CN104597799B - Oil tank truck with satellite positioning electronic lock and vehicle body stabilizing system - Google Patents
Oil tank truck with satellite positioning electronic lock and vehicle body stabilizing system Download PDFInfo
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- 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
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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Abstract
The invention relates to an oil tank truck with a satellite positioning electronic lock and a vehicle body stabilizing system. The oil tank truck with the satellite positioning electronic lock and the vehicle body stabilizing system comprises a monitoring center, a vehicle-mounted terminal host and an electronic lead seal control unit, after the oil tank truck arrives at the destination, a radio frequency card reading-writing module reads a card releasing request, the vehicle-mounted terminal host uploads the current geographical coordinates through a GPRS/CDMA communication module, the monitoring center judges whether the oil tank truck is located in preset geographical coordinates, if so, the monitoring center sends a releasing command, and the vehicle-mounted terminal host controls an oil hole opening/closing executor to open an oil discharge valve after acquiring the releasing command through the GPRS/CDMA communication module. The oil tank truck with the satellite positioning electronic lock and the vehicle body stabilizing system realizes to effectively monitor the oil tank truck through the monitoring center, vehicle-mounted terminal host and electronic lead seal control unit and effectively avoids oil stealing and the like, and moreover, the oil tank truck fitly works with the vehicle body stabilizing system, and accordingly the real-time monitoring and safety are integrated.
Description
Technical field
The present invention relates to automotive field, more particularly, to a kind of oil tank with satellite fix electronic lock and VSC
Car.
Background technology
With the development of national economy, the increase of urban population, the expansion of scope, along with product oil demand with Japanese TV play
Increase, make the transport of oil product also increasingly busy.Oil truck because its motor-driven, flexible the features such as, become short distance oil product transport main
Carrier.Yet with oil truck operation dispersion, key operation data relies on and manually makes an inventory statistics, not only consumes a large amount of manpower moneys
Source, and the data gathering also easily is subject to interference from human factor, credibility is not high, causes oil truck to lack effectively during operation
Monitoring.This problem shows more and more prominent with constantly riseing of oil price in recent years.
Car is not only left for other places in transit, also deposits just privately from oil storage by the staff of some quality differences at present
The phenomenon to seek private interests for the emptying in tank.The behavior of this emptying privately not only causes huge economic losses to oil company,
Bring very big potential safety hazard to social public security.Petrochemical system administration section at different levels manages to oil products delivery, oil product number
The difficulty of amount and quality management is increasing, how to carry out the quantity in oil product transportation, quality management and has become pipes at different levels
One common difficulty of reason department.
2007, the Zhang Yong of Daqing Petroleum Institute described a kind of vehicle-mounted lock control system of product oil tank car, in product tank
On car, vehicle-mounted monitoring system is installed, realizes geographical position coordinates data locking, the detection of lock control system working condition and alarm signal
The functions such as the transmission control of breath.Wherein lock control system needs to transform the lock control machinery knot of existing tank car charge of oil mouth and emptying pump box
Structure, installs explosion-proof electronic lock pin control device.During system operation, product oil tank car is obtained in real time by geographical position coordinates system
Position data, when tank car is in the region that can carry out loading, unloading oil operation, microcontroller sends solution to respective electronic coded lock
Lock instruction is it is allowed to carry out charge of oil or emptying operation.Microcontroller real-time inspection electronic password lock and the state of vehicle, different in generation
When often, alarm signal is sent by GPRS；System real time record vehicle runs trace and various operation, is easy to inquire about.
2008, Xiamen University Hu Xiao was in its master thesis《Supervisory systems runed by oil truck based on GPRS network
Design》In, with Xiamen Ou Pusen Science and Technology Ltd. " research and development of petroleum streams KXG " project as application background,
The car operation monitoring management system of oil truck is studied and has been designed, highlighted vehicle monitoring in this set system whole
End vehicle carries the design of car-mounted terminal main frame (also known as electronic seal), the hardware designs to vehicle monitoring terminal in system
And software programming is described in detail.This system can realize monitor in real time hydraulic fluid port state, the operation of vehicle-mounted monitoring equipment
Record, the delivery management of oil product, the record of violation operation and warning, the real-time Transmission of monitoring data, the backup of monitoring data with
The functions such as the information system management of collection and oil product operation data.But system still suffers from some and wants improved place, such as system
Used in card number more and every card can only correspond to a kind of function, for staff's management card bring certain not
Just.And non-Design Orientation module is it is impossible to complete the positioning function of vehicle in system.
Content of the invention
It is an object of the invention to provide a kind of satellite positioning module positioning electronic lock system, transported with solving product oil
Oil tank vehicle electronic lead sealing security of system problem in journey.
In order to solve above-mentioned technical problem, the invention provides a kind of satellite positioning module positioning electronic lock system, including：
Surveillance center, for storing the default geographical coordinate of oil truck Song You destination, and is sat with the current geographic of the oil truck uploading
Mark compares, and judges whether to send deblocking instruction；The car-mounted terminal main frame being connected with electronic lead sealing control unit, this car-mounted terminal
Main frame includes：Main MCU module, the GPRS/CDMA communication module being connected with this main MCU module and be used for obtaining current geographic coordinate
Satellite positioning module；Described electronic lead sealing control unit, including：From MCU module, opened by the hydraulic fluid port that this controls from MCU module
Close executor, with the described RF Signal module being connected from MCU module；After oil truck arrives at, described radio-frequency card
Module for reading and writing reads the deblocking request of deblocking card, and described car-mounted terminal main frame uploads current position by GPRS/CDMA communication module
Reason coordinate, described Surveillance center judges whether oil truck is located at default geographical coordinate, if being located at, sends deblocking instruction, i.e. institute
State car-mounted terminal main frame after GPRS/CDMA communication module obtains deblocking instruction, control port switch actuator is opened fuel-displaced
Valve.
Further, in order to realize simple, effectively valve is controlled, described hydraulic fluid port switch actuator includes：Gear hooks,
By the described direct current generator from MCU module control, the head that described gear hooks is as the pin-and-hole cooperation of lock pin and valve shaft, described gear
The afterbody hooking is connected with the rotating shaft of direct current generator, i.e. described direct current generator passes through to control the afterbody that gear hooks to rotate, and band pendulum lock pin is inserted
Enter or extract pin-and-hole to lock or to solve Lock valve；The afterbody that described gear hooks extends first, second blend stop, and described first, second
Blend stop is spacing to be contacted to produce corresponding signal when locking or solve Lock valve with the first or second distance position sensor, described
From MCU module, valve current state is judged by this signal.
The technique scheme of the present invention has advantages below compared to existing technology：
（1）The present invention is achieved to oil truck in fortune by Surveillance center, car-mounted terminal main frame, electronic lead sealing control unit
Effective monitoring during defeated, is effectively prevented the phenomenon such as oil steathily and occurs, and integrate real-time and safety；（2）
Valve opening is carried out by direct current generator to hydraulic fluid port switch actuator, valve closing controls, scheme is simple, good reliability.
Present invention also offers a kind of oil truck, this oil truck equipped with described satellite positioning module positioning electronic lock system,
To solve the oil tank vehicle borne reliability in product oil transportation, safety issue.
On the basis of the technical scheme of above-mentioned GPS location electronic lock system, described oil truck also includes：Vehicle body stability series
System, which solves oil truck in the process of moving, when vehicle is in turning it is possible to there is the technical problem of rollover.
Wherein, described oil truck is full trailor, including：Tractor and the towed vehicle for carrying oil tank；Described vehicle body is steady
Determine system to include：Positioned at the inertial navigation system of the center of roof, the liquid level detection device in oil tank, traction
In-car electric power-assisted steering apparatus, and be connected with described inertial navigation system and liquid level detection device electronic for controlling
The processor module that servo steering device starts；Described inertial navigation system is it is adaptable to the longitudinal direction of real-time detection towed vehicle accelerates
Degree axWith lateral acceleration ay；Described liquid level detection device is it is adaptable to detect the current level height in oil tank；Described processor
Module is it is adaptable to according to described longitudinal acceleration axWith lateral acceleration ayCalculate the real-time offset angle of towed vehicleAnd
The ratio of liquid level when being filled it up with according to current level height and oil tank, is obtained current level aspect ratio, is looked into using look-up table
Ask offset angle threshold value table, to obtain current level aspect ratio corresponding offset angle threshold value beta '；If β >=β ', start described electronic
Servo steering device.
Described offset angle threshold value table is：
| Liquid level ratio（%） | Offset angle threshold value |
| 0 | 5.0° |
| 10 | 4.9° |
| 20 | 4.8° |
| 30 | 4.6° |
| 40 | 4.4° |
| 50 | 4.2° |
| 60 | 3.9° |
| 70 | 3.6° |
| 80 | 3.3° |
| 90 | 3.0° |
| 100 | 2.6° |
On the basis of above-mentioned VSC, present invention also offers the method for work of this oil truck.
Described oil truck is full trailor, including：Tractor and the towed vehicle for carrying oil tank；Described VSC
Including：Positioned at the inertial navigation system of the center of roof, the liquid level detection device in oil tank, draw in-car
Electric power-assisted steering apparatus, and be connected with described inertial navigation system and liquid level detection device for controlling electric boosted turn
The processor module starting to device；
The method of work of described VSC includes：
Described inertial navigation system is applied to longitudinal acceleration a of real-time detection towed vehiclexWith lateral acceleration ay；Described
Liquid level detection device is applied to the current level height in detection oil tank；Described processor module is applied to and is added according to described longitudinal direction
Speed axWith lateral acceleration ayCalculate the real-time offset angle of towed vehicleAnd added according to current level height and oil tank
The ratio of liquid level when full, obtains current level aspect ratio, inquires about offset angle threshold value table using look-up table, current to obtain
Liquid level is than corresponding offset angle threshold value beta '；If β >=β ', start described electric power-assisted steering apparatus；
Described offset angle threshold value table is：
| Liquid level ratio（%） | Offset angle threshold value |
| 0 | 5.0° |
| 10 | 4.9° |
| 20 | 4.8° |
| 30 | 4.6° |
| 40 | 4.4° |
| 50 | 4.2° |
| 60 | 3.9° |
| 70 | 3.6° |
| 80 | 3.3° |
| 90 | 3.0° |
| 100 | 2.6° |
The technique scheme of the present invention has advantages below compared to existing technology：The present invention utilize liquid level than with inclined
The corresponding relation of angle setting threshold value, obtains the offset angle threshold value of different liquid levels, and with real-time offset angleCompare, with
Control whether electric power-assisted steering apparatus start, that is, as β >=β ', then start described electric power-assisted steering apparatus, effectively prevent
Vehicle rollover, and after described VSC can be with RTC unloading, liquid level declines, and adjusts corresponding offset angle threshold
Value；Thus, have more reliability than 5.0 ° traditional of fixed bias angle threshold value.
Brief description
In order that present disclosure is more likely to be clearly understood, below according to specific embodiment and combine accompanying drawing,
The present invention is further detailed explanation, wherein
Fig. 1 is the circuit block diagram of the Big Dipper GPS location electronic lock of the present invention；
Fig. 2 is the structural representation one of the hydraulic fluid port switch actuator of the present invention；
Fig. 3 is the structural representation two of the hydraulic fluid port switch actuator of the present invention.
Wherein, gear hook 1, the head 101 of gear hook, the afterbody 102 of gear hook, the first blend stop 103, the second blend stop 104, valve shaft
2nd, pin-and-hole 201, the rotating shaft 3 of direct current generator, the first distance position sensor 401, the second distance position sensor 402.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment the present invention is described in detail：
Embodiment one
See Fig. 1, a kind of satellite positioning module positioning electronic lock system, including：
Surveillance center, for storing the default geographical coordinate of oil truck Song You destination, and with the working as of the oil truck uploading
Front geographical coordinate compares, and judges whether to send deblocking instruction；The car-mounted terminal main frame being connected with electronic lead sealing control unit, should
Car-mounted terminal main frame includes：Main MCU module, the GPRS/CDMA communication module being connected with this main MCU module and being used for obtains current
The satellite positioning module of geographical coordinate；Described electronic lead sealing control unit, including：From MCU module, by this from MCU module control
Hydraulic fluid port switch actuator, with the described RF Signal module being connected from MCU module；After oil truck arrives at, institute
State the deblocking request that RF Signal module reads deblocking card, described car-mounted terminal main frame passes through on GPRS/CDMA communication module
Pass current geographic coordinate, described Surveillance center judges whether oil truck is located at default geographical coordinate, if being located at, sending deblocking and referring to
Order, that is, described car-mounted terminal main frame after GPRS/CDMA communication module obtains deblocking instruction, beat by control port switch actuator
Output fuel tap.
See that described in Fig. 2 and Fig. 3, hydraulic fluid port switch actuator includes：Gear hook 1, by the described direct current generator from MCU module control,
The head 101 that described gear hooks coordinates as the pin-and-hole 201 of lock pin and valve shaft 2, the afterbody 102 that described gear hooks and direct current generator
Rotating shaft 3 connects, i.e. described direct current generator passes through to control the afterbody 102 that gear hooks to rotate, and band pendulum lock pin inserts or pull out pin-and-hole 201
To lock or to solve Lock valve；The afterbody 102 that described gear hooks extends the first blend stop 103, the second blend stop 104, and described first, second
Blend stop spacing lock or solution Lock valve when, contact with the first distance position sensor 401 or the second distance position sensor 402
To produce corresponding signal, described from MCU module, valve current state is judged by this signal.
Wherein, described main MCU module and being realized using single-chip microcomputer from MCU module, described satellite positioning module can
With using GPS module or Beidou satellite navigation system（I.e.：Big Dipper GPS）, Big Dipper GPS is the Global Satellite that China voluntarily develops
Positioning and communication system（BDS）.
Described satellite positioning module positioning electronic lock system also includes：Apply envelope card, deblocking card and super authority card,
Described envelope of applying is blocked, and in oil tank vehicle before petrol station emptying terminates to leave petrol station, staff should be blocked using applying envelope
Hydraulic fluid port valve is carried out applying envelope.Apply Feng Kahou detecting, car-mounted terminal main frame will apply envelope card card number information and current oil truck
Geographical position coordinates positional information upload to Surveillance center simultaneously；Surveillance center passes through to judge, determines that oil tank vehicle is closing
Tagmeme postpones assigns instruction, and electronic lead sealing control unit completes the envelope of applying of corresponding hydraulic fluid port is operated according to instruction.
Deblocking card, after reaching specified emptying place, staff is carried out to hydraulic fluid port valve oil tank vehicle using deblocking card
Deblocking.Its flow process is identical with deblocking card, repeats no more here.
Super authority card, for preventing car-mounted terminal hostdown, radio antenna fault, operation control platform event
Barrier etc. is when leading to not normal authentication scenario, or lead to system cannot be normally carried out applying less than geographical position coordinates etc. in search,
The situation of unsealing operation, can be stuck in without hydraulic fluid port valve is carried out under Surveillance center's certification applying with unpacking behaviour by super authority
Make.
The system pre-sets multiple super authority card card numbers in advance in electronic lead sealing control unit, when brushing such card,
From MCU module directly execution apply, unsealing operation.Pre-set the function of card, the hydraulic fluid port according to corresponding to setting is opened, need not go up
Report Surveillance center.But car-mounted terminal main frame answers No. ID of registration card, operation note afterwards, and send to Surveillance center for inspection
Look into.Once swiping the card successfully, this card is changed into invalid, need to input this card number blocking from MCU module ability again by Surveillance center
Continue to use next time.
Further, present invention also offers a kind of oil truck, this oil truck is equipped with described satellite positioning module positioning electronic
Lock system, to solve the oil tank vehicle borne reliability in product oil transportation, safety issue.
Embodiment two
Oil truck on the basis of above-described embodiment one is also equipped with VSC, and described oil truck is full trailor,
Including：Tractor and the towed vehicle for carrying oil tank.
Described VSC includes：Positioned at the inertial navigation system of the center of roof, in oil tank
Liquid level detection device, the in-car electric power-assisted steering apparatus of traction, and with described inertial navigation system and Level Detection dress
Put the connected processor module for controlling electric power-assisted steering apparatus startup.
Described inertial navigation system is it is adaptable to longitudinal acceleration a of real-time detection towed vehiclexWith lateral acceleration ay.
Described liquid level detection device is it is adaptable to detect the current level height in oil tank.
Described processor module is it is adaptable to according to described longitudinal acceleration axWith lateral acceleration ayCalculate towed vehicle
Offset angle in real timeAnd the ratio of liquid level when being filled it up with according to current level height and oil tank, obtain current level
Aspect ratio, inquires about offset angle threshold value table using look-up table, to obtain current level aspect ratio corresponding offset angle threshold value beta '；If β
>=β ', then start described electric power-assisted steering apparatus, and wherein, offset angle is barycenter offset angle, public in Chinese patent literature application
Cloth CN102582681A, title：AC permanent-magnet formula Electric Power Steering Control System based on DSP and method and Harbin work
The Zhang Jinzhu of Cheng great Xue thesis for the doctorate disclosed in June, 2012《Vehicle steadily control system research based on GPS》In have phase
Close the discussion of concept, because in real process, centroid position is not easy to calculate, therefore in actual applications, will be by inertial navigation system
Described longitudinal acceleration a that system obtainsxWith lateral acceleration ayCalculate the real-time offset angle of towed vehicle
Above-mentioned liquid level detection device can adopt the devices such as liquidometer to realize, and all has related Level Detection in prior art
Device；Inertial navigation system abbreviation INS, it comprises three accelerometers, and each accelerometer can be on a sensitive direction
Acceleration, usual three sensitive directions are orthogonal.In order to be navigated it is necessary to accelerometer with reference to inertial coordinate system
Sensing be tracked.Thus can be able to be surveyed with sensitive carrier with respect to the rotary motion of inertial coordinate system with gyro
Determine the sensing in all moment for the accelerometer.There are these information, just acceleration can be decomposed reference frame, then carry out
Integration.Described electric power-assisted steering apparatus abbreviation EPS（Electronic Power Steering）, Harbin Engineering University
Zhang Jinzhu thesis for the doctorate disclosed in June, 2012《Vehicle steadily control system research based on GPS》In also refer to one kind
Electric power-assisted steering apparatus.Described processor module, can be realized using ARM.
The method obtaining offset angle threshold value table includes：Obtain the inclined of corresponding unstability critical state through many experiments respectively
Angle setting, that is,
Experiment one
From five No. 92 gasoline of state, vehicle：Eight tank service trucks after four before east wind Gekko Swinhonis
| Liquid level ratio（%） | Offset angle |
| 0 | 5.1° |
| 10 | 4.93° |
| 20 | 4.82° |
| 30 | 4.63° |
| 40 | 4.45° |
| 50 | 4.28° |
| 60 | 4.01° |
| 70 | 3.70° |
| 80 | 3.39° |
| 90 | 3.08° |
| 100 | 2.67° |
Experiment two
From five No. 92 gasoline of state, vehicle：The little three axle oil trucks of east wind Gekko Swinhonis
| Liquid level ratio（%） | Offset angle |
| 0 | 5.05° |
| 10 | 4.92° |
| 20 | 4.83° |
| 30 | 4.62° |
| 40 | 4.43° |
| 50 | 4.26° |
| 60 | 4.01° |
| 70 | 3.62° |
| 80 | 3.36° |
| 90 | 3.07° |
| 100 | 2.65° |
Experiment three
From five No. 95 gasoline of state, vehicle：Six oil trucks after four before liberation
| Liquid level ratio（%） | Offset angle |
| 0 | 5.03° |
| 10 | 4.91° |
| 20 | 4.82° |
| 30 | 4.61° |
| 40 | 4.42° |
| 50 | 4.23° |
| 60 | 3.98° |
| 70 | 3.61° |
| 80 | 3.34° |
| 90 | 3.05° |
| 100 | 2.64° |
Experiment four
From five No. 95 gasoline of state, vehicle：Eight oil trucks after four before liberation
| Liquid level ratio（%） | Offset angle |
| 0 | 5.09° |
| 10 | 4.95° |
| 20 | 4.84° |
| 30 | 4.65° |
| 40 | 4.46° |
| 50 | 4.29° |
| 60 | 4.03° |
| 70 | 3.71° |
| 80 | 3.40° |
| 90 | 3.09° |
| 100 | 2.68° |
According to the experimental data of above-mentioned experiment one to experiment four, can summarize offset angle threshold value table is：
| Liquid level ratio（%） | Offset angle threshold value |
| 0 | 5.0° |
| 10 | 4.9° |
| 20 | 4.8° |
| 30 | 4.6° |
| 40 | 4.4° |
| 50 | 4.2° |
| 60 | 3.9° |
| 70 | 3.6° |
| 80 | 3.3° |
| 90 | 3.0° |
| 100 | 2.6° |
That is, the data of offset angle threshold value table selects the numerical value of the offset angle slightly below or equal to unstability critical state, so
Improve the stability of VSC.
Embodiment three
The method of work of the oil truck on the basis of above-described embodiment two.
Described oil truck is full trailor, including：Tractor and the towed vehicle for carrying oil tank, this oil tank is circular
Oil tank.
Described VSC includes：Positioned at the inertial navigation system of the center of roof, in oil tank
Liquid level detection device, the in-car electric power-assisted steering apparatus of traction, and with described inertial navigation system and Level Detection dress
Put the connected processor module for controlling electric power-assisted steering apparatus startup；
The method of work of described VSC includes：
Described inertial navigation system is applied to longitudinal acceleration a of real-time detection towed vehiclexWith lateral acceleration ay；Described
Liquid level detection device is applied to the current level height in detection oil tank；Described processor module is applied to and is added according to described longitudinal direction
Speed axWith lateral acceleration ayCalculate the real-time offset angle of towed vehicleAnd added according to current level height and oil tank
The ratio of liquid level when full, obtains current level aspect ratio, inquires about offset angle threshold value table using look-up table, current to obtain
Liquid level is than corresponding offset angle threshold value beta '；If β >=β ', start described electric power-assisted steering apparatus；
Described offset angle threshold value table is：
| Liquid level ratio（%） | Offset angle threshold value |
| 0 | 5.0° |
| 10 | 4.9° |
| 20 | 4.8° |
| 30 | 4.6° |
| 40 | 4.4° |
| 50 | 4.2° |
| 60 | 3.9° |
| 70 | 3.6° |
| 80 | 3.3° |
| 90 | 3.0° |
| 100 | 2.6° |
Obviously, above-described embodiment is only intended to clearly illustrate example of the present invention, and is not to the present invention
The restriction of embodiment.For those of ordinary skill in the field, can also be made it on the basis of the above description
The change of its multi-form or variation.There is no need to be exhaustive to all of embodiment.And these belong to this
Obvious change that bright spirit is extended out or change among still in protection scope of the present invention.
Claims (1)
1. a kind of satellite positioning module positioning electronic lock system is it is characterised in that include：
Surveillance center, for storing the default geographical coordinate of oil truck Song You destination, and the current position with the oil truck uploading
Reason coordinate compares, and judges whether to send deblocking instruction；
The car-mounted terminal main frame being connected with electronic lead sealing control unit, this car-mounted terminal main frame includes：Main MCU module, with this master
The GPRS/CDMA communication module that MCU module is connected and the satellite positioning module for obtaining current geographic coordinate；
Described electronic lead sealing control unit, including：From MCU module, the hydraulic fluid port switch actuator that controlled from MCU module by this, with
The described RF Signal module being connected from MCU module；
After oil truck arrives at, described RF Signal module reads the deblocking request of deblocking card, described car-mounted terminal
Main frame uploads current geographic coordinate by GPRS/CDMA communication module, and it is default that described Surveillance center judges whether oil truck is located at
Geographical coordinate, if being located at, sends deblocking instruction, and that is, described car-mounted terminal main frame passes through GPRS/CDMA communication module acquisition solution
After envelope instruction, control port switch actuator opens delivery valve；
Described hydraulic fluid port switch actuator includes：Gear hooks, the head being hooked by the described direct current generator from MCU module control, described gear
As the pin-and-hole cooperation of lock pin and valve shaft, the afterbody that described gear hooks is connected with the rotating shaft of direct current generator, i.e. described direct current generator
Rotated by the afterbody controlling gear to hook, band pendulum lock pin inserts or pull out pin-and-hole to lock or to solve Lock valve；The afterbody that described gear hooks
Extend first, second blend stop, described first, second blend stop spacing lock or solution Lock valve when, with the first or second stroke
Position sensor contacts to produce corresponding signal, described judges valve current state from MCU module by this signal.
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| CN201410056416.5A CN104597799B (en) | 2014-02-19 | 2014-02-19 | Oil tank truck with satellite positioning electronic lock and vehicle body stabilizing system |
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| CN201410056416.5A CN104597799B (en) | 2014-02-19 | 2014-02-19 | Oil tank truck with satellite positioning electronic lock and vehicle body stabilizing system |
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| CN104597799B true CN104597799B (en) | 2017-02-08 |
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| CN105133951A (en) * | 2015-09-30 | 2015-12-09 | 邢丞华 | Control device for oil inlet/outlet of large-sized oil tank truck |
| ITUB20154064A1 (en) * | 2015-10-02 | 2017-04-02 | Liquigas S P A | PROTECTION SYSTEM FROM AUTHORIZED ACCESS TO A VALVE OF A FUEL GAS TANK |
| CN105346434A (en) * | 2015-11-26 | 2016-02-24 | 中国重汽集团柳州运力专用汽车有限公司 | Aluminum alloy oil tank truck with electronic lead sealing safety unloading device |
| CN105549512A (en) * | 2016-01-15 | 2016-05-04 | 贵港市嘉特电子科技有限公司 | Operating state monitoring system and method for oil tank truck |
| CN106996473B (en) * | 2017-05-04 | 2019-06-04 | 北京航空航天大学 | A kind of electronic lead sealing ball-cock device for applying envelope automatically |
| CN109510854A (en) * | 2017-09-15 | 2019-03-22 | 北京万佳信科技有限公司 | A kind of novel on-vehicle intelligent lock control monitoring system and its monitoring method |
| CN113405629A (en) * | 2020-03-17 | 2021-09-17 | 同方威视技术股份有限公司 | Liquid level measuring device for oil tank truck |
| CN112228615B (en) * | 2020-09-30 | 2022-08-19 | 广西南宁市佳翼康科技有限公司 | Intelligent control valve capable of being movably positioned and provided with switch and lock |
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| US20040108938A1 (en) * | 2002-12-10 | 2004-06-10 | Entrekin David A. | Portable electronic locking system and method |
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| CN201191434Y (en) * | 2008-05-16 | 2009-02-04 | 徐晗 | Remote wireless monitoring theft-proof device |
| CN201607824U (en) * | 2009-09-24 | 2010-10-13 | 北京中科昊元科技有限公司 | Hazardous chemical article transportation management monitoring system |
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| CN202548908U (en) * | 2012-04-20 | 2012-11-21 | 山东大学 | Wireless real-time monitoring system for logistics electronic seal |
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