CN211403565U - Intelligent electric shock prevention alarm - Google Patents
Intelligent electric shock prevention alarm Download PDFInfo
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- CN211403565U CN211403565U CN201922379025.8U CN201922379025U CN211403565U CN 211403565 U CN211403565 U CN 211403565U CN 201922379025 U CN201922379025 U CN 201922379025U CN 211403565 U CN211403565 U CN 211403565U
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Abstract
The utility model discloses an intelligent electric shock prevention alarm, which comprises an electric field sensor, a filtering and amplifying circuit, an electric field intensity display unit, a gear selection unit, an alarm unit and a singlechip data analysis and processing unit; one end of the filtering and amplifying circuit is connected with the electric field sensor, and the other end of the filtering and amplifying circuit is connected with the single chip microcomputer data analysis and processing unit; the electric field intensity display unit, the gear selection unit and the alarm unit are respectively connected with the singlechip data analysis and processing unit. The utility model provides a pair of electric shock alarm is prevented to intelligence, light in weight, small and exquisite nimble, installation and use are very convenient, and when the staff carelessly went into high-voltage electricity's danger area, the alarm can send the warning to arouse staff's vigilance, avoid the emergence of contact accident, can be suitable for the environment of different voltage classes, the range of application is wide.
Description
Technical Field
The embodiment of the utility model provides a relate to protection against electric shock alarm technical field, especially relate to an intelligence protection against electric shock alarm.
Background
The safety distance between human body and tool and 10kV live equipment is more than 0.7 m. In an electric power system, a 10kV electric power line is wide in coverage range, and the operation environment is relatively complex. The operation personnel need often overhaul on 10kV live line shaft tower, measure, anticorrosive, patrol inspection, tight pole tower bolt and clear away work such as foreign matter on the shaft tower. Generally, operators mostly rely on human eyes to visually determine the safe distance, and in the working process, along with the movement of personnel and tools and the influence of main and objective factors such as carelessness, severe weather and equipment electric leakage of the operators, the safe distance of 0.7 meter is difficult to guarantee in real time, and electric shock casualty accidents are very easy to cause. In addition, when the pole tower collapses, when the distribution lines single-phase fault ground connection is handled to heavy rain weather, also cause the site work personnel to electrocute easily.
SUMMERY OF THE UTILITY MODEL
The utility model provides an electric shock alarm is prevented to intelligence to solve the not enough of prior art.
In order to achieve the above object, the present invention provides the following technical solutions:
the embodiment of the utility model provides an intelligent electric shock prevention alarm, which comprises an electric field sensor, a filtering and amplifying circuit, an electric field intensity display unit, a gear selection unit, an alarm unit and a singlechip data analysis and processing unit; wherein the content of the first and second substances,
one end of the filtering and amplifying circuit is connected with the electric field sensor, and the other end of the filtering and amplifying circuit is connected with the single chip microcomputer data analysis and processing unit;
the electric field intensity display unit, the gear selection unit and the alarm unit are respectively connected with the singlechip data analysis and processing unit;
the electric field sensor is used for sensing the electric field intensity of the peripheral alternating current to obtain an electric field intensity alternating current signal;
the filtering and amplifying circuit is used for filtering and amplifying the alternating current signal of the electric field intensity, converting the alternating current signal into a direct current signal of the electric field intensity and providing the direct current signal of the electric field intensity to the single chip microcomputer data analysis and processing unit;
the single chip microcomputer data analysis processing unit is used for carrying out A/D conversion on the electric field intensity direct current signal to obtain an electric field intensity value; the electric field intensity value is compared with a preset electric field intensity limit value;
the gear selection unit is used for selecting gears corresponding to different voltage levels;
the alarm unit is used for receiving the control of the singlechip data analysis processing unit and giving an alarm to the outside;
and the electric field intensity display unit is used for receiving the control of the single chip microcomputer data analysis processing unit and displaying the electric field intensity value in real time.
Furthermore, the intelligent electric shock prevention alarm also comprises a power supply unit;
and the power supply unit is used for providing a working power supply for the electric field sensor, the filtering and amplifying circuit, the electric field intensity display unit, the gear selection unit, the alarm unit and the singlechip data analysis and processing unit.
Furthermore, the intelligent electric shock prevention alarm also comprises an insulating shell;
the electric field sensor, the electric field intensity display unit, the gear selection unit and the alarm unit are arranged on the insulating shell;
the filtering and amplifying circuit, the single chip microcomputer data analysis and processing unit and the power supply unit are arranged in the insulating shell.
Furthermore, in the intelligent electric shock prevention alarm, the electric field sensor is a capacitive single-plate electrode;
the capacitance type single-electrode plate electrodes are one or more, and the capacitance type single-electrode plate electrodes are respectively used for inducing electric fields distributed in different directions.
Furthermore, in the intelligent electric shock prevention alarm, the filtering and amplifying circuit comprises an RC low-pass filter, a second-order Butterworth low-pass filter and an amplifying circuit.
Furthermore, in the intelligent electric shock prevention alarm, the alarm unit comprises an alarm lamp, a loudspeaker and a vibrator;
the alarm lamp, the loudspeaker and the vibrator are respectively connected with the singlechip data analysis and processing unit.
Furthermore, in the intelligent electric shock prevention alarm, the singlechip data analysis and processing unit comprises a signal processing module and a singlechip controller;
the signal processing module is connected with the filtering and amplifying circuit and is used for converting the electric field intensity direct current signal into an electric field intensity value and providing the electric field intensity value to the single chip microcomputer controller;
the single chip microcomputer controller is connected with the signal processing module and used for comparing the electric field strength value with a preset electric field strength limit value, and when the electric field strength value exceeds the preset electric field strength limit value, the single chip microcomputer controller controls the alarm module to give an alarm and controls the electric field strength display unit to display the electric field strength value in real time.
The embodiment of the utility model provides a pair of electric shock alarm is prevented to intelligence, it is little, small and exquisite nimble to weigh, and installation and use is very convenient, and when the staff carelessly went into high-voltage electrified danger area, the alarm can send the warning to arouse staff's vigilance, avoid the emergence of contact accident, can be suitable for the environment of different voltage classes, the range of application is wide.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic structural view of an intelligent electric shock prevention alarm provided in a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a filtering and amplifying circuit according to an embodiment of the present invention.
Reference numerals:
the device comprises an electric field sensor 10, a filtering and amplifying circuit 20, an electric field intensity display unit 30, a gear selection unit 40, an alarm unit 50, a singlechip data analysis and processing unit 60 and a power supply unit 70.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention are clearly and completely described with reference to the drawings in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.
Furthermore, the terms "long", "short", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience of describing the present invention, but do not indicate or imply that the device or element referred to must have the specific orientation, operate in the specific orientation configuration, and thus, should not be construed as limiting the present invention.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Example one
Referring to fig. 1, an embodiment of the present invention provides an intelligent electric shock prevention alarm, which includes an electric field sensor 10, a filtering and amplifying circuit 20, an electric field strength display unit 30, a gear selection unit 40, an alarm unit 50, and a single chip microcomputer data analysis and processing unit 60; wherein the content of the first and second substances,
one end of the filtering and amplifying circuit 20 is connected with the electric field sensor 10, and the other end is connected with the single chip microcomputer data analysis processing unit 60;
the electric field intensity display unit 30, the gear selection unit 40 and the alarm unit 50 are respectively connected with the singlechip data analysis processing unit 60;
the electric field sensor 10 is used for sensing the electric field intensity of the peripheral alternating current to obtain an electric field intensity alternating current signal;
the filtering and amplifying circuit 20 is used for filtering and amplifying the electric field intensity alternating current signal, converting the electric field intensity alternating current signal into an electric field intensity direct current signal, and providing the electric field intensity direct current signal to the single chip microcomputer data analysis processing unit 60;
the single chip microcomputer data analysis processing unit 60 is configured to perform a/D conversion on the electric field strength direct current signal to obtain an electric field strength value; the electric field intensity value is compared with a preset electric field intensity limit value;
the gear selection unit 40 is used for selecting gears corresponding to different voltage levels;
the alarm unit 50 is used for receiving the control of the singlechip data analysis processing unit 60 and giving an alarm to the outside;
the electric field intensity display unit 30 is used for receiving the control of the single chip microcomputer data analysis processing unit 60 and displaying the electric field intensity value in real time.
Preferably, a power supply unit 70;
the power supply unit 70 is used for providing working power supply for the electric field sensor 10, the filtering and amplifying circuit 20, the electric field strength display unit 30, the gear selection unit 40, the alarm unit 50 and the single chip microcomputer data analysis processing unit 60.
Preferably, the device further comprises an insulating shell;
the electric field sensor 10, the electric field intensity display unit 30, the gear selection unit 40 and the alarm unit 50 are arranged on the insulating shell;
the filtering and amplifying circuit 20, the singlechip data analyzing and processing unit 60 and the power supply unit 70 are arranged in the insulating shell.
Preferably, the electric field sensor 10 is a capacitive unipolar plate electrode;
the capacitance type single-electrode plate electrodes are one or more, and the capacitance type single-electrode plate electrodes are respectively used for inducing electric fields distributed in different directions.
As shown in fig. 2, the filtering and amplifying circuit 20 preferably includes an RC low-pass filter, a second-order butterworth low-pass filter, and an amplifying circuit.
It should be noted that the external electric field signal measured by the electric field sensor 10 is input in the form of voltage, filtered by the RC low-pass filter and the second-order butterworth low-pass filter, and then subjected to signal amplification processing; the amplified signal is filtered again and then input to the single chip data analysis processing unit 60 for analysis. In order to prevent the over-high signal voltage from being connected in series with the singlechip data analysis processing unit 60, a voltage stabilizing diode is used at the output end of the amplifying circuit.
Preferably, the alarm unit 50 includes an alarm lamp, a speaker and a vibrator;
the alarm lamp, the loudspeaker and the vibrator are respectively connected with the singlechip data analysis and processing unit 60.
It should be noted that the utility model discloses can set for the limit value according to the standard of difference, divide into the syllogic and report an emergency and ask for help or increased vigilance.
The first section of near-electricity alarm criterion is as follows: determining the first section of near-electricity alarm criterion as 100V/m, and performing sound-light alarm to remind that high-voltage electrified bodies are around;
the second section of near-electricity alarm criterion is as follows: determining the second section of near-electricity alarm criterion as 1000V/m, and simultaneously carrying out acousto-optic and vibration alarm to remind an operator of approaching the safe operation distance;
third-stage exposure value alarm criterion: according to the national standard, when the measured electric field intensity is more than 4kV/m (public exposure limit), continuous sound and light alarm is carried out to remind that the position is not required to be located for a long time. And simultaneously, the electric field strength value is displayed in real time through the field strength display unit.
Preferably, the single chip microcomputer data analyzing and processing unit 60 comprises a signal processing module and a single chip microcomputer controller;
the signal processing module is connected with the filtering and amplifying circuit 20 and is used for converting the electric field intensity direct current signal into an electric field intensity value in an A/D mode and providing the electric field intensity value to the single chip microcomputer controller;
the single chip microcomputer controller is connected with the signal processing module and used for comparing the electric field strength value with a preset electric field strength limit value, and when the electric field strength value exceeds the preset electric field strength limit value, the single chip microcomputer controller controls the alarm module to give an alarm and controls the electric field strength display unit 30 to display the electric field strength value in real time.
Specifically, the single chip microcomputer data analysis processing unit 60 adopts a single chip microcomputer controller with the model number of C8051F020, and an ADC0 subsystem of the single chip microcomputer controller comprises a successive approximation register type ADC with 12-bit resolution and the maximum conversion rate of 100 ksps; the voltage reference of this ADC may be provided by the output of an internal DAC or externally; therefore, the device performs AD conversion using internal resources; in addition, the reference voltage is provided by an external chip REF192, the 2.5V voltage provided by the chip has high stability, and the maximum deviation of the output voltage is only 2 mV.
The embodiment of the utility model provides a pair of electric shock alarm is prevented to intelligence, it is little, small and exquisite nimble to weigh, and installation and use is very convenient, and when the staff carelessly went into high-voltage electrified danger area, the alarm can send the warning to arouse staff's vigilance, avoid the emergence of contact accident, can be suitable for the environment of different voltage classes, the range of application is wide.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (7)
1. An intelligent electric shock prevention alarm is characterized by comprising an electric field sensor, a filtering and amplifying circuit, an electric field strength display unit, a gear selection unit, an alarm unit and a singlechip data analysis and processing unit; wherein the content of the first and second substances,
one end of the filtering and amplifying circuit is connected with the electric field sensor, and the other end of the filtering and amplifying circuit is connected with the single chip microcomputer data analysis and processing unit;
the electric field intensity display unit, the gear selection unit and the alarm unit are respectively connected with the singlechip data analysis and processing unit;
the electric field sensor is used for sensing the electric field intensity of the peripheral alternating current to obtain an electric field intensity alternating current signal;
the filtering and amplifying circuit is used for filtering and amplifying the alternating current signal of the electric field intensity, converting the alternating current signal into a direct current signal of the electric field intensity and providing the direct current signal of the electric field intensity to the single chip microcomputer data analysis and processing unit;
the single chip microcomputer data analysis processing unit is used for carrying out A/D conversion on the electric field intensity direct current signal to obtain an electric field intensity value; the electric field intensity value is compared with a preset electric field intensity limit value;
the gear selection unit is used for selecting gears corresponding to different voltage levels;
the alarm unit is used for receiving the control of the singlechip data analysis processing unit and giving an alarm to the outside;
and the electric field intensity display unit is used for receiving the control of the single chip microcomputer data analysis processing unit and displaying the electric field intensity value in real time.
2. The intelligent electric shock protection alarm of claim 1, further comprising a power supply unit;
and the power supply unit is used for providing a working power supply for the electric field sensor, the filtering and amplifying circuit, the electric field intensity display unit, the gear selection unit, the alarm unit and the singlechip data analysis and processing unit.
3. The intelligent electric shock protection alarm of claim 2, further comprising an insulating housing;
the electric field sensor, the electric field intensity display unit, the gear selection unit and the alarm unit are arranged on the insulating shell;
the filtering and amplifying circuit, the single chip microcomputer data analysis and processing unit and the power supply unit are arranged in the insulating shell.
4. The intelligent electric shock protection alarm of claim 1, wherein the electric field sensor is a capacitive single-plate electrode;
the capacitance type single-electrode plate electrodes are one or more, and the capacitance type single-electrode plate electrodes are respectively used for inducing electric fields distributed in different directions.
5. The intelligent electric shock protection alarm of claim 1, wherein said filtering and amplifying circuit comprises an RC low pass filter, a second order butterworth low pass filter and an amplifying circuit.
6. The intelligent electric shock protection alarm of claim 1, wherein the alarm unit comprises an alarm lamp, a speaker and a vibrator;
the alarm lamp, the loudspeaker and the vibrator are respectively connected with the singlechip data analysis and processing unit.
7. The intelligent electric shock prevention alarm device according to claim 1, wherein the single chip microcomputer data analysis processing unit comprises a signal processing module and a single chip microcomputer controller;
the signal processing module is connected with the filtering and amplifying circuit and is used for converting the electric field intensity direct current signal into an electric field intensity value and providing the electric field intensity value to the single chip microcomputer controller;
the single chip microcomputer controller is connected with the signal processing module and used for comparing the electric field strength value with a preset electric field strength limit value, and when the electric field strength value exceeds the preset electric field strength limit value, the single chip microcomputer controller controls the alarm unit to give an alarm and controls the electric field strength display unit to display the electric field strength value in real time.
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| CN201922379025.8U CN211403565U (en) | 2019-12-25 | 2019-12-25 | Intelligent electric shock prevention alarm |
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| CN201922379025.8U CN211403565U (en) | 2019-12-25 | 2019-12-25 | Intelligent electric shock prevention alarm |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113093071A (en) * | 2021-04-08 | 2021-07-09 | 广东电网有限责任公司 | High-voltage operation safe distance detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113093071A (en) * | 2021-04-08 | 2021-07-09 | 广东电网有限责任公司 | High-voltage operation safe distance detection device |
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