Summary of the invention
In view of this, the present invention is directed to the disappearance of prior art existence, it is multiple that its main purpose is to provide a kind of shock and vibrationThe sensor-based system of box-like road roller, can realize the system situation of road roller is monitored in real time, and convenient operation personnel are according to needTo change in time the duty of machine.
For achieving the above object, the present invention adopts following technical scheme:
A sensor-based system for shock and vibration compound roller, comprising can be to road roller peripheral regions pavement behaviorThe camera system of overall view monitoring, be positioned at for measuring road roller car body and peripheral regions road obstacle distance range-measurement system,The transport condition monitoring sensor-based system, right detecting with water temperature and liquid oil temperature and travel speed that turns to road roller respectivelyRoad packing detects Ya road quality-monitoring sensor-based system, carries out data operation, contrast, analysis, judge, send executionThe controller of command function, be controlled by the controller and carry out executive system and the display of corresponding actions; This camera system is passed throughGraphics processing unit is connected in controller, range-measurement system, transport condition monitoring sensor-based system He Ya road quality-monitoring sensor-based systemBe connected in controller, executive system and display by signal processor and be also connected to controller.
Preferably, described camera system comprise be installed on road roller car body front top front video camera, be arranged on press roadThe rear video camera at top, railcar body rear end, be arranged on road roller car body left end front portion left front video camera, be arranged on road roller carThe left rear camera at left end rear portion on body, be arranged on the right front camera of road roller car body right-hand member front portion and be arranged on road roller carThe right rear camera at body right-hand member rear portion.
Preferably, described front video camera, rear video camera, left front video camera, left rear camera, right front camera and right back taking the photographCamera is the thermal camera with night vision function.
Preferably, described graphics processing unit is arranged on the driver's cabin inside of road roller, and graphics processing unit for exampleThere is CAN EBI, to carry out transfer of data with other video cameras that are connected to graphics processing unit.
Preferably, described range-measurement system comprise be arranged on road roller car body front end front distance sensor, be arranged on press roadThe rear range sensor of rear end on railcar body, be arranged on road roller car body left end front portion left front range sensor, be arranged on pressureThe left back range sensor at railcar body left end rear portion, road, be arranged on right front range sensor and the peace of road roller car body right-hand member front portionBe contained in the right back range sensor at road roller car body right-hand member rear portion.
Preferably, described front distance sensor, rear range sensor, left front range sensor, left back range sensor, the right sideFront distance sensor and right back range sensor are ultrasonic distance sensor.
Preferably, described range-measurement system also comprises the extraction for the target of the image receiving being carried out to edge extractingModule, for judging barrier behaviour or the article that target is corresponding and obtaining the identification module of identifying information, identifying information passes throughSignal processor sends to controller.
Preferably, described transport condition monitoring sensor-based system comprises the angle sensor that turning to of road roller detectedTemperature sensor that device, water temperature to road roller and liquid oil temperature detect, the travel speed of road roller is detectedVelocity sensor.
Preferably, described signal processor comprises the filter circuit, amplifying circuit and the A/D change-over circuit that join successively, instituteStating A/D change-over circuit module and controller joins.
Preferably, described executive system comprise start and stop car performance element, brake hard performance element, warning performance element,Throttle performance element, speed of a motor vehicle performance element, turn to performance element, impact performance element and vibration performance element, each performance elementControlled device sends respectively start and stop car control instruction, brake hard control instruction, alarm command, throttle demand, the speed of a motor vehicleControl instruction, turn to control instruction, impulsive control instruction and vibration control instruction and move.
The present invention compared with prior art has obvious advantage and beneficial effect, particularly, and by technique schemeKnown:
First, camera system and range-measurement system effectively reduce driver and drive difficulty, prevent the road roller construction of travellingTime because driver can't see security incident appears in people or thing situation in construction area, road roller can in the state of emergency simultaneouslyWith automatic retarding or braking, neither affect driver's constructing operation, can effectively improve engineering mechanical device again and especially pressRoad machine is pressed the security of road construction backward, and possesses simple in structure, easy enforcement, protects the advantages such as reliable.
Moreover, press road quality-monitoring sensor-based system can detect in real time the compactness of bituminous paving, make the road roller can be at dropBlue or green being applicable to, works within the scope of compacting, and pitch is reached to desirable compactness.
Further, transport condition monitoring sensor-based system can be monitored the turning to of road roller, water temperature, liquid oil temperature, OK in real timeSail speed, and show on display, and in the time that detected value reaches default initial value, can automatically adjust and report to the policePrompting, convenient operation personnel change the duty of machine as required in time.
For more clearly setting forth architectural feature of the present invention and effect, come this below in conjunction with accompanying drawing and specific embodimentBright being elaborated.
Brief description of the drawings
Fig. 1 is the theory diagram sketch of the present invention's embodiment;
Fig. 2 is the theory diagram detail drawing of the present invention's embodiment.
Accompanying drawing identifier declaration:
1, camera system 2, range-measurement system
3, transport condition monitoring sensor-based system 4, pressure road quality-monitoring sensor-based system
5, controller 6, executive system
7, display 8, graphics processing unit
9, signal processor 10, front video camera
11, rear video camera 12, left front video camera
13, left rear camera 14, right front camera
15, right rear camera 16, front distance sensor
17, rear range sensor 18, left front range sensor
19, left back range sensor 20, right front range sensor
21, right back range sensor 22, extraction module
23, identification module 24, angular transducer
25, temperature sensor 26, velocity sensor
27, compactness sensor 28, filter circuit
29, amplifying circuit 30, A/D change-over circuit
31, start and stop car performance element 32, brake hard performance element
33, warning performance element 34, throttle performance element
35, speed of a motor vehicle performance element 36, turn to performance element
37, impact performance element 38, vibration performance element
39, video decoding unit 40, Artificial Control button.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, completeDescribe, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment wholely. Based onEmbodiment in the present invention, those of ordinary skill in the art are not making obtain in creative work prerequisite every otherEmbodiment, belongs to the scope of protection of the invention.
As shown in Figure 1, the present invention includes camera system 1, range-measurement system 2, transport condition monitoring sensor-based system 3, press road matterAmount monitoring sensor-based system 4, controller 5, executive system 6 and display 7. This camera system 1 is connected in by graphics processing unit 8Controller 5, range-measurement system 2, transport condition monitoring sensor-based system 3 He Ya road quality-monitoring sensor-based systems 4 are by signal processor 9Be connected in controller 5, executive system 6 and display 7 and be also connected to controller 5.
As shown in Figure 2, wherein, described camera system 1 adopts modularization, integrated design, can realize road rollerThe overall view monitoring of peripheral regions pavement behavior, facilitate driver in driver's cabin according to the picture disply on display 7, hinderHinder thing to be hidden and complete compacting constructing operation, ensureing compaction quality, reducing security incident incidence, and can reduce driver'sLabour intensity.
This camera system 1 comprise be installed on road roller car body front top front video camera 10, be arranged on road roller car bodyThe rear video camera 11 at top, rear end, be arranged on road roller car body left end front portion left front video camera 12, be arranged on road roller car bodyThe left rear camera 13 at upper left end rear portion, be arranged on the right front camera 14 of road roller car body right-hand member front portion and be arranged on road rollerThe right rear camera 15 at car body right-hand member rear portion. Described front video camera 10, rear video camera 11, left front video camera 12, left rear camera13, right front camera 14 and right rear camera 15 are the thermal camera with night vision function, even if light is darker, also can takeArrive pavement image clearly, to adapt to the scanning shoot demand at night.
Graphics processing unit 8 between each video camera and controller 5 can compress and beat the image of each camera outputBag is processed, and shows so that be sent to display 7 by processor, and graphics processing unit 8 is preferably arranged on road rollerDriver's cabin inside, and graphics processing unit 8 for example has CAN EBI, to be connected to graphics processing unit with other8 equipment carries out transfer of data.
Described range-measurement system 2 is positioned at road roller car body and peripheral regions road obstacle distance for measuring, by controller 5Whether safety of judging distance value, then make corresponding executive measure.
This range-measurement system 2 comprise be arranged on road roller car body front end front distance sensor 16, be arranged on road roller car bodyThe rear range sensor 17 of upper rear end, be arranged on road roller car body left end front portion left front range sensor 18, be arranged on and press roadThe left back range sensor 19 at railcar body left end rear portion, be arranged on right front range sensor 20 and of road roller car body right-hand member front portionBe arranged on the right back range sensor 21 at road roller car body right-hand member rear portion.
Described front distance sensor 16, rear range sensor 17, left front range sensor 18, left back range sensor 19,Right front range sensor 20 and right back range sensor 21 are ultrasonic distance sensor. Like this, road roller executing in surroundingWhen work regional work, when each range sensor detects after road roller barrier around, obstacle distance information is sent toSignal processor 9, controller 5 receives signal processor 9 surrounding obstacle distance after treatment value, compares obstacle distanceValue is not with the distance of road roller in safe range, and controller 5 can drive executive system 6 to make the reduction speed of a motor vehicle or whole equallyThe action of car braking, has further improved the working security of road roller.
For to implementing safer protection in the people of road roller surrounding construction area, range-measurement system 2 also comprises: extract mouldPiece 22, for the target of the image receiving is carried out to edge extracting, then sends to identification module 23; Identification module 23 useIn judging barrier behaviour or the article that target is corresponding and obtaining identifying information, then identifying information is passed through to signal processor 9Send to controller 5, controller 5 is according to the distance value of identifying information and barrier and road roller car body and predetermined safe distance valueComparison information generate speed regulating control signal. For example, the distance value between road roller hull back and barrier is less than defaultSafe distance value time a certain set condition under, barrier is that in people or two kinds of situations of article, controller 5 is held to the speed governing of travellingThe speed regulating control signal that row unit sends is different, wherein, in the time that barrier is people's situation, the degree of braking or reduction of speedQuicker in the situation of article compared with barrier, so that people is carried out to more reliable and secure protection.
Described transport condition monitoring sensor-based system 3 comprises respectively the turning to of road roller, water temperature, liquid oil temperature, the speed of travellingDegree waits the angular transducer 24, temperature sensor 25, the velocity sensor 26 that detect, and this turns to, water temperature, liquid oil temperature, OKSail the detected value of speed and pass to controller 5, then pass to display 7 by controller 5, and show on display 7, realize realTime demonstration and monitoring; Meanwhile, can be as required, travel speed by the numerical value judgement of display 7 to road roller, turnCarry out initialization to parameters such as, throttles; In the time that angular transducer 24 reaches default initial value, road roller stop adjusting direction orBraking; In the time that temperature sensor 25 reaches default initial value, road roller sends alarm signal; When velocity sensor 26 reaches defaultInitial value time, road roller reduction of speed or braking; By this, convenient operation personnel change the duty of machine as required in time.
Described pressure road quality-monitoring sensor-based system 4 comprises the compactness sensor 27 that road packing is detected, shouldThe detected value of packing is passed to controller 5, judges whether to reach acceptance value by controller 5, then determine whether send vibrate,The adjustment order of impact and speed.
Described signal processor 9 comprises the filter circuit 28, amplifying circuit 29 and the A/D change-over circuit 30 that join successively. InstituteStating A/D change-over circuit 30 modules and controller 5 joins. The detected value of each sensor is analog signal, by filtering, amplification and A/After D conversion, become the data signal that can be identified by controller 5.
Controller 5 is cores of system, has calculating, contrast, analysis, arbitration functions, and it is arranged on the driving of road rollerChamber interior, is connected the distance value sending to receive signal processor 9 with signal processor 9. It is total that controller 5 for example has CANLine interface, to carry out transfer of data with other equipment that are connected to controller 5. Controller 5 is according to the distance value and the control that receiveThe comparison information of the predefined safe distance value of device 5 processed generates speed regulating control signal.
Such as, engine start and stop car control instruction that controller 5 sends according to judged result, brake hard control instruction,Alarm command, throttle demand, speed of a motor vehicle control instruction, turn to control instruction, impulsive control instruction and vibration control instruction, soControl respectively corresponding start and stop car performance element 31, brake hard performance element 32, warning performance element 33, throttle fill order afterwardsUnit 34, speed of a motor vehicle performance element 35, turn to performance element 36, impact performance element 37 and vibration performance element 38 is realized corresponding movingDo. In the time that controller 5 sends alarm command, warning performance element 33 sends sound and light alarm simultaneously.
In executive system 6, each performance element is described below:
Throttle performance element 34 comprises an electric-hydraulic proportion commutation magnet valve and hydraulic cylinder, and controller 5 sends Throttle Opening Control and refers toAfter order, electromagnetic relay closure, with the power on circuitry that electric-hydraulic proportion commutation magnet valve joins, it is large that electromagnet energising changes spool apertureLittle, hydraulic cylinder changes the aperture of gas pedal.
Brake hard performance element 32 comprises a magnetic valve and brake, and brake is normally closed brake, controls thisThe electromagnetic relay of performance element is normally closed type. When controller 5 sends after brake hard instruction, electromagnetic relay disconnects, withThe down circuitry that magnetic valve joins, thus make hydraulic oil in brake at spring action fuel tank next time, realize braking.
Start and stop car performance element 31 comprises an electromagnetic relay, when controller 5 sends after enabled instruction, and electromagnetic relayClosure, connects the connecting circuit of battery and starter motor, and opens ignition switch, and starter drives by the gear ring on flywheelFlywheel rotation, thereby ato unit. When controller 5 sends after cutoff command, electromagnetic relay disconnects, and ignition switch is closedClose engine misses.
Speed of a motor vehicle performance element 35 comprises an electric ratio shaft orientation plunger variable pump, when controller 5 sends after speed of a motor vehicle instruction, and electricityMagnetic relay closure, with the power on circuitry that electric-hydraulic proportion commutation magnet valve joins, changes the size of spool aperture, makes the work of hydraulic cylinderStopper rod promotes the swash plate of variable pump, changes pump delivery thereby change swashplate angle, is that road roller implementation speed changes.
Vibration performance element 38 involving vibrations pumps (shaft orientation plunger variable pump), in the time that road roller stops, when controller 5 sendsAfter vibration instruction, electromagnetic relay closure, with the power on circuitry that magnetic valve joins, makes electric-hydraulic proportion commutation magnet valve one end electromagnetEnergising, makes spool commutation, changes the flow direction of hydraulic oil, makes the piston rod promotion swash plate of hydraulic cylinder put with variable pump power shaft verticalStraight position, thus make vibrating motor reversion, realize the change of amplitude of road roller and vibration frequency.
Turn to performance element 36 to comprise an electric-hydraulic proportion commutation magnet valve and steering cylinder. When sending, controller 5 turns to fingerAfter order, electromagnetic relay closure, the power on circuitry with electric-hydraulic proportion commutation magnet valve joins, makes valve core of the electromagnetic valve commutation, changes liquidThe flow direction of force feed, makes steering cylinder promote steering mechanism and realizes turning to of road roller.
Display 7 is arranged in the driver's cabin of road roller, is connected, for receiving picture signal and process place with controller 5Detected parameters after reason also shows. In the time of display video signal, need to process by video decoding unit 39 video decoding unitThe digital video receiving is carried out decompress(ion) by 39, and convert image/video demonstration to, then shown by display 7. This demonstrationThe advantages such as device 7 is LCD liquid crystal display, and LCD liquid crystal display 7 has simple in structure, and energy consumption is low, and occupation of land space is little, display 7 is pacifiedBe contained in applicable driver and watch the position that does not affect driver's normal operating.
In addition, on this controller 5, be also connected with an Artificial Control button 40, for input operation order artificially, as open/Stop operation.
Operation principle of the present invention is:
Operating personnel start the sensor-based system of road roller by Artificial Control button 40, the camera system 1 of road roller, travelStatus monitoring sensor-based system 3, pressure road quality-monitoring sensor-based system 4, range-measurement system 2, executive system 6 all start simultaneously. By making a video recordingSystem 1 gather vision signal, range-measurement system 2 gather distance signal, press road quality-monitoring sensor-based system 4 gather compactness signal,Transport condition monitoring sensor-based system 3 collecting temperatures, turn to and rate signal, the vision signal of collection after graphics processing unit 8,Process and shown by display 7 by video decoding unit 39; Distance signal, compactness signal and temperature signal are through signal processingAfter device 9 editing and processing, generate respectively distance value, compactness value and temperature value, then shown by display 7. Driver is according to demonstrationThe shown data of device 7 operate by controller 5 direction of road roller, simultaneously shown according to video decoding unit 39Temperature and the compactness of bituminous paving road roller is operated, thereby make compacting road surface reach necessary requirement.
In the time that road roller runs into barrier in operation process, controller 5 is according to surveyed distance value and predefined threeThe safe distance value comparison of individual grade, if the obstacle distance road roller of surveying is five meters of left and right Time Controllers, 5 control warnings are heldRow unit 33 sends alarm signal; If when barrier is behaved, alarm signal is cancelled warning automatically after personnel withdraw, press roadMachine continues operation; In the time that surveyed obstacle distance road roller is three meters of left and right, controller 5 makes by regulation speed performance element 35Road roller slows down; If when the obstacle distance of surveying further reduces lower than two meters, controller 5 is carried out by controlling brake hardUnit 32 makes road roller brake hard.
In the time that the angular transducer 24 of road roller detects that turn signal reaches default initial value, send life by controller 5Order is turned to performance element 36 or start and stop car performance element 31, makes road roller stop adjusting direction or braking; Work as temperature sensor25 detect when water temperature, oil temperature reach default initial value, and controller 5 performance element 33 that makes to report to the police sends alarm signal; Work as speedWhen sensor 26 reaches the default initial value of the speed of a motor vehicle, controller 5 give an order to throttle performance element 34, speed of a motor vehicle performance element 35 orStart and stop car performance element 31, makes road roller reduction of speed or braking, and by this, convenient operation personnel change the work of machine as required in timeMake state.
In the time that the compactness sensor 27 of road roller detects that compactness does not meet setting value, by controller 5 Chu Shiya roadsThe vibration performance element 38 of machine and impact performance element 37 vibrate and impact.
In sum, design focal point of the present invention is: first, camera system 1 and range-measurement system 2 effectively reduce drivesThe person of sailing is driven difficulty, prevents that road roller from travelling while construction because driver can't see people or safe thing appears in thing in construction areaTherefore situation, simultaneously road roller can automatic retarding or braking in the state of emergency, neither affects driver's constructing operation, again canEffectively improve the engineering mechanical device security that especially road roller presses road to construct backward, and possess simple in structure, easily realExecute, protect the advantages such as reliable.
Moreover, press road quality-monitoring sensor-based system 4 can detect in real time the compactness of bituminous paving, make the road roller can be at dropBlue or green being applicable to, works within the scope of compacting, and pitch is reached to desirable compactness.
Further, transport condition monitoring sensor-based system 3 can be monitored the turning to of road roller, water temperature, liquid oil temperature, OK in real timeSail speed, and show on display 7, and in the time that detected value reaches default initial value, can automatically adjust and reportAlert prompting, convenient operation personnel change the duty of machine as required in time.
The above, be only preferred embodiment of the present invention, not technical scope of the present invention is imposed any restrictions,Therefore any trickle amendment, equivalent variations and modification that every foundation technical spirit of the present invention is done above embodiment, all stillBelong in the scope of technical solution of the present invention.