CN104596616A - Water level detecting device and method - Google Patents
Water level detecting device and method Download PDFInfo
- Publication number
- CN104596616A CN104596616A CN201410838740.2A CN201410838740A CN104596616A CN 104596616 A CN104596616 A CN 104596616A CN 201410838740 A CN201410838740 A CN 201410838740A CN 104596616 A CN104596616 A CN 104596616A
- Authority
- CN
- China
- Prior art keywords
- depth
- water
- capacitance
- parallel capacitor
- plane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The invention discloses a water level detecting device and method. The water level detecting device is arranged at an automobile head, two electrodes form a parallel plate capacitor, the capacitance value between the parallel plate capacitors is in linear change along with different water levels between the capacitors, the capacitance when the gap between the parallel plate capacitors is fully filled with water, the capacitance when the gap between the parallel plate capacitors is filled with no water and the maximum water depth are known, the water depth between the parallel plate capacitors is calculated according to the measured capacitance values of the parallel plate capacitors, the known capacitance, the greatest water depth and the preset relationship, the water depth of accumulated water can be precisely detected when an automobile is in wading running, and the automobile fault is avoided.
Description
Technical field
The present invention relates to level sensor field, particularly relate to a kind of condensate tank of dehumidifier and method.
Background technology
The appearance of rainstorm weather, can make large-area road surface form ponding or be submerged, and vehicle situation about travelling of paddling happens occasionally.
Automobile driver is when running into ponding road surface, usually rule of thumb keep low speed driving on ponding road surface, but when depth of accumulated water exceedes to a certain degree, vehicle is paddled when travelling and cannot be detected the depth of water, motor car engine may be caused to intake, even car load water inlet, causes vehicle to stop working, casts anchor.
Summary of the invention
In view of this, fundamental purpose of the present invention is to provide a kind of condensate tank of dehumidifier and method, can detect the depth of water that vehicle is paddled when travelling exactly.
For achieving the above object, the invention provides a kind of condensate tank of dehumidifier, be installed on automobile head, described device comprises:
First electrode, the second electrode, analog to digital converter and the first depth of water computing module;
Described first electrode and described second electrode form plane-parallel capacitor, capacitance between described plane-parallel capacitor and the depth of water are preset relation, capacitance time anhydrous between described plane-parallel capacitor is the first capacitance, capacitance when being full of water between described plane-parallel capacitor is the second capacitance, and between described plane-parallel capacitor, maximum water depth is first degree of depth;
Described analog to digital converter is for measuring the capacitance of described plane-parallel capacitor;
Described first depth of water computing module is for calculating the depth of water second degree of depth between described plane-parallel capacitor according to the capacitance between described first capacitance, the second capacitance, first degree of depth, described plane-parallel capacitor and described preset relation.
Preferably, described condensate tank of dehumidifier also comprises:
Exciting signal source and clock generator;
Described exciting signal source is used for making described first electrode and the second electrode form plane-parallel capacitor to described first electrode emission pumping signal;
Described clock generator is used for providing clock signal to described exciting signal source, described analog to digital converter and described first depth of water computing module, coordinates the frequency of operation of described exciting signal source, described analog to digital converter and described first depth of water computing module according to described clock signal.
Preferably, described first electrode and described second electrode are measure-alike strip shaped electric poles, and with car floor at right angle setting.
Preferably, described first degree of depth is the length of described first electrode.
Preferably, described condensate tank of dehumidifier also comprises the second depth of water computing module, and described plane-parallel capacitor is the first height apart from floor level, and described second depth of water computing module is used for highly obtaining the actual depth of water according to described second depth of water and described first.
Preferably, described condensate tank of dehumidifier also comprises judge module, for judging whether the described actual depth of water is greater than the presetting alarm threshold value degree of depth.
Preferably, described condensate tank of dehumidifier also comprises output module, for the described actual depth of water being exported.
Preferably, described condensate tank of dehumidifier also comprises alarm module, for reporting to the police when the described actual depth of water is greater than the alarm threshold value degree of depth.
Present invention also offers a kind of level testing methods, it is characterized in that, for described condensate tank of dehumidifier, described method comprises:
Measure the capacitance of the plane-parallel capacitor that described first electrode and described second electrode form;
The depth of water second degree of depth between described plane-parallel capacitor is calculated according to the capacitance between described first capacitance, the second capacitance, first degree of depth, described plane-parallel capacitor and described preset relation.
Preferably, also comprise after calculating between described plane-parallel capacitor the depth of water second degree of depth according to described first capacitance, the second capacitance, capacitance between first degree of depth and described plane-parallel capacitor:
The actual depth of water is highly obtained according to described second depth of water and described first.
Preferably, also comprise after highly obtaining the actual depth of water according to described second depth of water and described first:
The described actual depth of water is exported.
Preferably, also comprise after highly obtaining the actual depth of water according to described second depth of water and described first:
Judge whether the described actual depth of water is greater than the presetting alarm threshold value degree of depth, report to the police when the described actual depth of water is greater than the alarm threshold value degree of depth.
Apply condensate tank of dehumidifier provided by the invention and method, described device is installed on automobile head, two electrodes form plane-parallel capacitor, capacitance between described plane-parallel capacitor linearly changes with the difference of water level between capacitor, be full of water between described plane-parallel capacitor and anhydrous time electric capacity and maximum water depth known, according to capacitance and the known electric capacity of the described plane-parallel capacitor measured, maximum water depth and preset relation calculate the depth of water between described plane-parallel capacitor, can accurately detect the ponding depth of water when automobile wading travels to avoid causing vehicle trouble.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Fig. 1 is the structural representation of a kind of condensate tank of dehumidifier of the present invention;
Fig. 2 is the another structural representation of a kind of condensate tank of dehumidifier of the present invention;
Fig. 3 is the concrete structure schematic diagram of a kind of condensate tank of dehumidifier of the present invention;
Fig. 4 is the scheme of installation of a kind of condensate tank of dehumidifier of the present invention;
Fig. 5 is the coordinate diagram of a kind of condensate tank of dehumidifier embodiment of the present invention;
Fig. 6 is the process flow diagram of a kind of level testing methods of the present invention;
Fig. 7 is the another process flow diagram of a kind of level testing methods of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The invention provides a kind of condensate tank of dehumidifier, be installed on automobile head, as shown in Figure 1, be the specific embodiment of condensate tank of dehumidifier of the present invention, described device comprises:
First electrode 101, second electrode 102, analog to digital converter 103 and the first depth of water computing module 104;
Described first electrode 101 forms plane-parallel capacitor with described second electrode 102, capacitance between described plane-parallel capacitor and the depth of water are preset relation, capacitance time anhydrous between described plane-parallel capacitor is the first capacitance, capacitance when being full of water between described plane-parallel capacitor is the second capacitance, and between described plane-parallel capacitor, maximum water depth is first degree of depth;
Described analog to digital converter 103 is for measuring the capacitance of described plane-parallel capacitor;
Described first depth of water computing module 104 is for calculating the depth of water second degree of depth between described plane-parallel capacitor according to the capacitance between described first capacitance, the second capacitance, first degree of depth, described plane-parallel capacitor and described preset relation.
The condensate tank of dehumidifier that application the present embodiment provides, described device is installed on automobile head, two electrodes form plane-parallel capacitor, capacitance between described plane-parallel capacitor linearly changes with the difference of water level between capacitor, be full of water between described plane-parallel capacitor and anhydrous time electric capacity and maximum water depth known, maximum water depth is the length of electrode, when automobile wading travels, certain water level will be had between plane-parallel capacitor, according to capacitance and the known electric capacity of the described plane-parallel capacitor measured, maximum water depth and preset relation calculate the depth of water between described plane-parallel capacitor, can accurately detect the ponding depth of water when automobile wading travels to avoid causing vehicle trouble.
As shown in Figure 2, be the another example structure schematic diagram of condensate tank of dehumidifier of the present invention, corresponding to Fig. 1, described condensate tank of dehumidifier also comprises:
Exciting signal source 105 and clock generator 106;
Described exciting signal source 105 is for making described first electrode 101 and the second electrode 102 form plane-parallel capacitor launching pumping signal to described first electrode 101;
Described clock generator 106, for providing clock signal to described exciting signal source 105, described analog to digital converter 103 and described first depth of water computing module 104, coordinates the frequency of operation of described exciting signal source 105, described analog to digital converter 103 and described first depth of water computing module 104 according to described clock signal.
As shown in Figure 3, for a kind of embodiment of condensate tank of dehumidifier of the present invention, 107 is control circuit module, described analog to digital converter 103, first depth of water computing module 104, exciting signal source 105 and clock generator 106 in Fig. 2 are integrated on 107, be illustrated in figure 4 the scheme of installation of the present embodiment, the condensate tank of dehumidifier 201 of the present embodiment is installed on automobile 202 automobile head position, within front bumper, bottom condensate tank of dehumidifier 201, distance floor level is that H, H can adjust according to wheel diameter D or chassis height.
Two electrode profiles in present embodiment are all identical with material, form plane-parallel capacitor C
x, the capacitance value range of this plane-parallel capacitor is ± 4.096pF, and analog-to-digital conversion module 103 adopts the ∑-△ converter of 24, measures plane-parallel capacitor C
xcapacitance and be converted into the numerical value δ of 24, the scope of δ is 0x000000 to 0Xffffff, and concrete conversion relational expression is as shown in the formula (1):
The parallel capacitor C of two electrode compositions
xthe computing formula of capacitance is as shown in the formula (2):
Wherein, ε is specific inductive capacity, and S is that two electrode right opposites amass, and d is the vertical interval between two electrodes.
As plane-parallel capacitor C
xwhen interior injection has water, C
xdielectric change, namely DIELECTRIC CONSTANT ε can change, thus causes capacitance also to change thereupon.Setting plane-parallel capacitor C
xbetween complete for initial capacitance value during air be C
0, C
xcapacitance when being inside full of water is C
max.As shown in Figure 5, be the value C of the present embodiment plane-parallel capacitor
xwith depth of water h in it
watercoordinate relation, linear relationship can be thought approx, then the depth of water h in plane-parallel capacitor
waterwith plane-parallel capacitor C
xrelational expression can calculate by following formula (3):
So plane-parallel capacitor C
xinterior depth of water h
waterfor:
Wherein C
max, C
0with h
maxbe known parameters or computable parameter.
Be can be calculated by formula (1) and formula (4):
Known by control circuit module 107 by analyzing above, plane-parallel capacitor C can be detected in real time
xvalue, and according to C
xthe degree of depth h of changing value and water level
waterbetween relation, the degree of depth h of water level can be calculated in real time
water.
Depth of accumulated water when road surface is greater than H and is less than (H+h
max) time, the true altitude H of the ponding on road surface
realfor setting height(from bottom) H and the height of water level h to be detected of condensate tank of dehumidifier 201
waterand H
real=H+h
water; When running car in non-ponding road surface or travel on ponding height be less than the road surface of H time, the water level depth H that condensate tank of dehumidifier 201 detects
real=0, running car is in a safe condition.When running car is greater than (H+h in depth of accumulated water
max) time, automobile must be in dangerous transport condition.
Usually for different set vehicle alarm water level threshold value H
report, as actual water level H
real>=H
reporttime, this device can point out driver's water level too dark, exceedes safety traffic water level, and suggestion stops travelling or detouring; As actual water level H
real<H
reporttime, the water level information of reality is only informed driver by this device, and does not do any prompt action.
Present invention also offers a kind of level testing methods, be applied to condensate tank of dehumidifier of the present invention, as shown in Figure 6, be the process flow diagram of level testing methods embodiment of the present invention, described method comprises:
Step S101: the capacitance measuring the plane-parallel capacitor that described first electrode and described second electrode form;
Step S102: calculate the depth of water second degree of depth between described plane-parallel capacitor according to the capacitance between described first capacitance, the second capacitance, first degree of depth, described plane-parallel capacitor and described preset relation.
The level testing methods that application the present embodiment provides, two electrodes form plane-parallel capacitor, capacitance between described plane-parallel capacitor linearly changes with the difference of water level between capacitor, be full of water between described plane-parallel capacitor and anhydrous time electric capacity and maximum water depth known, maximum water depth is the length of electrode, when automobile wading travels, certain water level will be had between plane-parallel capacitor, according to capacitance and the known electric capacity of the described plane-parallel capacitor measured, maximum water depth and preset relation calculate the depth of water between described plane-parallel capacitor, can accurately detect the ponding depth of water when automobile wading travels to avoid causing vehicle trouble.
As shown in Figure 7, be the structural representation of the another embodiment of level testing methods of the present invention, corresponding to Fig. 6, also comprise:
Step S103: described second depth of water and described first is highly added and obtains the actual depth of water.
Step S104: the described actual depth of water is exported.
Step S105: judge whether the described actual depth of water is greater than the presetting alarm threshold value degree of depth, report to the police when the described actual depth of water is greater than the alarm threshold value degree of depth.
It should be noted that, each embodiment in this instructions all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar part mutually see.
Finally, also it should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operational zone, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
Be described in detail device and method provided by the present invention above, apply specific case herein and set forth principle of the present invention and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (12)
1. a condensate tank of dehumidifier, is characterized in that, is installed on automobile head, and described device comprises:
First electrode, the second electrode, analog to digital converter and the first depth of water computing module;
Described first electrode and described second electrode form plane-parallel capacitor, capacitance between described plane-parallel capacitor and the depth of water are preset relation, capacitance time anhydrous between described plane-parallel capacitor is the first capacitance, capacitance when being full of water between described plane-parallel capacitor is the second capacitance, and between described plane-parallel capacitor, maximum water depth is first degree of depth;
Described analog to digital converter is for measuring the capacitance of described plane-parallel capacitor;
Described first depth of water computing module is for calculating the depth of water second degree of depth between described plane-parallel capacitor according to the capacitance between described first capacitance, the second capacitance, first degree of depth, described plane-parallel capacitor and described preset relation.
2. condensate tank of dehumidifier according to claim 1, is characterized in that, also comprises:
Exciting signal source and clock generator;
Described exciting signal source is used for making described first electrode and the second electrode form plane-parallel capacitor to described first electrode emission pumping signal;
Described clock generator is used for providing clock signal to described exciting signal source, described analog to digital converter and described first depth of water computing module, coordinates the frequency of operation of described exciting signal source, described analog to digital converter and described first depth of water computing module according to described clock signal.
3. condensate tank of dehumidifier according to claim 2, is characterized in that, described first electrode and described second electrode are measure-alike strip shaped electric poles, and with car floor at right angle setting.
4. condensate tank of dehumidifier according to claim 3, is characterized in that, described first degree of depth is the length of described first electrode.
5. condensate tank of dehumidifier according to claim 4, it is characterized in that, also comprise the second depth of water computing module, described plane-parallel capacitor is the first height apart from floor level, and described second depth of water computing module is used for highly obtaining the actual depth of water according to described second depth of water and described first.
6. condensate tank of dehumidifier according to claim 5, is characterized in that, also comprises judge module, for judging whether the described actual depth of water is greater than the presetting alarm threshold value degree of depth.
7. condensate tank of dehumidifier according to claim 5, is characterized in that, also comprises output module, for the described actual depth of water being exported.
8. condensate tank of dehumidifier according to claim 6, is characterized in that, also comprises alarm module, for reporting to the police when the described actual depth of water is greater than the alarm threshold value degree of depth.
9. a level testing methods, is characterized in that, for described condensate tank of dehumidifier, described method comprises:
Measure the capacitance of the plane-parallel capacitor that described first electrode and described second electrode form;
The depth of water second degree of depth between described plane-parallel capacitor is calculated according to the capacitance between described first capacitance, the second capacitance, first degree of depth, described plane-parallel capacitor and described preset relation.
10. level testing methods according to claim 9, it is characterized in that, also comprise according to after the depth of water second degree of depth that described first capacitance, the second capacitance, capacitance between first degree of depth and described plane-parallel capacitor calculate between described plane-parallel capacitor:
The actual depth of water is highly obtained according to described second depth of water and described first.
11. level testing methods according to claim 10, is characterized in that, also comprise after highly obtaining the actual depth of water according to described second depth of water and described first:
The described actual depth of water is exported.
12. level testing methods according to claim 10, is characterized in that, also comprise after highly obtaining the actual depth of water according to described second depth of water and described first:
Judge whether the described actual depth of water is greater than the presetting alarm threshold value degree of depth, report to the police when the described actual depth of water is greater than the alarm threshold value degree of depth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410838740.2A CN104596616A (en) | 2014-12-26 | 2014-12-26 | Water level detecting device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410838740.2A CN104596616A (en) | 2014-12-26 | 2014-12-26 | Water level detecting device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104596616A true CN104596616A (en) | 2015-05-06 |
Family
ID=53122549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410838740.2A Pending CN104596616A (en) | 2014-12-26 | 2014-12-26 | Water level detecting device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104596616A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106303883A (en) * | 2016-08-23 | 2017-01-04 | 歌尔股份有限公司 | A kind of detect the method for loudspeaker voice coil vibration displacement, device and loudspeaker monomer |
| CN108279052A (en) * | 2018-01-26 | 2018-07-13 | 厦门拓宝科技有限公司 | A kind of auto-oscillation type caravan cistern water level detection method of high reliability |
| CN111882830A (en) * | 2020-07-31 | 2020-11-03 | 珠江水利委员会珠江水利科学研究院 | Urban waterlogging monitoring, forecasting and early warning method, device and system and storage medium |
| CN112729641A (en) * | 2020-12-01 | 2021-04-30 | 上海空间推进研究所 | System and method for measuring response time of cold air thruster based on variable dielectric capacitance bridge |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201765027U (en) * | 2010-08-16 | 2011-03-16 | 深圳市南方泰科软件技术有限公司 | Capacitive water level sensor |
| CN201795834U (en) * | 2010-09-06 | 2011-04-13 | 深圳市南方泰科软件技术有限公司 | Full automatic capacitance type water level sensor |
| CN203337224U (en) * | 2013-06-24 | 2013-12-11 | 东华大学 | Automobile water level early-warning device |
| CN104169697A (en) * | 2012-02-15 | 2014-11-26 | 捷豹路虎有限公司 | Method and system for determining a wading depth of a vehicle |
| CN204020581U (en) * | 2014-08-06 | 2014-12-17 | 天津圣纳科技有限公司 | Automobile wading detection alarm device |
-
2014
- 2014-12-26 CN CN201410838740.2A patent/CN104596616A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201765027U (en) * | 2010-08-16 | 2011-03-16 | 深圳市南方泰科软件技术有限公司 | Capacitive water level sensor |
| CN201795834U (en) * | 2010-09-06 | 2011-04-13 | 深圳市南方泰科软件技术有限公司 | Full automatic capacitance type water level sensor |
| CN104169697A (en) * | 2012-02-15 | 2014-11-26 | 捷豹路虎有限公司 | Method and system for determining a wading depth of a vehicle |
| CN203337224U (en) * | 2013-06-24 | 2013-12-11 | 东华大学 | Automobile water level early-warning device |
| CN204020581U (en) * | 2014-08-06 | 2014-12-17 | 天津圣纳科技有限公司 | Automobile wading detection alarm device |
Non-Patent Citations (1)
| Title |
|---|
| 周燕: "基于CAV444的电容式液位传感器设计", 《工矿自动化》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106303883A (en) * | 2016-08-23 | 2017-01-04 | 歌尔股份有限公司 | A kind of detect the method for loudspeaker voice coil vibration displacement, device and loudspeaker monomer |
| CN108279052A (en) * | 2018-01-26 | 2018-07-13 | 厦门拓宝科技有限公司 | A kind of auto-oscillation type caravan cistern water level detection method of high reliability |
| CN111882830A (en) * | 2020-07-31 | 2020-11-03 | 珠江水利委员会珠江水利科学研究院 | Urban waterlogging monitoring, forecasting and early warning method, device and system and storage medium |
| CN111882830B (en) * | 2020-07-31 | 2021-12-14 | 珠江水利委员会珠江水利科学研究院 | Urban waterlogging monitoring, forecasting and early warning method, device and system and storage medium |
| CN112729641A (en) * | 2020-12-01 | 2021-04-30 | 上海空间推进研究所 | System and method for measuring response time of cold air thruster based on variable dielectric capacitance bridge |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104596616A (en) | Water level detecting device and method | |
| CN108698622B (en) | Method, device and program for evaluating track state | |
| CN101619968B (en) | Method and device for detecting road surface planeness | |
| CN104215421A (en) | Quick bridge impact coefficient determination method | |
| CN108490163B (en) | Road defect detection equipment, detection vehicle, detection system and detection method | |
| CN104553992A (en) | Vehicle rollover warning method | |
| CN104210488A (en) | Method and device for preventing vehicle from colliding with road edge | |
| JP2013174481A (en) | Vehicle axle load measurement system and bridge monitoring system using the same | |
| CN112477877B (en) | Method and device for acquiring vehicle load, storage medium and vehicle | |
| CN108108568B (en) | Method for eliminating low-frequency sampling indexes affecting online safety monitoring of bridge structure due to temperature | |
| CN105270409A (en) | Device and method for testing peak adhesion coefficient of road surface | |
| CN103968910A (en) | Method for improving motor vehicle fuel quantity estimation precision | |
| CN103901348A (en) | Method suitable for estimating residual discharge capacity of battery under dynamic current working conditions | |
| CN208856801U (en) | Bridge crane deviation correcting device and bridge crane | |
| CN208206155U (en) | Road detection vehicle range calibration apparatus and system | |
| CN106996880A (en) | A kind of city rail vehicle braking ability measurement apparatus and method | |
| CN109030341B (en) | Road detection vehicle distance calibration device, system and method | |
| CN109543149A (en) | A kind of rainy day bituminous pavement safe-stopping sight distance calculation method | |
| CN116101300B (en) | Trailer transportation safety detecting system based on big data | |
| CN102706364A (en) | Online calibration method of scaling factors of micromachining gyroscope for vehicle | |
| CN204807042U (en) | Freight train automobile body size detection device | |
| CN107161158A (en) | A kind of lane departure warning method based on Hall magnetic induction principle | |
| CN103196519A (en) | Alarm device for detecting seeper depth in bridge opening and detection method thereof | |
| CN105300568A (en) | New tyre vertical pressure distribution function, algorithm and test system | |
| CN108020239A (en) | A kind of computational methods of vehicle driving mileage, computing device and automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150506 |
|
| RJ01 | Rejection of invention patent application after publication |