CN107677311A - A kind of nitrogen oxide sensor detection means - Google Patents
A kind of nitrogen oxide sensor detection means Download PDFInfo
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- CN107677311A CN107677311A CN201710872403.9A CN201710872403A CN107677311A CN 107677311 A CN107677311 A CN 107677311A CN 201710872403 A CN201710872403 A CN 201710872403A CN 107677311 A CN107677311 A CN 107677311A
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- nitrogen oxide
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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Abstract
The present invention discloses a kind of nitrogen oxide sensor detection means, including detection means shell, sensor banjo, master control borad, adjustable decompression board and voltage Anti reverse module；Control button, display screen connection master control borad；One end connection master control borad of the sensor banjo, the other end connect the data output end of nitrogen oxide sensor to be measured or the data-interface of OBD, and the OBD connects with nitrogen oxide sensor to be measured communication；One end connection master control borad of the adjustable electric pressing plate, the power end of other end connection nitrogen oxide sensor, one end of voltage Anti reverse module, the other end connection supply terminals of the voltage Anti reverse module.The present invention is capable of the status information of visual display nitrogen oxide sensor, completes fault detect, requires low to the professional knowledge of staff, simplifies method of testing, improve testing efficiency.
Description
Technical field
The present invention relates to nitrogen oxide sensor detection technique field, more particularly to a kind of nitrogen oxide sensor detection means.
Background technology
Country is increasingly strict for emission of diesel engine regulation at present, the nitrogen oxygen sensing that state four, the vehicle of state five are almost equipped with
Device, associated failure emerge in an endless stream.Because nitrogen oxide sensor is different from common resistance, hall sensor, inside it
Integrated CAN communication module, measured value are sent in the form of CAN-message, and service station, the staff of maintenance factory have not received specially
The training of door, is also ignorant to nitrogen oxide sensor failure, is at a loss.Nitrogen oxide sensor inspection needs certain professional knowledge people
Member, or testboard costly, test equipment, conventional method of testing is cumbersome, such as：Build test table,
Not only need to consume the plenty of time, and the access of big quantity sensor can just make ECU driving nitrogen oxide sensor work.Traditional nitrogen
Lambda sensor detection scheme mainly still uses separate diagnostic instrument read failure code, but there are the following problems：It is first, expensive,
Such as ten thousand yuan of Bosch K series latest editions close prices；2nd, DTC lexical or textual analysis is general, can identify failure and nitrogen oxide sensor
Module is related, or miscellaneous part failure result in the failure (related failure) of nitrogen oxide sensor module, and specific trouble point is still
Voluntarily to investigate；3rd, failure, the diagnostic equipments such as wiring open circuit abnormal electrical power supply be able to not will connect；4th, it is only capable of carrying out on vehicle
Test.If situation, it is necessary to many preparations such as vehicle harness, ECU, simulator, and is deposited more on wiring simulation vehicle on testboard
Judge in other fault impacts；5th, compatibility issue.With domestic increasing vehicle, different brands controller is carried, is made
Into can not diagnose or incompatible, for example, the INSITE diagnosis of comingses and Bosch KT series, and various domestic brands it is not simultaneous
The situation of appearance.Every kind of diagnostic equipment, which is all bought, is not obviously inconsistent reality.
The content of the invention
It is an object of the invention to by a kind of nitrogen oxide sensor detection means, mentioned to solve background section above
The problem of.
To use following technical scheme up to this purpose, the present invention：
A kind of nitrogen oxide sensor detection means, it includes detection means shell, sensor banjo, master control borad, adjustable
Decompression board and voltage Anti reverse module；The control button, display screen connect the master control borad；The sensor banjo
One end connects the master control borad, and the other end connects the data output end of nitrogen oxide sensor to be measured or the number of OBD
According to interface, the OBD connects with nitrogen oxide sensor to be measured communication；One end connection of the adjustable electric pressing plate
The master control borad, the other end connect the power end of the nitrogen oxide sensor, one end of the voltage Anti reverse module, the voltage
The other end connection supply terminals of Anti reverse module；Wherein, the master control borad is specifically used for：First, control display screen is shown out
Machine interface；2nd, detect whether to receive the message of the nitrogen oxide sensor, if not receiving, control display screen shows the nitrogen oxygen
There is hardware connecting fault in sensor, if receiving, record the accumulation power-on time of the nitrogen oxide sensor；3rd, nitrogen oxygen is sent
Working sensor order, the supply voltage of nitrogen oxide sensor is detected whether in setting range, if it is not, then control display screen is shown
Magnitude of voltage mistake, if so, then whether detection nitrogen oxide sensor heats completion；If the 4, nitrogen oxide sensor heating does not complete, control
Display screen shows that nitrogen oxide sensor heats；If the 5, nitrogen oxide sensor heating is completed, whether detection signal can be made
With if it is not, then showing that detection signal is not ready, if so, then control display screen is shown：Voltage is normal, and heating is completed, and signal is
Output, and the accumulation usage time of nitrogen oxide sensor；6th, stop sending nitrogen oxide sensor work order；7th, definition signal is judged
It whether there is, if it is not, then control display screen shows that signal is unknown, if so, then display signal value.
Especially, the master control borad connects host computer by serial communication interface.
Especially, the adjustable decompression board includes diode D1, wave filter U1, electrochemical capacitor C1, electrochemical capacitor C2, electrolysis
Electric capacity C3, voltage-releasing voltage stabilizer U2, diode D2, inductance L1, resistance R1, resistance R2, electric capacity C4, electrochemical capacitor C5, electrochemical capacitor
C6, electric capacity C7 and electrochemical capacitor C8；The positive pole of the anode connection supply terminals of the diode D1, the negative pole of supply terminals
GND connection wave filters U1；The negative electrode connection wave filter U1 of the diode D1；The electrochemical capacitor C1, electrochemical capacitor C2, electrolysis
Electric capacity C3 simultaneously connects latter end ground connection, another termination voltage-releasing voltage stabilizer U2 input pin, wave filter U1, wave filter U1 one end,
Voltage-releasing voltage stabilizer U2 grounding pin ground connection；The output pin connection diode D2 of voltage-releasing voltage stabilizer U2 negative electrode, inductance
L1 one end, inductance L1 the other end connection feeder ear, resistance R1, electric capacity C4, electrochemical capacitor C5, electrochemical capacitor C6, electric capacity C7,
Electrochemical capacitor C8 one end, the resistance R1 other end connection electric capacity C4 other end, resistance R2 one end, voltage-releasing voltage stabilizer U2,
Electrochemical capacitor C5, electrochemical capacitor C6, electric capacity C7, electrochemical capacitor C8 the other end and resistance R2 the other end, diode D2 sun
Pole connects.
Especially, the voltage-releasing voltage stabilizer U2 selects LM2596S-ADJ voltage-releasing voltage stabilizers, by the 10V- of supply terminals
28V supply voltage is converted to 5V supply voltages.
Especially, the voltage Anti reverse module includes fuse F1 and diode D3；A termination of the fuse F1
Adjustable decompression board, other end connection diode D3 negative electrode, the positive pole of diode D3 anode connection supply terminals, it can downgrade
Pressing plate connects the negative pole of supply terminals.
Especially, the master control borad is additionally operable to control display screen and shows information of vehicles.
Especially, the information of vehicles includes but is not limited to speed, fuel oil consumption, moment of torsion, rotating speed, throttle, water temperature, environment temperature
Degree, atmospheric pressure, urea consumption, urea, exhaust temperature, dew point information.
Especially, the master control borad uses STM32F103VET6 development boards；The display screen uses LCDs.
Especially, the detection means shell uses aluminium shell.
Especially, the host computer is selected but is not limited to computer, flat board and smart mobile phone.
Nitrogen oxide sensor detection means proposed by the present invention can pass through the visual display nitrogen oxide sensor of display screen
Status information, low is required to the professional knowledge of staff, common staff can just enter to nitrogen oxide sensor easily and fast
Row malfunction elimination, testing efficiency is high, simplifies method of testing, shortens the testing time.The present invention is simple in construction, and cost is low, body
Product is small, portable easy-to-use, and aluminium shell waterproof, antidetonation, can be electromagnetically shielded, have high stability and reliability, suitably push away
Wide application.The present invention individually detects to the nitrogen oxide sensor unloaded, the type no requirement (NR) to onboard system, suitable for all
The vehicle inspection of vehicle, be also suitable with the quick high-volume quality inspection of dealer, the rapid quality of manufacturing company, compatibility is strong, so
One, invention also overcomes the strategy for when being measured on vehicle, having delay to wait in controller, causes to wait the testing time
The problem of long, for example, prevent condensed water in blast pipe being present, save vehicle power, wait Vehicular exhaust temperature to reach a certain
Value, then start to measure, the stand-by period is longer.The present invention can realize renovation part inspection, because implementing till now from state four, market
In the presence of a large amount of renovation parts, life-span and precision are had a greatly reduced quality, and this product can recognize that the accumulated time used so as to identify renovation part.
The present invention can show signal output to host computer by serial communication interface that providing secondary development for numerous scientific research personnel connects
Mouthful.The present invention sensor that can arrange in pairs or groups realizes the quick detection of tail gas value.Whether vehicle discharge on the market is exceeded, can pass through this
The method of invention+nitrogen oxide sensor is quickly tested, if nitrous oxides concentration is substantially exceeded, need to be carried out reply in advance and be arranged
Apply.The present invention, which realizes power supply, prevents reversal connection function, is applicable 24V or 12V vehicles.
Brief description of the drawings
Fig. 1 is nitrogen oxide sensor detection means positive structure diagram provided in an embodiment of the present invention；
Fig. 2 is nitrogen oxide sensor structure of the detecting device block diagram provided in an embodiment of the present invention；
Fig. 3 is the circuit structure diagram of adjustable decompression board provided in an embodiment of the present invention；
Fig. 4 is nitrogen oxide sensor detection means workflow diagram provided in an embodiment of the present invention.
Embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In accompanying drawing
Give presently preferred embodiments of the present invention.But the present invention can realize in many different forms, however it is not limited to this paper institutes
The embodiment of description.On the contrary, the purpose for providing these embodiments is made to the more thorough of the disclosure understanding
Comprehensively.It should be noted that when an element is considered as " connection " another element, it can be directly to another
Element may be simultaneously present centering elements.Unless otherwise defined, all of technologies and scientific terms used here by the article with
The implication that the those skilled in the art for belonging to of the invention are generally understood that is identical.Made in the description of the invention herein
Term is intended merely to describe the purpose of specific embodiment, it is not intended that in the limitation present invention.Term as used herein
" and/or " include the arbitrary and all combinations of one or more related Listed Items.
It refer to shown in Fig. 1 and Fig. 2, nitrogen oxide sensor detection means specifically includes detection means shell in the present embodiment
101st, sensor banjo (not shown), master control borad 106, adjustable decompression board 107 and voltage Anti reverse module 108.Institute
State and control button and display screen 102 are provided with detection means shell 101.The control button includes power supply in the present embodiment
Button 103, homepage button 104 and nextpage button 105.The control button, display screen 102 connect the master control borad 106.It is described
One end of sensor banjo connects the CAN communication mouth of the master control borad 106, and the other end connects nitrogen oxide sensor 109 to be measured
Data output end or OBD data-interface, the OBD and nitrogen oxide sensor to be measured
109 communication connections；One end of the adjustable electric pressing plate connects the master control borad, and the other end connects the nitrogen oxide sensor 109
One end of power end, the voltage Anti reverse module 108, the other end connection power supply wiring of the voltage Anti reverse module 108
End.
The detection means shell 101 uses aluminium shell in the present embodiment, waterproof, antidetonation, can be electromagnetically shielded, tool
There are high stability and reliability.The master control borad 106 connects host computer 110 by serial communication interface, in the present embodiment
The serial communication interface uses RS232 interface.The host computer 110 can be selected but be not limited to computer, flat board and smart mobile phone.
The master control borad 106 small power consumption, stable performance, is reduced certainly using STM32F103VET6 development boards (integrated TJA1050 modules)
Row designs and produces plate circuit expense.The display screen 102 uses LCD12864 LCDs.
As shown in figure 3, adjustable decompression board 107 described in the present embodiment includes diode D1, wave filter U1, electrochemical capacitor
C1, electrochemical capacitor C2, electrochemical capacitor C3, voltage-releasing voltage stabilizer U2, diode D2, inductance L1, resistance R1, resistance R2, electric capacity C4, electricity
Solve electric capacity C5, electrochemical capacitor C6, electric capacity C7 and electrochemical capacitor C8；The anode connection supply terminals of the diode D1 is just
Pole, the negative pole GND connection wave filters U1 of supply terminals；The negative electrode connection wave filter U1 of the diode D1；The electrolysis electricity
Hold C1, electrochemical capacitor C2, electrochemical capacitor C3 and connect latter end ground connection, another termination voltage-releasing voltage stabilizer U2 input pin, filtering
Device U1, wave filter U1 one end, voltage-releasing voltage stabilizer U2 grounding pin ground connection；The output pin connection of the voltage-releasing voltage stabilizer U2
Diode D2 negative electrode, inductance L1 one end, inductance L1 other end connection feeder ear, resistance R1, electric capacity C4, electrochemical capacitor
C5, electrochemical capacitor C6, electric capacity C7, electrochemical capacitor C8 one end, the resistance R1 other end connection electric capacity C4 other end, resistance R2
One end, voltage-releasing voltage stabilizer U2, electrochemical capacitor C5, electrochemical capacitor C6, electric capacity C7, electrochemical capacitor the C8 other end and resistance R2
The anode connection of the other end, diode D2.The adjustable decompression board 107 is simple in construction, and cost is low, stable and reliable in work, decompression
Voltage-stablizer U2 selects LM2596S-ADJ voltage-releasing voltage stabilizers, by the 10V-28V (being commonly used for 24V/12V) of supply terminals power supply
Voltage conversion is 5V supply voltages.The voltage Anti reverse module 108 includes fuse F1 and diode D3 in the present embodiment；
An adjustable decompression board 107 of termination of the fuse F1, other end connection diode D3 negative electrode, diode D3 anode connection
The positive pole of supply terminals, adjustable decompression board 107 connect the negative pole of supply terminals.It is aobvious that the master control borad 106 is additionally operable to control
Display screen 102 shows information of vehicles.The information of vehicles include but is not limited to speed, fuel oil consumption, moment of torsion, rotating speed, throttle, water temperature,
Environment temperature, atmospheric pressure, urea consumption, urea, exhaust temperature, dew point information.
As shown in figure 4, during work, the master control borad 106 is specifically used for：First, control test starts, and display screen 102 is shown
Starting-up interface；2nd, detect whether to receive the message of the nitrogen oxide sensor 109, if not receiving, control display screen 102 is shown
There is hardware connecting fault in the nitrogen oxide sensor 109, if receiving, when recording the accumulation power supply of the nitrogen oxide sensor 109
Between；3rd, the work order of nitrogen oxide sensor 109 is sent, detects the supply voltage of nitrogen oxide sensor 109 whether in setting range,
If it is not, then control display screen 102 shows magnitude of voltage mistake, if so, then whether detection nitrogen oxide sensor 109 heats completion；If the 4th,
The heating of nitrogen oxide sensor 109 does not complete, then control display screen 102 shows that nitrogen oxide sensor 109 heats；The 5th, if nitrogen oxygen passes
The heating of sensor 109 is completed, then whether detection signal can be used, if it is not, then showing that detection signal is not ready, if so, then controlling
Display screen 102 processed is shown：Voltage is normal, and heating is completed, and signal exports, and the accumulation usage time of nitrogen oxide sensor 109；
6th, stop sending the work order of nitrogen oxide sensor 109；7th, judge that definition signal whether there is, if it is not, then control display screen 102
Show that signal is unknown, if so, then display signal value.
Upper table show nitrogen oxide sensor therefore common fault category and failure-description corresponding table.
Technical scheme proposed by the present invention can be believed by the state of the display nitrogen oxide sensor of display screen compact visual
Breath, low is required to the professional knowledge of staff, common staff just can carry out failure to nitrogen oxide sensor easily and fast
Investigation, testing efficiency is high, simplifies method of testing, shortens the testing time.The present invention is simple in construction, and cost is low, small volume, chi
Very little 150 × 88 × 38mm, it is portable easy-to-use, and aluminium shell waterproof, it antidetonation, can be electromagnetically shielded, there is high stability and can
By property, suitable popularization and application.The present invention individually detects to the nitrogen oxide sensor that unloads, to the type of onboard system without will
Ask, suitable for the vehicle inspection of all vehicles, be also suitable with the quick high-volume quality inspection of dealer, the rapid quality of manufacturing company,
It is compatible strong, so, invention also overcomes the strategy for when being measured on vehicle, thering is delay to wait in controller, lead
The problem of causing to wait the testing time long, for example, prevents condensed water in blast pipe being present, saves vehicle power, waits Vehicular exhaust
Temperature reaches a certain value, then starts to measure, and the stand-by period is longer.The present invention can realize renovation part inspection, because implementing from state 4
Till now, there are a large amount of renovation parts in market, and life-span and precision are had a greatly reduced quality, the recognizable accumulated time used of this product so as to
Identification renovation part.The present invention can be shown signal output to host computer by serial communication interface, be provided for numerous scientific research personnel
Second development interface.The present invention sensor that can arrange in pairs or groups realizes the quick detection of tail gas value.Whether vehicle discharge on the market is exceeded,
It can quickly be tested by the method for the present invention+nitrogen oxide sensor, if nitrous oxides concentration is substantially exceeded, need to be done in advance
Good counter-measure.The present invention, which realizes power supply, prevents reversal connection function, is applicable 24V or 12V vehicles.Present invention addition vent gas treatment mould
Block partial parameters are shown.Vehicle with nitrogen oxide sensor is largely the SCR technology of the urea injection used, and the present invention is based on
J1939-71 is additional to be with the addition of part signal and show, and part signal may be self-defined and different due to different manufacturers, it is only necessary to simple
Single modification.Meter panel of motor vehicle prompting OBD tail gas trouble lights are bright, or the exceeded failure Chinese character description of discharge, or P codes 0422,
0423,042F, SPN code 3226, comingses code 2772,2773, it is identified as tail gas nitrogen oxygen dependent failure.As diagnostic equipment detection one
Sample, these are only capable of indicating that failure is relevant with nitrogen oxygen, and specific failure needs artificial investigation, and the present invention can draw nitrogen oxide sensor rapidly
Normal conclusion, reduce workload, then go to detect that bottom is wire harness reason, or controller (ECU/DCU/SCU) failure is not sent out
" work order of nitrogen oxygen " is sent, also or other reasonses.
It is to pass through one of ordinary skill in the art will appreciate that realizing all or part of flow in above-described embodiment
Computer program instructs the hardware of correlation to complete, and described program can be stored in a computer read/write memory medium,
The program is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, described storage medium can be magnetic disc,
CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
Pay attention to, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious changes,
Readjust and substitute without departing from protection scope of the present invention.Therefore, although being carried out by above example to the present invention
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
Other more equivalent embodiments can be included, and the scope of the present invention is determined by scope of the appended claims.
Claims (10)
1. a kind of nitrogen oxide sensor detection means, it is characterised in that including detection means shell, sensor banjo, master control
Plate, adjustable decompression board and voltage Anti reverse module；The control button, display screen connect the master control borad；The sensor pair
One end of plug connects the master control borad, and the other end connects the data output end or mounted automatic diagnosis of nitrogen oxide sensor to be measured
The data-interface of system, the OBD connect with nitrogen oxide sensor to be measured communication；The adjustable electric pressing plate
One end connects the master control borad, and the other end connects the power end of the nitrogen oxide sensor, one end of the voltage Anti reverse module,
The other end connection supply terminals of the voltage Anti reverse module；Wherein, the master control borad is specifically used for：First, control display
Screen shows starting-up interface；2nd, detect whether to receive the message of the nitrogen oxide sensor, if not receiving, control display screen is shown
There is hardware connecting fault in the nitrogen oxide sensor, if receiving, record the accumulation power-on time of the nitrogen oxide sensor；3rd,
Nitrogen oxide sensor work order is sent, detects the supply voltage of nitrogen oxide sensor whether in setting range, if it is not, then control is aobvious
Display screen shows magnitude of voltage mistake, if so, then whether detection nitrogen oxide sensor heats completion；The 4th, if nitrogen oxide sensor heating is not complete
Into then control display screen shows that nitrogen oxide sensor heats；If the 5, nitrogen oxide sensor heating is completed, whether detection signal
It can be used, if it is not, then showing that detection signal is not ready, if so, then control display screen is shown：Voltage is normal, and heating is completed,
Signal exports, and the accumulation usage time of nitrogen oxide sensor；6th, stop sending nitrogen oxide sensor work order；7th, judge
Definition signal whether there is, if it is not, then control display screen shows that signal is unknown, if so, then display signal value.
2. nitrogen oxide sensor detection means according to claim 1, it is characterised in that the master control borad passes through serial communication
Interface connects host computer.
3. nitrogen oxide sensor detection means according to claim 1, it is characterised in that the adjustable decompression board includes two poles
Pipe D1, wave filter U1, electrochemical capacitor C1, electrochemical capacitor C2, electrochemical capacitor C3, voltage-releasing voltage stabilizer U2, diode D2, inductance L1,
Resistance R1, resistance R2, electric capacity C4, electrochemical capacitor C5, electrochemical capacitor C6, electric capacity C7 and electrochemical capacitor C8；The diode D1's
Anode connects the positive pole of supply terminals, the negative pole GND connection wave filters U1 of supply terminals；The negative electrode of the diode D1 connects
Meet wave filter U1；The electrochemical capacitor C1, electrochemical capacitor C2, electrochemical capacitor C3 simultaneously connect latter end ground connection, and another termination decompression is steady
Depressor U2 input pin, wave filter U1, wave filter U1 one end, voltage-releasing voltage stabilizer U2 grounding pin ground connection；The decompression
Voltage-stablizer U2 output pin connection diode D2 negative electrode, inductance L1 one end, inductance L1 other end connection feeder ear, electricity
Hinder R1, electric capacity C4, electrochemical capacitor C5, electrochemical capacitor C6, electric capacity C7, electrochemical capacitor C8 one end, resistance R1 other end connection
The electric capacity C4 other end, resistance R2 one end, voltage-releasing voltage stabilizer U2, electrochemical capacitor C5, electrochemical capacitor C6, electric capacity C7, electrolysis electricity
The other end for holding C8 is connected with the resistance R2 other end, diode D2 anode.
4. nitrogen oxide sensor detection means according to claim 2, it is characterised in that the voltage-releasing voltage stabilizer U2 is selected
LM2596S-ADJ voltage-releasing voltage stabilizers, the 10V-28V of supply terminals supply voltage is converted into 5V supply voltages.
5. nitrogen oxide sensor detection means according to claim 1, it is characterised in that the voltage Anti reverse module includes
Fuse F1 and diode D3；An adjustable decompression board of termination of the fuse F1, other end connection diode D3 negative electrode, two
The positive pole of pole pipe D3 anode connection supply terminals, the negative pole of adjustable decompression board connection supply terminals.
6. nitrogen oxide sensor detection means according to claim 1, it is characterised in that it is aobvious that the master control borad is additionally operable to control
Display screen shows information of vehicles.
7. nitrogen oxide sensor detection means according to claim 6, it is characterised in that the information of vehicles includes but unlimited
In speed, fuel oil consumption, moment of torsion, rotating speed, throttle, water temperature, environment temperature, atmospheric pressure, urea consumption, urea, exhaust temperature, dew point
Information.
8. nitrogen oxide sensor detection means according to claim 1, it is characterised in that the master control borad uses
STM32F103VET6 development boards；The display screen uses LCDs.
9. the nitrogen oxide sensor detection means according to one of claim 1 to 8, it is characterised in that outside the detection means
Shell uses aluminium shell.
10. nitrogen oxide sensor detection means according to claim 2, it is characterised in that the host computer is selected but unlimited
In computer, flat board and smart mobile phone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710872403.9A CN107677311B (en) | 2017-09-25 | 2017-09-25 | Nitrogen oxygen sensor detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710872403.9A CN107677311B (en) | 2017-09-25 | 2017-09-25 | Nitrogen oxygen sensor detection device |
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| CN107677311B CN107677311B (en) | 2020-04-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115308373A (en) * | 2022-08-08 | 2022-11-08 | 徐州芯源诚达传感科技有限公司 | Device and method for automatically testing nitrogen-oxygen sensor assembly |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115308373A (en) * | 2022-08-08 | 2022-11-08 | 徐州芯源诚达传感科技有限公司 | Device and method for automatically testing nitrogen-oxygen sensor assembly |
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| CN107677311B (en) | 2020-04-17 |
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