CN204666800U - A kind of LED Multi-parameter detection device - Google Patents
A kind of LED Multi-parameter detection device Download PDFInfo
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- CN204666800U CN204666800U CN201520402259.9U CN201520402259U CN204666800U CN 204666800 U CN204666800 U CN 204666800U CN 201520402259 U CN201520402259 U CN 201520402259U CN 204666800 U CN204666800 U CN 204666800U
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Abstract
The utility model relates to the technical field such as process of LED electrical characteristic, the detection of light characteristic, the collection of data and signal.Disclose a kind of LED Multi-parameter detection device, comprise PC, also comprise control module, circuit module, electrical characteristics detection module and light characteristic detection module, described control module is by analog signal generator, digital signal generator and communication module composition, described circuit module comprises power supply, switch and LED, described power supply is described LED and electrical characteristics module for power supply, described analog signal generator connects described power supply, described switch connects described LED, described digital signal generator connects described switch and controls the light on and off of described LED, described communication module connects described optical characterization modules, analog signal generator, digital signal generator and with described PC communication.The utility model simplifies traditional hardware configuration, makes the detection of LED electrical characteristic more perfect, improves LED detection efficiency.
Description
Technical field
The utility model relates to the technology such as process of LED electrical characteristic, the detection of light characteristic, the collection of data and signal, particularly relates to a kind of LED Multi-parameter detection device.
Background technology
Along with the lifting of scientific-technical progress and quality of the life, modern more becomes to paying attention to for illumination.Utilize substance combustion to carry out torch, animals and plants oil lamp, candle, the kerosene lamp of luminous lighting from ancient times, utilize the incandescent lamp of electric power luminescence, fluorescent light, or be light emitting diode (the light-emitting diode commonly used now, LED), all display lighting plays the part of epochmaking role in mankind's daily life.Light emitting diode, referred to as LED, is made up of the compound containing gallium (Ga), arsenic (As), phosphorus (P), nitrogen (N) etc.LED can be thrown light in life, and as pilot lamp in circuit and instrument, or form word or numerical monitor, visible LED is extensively used in all trades and professions.Light emitting diode utilizes electronics electricity hole to combine to send monochromatic light, to reach the effect of illumination or warning.Light emitting diode, compared to conventional light source, has that luminescence efficiency is high, an advantage such as long service life, not cracky, reaction velocity are fast.Under the acceleration of the promotion energetically of government in recent years and each city LED street lamp scale expands, LED is used to be seen everywhere as lighting use.
For ensureing the quality of LED, must detect LED before dispatching from the factory, but current detection mode, lack professional research, instrument level is inadequate, makes measuring accuracy low, so the pick-up unit exploitation of LED is extremely urgent.
Conventional LED light Characteristics Detection mode is: the test of LED light characteristic mainly comprises luminous flux, luminescence efficiency, radiation flux, radiation efficiency, light intensity, light distribution characteristic and spectrum parameter etc.General instrument cannot carry out multiple light characteristic parameter detecting.Existing LED electrical characterisitic parameter comprises forward current, forward voltage, inverse current and reverse voltage, LED could normally must work under suitable current/voltage drives, general needs are under constant current constant voltage source powers, volometer is utilized to detect, supply current cannot be realized switch at a high speed and the detection of high precision electro characterisitic parameter, general instrument cannot detect multiple light characteristic parameters such as colourity, aberration, correlated colour temperature and illumination simultaneously, and the detection of LED electrical characteristic, light characteristic cannot be carried out simultaneously.
Utility model content
The utility model lacks specialty research for current LED detection, adopts traditional PLC to control, complex structure, and the problem that prices are rather stiff proposes the Multi-parameter detection device of a kind of PC and NI cDAQ-9178 control.
The technical scheme realizing the utility model object is:
A kind of LED Multi-parameter detection device, comprise PC, for receiving detection signal and processing data, also comprise control module, circuit module, electrical characteristics detection module and light characteristic detection module, described control module is by analog signal generator, digital signal generator and communication module composition, described circuit module comprises power supply, switch and LED, described electrical characteristics module comprises voltage and current signal end, described voltage signal end is connected in parallel on described LED two ends, described current signal section is connected in LED lamp circuit, described power supply is described LED and electrical characteristics module for power supply, described analog signal generator connects described power supply, a simulating signal is provided to control the output of power supply, described switch connects described LED, described digital signal generator connects described switch and controls the light on and off of described LED, described communication module connects described optical characterization modules, analog signal generator, digital signal generator and with described PC communication.
Concrete, described communication module and described PC are USB communication modes.
Preferably, described light characteristic detection module comprises chroma meter and transmitter, and described chroma meter to be arranged on before LED to be detected and to connect described transmitter, and described transmitter connects described communication module.
Concrete, described switch is relay or field effect transistor.
Utility model works principle: be that analog signal generator sets an output signal by PC, analog signal generator controls the output current of power supply, for LED is powered, by digital signal generator gauge tap break-make, corresponding LED light on and off, electrical characteristics detection module detects the electric current of LED, voltage, gathered the illumination of LED by light characteristic detection module simultaneously, light coordinate signal, the electric current that electrical characteristics detection module will detect, voltage signal is sent in PC by RS232, and illumination, light coordinate signal is sent in communication module by transmitter, again the signal of acquisition is sent to PC, in the LabVIEW development platform of PC, the signal accepted is processed, analyze, display.
The utility model has following beneficial effect:
1. in the utility model, adopt analog signal generator to be connected with power supply, for power supply provides a simulating signal, control the output of power supply, realize supply current change at a high speed, for detecting the electrical characteristics of the LED under different electric current, make the detection of electrical characteristics more perfect.
2. the utility model is compared traditional detection mode, detects, improve the efficiency of detection for the LED in detecting while then achieving light characteristic and electrical characteristics.
3. simplify the hardware configuration in traditional detection process, can meet LED photovoltaic multiparameter: the detection of voltage, electric current, colourity, aberration and illumination etc., simultaneously can to the control respectively of multiple LED in testing process, the cost of effective reduction system, significantly improves the processing power of system.
Accompanying drawing explanation
Fig. 1 is apparatus module figure of the present utility model;
Fig. 2 is the structural representation of the utility model embodiment one;
Fig. 3 is the workflow diagram of embodiment one of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail, should be appreciated that structure of the present utility model is not limited in following examples:
As described in Figure 1: a kind of LED Multi-parameter detection device, comprise PC, LabVIEW development platform is had in described PC, can detection signal be received and data are processed, also comprise control module, circuit module, electrical characteristics detection module and light characteristic detection module, described control module is by analog signal generator, digital signal generator and communication module composition, described circuit module comprises power supply, switch and LED, described electrical characteristics module comprises voltage and current signal end, described voltage signal end is connected in parallel on described LED two ends, described current signal section is connected in LED lamp circuit, described power supply is described LED and electrical characteristics module for power supply, described analog signal generator connects described power supply, a simulating signal is provided to control the output of power supply, described switch connects described LED, described digital signal generator connects described switch and controls the light on and off of described LED, described communication module connects described optical characterization modules, analog signal generator, digital signal generator and with described PC communication, described communication module and described PC are USB communication modes, described light characteristic detection module comprises chroma meter and transmitter, described chroma meter to be arranged on before LED to be detected and to connect described transmitter, described transmitter connects described communication module, described switch is relay or field effect transistor.
Embodiment one:
As shown in Figure 2 and Figure 3, in the present embodiment, in PC, there is LabVIEW development platform, can detection signal be received and data are processed, showing in modes such as oscillograms, make result more directly perceived; Control module adopts NI cDAQ-9178, and NI cDAQ-9178 is a 8 groove NI CompactDAQ USB cabinets, and NI cDAQ-9178 control module is made up of NI-9263, NI-9203, NI-9375.In the present embodiment, NI-9263 is equivalent to analog signal generator, and wherein NI-9263 has 4 analog output channels, tunnel, and AO0, AO1 can provide a simulating signal to power supply, controls the output current of power supply, adjustment supply current; In the present embodiment, NI-9203 is equivalent to communication module, and NI-9203 has 8 road analog input channels, can Received signal strength, and sends signal in PC; In the present embodiment, NI-9375 is equivalent to digital signal generator, and NI-9375 has 15 railway digital output channels, and DO0 to DO7 respectively by the break-make of relay control switch, thus controls the light on and off of LED; Circuit module is made up of power supply, relay and 8 LED; Electrical characteristics detection module is high-precision multimeter, substantially increases measuring accuracy, makes measurement result more reliable; Light characteristic detection module is made up of CL-200A type chroma meter, transmitter.CL-200A type chroma meter, can detect respectively multiple light characteristic parameters such as colourity, aberration, correlated colour temperature and illumination, the signal detected is converted to voltage signal by transmitter again, is sent in NI-9203.
The principle of work of the present embodiment: provide a simulating signal to power supply by analog output channel AO0, AO1 of PC control NI-9263, control the output current of power supply, for LED is powered, digital output channel DO0 to DO7 in NI-9375, respectively by the break-make of relay control switch, existing DO0 exports a signal, makes a certain small cup LED bright, high-precision multimeter detects electric current, the voltage of LED, and the electric current of detection, voltage data is sent on PC by RS232.PC shows testing result intuitively by LabVIEW software.Simultaneously, CL-200A type chroma meter gathers the colourity of LED, aberration, correlated colour temperature and illumination light characteristic parameter, then by transmitter, colourity, aberration, correlated colour temperature and illumination light characteristic parameter signal are converted to transmissible normalization output signal, finally be sent in NI-9203, then the signal of acquisition is sent in PC.In the LabVIEW development platform of PC, the signal accepted is processed, analyzes, shown.
More than show and describe ultimate principle of the present utility model and principal character and advantage of the present utility model.The technology people of this area should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. a LED Multi-parameter detection device, comprise PC, for receiving detection signal and processing data, it is characterized in that, also comprise control module, circuit module, electrical characteristics detection module and light characteristic detection module, described control module is by analog signal generator, digital signal generator and communication module composition, described circuit module comprises power supply, switch and LED, described electrical characteristics module comprises voltage and current signal end, described voltage signal end is connected in parallel on described LED two ends, described current signal section is connected in LED lamp circuit, described power supply is described LED and electrical characteristics module for power supply, described analog signal generator connects described power supply, a simulating signal is provided to control the output of power supply, described switch connects described LED, described digital signal generator connects described switch and controls the light on and off of described LED, described communication module connects described optical characterization modules, analog signal generator, digital signal generator and with described PC communication.
2. LED Multi-parameter detection device according to claim 1, is characterized in that, described communication module and described PC are USB communication modes.
3. LED Multi-parameter detection device according to claim 1, it is characterized in that, described light characteristic detection module comprises chroma meter and transmitter, and described chroma meter to be arranged on before LED to be detected and to connect described transmitter, and described transmitter connects described communication module.
4. LED Multi-parameter detection device according to claim 1, is characterized in that, described switch is relay or field effect transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520402259.9U CN204666800U (en) | 2015-06-09 | 2015-06-09 | A kind of LED Multi-parameter detection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520402259.9U CN204666800U (en) | 2015-06-09 | 2015-06-09 | A kind of LED Multi-parameter detection device |
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| CN204666800U true CN204666800U (en) | 2015-09-23 |
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| CN201520402259.9U Expired - Fee Related CN204666800U (en) | 2015-06-09 | 2015-06-09 | A kind of LED Multi-parameter detection device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044625A (en) * | 2015-06-09 | 2015-11-11 | 安徽工程大学 | LED lamp multi-parameter detection device |
| CN110108451A (en) * | 2019-05-15 | 2019-08-09 | 上海粲高教育设备有限公司 | The detection method and device of fluorescence lamp efficiency and the monitoring method of fluorescent lamp |
-
2015
- 2015-06-09 CN CN201520402259.9U patent/CN204666800U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044625A (en) * | 2015-06-09 | 2015-11-11 | 安徽工程大学 | LED lamp multi-parameter detection device |
| CN110108451A (en) * | 2019-05-15 | 2019-08-09 | 上海粲高教育设备有限公司 | The detection method and device of fluorescence lamp efficiency and the monitoring method of fluorescent lamp |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150923 Termination date: 20160609 |
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| CF01 | Termination of patent right due to non-payment of annual fee |