Matrix type sensor helmet electroscope and electroscope method

Abstract

The invention discloses a matrix type sensor helmet electroscope and an electricity testing method, and belongs to the technical field of electricity testing. A matrix type sensor helmet electroscope comprises a helmet body, a matrix type electric field sensor is arranged on the helmet body through a rotating mechanism, a control circuit board is arranged in the helmet body, the rotating mechanism and the matrix type electric field sensor are both electrically connected with the control circuit board, and the control circuit board is connected with a voice broadcast device. Meanwhile, the invention discloses an electricity testing method based on the electroscope, the matrix type sensor helmet electroscope and the electricity testing method are adopted, the rotating mechanism is arranged, the matrix type electric field sensor is driven to rotate within a design angle, the maximum detection value is found, the intensity and direction of the electric field are calculated, and the electroscope is safer to use. And the voltage grade of the overhead high-voltage line is obtained according to the attenuation curvature, so that an operator can obtain the electric field data of the overhead cable more conveniently.

Description

Technical Field

[0001] The invention relates to the technical field of electrical testing, and in particular to a matrix sensor helmet electrical tester and an electrical testing method. Background Art

[0002] The rapid development of the power industry has led to an increasing number of electrical equipment in life and production. The increasing number of electrical equipment has also made the electromagnetic field environment of power consumption sites more and more complex. In the face of such a complex electric field environment, it has become increasingly difficult and dangerous to rely solely on existing electrical testing equipment to check the electrical equipment one by one. Therefore, it is necessary to develop a device that can quickly monitor the electric field potential around the electrical equipment and provide timely warnings for use by staff. For example, the announcement number CN206365529U discloses a smart helmet, including a helmet shell with a brim, both sides of the helmet shell are provided with mounting grooves, a wireless charging module is installed in one mounting groove, and an electric field detection module is installed in the other mounting groove. The electric field measurement module is used to measure the electric field strength nearby in real time, the three-color light distinguishes the safety status of the current environment through three colors, and the light guide column makes the alarm light visible inside and outside the helmet at the same time. The prior art also has the following problems: the electric field detection module is installed in a fixed manner, and can only detect the electric field strength in a single direction, and the safety factor is low. And it is impossible to analyze and determine the actual situation of the electric field, and it is impossible to provide safety guidance to the operator, and the practicality is poor. Summary of the invention

[0003] The purpose of the present invention is to provide a matrix sensor helmet electrometer and an electrometer testing method to solve the above technical problems.

[0004] To achieve the above-mentioned purpose, the present invention provides a matrix sensor helmet electroscope, including a helmet body, on which a matrix electric field sensor is arranged through a rotating mechanism, a control circuit board is arranged in the helmet body, the rotating mechanism and the matrix electric field sensor are electrically connected to the control circuit board, and the control circuit board is connected to a voice announcer.

[0005] Preferably, the rotating mechanism comprises a rotating drive motor, which is mounted on the front side of the helmet body, and the output shaft of the rotating drive motor is connected to a rotating arm, on which a matrix electric field sensor is mounted;

[0006] The rotary drive motor is electrically connected to the control circuit board.

[0007] Preferably, the rotating mechanism includes a rotating drive motor, which is mounted on the front side of the helmet body, the output shaft of the rotating drive motor is connected to a rotating arm, the rotating arm is connected to one end of a connecting rod, the other end of the connecting rod is connected to the middle of the mounting arm, the bottom end of the mounting arm is mounted on the helmet body, and the top of the mounting arm is mounted with a matrix electric field sensor;

[0008] The rotary drive motor is electrically connected to the control circuit board.

[0009] Preferably, an audible and visual alarm mechanism is also provided, which includes an arc-shaped mounting plate hinged on the side of the helmet body, on which a data display, a buzzer and a warning light are provided, and the data display, the buzzer and the warning light are all electrically connected to the control circuit board.

[0010] Preferably, the control circuit board is provided with a central processing unit, an A / D converter, a multi-channel signal conditioner, a voice processing module, a wireless module and a power module;

[0011] The matrix electric field sensor is electrically connected to the multi-channel signal conditioner, the multi-channel signal conditioner is electrically connected to the A / D converter, the A / D converter, the voice processing module, the wireless module and the power module are all electrically connected to the central processing unit; the voice processing module is connected to the voice announcer and the microphone.

[0012] Based on the above-mentioned matrix sensor helmet electrometer test method, the specific steps are as follows:

[0013] Step S1: Calibrate the matrix sensor helmet electroscope through the existing electric field generating device;

[0014] Step S2: After the operator wears the helmet body, the rotating mechanism is started to drive the matrix electric field sensor to swing and collect voltage data within a set angle in front of the operator;

[0015] Step S3: Select the maximum voltage value in the voltage data to calculate the electric field strength and the safety distance, and report the calculation results;

[0016] Step S4: Determine whether to issue an alarm based on the calculation result.

[0017] Preferably, in step S3,

[0018] The calculation formulas for the horizontal and vertical components of the electric field strength at any point in the charge calculation space are as follows:

[0019]

[0020] Among them, E x is the horizontal component of the electric field strength, m is the number of conductors, E ixR is the horizontal component of the field strength generated by the real charge of the i-th wire at that point; E xR E is the total amount of horizontal components of the field strength generated by all directed real charges at this point; ixI is the horizontal component of the field strength generated by the imaginary charge of the i-th wire at that point, E xI is the total amount of horizontal components of the field strength generated by the imaginary charges of all wires at this point, and j is an imaginary unit;

[0021] E y is the vertical component of the electric field strength, E iyR is the vertical component of the field strength generated by the real charge of the i-th wire at that point, E yR E is the total vertical component of the field strength generated by all directed real charges at this point; iyI is the vertical component of the field strength generated by the imaginary charge of the i-th wire at this point, E yI is the total amount of vertical components of the field strength generated by the imaginary charges of all wires at that point;

[0022]

[0023] Where ε is the dielectric constant of vacuum, Q i is the equivalent charge on the i-th wire, L i and L′ is the distance from the i-th wire to the calculation point and the distance from the i-th wire to the calculation point after mirroring, x i and i is the coordinate of the ith wire, x and y are the coordinates of the calculation point;

[0024]

[0025] Where [τ] is the m-order square matrix composed of the potential coefficients of each conductor after mirroring, Q i and U i are the equivalent charge and voltage to ground of the i-th conductor respectively.

[0026] Preferably, at the ground level there are:

[0027] E x =0

[0028] E=E x 2 +E y 2

[0029]

[0030] Among them, E is the composite field strength, a is the calculation point, b is the test point on the conductor, and U ab It is the potential difference from the test start point to the test end point.

[0031] Preferably, the overhead high-voltage line voltage curve is obtained according to the detection data, the voltage level of the overhead high-voltage line is obtained according to the curvature of the overhead high-voltage line voltage curve, and the direction of the center point of the high-voltage area is determined according to the rotation angle of the rotating mechanism of the maximum voltage value.

[0032] Therefore, the present invention adopts the above-mentioned matrix sensor helmet electrometer and electrometer testing method, which has the following beneficial effects:

[0033] (1) A rotating mechanism is provided to drive the matrix electric field sensor to rotate within the designed angle, find the maximum detection value, and calculate the electric field strength and direction, which is safer to use.

[0034] (2) The voltage level of the overhead high-voltage line is obtained based on the attenuation curvature, which makes it easier for operators to obtain the electric field data of the overhead cables.

[0035] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic diagram of the structure of a matrix sensor helmet electroscope according to Embodiment 1 of the present invention;

[0037] Figure 2 This is a circuit principle block diagram of the control circuit board of the present invention;

[0038] Figure 3 This is a schematic diagram of the structure of the rotating mechanism of Example 2 of the present invention;

[0039] Figure 4 It is the potential distribution diagram under the voltage level of 10kv and 35kv of the present invention;

[0040] Figure 5 It is the potential distribution diagram of the adjacent 10cm voltage level under the voltage level of 10kv and 35kv of the present invention;

[0041] Figure 6 This is the potential distribution diagram at different voltage levels from 10kv to 1000kv.

[0042] Reference numerals

[0043] 1. Helmet body; 2. Rotating mechanism; 21. Rotating drive motor; 22. Rotating arm; 23. Connecting rod; 24. Mounting arm; 3. Matrix electric field sensor; 4. Sound and light alarm mechanism; 41. Arc-shaped mounting plate; 42. Data display; 43. Buzzer; 44. Warning light. DETAILED DESCRIPTION

[0044] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the invented product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "setting", "installation", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0046] Example 1

[0047] like Figure 1 As shown, a matrix sensor helmet electroscope includes a helmet body 1, on which a matrix electric field sensor 3 is arranged through a rotating mechanism 2, a control circuit board is arranged in the helmet body 1, the rotating mechanism 2 and the matrix electric field sensor 3 are both electrically connected to the control circuit board, and the control circuit board is connected to a voice announcer.

[0048] The rotating mechanism 2 includes a rotating drive motor 21, which is installed on the front side of the helmet body 1. The output shaft of the rotating drive motor 21 is connected to a rotating arm 22, on which a matrix electric field sensor 3 is installed. The rotating drive motor 21 is electrically connected to the control circuit board, and the angle of the matrix electric field sensor 3 is adjusted by controlling the forward and reverse rotation of the rotating drive motor 21.

[0049] The technical solution of this embodiment is also provided with an audible and visual alarm mechanism 4, which includes an arc-shaped mounting plate 41 hinged on the side of the helmet body 1, and a data display 42, a buzzer 43 and a warning light 44 are provided on the arc-shaped mounting plate 41, and the data display 42, the buzzer 43 and the warning light 44 are all electrically connected to the control circuit board. When in use, the arc-shaped mounting plate 41 is moved to a position that is easy for operators to observe, so as to adapt to the usage habits of different operators, and when not in use, it is rotated to the top of the helmet body 1 for easy storage.

[0050] like Figure 2As shown, a central processing unit, an A / D converter, a multi-channel signal conditioner, a voice processing module, a wireless module and a power module are arranged on the control circuit board; the matrix electric field sensor 3 is electrically connected to the multi-channel signal conditioner, the multi-channel signal conditioner is electrically connected to the A / D converter, the A / D converter, the voice processing module, the wireless module and the power module are all electrically connected to the central processing unit; the voice processing module is connected to a voice announcer and a microphone, so as to realize voice broadcast and voice interaction.

[0051] Based on the above-mentioned matrix sensor helmet electrometer test method, the specific steps are as follows:

[0052] Step S1: Calibrate the matrix sensor helmet electroscope using an existing electric field generating device.

[0053] Step S2: After the operator wears the helmet body, the rotating mechanism is started to drive the matrix electric field sensor to swing and collect voltage data within a set angle in front of the operator.

[0054] Step S3: Select the maximum voltage value in the voltage data to calculate the electric field strength and the safety distance, and report the calculation results.

[0055] The calculation formulas for the horizontal and vertical components of the electric field strength at any point in the charge calculation space are as follows:

[0056]

[0057] Among them, E x is the horizontal component of the electric field strength, m is the number of conductors, E ixR is the horizontal component of the field strength generated by the real charge of the i-th wire at that point; E xR E is the total amount of horizontal components of the field strength generated by all directed real charges at this point; ixI is the horizontal component of the field strength generated by the imaginary charge of the i-th wire at that point, E xI is the total amount of horizontal components of the field strength generated by the imaginary charges of all wires at this point, and j is an imaginary unit;

[0058] E y is the vertical component of the electric field strength, E iyR is the vertical component of the field strength generated by the real charge of the i-th wire at that point, E yR E is the total vertical component of the field strength generated by all directed real charges at this point; iyI is the vertical component of the field strength generated by the imaginary charge of the i-th wire at this point, E yI is the total amount of vertical components of the field strength generated by the imaginary charges of all wires at that point;

[0059]

[0060] Where ε is the dielectric constant of vacuum, Q i is the equivalent charge on the i-th wire, L i and L′ is the distance from the i-th wire to the calculation point and the distance from the i-th wire to the calculation point after mirroring, x i and i is the coordinate of the ith wire, x and y are the coordinates of the calculation point;

[0061]

[0062] Where [τ] is the m-order square matrix composed of the potential coefficients of each conductor after mirroring, Q i and U i are the equivalent charge and voltage to ground of the i-th conductor respectively.

[0063] On the ground level there are:

[0064] E x =0

[0065] E=E x 2 +E y 2

[0066]

[0067] Among them, E is the composite field strength, a is the calculation point, b is the test point on the conductor, and U ab It is the potential difference from the test start point to the test end point.

[0068] Step S4: Determine whether to issue an alarm based on the calculation result.

[0069] The voltage curve of the overhead high-voltage line is obtained based on the detection data, the voltage level of the overhead high-voltage line is obtained based on the curvature of the voltage curve of the overhead high-voltage line, and the direction of the center point of the high-voltage area is determined based on the rotation angle of the rotating mechanism of the maximum voltage value. Figure 4 As shown in the figure, the curvature of the two curves under two voltage levels is compared, and the two curves are not fitted, so the matrix electroscope can distinguish overhead lines of different voltage levels. In order to test the performance of the matrix electroscope, Figure 5 In the figure, for voltage levels of 10 kv and 35 kv, the voltage values ​​of two adjacent points with a distance of 10 cm are subtracted and the obtained voltage values ​​are plotted. Figure 5 The curvatures of the two curves are obviously inconsistent, that is, the attenuation rates of the voltage curves at two points 10 cm apart at two voltage levels are inconsistent. Therefore, the matrix sensor can completely distinguish electrical equipment of different voltage levels by reading the potential attenuation of each detection point, and judge the direction and intensity of the high-voltage danger zone in front of the wearer.

[0070] In order to further simulate the difference in voltage distribution curve attenuation under different voltage levels, Figure 6 The distribution curves of nine voltage levels from 10kv to 1000kv are integrated (these curves are obtained by measuring the points relative to the zero potential of the earth). Figure 6 It can be seen that when the product is within a certain distance from the overhead line, the potential distribution curves of overhead lines of different voltage levels have a large difference in change range and attenuation rate, while when the distance is too far, the difference between the curves will become very small. Therefore, this product should be used within a suitable distance so that its identification function can be fully utilized.

[0071] Example 2

[0072] The difference between this embodiment and embodiment 1 is that: the rotating mechanism 2 is different, the rotating mechanism 2 includes a rotating drive motor 21, the rotating drive motor 21 is installed on the front side of the helmet body 1, the output shaft of the rotating drive motor 21 is connected to a rotating arm 22, the rotating arm 22 is connected to one end of a connecting rod 23, the other end of the connecting rod 23 is connected to the middle of a mounting arm 24, the bottom end of the mounting arm 24 is installed on the helmet body 1, and a matrix electric field sensor 3 is installed on the top of the mounting arm 24; the rotating drive motor 21 is electrically connected to the control circuit board. This application drives the mounting arm 24 to swing back and forth through the rotating drive motor 21 to achieve electric field detection within a set angle in front.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A matrix sensor helmet electroscope, comprising a helmet body, characterized in that: A matrix electric field sensor is arranged on the helmet body through a rotating mechanism, a control circuit board is arranged in the helmet body, the rotating mechanism and the matrix electric field sensor are electrically connected to the control circuit board, and the control circuit board is connected to a voice announcer.

2. The matrix sensor helmet electroscope according to claim 1, characterized in that: The rotating mechanism comprises a rotating drive motor, which is mounted on the front side of the helmet body, and the output shaft of the rotating drive motor is connected to a rotating arm, on which a matrix electric field sensor is mounted; The rotary drive motor is electrically connected to the control circuit board.

3. The matrix sensor helmet electroscope according to claim 1, characterized in that: The rotating mechanism includes a rotating drive motor, which is installed on the front side of the helmet body. The output shaft of the rotating drive motor is connected to a rotating arm, which is connected to one end of a connecting rod, and the other end of the connecting rod is connected to the middle of the mounting arm. The bottom end of the mounting arm is installed on the helmet body, and a matrix electric field sensor is installed on the top of the mounting arm. The rotary drive motor is electrically connected to the control circuit board.

4. The matrix sensor helmet electroscope according to claim 1, characterized in that: A sound and light alarm mechanism is also provided, which includes an arc-shaped mounting plate hinged on the side of the helmet body, on which a data display, a buzzer and a warning light are provided, and the data display, the buzzer and the warning light are all electrically connected to the control circuit board.

5. The matrix sensor helmet electroscope according to claim 1, characterized in that: The control circuit board is provided with a central processing unit, an A / D converter, a multi-channel signal conditioner, a voice processing module, a wireless module and a power module; The matrix electric field sensor is electrically connected to the multi-channel signal conditioner, the multi-channel signal conditioner is electrically connected to the A / D converter, the A / D converter, the voice processing module, the wireless module and the power module are all electrically connected to the central processing unit; the voice processing module is connected to the voice announcer and the microphone.

6. A matrix sensor helmet electroscope electroscope electroscope electroscope method based on any one of claims 1 to 5, characterized in that: The specific steps are as follows: Step S1: Calibrate the matrix sensor helmet electroscope through the existing electric field generating device; Step S2: After the operator wears the helmet body, the rotating mechanism is started to drive the matrix electric field sensor to swing and collect voltage data within a set angle in front of the operator; Step S3: Select the maximum voltage value in the voltage data to calculate the electric field strength and the safety distance, and report the calculation results; Step S4: Determine whether to issue an alarm based on the calculation result.

7. The method for testing electricity of a matrix sensor helmet electroscope according to claim 6, characterized in that: In step S3, The calculation formulas for the horizontal and vertical components of the electric field strength at any point in the charge calculation space are as follows: Among them, E x is the horizontal component of the electric field strength, m is the number of conductors, E ixR is the horizontal component of the field strength generated by the real charge of the i-th wire at that point; E xR E is the total amount of horizontal components of the field strength generated by all the real charges of the wires at that point; ixI is the horizontal component of the field strength generated by the imaginary charge of the i-th wire at that point, E xI is the total amount of horizontal components of the field strength generated by the imaginary charges of all wires at this point, and j is an imaginary unit; E y is the vertical component of the electric field strength, E iyR is the vertical component of the field strength generated by the real charge of the i-th wire at that point, E yR E is the total vertical component of the field strength generated by all the real charges of the wires at that point; iyI is the vertical component of the field strength generated by the imaginary charge of the i-th wire at this point, E yI is the total amount of vertical components of the field strength generated by the imaginary charges of all wires at that point; Where ε is the dielectric constant of vacuum, Q i is the equivalent charge on the i-th wire, L i and L′ is the distance from the i-th wire to the calculation point and the distance from the i-th wire to the calculation point after mirroring, x i and i is the coordinate of the ith wire, x and y are the coordinates of the calculation point; Where [τ] is the m-order square matrix composed of the potential coefficients of each conductor after mirroring, Q i and U i are the equivalent charge and voltage to ground of the i-th conductor respectively.

8. The method for testing electricity of a matrix sensor helmet electroscope according to claim 7, characterized in that: On the ground level there are: E x ＝0 E=E x 2 +E y 2 Among them, E is the composite field strength, a is the calculation point, b is the test point on the conductor, and U ab It is the potential difference from the test start point to the test end point.

9. The method for testing electricity of a matrix sensor helmet electroscope according to claim 8, characterized in that: The voltage curve of the overhead high-voltage line is obtained according to the detection data, the voltage level of the overhead high-voltage line is obtained according to the curvature of the voltage curve of the overhead high-voltage line, and the direction of the center point of the high-voltage area is determined according to the rotation angle of the rotating mechanism of the maximum voltage value.

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