CN108344955A - A kind of current sensing means and method for Vehicular lamp humid test - Google Patents
A kind of current sensing means and method for Vehicular lamp humid test Download PDFInfo
- Publication number
- CN108344955A CN108344955A CN201710060687.1A CN201710060687A CN108344955A CN 108344955 A CN108344955 A CN 108344955A CN 201710060687 A CN201710060687 A CN 201710060687A CN 108344955 A CN108344955 A CN 108344955A
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- China
- Prior art keywords
- recorder
- current signal
- current
- galvo
- test specimen
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/44—Testing lamps
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The present invention relates to a kind of current sensing means and method for Vehicular lamp humid test, described device includes PLC controller, the current signal detection unit for acquiring test specimen current signal and the galvo-recorder for recording the current signal for placing the chamber of test specimen, working for Control experiment sample, the PLC controller, current signal detection unit and galvo-recorder may be contained within outside chamber, and the galvo-recorder is separately connected PLC controller and current signal detection unit；Test specimen is set in chamber, current sensing means is powered, PLC controller controls the test specimen and is lighted and extinguished by setpoint frequency, current signal detection unit acquisition test specimen is lighted with the current signal transfer of extinguishing process to galvo-recorder, and galvo-recorder records the current signal received.Compared with prior art, the present invention has many advantages, such as accurate test sample current data, not will produce extra power consumption.
Description
Technical field
The present invention relates to humid test technologies, are filled more particularly, to a kind of current detecting for Vehicular lamp humid test
It sets and method.
Background technology
In the prior art, the detection of automobile lamp is tested greatly.Vehicular lamp is during humid test, lamp meeting
Repeat switch, in order to which when sample survey can fail, voltage when detection being needed to turn on light every time, with the whether normal work of alarm lamp
Make.But traditional test method is the mode using series resistance, the voltage at resistance both ends is measured, to be converted into electric current.This
Kind method influences the electric current in entire circuit since resistance itself can consume power so that measuring accuracy reduces, and cannot accurately obtain
The data needed.
Invention content
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide one kind being used for Vehicular lamp
The current sensing means of humid test.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of current sensing means for Vehicular lamp humid test, include for place the chamber of test specimen,
For Control experiment sample work PLC controller, for acquire the current signal detection unit of test specimen current signal with
And the galvo-recorder for recording the current signal, the PLC controller, current signal detection unit and galvo-recorder
It may be contained within outside chamber, the galvo-recorder is separately connected PLC controller and current signal detection unit.
The chamber includes chamber ontology and is set to electricity in chamber ontology for powering to test specimen
Source.
The current signal detection unit includes the Hall sensor and filter circuit being connected, the filter circuit it is defeated
Outlet is connect with galvo-recorder, and when carrying out current detecting, Hall sensor is connected on the power cord of test specimen.
The galvo-recorder includes microcontroller, RTC clock, FLASH memory and power interface, the microcontroller
A D interface connect with current signal detection unit, the FLASH memory, RTC clock and PLC controller respectively with microcontroller
The SPI interface of device connects, and the power interface is connect with external power supply, realizes microcontroller, RTC clock and FLASH memory
Power supply.
The galvo-recorder is additionally provided with for by USB interface derived from current information.
The PLC controller, current signal detection unit and galvo-recorder are packaged in a shell, which is provided with
Electric source line interface, control line interface and external power interface.
A kind of electric current detecting method realized using the above-mentioned current sensing means for Vehicular lamp humid test, including
Following steps：
1) test specimen is set in chamber, current signal detection unit is connected on the power cord of test specimen；
2) current sensing means is powered, and PLC controller controls the test specimen and lighted and extinguished by setpoint frequency, simultaneously
Galvo-recorder is sent control signals to, galvo-recorder is started to work；
3) current signal detection unit acquisition test specimen, which is lighted, records with the current signal transfer of extinguishing process to electric current
Instrument；
4) current signal and corresponding moment that the galvo-recorder record receives.
Compared with prior art, the present invention has the following advantages：
1) test specimen is separately set in chamber by the present invention, then passes through current signal detection unit and test sample
The power cord of product connects, can be in the case of not series resistance, the current data of accurate test sample.
2) current sensor of the present invention does not access the test loop of test specimen, not will produce extra power consumption, does not influence
The reliability of the test result of product itself, humid test is high.
3) galvo-recorder of the present invention is based on microcontroller implementation, while having RTC clock and FLASH memory, has
The big advantage of cycle accurate, memory capacity.
4) galvo-recorder of the present invention is additionally provided with USB interface, facilitates the export of data, can accurate recording and use electric current number
According to.
5) PLC controller, current signal detection unit and galvo-recorder of the invention can be separated with test specimen sets
It sets, two rooms can be distributed in by long conducting wire, influence each other smaller, and test reliability is high.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of current signal detection unit of the present invention.
Specific implementation mode
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention
Premised on implemented, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to
Following embodiments.
As shown in Figure 1, the present embodiment provides a kind of current sensing means for Vehicular lamp humid test, including it is used for
Place the chamber 2 of test specimen 1, the PLC controller 3 to work for Control experiment sample 1, for acquiring the electricity of test specimen 1
Flow the current signal detection unit 4 of signal and the galvo-recorder 5 for record current signal, PLC controller 3, electric current letter
Number detection unit 4 and galvo-recorder 5 may be contained within outside chamber 2, and galvo-recorder 5 is separately connected PLC controller 3 and electric current
Detecting signal unit 4.
Chamber 2 is including chamber ontology and is set to the power supply in chamber ontology being used to power to test specimen 1.
As shown in Fig. 2, current signal detection unit 4 includes the Hall sensor and filter circuit being connected, filter circuit
Output end connect with galvo-recorder, carry out current detecting when, Hall sensor is connected on the power cord of test specimen.This
In embodiment, filter circuit uses RC circuits.
In the present embodiment, galvo-recorder 5 includes microcontroller, RTC clock, FLASH memory and power interface, micro-control
The A D interface of device processed is connect with current signal detection unit, FLASH memory, RTC clock and PLC controller respectively with microcontroller
The SPI interface of device connects, and power interface is connect with external power supply, realizes the confession of microcontroller, RTC clock and FLASH memory
Electricity.In another embodiment of the present invention, galvo-recorder 5 is additionally provided with for by USB interface derived from current information.
In another embodiment of the present invention, PLC controller 3, current signal detection unit 4 and galvo-recorder 5 are packaged in
In one shell 6, which is provided with electric source line interface, control line interface and external power interface, electric source line interface and control line
Interface is connect with test specimen respectively, and external power interface is connect with external power supply.
The electric current detecting method realized using the above-mentioned current sensing means for Vehicular lamp humid test includes following
Step：
1) test specimen is set in chamber, current signal detection unit is connected on the power cord of test specimen；
2) current sensing means is powered, and PLC controller Control experiment sample is lighted and extinguished by setpoint frequency, while will control
Signal processed is sent to galvo-recorder, and galvo-recorder is started to work；
3) current signal detection unit acquisition test specimen, which is lighted, records with the current signal transfer of extinguishing process to electric current
Instrument；
4) current signal and corresponding moment that galvo-recorder record receives.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that those skilled in the art without
It needs creative work according to the present invention can conceive and makes many modifications and variations.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical solution, all should be in the protection domain being defined in the patent claims.
Claims (7)
1. a kind of current sensing means for Vehicular lamp humid test, which is characterized in that including being used to place test specimen
Chamber, for Control experiment sample work PLC controller, for acquire test specimen current signal current signal examine
Survey unit and the galvo-recorder for recording the current signal, the PLC controller, current signal detection unit and electricity
Stream recorder may be contained within outside chamber, and the galvo-recorder is separately connected PLC controller and current signal detection unit.
2. the current sensing means according to claim 1 for Vehicular lamp humid test, which is characterized in that the examination
Tryoff includes chamber ontology and is set to power supply in chamber ontology for powering to test specimen.
3. the current sensing means according to claim 1 for Vehicular lamp humid test, which is characterized in that the electricity
Stream detecting signal unit includes the Hall sensor and filter circuit being connected, and output end and the electric current of the filter circuit record
Instrument connects, and when carrying out current detecting, Hall sensor is connected on the power cord of test specimen.
4. the current sensing means according to claim 1 for Vehicular lamp humid test, which is characterized in that the electricity
It includes microcontroller, RTC clock, FLASH memory and power interface, the A D interface and electric current of the microcontroller to flow recorder
Detecting signal unit connects, and the FLASH memory, RTC clock and PLC controller connect with the SPI interface of microcontroller respectively
It connects, the power interface is connect with external power supply, realizes the power supply of microcontroller, RTC clock and FLASH memory.
5. the current sensing means according to claim 4 for Vehicular lamp humid test, which is characterized in that the electricity
Stream recorder is additionally provided with for by USB interface derived from current information.
6. the current sensing means according to claim 1 for Vehicular lamp humid test, which is characterized in that described
PLC controller, current signal detection unit and galvo-recorder are packaged in a shell, the shell be provided with electric source line interface,
Control line interface and external power interface.
7. a kind of current detecting realized using the current sensing means for Vehicular lamp humid test described in claim 1
Method, which is characterized in that include the following steps：
1) test specimen is set in chamber, current signal detection unit is connected on the power cord of test specimen；
2) current sensing means is powered, and PLC controller controls the test specimen and lighted and extinguished by setpoint frequency, while will control
Signal processed is sent to galvo-recorder, and galvo-recorder is started to work；
3) current signal detection unit acquisition test specimen lights the current signal transfer with extinguishing process to galvo-recorder；
4) current signal and corresponding moment that the galvo-recorder record receives.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710060687.1A CN108344955A (en) | 2017-01-25 | 2017-01-25 | A kind of current sensing means and method for Vehicular lamp humid test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710060687.1A CN108344955A (en) | 2017-01-25 | 2017-01-25 | A kind of current sensing means and method for Vehicular lamp humid test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108344955A true CN108344955A (en) | 2018-07-31 |
Family
ID=62962991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710060687.1A Pending CN108344955A (en) | 2017-01-25 | 2017-01-25 | A kind of current sensing means and method for Vehicular lamp humid test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108344955A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112731908A (en) * | 2021-01-04 | 2021-04-30 | 潍柴动力股份有限公司 | Device and method for controlling sample piece to be powered on and powered off |
-
2017
- 2017-01-25 CN CN201710060687.1A patent/CN108344955A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112731908A (en) * | 2021-01-04 | 2021-04-30 | 潍柴动力股份有限公司 | Device and method for controlling sample piece to be powered on and powered off |
| CN112731908B (en) * | 2021-01-04 | 2021-12-21 | 潍柴动力股份有限公司 | Device and method for controlling sample piece to be powered on and powered off |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180731 |