CN211206755U - Zero live wire identification system with detect function - Google Patents
Zero live wire identification system with detect function Download PDFInfo
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- CN211206755U CN211206755U CN201921528433.9U CN201921528433U CN211206755U CN 211206755 U CN211206755 U CN 211206755U CN 201921528433 U CN201921528433 U CN 201921528433U CN 211206755 U CN211206755 U CN 211206755U
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Abstract
The utility model discloses a zero live wire identification system with detect function, include: the signal conversion unit, the zero-live line detection and identification device and the signal prompt module are sequentially connected; the signal conversion unit comprises a first analog-to-digital converter and a second analog-to-digital converter, wherein the first analog-to-digital converter and the second analog-to-digital converter are respectively connected to a first signal input end and a second signal input end of the zero-live wire detection and identification device; the input ends of the first analog-to-digital converter and the second analog-to-digital converter are respectively connected with a first antenna which can extend into the jack of the socket and is used for detecting a live wire and a second antenna which can extend into the jack of the socket and is used for detecting a zero wire. The utility model has reasonable and ingenious design, saves time and labor, can determine whether the live wire is open-circuited, whether the zero line is open-circuited and whether the line wiring is abnormal by one-time measurement, and improves the detection efficiency; even non-professional personnel can also relax the differentiation socket whether can normally use, improved the application scope of this product, easily popularize.
Description
Technical Field
The utility model relates to a zero live wire detection area, concretely relates to zero live wire identification system with detect function.
Background
With the development of the electronic industry, the types of sockets tend to be diversified, wherein the zero-live wire connection of the two-hole socket is easy to be confused, and because the normal switch controls the live wire, if the connection is wrong, the switch is turned off and only the zero wire is cut off, and the live wire is still electrified, the electric shock accident is easy to cause; meanwhile, some electric appliances have requirements on the access of the zero line and the live line and cannot be reversely connected, if the connection is reversely connected, certain functions cannot be achieved, and even the electric appliances are damaged; therefore, the detection of the national standard two-hole socket is often needed before the socket is installed and important electric devices are used and during maintenance operation.
At present, a detection device for a national standard two-hole socket is provided with a common test pencil, the state of zero and live line induction signals of the two holes of the socket is respectively tested by inserting the test pencil into jacks of the socket in turn, and the zero and live lines of the socket are distinguished by artificially comparing indication state effects; the detection efficiency is low, and secondly, a detection device configured for maintenance personnel must have a self-detection function, otherwise, because the self fault of the device is inserted into a live wire hole and no response is given, the operation personnel mistakenly think that the hole is connected with a zero wire, and serious potential safety hazard is caused;
in addition, the conventional detection device cannot provide open circuit abnormity detection, the conclusion can be reached only after the detection is carried out for many times by depending on the experience of maintenance personnel, and the maintenance personnel often neglect the problems of open circuit abnormity and the like when detecting through the conventional detection device, so that the condition of secondary maintenance is caused, and time and labor are wasted.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model discloses a zero live wire identification system with detect function.
The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is:
a null line and live line recognition system with detection function, comprising: the signal conversion unit, the zero-live line detection and identification device and the signal prompt module are sequentially connected; the signal conversion unit comprises a first analog-to-digital converter and a second analog-to-digital converter, wherein the first analog-to-digital converter and the second analog-to-digital converter are respectively connected to a first signal input end and a second signal input end of the zero-live wire detection and identification device; the input ends of the first analog-to-digital converter and the second analog-to-digital converter are respectively connected with a first antenna which can extend into the jack of the socket and is used for detecting a live wire and a second antenna which can extend into the jack of the socket and is used for detecting a zero wire.
The signal prompting module comprises a first indicator light and a second indicator light; the first indicator light and the second indicator light are respectively connected to a first output end and a second output end of the zero-live wire detection and identification device.
The signal prompt module also comprises a buzzer; and the buzzer is connected with the third output end of the zero-live wire detection and identification device through an NPN type triode.
The emitter of the NPN type triode is grounded, and the collector and the base of the NPN type triode are respectively connected with the third output ends of the buzzer and the zero-live line detection and identification device.
The input ends of the first analog-to-digital converter and the second analog-to-digital converter are connected with a first divider resistor and a second divider resistor which have the same resistance values; and a capacitor is connected in parallel to the second voltage-dividing resistor.
The signal prompt module further comprises a third indicator light and a fourth indicator light which are respectively connected with a fourth output end and a fifth output end of the zero-live wire detection and identification device.
The first indicator light and the second indicator light are red light emitting diodes, and the third indicator light and the fourth indicator light are green light emitting diodes.
The resistance of the first divider resistor is 10 megaohms, and the capacitance of the capacitor is 470 picofarads.
And protective resistors are connected in series between the first indicator light, the second indicator light, the third indicator light, the fourth indicator light and the zero and live wire detection and identification device.
And the first antenna and the second antenna are sleeved with insulating protective sleeves.
The utility model has the advantages that: the utility model has reasonable and ingenious design, and can determine whether the live wire is open-circuited, the zero line is open-circuited and the line wiring is abnormal by one-time measurement; the detection efficiency is improved, and secondary detection is avoided; through the arrangement of the first antenna and the second antenna, the left side jack and the right side jack of the socket can be measured simultaneously, misleading to a user due to no feedback is avoided, the potential safety hazard problem of a conventional test pencil is solved, self-checking is not needed, time is saved, and meanwhile cost is reduced; in addition, even non-professional personnel can easily distinguish whether the socket can be normally used, the application range of the product is improved, and the socket is easy to popularize.
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
Drawings
Fig. 1 is a circuit diagram of the present invention;
fig. 2 is a flowchart of the embodiment of the present invention for detecting a national standard socket.
Detailed Description
In an embodiment, referring to fig. 1 to fig. 2, the zero-fire line identification system with a detection function provided in this embodiment includes: the signal conversion unit, the zero-live line detection and identification device and the signal prompt module are sequentially connected; the signal conversion unit comprises a first analog-to-digital converter and a second analog-to-digital converter, wherein the first analog-to-digital converter and the second analog-to-digital converter are respectively connected to a first signal input end and a second signal input end of the zero-live wire detection and identification device; the input ends of the first analog-to-digital converter and the second analog-to-digital converter are respectively connected with a first antenna which can extend into the jack of the socket and is used for detecting a live wire and a second antenna which can extend into the jack of the socket and is used for detecting a zero wire.
Specifically, through the arrangement of the first antenna and the second antenna, the left side jack and the right side jack of the socket can be measured simultaneously, through the arrangement of the first analog-to-digital converter (ADC _ L) and the second analog-to-digital converter (ADC _ N), a live wire end measuring signal and a zero wire end measuring signal which are obtained through measurement of the first antenna and the second antenna can be simultaneously converted into digital signals and transmitted to the zero live wire detection and identification device 2, the process is not interfered with each other, the accuracy of the measuring result is guaranteed, and the first antenna and the second antenna are sleeved with insulating protective sleeves which prevent the first antenna and the second antenna from being in direct contact with a power supply.
In addition, compared with the conventional test pencil and the conventional detection method, firstly, the results of whether the live wire is open-circuited, whether the zero wire is open-circuited and whether the line connection is abnormal can be obtained only by one-time measurement, and the results are fed back by the signal prompt module, so that the efficiency is high, and even if a professional maintenance worker can know the abnormal condition of the target to be tested from the feedback of the signal prompt module; secondly, by means of simultaneous measurement of the first antenna and the second antenna, even if a user carelessly takes measures, the system can not normally operate and can not feed back to the user through the signal prompting module when the system is not powered on or a power supply of the system fails; the misleading such as open circuit of the socket can not be brought to the user because of not having the feedback, the potential safety hazard has been reduced to a very big degree, consequently for conventional test pencil, this zero live wire identification system with detect function need not to dispose self-checking function and also can guarantee not misleading maintenance personal, and has solved the potential safety hazard problem of conventional test pencil.
The signal prompting module comprises a first indicator light and a second indicator light; the first indicator light and the second indicator light are respectively connected to a first output end and a second output end of the zero-live wire detection and identification device.
The signal prompt module also comprises a buzzer; and the buzzer is connected with the third output end of the zero-live wire detection and identification device through an NPN type triode.
The emitter of the NPN type triode is grounded, and the collector and the base of the NPN type triode are respectively connected with the third output ends of the buzzer and the zero-live line detection and identification device.
Specifically, the NPN type triode has a switching function, and the zero-live wire detection and identification device 2 controls the NPN type triode to be connected with the buzzer, so that the buzzer alarms to play a role in warning a user;
when the zero-live wire detection and identification device 2 judges that the live wire, the zero wire and the line of the target to be detected are open-circuited, the buzzer is connected through the NPN type triode, and the buzzer alarms.
The input ends of the first analog-to-digital converter and the second analog-to-digital converter are connected with a first divider resistor and a second divider resistor which have the same resistance values; and a capacitor is connected in parallel to the second voltage-dividing resistor.
Specifically, the voltage dividing resistor is connected with a capacitor in parallel to form a filter circuit, so that high-frequency interference is reduced, and the detection result is more accurate.
The signal prompt module further comprises a third indicator light and a fourth indicator light which are respectively connected with a fourth output end and a fifth output end of the zero-live wire detection and identification device.
The first indicator light and the second indicator light are red light emitting diodes, and the third indicator light and the fourth indicator light are green light emitting diodes.
The resistance of the first divider resistor is 10 megaohms, and the capacitance of the capacitor is 470 picofarads.
And protective resistors are connected in series between the first indicator light, the second indicator light, the third indicator light, the fourth indicator light and the zero and live wire detection and identification device.
And the first antenna and the second antenna are sleeved with insulating protective sleeves.
In a preferred embodiment, the signal prompt module further comprises a display screen, and the display screen is connected with the zero-fire line detection and identification device 2 and is used for displaying the operation result of the zero-fire line detection and identification device 2; the result of this run.
The flow of the zero-live wire identification system with the detection function for detecting the national standard socket is as follows: the system is powered on when being started, the first antenna and the second antenna are respectively inserted into a right side jack and a left side jack of the socket according to the national standard, and a live wire end measuring signal and a zero wire end measuring signal are obtained;
the method comprises the steps of converting a live wire end measuring signal and a zero line end measuring signal into digital signals through a first analog-to-digital converter (ADC _ L) and a second analog-to-digital converter (ADC _ N), transmitting the digital signals into a zero-live wire detection and identification device 2, obtaining the live wire end measuring signal and the zero line end measuring signal which are converted through the analog-to-digital converters, judging whether the live wire end measuring signal and the zero line end measuring signal are larger than a preset reference threshold, determining that a live wire is open-circuited when the live wire end measuring signal and the zero line end measuring signal are smaller than the reference threshold, controlling a buzzer to give an alarm, determining that a third indicator lamp and a fourth indicator lamp are not on when the live wire end measuring signal and the zero line end measuring signal are smaller than the reference threshold, determining that the zero line is open, controlling the first indicator lamp and the second indicator lamp to light, driving the third indicator lamp and the fourth indicator lamp to light when the live wire end measuring signal and the zero line end measuring signal are smaller than the reference threshold, determining that the live wire end measuring signal is smaller than the red light, the green light, the red light.
When a user detects the national standard socket through the zero-live wire recognition system with the detection function, whether the socket is abnormal or not can be known according to whether the buzzer alarms or not; and distinguishing abnormal types according to the lighting conditions of the first indicator light, the second indicator light, the third indicator light and the fourth indicator light. Even non-professional personnel can easily distinguish whether the socket can be normally used, so that the application range of the product is improved, and the socket is easy to popularize; in a preferred embodiment, the anomaly category can also be distinguished by text displayed on the screen.
The utility model has reasonable and ingenious design, and can determine whether the live wire is open-circuited, the zero line is open-circuited and the line wiring is abnormal by one-time measurement; the detection efficiency is improved, and secondary detection is avoided; through the arrangement of the first antenna and the second antenna, the left side jack and the right side jack of the socket can be measured simultaneously, misleading to a user due to no feedback is avoided, the potential safety hazard problem of a conventional test pencil is solved, self-checking is not needed, time is saved, and meanwhile cost is reduced; in addition, even non-professional personnel can easily distinguish whether the socket can be normally used, the application range of the product is improved, and the socket is easy to popularize.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. The technical solution of the present invention can be used by anyone skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, using the technical means and contents disclosed above, without departing from the scope of the technical solution of the present invention. Therefore, the equivalent changes made according to the shape, structure and principle of the present invention should be covered in the protection scope of the present invention.
Claims (10)
1. A null line and live line identification system with a detection function is characterized by comprising: the signal conversion unit, the zero-live line detection and identification device and the signal prompt module are sequentially connected;
the signal conversion unit comprises a first analog-to-digital converter and a second analog-to-digital converter, wherein the first analog-to-digital converter and the second analog-to-digital converter are respectively connected to a first signal input end and a second signal input end of the zero-live wire detection and identification device;
the input ends of the first analog-to-digital converter and the second analog-to-digital converter are respectively connected with a first antenna which can extend into the jack of the socket and is used for detecting a live wire and a second antenna which can extend into the jack of the socket and is used for detecting a zero wire.
2. The system for identifying a null line and a live line with a detection function according to claim 1, wherein the signal prompt module comprises a first indicator light and a second indicator light;
the first indicator light and the second indicator light are respectively connected to a first output end and a second output end of the zero-live wire detection and identification device.
3. The system for identifying a null line and a live line with a detection function according to claim 2, wherein the signal prompt module further comprises a buzzer;
and the buzzer is connected with the third output end of the zero-live wire detection and identification device through an NPN type triode.
4. The system according to claim 3, wherein the emitter of the NPN transistor is grounded, and the collector and the base of the NPN transistor are respectively connected to the third output terminals of the buzzer and the zero-live line detection and identification device.
5. The system for identifying the null line and the live line with the detection function as claimed in claim 1, wherein the input ends of the first analog-to-digital converter and the second analog-to-digital converter are respectively connected with a first voltage dividing resistor and a second voltage dividing resistor which have the same resistance;
and a capacitor is connected in parallel to the second voltage-dividing resistor.
6. The null and live wire recognition system with the detection function as claimed in claim 2, wherein the signal prompt module further comprises a third indicator light and a fourth indicator light respectively connected to a fourth output end and a fifth output end of the null and live wire detection recognition device.
7. The fire and zero line recognition system with detection function of claim 6, wherein the first indicator light and the second indicator light are red light emitting diodes, and the third indicator light and the fourth indicator light are green light emitting diodes.
8. The system for identifying hot and zero lines with detection function as claimed in claim 5, wherein the resistance of the first voltage dividing resistor is 10 mega ohms, and the capacitance of the capacitor is 470 pico farads.
9. The system for identifying a null line and a live line with a detection function according to claim 6, wherein a protection resistor is connected in series between the first indicator light, the second indicator light, the third indicator light, the fourth indicator light and the null line and live line detection and identification device.
10. The null-line and live-line identification system with the detection function according to claim 1, wherein the first antenna and the second antenna are sleeved with insulating protective sleeves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921528433.9U CN211206755U (en) | 2019-09-16 | 2019-09-16 | Zero live wire identification system with detect function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921528433.9U CN211206755U (en) | 2019-09-16 | 2019-09-16 | Zero live wire identification system with detect function |
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| CN211206755U true CN211206755U (en) | 2020-08-07 |
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| CN201921528433.9U Active CN211206755U (en) | 2019-09-16 | 2019-09-16 | Zero live wire identification system with detect function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110609199A (en) * | 2019-09-16 | 2019-12-24 | 优利德科技(中国)股份有限公司 | Zero-line and live-line detection and identification method, device and system |
| CN114019417A (en) * | 2021-11-09 | 2022-02-08 | 国家电网有限公司西北分部 | Line protection current loop neutral line open circuit detection method |
-
2019
- 2019-09-16 CN CN201921528433.9U patent/CN211206755U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110609199A (en) * | 2019-09-16 | 2019-12-24 | 优利德科技(中国)股份有限公司 | Zero-line and live-line detection and identification method, device and system |
| CN114019417A (en) * | 2021-11-09 | 2022-02-08 | 国家电网有限公司西北分部 | Line protection current loop neutral line open circuit detection method |
| CN114019417B (en) * | 2021-11-09 | 2022-05-31 | 国家电网有限公司西北分部 | Line protection current loop neutral line open circuit detection method |
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