CN107608294B - Safety electricity utilization control device and method - Google Patents
Safety electricity utilization control device and method Download PDFInfo
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- CN107608294B CN107608294B CN201710972335.3A CN201710972335A CN107608294B CN 107608294 B CN107608294 B CN 107608294B CN 201710972335 A CN201710972335 A CN 201710972335A CN 107608294 B CN107608294 B CN 107608294B
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
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Abstract
The invention provides a safe electricity utilization control device and method. According to the method, through the safety power utilization device, firstly, the electric signals collected by other safety power utilization control devices need to be pre-judged before power utilization protection is carried out so as to judge whether the electric signals are suspected dangerous signals; secondly, collecting monitoring information of the site electricity utilization environment when the suspected dangerous signal is judged, and processing the monitoring information to obtain whether the site electricity utilization environment is dangerous or not; and finally, when the power utilization environment of the dangerous site is judged, the device is controlled to carry out power utilization protection through a protection command generated by the first electric signal and the monitoring information. Because the action of power consumption protection corresponds to the protection instruction, misoperation can be reduced, errors caused by single source information judgment can be reduced through multi-level information comparison, and the judgment accuracy is improved.
Description
Technical Field
The invention relates to the field of safe electricity utilization, in particular to a safe electricity utilization control device and method.
Background
Safety power consumption relation everybody, the security of the lives and property of every family, in prior art, the power consumption safety generally can be realized through setting up the power consumption protection circuit, carries out the power consumption protection when the circuit takes place unusually. However, in the prior art, when circuit abnormality is determined, generally only the change of the signal of the reference circuit is used, and misdetermination caused by the influence of the power supply environment is not considered, in this case, normal power utilization is affected, the power utilization experience for users is poor, and meanwhile, the service life of the power utilization equipment is affected too much by the frequency of circuit protection after misdetermination.
Disclosure of Invention
In order to overcome the above defects in the prior art, the technical problem to be solved by the present invention is to provide a safety power utilization control device and method, which can more accurately implement power utilization protection, reduce the probability of misjudgment, and improve the service life of power utilization equipment in a complex power supply environment.
An embodiment of the present invention provides a safety power utilization control device, which is disposed between an electric meter output end of a home electric network and an electric device, and includes: the system comprises an electric signal acquisition unit, a processing control unit, a communication unit, a power utilization environment monitoring unit and a line protection unit.
The electric signal acquisition unit is used for acquiring a first electric signal of a line where the electric equipment is located.
The communication unit is electrically connected with the processing control unit and used for establishing data communication among the plurality of safety power utilization control devices for protecting the circuit where the same electric equipment is located so as to acquire second electric signals of the circuit where other safety power utilization control devices are located.
The processing control unit is electrically connected with the electric signal acquisition unit and used for comparing and processing the first electric signal acquired by the electric signal acquisition unit and the second electric signal acquired by other safety power utilization control devices to obtain whether the first electric signal acquired by the electric signal acquisition unit is a suspected dangerous signal or not and sending a monitoring instruction to the power utilization environment monitoring unit when the first electric signal is the suspected dangerous signal.
The power utilization environment monitoring unit is electrically connected with the processing control unit and used for receiving the monitoring instruction sent by the processing control unit, monitoring the field power utilization environment of the electric equipment according to the monitoring instruction to obtain monitoring information, and sending the monitoring information to the processing control unit.
The processing control unit is further configured to process the received monitoring information, judge whether the field power utilization environment of the power consumption device is dangerous according to a processing result, and send a protection instruction when the field power utilization environment is dangerous, where the protection instruction is generated according to the first electrical signal and the monitoring information.
The line protection unit is electrically connected with the processing control unit, and the line protection unit carries out power utilization protection on the line where the electric equipment is located according to the protection instruction.
According to the safety power utilization device, firstly, the electric signals collected by other safety power utilization control devices need to be pre-judged before power utilization protection is carried out so as to judge whether the electric signals are suspected dangerous signals; secondly, collecting monitoring information of the site electricity utilization environment when the suspected dangerous signal is judged, and processing the monitoring information to obtain whether the site electricity utilization environment is dangerous or not; and finally, when the power utilization environment of the dangerous site is judged, the device is controlled to carry out power utilization protection through a protection command generated by the first electric signal and the monitoring information. Because the action of power consumption protection corresponds to the protection instruction, misoperation can be reduced, errors caused by single source information judgment can be reduced through multi-level information comparison, and the judgment accuracy is improved.
Optionally, the electrical signal acquisition unit includes:
the current sensor is used for detecting the current quantity of a line on which the electric equipment is positioned;
the arc sensor is used for detecting an arc signal of a line where the electric equipment is located;
the current sensor and the arc sensor are electrically connected with the processing control unit.
Optionally, the power consumption environment monitoring unit includes:
the image acquisition subunit is used for acquiring the working environment of the electric equipment;
the temperature acquisition subunit is used for acquiring the working environment of the electric equipment;
the image acquisition subunit and the temperature acquisition subunit are electrically connected with the processing control unit.
Optionally, the line protection unit includes: the isolation subunit and the disconnection subunit;
the circuit protection unit controls the isolation subunit to isolate the circuit generating the electric arc when receiving a first electric signal acquired by the electric arc sensor and a protection instruction generated by monitoring information of the image acquisition subunit;
and the line protection unit controls the disconnection subunit to disconnect the line where the electric equipment is located when receiving the first electric signal acquired by the current sensor and a protection instruction generated by the monitoring information of the temperature acquisition subunit.
And generating a protection instruction according to different electric signals and monitoring information, and controlling to realize the protection of the line according to different protection instructions, so that misoperation in the line protection process can be reduced.
Optionally, the processing control unit compares the first electrical signal collected by the electrical signal collection unit with the second electrical signal collected by other safety power utilization control devices, and obtains a mode whether the first electrical signal collected by the electrical signal collection unit is a suspected dangerous signal, including:
comparing the collected current value in the first electrical signal with the collected current value in the second electrical signal, and when the difference between the current value in the first electrical signal and the average value of the current in the second electrical signal is greater than a preset current threshold, judging that the first electrical signal is a suspected danger signal; or
Comparing the collected arc signal value in the first electric signal with the collected arc signal value in the second electric signal, and when the difference between the arc signal value in the first electric signal and the average value of the arc signal values in the second electric signal is greater than a preset arc threshold value, judging that the first electric signal is a suspected danger signal.
Will first electrical signal compares with the second signal of telecommunication of other safe power consumption controlling means gathers, prevents because the whole signal of telecommunication of supply circuit fluctuates the error that causes, improves the precision of judging.
An embodiment of the present invention further provides a safety power utilization control method, which is applied to the safety power utilization control device described above, and the method includes:
collecting a first electric signal of a line where electric equipment is located;
acquiring second electric signals collected by other safety electricity utilization control devices which are in communication connection with the safety electricity utilization control devices and used for protecting circuits where the same electricity utilization equipment is located;
comparing the collected first electric signal with second electric signals collected by other safety electricity utilization control devices to obtain whether the first electric signal is a suspected dangerous signal;
when the first electric signal is a suspected dangerous signal, acquiring monitoring information of a field power utilization environment of the power utilization equipment;
and processing the monitoring information, judging whether the field power utilization environment of the electric equipment is dangerous or not, and protecting the line of the electric equipment when the field power utilization environment is a dangerous power utilization environment.
Optionally, the step of collecting the first electrical signal of the line on which the electric device is located includes:
acquiring a current magnitude signal of a line where the electric equipment is located through a current sensor;
and acquiring an electric arc signal of a line where the electric equipment is located through an electric arc sensor.
Optionally, the step of comparing the collected first electrical signal with second electrical signals collected by other safety power utilization control devices to determine whether the first electrical signal is a suspected dangerous signal includes:
comparing the collected current value in the first electrical signal with the collected current value in the second electrical signal, and when the difference between the current value in the first electrical signal and the average value of the current in the second electrical signal is greater than a preset current threshold, judging that the first electrical signal is a suspected danger signal; or
Comparing the collected arc signal value in the first electric signal with the collected arc signal value in the second electric signal, and when the difference between the arc signal value in the first electric signal and the average value of the arc signal values in the second electric signal is greater than a preset arc threshold value, judging that the first electric signal is a suspected danger signal.
Optionally, the step of processing the monitoring information, determining whether a field power consumption environment of the power consumption device is dangerous, and protecting the line of the power consumption device when the field power consumption environment is a dangerous power consumption environment includes:
when the first electric signal is judged to be a suspected dangerous signal by the current magnitude signal and the monitoring information shows that the environmental temperature of the line where the electric equipment is located exceeds the preset temperature, the field electric environment of the electric equipment is judged to be a dangerous electric environment, and the line where the electric equipment is located is controlled to be disconnected; or
And when the first electric signal is judged to be a suspected dangerous signal by the arc signal and the monitoring information shows that the environment of the line where the electric equipment is located has the arc, judging that the field electric environment of the electric equipment is a dangerous electric environment, and controlling to isolate the line generating the arc.
Optionally, the method further comprises:
the first electric signal corresponding to the dangerous power utilization environment is sent to other safety power utilization control devices for storage, so that the other safety power utilization control devices can directly carry out power utilization protection on the circuit when the collected electric signal is larger than the first electric signal.
Optionally, the method further comprises:
and storing the first electric signal, the monitoring information and the protection control action information, wherein the protection control action information comprises the actions of isolating the line and disconnecting the line.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a safe electricity utilization control device and method. According to the method, through the safety power utilization device, firstly, the electric signals collected by other safety power utilization control devices need to be pre-judged before power utilization protection is carried out so as to judge whether the electric signals are suspected dangerous signals; secondly, collecting monitoring information of the site electricity utilization environment when the suspected dangerous signal is judged, and processing the monitoring information to obtain whether the site electricity utilization environment is dangerous or not; and finally, when the power utilization environment of the dangerous site is judged, the device is controlled to carry out power utilization protection through a protection command generated by the first electric signal and the monitoring information. Because the action of power consumption protection corresponds to the protection instruction, misoperation can be reduced, errors caused by single source information judgment can be reduced through multi-level information comparison, and the judgment accuracy is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is an application scenario diagram of a safety power utilization control device according to an embodiment of the present invention.
Fig. 2 is a block diagram of a safety power utilization control device according to an embodiment of the present invention.
Fig. 3 is a block diagram of the safety power utilization control device in fig. 2.
Fig. 4 is a schematic flow chart of a safety power utilization control method according to an embodiment of the present invention.
Fig. 5 is another schematic flow chart of a safety power utilization control method according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be 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.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
Referring to fig. 1, the safety electricity utilization control device 20 is disposed between an output terminal of an electricity meter 10 of a home electric network and an electric device 30.
Referring to fig. 2 and fig. 3 together, fig. 2 is a block diagram of a safety power utilization control device 20 according to a preferred embodiment of the present invention, and fig. 3 is a specific block diagram of the safety power utilization control device 20 in fig. 2. The safety power utilization control device 20 includes: the system comprises an electric signal acquisition unit 21, a processing control unit 22, a communication unit 23, an electricity utilization environment monitoring unit 24 and a line protection unit 25.
In this embodiment, the electrical signal collecting unit 21 is configured to collect a first electrical signal of a line where the electric device 30 is located, and the electrical signal collecting unit 21 is electrically connected to the processing control unit 22.
Optionally, in this embodiment, the electrical signal collecting unit 21 may include a current sensor 211 for detecting the current amount of the line on which the electric device 30 is located, and an arc sensor 212 for detecting the arc signal of the line on which the electric device 30 is located. The current sensor 211 is also called a magnetic sensor, and may be used in electric devices such as home appliances, smart grids, electric vehicles, and wind power generation. The arc sensor 212 may be an arc sensor, and in the prior art, the arc sensor may be configured to detect the intensity of the arc light, transmit an arc signal to the arc light protection device, and determine whether to cut off the system power according to the intensity of the arc light. The current sensor 211 and the arc sensor 212 are electrically connected to the process control unit 22.
The communication unit 23 is electrically connected to the processing control unit 22, and is configured to establish data communication between the multiple safety power utilization control devices 20 that protect the line where the same power consumption equipment 30 is located, so as to obtain a second electrical signal of the line where the other safety power utilization control devices 20 are located.
In this embodiment, the communication unit 23 may perform data communication in a wireless manner, and may select to perform communication using a mobile communication network when performing communication using a wireless method; the communication unit 23 may also communicate data by way of a wired connection.
The processing control unit 22 is configured to compare the first electrical signal acquired by the electrical signal acquisition unit 21 with the second electrical signal acquired by another safety power utilization control device, obtain whether the first electrical signal acquired by the electrical signal acquisition unit 21 is a suspected dangerous signal, and send a monitoring instruction to the power utilization environment monitoring unit 24 when the first electrical signal is a suspected dangerous signal.
In this embodiment, the following two ways are included to determine whether the first electrical signal collected by the electrical signal collection unit 21 is a suspected danger signal.
In one mode, a current value in the collected first electrical signal is compared with a current value in the collected second electrical signal, and when a difference between the current value in the first electrical signal and an average value of the currents in the second electrical signal is greater than a preset current threshold, the first electrical signal is determined to be a suspected danger signal.
In another mode, comparing the collected arc signal value in the first electrical signal with the collected arc signal value in the second electrical signal, and when the difference between the arc signal value in the first electrical signal and the average value of the arc signal values in the second electrical signal is greater than a preset arc threshold, determining that the first electrical signal is a suspected danger signal.
In this embodiment, the arc signal value refers to a light intensity value corresponding to the collected arc.
The power consumption environment monitoring unit 24 is electrically connected to the processing control unit 22, and is configured to receive the monitoring instruction sent by the processing control unit 22, monitor the field power consumption environment of the power consumption device 30 according to the monitoring instruction to obtain monitoring information, and send the monitoring information to the processing control unit 22.
In this embodiment, the power consumption environment monitoring unit 24 may include an image collecting subunit 241 for collecting the working environment of the power consumption device 30, and a temperature collecting subunit 242 for collecting the working environment of the power consumption device 30. The image acquisition subunit 241 and the temperature acquisition subunit 242 are electrically connected to the processing control unit 22. The image collecting subunit 241 may be a camera for collecting the field working environment of the electric device 30, and optionally, the image collecting subunit 241 may adopt an infrared camera for collecting, so that the processing control unit 22 obtains whether an arc occurs through processing of collecting an image by the infrared camera. The temperature collecting sub-unit 242 may include temperature sensors disposed near the line where the electric devices 30 and the safety electricity control device 20 are located. And judging whether the line where the safety electricity utilization control device 20 is located is short-circuited or overloaded by detecting the temperature of the set position. The power consumption environment monitoring unit 24 can accurately obtain the field working environment of the power consumption device 30 through a sensor or a camera, and provides accurate information for judging the fault of the line where the safety power consumption control device 20 is located, so as to prevent misjudgment.
In this embodiment, the processing control unit 22 is further configured to process the received monitoring information, determine whether the field power utilization environment of the electric device 30 is dangerous according to a processing result, and send a protection instruction in case of danger, where the protection instruction is generated according to the first electrical signal and the monitoring information.
The line protection unit 25 is electrically connected to the processing control unit 22, and the line protection unit 25 performs power utilization protection on the line where the electric device 30 is located according to the protection instruction.
The line protection unit 450 includes an isolation subunit and a disconnection subunit.
Optionally, the manner of performing power utilization protection on the line where the electric device 30 is located by the line protection unit 450 according to the protection instruction includes:
when the current magnitude signal is used for judging that the first electric signal is a suspected dangerous signal and the monitoring information shows that the ambient temperature of the line where the electric equipment 30 is located exceeds the preset temperature, judging that the field electric environment of the electric equipment is a dangerous electric environment, and controlling to disconnect the line where the electric equipment 30 is located by a disconnection subunit; or
When the first electric signal is judged to be a suspected dangerous signal by the arc signal and the monitoring information shows that the environment of the line where the electric equipment 30 is located has an arc, the field electric environment of the electric equipment 30 is judged to be a dangerous electric environment, and the isolation subunit controls to isolate the line generating the arc.
In this embodiment, the safety power utilization control device 20 is further configured to send the first electrical signal corresponding to the dangerous power utilization environment to other safety power utilization control devices 20 for storage, so that the other safety power utilization control devices 20 directly perform power utilization protection on the line when the acquired electrical signal is greater than the first electrical signal.
In this embodiment, the safety electric power consumption control device 20 further stores the first electric signal, the monitoring information, and protection control operation information in advance, where the protection control operation information includes an operation of isolating a line and an operation of disconnecting the line.
Referring to fig. 4, the present invention further provides a safety power utilization control method, which is applied to the safety power utilization control device 20 described above, and the specific method of the method is as follows.
In step S41, a first electrical signal of the line where the electric device 30 is located is collected.
And step S42, acquiring second electric signals collected by other safety electricity utilization control devices which are in communication connection with the safety electricity utilization control devices and used for protecting the line where the same electricity utilization equipment is located.
And step S43, comparing the collected first electric signal with second electric signals collected by other safety electricity utilization control devices to obtain whether the first electric signal is a suspected danger signal.
In this embodiment, step S43 may include:
comparing the collected current value in the first electrical signal with the collected current value in the second electrical signal, and when the difference between the current value in the first electrical signal and the average value of the current in the second electrical signal is greater than a preset current threshold, judging that the first electrical signal is a suspected danger signal; or
Comparing the collected arc signal value in the first electric signal with the collected arc signal value in the second electric signal, and when the difference between the arc signal value in the first electric signal and the average value of the arc signal values in the second electric signal is greater than a preset arc threshold value, judging that the first electric signal is a suspected danger signal.
And step S44, when the first electric signal is a suspected danger signal, acquiring monitoring information of the field electricity utilization environment of the electricity utilization equipment.
And step S45, processing the monitoring information, judging whether the field electricity utilization environment of the electric equipment is dangerous, and protecting the line of the electric equipment when the field electricity utilization environment is a dangerous electricity utilization environment.
In this embodiment, step S45 may include:
when the first electric signal is judged to be a suspected dangerous signal by the current magnitude signal and the monitoring information shows that the environmental temperature of the line where the electric equipment is located exceeds the preset temperature, the field electric environment of the electric equipment is judged to be a dangerous electric environment, and the line where the electric equipment is located is controlled to be disconnected; or
And when the first electric signal is judged to be a suspected dangerous signal by the arc signal and the monitoring information shows that the environment of the line where the electric equipment is located has the arc, judging that the field electric environment of the electric equipment is a dangerous electric environment, and controlling to isolate the line generating the arc.
Referring to fig. 5, in this embodiment, the method may further include step S46.
And step S46, sending the first electric signal corresponding to the dangerous power utilization environment to other safety power utilization control devices for storage, so that the other safety power utilization control devices can directly carry out power utilization protection on the circuit when the acquired electric signal is larger than the first electric signal.
Referring to fig. 5, in the present embodiment, before the step S41, the method may further include a step S40.
And storing the first electric signal, the monitoring information and the protection control action information in advance, wherein the protection control action information comprises an action of isolating the line and an action of disconnecting the line.
In summary, the embodiments of the present invention provide a safety power control apparatus and method. According to the method, through the safety power utilization device, firstly, the electric signals collected by other safety power utilization control devices need to be pre-judged before power utilization protection is carried out so as to judge whether the electric signals are suspected dangerous signals; secondly, collecting monitoring information of the site electricity utilization environment when the suspected dangerous signal is judged, and processing the monitoring information to obtain whether the site electricity utilization environment is dangerous or not; and finally, when the power utilization environment of the dangerous site is judged, the device is controlled to carry out power utilization protection through a protection command generated by the first electric signal and the monitoring information. Because the action of power consumption protection corresponds to the protection instruction, misoperation can be reduced, errors caused by single source information judgment can be reduced through multi-level information comparison, and the judgment accuracy is improved.
Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A safety electricity utilization control device comprises an electric signal acquisition unit, a processing control unit and a line protection unit, wherein the electric signal acquisition unit is used for acquiring a first electric signal of a line where electric equipment is located, the line protection unit is electrically connected with the electric signal acquisition unit and is used for comparing the first electric signal acquired by the electric signal acquisition unit with a second electric signal acquired by other safety electricity utilization control devices to obtain whether the first electric signal acquired by the electric signal acquisition unit is a suspected dangerous signal or not and sending a monitoring instruction to an electricity utilization environment monitoring unit when the first electric signal is the suspected dangerous signal, the line protection unit is electrically connected with the processing control unit and is used for carrying out electricity utilization protection on the line where the electric equipment is located according to the protection instruction, the safety electricity utilization control device is characterized in that the safety electricity utilization control device is arranged between an electric meter output end of a household electric network and the electric equipment, the safety power utilization control device further includes: a communication unit and a power consumption environment monitoring unit;
the communication unit is electrically connected with the processing control unit and is used for establishing data communication among a plurality of safety power utilization control devices for protecting circuits of the same power utilization equipment so as to acquire second electric signals of the circuits of other safety power utilization control devices;
the power utilization environment monitoring unit is electrically connected with the processing control unit and is used for receiving the monitoring instruction sent by the processing control unit, monitoring the field power utilization environment of the electric equipment according to the monitoring instruction to obtain monitoring information and sending the monitoring information to the processing control unit;
the processing control unit is further configured to process the received monitoring information, judge whether the field power utilization environment of the power consumption device is dangerous according to a processing result, and send a protection instruction when the field power utilization environment is dangerous, where the protection instruction is generated according to the first electrical signal and the monitoring information.
2. The safety power utilization control device according to claim 1, wherein the electric signal collecting unit includes:
the current sensor is used for detecting the current quantity of a line on which the electric equipment is positioned;
the arc sensor is used for detecting an arc signal of a line where the electric equipment is located;
the current sensor and the arc sensor are electrically connected with the processing control unit.
3. The safety power consumption control device according to claim 2, wherein the power consumption environment monitoring unit includes:
the image acquisition subunit is used for acquiring the working environment of the electric equipment;
the temperature acquisition subunit is used for acquiring the working environment of the electric equipment;
the image acquisition subunit and the temperature acquisition subunit are electrically connected with the processing control unit.
4. The safety power utilization control device according to claim 3, wherein the line protection unit includes: the isolation subunit and the disconnection subunit;
the circuit protection unit controls the isolation subunit to isolate the circuit generating the electric arc when receiving a first electric signal acquired by the electric arc sensor and a protection instruction generated by monitoring information of the image acquisition subunit;
and the line protection unit controls the disconnection subunit to disconnect the line where the electric equipment is located when receiving the first electric signal acquired by the current sensor and a protection instruction generated by the monitoring information of the temperature acquisition subunit.
5. The safety power utilization control device according to any one of claims 2 to 4, wherein the processing control unit compares the first electrical signal collected by the electrical signal collection unit with the second electrical signals collected by other safety power utilization control devices, and obtains a mode of whether the first electrical signal collected by the electrical signal collection unit is a suspected dangerous signal, the mode including:
comparing the collected current value in the first electrical signal with the collected current value in the second electrical signal, and when the difference between the current value in the first electrical signal and the average value of the current in the second electrical signal is greater than a preset current threshold, judging that the first electrical signal is a suspected danger signal; or
Comparing the collected arc signal value in the first electric signal with the collected arc signal value in the second electric signal, and when the difference between the arc signal value in the first electric signal and the average value of the arc signal values in the second electric signal is greater than a preset arc threshold value, judging that the first electric signal is a suspected danger signal.
6. A safety power utilization control method applied to the safety power utilization control device according to any one of claims 1 to 4, characterized by comprising:
collecting a first electric signal of a line where electric equipment is located;
acquiring second electric signals collected by other safety electricity utilization control devices which are in communication connection with the safety electricity utilization control devices and used for protecting circuits where the same electricity utilization equipment is located;
comparing the collected first electric signal with second electric signals collected by other safety electricity utilization control devices to obtain whether the first electric signal is a suspected dangerous signal;
when the first electric signal is a suspected dangerous signal, acquiring monitoring information of a field power utilization environment of the power utilization equipment;
and processing the monitoring information, judging whether the field power utilization environment of the electric equipment is dangerous or not, and protecting the line of the electric equipment when the field power utilization environment is a dangerous power utilization environment.
7. The safety power utilization control method according to claim 6, wherein the step of collecting the first electric signal of the line where the electric equipment is located comprises:
acquiring a current magnitude signal of a line where the electric equipment is located through a current sensor;
and acquiring an electric arc signal of a line where the electric equipment is located through an electric arc sensor.
8. The safety power utilization control method according to claim 7, wherein the step of comparing the collected first electrical signal with second electrical signals collected by other safety power utilization control devices to determine whether the first electrical signal is a suspected danger signal comprises:
comparing the collected current value in the first electrical signal with the collected current value in the second electrical signal, and when the difference between the current value in the first electrical signal and the average value of the current in the second electrical signal is greater than a preset current threshold, judging that the first electrical signal is a suspected danger signal; or
Comparing the collected arc signal value in the first electric signal with the collected arc signal value in the second electric signal, and when the difference between the arc signal value in the first electric signal and the average value of the arc signal values in the second electric signal is greater than a preset arc threshold value, judging that the first electric signal is a suspected danger signal.
9. The safety power utilization control method according to claim 8, wherein the step of processing the monitoring information, determining whether a field power utilization environment of the electric equipment is dangerous, and protecting the line of the electric equipment when the field power utilization environment is a dangerous power utilization environment comprises:
when the first electric signal is judged to be a suspected dangerous signal by the current magnitude signal and the monitoring information shows that the environmental temperature of the line where the electric equipment is located exceeds the preset temperature, the field electric environment of the electric equipment is judged to be a dangerous electric environment, and the line where the electric equipment is located is controlled to be disconnected; or
And when the first electric signal is judged to be a suspected dangerous signal by the arc signal and the monitoring information shows that the environment of the line where the electric equipment is located has the arc, judging that the field electric environment of the electric equipment is a dangerous electric environment, and controlling to isolate the line generating the arc.
10. The safety electricity utilization control method according to claim 9, further comprising:
the first electric signal corresponding to the dangerous power utilization environment is sent to other safety power utilization control devices for storage, so that the other safety power utilization control devices can directly carry out power utilization protection on the circuit when the collected electric signal is larger than the first electric signal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710972335.3A CN107608294B (en) | 2017-10-18 | 2017-10-18 | Safety electricity utilization control device and method |
| PCT/CN2017/117825 WO2019075906A1 (en) | 2017-10-18 | 2017-12-21 | Control apparatus and method for safe utilization of electric power |
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| CN201710972335.3A CN107608294B (en) | 2017-10-18 | 2017-10-18 | Safety electricity utilization control device and method |
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| CN107608294A CN107608294A (en) | 2018-01-19 |
| CN107608294B true CN107608294B (en) | 2020-04-10 |
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| WO2019075906A1 (en) | 2019-04-25 |
| CN107608294A (en) | 2018-01-19 |
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