CN207029079U - Onboard diagnostic system - Google Patents
Onboard diagnostic system Download PDFInfo
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- CN207029079U CN207029079U CN201720597055.4U CN201720597055U CN207029079U CN 207029079 U CN207029079 U CN 207029079U CN 201720597055 U CN201720597055 U CN 201720597055U CN 207029079 U CN207029079 U CN 207029079U
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Abstract
The utility model provides a kind of onboard diagnostic system, including：Voltage monitoring module, for when automobile is in flameout state, whether the first voltage of monitoring automobile storage battery output fluctuates, main control module, for when the first voltage fluctuates, judging whether the automobile lights a fire success, output module, for when automotive ignition success, exporting second voltage.The main control module, it is additionally operable to judge whether the automobile stops working, when the automobile flameout, forbids the output module to export the second voltage.Automobile output voltage under flameout state can effectively be avoided using the onboard diagnostic system.
Description
Technical field
It the utility model is related to automobile power supply technique field, more particularly to a kind of onboard diagnostic system.
Background technology
At present, onboard diagnostic system (On-Board Diagnostic, abbreviation OBD) is fitted with most of automobile,
OBD is mainly used in whether monitoring vehicle exhaust at any time according to the operation conditions of engine and the working condition of exhaust gas aftertreatment system
Discharge exceeded, once motor vehicle exhaust emission is exceeded, OBD can send warning at once.
OBD not only has whether monitoring vehicle exhaust discharges exceeded function, because OBD input modules connect automobile power source
Device (i.e. automobile storage battery), therefore its output module also has the function of output voltage.Increasing user vehicle is by automobile
Burglary-resisting installation (such as drive recorder) low-work voltage equipment is connected to OBD output module to be powered.But OBD
Output module is only capable of the continual electricity by automobile storage battery storage and exported, and when automobile is not actuated for a long time, OBD is uninterrupted
Output voltage easily cause the not enough power supply of automobile storage battery, cause automobile burglar equipment can not normal work, or even cause
The electricity of automobile storage battery is zero, causes automobile not start normally, is made troubles to user.
In order to avoid automobile it is not actuated when, the continual output voltages of OBD, in the prior art by using sensor (such as
Voice operated sensor, shock sensor etc.) data that collect judge whether automobile lights a fire success, when it is determined that automotive ignition success
When, OBD starts output voltage, otherwise, OBD not output voltages.But when automobile parking in noise and excitement or frequently occurs the rings of vibrations
When in border, it can cause to judge by accident by the way of sensor so that OBD output voltages under automobile flameout state.
Utility model content
The utility model provides a kind of onboard diagnostic system, can effectively avoid automobile output voltage under flameout state.
The utility model provides a kind of onboard diagnostic system, including：
Voltage monitoring module, the first voltage for when automobile is in flameout state, monitoring automobile storage battery output are
It is no to fluctuate；
Main control module, for when the first voltage fluctuates, judging whether the automobile lights a fire success；
Output module, for when automotive ignition success, exporting second voltage；
The main control module, it is additionally operable to judge whether the automobile stops working, when the automobile flameout, forbids the output
Module exports the second voltage.
Optionally, the voltage monitoring module is specifically used for：
Judge whether the first voltage is less than first voltage threshold value；
When the first voltage is less than the first voltage threshold value, determine that the first voltage fluctuates.
Optionally, when judging whether the automobile lights a fire successfully, the main control module is specifically used for：
Judge in controller local area network's CAN with the presence or absence of the control data of engine；
When the control data of the engine in the CAN be present, the automotive ignition success is determined.
Optionally, when judging whether the automobile is flame-out, the main control module is specifically used for：
After automotive ignition success, the first voltage is obtained from the voltage monitoring module, judges described first
Whether voltage is less than second voltage threshold value；
When the first voltage is less than the second voltage threshold value, judge that the first voltage is less than the second voltage
Whether the first duration of threshold value is more than very first time threshold value；
When the described first electric duration being more than the very first time threshold value, the automobile flameout is determined；
When the first voltage is more than or equal to the second voltage threshold value, judge to whether there is in the CAN
The control data of the engine；
When the control data that the engine is not present in the CAN, then judge institute is not present in the CAN
Whether the second duration for stating the control data of engine is more than the second time threshold；
It is more than second time threshold when second duration, it is determined that the automobile flameout.
Optionally, when judging whether the automobile lights a fire successfully, the main control module is specifically used for：
Judge in controller local area network's CAN with the presence or absence of the control data of engine；
When the control data of the engine is not present in the CAN, institute is obtained from the voltage monitoring module
First voltage is stated, judges whether the first voltage is more than tertiary voltage threshold value；
When the first voltage is more than the tertiary voltage threshold value, judge that the first voltage is more than the tertiary voltage
Whether the 3rd duration of threshold value is more than the 3rd time threshold；
When the 3rd duration being more than three time threshold, the automotive ignition success is determined.
Optionally, when judging whether the automobile is flame-out, the main control module is specifically used for：
After automotive ignition success, judge whether the first voltage is less than second voltage threshold value；
When the first voltage is less than the second voltage threshold value, judge that the first voltage is less than the second voltage
Whether the first duration of threshold value is more than very first time threshold value；
When first duration being more than very first time threshold value, the automobile flameout is determined；
When the first voltage is more than or equal to the second voltage threshold value, judge whether the first voltage is less than the
Four voltage thresholds；
When the first voltage is less than four voltage threshold, judge that the first voltage is less than the 4th voltage
Whether the 4th duration of threshold value is more than the 4th time threshold；
When the 4th duration being more than four time threshold, the automobile flameout is determined.
Optionally, the main control module is main micro-control unit MCU, and the voltage monitoring module is from MCU.
Onboard diagnostic system provided by the utility model, including：Voltage monitoring module, main control module and output module.
Wherein, voltage monitoring module, for when automobile is in flameout state, whether the first voltage of monitoring automobile storage battery output to go out
Now fluctuate.Main control module, for when first voltage fluctuates, judging whether automobile lights a fire success.Output module, it is used for
When automotive ignition success, second voltage is exported.After automotive ignition success, main control module, it is additionally operable to judge whether automobile puts out
Fire, if automobile flameout, output module is forbidden to export second voltage, so as to effectively avoid automobile from exporting electricity under flameout state
Pressure.
Brief description of the drawings
Fig. 1 is a kind of structural representation of onboard diagnostic system provided by the utility model.
Description of reference numerals：
1：Voltage monitoring module；
2：Main control module；
3：Output module.
Embodiment
Fig. 1 is a kind of structural representation of onboard diagnostic system provided by the utility model, as shown in figure 1, the present embodiment
Onboard diagnostic system OBD can include：Voltage monitoring module 1, main control module 2 and output module 3.
Wherein, voltage monitoring module 1, for when automobile is in flameout state, monitoring the first of automobile storage battery output
Whether voltage fluctuates.
Main control module 2, for when first voltage fluctuates, judging whether automobile lights a fire success.
Output module 3, for when automotive ignition success, exporting second voltage.
Main control module 2, it is additionally operable to when automobile judges whether automobile stops working in the state of igniting, work as automobile flameout, prohibits
Only output module 3 exports second voltage.
Specifically, in the case where automobile is in flameout state, OBD is inserted on automobile after default OBD interfaces, OBD and automobile
Battery is connected.Now, automobile storage battery output first voltage, the first voltage of automobile storage battery output is OBD input
Voltage, voltage monitoring module 1 starts to monitor whether first voltage fluctuates after OBD is powered.
Optionally, voltage monitoring module 1 is specifically used for：Judge whether first voltage is less than first voltage threshold value, when first
When voltage is less than first voltage threshold value, determine that first voltage fluctuates.When first voltage is not less than first voltage threshold value, really
Determine first voltage not fluctuate.Wherein, first voltage threshold value could be arranged to 11V (volt).
When automobile is in flameout state, the generator of automobile does not work, and battery will not be charged, first voltage is not
Become.In automotive ignition moment, i.e., when automobile switchs to fired state by flameout state, the electricity between battery and the starter of automobile
Source is connected, and battery starts to power to starter, and the electric energy of acquisition is converted into mechanical energy by starter, so as to drive engine work
Make.The electricity of accumulators store is reduced during battery discharges starter so that first voltage reduces, and causes the first electricity
Pressure is less than first voltage threshold value, and therefore, voltage monitoring module 1 can be by judging whether first voltage fluctuation occurs to determine vapour
Whether car lights a fire.
When voltage monitoring module 1 monitors that first voltage fluctuates, illustrate that automobile starts to light a fire, main control module 2
Determine whether automobile lights a fire success.When first voltage fluctuation does not occur, voltage monitoring module 1 continues the electricity of monitoring first
Whether pressure fluctuates.
According to the mode of intelligence transmission of automobile engine, whether main control module 2 judges automobile using different methods
Light a fire successfully.At present, the mode of intelligence transmission of automobile engine mainly has the following two kinds：
First way：The control information of engine is transmitted by CAN.CAN is a kind of effectively support
Distributed AC servo system or the serial communication network bus controlled in real time.Information transmission is carried out using CAN, can not only reduce vapour
The quantity of data wire on car, simplify vehicle wiring, but also with stronger internet security, communication reliability and in real time
Property, therefore increasingly popularized on automobile by the way of CAN carries out information transmission.
The second way：The control information of engine is transmitted by independent data wire, other data on automobile
It can be transmitted using CAN.
When carrying out information transmission using first way, engine is once lighted a fire success, and the can of main control module 2 exists
The control data that the control module of engine is sent is received in CAN, i.e., the control number that engine in CAN be present
According to.Therefore main control module 2 can be by judging whether determine automobile with the presence or absence of the control data of engine in CAN
Light a fire successfully.Specifically, when judging whether automobile lights a fire successfully, main control module 2 is specifically used for：When existing in CAN
During the control data of engine, automotive ignition success is determined, when the control data of engine is not present in CAN, it is determined that
Automotive ignition fails.
When carrying out information transmission using the second way, because the control module of engine is not attached in CAN,
Therefore main control module 2 does not receive the control data of engine all the time in CAN, and main control module 2 can not be by sentencing
Determine whether automobile lights a fire success with the presence or absence of the control data of engine in disconnected CAN.After automotive ignition success, hair
Motivation drives generator to charge battery so that first voltage increases, therefore main control module 2 can pass through the first electricity
The change of pressure determines whether automobile lights a fire success.When judging whether automobile lights a fire successfully, main control module 2 is specifically used for：
Judge in CAN whether there is engine control data, when in CAN be not present engine control data when, from
Voltage monitoring module 1 obtains first voltage, judges whether first voltage is more than tertiary voltage threshold value, when first voltage is more than the 3rd
During voltage threshold, judge whether first voltage is more than the 3rd time threshold more than the 3rd duration of tertiary voltage threshold value, when
When 3rd duration was more than three time thresholds, automotive ignition success is determined.If first voltage is less than tertiary voltage threshold value,
Main control module 2 determines automotive ignition failure, or, although first voltage is more than tertiary voltage threshold value, first voltage is big
It is less than the 3rd time threshold in the 3rd duration of tertiary voltage threshold value, main control module 2 also can determine whether that automotive ignition fails.
Optionally, the 3rd time threshold could be arranged to 10s (second).When generator is that battery charges, need to provide more than battery
More than quiescent voltage 1V voltage, the quiescent voltage of the battery of common automobile are 12.3V between 12.6V, therefore can will
Tertiary voltage threshold value is arranged to 13.5V.
When main control module 2 determines automotive ignition success, output module 3 exports second voltage.When main control module 2 is true
When determining automotive ignition failure, voltage monitoring module 1 continues to monitor first voltage, waits first voltage next secondary undulation occur.
After automotive ignition success, engine starts normal work, driven by engine generator operation, generator start for
Battery is charged, the electricity increase of battery, and now first voltage is equal to the charging voltage of automobile storage battery, and OBD's is defeated
Go out module 3 to start to export second voltage, the low-work voltage equipment (such as automobile burglar equipment) of connection OBD output modules 3 obtains
Power supply is started working.
After automotive ignition success, main control module 2 is additionally operable to judge whether automobile stops working.
When automobile uses above-mentioned first way transmission information, main control module 2 can be sentenced by following three kinds of modes
Whether car of cutting steam stops working.
The first implementation：When automobile is transformed into flameout state by fired state, engine stop normal work, CAN
The control data of engine in bus disappears.Therefore, main control module 2 is specifically used for：Judge in CAN with the presence or absence of hair
The control data of motivation, when the control data of engine in CAN be present, determine that automobile does not stop working.When in CAN not
When the control data of engine be present, judge in CAN in the absence of engine control data the second duration whether
More than the second time threshold, if the second duration was less than or equal to the second time threshold, determine that automobile does not stop working, otherwise, really
Determine automobile flameout.Wherein, the second time threshold could be arranged to 5s.
In the first implementation, main control module 2 it is determined that in CAN be not present engine control data when,
It is not to immediately determine that automobile is in flameout state, but determines whether that the control data of engine is not present in CAN
The second duration whether be more than the second time threshold because in car running process, the control module of transmitter
The control data of the engine of transmission is not continuous in itself, i.e., may be spaced between the front and rear control data sent twice
Certain time, in this case, automobile be not flame-out, if hair is not present in main control module 2 on CAN is monitored
The control data of motivation just immediately determines that automobile flameout, can cause to judge by accident.In the present embodiment, main control module 2 is in CAN
When whether being more than the second time threshold in the absence of the second duration of the control data of engine, then automobile flameout is determined, from
And automobile flameout can be avoided to judge by accident.
Second of implementation：First voltage is likely to occur under automotive ignition state to decline rapidly so that automobile flameout, because
This, main control module 2 can determine whether automobile stops working by the change of first voltage.Accordingly, main control module 2 is specifically used
In：First voltage is obtained from voltage monitoring module 1, judges whether first voltage is less than default second voltage threshold value, if the
One voltage is less than the second voltage threshold value, judges that first voltage is less than whether the first duration of second voltage threshold value is more than the
One time threshold, when the first duration being more than very first time threshold value, determine automobile flameout.If first voltage is not less than the
Two voltage thresholds, determine that automobile does not stop working, output module 3 persistently exports second voltage.Optionally, second voltage threshold value can be set
11.5V is set to, very first time threshold value could be arranged to 10s.
The third implementation：Main control module 2 is specifically used for：First voltage is obtained from voltage monitoring module 1, judges the
Whether one voltage less than default second voltage threshold value determines whether automobile stops working, when first voltage is less than the second voltage threshold value
When, judge that first voltage is less than whether the first duration of second voltage threshold value is more than very first time threshold value, when first lasting
When time is more than very first time threshold value, automobile flameout is determined.When first voltage is not less than second voltage threshold value, judge that CAN is total
It whether there is the control data of engine on line, when the control data that engine is not present in CAN, then judge CAN
Whether the second duration of the upper control data in the absence of engine is more than the second time threshold, is more than when the second duration
Second time threshold, it is determined that automobile flameout.The first implementation and second of implementation are combined and sentenced by the implementation
Whether car of cutting steam stops working so that judgement of the main control module 2 to automobile flameout is more accurate.
When automobile uses above-mentioned second way transmission information, main control module 2 can be true by following three kinds of modes
Determine whether automobile stops working：
The first implementation：When automobile is transformed into flameout state by fired state, engine stop normal work, start
Machine no longer drives generator to charge battery so that first voltage reduces, and therefore, main control module 2 can be by the
The change of one voltage determines whether automobile stops working.Main control module 2 is specifically used for：First voltage is obtained from voltage monitoring module 1,
Judge whether first voltage is less than the 4th voltage threshold, when first voltage is less than four voltage thresholds, judge that first voltage is small
Whether it is more than the 4th time threshold in the 4th duration of the 4th voltage threshold, is more than the 4th time threshold when the 4th duration
During value, automobile flameout is determined, otherwise, it determines automobile is still fired state.Wherein, the 4th voltage threshold could be arranged to 13.5V,
4th time threshold could be arranged to 60s.
In the first implementation, main control module 2 is not to stand when it is determined that first voltage is less than four voltage thresholds
Determine that automobile is in flameout state, but determine whether that the 4th duration that first voltage is less than the 4th voltage threshold is
No to be more than the 4th time threshold, because in car running process, also other reasonses such as generator speed reduces, meeting
Cause to be less than the 4th voltage threshold in the first voltage short time, now, automobile is not flame-out, if main control module 2 is once
Monitor that first voltage determines that automobile is in flameout state less than the 4th voltage threshold, then can cause to judge by accident, using above-mentioned side
Method can avoid the erroneous judgement of automobile flameout state.
Second of implementation：There is first voltage under fired state and declined rapidly in automobile so that automobile flameout, because
This, main control module 2 can determine whether automobile stops working by the change of first voltage.Main control module 2 is specifically used for：From electricity
Press monitoring modular 1 to obtain first voltage, judge whether first voltage is less than default second voltage threshold value, when first voltage is less than
During the second voltage threshold value, judge whether first voltage is more than very first time threshold less than the first duration of second voltage threshold value
Value, when the first duration being more than very first time threshold value, determines automobile flameout.When first voltage is not less than second voltage threshold value
When, determine that automobile does not stop working, output module 3 persistently exports second voltage.
The third implementation：Main control module 2 is specifically used for：First voltage is obtained from voltage monitoring module 1, judges the
Whether one voltage less than default second voltage threshold value determines whether automobile stops working, when first voltage is less than the second voltage threshold value
When, judge that first voltage is less than whether the first duration of second voltage threshold value is more than very first time threshold value, when first lasting
When time is more than very first time threshold value, automobile flameout is determined.When first voltage is not less than second voltage threshold value, the first electricity is judged
Whether pressure is less than the 4th voltage threshold, when first voltage is less than four voltage thresholds, judges that first voltage is less than the 4th voltage
Whether the 4th duration of threshold value is more than the 4th time threshold, when the 4th duration being more than four time thresholds, it is determined that
Automobile flameout.The first implementation and second of implementation are combined and judge whether automobile stops working in the implementation, is made
It is more accurate to obtain judgement of the main control module 2 to automobile flameout.
When main control module 2 judges that automobile has stopped working, main control module 2 forbids output module 3 to export second voltage.It is no
Then, output module 3 continues to output second voltage.
Optionally, main control module 2 is main MCU, and voltage monitoring module 1 is from MCU.Automobile is under flameout state, from MCU
All the time under super low-power consumption carry out first voltage whether there is the monitoring fluctuated, now, main MCU in a dormant state, without
Any control.When voltage monitoring module 1 monitors that first voltage fluctuates, voltage monitoring module 1 sends wakeup message extremely
Main control module 2, main MCU are waken up, and start to judge whether automobile lights a fire success, and judge whether automobile puts out after lighting a fire successfully
Fire, so as to control whether to export second voltage.It is middle compared with prior art to be using an at most MCU control sensor progress automobile
No igniting successful judgment mode is more accurate using main MCU and the control mode from MCU in the present embodiment so that OBD only has
Second voltage is exported in the state of automotive ignition.
The onboard diagnostic system of the offer of the present embodiment, including：Voltage monitoring module, main control module and output module.
Wherein, voltage monitoring module, for when automobile is in flameout state, whether the first voltage of monitoring automobile storage battery output to go out
Now fluctuate.Main control module, for when first voltage fluctuates, judging whether automobile lights a fire success.Output module, it is used for
When automotive ignition success, second voltage is exported.After automotive ignition success, main control module, it is additionally operable to judge whether automobile puts out
Fire, if automobile flameout, output module is forbidden to export second voltage, so as to effectively avoid automobile from exporting electricity under flameout state
Pressure.
Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, either to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type.
Claims (7)
- A kind of 1. onboard diagnostic system OBD, it is characterised in that including：Voltage monitoring module, for when automobile is in flameout state, whether the first voltage of monitoring automobile storage battery output to go out Now fluctuate；Main control module, for when the first voltage fluctuates, judging whether the automobile lights a fire success；Output module, for when automotive ignition success, exporting second voltage；The main control module, it is additionally operable to judge whether the automobile stops working, when the automobile flameout, forbids the output module Export the second voltage.
- 2. OBD according to claim 1, it is characterised in that the voltage monitoring module is specifically used for：Judge whether the first voltage is less than first voltage threshold value；When the first voltage is less than the first voltage threshold value, determine that the first voltage fluctuates.
- 3. OBD according to claim 1 or 2, it is characterised in that described when judging whether the automobile lights a fire successfully Main control module is specifically used for：Judge in controller local area network's CAN with the presence or absence of the control data of engine；When the control data of the engine in the CAN be present, the automotive ignition success is determined.
- 4. OBD according to claim 3, it is characterised in that when judging whether the automobile is flame-out, the master control molding Block is specifically used for：After automotive ignition success, the first voltage is obtained from the voltage monitoring module, judges the first voltage Whether second voltage threshold value is less than；When the first voltage is less than the second voltage threshold value, judge that the first voltage is less than the second voltage threshold value The first duration whether be more than very first time threshold value；When first duration being more than the very first time threshold value, the automobile flameout is determined；When the first voltage is more than or equal to the second voltage threshold value, judge in the CAN with the presence or absence of described The control data of engine；When the control data that the engine is not present in the CAN, then judge the hair is not present in the CAN Whether the second duration of the control data of motivation is more than the second time threshold；It is more than second time threshold when second duration, it is determined that the automobile flameout.
- 5. OBD according to claim 1 or 2, it is characterised in that described when judging whether the automobile lights a fire successfully Main control module is specifically used for：Judge in controller local area network's CAN with the presence or absence of the control data of engine；When the control data of the engine is not present in the CAN, described the is obtained from the voltage monitoring module One voltage, judges whether the first voltage is more than tertiary voltage threshold value；When the first voltage is more than the tertiary voltage threshold value, judge that the first voltage is more than the tertiary voltage threshold value The 3rd duration whether be more than the 3rd time threshold；When the 3rd duration being more than three time threshold, the automotive ignition success is determined.
- 6. OBD according to claim 5, it is characterised in that when judging whether the automobile is flame-out, the master control molding Block is specifically used for：After automotive ignition success, judge whether the first voltage is less than second voltage threshold value；When the first voltage is less than the second voltage threshold value, judge that the first voltage is less than the second voltage threshold value The first duration whether be more than very first time threshold value；When first duration being more than the very first time threshold value, the automobile flameout is determined；When the first voltage is more than or equal to the second voltage threshold value, judge whether the first voltage is less than the 4th electricity Press threshold value；When the first voltage is less than four voltage threshold, judge that the first voltage is less than the 4th voltage threshold The 4th duration whether be more than the 4th time threshold；When the 4th duration being more than four time threshold, the automobile flameout is determined.
- 7. OBD according to claim 1, it is characterised in that the main control module is main micro-control unit MCU, described Voltage monitoring module is from MCU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720597055.4U CN207029079U (en) | 2017-05-25 | 2017-05-25 | Onboard diagnostic system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720597055.4U CN207029079U (en) | 2017-05-25 | 2017-05-25 | Onboard diagnostic system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111929600A (en) * | 2020-08-10 | 2020-11-13 | 吉利汽车研究院（宁波）有限公司 | Storage battery diagnosis monitoring method, monitoring system, vehicle and Internet of vehicles cloud platform |
| CN113320398A (en) * | 2021-03-26 | 2021-08-31 | 联合汽车电子有限公司 | Method, module and system for protecting driving motor under finished automobile flameout condition |
-
2017
- 2017-05-25 CN CN201720597055.4U patent/CN207029079U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111929600A (en) * | 2020-08-10 | 2020-11-13 | 吉利汽车研究院（宁波）有限公司 | Storage battery diagnosis monitoring method, monitoring system, vehicle and Internet of vehicles cloud platform |
| CN111929600B (en) * | 2020-08-10 | 2023-09-08 | 吉利汽车研究院（宁波）有限公司 | Storage battery diagnosis monitoring method, monitoring system, vehicle and vehicle networking cloud platform |
| CN113320398A (en) * | 2021-03-26 | 2021-08-31 | 联合汽车电子有限公司 | Method, module and system for protecting driving motor under finished automobile flameout condition |
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Address after: 101300 room 015, building 8, No. 1, Linkong Second Road, Shunyi Park, Zhongguancun Science and Technology Park, Shunyi District, Beijing Patentee after: BEIJING JULI TECHNOLOGY Co.,Ltd. Address before: 102206, B, 504, Xinyuan Science Park, 97 Changping Road, Beijing, Changping District Patentee before: BEIJING JULI SCIENCE & TECHNOLOGY Co.,Ltd. |
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