CN213091849U - Car light test system - Google Patents
Car light test system Download PDFInfo
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- CN213091849U CN213091849U CN202022023357.5U CN202022023357U CN213091849U CN 213091849 U CN213091849 U CN 213091849U CN 202022023357 U CN202022023357 U CN 202022023357U CN 213091849 U CN213091849 U CN 213091849U
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Abstract
The utility model provides a car light test system, including programmable power module, multi-way switch switching module, industrial computer module, data acquisition module and output control port module, wherein, programmable power module is used for providing the power of different functions or parameters for the car light under test; the multi-way switch switching module is used for switching the test ports of the tested car lamps; the industrial personal computer module is used for controlling and monitoring the output parameters of the programmable power supply module according to the test requirements; the data acquisition module is used for acquiring the current or voltage of the tested vehicle lamp; the output control port module is used for connecting the port of the tested vehicle lamp, fills the blank of a test system special for testing the atmosphere lamp in the market, CAN meet the requirements of high-precision and high-frequency acquisition of voltage and current, CAN test a plurality of or various atmosphere lamps, and is compatible with the test of a conventional vehicle lamp and a CAN communication vehicle lamp.
Description
Technical Field
The utility model relates to a test technical field of car light especially relates to a support test of conventional car light and CAN, LIN communication car light test, CAN also compatible atmosphere lamp test's car light test system simultaneously.
Background
With the continuous improvement of national economic level, the configuration and the comfort level in the car are more and more paid close attention to the consumer, and the driving experience of the consumer can be obviously improved to the atmosphere lamp, so more and more car enterprises begin to configure the atmosphere lamp, and the consumer is captured through the soft configurations, so that the competitiveness is improved.
One car needs to dispose dozens or dozens of atmosphere lamps, and vehicle control unit carries out car light colour conversion or bright going out control through LIN, and present traditional car light test system can only support the relay break-make to control the car light and go out, because atmosphere lamp test has following difficult point: the number of test channels is large, each channel needs to collect voltage and current signals, and the collection frequency is 0.1%; the current of each atmosphere lamp is in milliampere level, and the requirement on current sampling precision is high; the color conversion of the RGB of the car lamp is controlled by LIN; there is therefore currently substantially no test system on the market that is specifically designed for atmosphere lamp testing.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a car light test system has filled the blank of testing atmosphere lamp test system specially on the market for car light test system CAN satisfy the collection requirement of voltage and electric current high accuracy, high frequency, realizes the test of a plurality of or multiple atmosphere lamp tests and compatible conventional car light and CAN, LIN communication car light.
In order to achieve the above object, the technical solution of the present invention is specifically realized as follows:
the utility model discloses a car light test system, including programmable power module, multi-way switch switching module, industrial computer module, data acquisition module and output control port module, wherein, programmable power module is used for providing the power of different functions or parameters for the car light under test; the multi-way switch switching module is used for switching the test ports of the tested car lamps; the industrial personal computer module is used for controlling and monitoring the output parameters of the programmable power supply module according to the test requirements; the data acquisition module is used for acquiring the current or voltage of the tested vehicle lamp; the output control port module is used for connecting a port of the tested vehicle lamp.
Furthermore, the data acquisition module comprises a current acquisition circuit and/or a voltage acquisition circuit and a singlechip, wherein the current acquisition circuit is used for acquiring the current of the tested car lamp; the voltage acquisition circuit is used for acquiring the voltage of the tested car lamp; the singlechip is used for receiving and processing the data acquired by the current acquisition circuit and/or the voltage acquisition circuit.
Further, the multi-way switch switching module comprises at least one multi-way switch chip.
Further, the multi-channel switch chip is an 8-channel switch chip.
Further, the multi-way switch switching module comprises 8 groups of multi-way switch chips.
Further, when the vehicle lamp testing system tests, 8 groups of the multi-way switch chips respectively select one channel.
The beneficial technical effects are as follows:
1. the utility model discloses a car light test system, including programmable power module, multi-way switch switching module, industrial computer module, data acquisition module and output control port module, wherein, programmable power module is used for providing the power of different functions or parameters for the car light under test; the multi-way switch switching module is used for switching the test ports of the tested car lamps; the industrial personal computer module is used for controlling and monitoring the output parameters of the programmable power supply module according to the test requirements; the data acquisition module is used for acquiring the current or voltage of the tested vehicle lamp; the output control port module is used for connecting a port of a tested vehicle lamp, fills the blank of a test system special for testing atmosphere lamps in the market, CAN meet the requirements of high-precision and high-frequency acquisition of voltage and current, CAN test a plurality of or various atmosphere lamps, and is compatible with the tests of conventional vehicle lamps, CAN and LIN communication vehicle lamps;
2. in the utility model, the single output port of the programming power supply expands the output control port in a multi-way switch switching mode, tests a plurality of or a plurality of atmosphere lamps, and can simplify the data acquisition channel;
3. the utility model discloses in, furtherly, the multi-way switch switches the module and includes 8 multi-way switch chips of group, and the test channel has expanded 8 times.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiments will be briefly described below.
Fig. 1 is a schematic diagram of a car light testing system according to the present invention;
fig. 2 is a schematic diagram of the multi-way switch chip switching and current and voltage acquisition in the car light testing system of the present invention;
fig. 3 is a schematic diagram of an automatic switching method of 0.1% sampling precision and current gears in a car lamp testing system.
The system comprises a programmable power module 1, a multi-way switch switching module 2, an industrial personal computer module 3, a data acquisition module 4 and an output control port module 5.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
The utility model discloses a car light test system, see fig. 1, the car light test system includes programmable power module, multi-way switch switching module, industrial computer module, data acquisition module and output control port module, wherein, programmable power module is used for providing the power of different functions or parameters for the car light under test; the multi-way switch switching module is used for switching the test ports of the tested car lamps; the industrial personal computer module is used for controlling and monitoring the output parameters of the programmable power supply module according to the test requirements; the data acquisition module is used for acquiring the current or voltage of the tested vehicle lamp; output control port module is used for connecting the port of being surveyed the car light, the utility model discloses a car light test system has filled the blank of the test system who tests atmosphere lamp on the market specially, CAN satisfy voltage and electric current high accuracy, high frequency acquisition requirement, CAN carry out the test of a plurality of or multiple atmosphere lamp and the test of compatible conventional car light, CAN, LIN communication car light simultaneously.
As an embodiment of the present invention, the data acquisition module includes a current acquisition circuit and/or a voltage acquisition circuit, and a single chip, that is, the data acquisition module may only include the current acquisition circuit or only include the voltage acquisition circuit, and may also include the current acquisition circuit and the voltage acquisition circuit at the same time; the current acquisition circuit is used for acquiring the current of the tested vehicle lamp, the current acquisition is divided into 2 ranges, one range is 0-1A, the other range is 0-30A, the sensor signals are automatically switched, and the principle is shown in figure 2; the voltage acquisition circuit is used for acquiring the voltage of the tested car lamp; the singlechip is used for receiving and processing the data acquired by the current acquisition circuit and/or the voltage acquisition circuit.
As an embodiment of the utility model, the multi-channel switch module uses multi-channel analog switch chip, through the microcontroller programming, according to the specific time sequence or communication protocol channel decoding, gate the channel to be detected, preferably, a group of atmosphere lamp test channels uses an 8-channel analog switch chip to switch, the switching time can reach 2 ms/channel at the fastest, the embodiment contains 8 groups of multi-channel analog switch chips, the test channel is expanded 8 times, each group of multi-channel analog switch chips contains 8 channels, when using the vehicle lamp test system disclosed by the embodiment of the utility model to test the atmosphere lamp, each group simultaneously gates one channel, namely 8 groups of common-gated 8 channels each time, the single output port of the programming power supply expands the output control port by the multi-channel switch switching mode, to test a plurality of or a plurality of atmosphere lamps, the data acquisition channel can be simplified.
As the utility model discloses an embodiment chooses high accuracy, low temperature to float the data signal conversion that sampling resistor will gather for use and to voltage signal, utilizes accurate difference operational amplifier to enlarge the small signal to suitable scope, carries out noise filtering and signal compensation through multistage butterworth low pass filter, carries out the analog quantity sampling through 16 high resolution ADC at last, and output digital signal realizes 0.1% sampling precision.
As the utility model discloses an embodiment, through the electric current size comparator, selects suitable range threshold value, constantly compares the electric current size when the sampling begins, when sampling current surpassed preset threshold value, and little control carries out the automatic sampling and switches, updates amplifier magnification and switching current gear, two grades of automatic switch-overs of electric current, as shown in fig. 3.
At present, the control mode of an automobile atmosphere lamp is mainly LIN control, working current is generally below 1000mA, when large parameter measurement is carried out according to standard requirements, 3 different voltages are required to be applied to the atmosphere lamp under 3 different temperature environments of high temperature, low temperature and normal temperature to measure the working current of the atmosphere lamp under specific temperature and specific voltage, and 9 groups of current value data are required to be measured for 1 atmosphere lamp.
Utilize the utility model discloses car light test system tests the concrete flow of atmosphere lamp as follows:
selecting atmosphere lamps meeting the requirements of appearance, light distribution, function and the like, wherein 3 conductors are arranged on a connector, an anode wire is connected with a power anode of a vehicle lamp testing system, a cathode wire is connected with a power cathode of the vehicle lamp testing system, a signal wire is connected with an LIN signal transmitter integrated with the vehicle lamp testing system, when a program is set to start the testing system, power supply output voltage and current are added with the transmitted LIN signal after the power supply outputs the voltage and the current to a load atmosphere lamp, the atmosphere lamp starts to work, the output voltage and the current of the atmosphere lamp return to a collector integrated in the vehicle lamp testing system again at the moment, and automatic collection of the output voltage and the current of the atmosphere lamp is.
With 64 atmosphere lamp numbers (at present the utility model discloses an every suit of test system exportable 160 passageways), and to the number with the wire, signal line and car light test system power connection, every 8 atmosphere lamps are 1 group, totally 8 groups, when beginning the test, at first the multiway switch module with power output voltage and electric current direction the 1 st group, accomplish the test and the record of the 1 st group 1# -8 # atmosphere lamps, then switch to the 2 nd group in 2ms, accomplish the test and the record of the 2 nd group 9# -16 # atmosphere lamps, analogize with this, until accomplishing the test.
It can be understood of course, the utility model discloses a car light test system can make the control procedure of the temperature box of different temperature ambient conditions calculate the time that the atmosphere lamp changes voltage, automatic switch-over, circular telegram work, collection, comes the whole test system of editor's program control, and car light test system can increase temperature signal sensor certainly, and when the temperature reachd standard specified value, test system automatic switch-on, the wiring is accomplished the back, realizes automatic test.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by the technical solutions of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.
Claims (6)
1. A vehicle lamp testing system, comprising:
the programmable power supply module is used for providing power supplies with different functions or parameters for the tested car lamp;
the multi-way switch switching module is used for switching the test ports of the tested car lamps;
the industrial personal computer module is used for controlling and monitoring the output parameters of the programmable power supply module according to the test requirements;
the data acquisition module is used for acquiring the current or voltage of the tested vehicle lamp;
and the output control port module is used for connecting the port of the tested vehicle lamp.
2. The vehicle lamp testing system according to claim 1, wherein the data acquisition module comprises a current acquisition circuit and/or a voltage acquisition circuit, and a single chip microcomputer;
the current acquisition circuit is used for acquiring the current of the tested car lamp;
the voltage acquisition circuit is used for acquiring the voltage of the tested car lamp;
and the singlechip is used for receiving and processing the data acquired by the current acquisition circuit and/or the voltage acquisition circuit.
3. The vehicular lamp testing system according to claim 1, wherein the multi-way switch switching module comprises at least one group of multi-way switch chips.
4. The vehicular lamp testing system according to claim 3, wherein the multi-way switch chip is an 8-way channel switch chip.
5. The vehicle lamp testing system according to claim 3, wherein the multi-way switch switching module comprises 8 groups of multi-way switch chips.
6. The vehicle lamp testing system according to claim 5, wherein when the vehicle lamp testing system tests, 8 groups of the multi-way switch chips respectively select one channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022023357.5U CN213091849U (en) | 2020-09-16 | 2020-09-16 | Car light test system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022023357.5U CN213091849U (en) | 2020-09-16 | 2020-09-16 | Car light test system |
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| CN213091849U true CN213091849U (en) | 2021-04-30 |
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| CN202022023357.5U Active CN213091849U (en) | 2020-09-16 | 2020-09-16 | Car light test system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113110405A (en) * | 2021-05-27 | 2021-07-13 | 湖南汽车工程职业学院 | Multi-channel test system for chassis embedded control panel for automatic driving |
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- 2020-09-16 CN CN202022023357.5U patent/CN213091849U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113110405A (en) * | 2021-05-27 | 2021-07-13 | 湖南汽车工程职业学院 | Multi-channel test system for chassis embedded control panel for automatic driving |
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