CN115308373A - Device and method for automatically testing nitrogen-oxygen sensor assembly - Google Patents
Device and method for automatically testing nitrogen-oxygen sensor assembly Download PDFInfo
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- CN115308373A CN115308373A CN202210942300.6A CN202210942300A CN115308373A CN 115308373 A CN115308373 A CN 115308373A CN 202210942300 A CN202210942300 A CN 202210942300A CN 115308373 A CN115308373 A CN 115308373A
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- nitrogen
- oxygen sensor
- personal computer
- industrial personal
- power supply
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- DOTMOQHOJINYBL-UHFFFAOYSA-N molecular nitrogen;molecular oxygen Chemical compound N#N.O=O DOTMOQHOJINYBL-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 238000012360 testing method Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000004891 communication Methods 0.000 claims abstract description 35
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 13
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000001301 oxygen Substances 0.000 claims abstract description 12
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 12
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 6
- 230000007246 mechanism Effects 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims 3
- 238000010408 sweeping Methods 0.000 claims 1
- 230000002950 deficient Effects 0.000 abstract description 7
- 238000012216 screening Methods 0.000 abstract description 6
- 238000001514 detection method Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000013102 re-test Methods 0.000 description 1
- 238000012031 short term test Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/007—Arrangements to check the analyser
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
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- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Combustion & Propulsion (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a device and a method for automatically testing a nitrogen-oxygen sensor assembly, wherein the device comprises a code scanning gun, testing equipment and an indicator light, wherein the testing equipment consists of an industrial personal computer, a communication type digital adjustable power supply and a CAN bus tester; the industrial personal computer is provided with an upper computer, the code scanning gun is in communication connection with the industrial personal computer, and the indicator lamp and the communication type digital adjustable power supply are in communication connection with the industrial personal computer; one end of the CAN bus tester is in communication connection with the industrial personal computer, and the other end of the CAN bus tester is in communication connection with the nitrogen-oxygen sensor; the communication type digital adjustable power supply and the CAN bus tester are connected with the all-in-one plug. The invention can realize the function of automatically detecting the communication protocol of the nitrogen-oxygen sensor assembly; screening out products with protocol errors; the function of automatically detecting the ignition time of the nitrogen-oxygen sensor assembly can be realized; screening defective products with slow ignition time; the concentration of nitrogen, oxygen in the air of the nitrogen and oxygen sensor assembly can be automatically detected; and screening defective products with larger precision errors.
Description
Technical Field
The invention relates to the technical field of sensor detection, in particular to a device and a method for automatically testing a nitrogen-oxygen sensor assembly.
Background
With the continuous improvement of the tail gas emission standard of motor vehicles, the market demand of oxygen sensors which have a decisive role in engine tail gas purification devices is continuously increased, and meanwhile, the detection precision and the service life of the oxygen sensors are increasingly improved.
In order to ensure the matching performance of the nitrogen-oxygen sensor assembly with a vehicle type protocol, the detection precision of nitrogen-oxygen and oxygen concentration, the ignition time and the like, the nitrogen-oxygen sensor can be subjected to factory test performance before the nitrogen-oxygen sensor leaves a factory, and in order to improve the test efficiency, reduce the cost, ensure the product performance and eliminate defective products, the device and the method for automatically testing the nitrogen-oxygen sensor assembly are provided.
Disclosure of Invention
The invention aims to provide a device and a method for automatically testing a nitrogen-oxygen sensor assembly, which can ensure that the nitrogen-oxygen sensor is perfectly matched with a vehicle type, improve the testing efficiency, reduce the cost, ensure the product performance and eliminate defective products.
In order to achieve the purpose, the invention provides the following technical scheme:
a device for automatically testing a nitrogen-oxygen sensor assembly comprises a code scanning gun, testing equipment and an indicator light, wherein the testing equipment consists of an industrial personal computer, a communication type digital adjustable power supply and a CAN bus tester;
the industrial personal computer is provided with an upper computer, the code scanning gun is in communication connection with the industrial personal computer, and the indicator lamp and the communication type digital adjustable power supply are in communication connection with the industrial personal computer;
one end of the CAN bus tester is in communication connection with the industrial personal computer, and the other end of the CAN bus tester is in communication connection with the nitrogen-oxygen sensor;
the communication type digital adjustable power supply and the CAN bus tester are connected with the all-in-one plug.
Further, sweep a yard rifle with the industrial computer passes through USB mouth communication.
Further, the indicator light, the communication type digital adjustable power supply and the industrial personal computer are communicated through an RS485 bus.
Furthermore, one end of the CAN bus tester communicates with the industrial personal computer through a USB interface, and the other end of the CAN bus tester communicates with the nitrogen oxygen sensor through a CAN bus.
Furthermore, one end of the all-in-one rotary plug is connected with the assembly testing device by adopting a six-pin aerial plug connector, and the other end of the all-in-one rotary plug is connected with various mechanism plug types in parallel and is matched with different mechanism interfaces.
Further, sweep a yard rifle and adopt wireless formula separation to sweep a yard rifle.
Further, a method for automatically testing a nitrogen-oxygen sensor assembly:
(A) The nitrogen oxygen sensor is connected with the all-in-one plug, a two-dimensional code on the product shell is scanned by using a code scanning gun, and the two-dimensional code contains the model information of the nitrogen oxygen sensor;
(B) According to the model information, the digital adjustable power supply provides power supply with different voltage grades;
(C) The upper computer detects that the voltage is normal, automatically sends a dew point starting instruction of the nitrogen-oxygen sensor, starts to record the ignition time of the nitrogen-oxygen sensor, and judges whether the product is qualified or not together with the detected nitrogen and oxygen concentrations in the air;
(D) And after the product is qualified, a software version information request instruction is automatically sent to ensure that communication protocols of different products are normal, and after the product is detected, the indicator light turns on a green light, so that the product is qualified.
Compared with the prior art, the invention has the beneficial effects that:
the device for automatically testing the nitrogen oxygen sensor assembly can realize the function of automatically detecting the communication protocol of the nitrogen oxygen sensor assembly; screening out products with protocol errors; the function of automatically detecting the ignition time of the nitrogen-oxygen sensor assembly can be realized; screening defective products with slow ignition time; the concentration of nitrogen, oxygen and oxygen in the air of the nitrogen and oxygen sensor assembly can be automatically detected; and screening defective products with larger precision errors.
Drawings
FIG. 1 is a block diagram schematically illustrating the structure of the present invention;
FIG. 2 is a schematic flow chart of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Example 1, please refer to fig. 1:
an automatic test nitrogen oxygen sensor assembly device comprises a code scanning gun, a communication type digital adjustable power supply, a CAN bus tester, an industrial personal computer, an upper computer, an NG indicator light and an all-in-one plug. The host computer is installed on the industrial computer, sweep a yard equipment and pass through USB mouth communication with the industrial computer, NG, the pilot lamp, the digital adjustable power of communication type carries out data communication through the RS485 bus with the industrial computer, CAN bus tester one end passes through USB mouth communication with the industrial computer end, the other end passes through CAN bus and nitrogen oxygen sensor communication, many unification plugs are even gone into with power output interface (B +, E) to CAN bus (CAN _ H, CAN _ L).
Wherein, sweep a yard rifle and adopt wireless formula separation to sweep a yard rifle, can sweep a yard data remotely and upload, but short-term test nitrogen oxygen sensor model.
Wherein, contain on the host computer interface, nitrogen oxygen concentration, the status indicator lamp of light-off time, product work, product model, product operating voltage grade, test time, current date.
One end of the all-in-one rotating plug is connected with the assembly testing device by adopting a six-pin aerial plug connector (B +/E/CAN _ H/CAN _ L/ADRESS SELECT), and the other end of the all-in-one rotating plug is connected with various mechanism plug types in parallel (square four, flat five, flat six, round four and round five) to be matched with different mechanism interfaces.
As shown in fig. 2: the method for automatically testing the nitrogen-oxygen sensor assembly specifically comprises the following steps:
after nitrogen oxygen sensor attach plug, use and sweep two-dimensional code on the sign indicating number rifle scanning product casing, contain this nitrogen oxygen sensor model information in the two-dimensional code. And according to the model information, the digital adjustable power supply provides power supply with different voltage levels. The host computer detects that voltage is normal, sends nitrogen oxygen sensor dew point start-up instruction automatically to begin to record nitrogen oxygen sensor and start to fire time, with detect nitrogen gas and oxygen concentration in the air, judge whether qualified product, automatic software version information request instruction of sending after qualified, ensure that different product communication protocol is normal, product detection finishes, and the NG pilot lamp lights green light, and the product is qualified.
The device and the method for automatically testing the nitrogen-oxygen sensor assembly are used for realizing the matching of the nitrogen-oxygen sensor assembly with a vehicle type protocol before delivery, the detection precision of nitrogen-oxygen and oxygen concentration, the re-testing of functions such as ignition time and the like, so that the aims of ensuring the product performance and eliminating defective products are fulfilled.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides an automatic test nitrogen oxygen sensor assembly's device, is including sweeping yard rifle, test equipment, pilot lamp, its characterized in that: the testing equipment consists of an industrial personal computer, a communication type digital adjustable power supply and a CAN bus tester;
the industrial personal computer is provided with an upper computer, the code scanning gun is in communication connection with the industrial personal computer, and the indicator lamp and the communication type digital adjustable power supply are in communication connection with the industrial personal computer;
one end of the CAN bus tester is in communication connection with the industrial personal computer, and the other end of the CAN bus tester is in communication connection with the nitrogen oxide sensor;
the communication type digital adjustable power supply and the CAN bus tester are connected with the all-in-one plug.
2. The apparatus of claim 1, wherein the apparatus comprises: the code scanning gun is communicated with the industrial personal computer through a USB port.
3. The apparatus of claim 1, wherein the apparatus comprises: the indicator light, the communication type digital adjustable power supply and the industrial personal computer are communicated through an RS485 bus.
4. The apparatus of claim 1, wherein the apparatus comprises: one end of the CAN bus tester communicates with the industrial personal computer through a USB interface, and the other end of the CAN bus tester communicates with the nitrogen oxygen sensor through a CAN bus.
5. The apparatus of claim 1, wherein the apparatus comprises: one end of the all-in-one rotary plug is connected with the assembly testing device by adopting a six-pin aerial plug connector, and the other end of the all-in-one rotary plug is connected with various mechanism plug types in parallel and is adapted to different mechanism interfaces.
6. The apparatus of claim 1, wherein the apparatus comprises: sweep a yard rifle and adopt wireless formula separation to sweep a yard rifle.
7. The method of claim 1, wherein the method comprises:
(A) The nitrogen oxygen sensor is connected with the all-in-one plug, a two-dimensional code on a product shell is scanned by using a code scanning gun, and the two-dimensional code contains the model information of the nitrogen oxygen sensor;
(B) According to the model information, the digital adjustable power supply provides power supply with different voltage levels;
(C) The upper computer detects that the voltage is normal, automatically sends a dew point starting instruction of the nitrogen-oxygen sensor, starts to record the ignition time of the nitrogen-oxygen sensor, and judges whether the product is qualified or not together with the detected nitrogen and oxygen concentrations in the air;
(D) And after the product is qualified, a software version information request instruction is automatically sent to ensure that communication protocols of different products are normal, and after the product is detected, the indicator light turns on a green light, so that the product is qualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210942300.6A CN115308373A (en) | 2022-08-08 | 2022-08-08 | Device and method for automatically testing nitrogen-oxygen sensor assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210942300.6A CN115308373A (en) | 2022-08-08 | 2022-08-08 | Device and method for automatically testing nitrogen-oxygen sensor assembly |
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| CN115308373A true CN115308373A (en) | 2022-11-08 |
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| CN202210942300.6A Pending CN115308373A (en) | 2022-08-08 | 2022-08-08 | Device and method for automatically testing nitrogen-oxygen sensor assembly |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070119708A1 (en) * | 2005-11-25 | 2007-05-31 | Ngk Spark Plug Co., Ltd. | Sensor deterioration judging apparatus and sensor deterioration judging method |
| CN107677311A (en) * | 2017-09-25 | 2018-02-09 | 无锡沃尔福汽车技术有限公司 | A kind of nitrogen oxide sensor detection means |
| CN207081704U (en) * | 2017-03-28 | 2018-03-09 | 常州联德电子有限公司 | A kind of nitrogen oxide sensor evaluating system |
| CN108150262A (en) * | 2017-12-22 | 2018-06-12 | 中国第汽车股份有限公司 | Judge the detection method whether nitrogen oxide sensor fails |
| US20210239669A1 (en) * | 2018-02-11 | 2021-08-05 | Changzhou Lambda Electonic., Ltd | Intelligent nitrogen-oxygen sensor and detection method thereof |
-
2022
- 2022-08-08 CN CN202210942300.6A patent/CN115308373A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070119708A1 (en) * | 2005-11-25 | 2007-05-31 | Ngk Spark Plug Co., Ltd. | Sensor deterioration judging apparatus and sensor deterioration judging method |
| CN207081704U (en) * | 2017-03-28 | 2018-03-09 | 常州联德电子有限公司 | A kind of nitrogen oxide sensor evaluating system |
| CN107677311A (en) * | 2017-09-25 | 2018-02-09 | 无锡沃尔福汽车技术有限公司 | A kind of nitrogen oxide sensor detection means |
| CN108150262A (en) * | 2017-12-22 | 2018-06-12 | 中国第汽车股份有限公司 | Judge the detection method whether nitrogen oxide sensor fails |
| US20210239669A1 (en) * | 2018-02-11 | 2021-08-05 | Changzhou Lambda Electonic., Ltd | Intelligent nitrogen-oxygen sensor and detection method thereof |
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