An intelligent directional electroscope

Abstract

The present invention discloses an intelligent directional electroscope, comprising an electroscope and an adjustable pan-tilt platform. The electroscope comprises an insulating housing, a detection antenna disposed at the upper end of the insulating housing, a display screen embedded in the side of the housing, and a host module disposed at the inner end of the housing. The adjustable pan-tilt platform is fixedly connected to the bottom of the insulating housing and is controlled by the host module. The adjustable pan-tilt platform adjusts the direction of the electroscope according to the direction of the magnetic field and determines the charge condition around the charged object based on the angular difference between the direction of the electroscope and the charged object. The electroscope detects and calculates the electromagnetic signal of the electroscope, and drives the adjustable pan-tilt platform to adjust the direction of the electroscope and issue an alarm based on the electromagnetic signal. The deviation between the direction of the electroscope and the charged object determines whether there are other charged objects around the charged object, and the approximate location of the remaining charged objects is determined based on the direction of the electroscope, providing a safety warning for on-site test personnel and directional guidance for further searches.

Description

Technical Field

[0001] The present invention relates to the technical field of power detection equipment, and in particular to an intelligent directional electroscope. Background Art

[0002] An electroscope is an instrument used to test whether an object is electrically charged. Based on the test method, electroscopes can be categorized as either contact or non-contact. Non-contact electroscopes are a new type of electroscope that do not come into direct contact with the object being tested and are widely used to test the electrical charge of dangerous objects such as high-voltage lines. One type of non-contact electroscope currently available consists of an electric field sensor, a processing circuit, and a signal indicator. This non-contact electroscope detects the electric field strength of the object being tested to determine whether it is electrically charged, and then signals the presence or absence of electrical charge.

[0003] Currently, there are AC direct-contact testers for voltages below 500kV and UHV ±800kV DC testers in China. However, precision instruments suitable for non-contact testing of substation switchgear are rare on the market. A patent application, 201510097694.X, filed by China Three Gorges University, discloses a non-contact high-voltage tester. The application addresses the detection of 50Hz power frequency signals, including AC signal testers with voltages of 10kV and 35kV. The tester utilizes a voltage-controlled oscillator module and ultrasonic ranging, using an STM8S series microcontroller as the microprocessor. This solution suffers from low accuracy and slow response speed. Furthermore, it cannot accurately locate and predict the presence of charged objects in the test area. When multiple charged objects are located near the object to be tested, it cannot provide warnings or general directional guidance, posing a safety hazard to testers. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that traditional electroscopes cannot warn and indicate the general direction of multiple charged objects at the test site. An intelligent directional electroscope is designed to detect and calculate the electromagnetic signal of the electroscope, and drive the adjustable pan-tilt head according to the electromagnetic signal to adjust the direction of the electroscope and issue an alarm. According to the deviation value between the direction of the electroscope and the charged object, it is determined whether there are other charged objects around the charged object, and the general direction of the remaining charged objects is determined according to the direction of the electroscope. While providing a safety warning for the work of on-site test personnel, it provides directional guidance for the search and detection of other charged objects on the site.

[0005] A technical solution provided in an embodiment of the present invention is an intelligent directional electroscope, including an electroscope and an adjustable pan-tilt head. The electroscope includes an insulating shell, a detection antenna arranged at the upper end of the insulating shell, a display screen nested in the side of the shell, and a host module arranged at the inner end of the shell; the adjustable pan-tilt head is fixedly connected to the bottom of the insulating shell, and the adjustable pan-tilt head is controlled by the host module. The direction of the electroscope is directionally adjusted according to the direction of the magnetic field, and the charging condition around the charged body is determined according to the angular difference between the direction of the electroscope and the charged body.

[0006] In this solution, the position of the charged object to be detected is first determined. The host module detects and calculates the electromagnetic signal of the electroscope, and drives the adjustable pan-tilt head according to the electromagnetic signal to adjust the direction of the electroscope and issue an alarm. Based on the deviation value between the direction of the electroscope and the charged object, it is determined whether there are other charged objects around the charged object, and the general orientation of the remaining charged objects is determined based on the direction of the electroscope. This provides a safety warning for the on-site test personnel's operations and provides directional guidance for the search and detection of other charged objects on site.

[0007] Preferably, the host module includes a main control chip and a first motor drive module, a voltage regulating module, a second motor drive module, a signal conversion module, a ranging module, a display module, a power supply module and an alarm module which are electrically connected to the main control chip in sequence, wherein the signal conversion module is electrically connected to the detection antenna; the display module is electrically connected to the display screen, the voltage regulating module is electrically connected to the voltage regulating knob provided on the shell, the ranging module is electrically connected to the distance sensor provided at the upper end of the insulating shell, and the alarm module is electrically connected to the alarm light.

[0008] In this solution, the distance measuring module is used to measure the distance between the charged body and the electroscope, and determine the appropriate safety isolation distance according to the size of the electric field; the display module is used to display the test results and display the alarm warning sign; the first motor drive module and the second motor drive module are used to control the corresponding motors to execute corresponding action instructions according to the first motor adjustment signal and the second motor adjustment signal sent by the main control chip; the signal conversion module is used to transform the electromagnetic signal of the detection antenna; the distance measuring module is used to convert the signal collected by the distance sensor; the voltage regulating module is based on; the power supply module adopts a low-voltage DC power supply and a 103450 type lithium rechargeable battery; the voltage regulating module selects the appropriate gear through the gear adjustment button according to the voltage level of the measured charged body; the alarm module is an audible and visual alarm device, which will emit an alarm sound with automatically adjusted frequency and volume. The volume is automatically adjusted with the distance from the charged body. The closer to the electroscope, the louder the alarm signal and the faster the frequency.

[0009] Preferably, the adjustable gimbal includes a first fixed seat, a first motor arranged in the first fixed seat, a second fixed seat, a second motor arranged in the second fixed seat, and a grip rod fixedly connected to the bottom end of the second fixed seat, the output shaft of the first motor is fixedly connected to the bottom of the insulating shell, and the output shaft of the second motor is fixedly connected to the bottom end of the first fixed seat; the first motor is controlled by a first motor drive module, and the second motor is controlled by a second motor drive module.

[0010] In this solution, the first motor is used to perform adjustment in the horizontal direction, and the second motor is used to perform adjustment in the vertical direction. The mutual cooperation between the first motor and the second motor can perform adjustment in any direction in the spatial position.

[0011] Preferably, the detection antenna includes a multi-stage flat antenna and a single-stage antenna.

[0012] In this solution, a single flat-panel antenna has a very strong directional limitation for receiving electric field signals. When a single flat-panel antenna is parallel to the direction of the electric field lines emitted by the electrode, the single flat-panel antenna is very likely to not receive the electric field signal and thus cannot send the test signal. Therefore, three flat-panel antennas are designed to be perpendicular to each other in pairs to ensure that electric field signals in any direction can be received, thereby ensuring the accuracy of the test and ensuring that there is no missed report of live electricity. At the same time, the electroscope is attached with a monopole antenna with a smaller diameter as an auxiliary test antenna. In some cases, due to the cabinet design or the presence of a metal isolation net on the outer layer of the test window, the built-in multi-stage flat-panel antenna cannot be placed in a good test position for test electricity. In this case, the monopole antenna can be used as the test antenna for test electricity to ensure the on-site adaptability of the electroscope. When the monopole antenna and the built-in multi-stage flat-panel antenna are used simultaneously for test electricity, if either the monopole antenna or the built-in multi-stage flat-panel antenna receives an electric field signal exceeding a certain threshold, the electroscope will issue a live electricity alarm.

[0013] Preferably, the multi-stage flat antenna includes three flat antennas designed to be perpendicular to each other in pairs, the three flat antennas including a first flat antenna set to the X-axis, a second flat antenna set to the Y-axis, and a third flat antenna set to the Z-axis. The main control chip warns the discharge body and adjusts the direction of the electroscope according to the size and direction of the electromagnetic signals received by the three flat antennas.

[0014] Preferably, the main control chip warns the discharge object and adjusts the direction of the electroscope according to the size and direction of the electromagnetic signals received by the three planar antennas, including:

[0015] Identify the charged object and adjust the direction of the multi-stage flat antenna to the position direction of the discharge object;

[0016] Obtain electromagnetic signals from three planar antennas respectively;

[0017] The voltage corresponding to the electromagnetic signal in different electric field directions is calculated based on the field strength formula; the actual voltage value is obtained by performing vector operation on the voltage, and is compared with the set voltage threshold to determine whether to alarm;

[0018] Synchronously, the three electric field directions of the discharge body are calculated according to trigonometric functions, and the first flat antenna is used as the positioning direction to obtain the angle values of the three electric field directions relative to the first flat antenna, the second flat antenna, and the third flat antenna; the angle difference between the measurement point and the charged body is determined by the three angle values, and the host module adjusts the direction of the electroscope according to the angle difference, determines the charged condition around the charged body according to the direction of the electroscope, and then reminds the test personnel to confirm the charged condition of the on-site equipment again.

[0019] Preferably, the host module adjusts the direction of the electroscope according to the angle difference, including:

[0020] The main control chip generates a first motor adjustment signal and a second motor adjustment signal according to the angle difference;

[0021] The first motor driving module drives the first motor to execute the adjustment command according to the first motor adjustment signal;

[0022] The second motor driving module drives the second motor to execute the adjustment command according to the second motor adjustment signal.

[0023] Beneficial effects of the present invention: The present invention designs an intelligent directional electroscope, which detects and calculates the electromagnetic signal of the electroscope, drives the adjustable pan-tilt head according to the electromagnetic signal to adjust the direction of the electroscope and issue an alarm, determines whether there are other charged bodies around the charged body according to the deviation value between the direction of the electroscope and the charged body, and determines the approximate orientation of the remaining charged bodies according to the direction of the electroscope, providing a safety warning for the work of on-site test personnel while providing directional guidance for the search and detection of other charged bodies on the site.

[0024] The above content of the invention is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Other features, objects, and advantages of the present invention will become more apparent upon reading the detailed description of the non-limiting embodiments made with reference to the following drawings. The drawings are for the purpose of illustrating preferred embodiments only and are not to be construed as limiting the present invention. Like reference characters are used throughout the drawings to designate like parts.

[0026] Figure 1 This is a structural diagram of an intelligent directional electroscope of the present invention.

[0027] Figure 2 Schematic diagram of the structure of the multi-stage flat antenna of the present invention.

[0028] Figure 3 Schematic diagram of the structure of the multi-stage flat antenna of the present invention.

[0029] Explanation of the marks in the figure: 11-insulating shell, 12-detection antenna, 13-display screen, 21-first fixing seat, 22-first motor, 23-second fixing seat, 24-second motor, 25-grip, 121-first flat antenna, 122 second flat antenna, 123-third flat antenna, 3-charged body. DETAILED DESCRIPTION

[0030] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific implementation method described herein is only an optimal embodiment of the present invention, which is only used to explain the present invention and does not limit the scope of protection of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] Before discussing the exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flow charts. Although the flow charts describe the operations (or steps) as sequential processes, many of the operations (or steps) therein can be performed in parallel, concurrently, or simultaneously. In addition, the order of the operations can be rearranged. The process can be terminated when its operations are completed, but can also have additional steps not included in the figures; the process can correspond to a method, function, procedure, subroutine, subprogram, etc.

[0032] Example: Figure 1 As shown, an intelligent directional electroscope consists of an electroscope and an adjustable pan-tilt stage. The electroscope includes an insulating shell 11, a detection antenna 12 arranged at the upper end of the insulating shell, a display screen 13 nested in the side of the shell, and a host module (not shown) arranged at the inner end of the shell; the adjustable pan-tilt stage is fixedly connected to the bottom of the insulating shell, and the adjustable pan-tilt stage is controlled by the host module. The direction of the electroscope is directionally adjusted according to the direction of the magnetic field, and the charging condition around the charged body is determined according to the angular difference between the direction of the electroscope and the charged body 3.

[0033] In this embodiment, the position of the charged object to be detected is first determined, the host module detects and calculates the electromagnetic signal of the test object, and drives the adjustable pan-tilt head according to the electromagnetic signal to adjust the direction of the test object and issue an alarm. According to the deviation value between the direction of the test object and the charged object, it is determined whether there are other charged objects around the charged object, and the general orientation of the remaining charged objects is determined according to the direction of the test object. This provides a safety warning for the on-site test personnel's operations and provides directional guidance for the search and detection of other charged objects on the site.

[0034] The host module includes a main control chip and a first motor drive module, a voltage regulation module, a second motor drive module, a signal conversion module, a ranging module, a display module, a power supply module and an alarm module which are electrically connected to the main control chip in sequence. The signal conversion module is electrically connected to the detection antenna; the display module is electrically connected to the display screen, the voltage regulation module is electrically connected to the voltage regulation knob provided on the shell, the ranging module is electrically connected to the distance sensor provided at the upper end of the insulating shell, and the alarm module is electrically connected to the alarm light.

[0035] In this embodiment, the distance measuring module is used to measure the distance between the charged body and the electroscope, and determine the appropriate safety isolation distance according to the size of the electric field; the display module is used to display the test results and display the alarm warning sign; the first motor drive module and the second motor drive module are used to control the corresponding motors to execute corresponding action instructions according to the first motor adjustment signal and the second motor adjustment signal issued by the main control chip; the signal conversion module is used to transform the electromagnetic signal of the detection antenna; the distance measuring module is used to convert the signal collected by the distance sensor; the voltage regulating module is based on; the power supply module adopts a low-voltage DC power supply and a 103450 type lithium rechargeable battery; the voltage regulating module selects the appropriate gear through the gear adjustment button according to the voltage level of the measured charged body; the alarm module is an audible and visual alarm device, which will emit an alarm sound with automatically adjusted frequency and volume. The volume is automatically adjusted with the distance from the charged body. The closer to the electroscope, the louder the alarm signal sound and the faster the frequency.

[0036] The adjustable gimbal includes a first fixed seat 21, a first motor 22 arranged in the first fixed seat, a second fixed seat 23, a second motor 24 arranged in the second fixed seat, and a grip 25 fixedly connected to the bottom end of the second fixed seat. The output shaft of the first motor is fixedly connected to the bottom of the insulating shell, and the output shaft of the second motor is fixedly connected to the bottom end of the first fixed seat; the first motor is controlled by a first motor drive module, and the second motor is controlled by a second motor drive module.

[0037] In this solution, the first motor is used to perform adjustment in the horizontal direction, and the second motor is used to perform adjustment in the vertical direction. The mutual cooperation between the first motor and the second motor can perform adjustment in any direction in the spatial position.

[0038] Preferably, the detection antenna includes a multi-stage flat antenna and a single-stage antenna.

[0039] In this embodiment, a single flat antenna has a very strong directional limitation on the reception of electric field signals. When the single flat antenna is parallel to the direction of the electric field lines emitted by the electrode, the single flat antenna is very likely to not receive the electric field signal and thus cannot send the test signal. Therefore, three flat antennas are designed to be perpendicular to each other in pairs to ensure that electric field signals in any direction can be received, thereby ensuring the accuracy of the test and ensuring that there is no missed report of live electricity. At the same time, the electroscope is attached with a monopole antenna with a smaller diameter as an auxiliary test antenna. In some cases, due to the cabinet design or the presence of a metal isolation net on the outer layer of the test window, the built-in multi-stage flat antenna cannot be placed in a good test position for test electricity. In this case, the monopole antenna can be used as the test antenna for test electricity to ensure the on-site adaptability of the electroscope. When the monopole antenna and the built-in multi-stage flat antenna are used simultaneously for test electricity, if any antenna of the monopole antenna or the built-in multi-stage flat antenna receives an electric field signal exceeding a certain threshold, the electroscope will issue a live electricity alarm.

[0040] like Figure 2 As shown, the multi-stage flat antenna includes three flat antennas designed to be perpendicular to each other in pairs. The three flat antennas include a first flat antenna 121 set to the X axis, a second flat antenna 122 set to the Y axis, and a third flat antenna 123 set to the Z axis. The main control chip warns the discharge body and adjusts the direction of the electroscope based on the size and direction of the electromagnetic signals received by the three flat antennas.

[0041] The main control chip warns the discharge object and adjusts the direction of the electroscope according to the size and direction of the electromagnetic signals received by the three flat antennas, including:

[0042] Identify the charged object and adjust the direction of the multi-stage flat antenna to the position direction of the discharge object;

[0043] Obtain electromagnetic signals from three planar antennas respectively;

[0044] The voltage corresponding to the electromagnetic signal in different electric field directions is calculated based on the field strength formula; the actual voltage value is obtained by performing vector operation on the voltage, and is compared with the set voltage threshold to determine whether to alarm;

[0045] Synchronously, the three electric field directions of the discharge body are calculated according to trigonometric functions, and the first flat antenna is used as the positioning direction to obtain the angle values of the three electric field directions relative to the first flat antenna, the second flat antenna, and the third flat antenna; the angle difference between the measurement point and the charged body is determined by the three angle values, and the host module adjusts the direction of the electroscope according to the angle difference, determines the charged condition around the charged body according to the direction of the electroscope, and then reminds the test personnel to confirm the charged condition of the on-site equipment again.

[0046] Specifically, such as Figure 3 As shown, according to the field strength formula E = kQ / r 2 =U / d, where r is the distance from the charged body to the electroscope, Q is the charge of the charged body, U is the voltage between the charged body and the electroscope, and d is the distance from the charged body to the electroscope. The formula U=kQd / r is obtained. 2 When using a multi-level flat panel antenna for electrical testing, the parameters k, Q, and r are fixed, but the d value corresponding to each flat panel antenna is different. According to the formula, U1=kQd1 / r 2 , U2=kQd2 / r 2 , U3=kQd3 / r 2 , where d1 is the vertical distance from the charged object to the first flat antenna, d2 is the vertical distance from the charged object to the second flat antenna, and d3 is the vertical distance from the charged object to the third flat antenna. The three voltage numerical vectors are calculated and then vector calculation is performed to make a judgment. That is, the final value U obtained by the flat antenna test is U=U1+U2+U3. If U exceeds the set voltage threshold, a charged alarm is issued.

[0047] At the same time, the approximate direction of the integrated electric field can be determined based on the magnitude of the three voltage values. That is, using the trigonometric function calculation formula and the X-axis direction of the flat antenna as the positioning direction, tanθ1=d2 / d1=U2 / U1, tanθ2=d3 / d2=U3 / U2, and tanθ3=d1 / d3=U1 / U3 are calculated. The angles θ1, θ2, and θ3 are calculated, and the direction of the electric field is determined by these three angles. This angle determination can effectively determine the azimuth relationship between the electric field direction and the measurement point. If the direction of the measurement point is inconsistent with the electric field direction or the deviation value is greater than the set angle threshold, such as θ1 being 30°, it indicates that other charged objects in the vicinity are affecting the test judgment. On-site test personnel need to further determine the surrounding charged conditions to avoid electric shock accidents. Furthermore, the general direction of the remaining charged objects is determined based on the direction of the test object for search, improving search efficiency.

[0048] The host module adjusts the direction of the electroscope according to the angle difference, including:

[0049] The main control chip generates a first motor adjustment signal and a second motor adjustment signal according to the angle difference;

[0050] The first motor driving module drives the first motor to execute the adjustment command according to the first motor adjustment signal;

[0051] The second motor driving module drives the second motor to execute the adjustment command according to the second motor adjustment signal.

[0052] The specific embodiment described above is a preferred embodiment of an intelligent directional electroscope of the present invention, and is not intended to limit the specific implementation scope of the present invention. The scope of the present invention includes but is not limited to this specific embodiment. Any equivalent changes made in accordance with the shape and structure of the present invention are within the scope of protection of the present invention.

Claims

1. An intelligent directional electroscope, characterized in that: The device comprises an electroscope and an adjustable pan-tilt platform. The electroscope comprises an insulating shell, a detection antenna arranged at the upper end of the insulating shell, a display screen nested in the side of the shell, and a host module arranged at the inner end of the shell. The adjustable pan-tilt platform is fixedly connected to the bottom of the insulating shell and is controlled by the host module. The direction of the electroscope is directionally adjusted according to the direction of the magnetic field, and the charging condition around the charged body is determined according to the angular difference between the direction of the electroscope and the charged body.

2. The intelligent directional electroscope according to claim 1, characterized in that: The host module includes a main control chip and a first motor drive module, a voltage regulation module, a second motor drive module, a signal conversion module, a ranging module, a display module, a power supply module and an alarm module electrically connected to the main control chip in sequence, the signal conversion module is electrically connected to the detection antenna; the display module is electrically connected to the display screen, the voltage regulation module is electrically connected to the voltage regulation knob provided on the shell, the ranging module is electrically connected to the distance sensor provided at the upper end of the insulating shell, and the alarm module is electrically connected to the alarm light.

3. The intelligent directional electroscope according to claim 2, characterized in that: The adjustable gimbal includes a first fixed seat, a first motor arranged in the first fixed seat, a second fixed seat, a second motor arranged in the second fixed seat, and a grip rod fixedly connected to the bottom end of the second fixed seat, the output shaft of the first motor is fixedly connected to the bottom of the insulating shell, and the output shaft of the second motor is fixedly connected to the bottom end of the first fixed seat; the first motor is controlled by a first motor drive module, and the second motor is controlled by a second motor drive module.

4. The intelligent directional electroscope according to claim 3, characterized in that: The detection antenna includes a multi-stage flat antenna and a single-stage antenna.

5. The intelligent directional electroscope according to claim 4, characterized in that: The multi-stage flat antenna includes three flat antennas designed to be perpendicular to each other in pairs. The three flat antennas include a first flat antenna set on the X axis, a second flat antenna set on the Y axis, and a third flat antenna set on the Z axis. The main control chip warns the discharge body and adjusts the direction of the electroscope according to the size and direction of the electromagnetic signals received by the three flat antennas.

6. The intelligent directional electroscope according to claim 5, characterized in that: The main control chip warns the discharge object and adjusts the direction of the electroscope according to the size and direction of the electromagnetic signals received by the three flat antennas, including: Identify the charged object and adjust the direction of the multi-stage flat antenna to the position direction of the discharge object; Obtain electromagnetic signals from three flat antennas respectively; The voltage corresponding to the electromagnetic signal in different electric field directions is calculated based on the field strength formula; the actual voltage value is obtained by performing vector operation on the voltage, and is compared with the set voltage threshold to determine whether to alarm; Synchronously, the three electric field directions of the discharge body are calculated according to trigonometric functions, and the first flat antenna is used as the positioning direction to obtain the angle values of the three electric field directions relative to the first flat antenna, the second flat antenna, and the third flat antenna; the angle difference between the measurement point and the charged body is determined by the three angle values, and the host module adjusts the direction of the electroscope according to the angle difference, determines the charged condition around the charged body according to the direction of the electroscope, and then reminds the test personnel to confirm the charged condition of the on-site equipment again.

7. The intelligent directional electroscope according to claim 6, characterized in that: The host module adjusts the direction of the electroscope according to the angle difference, including: The main control chip generates a first motor adjustment signal and a second motor adjustment signal according to the angle difference; The first motor driving module drives the first motor to execute the adjustment command according to the first motor adjustment signal; The second motor driving module drives the second motor to execute the adjustment command according to the second motor adjustment signal.

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