaker has a division abnormity.
4. The switchgear safety warning method of claim 3, wherein the step of determining whether the load voltage of each phase is zero and the circuit breaker is in a closed state is followed by the steps of:
and when the load voltage of at least one phase is zero and the circuit breaker is in a closed state, determining that the circuit breaker is abnormal in combination.
5. The switch cabinet safety warning method according to any one of claims 1 to 4, wherein the step of acquiring live parameters of the switch cabinet in real time comprises:
detecting the three-phase load voltage of the circuit breaker in real time and acquiring opening and closing information of a door body of the switch cabinet;
the step of determining whether the person mistakenly enters the electrified interval according to the electrified parameters comprises the following steps:
and determining whether the personnel mistakenly enter the electrified interval or not according to the three-phase load voltage of the circuit breaker and the opening and closing information of the door body.
6. The switch cabinet safety warning method according to claim 5, wherein the step of determining whether the person mistakenly enters the electrified interval according to the three-phase load voltage of the circuit breaker and the opening and closing information of the door body comprises the following steps:
determining whether the load voltage of each phase of the circuit breaker is zero or not and determining whether the door body is in an open state or not according to the opening and closing information of the door body;
and when the load voltage of at least one phase is not zero and the door body is in an open state, determining that the person mistakenly enters the electrified interval.
7. The switch cabinet safety warning method according to claim 6, wherein the switch cabinet comprises a plurality of door bodies, and the step of determining whether the load voltage of each phase of the circuit breaker is zero and whether the door bodies are in an open state according to the opening and closing information of the door bodies comprises the steps of:
determining whether the load voltage of each phase of the circuit breaker is zero or not and determining whether the corresponding door body is in an open state or not according to the opening and closing information of each door body;
when the load voltage of at least one phase is not zero and the door body is in an opening state, the step of determining that the person mistakenly enters the electrified interval comprises the following steps:
and determining that the person mistakenly enters the electrified interval when the load voltage of at least one phase is not zero and at least one door body is in an open state.
8. The switch cabinet safety warning method according to any one of claims 1 to 4 and 6 to 7, wherein after the step of determining whether the working state of the circuit breaker is abnormal according to the live parameters, the method further comprises the following steps:
and when the working state of the circuit breaker is abnormal, sending an acousto-optic alarm signal to remind surrounding personnel through the acousto-optic alarm signal.
9. A switch cabinet safety warning device, characterized in that, the switch cabinet safety warning device includes a memory, a processor and a switch cabinet safety warning program stored on the memory and operable on the processor, wherein: the switchgear safety warning program, when executed by the processor, implements the steps of the switchgear safety warning method according to any of claims 1 to 8.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a switchgear safety warning program which, when executed by a processor, carries out the steps of the switchgear safety warning method according to one of claims 1 to 8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911280235.XA CN110956779A (en) | 2019-12-12 | 2019-12-12 | Safety warning method and device for switch cabinet and storage medium |
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| CN201911280235.XA CN110956779A (en) | 2019-12-12 | 2019-12-12 | Safety warning method and device for switch cabinet and storage medium |
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| CN110956779A true CN110956779A (en) | 2020-04-03 |
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| CN201911280235.XA Pending CN110956779A (en) | 2019-12-12 | 2019-12-12 | Safety warning method and device for switch cabinet and storage medium |
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