CN215067201U - Measuring device based on tunnel LED lamps and lanterns short-circuit fault point - Google Patents
Measuring device based on tunnel LED lamps and lanterns short-circuit fault point Download PDFInfo
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- CN215067201U CN215067201U CN202120597014.1U CN202120597014U CN215067201U CN 215067201 U CN215067201 U CN 215067201U CN 202120597014 U CN202120597014 U CN 202120597014U CN 215067201 U CN215067201 U CN 215067201U
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Abstract
The utility model relates to a measuring device based on tunnel LED lamps and lanterns short-circuit fault point, its characterized in that: the intelligent lamp is mainly composed of a main control machine, a power module, a display module, a relay, a current source, a data acquisition module and a short-circuit fault point measurement circuit, wherein the main control machine is powered by the power module connected with the main control machine, the main control machine is connected with the short-circuit fault point measurement circuit module through the relay, the current source and the data acquisition module respectively, the short-circuit fault point measurement circuit module is connected with a lamp, and the display module is connected to the main control machine. The utility model has the advantages of scientific and reasonable design, have simple structure, safe and reliable, reduce construction cost, easily realize, be a measuring device based on tunnel LED lamps and lanterns short circuit fault point who has higher novelty.
Description
Technical Field
The utility model belongs to subway construction field relates to a measuring device, especially a measuring device based on tunnel LED lamps and lanterns short-circuit fault point.
Background
From transportation to installation, tunnel LED lamps often cause line faults due to transportation, human beings, construction environment and the like. The traditional fault diagnosis often adopts a universal meter and a megohmmeter to carry out line detection, so that time and labor are wasted, the position of a fault point cannot be accurately judged, great interference is caused to subsequent equipment debugging, and the overall construction progress is influenced.
Disclosure of Invention
An object of the utility model is to overcome prior art not enough, provide a convenient measuring device based on tunnel LED lamps and lanterns short-circuit fault point who measures, labour saving and time saving, do not influence the construction progress, easily realize.
The utility model provides a its technical problem take following technical scheme to realize:
the utility model provides a measuring device based on tunnel LED lamps and lanterns short-circuit fault point which characterized in that: the intelligent lamp is mainly composed of a main control machine, a power module, a display module, a relay, a current source, a data acquisition module and a short-circuit fault point measurement circuit, wherein the main control machine is powered by the power module connected with the main control machine, the main control machine is connected with the short-circuit fault point measurement circuit module through the relay, the current source and the data acquisition module respectively, the short-circuit fault point measurement circuit module is connected with a lamp, and the display module is connected to the main control machine.
Moreover, the main control computer adopts the model STM32F103ZET 6.
Moreover, the model of the data acquisition module is ADS 1256.
And the display module consists of a short-circuit alarm lamp, a current source starting button and a data display screen, wherein the short-circuit alarm lamp is used for prompting short-circuit information, the current source starting button is used for starting a current source, and the data display screen displays the position and the unit of a short-circuit fault point.
The utility model has the advantages that:
1. the measuring device based on the short-circuit fault point of the tunnel LED lamp can realize that the lamp is detected to have no damage at one time before equipment is installed, whether the lamp is short-circuited or not can be automatically and accurately judged without human intervention, and the anti-interference performance is good; compared with the traditional scheme of manual detection, the improved scheme greatly improves the detection efficiency, greatly reduces the labor intensity of detection personnel after equipment installation and facilitates construction.
2. The utility model has the advantages of scientific and reasonable design, have simple structure, safe and reliable, reduce construction cost, easily realize, be a measuring device based on tunnel LED lamps and lanterns short circuit fault point who has higher novelty.
Drawings
Fig. 1 is a schematic block diagram of the present invention.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings:
a measuring device based on a tunnel LED lamp short-circuit fault point is innovative in that: the power supply module inputs a 5V power supply to the main control computer connected with the power supply module, the power supply module is connected with the short-circuit fault point measuring circuit module through the relay, the current source and the data acquisition module on the main control computer respectively, the short-circuit fault point measuring circuit module is connected with a lamp, and the display module is connected to the main control computer.
The main control computer adopts a model STM32F103ZET 6; the model of the data acquisition module is ADS1256 and is used for acquiring voltages at two ends of the wire; the display module comprises short-circuit alarm lamp, current source start button, data display screen, and the short-circuit alarm lamp is used for indicateing short-circuit information, and current source start button is used for starting the current source, and data display screen shows the position and the unit of short-circuit fault point.
The main control computer automatically identifies the load as a short circuit according to the received data, and the short circuit alarm lamp gives an alarm and enters a short circuit fault point measuring mode.
When the system enters a short-circuit fault point measuring mode, the main control computer controls the connection between a test terminal A, B connected to the lamp and the short-circuit fault point measuring circuit module through a relay, so that the port is connected to a required circuit.
When a load short-circuit state is detected, the current source is started, constant direct current is provided for the lead connected to the test terminal A, B, the voltage values at the two ends of the lead are collected through the 24-bit ADC to calculate the resistance value of the lead, data are transmitted to the main control computer to be processed, the length of the lead is calculated, and the error is within 5%, so that the position of a short-circuit point is obtained.
The current source method is based on ohm's law, because both the port lead and the lead for short circuit are copper wires made of the same material, if constant current is introduced into both ends of the port, LVDS signals can be formed at both ends of the port, a 24-bit precision differential AD converter is selected to collect voltages at both ends of the terminal, the equivalent resistance of the port in the direction of looking to the right can be obtained through the current-voltage relation, the known lead is a copper lead, the radius of the lead is known, the length of the conductor can be obtained through the conductivity of copper, the cross section area of the copper lead and the resistance value of the equivalent resistance at the right side of the port, and the length is the distance of twice the short circuit point plus the distance between the upper terminal and the lower terminal of the port.
The display module comprises short circuit alarm lamp, current source start button, data display screen, and short circuit alarm lamp reports to the police when the system detects for the short circuit, gets into short circuit fault point measurement mode. And starting a current source button after entering the mode, wherein the current source provides constant current, and finally, the position and the unit of the short-circuit fault point are displayed on a data display screen through calculation processing of a main control computer.
The utility model has the advantages of simple structure, simple operation, high measurement accuracy, high efficiency and the like. Whether lamps and lanterns damaged can effectual inspection out before tunnel LED lamps and lanterns installation, can save a large amount of manpowers, material resources, shorten the engineering time, very big improvement the efficiency of construction.
Although the embodiments of the present invention and the accompanying drawings are disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims, and therefore, the scope of the present invention is not limited to the disclosure of the embodiments and the accompanying drawings.
Claims (4)
1. The utility model provides a measuring device based on tunnel LED lamps and lanterns short-circuit fault point which characterized in that: the intelligent lamp is mainly composed of a main control machine, a power module, a display module, a relay, a current source, a data acquisition module and a short-circuit fault point measurement circuit, wherein the main control machine is powered by the power module connected with the main control machine, the main control machine is connected with the short-circuit fault point measurement circuit module through the relay, the current source and the data acquisition module respectively, the short-circuit fault point measurement circuit module is connected with a lamp, and the display module is connected to the main control machine.
2. The measuring device based on the short-circuit fault point of the tunnel LED lamp as claimed in claim 1, wherein: the model that the main control computer adopted is STM32F103ZET 6.
3. The measuring device based on the short-circuit fault point of the tunnel LED lamp as claimed in claim 1, wherein: the model of the data acquisition module is ADS 1256.
4. The measuring device based on the short-circuit fault point of the tunnel LED lamp as claimed in claim 1, wherein: the display module comprises short-circuit alarm lamp, current source start button, data display screen, and the short-circuit alarm lamp is used for indicateing short-circuit information, and current source start button is used for starting the current source, and data display screen shows the position and the unit of short-circuit fault point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120597014.1U CN215067201U (en) | 2021-03-24 | 2021-03-24 | Measuring device based on tunnel LED lamps and lanterns short-circuit fault point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120597014.1U CN215067201U (en) | 2021-03-24 | 2021-03-24 | Measuring device based on tunnel LED lamps and lanterns short-circuit fault point |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215067201U true CN215067201U (en) | 2021-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120597014.1U Active CN215067201U (en) | 2021-03-24 | 2021-03-24 | Measuring device based on tunnel LED lamps and lanterns short-circuit fault point |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215067201U (en) |
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2021
- 2021-03-24 CN CN202120597014.1U patent/CN215067201U/en active Active
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