CN106510043B - Powered instruction protector, method and the high voltage protection with the device take - Google Patents

Abstract

The invention provides a live indication protection device, method and high-voltage protective clothing with the device, wherein the device includes a central processing module, a sensing module, an alarm module and a protection module; when the device is close to a charged high-voltage line or a charged high-voltage device , the propagation direction of the polarized light emitted by the polarized light generating part is shifted, and the amount of light received by the polarized light receiving part is less than the conduction threshold of the photoresistor or photodiode, so that the photoresistor or photodiode is in a closed state; when the central processing module detects When the photoresistor or photodiode is in the off state, the central processing module triggers the alarm module to alarm; the protection module is used when the device touches the live high-voltage line or live high-voltage device, the insulation unit is used for insulation, and the current diversion unit is used to conduct the contacted current to the earth. The invention improves the indication accuracy of the charged indicating device and improves the safety of personnel.

Description

Live indicating protection device, method and high voltage protective clothing with the device

technical field

The invention relates to the technical field of electrification indication, in particular to an electrification indication protection device, a method and a high-voltage protective clothing with the device.

Background technique

With the rapid development of the economy, electricity has become an inseparable source of energy for thousands of households, resulting in a substantial increase in total electricity consumption. During peak power consumption, power transmission and distribution lines will run at full load or even short-term overload; and power lines and transmission towers cover a wide area, and the natural environment is harsh, resulting in many transmission line failures.

In order to ensure the continuity of power supply, power line operation and maintenance personnel need to repair power lines and equipment. In the repair or power maintenance site, in order to ensure the safety of operation and maintenance personnel, it is necessary to use live indication equipment to indicate the liveness of the circuit; however, the existing live indication equipment has limited indication effect and is easily damaged by high voltage breakdown, which leads to the loss of indication function , and there are no relevant protective measures, which has buried hidden dangers for the life safety of operation and maintenance personnel.

No effective solution has been proposed for the above-mentioned problems of poor indication effect and safety of the charged indicating device.

Contents of the invention

In view of this, the object of the present invention is to provide a liveness indicating protection device, method and high voltage protective clothing with the device, so as to improve the indication accuracy of the liveness indicating device and improve the safety of personnel.

In the first aspect, the embodiment of the present invention provides a live indication protection device, including a central processing module, and a sensing module, an alarm module, and a protection module respectively connected to the central processing module; the sensing module includes a magnetic field sensing unit; a magnetic field sensing The unit includes a polarized light generating part and a polarized light receiving part; the light channel direction of the polarized light receiving part is the same as the polarized light direction emitted by the polarized light generating part; the distance between the polarized light generating part and the polarized light receiving part is greater than a preset distance value; the polarized light receiving part includes a photoresistor or a photosensitive diode; the protection module includes an insulation unit and a current diversion unit; when the device is not close to a charged high-voltage line or a charged high-voltage device, the polarized light receiving part receives The amount of light is greater than the conduction threshold of the photoresistor or photodiode, and the polarized light propagates to the photoresistor or photodiode, so that the photoresistor or photodiode is in a conduction state; the conduction state includes that the resistance of the photoresistor or photodiode is less than the preset resistance threshold, Or the current through the photoresistor or photodiode is greater than the preset current threshold; polarized light includes linearly polarized light; when the device is close to a charged high-voltage line or a charged high-voltage device, the polarized light emitted by the polarized light generating part is in the magnetic field formed by the high voltage , the direction of propagation of the polarized light is shifted, and the amount of light received by the polarized light receiving part of the shifted polarized light is less than the conduction threshold of the photoresistor or photodiode, so that the photoresistor or photodiode is in the off state; the off state includes the photoresistor or photodiode The resistance of the photodiode is greater than the preset resistance threshold, or the current passing through the photoresistor or photodiode is less than the preset current threshold; the central processing module is used to detect whether the photoresistor or the photodiode is in an off or on state; when the central processing module detects When the photoresistor or photodiode is in the off state, the central processing module triggers the alarm module to alarm; the protection module is used when the device touches the live high-voltage line or the live high-voltage device, the insulation unit is used for insulation, and the current diversion unit is used for the contacted current. transmitted to the earth.

In combination with the first aspect, the embodiment of the present invention provides a first possible implementation manner of the first aspect, wherein, the above-mentioned polarized light generation component includes a light source, a substrate, a polarization direction adjustment component, and a reflection component; the polarization direction adjustment component includes a liquid crystal light Valve; reflective components include reflective sheet or reflective film;

The substrate and the polarization direction adjusting member are bonded by optical glue.

With reference to the first aspect, the embodiment of the present invention provides a second possible implementation manner of the first aspect, wherein a magneto-optical material is disposed between the polarized light generating component and the polarized light receiving component for propagating polarized light.

In combination with the first aspect, the embodiment of the present invention provides a third possible implementation manner of the first aspect, wherein the above sensing module further includes an infrared temperature sensing unit; the infrared temperature sensing unit includes a temperature detection subunit; When a live high-voltage line or an uncharged high-voltage device is used, the difference between the maximum value and the minimum value of the temperature in the area detected by the temperature detection subunit is less than the preset temperature threshold; when the device is close to the charged high-voltage line or charged high-voltage device, the temperature The difference between the maximum value and the minimum value of the temperature in the area detected by the detection sub-unit is greater than the preset temperature threshold; the central processing module is used to detect whether the difference is greater than the preset temperature threshold; when the central processing module detects that the difference is greater than When the preset temperature threshold is reached, the central processing module triggers the alarm module to alarm.

In combination with the third possible implementation of the first aspect, the embodiment of the present invention provides a fourth possible implementation of the first aspect, wherein the infrared temperature sensing unit further includes an object identification subunit; the temperature detection subunit includes Line temperature detection part and ambient temperature detection part; when the device is close to a live high-voltage line or a live high-voltage device, the object recognition subunit is used to identify a live high-voltage line or a live high-voltage device, and send the recognition result to the temperature detection subunit; line temperature detection part It is used to detect the temperature of live high-voltage lines or live high-voltage devices; the ambient temperature detection component is used to detect the ambient temperature of live high-voltage lines or live high-voltage devices; the central processing module is used to detect the difference between the temperature of live high-voltage lines or live high-voltage devices and the ambient temperature Whether the value is greater than the preset temperature threshold; when the central processing module detects that the difference is greater than the preset temperature threshold, the central processing module triggers an alarm module to alarm.

In combination with the third possible implementation manner of the first aspect or the fourth possible implementation manner of the first aspect, the embodiment of the present invention provides a fifth possible implementation manner of the first aspect, wherein the above-mentioned temperature detection subunit Includes infrared temperature sensor; infrared temperature sensor includes optical filter, thermistor and thermopile sensor.

With reference to the first aspect, the embodiment of the present invention provides a sixth possible implementation manner of the first aspect, wherein the above-mentioned alarm module includes an audible/optical alarm.

In a second aspect, an embodiment of the present invention provides a high-voltage protective clothing, the high-voltage protective clothing is provided with the above-mentioned electrification indicating protective device.

In combination with the second aspect, the embodiment of the present invention provides the first possible implementation of the second aspect, wherein, the insulating unit in the above-mentioned charging indicating protection device is arranged inside the high-voltage protective clothing, and is used to separate the human body from the high-voltage protective clothing. Insulation; the current diversion unit in the live indication protection device is arranged on the outside of the high-voltage protective clothing; the current diversion unit is also connected to the ground.

In the third aspect, the embodiment of the present invention provides a live indication protection method, including: when the device is not close to the live high-voltage line or the live high-voltage device, the polarized light receiving part receives the polarized light emitted by the polarized light generating part, and the light transmission amount is greater than that of the photoresistor Or photodiode conduction threshold, polarized light propagates to the photoresistor or photodiode, so that the photoresistor or photodiode is in the conduction state; the conduction state includes the resistance of the photoresistor or photodiode being less than the preset resistance threshold, or passing through the photoresistor Or the current of the photodiode is greater than the preset current threshold; when the device is close to a charged high-voltage line or a charged high-voltage device, the polarized light emitted by the polarized light generating part is in the magnetic field formed by the high voltage, and the propagation direction of the polarized light is shifted, and the polarized light The amount of light received by the light-receiving part of the shifted polarized light is less than the conduction threshold of the photoresistor or photodiode, so that the photoresistor or photodiode is in the off state; the off state includes that the resistance of the photoresistor or photodiode is greater than the preset resistance threshold, Or the current through the photoresistor or photodiode is less than the preset current threshold; the central processing module detects that the photoresistor or photodiode is in an off or on state; when the central processing module detects that the photoresistor or photodiode is in an off state, the central processing The module triggers the alarm module to alarm; when the device touches live high-voltage lines or live high-voltage devices, the insulation unit is used for insulation, and the current diversion unit is used to conduct the contacted current to the ground.

The embodiments of the present invention bring the following beneficial effects: the embodiment of the present invention provides a charging indicator protective device, method and high-voltage protective clothing with the device. When the device is in the magnetic field formed by a charged high-voltage line or a charged high-voltage device, The polarized light in the magnetic field sensing unit is deflected, and then the state of the photoresistor or photodiode changes, so that the charged high-voltage line or charged high-voltage device can be identified; when the device touches the charged high-voltage line or charged high-voltage device, the protection module can make the The human body is insulated from the electric current, and the electric current is channeled to ensure the safety of the personnel; the above method can improve the indication accuracy of the charged indicating device and improve the safety of the personnel.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

In order to make the above-mentioned objects, features and advantages of the present invention more comprehensible, preferred embodiments will be described in detail below together with the accompanying drawings.

Description of drawings

In order to more clearly illustrate the specific implementation of the present invention or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings that need to be used in the specific implementation or description of the prior art. Obviously, the accompanying drawings in the following description The drawings show some implementations of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative work.

Fig. 1 is a schematic structural diagram of a charged indicating protection device provided by an embodiment of the present invention;

Fig. 2 is a specific structural schematic diagram of a charged indicating protection device provided by an embodiment of the present invention;

Fig. 3 is a schematic structural diagram of a polarized light generating component provided by an embodiment of the present invention;

Fig. 4 is a flow chart of a live indication protection method provided by an embodiment of the present invention.

icon:

300-light source; 302-substrate; 304-polarization direction adjustment component; 306-reflection component.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. the embodiment. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Aiming at the problems of poor indication effect and safety of the above-mentioned charging indicating device, the embodiment of the present invention provides a charging indicating protection device, a method and a high-voltage protective clothing with the device; In the inspection and fault search, the following will be described through the embodiments.

Embodiment one:

Referring to the structural schematic diagram of a live indication protection device shown in FIG. 1, the device includes a central processing module 100, and a sensing module 102, an alarm module 104 and a protection module 106 respectively connected to the central processing module 100;

Above-mentioned sensing module 102 comprises magnetic field sensing unit 108; This magnetic field sensing unit 108 comprises polarized light generating part 110 and polarized light receiving part 112; The same; the distance between the polarized light generating part 110 and the polarized light receiving part 112 is greater than the preset distance value; the polarized light receiving part 112 includes a photoresistor or a photodiode; the above-mentioned protection module 106 includes an insulating unit 118 and a current dredging unit 120;

When the device is not close to the charged high-voltage line or the charged high-voltage device, the polarized light receiving part 112 receives the light passing amount of the polarized light emitted by the polarized light generating part 110 greater than the conduction threshold of the photoresistor or photodiode, and the polarized light propagates to the photoresistor or photodiode, Make the photoresistor or photodiode in a conduction state; the conduction state includes that the resistance of the photoresistor or photodiode is less than a preset resistance threshold, or the current through the photoresistor or photodiode is greater than a preset current threshold; the above-mentioned polarized light includes linearly polarized light;

Specifically, the distance between the above-mentioned polarized light generating component 110 and the polarized light receiving component 112 is used for the propagation of polarized light. Obvious deflection of the polarization angle; and the above-mentioned preset distance value also needs to consider the limitation of the actual use environmental conditions of the device, that is, if the device is installed in a small environmental space, the distance is within the guarantee of the deflection angle of the deflection light Under the premise, it can be appropriately reduced; when the device is installed in a larger environment space, the distance can be appropriately expanded, so that the polarized light can produce a larger deflection angle under the action of a magnetic field.

When the device is close to a charged high-voltage line or a charged high-voltage device, the polarized light emitted by the polarized light generating part 110 is in the magnetic field formed by the high voltage, the propagation direction of the polarized light is shifted, and the polarized light receiving part 112 receives the shifted polarized light The amount of light passing through the photoresistor or photodiode is less than the conduction threshold of the photoresistor or photodiode, so that the photoresistor or photodiode is in the off state; less than the preset current threshold;

Specifically, the Faraday effect (also known as Faraday rotation or magneto-optical rotation) is a magneto-optical effect that is an interaction of light waves with a magnetic field in a medium; the Faraday effect causes a rotation of the plane of polarization that is aligned with the direction of the magnetic field toward The components in the direction of light wave propagation are linearly proportional. Since the direction of the polarized light emitted by the polarized light receiving part and the polarized light generating part is the same, but the polarization angle of the polarized light will change during the propagation of the magnetic field, resulting in a decrease in the polarized light flux received by the polarized light receiving part. The conduction state of the photoresistor or photodiode in the component will change due to the change of the received luminous flux, so that the charged high-voltage line or charged high-voltage device can be identified.

The above-mentioned central processing module 100 is used to detect that the photoresistor or photodiode is in an off or on state; when the central processing module 100 detects that the photoresistor or photodiode is in an off state, the central processing module 100 triggers the above-mentioned alarm module 104 to alarm; specifically Specifically, the above-mentioned central processing module 100 may be a single-chip microcomputer, a digital signal processing chip, and the like.

The above-mentioned protection module 106 is used when the device is in contact with live high-voltage lines or live high-voltage devices, the above-mentioned insulation unit 118 is used for insulation, and the above-mentioned current diversion unit 120 is used for conducting the contacted current to the ground.

The embodiment of the present invention provides a charged indicating protection device. When the device is in the magnetic field formed by the charged high-voltage line or the charged high-voltage device, the polarized light in the magnetic field sensing unit is deflected, thereby changing the state of the photoresistor or photodiode , so that live high-voltage lines or live high-voltage devices can be identified; when the device comes into contact with live high-voltage lines or live high-voltage devices, the protection module can insulate the human body from the current and guide the current to ensure personnel safety; The indication accuracy of the indicating device is improved, and the safety of personnel is improved.

Embodiment two:

In order to describe in detail the charging indicating protection device provided in the first embodiment above, refer to the specific structural schematic diagram of a charging indicating protecting device shown in FIG. 2; the above sensing module also includes an infrared temperature sensing unit 200; The infrared temperature sensing unit 200 includes a temperature detection subunit 202;

When the device is close to an uncharged high-voltage line or an uncharged high-voltage device, the difference between the maximum value and the minimum temperature in the area detected by the temperature detection subunit 202 is less than a preset temperature threshold;

When the device is close to a charged high-voltage line or a charged high-voltage device, the difference between the maximum value and the minimum value of the temperature in the area detected by the temperature detection subunit 202 is greater than a preset temperature threshold;

The central processing module is used to detect whether the difference is greater than a preset temperature threshold; when the central processing module detects that the difference is greater than the preset temperature threshold, the central processing module triggers an alarm module to alarm.

For example, the above-mentioned temperature detection sub-unit can detect the temperature of various points within a certain range, usually the temperature of the charged high-voltage line or charged high-voltage device is higher than the ambient temperature, therefore, the maximum value of the temperature in the above-mentioned area is usually the charged high-voltage line or charged high-voltage device The minimum temperature in the above-mentioned area is usually the temperature at a point far away from live high-voltage lines or live high-voltage devices. When the charged high-voltage line or charged high-voltage device exists within a certain range detected by the temperature detection subunit, the temperature of the charged high-voltage line or charged high-voltage device is higher than the ambient temperature, and the difference is large. When there is no live high-voltage line or live high-voltage device within a certain range detected by the temperature detection subunit, the temperature difference at each point within the range is small, so it can be detected whether there is a live high-voltage line or live high-voltage device in the area.

The above method can detect charged high-voltage wires or charged high-voltage devices through infrared temperature sensing, which further improves the indication effect and accuracy of the charged indicating device.

Further, the infrared temperature sensing unit 200 also includes an object recognition subunit 204; the temperature detection subunit 202 includes a line temperature detection component 206 and an ambient temperature detection component 208;

When the device is close to the charged high-voltage line or the charged high-voltage device, the object identification subunit 204 is used to identify the charged high-voltage line or the charged high-voltage device, and the identification result is sent to the temperature detection subunit 202;

The line temperature detection part 206 is used to detect the temperature of the charged high-voltage line or the charged high-voltage device; the above-mentioned ambient temperature detection part 208 is used to detect the ambient temperature of the charged high-voltage line or the charged high-voltage device;

The central processing module is used to detect whether the difference between the temperature of the charged high-voltage line or the charged high-voltage device and the ambient temperature is greater than the preset temperature threshold; when the central processing module detects that the difference is greater than the preset temperature threshold, the central processing module triggers the alarm module to alarm .

For example, the above-mentioned object identification subunit can automatically identify whether there is a high-voltage line or a high-voltage device in the area; Camera device; the object recognition subunit compares the device in the real-time image acquired by the camera device with the pre-stored appearance picture, and if the similarity is greater than a certain set range, it can be determined that there is a high-voltage line or high-voltage device in the real-time image .

The above method first identifies the live high-voltage line or live high-voltage device, and then performs temperature detection on the identified live high-voltage line or live high-voltage device, so that the temperature detection of the device is more targeted, thereby improving the indication effect and accuracy of the live indication device .

Specifically, the temperature detection subunit includes an infrared temperature sensor; the infrared temperature sensor includes a filter, a thermistor and a thermopile sensor. The electric thermopile sensor is a kind of pyrolytic infrared sensor, which is composed of thermocouples.

In order to increase the deflection angle of the polarized light, a magneto-optical material 218 is arranged between the polarized light generating component and the polarized light receiving component for propagating polarized light. As a polarized light propagation medium, the magneto-optical material can increase the deflection angle of the polarized light under the action of a magnetic field, thereby increasing the change of the light flux received by the photoresistor or photodiode, thereby improving the sensitivity of the electrification indicating device.

In order to improve the alarm effect, the above-mentioned alarm module includes a sound/light alarm 220; the sound/light alarm 220 can send out both sound and light alarm signals at the same time, so as to remind the operation and maintenance personnel to be vigilant.

Referring to the schematic structural view of the polarized light generating part shown in Figure 3; the polarized light generating part includes a light source 300, a substrate 302, a polarization direction adjusting part 304 and a reflecting part 306; the polarizing direction adjusting part 304 includes a liquid crystal light valve; the reflecting part 306 includes a reflective sheet or a reflective film; the substrate 302 and the polarization direction adjusting component 304 are connected by optical glue. Polarized light can be generated by the above-mentioned polarized light generating component, and the direction of the polarized light can be adjusted according to actual application conditions.

Embodiment three:

Corresponding to the electrification indicating protection device provided in the first or second embodiment above, the embodiment of the present invention provides a high-voltage protective clothing, on which the above-mentioned electrification indicating protection device is arranged. Specifically, the insulating unit in the live indication protective device is arranged on the inner side of the high-voltage protective clothing, and is used to insulate the human body from the high-voltage protective clothing; The unit is also connected to ground.

The high-voltage protective clothing provided by the embodiment of the present invention has the same technical features as the charging indicator protection device provided by the above-mentioned embodiment, so it can also solve the same technical problem and achieve the same technical effect.

Embodiment four:

Corresponding to the live indication protection device provided in the above-mentioned embodiment 1 or embodiment 2, the embodiment of the present invention provides a live indication protection method, refer to the flow chart of a live indication protection method shown in Figure 4; The method includes the following steps:

Step S402, when the device is not close to the charged high-voltage line or the charged high-voltage device, the polarized light receiving part receives the polarized light emitted by the polarized light generating part, and the light passing through the polarized light is greater than the conduction threshold of the photoresistor or photodiode, and the polarized light propagates to the photoresistor or photodiode , making the photoresistor or photodiode in a conduction state; the conduction state includes that the resistance of the photoresistor or photodiode is less than a preset resistance threshold, or the current passing through the photoresistor or photodiode is greater than a preset current threshold;

Step S404, when the device is close to the charged high-voltage line or the charged high-voltage device, the polarized light emitted by the polarized light generating part is in the magnetic field formed by the high voltage, the propagation direction of the polarized light is shifted, and the polarized light receiving part receives the shifted polarized light The amount of light transmitted is less than the conduction threshold of the photoresistor or photodiode, so that the photoresistor or photodiode is in the off state; the off state includes the resistance of the photoresistor or photodiode being greater than the preset resistance threshold, or the current passing through the photoresistor or photodiode less than the preset current threshold;

Step S406, the central processing module detects that the photoresistor or the photodiode is in the off or on state; when the central processing module detects that the photoresistor or the photodiode is in the off state, the central processing module triggers the alarm module to alarm;

In step S408, when the protection module device touches a live high-voltage line or a live high-voltage device, the insulation unit is used for insulation, and the current diversion unit is used for conducting the contacted current to the ground.

Further, the above method also includes the following steps: (1) When the device is close to an uncharged high-voltage line or an uncharged high-voltage device, the difference between the maximum and minimum values of the temperature in the area detected by the temperature detection subunit is less than the preset temperature threshold; (2) when the device is close to the charged high-voltage line or charged high-voltage device, the difference between the maximum and minimum temperature in the area detected by the temperature detection subunit is greater than the preset temperature threshold; (3) the central processing The module detects whether the difference is greater than a preset temperature threshold; when the central processing module detects that the difference is greater than the preset temperature threshold, the central processing module triggers an alarm module to alarm.

In the live indication protection method provided by the embodiment of the present invention, when the live indication protection device is in the magnetic field formed by the live high-voltage line or the live high-voltage device, the polarized light in the magnetic field sensing unit is deflected, thereby making the state of the photoresistor or photodiode changes, so that the live high-voltage line or live high-voltage device can be identified; when the device touches the live high-voltage line or live high-voltage device, the human body can be insulated from the current through the protection module, and the current can be channeled to ensure the safety of personnel; the above methods can The indication accuracy of the electrified indicating device is improved, and the safety of personnel is improved.

In addition, in the description of the embodiments of the present invention, unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

If the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes. .

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

Finally, it should be noted that: the above-described embodiments are only specific implementations of the present invention, used to illustrate the technical solutions of the present invention, rather than limiting them, and the scope of protection of the present invention is not limited thereto, although referring to the foregoing The embodiment has described the present invention in detail, and those skilled in the art should understand that any person familiar with the technical field can still modify the technical solutions described in the foregoing embodiments within the technical scope disclosed in the present invention Changes can be easily thought of, or equivalent replacements are made to some of the technical features; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the scope of the present invention within the scope of protection. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (10)

1. A live indication protection device, characterized in that it comprises a central processing module, and a sensing module, an alarm module and a protection module respectively connected to the central processing module; The sensing module includes a magnetic field sensing unit; the magnetic field sensing unit includes a polarized light generating component and a polarized light receiving component; the optical channel direction of the polarized light receiving component is the same as the polarized light direction emitted by the polarized light generating component; The distance between the polarized light generating component and the polarized light receiving component is greater than a preset distance value; the polarized light receiving component includes a photosensitive resistor or a photosensitive diode; the protection module includes an insulation unit and a current diversion unit; When the device is not close to the charged high-voltage line or the charged high-voltage device, the polarized light receiving part receives the polarized light emitted by the polarized light generating part, and the amount of light transmitted by the polarized light generating part is greater than the conduction threshold of the photoresistor or photodiode, and the polarized light transmitted to the photoresistor or photodiode, so that the photoresistor or photodiode is in a conduction state; the conduction state includes that the resistance of the photoresistor or photodiode is less than a preset resistance threshold, or through the photoresistor The current of the resistor or photodiode is greater than a preset current threshold; the polarized light includes linearly polarized light; When the device is close to a charged high-voltage line or a charged high-voltage device, the polarized light emitted by the polarized light generating part is in the magnetic field formed by the high voltage, and the propagation direction of the polarized light is shifted, and the polarized light receiving part receives The amount of light passing through the polarized light that is shifted is less than the conduction threshold of the photoresistor or photodiode, so that the photoresistor or photodiode is in an off state; the off state includes that the resistance of the photoresistor or photodiode is greater than a preset resistance threshold, or the current through the photoresistor or photodiode is less than a preset current threshold; The central processing module is used to detect that the photoresistor or photodiode is in an off or on state; when the central processing module detects that the photoresistor or photodiode is in an off state, the central processing module triggers the Alarm module alarm; The protection module is used for when the device is in contact with a live high-voltage line or a live high-voltage device, the insulation unit is used for insulation, and the current diversion unit is used for conducting the contacted current to the ground. 2. The device according to claim 1, wherein the polarized light generating part comprises a light source, a substrate, a polarization direction adjusting part and a reflecting part; the polarization direction adjusting part comprises a liquid crystal light valve; the reflecting part comprises reflective sheet or reflective film; The substrate and the polarization direction adjusting component are connected by optical glue. 3 . The device according to claim 1 , wherein a magneto-optical material is arranged between the polarized light generating component and the polarized light receiving component for propagating polarized light. 4 . 4. The device according to claim 1, wherein the sensing module further comprises an infrared temperature sensing unit; the infrared temperature sensing unit comprises a temperature detection subunit; When the device is close to an uncharged high-voltage line or an uncharged high-voltage device, the difference between the maximum value and the minimum temperature in the area detected by the temperature detection subunit is less than a preset temperature threshold; When the device is close to a charged high-voltage line or a charged high-voltage device, the difference between the maximum value and the minimum value of the temperature in the area detected by the temperature detection subunit is greater than a preset temperature threshold; The central processing module is used to detect whether the difference is greater than a preset temperature threshold; when the central processing module detects that the difference is greater than the preset temperature threshold, the central processing module triggers the alarm module to alarm . 5. The device according to claim 4, wherein the infrared temperature sensing unit further includes an object identification subunit; the temperature detection subunit includes a line temperature detection component and an ambient temperature detection component; When the device is close to a charged high-voltage line or a charged high-voltage device, the object identification subunit is used to identify a charged high-voltage line or a charged high-voltage device, and send the identification result to the temperature detection subunit; The line temperature detection component is used to detect the temperature of the charged high-voltage line or the charged high-voltage device; the ambient temperature detection component is used to detect the ambient temperature of the charged high-voltage line or the charged high-voltage device; The central processing module is used to detect whether the difference between the temperature of the charged high-voltage line or the charged high-voltage device and the ambient temperature is greater than a preset temperature threshold; when the central processing module detects that the difference is greater than the preset temperature threshold, the central processing module triggers the alarm module to alarm. 6. The device according to claim 4 or 5, wherein the temperature detecting subunit comprises an infrared temperature sensor; and the infrared temperature sensor comprises an optical filter, a thermistor and a thermopile sensor. 7. The device according to claim 1, wherein the alarm module comprises an audible/optical alarm. 8. A high-voltage protective clothing, characterized in that, the high-voltage protective clothing is provided with the electrification indicating protective device according to any one of claims 1-7. 9. The high-voltage protective clothing according to claim 8, characterized in that, the insulation unit in the charged indicating protective device is arranged on the inner side of the high-voltage protective clothing, and is used to insulate the human body from the high-voltage protective clothing; The current diversion unit in the live indication protection device is arranged on the outside of the high voltage protective clothing; the current diversion unit is also connected to the ground. 10. A live indication protection method, characterized in that the method is applied to the live indication protection device according to any one of claims 1-7, the method comprising: When the device is not close to the charged high-voltage line or the charged high-voltage device, the polarized light receiving part receives the polarized light emitted by the polarized light generating part, and the amount of light passing through the polarized light is greater than the conduction threshold of the photosensitive resistor or photodiode, and the polarized light transmitted to the photoresistor or photodiode, so that the photoresistor or photodiode is in a conduction state; the conduction state includes that the resistance of the photoresistor or photodiode is less than a preset resistance threshold, or through the photoresistor The current of the resistor or photodiode is greater than the preset current threshold; When the device is close to a charged high-voltage line or a charged high-voltage device, the polarized light emitted by the polarized light generating part is in the magnetic field formed by the high voltage, and the propagation direction of the polarized light is shifted, and the polarized light receiving part receives The amount of light passing through the polarized light that is shifted is less than the conduction threshold of the photoresistor or photodiode, so that the photoresistor or photodiode is in an off state; the off state includes that the resistance of the photoresistor or photodiode is greater than a preset resistance threshold, or the current through the photoresistor or photodiode is less than a preset current threshold; The central processing module detects that the photoresistor or photodiode is in an off or on state; when the central processing module detects that the photoresistor or photodiode is in an off state, the central processing module triggers the alarm module Call the police; When the device is in contact with a live high-voltage line or a live high-voltage device, the insulation unit is used for insulation, and the current diversion unit is used for conducting the contacted current to the ground.