CN107356951A - Air storage car unloading control system - Google Patents
Air storage car unloading control system Download PDFInfo
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- CN107356951A CN107356951A CN201710739838.6A CN201710739838A CN107356951A CN 107356951 A CN107356951 A CN 107356951A CN 201710739838 A CN201710739838 A CN 201710739838A CN 107356951 A CN107356951 A CN 107356951A
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- Prior art keywords
- air storage
- navigation
- image
- equipment
- kaifeng
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Traffic Control Systems (AREA)
Abstract
The present invention relates to a kind of air storage car unloading control system, including GPS navigation equipment, it is arranged on the front end instrument board of air storage car, for detecting the current navigation position of air storage car, and while the current navigation position success of air storage car is obtained, navigation pass signal and current navigation position are sent, while the current navigation position failure of air storage car is obtained, sends local navigation starting signal.By means of the invention it is possible to improve the safe class of air storage car unloading.
Description
Technical field
The present invention relates to air storage car control field, more particularly to a kind of air storage car unloading control system.
Background technology
GPS is the abbreviation of English Global Positioning System (global positioning system).GPS originates in 1958
One project of year US military, comes into operation for 1964.In the 1970s, land, sea, and air of U.S. joint research and development new one
For Global Positioning System.Main purpose is that real-time, round-the-clock and global navigation clothes are provided for three big field of land, sea and air
Business, and for some military purposes such as information gathering, Nuclear detonation monitoring and emergency communications, by the research experiment in more than 20 years, cost
30000000000 dollars, by 1994, own lay of 24 gps satellite constellations that Global coverage rate is up to 98% was completed.
Utilize GPS positioning satellite, the referred to as system positioned in real time in the world, navigated, global positioning satellite
System, abbreviation GPS.GPS is to develop the one kind established by U.S. Department of Defense to have comprehensive, round-the-clock, all the period of time, high-precision
Satellite navigation system, the navigation such as low cost, high accuracy three-dimensional position, speed and accurate timing letter can be provided for Global Subscriber
Breath, is application examples of the communication technology of satellite in navigation field, and he drastically increases the level of IT application of Terre des Hommes's meeting, effectively
Ground has promoted the development of digital economy.
The content of the invention
At present, the Unloading Control of air storage car is carried out yet by simple personnel's authentication mode, and authentication efficiency is low, authentication knot
Fruit error is larger, in order to solve the above problems, the invention provides a kind of air storage car unloading control system, using multiple high-precision
On the basis of spending image processing equipment completion to personnel's face recognition, only in the case where GPS navigation data meets the requirements, side
Start the Unloading Control of air storage car, wherein, it is critical that, in the case where GPS navigation data can not obtain in real time, pass through traversal
The mode of memory historical data obtains, so as to ensure that the safety and reliability of whole system.
According to an aspect of the present invention, there is provided a kind of air storage car unloading control system, the system include：GPS navigation
Equipment, it is arranged on the front end instrument board of air storage car, for detecting the current navigation position of air storage car, and is obtaining air storage car
While current navigation position success, navigation pass signal and current navigation position are sent, working as air storage car is leading obtaining
While the failure of boat position, local navigation starting signal is sent.
More specifically, in the air storage car unloading control system, in addition to：TF storage devices, for remaining air storage
The navigation position for each gas station that car history stops, and the navigation position of each gas station is carried out according to history dwell times
Arranged according to from more to few order.
More specifically, in the air storage car unloading control system, in addition to：
Local traversal equipment, is connected with the TF storage devices and the GPS navigation equipment, for receiving respectively
When stating local navigation starting signal, according to each gas station navigation position put in order from the TF storage devices search with
The navigation position of the gas station of the navigation data that prestores matching, search for the navigation position conduct for the gas station that successfully, then will match to
Local navigation position output, search failure, then send local navigation failure signal；Bonnet operation equipment, judge with the authority
Equipment connects, for when receiving Kaifeng trigger signal, automatically opening up the bonnet of gas tank of air storage car in order to gas station
Be evacuated, be additionally operable to receive forbid break a seal signal when, keep air storage car gas tank bonnet closed mode；
Demographic data's collecting device, it is arranged on the front end instrument board of air storage car, for being carried out to the face of Kaifeng personnel
Image scene data acquisition, to obtain and export Kaifeng personnel's image；First conversion equipment, for receiving Kaifeng personnel's image,
Logarithmic transformation is performed to obtain corresponding logarithm value to the pixel value of each pixel of the Kaifeng personnel image, by described in
Arrangement of the logarithm value according to pixel in the Kaifeng personnel image corresponding to all pixels point difference of Kaifeng personnel's image
Order composition two-dimensional array as logarithmic transformation array to export；Second conversion equipment, it is connected, uses with first conversion equipment
The logarithmic transformation array is decomposed in the reception logarithmic transformation array, and using warp wavelet, to be opened described in acquisition
The low frequency transform array of the high frequency conversion array of envelope personnel's image and the Kaifeng personnel image；
Break up processing equipment, be connected with second conversion equipment, for the high frequency conversion to the Kaifeng personnel image
Array performs bilateral filtering processing to obtain the first processing array, and light is performed to the low frequency transform array of the Kaifeng personnel image
Described first processing array and the second processing array are combined into described by sliding filtering process with obtaining second processing array
Sharpening image corresponding to the personnel's image of Kaifeng；Facial recognition device, it is connected with the differentiation processing equipment, it is described for receiving
Sharpening image, and the face object in the sharpening image is identified, awarded in the facial characteristics recognized with a certain
When power personnel's facial characteristics matches, face recognition pass signal is sent, in the facial characteristics recognized and any authorized person
When facial characteristics all mismatches, face recognition failure signal is sent；Authority judges equipment, is connected with facial recognition device, is used for
When receiving face recognition pass signal, into navigation data match pattern, when receiving face recognition failure signal, directly
Sending and receiving go out to forbid the signal that breaks a seal；
Wherein, the described first processing array and the second processing array are combined into described open by the differentiation processing equipment
Sharpening image corresponding to envelope personnel's image includes：The differentiation processing equipment is handled based on bent reconstructed wave pattern by described first
Array and the second processing array are combined into sharpening image corresponding to the Kaifeng personnel image；The authority judges equipment
Following operate is performed in the navigation data match pattern：When receiving the local navigation position or receive described current
When navigation position and the navigation data that prestores meet, Kaifeng trigger signal is sent, when receiving local navigation failure signal, is sent
Forbid the signal that breaks a seal.
More specifically, in the air storage car unloading control system：The TF storage devices and the local traversal equipment
It is all disposed within the front end instrument board of air storage car.
More specifically, in the air storage car unloading control system：Before the local traversal equipment is arranged on air storage car
Hold on instrument board.
More specifically, in the air storage car unloading control system：The authority judges that equipment is arranged on the storage of air storage car
Covered after gas tank.
More specifically, in the air storage car unloading control system：The TF storage devices also connect with facial recognition device
Connect.
More specifically, in the air storage car unloading control system：The TF storage devices are also stored with facial characteristics number
According to storehouse, the facial feature database saves each authorized person's facial characteristics.
Brief description of the drawings
Embodiment of the present invention is described below with reference to accompanying drawing, wherein：
Fig. 1 is the block diagram of the air storage car unloading control system according to embodiment of the present invention.
Fig. 2 is the structure side of the differentiation processing equipment of the air storage car unloading control system according to embodiment of the present invention
Block diagram.
Reference：1GPS navigation equipments；2TF storage devices；3 local traversal equipment；4 bonnet operation equipments；5 personnel's numbers
According to collecting device；6 differentiation processing equipments；61 bilateral filtering processing units；62 smooth filter processing units；63 array assembled units
Embodiment
The embodiment of the air storage car unloading control system of the present invention is described in detail below with reference to accompanying drawings.
GPS predecessor is a kind of Transit satellite alignment system (Transit) of US military development, is developed within 1958,
Formally come into operation within 1964.The StarNet that the system is formed with 5 to 6 satellites works, and at most bypasses the earth daily 13 times, and
Elevation information can not be provided, it is also not fully up to expectations in terms of positioning precision.However, transit navigation system causes research and development department to satellite
Positioning achieves preliminary experience, and demonstrates the feasibility positioned by satellite system, and paving has been buried for GPS development
Pad.Because satellite fix shows that huge superiority and transit navigation system in terms of navigation are present to submarine and ship navigation side
The great drawback in face.U.S.'s the armies of navy, army and air force and civilian department all feel that there is an urgent need to a kind of new satellite navigation system.
Therefore, United States Naval Research Laboratory (NRL) proposes entitled Tinmation 12 to 18 satellite compositions of use
The global location net plan of 10000km height, and a test satellite was respectively transmitted in 1967,1969 and 1974,
Preliminary test atomic clock timekeeping system on these satellites, this is the pinpoint bases of GPS.And USAF then proposes
The 621-B plan that 3 to 4 group of stars are formed with every 4 to 5 satellites of a group of stars, in these satellites in addition to 1 using geo-stationary orbit its
Remaining all service life be 24h inclined plane, plan distribution satellite distance measuring signal based on pseudo noise code (PRN), its
Powerful function, it can also be detected when signal density is less than the 1% of ambient noise.The Successful utilization of pseudo noise code is
GPS is able to a successful important foundation.The plan of naval is mainly used in providing low dynamic 2 dimension positioning for naval vessel, empty
The plan of army can be for providing high dynamic service, but system is excessively complicated.Due to simultaneously develop two systems can cause it is huge
Expense and here two plans are provided to provide global location and design, so U.S. Department of Defense in 1973 closes 2
Two be one, and the satellite navigation taken the lead by Ministry of National Defence positions co-plan office (JPO) leader, and administrative body also is built up in into Lip river China fir
At air force's space flight of rock.Mechanism member is numerous, including AUS, naval, marine corps, Ministry of Communications, DMA,
NATO and the representative of Australia.
Initial GPS plans to be born under the leader of American Association Plan Bureau, and 24 satellites are placed on mutually by the program
Into on 120 degree of three tracks.There are 8 satellites on each track, any point can observe 6 to 9 satellites on the earth.This
Sample, for thick code precision up to 100m, smart code precision is 10m.Because budget is compressed, GPS plans have to reduce satellite launch quantity,
It is changed to by 18 satellite distributions on 60 degree of 6 tracks are mutually, but this scheme causes satellite reliability to ensure.
Last modification is carried out again within 1988：21 work stars and 3 standby stars are operated on 6 tracks for being mutually 60 degree.This
And working method used in gps satellite.
GPS navigation system be based on global 24 positioning satellites, to all parts of the world it is round-the-clock three-dimensional is provided
A kind of radio-navigation positioning system of the information such as position, three-dimensional velocity.It is made up of three parts, when ground control segment,
It is made up of master station, ground-plane antenna, monitoring station and communication accessory system.Second, space segment, is made up of 24 satellites, is distributed in
6 orbit planes.Third, user's set part, is made up of GPS and satellite antenna.Civilian positioning precision is up to 10 meters
It is interior.
In the prior art, there is no effectively using GPS navigation data judge current unloading oil whether legal authentication machine
System, not to mention the authentication mechanism that face recognition pattern is combined.In order to overcome above-mentioned deficiency, the present invention has built one kind
Air storage car unloading control system, for solving above-mentioned technical problem.
Fig. 1 is the block diagram of air storage car unloading control system according to embodiment of the present invention, the system
Including：
GPS navigation equipment, it is arranged on the front end instrument board of air storage car, for detecting the current navigation position of air storage car,
And while the current navigation position success of air storage car is obtained, navigation pass signal and current navigation position are sent, is being obtained
While taking the current navigation position of air storage car to fail, local navigation starting signal is sent.
Then, continue that the concrete structure of the air storage car unloading control system of the present invention is further detailed.
The control system also includes：
TF storage devices, the navigation position of each gas station for remaining the stop of air storage car history, and according to history
Dwell times to the navigation position of each gas station arrange according to from more to few order.
The control system also includes：
Local traversal equipment, is connected with the TF storage devices and the GPS navigation equipment, for receiving respectively
When stating local navigation starting signal, according to each gas station navigation position put in order from the TF storage devices search with
The navigation position of the gas station of the navigation data that prestores matching, search for the navigation position conduct for the gas station that successfully, then will match to
Local navigation position output, search failure, then send local navigation failure signal；
Bonnet operation equipment, judge that equipment is connected with the authority, for when receiving Kaifeng trigger signal, beating automatically
The bonnet of the gas tank of air storage car is opened in order to which gas station is evacuated, be additionally operable to receive forbid break a seal signal when, keep
The closed mode of the bonnet of the gas tank of air storage car；
Demographic data's collecting device, it is arranged on the front end instrument board of air storage car, for being carried out to the face of Kaifeng personnel
Image scene data acquisition, to obtain and export Kaifeng personnel's image；
First conversion equipment, for receiving Kaifeng personnel's image, to each pixel of the Kaifeng personnel image
Pixel value performs logarithmic transformation to obtain corresponding logarithm value, by corresponding to all pixels point difference of the Kaifeng personnel image
According to pixel, putting in order in the Kaifeng personnel image forms two-dimensional array to be used as logarithmic transformation array to logarithm value
Output；
Second conversion equipment, it is connected with first conversion equipment, for receiving the logarithmic transformation array, and using bent
Wave conversion decomposes to the logarithmic transformation array, to obtain the high frequency conversion array of the Kaifeng personnel image and described
The low frequency transform array of Kaifeng personnel's image；
Break up processing equipment, be connected with second conversion equipment, for the high frequency conversion to the Kaifeng personnel image
Array performs bilateral filtering processing to obtain the first processing array, and light is performed to the low frequency transform array of the Kaifeng personnel image
Described first processing array and the second processing array are combined into described by sliding filtering process with obtaining second processing array
Sharpening image corresponding to the personnel's image of Kaifeng；
As shown in Fig. 2 the differentiation processing equipment includes bilateral filtering processing unit, smooth filter processing unit and array
Assembled unit, the bilateral filtering processing unit are connected with the smooth filter processing unit, the smooth filter processing unit
It is connected with the array assembled unit.
Facial recognition device, it is connected with the differentiation processing equipment, for receiving the sharpening image, and to described clear
Face object in clearization image is identified, and matches in the facial characteristics recognized and a certain authorized person's facial characteristics
When, face recognition pass signal is sent, when the facial characteristics and any authorized person's facial characteristics recognized all mismatches, hair
Go out facial recognition failures signal；
Authority judges equipment, is connected with facial recognition device, for when receiving face recognition pass signal, into leading
Boat Data Matching pattern, when receiving face recognition failure signal, directly send and forbid the signal that breaks a seal；
Wherein, the described first processing array and the second processing array are combined into described open by the differentiation processing equipment
Sharpening image corresponding to envelope personnel's image includes：The differentiation processing equipment is handled based on bent reconstructed wave pattern by described first
Array and the second processing array are combined into sharpening image corresponding to the Kaifeng personnel image；
Wherein, the authority judges that equipment performs following operation in the navigation data match pattern：When receiving
State local navigation position or receive the current navigation position and prestore navigation data when meeting, send Kaifeng trigger signal,
When receiving local navigation failure signal, send and forbid the signal that breaks a seal.
In the control system：
The TF storage devices and the local traversal equipment are all disposed within the front end instrument board of air storage car.
In the control system：
The local traversal equipment is arranged on the front end instrument board of air storage car.
In the control system：
The authority judges that equipment covers after being arranged on the gas tank of air storage car.
In the control system：
The TF storage devices are also connected with facial recognition device.
And in the control system：
The TF storage devices are also stored with facial feature database, and the facial feature database saves each mandate
Personnel's facial characteristics.
In addition, image filtering, i.e., press down under conditions of image detail feature is retained as far as possible to the noise of target image
System, is indispensable operation in image preprocessing, and the quality of its treatment effect will directly influence successive image processing and divide
The validity and reliability of analysis.
Due to the imperfection of imaging system, transmission medium and recording equipment etc., digital picture is in its formation, transmission log mistake
Often polluted in journey by a variety of noises.In addition, some links in image procossing when the picture object inputted and are not so good as pre-
Also noise can be introduced when thinking in result images.These noises often show as one on image and cause the isolated of stronger visual effect
Pixel or block of pixels.Typically, noise signal it is uncorrelated to the object to be studied it occur with useless message form, upset figure
The observable information of picture.For data image signal, psophometer is either large or small extreme value, and these extreme values are acted on by plus-minus
On the true gray value of image pixel, the interference of bright, dim spot is caused to image, greatly reduces picture quality, influence image restoration,
The progress of the follow-up work such as segmentation, feature extraction, image recognition.A kind of wave filter for effectively suppressing noise is constructed to must take into consideration
Two basic problems：The noise in target and background can effectively be removed；Meanwhile can protect well image object shape,
Size and specific geometry and topological features.
One kind in conventional image filtering pattern is nonlinear filter, it is, in general, that when signal spectrum and noise frequency
Such as the noise as caused by mission nonlinear or non-gaussian be present and make an uproar when composing aliasing or when containing nonadditivity noise in signal
Sound etc.), traditional linear filter technology, such as Fourier conversion, while noise is filtered out, always blurred picture is thin in some way
Section (such as edge) and then the extraction property reduction for causing the positioning precision and feature as linear character.And nonlinear filter is
Based on a kind of Nonlinear Mapping relation to input signal, often a certain specific noise approx can be mapped as zero and retained
Signal wants feature, thus it can overcome the weak point of linear filter to a certain extent.
Using the air storage car unloading control system of the present invention, can not ensure for the unloading of air storage car in the prior art security
Technical problem, by by the face recognition based on image, the legitimacy of GPS navigation position identification combine, improve storage
The unloading security of gas car, more it is essential that in the acquisition of GPS navigation position, take to obtain and locally travel through in real time combining
Mode, so as to ensure that air storage car unloading validity.
It is understood that although the present invention is disclosed as above with preferred embodiment, but above-described embodiment and it is not used to
Limit the present invention.For any those skilled in the art, without departing from the scope of the technical proposal of the invention,
Many possible changes and modifications are all made to technical solution of the present invention using the technology contents of the disclosure above, or are revised as
With the equivalent embodiment of change.Therefore, every content without departing from technical solution of the present invention, the technical spirit pair according to the present invention
Any simple modifications, equivalents, and modifications made for any of the above embodiments, still fall within the scope of technical solution of the present invention protection
It is interior.
Claims (8)
1. a kind of air storage car unloading control system, including：
GPS navigation equipment, it is arranged on the front end instrument board of air storage car, for detecting the current navigation position of air storage car, and
While obtaining the current navigation position success of air storage car, navigation pass signal and current navigation position are sent, is store obtaining
While the current navigation position failure of gas car, local navigation starting signal is sent.
2. air storage car unloading control system as claimed in claim 1, it is characterised in that the system also includes：
TF storage devices, the navigation position of each gas station for remaining the stop of air storage car history, and stopped according to history
Number to the navigation position of each gas station arrange according to from more to few order.
3. air storage car unloading control system as claimed in claim 2, it is characterised in that the system also includes：
Local traversal equipment, is connected with the TF storage devices and the GPS navigation equipment, for receiving described respectively
During ground navigation starting signal, searched for according to the putting in order for navigation position of each gas station from the TF storage devices with prestoring
The navigation position of the gas station of navigation data matching, the navigation position for the gas station that successfully, then will match to is searched for as local
Navigation position exports, search failure, then sends local navigation failure signal；
Bonnet operation equipment, judge that equipment is connected with the authority, for when receiving Kaifeng trigger signal, automatically opening up storage
The bonnet of the gas tank of gas car is evacuated in order to gas station, be additionally operable to receive forbid break a seal signal when, keep air storage
The closed mode of the bonnet of the gas tank of car；
Demographic data's collecting device, it is arranged on the front end instrument board of air storage car, for carrying out scene to the face of Kaifeng personnel
Image data acquiring, to obtain and export Kaifeng personnel's image；
First conversion equipment, for receiving Kaifeng personnel's image, to the pixel of each pixel of the Kaifeng personnel image
Value performs logarithmic transformation to obtain corresponding logarithm value, by logarithm corresponding to all pixels point difference of the Kaifeng personnel image
According to pixel, putting in order in the Kaifeng personnel image forms two-dimensional array to be used as logarithmic transformation array to export to value；
Second conversion equipment, it is connected with first conversion equipment, becomes for receiving the logarithmic transformation array, and using bent ripple
Change and the logarithmic transformation array is decomposed, to obtain the high frequency conversion array of the Kaifeng personnel image and the Kaifeng
The low frequency transform array of personnel's image；
Break up processing equipment, be connected with second conversion equipment, for the high frequency conversion array to the Kaifeng personnel image
Bilateral filtering processing is performed to obtain the first processing array, smooth filter is performed to the low frequency transform array of the Kaifeng personnel image
Described first processing array and the second processing array are combined into the Kaifeng by ripple processing to obtain second processing array
Sharpening image corresponding to personnel's image；
Facial recognition device, it is connected with the differentiation processing equipment, for receiving the sharpening image, and to the sharpening
Face object in image is identified, when the facial characteristics recognized matches with a certain authorized person's facial characteristics, hair
Go out face and be identified as function signal, when the facial characteristics and any authorized person's facial characteristics recognized all mismatches, send face
Portion's recognition failures signal；
Authority judges equipment, is connected with facial recognition device, for when receiving face recognition pass signal, into navigation number
According to match pattern, when receiving face recognition failure signal, directly send and forbid the signal that breaks a seal；
Wherein, the described first processing array and the second processing array are combined into the people from Kaifeng by the differentiation processing equipment
Sharpening image corresponding to member's image includes：The differentiation processing equipment is based on bent reconstructed wave pattern and handles array by described first
Sharpening image corresponding to the Kaifeng personnel image is combined into the second processing array；
Wherein, the authority judges that equipment performs following operation in the navigation data match pattern：When receiving described
Ground navigation position receives the current navigation position and prestores navigation data when meeting, and sends Kaifeng trigger signal, when connecing
When receiving local navigation failure signal, send and forbid the signal that breaks a seal.
4. air storage car unloading control system as claimed in claim 3, it is characterised in that：
The TF storage devices and the local traversal equipment are all disposed within the front end instrument board of air storage car.
5. air storage car unloading control system as claimed in claim 4, it is characterised in that：
The local traversal equipment is arranged on the front end instrument board of air storage car.
6. air storage car unloading control system as claimed in claim 5, it is characterised in that：
The authority judges that equipment covers after being arranged on the gas tank of air storage car.
7. air storage car unloading control system as claimed in claim 6, it is characterised in that：
The TF storage devices are also connected with facial recognition device.
8. air storage car unloading control system as claimed in claim 7, it is characterised in that：
The TF storage devices are also stored with facial feature database, and the facial feature database saves each authorized person
Facial characteristics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710739838.6A CN107356951A (en) | 2017-08-25 | 2017-08-25 | Air storage car unloading control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710739838.6A CN107356951A (en) | 2017-08-25 | 2017-08-25 | Air storage car unloading control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107356951A true CN107356951A (en) | 2017-11-17 |
Family
ID=60289426
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710739838.6A Withdrawn CN107356951A (en) | 2017-08-25 | 2017-08-25 | Air storage car unloading control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107356951A (en) |
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2017
- 2017-08-25 CN CN201710739838.6A patent/CN107356951A/en not_active Withdrawn
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Application publication date: 20171117 |