Electroscope and electroscope system

Abstract

The invention relates to an electroscope and an electricity testing system, and the electroscope comprises a control module which is used for transmitting electricity testing grade information under the condition that a preset electricity testing prompt condition is satisfied; the electroscope grade information is used for representing the type of the electroscope; the prompting module is connected with the control module and is used for receiving the electricity testing grade information and carrying out first prompting processing according to the electricity testing grade information; the live detection module is connected with the control module and is used for detecting the live state of the to-be-detected equipment under the condition that the live detection module is in contact with the to-be-detected equipment and outputting a live detection signal; the control module is also used for determining live detection information of the to-be-detected equipment according to the live detection signal and sending the live detection information; and the prompting module is also used for carrying out second prompting processing according to the live detection information. According to the electroscope, the situation that a user uses a high-voltage electroscope to detect low-voltage equipment or uses a low-voltage electroscope to detect high-voltage equipment can be reduced, and the use safety of the electroscope is improved.

Description

Technical Field

[0001] The present application relates to the technical field of electroscopes, and in particular to an electroscope and an electroscope system. Background Art

[0002] The tester can be used to detect whether electronic equipment is energized. The tester is divided into high-voltage tester and low-voltage tester. The high-voltage tester is used to test high-voltage electrical equipment with a voltage to ground of more than 250V, and the low-voltage tester is used to test low-voltage electrical equipment with a voltage to ground of 250V or less.

[0003] Currently, most people use electrical testers to detect whether equipment is energized. There is a possibility that due to human error, the wrong electrical tester is used, resulting in a high-voltage electrical tester testing low voltage electricity, or a low-voltage electrical tester testing high voltage electricity. Summary of the invention

[0004] Based on this, it is necessary to provide an electrical tester and an electrical test system that can improve the safety of use.

[0005] In a first aspect, the present application provides an electroscope, comprising:

[0006] A control module, used for sending electric test level information when a preset electric test prompt condition is met; the electric test level information is used for indicating the type of the electric tester;

[0007] a prompt module, connected to the control module, configured to receive the power test level information and perform a first prompt process according to the power test level information;

[0008] A charged detection module connected to the control module, used to detect the charged state of the device under test and output a charged detection signal when the charged detection module is in contact with the device under test;

[0009] The control module is further used to determine the live detection information of the device under test according to the live detection signal, and send the live detection information;

[0010] The prompt module is also used to perform a second prompt process according to the power-on detection information.

[0011] In one embodiment, it also includes:

[0012] A self-check button, a first end of which is connected to a common ground, and a second end of which is connected to the control module, for selecting to conduct a path between the common ground and the control module under a trigger operation;

[0013] The preset electrical test prompt condition includes that the path between the common ground and the control module is in a conductive state; the control module is also used to send the electrical test level information to the prompt module when the path between the common ground and the control module is in a conductive state.

[0014] In one of the embodiments, the prompt module includes at least one of a voice prompt circuit and a display prompt circuit;

[0015] The voice prompt circuit is connected to the control module, and is used to receive the power test level information, and perform a first voice prompt process according to the power test level information, and perform a second voice prompt process according to the power detection information;

[0016] The display prompt circuit is connected to the control module, and is used to receive the power test level information, perform a first display prompt process according to the power test level information, and perform a second display prompt process according to the power detection information.

[0017] In one embodiment, the display prompt circuit includes:

[0018] A display control unit connected to the control module, configured to receive the power test level information, and output a first display control signal according to the power test level information, and output a second display control signal according to the power detection information;

[0019] The display unit is connected to the display control unit and is used to output first display information according to the first display control signal and output second display information according to the second display control signal.

[0020] In one embodiment, the display unit comprises:

[0021] A ring light, the ring light being arranged around the electroscope housing;

[0022] Wherein, the electroscope housing is used to encapsulate the control module, the charged detection module and the display control unit.

[0023] In one embodiment, the voice prompt circuit includes:

[0024] A speech synthesis unit connected to the control module, configured to receive the power test level information, and output a first speech control signal according to the power test level information, and output a second speech control signal according to the power detection information;

[0025] A voice prompt unit is connected to the voice synthesis unit and is used to output first voice information according to the first voice control signal and output second voice information according to the second voice control signal.

[0026] In one embodiment, it further includes a power supply and a power detection module; wherein the power detection module is connected to the power supply and the control module respectively;

[0027] The power supply is used to provide a power supply voltage;

[0028] The control module is also used to send a sampling control signal to the power detection module;

[0029] The power detection module is used to obtain the power supply voltage according to the sampling control signal, and output a power detection signal according to the power supply voltage;

[0030] The control module is also used to obtain the power detection signal and send power warning information according to the power detection signal;

[0031] The prompt module is also used to perform a third prompt process according to the power alarm information.

[0032] In one embodiment, the power detection module includes:

[0033] A sampling driving unit, connected to the control module, configured to receive the sampling control signal and output a driving signal according to the sampling control signal;

[0034] The voltage sampling unit is connected to the control module and is used to obtain the power supply voltage under the action of the driving signal and output the power detection signal according to the power supply voltage.

[0035] In one of the embodiments, the control module is also used to determine the power status of the power supply according to the power detection signal. When the power status is sufficient, the power detection information of the device under test is determined according to the power detection signal, and the power detection information is sent to the prompt module.

[0036] In a second aspect, the present application further provides an electrical testing system, comprising a device to be tested and an electrical tester provided by any of the above embodiments.

[0037] In the above-mentioned electric tester and electric test system, the electric tester includes a control module, a prompt module and a live detection module. When the preset electric test prompt conditions are met, the control module sends the electric test level information to the prompt module, receives the electric test level information, and performs a first prompt processing according to the electric test level information to prompt the user of the type of electric tester, reduce the occurrence of using a low-voltage electric tester to test high-voltage equipment or a high-voltage electric tester to test low-voltage equipment, improve the accuracy of the electric test results, and ensure the user's safety; further, when the live detection module is in contact with the equipment to be tested, the live detection module detects the live state of the equipment to be tested and outputs a live detection signal to the control module. The control module determines the live detection information of the equipment to be tested according to the live detection signal, and sends the live detection information to the prompt module. The prompt module performs a second prompt processing according to the live detection information to prompt the user of the live state of the equipment to be tested. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0039] Figure 1 One of the structural block diagrams of an electroscope provided by an embodiment;

[0040] Figure 2 A circuit structure diagram of a 380V live detection module for a tester according to an embodiment;

[0041] Figure 3 A circuit structure diagram of a 10kV live detection module for a tester according to an embodiment;

[0042] Figure 4 The second structural block diagram of an electroscope provided by an embodiment;

[0043] Figure 5 A circuit structure diagram of a display prompt circuit provided by an embodiment;

[0044] Figure 6 A schematic diagram of the appearance of an electroscope provided by an embodiment;

[0045] Figure 7 A circuit structure diagram of a voice prompt circuit provided by an embodiment;

[0046] Figure 8 The third structural block diagram of an electroscope provided by an embodiment;

[0047] Fig. 9A circuit structure diagram of a power detection module provided by an embodiment;

[0048] Fig.10 A circuit structure diagram of a control module provided in an embodiment. DETAILED DESCRIPTION

[0049] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0051] It is understood that the terms "first", "second", etc. used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish a first element from another element. For example, without departing from the scope of this application, a first resistor may be referred to as a second resistor, and similarly, a second resistor may be referred to as a first resistor. Both the first resistor and the second resistor are resistors, but they are not the same resistor.

[0052] It can be understood that the “connection” in the following embodiments should be understood as “electrical connection”, “communication connection”, etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0053] It can be understood that “at least one” means one or more, “plurality” means two or more, and “at least a portion of an element” means a part or all of an element.

[0054] When used herein, the singular forms "a", "an" and " / the" may also include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" and the like specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof. At the same time, the term "and / or" used in this specification includes any and all combinations of the relevant listed items.

[0055] In one embodiment, Figure 1As shown, the present application provides an electrical tester, including a control module 100, a prompt module 200 and a charge detection module 300, wherein the control module 100 is connected to the prompt module 200 and the charge detection module 300 respectively.

[0056] The control module 100 can be used to send the power test level information to the prompt module 200 when the preset power test prompt condition is met. The preset power test prompt condition can be that the tester has just been powered on, or it can be a touch operation of the user or a power test prompt instruction sent by other external devices. The power test level information is used to indicate the type of the tester, that is, whether the tester is a high voltage tester or a low voltage tester. The control module 100 can be an MCU, a single chip microcomputer or an FPGA.

[0057] The prompt module 200 can be used to receive the electric test level information and perform a first prompt process according to the electric test level information to prompt the user of the type of the electric tester to prevent the user from taking the wrong electric tester.

[0058] The charged detection module 300 can be used to detect the charged state of the device under test and output a charged detection signal when the charged detection module 300 is in contact with the device under test. The charged state of the device under test includes the device being charged and the device being uncharged. The charged detection module 300 can include a high-sensitivity sensor.

[0059] The control module 100 is further configured to determine a power detection result of the device under test according to the power detection signal, and send power detection information to the prompt module 200 .

[0060] The prompt module 200 is further used to perform a second prompt process according to the power detection information to prompt the user of the power status of the device to be tested.

[0061] Figure 2 and Figure 3 It is a live detection module for two different types of electrometers. Figure 2 It is a live detection module for 380V tester. Figure 3It is a live detection module of a 10kV tester. For the convenience of description, the live detection module of the 380V tester is called the first live detection module, and the live detection module of the 10kV tester is called the second live detection module. Among them, the first live detection module includes resistor R1, resistor R2, resistor R3 and transistor Q1, wherein resistor R1 is about 50kΩ and resistor R2 is about 1.2MΩ. The second live detection module includes resistor R4, resistor R5, diode D1, transistor Q2, resistor R6 and resistor R7, wherein resistor R4 is about 100kΩ and resistor R5 is about 2.2MΩ. If a 380V tester is used to test a 10kV line, resistors R1 and R2 may burn out due to excessive current; if a 10kV tester is used to test whether a 380V line is live, the line may be mistakenly considered to be not live because the current is too small and transistor Q2 cannot be turned on. Therefore, before using a tester to perform live detection on the device to be tested, it is necessary to first perform a first prompt process through the prompt module 200 according to the test level information to prompt the user the type of the tester to prevent the user from taking the wrong tester.

[0062] In an embodiment of the present application, the electric tester includes a control module 100, a prompt module 200 and a charged detection module 300. When the preset electric test prompt conditions are met, the control module 100 sends the electric test level information to the prompt module 200, receives the electric test level information, and performs a first prompt processing according to the electric test level information to prompt the user of the type of electric tester, reduce the occurrence of using a low-voltage electric tester to test high-voltage equipment or a high-voltage electric tester to test low-voltage equipment, improve the accuracy of the electric test result, and ensure the user's safety; further, when the charged detection module 300 is in contact with the device to be tested, the charged state of the device to be tested is detected, and a charged detection signal is output to the control module 100. The control module 100 determines the charged detection information of the device to be tested according to the charged detection signal, and sends the charged detection information to the prompt module 200. The prompt module 200 performs a second prompt processing according to the charged detection information to prompt the user of the charged state of the device to be tested.

[0063] In one embodiment, Figure 4 As shown, the tester further includes a self-test button 400. A first end of the self-test button 400 is connected to the common ground, and a second end of the self-test button 400 is connected to the control module 100, for selecting to conduct the path between the common ground and the control module 100 under a trigger operation.

[0064] The preset power test prompt condition includes that the path between the common ground and the control module 100 is in a conductive state. The control module 100 is also used to send power test level information to the prompt module 200 when the path between the common ground and the control module 100 is in a conductive state.

[0065] It can be understood that before the user uses the tester to perform live detection on the device to be tested, the user can first press the self-test button 400 to conduct the path between the common ground and the control module 100. When the path between the common ground and the control module 100 is in a conducting state, the control module 100 can send the test level information to the prompt module 200 to instruct the prompt module 200 to perform the first prompt processing according to the test level information, so as to prompt the user of the type of the tester, reduce the occurrence of using a low-voltage tester to test a high-voltage device or a high-voltage tester to test a low-voltage device, improve the accuracy of the test result, and ensure the user's safety.

[0066] In one embodiment, the prompt module includes a voice prompt circuit.

[0067] The voice prompt circuit is connected to the control module, and is used to receive the electrical test level information, and perform a first voice prompt processing according to the electrical test level information, and perform a second voice prompt processing according to the live detection information. The voice information content of the first voice prompt processing and the second voice prompt processing is different. Before using the tester to perform live detection on the device under test, the voice prompt circuit can perform a first voice prompt processing based on the electrical test level information to prompt the user the type of the tester. When using the tester to perform live detection on the device under test, that is, when the live detection module is in contact with the device under test, the voice prompt circuit can perform a second voice prompt processing according to the live detection information to prompt the user whether the device under test is live.

[0068] In one embodiment, the prompt module includes a display prompt circuit.

[0069] The display prompt circuit is connected to the control module, and is used to receive the electrical test level information, and perform a first display prompt process according to the electrical test level information, and perform a second display prompt process according to the live detection information. The display contents of the first display prompt process and the second display prompt process are different. Before using the tester to perform live detection on the device under test, the display prompt circuit can perform a first display prompt process based on the electrical test level information to prompt the user of the type of the tester. When using the tester to perform live detection on the device under test, that is, when the live detection module is in contact with the device under test, the display prompt circuit can perform a second display prompt process based on the live detection information to prompt the user whether the device under test is live.

[0070] In one embodiment, the prompt module includes a voice prompt circuit and a display prompt circuit.

[0071] The voice prompt circuit is connected to the control module, and is used for receiving the power test level information, performing a first voice prompt process according to the power test level information, and performing a second voice prompt process according to the power detection information.

[0072] The display prompt circuit is connected to the control module, and is used for receiving the power test level information, and performing a first display prompt process according to the power test level information, and performing a second display prompt process according to the power detection information.

[0073] It can be understood that before using the tester to perform live detection on the device under test, the voice prompt circuit can perform a first voice prompt based on the test level information, and at the same time, the display prompt circuit can perform a first display prompt based on the test level information, and through the dual prompts of the voice prompt circuit and the display prompt circuit, it is ensured that the user clearly knows the type of tester used. When using the tester to perform live detection on the device under test, that is, when the live detection module is in contact with the device under test, the voice prompt circuit can perform a second voice prompt based on the live detection information, and at the same time, the display prompt circuit can perform a second display prompt based on the live detection information, and through the dual prompts of the voice prompt circuit and the display prompt circuit, it is ensured that the user clearly knows whether the device under test is live.

[0074] In one embodiment, Figure 5 As shown, the display prompt circuit includes a display control unit 211 and a display unit 212. The display control unit 211 is connected to the control module 100 and the display unit 212 respectively.

[0075] The display control unit 211 may be configured to receive power test level information, and output a first display control signal according to the power test level information, and output a second display control signal according to the power detection information.

[0076] The display unit 212 may be configured to output first display information according to a first display control signal, and output second display information according to a second display control signal.

[0077] Furthermore, if Figure 5 As shown, the display control unit 211 includes a resistor R8, a resistor R9 and a transistor Q3. The frequency of the first current signal input to the resistor R8 by the control module 100 can reflect the test level information and the live detection information. The frequency of the first current signal is different, and the frequency of the display control signal output by the display control unit is different. That is, when the frequency of the first current signal is the first frequency, the first current signal can be used to characterize the test level information, and when the frequency of the first current signal is the second frequency, the first current signal can be used to characterize the live detection information.

[0078] The display unit 212 includes a plurality of LED lamps and a resistor R10. The plurality of LED lamps constitute a Figure 6The ring light 2121 shown is arranged around the electroscope housing. The electroscope housing is used to encapsulate the control module 100, the charged detection module 300 and the display control unit 211. The display control signal received by the display unit 212 has different frequencies, and the output display information is different, that is, the luminous color or flashing frequency of the ring light 2121 is different. The luminous color or flashing frequency of the ring light 2121 can prompt the user the type of electroscope and whether the device to be tested is charged. In addition, by setting the ring light 2121, operators and supervisors in each direction can clearly know the type of electroscope and whether the device to be tested is charged, avoiding the occurrence of misjudgment due to the problem of observation angle not being able to see the light prompt clearly.

[0079] In one embodiment, Figure 7 As shown, the voice prompt circuit includes a voice synthesis unit 221 and a voice prompt unit 222. The voice synthesis unit 221 is connected to the control module 100 and the voice prompt unit 222 respectively.

[0080] The voice synthesis unit 221 may be configured to receive the power test level information, and output a first voice control signal according to the power test level information, and output a second voice control signal according to the power detection information.

[0081] The voice prompt unit 222 may be configured to output first voice information according to a first voice control signal, and output second voice information according to a second voice control signal.

[0082] Specifically, the speech synthesis unit 221 may include a speech control chip U1, and the speech prompt unit 222 may include a speaker SPK. The three I / O input pins of the speech control chip U1 are connected to the control module 100. The level coding of the three I / O input pins of the speech control chip can be used to characterize different electrical test level information and different live detection information. The first speech control signal and the second speech control signal are PWM (Pulse Width Modulation) signals, and the duty cycle of the first speech control signal and the second speech control signal varies differently. The speech control chip can output the first speech control signal or the second speech control signal to the speaker according to the level coding of the three I / O input pins. The speaker SPK can output the first speech information according to the first speech control signal, and output the second speech information according to the second speech control signal. Exemplarily, the first speech information may be "the tester type is a high voltage tester" or "the tester type is a low voltage tester", and the second speech information may be "the device is live" or "the device is not live", etc.

[0083] In one embodiment, Figure 8As shown, the tester further includes a power supply 600 and a power detection module 500. The power detection module 500 is connected to the power supply 600 and the control module 100 respectively.

[0084] The power supply 600 is used to provide a power supply voltage. The power supply can be a removable battery.

[0085] The control module 100 is also used to send a sampling control signal to the power detection module 500 .

[0086] The power detection module 500 is used to obtain the power supply voltage according to the sampling control signal, and output a power detection signal according to the power supply voltage.

[0087] The control module 100 is also used to obtain a power detection signal and send a power alarm message according to the power detection signal.

[0088] The prompt module 200 is further used to perform a third prompt process according to the power alarm information.

[0089] It can be understood that the power detection module 500 can continuously monitor the power supply voltage under the action of the sampling control signal, and output the power detection signal according to the power supply voltage. The control module 100 can send a power alarm message to the prompt module 200 when the voltage or current of the power detection signal is lower than the preset threshold. The prompt module 200 can perform a third prompt processing through at least one of a voice prompt circuit or a display prompt circuit according to the power alarm information to prompt the user to charge the tester or replace the power supply. The preset threshold can be set based on an empirical rule.

[0090] In one embodiment, Fig. 9 As shown, the power detection module 500 includes a sampling drive unit 510 and a voltage sampling unit 520. The sampling drive unit 510 is connected to the control module 100 and the voltage sampling unit 520 respectively. The sampling drive unit 510 can be used to receive a sampling control signal and output a driving signal according to the sampling control signal. The voltage sampling unit 520 can be used to obtain a power supply voltage under the action of the driving signal and output a power detection signal according to the power supply voltage.

[0091] Furthermore, if Fig. 9 As shown, the sampling driving unit 510 may include a resistor R11, a resistor R12 and a transistor Q4. The voltage sampling unit 520 may include a resistor R13, a resistor R14, a transistor Q5, a resistor R15 and a resistor R16.

[0092] After the sampling drive unit 510 receives the sampling control signal sent by the control module 100, the transistor Q4 is turned on, so that the transistor Q5 is turned on, and the power supply voltage is input to the control module 100 after being divided by the resistors R16 and R15. Among them, the relationship between the power detection signal Vadc and the power supply voltage Vbat is Vadc=(R16 / R16+R15)*Vbat. The control module 100 can calculate the power supply voltage according to the numerical relationship between the power detection signal and the power supply voltage.

[0093] In one embodiment, the control module 100 is also used to determine the power status of the power supply according to the power detection signal. When the power status is sufficient, the power detection information of the device to be tested is determined according to the power detection signal, and the power detection information is sent to the prompt module 200. Specifically, the control module 100 can determine that the power status of the power supply is sufficient when the voltage of the power detection signal is greater than a preset threshold; and determine that the power status of the power supply is insufficient when the voltage of the power detection signal is less than or equal to the preset threshold. Further, when the power status is sufficient, the control module 100 determines the power detection information of the device to be tested according to the power detection signal, and sends the power detection information to the prompt module 200. This can avoid the situation where the user mistakenly believes that the device to be tested is not powered due to insufficient power and the tester does not prompt.

[0094] In one embodiment, Fig.10 As shown, the control module 100 may include a processing chip I2, wherein the pin HVIN is connected to the power detection module 300 for obtaining a power detection signal. The pin ADC_ON / OFF and the pin ADC_IN are connected to the power detection module 400, the pin ADC_ON / OFF is used to send a sampling control signal to the power detection module 400, and the pin ADC_IN is used to obtain a power detection signal. The pins PC0, PC1, and PC2 are connected to the voice prompt circuit for sending power test level information, power detection information, or power alarm information to the voice prompt circuit. The pin LED is connected to the display prompt circuit for sending power test level information, power detection information, or power alarm information to the display prompt circuit.

[0095] In one embodiment, the present application further provides an electrical testing system, which may include a device to be tested and an electrical tester provided by any of the above embodiments.

[0096] In the description of this specification, the description with reference to the terms "some embodiments", "other embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic description of the above terms does not necessarily refer to the same embodiment or example.

[0097] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0098] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. An electroscope, characterized in that: include: The control module is used to send the power test level information when the preset power test prompt conditions are met; The electric test level information is used to indicate the type of the electric tester; a prompt module, connected to the control module, configured to receive the power test level information and perform a first prompt process according to the power test level information; A charged detection module connected to the control module, used to detect the charged state of the device under test and output a charged detection signal when the charged detection module is in contact with the device under test; The control module is further used to determine the live detection information of the device under test according to the live detection signal, and send the live detection information; The prompt module is also used to perform a second prompt process according to the power-on detection information.

2. The electroscope according to claim 1, characterized in that Also includes: A self-check button, a first end of which is connected to a common ground, and a second end of which is connected to the control module, for selecting to conduct a path between the common ground and the control module under a trigger operation; The preset electrical test prompt condition includes that the path between the common ground and the control module is in a conductive state; the control module is also used to send the electrical test level information to the prompt module when the path between the common ground and the control module is in a conductive state.

3. The electroscope according to claim 1 or 2, characterized in that: The prompt module includes at least one of a voice prompt circuit and a display prompt circuit; The voice prompt circuit is connected to the control module, and is used to receive the power test level information, and perform a first voice prompt process according to the power test level information, and perform a second voice prompt process according to the power detection information; The display prompt circuit is connected to the control module, and is used to receive the power test level information, perform a first display prompt process according to the power test level information, and perform a second display prompt process according to the power detection information.

4. The electroscope according to claim 3, characterized in that The display prompt circuit comprises: A display control unit connected to the control module, configured to receive the power test level information, and output a first display control signal according to the power test level information, and output a second display control signal according to the power detection information; The display unit is connected to the display control unit and is used to output first display information according to the first display control signal and output second display information according to the second display control signal.

5. The electroscope according to claim 4, characterized in that: The display unit comprises: A ring light, the ring light being arranged around the electroscope housing; Wherein, the electroscope housing is used to encapsulate the control module, the charged detection module and the display control unit.

6. The electroscope according to claim 3, characterized in that The voice prompt circuit comprises: A speech synthesis unit connected to the control module, configured to receive the power test level information, and output a first speech control signal according to the power test level information, and output a second speech control signal according to the power detection information; A voice prompt unit is connected to the voice synthesis unit and is used to output first voice information according to the first voice control signal and output second voice information according to the second voice control signal.

7. The electroscope according to claim 1, characterized in that It also includes a power supply and a power detection module; wherein the power detection module is connected to the power supply and the control module respectively; The power supply is used to provide a power supply voltage; The control module is also used to send a sampling control signal to the power detection module; The power detection module is used to obtain the power supply voltage according to the sampling control signal, and output a power detection signal according to the power supply voltage; The control module is also used to obtain the power detection signal and send power warning information according to the power detection signal; The prompt module is also used to perform a third prompt process according to the power alarm information.

8. The electroscope according to claim 7, characterized in that The power detection module includes: A sampling driving unit, connected to the control module, configured to receive the sampling control signal and output a driving signal according to the sampling control signal; The voltage sampling unit is connected to the control module and is used to obtain the power supply voltage under the action of the driving signal and output the power detection signal according to the power supply voltage.

9. The electroscope according to claim 7 or 8, characterized in that: The control module is also used to determine the power status of the power supply according to the power detection signal. When the power status is sufficient, the power detection information of the device under test is determined according to the power detection signal, and the power detection information is sent to the prompt module.

10. An electrical testing system, characterized in that: The invention comprises a device to be tested and the electroscope as claimed in any one of claims 1 to 9.

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