CN108394455A - A kind of engineering machinery hydraulic steering control system - Google Patents

A kind of engineering machinery hydraulic steering control system Download PDF

Info

Publication number
CN108394455A
CN108394455A CN201810162199.6A CN201810162199A CN108394455A CN 108394455 A CN108394455 A CN 108394455A CN 201810162199 A CN201810162199 A CN 201810162199A CN 108394455 A CN108394455 A CN 108394455A
Authority
CN
China
Prior art keywords
resistance
amplifier
connect
module
triode
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201810162199.6A
Other languages
Chinese (zh)
Other versions
CN108394455B (en
Inventor
师平
白亚琼
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xian Aeronautical Polytechnic Institute
Original Assignee
Xian Aeronautical Polytechnic Institute
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xian Aeronautical Polytechnic Institute filed Critical Xian Aeronautical Polytechnic Institute
Priority to CN201810162199.6A priority Critical patent/CN108394455B/en
Publication of CN108394455A publication Critical patent/CN108394455A/en
Application granted granted Critical
Publication of CN108394455B publication Critical patent/CN108394455B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D5/00Power-assisted or power-driven steering
    • B62D5/06Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D6/00Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits

Abstract

The invention discloses a kind of engineering machinery hydraulic steering control systems, including speed probe and Rotating speed measring module, speed probe is electrically connected with Rotating speed measring module, Rotating speed measring module includes that sequentially connected signal acquisition module, signal processing module, signal output module and alarm module, speed probe are electrically connected with signal acquisition module.The present invention can reliably detect the signal of speed probe by each module, realizes the accurate detection to system rotating speed, but also can carry out alarm, improves the reliability of system;Road ahead situation is perceived instead of using person using machine vision, further improves the safety of whole system.

Description

A kind of engineering machinery hydraulic steering control system
Technical field
The invention belongs to machinery hydraulic system technical fields, and in particular to a kind of engineering machinery hydraulic steering control system.
Technical background
In existing engineering machinery hydraulic steering control system, when the rotating speed to steering is detected, only Its rotating speed is detected by sensor, there is no reliable treatments etc. are carried out to signal, to affect to Rotating speed measring Accuracy, but also lack effective alarm measure, reduce the reliability of system.
Invention content
The object of the present invention is to provide a kind of engineering machinery hydraulic steering control systems, solve the liquid of existing engineering machinery Pressure system lacks the problem of carrying out reliable treatments to signal.
The technical solution adopted in the present invention is a kind of engineering machinery hydraulic steering control system, including speed probe With Rotating speed measring module, speed probe is electrically connected with Rotating speed measring module, and Rotating speed measring module includes sequentially connected signal Acquisition module, signal processing module, signal output module and alarm module, speed probe are electrically connected with signal acquisition module It connects.
The features of the present invention also characterized in that
Signal acquisition module includes signal acquisition circuit, and signal acquisition circuit includes first resistor R1, second resistance R2, Three resistance R3, the 4th resistance R4, the 5th resistance R5, the first capacitance C1, the second capacitance C2, the first diode VD1 and the first amplifier U1;The in-phase input end of first amplifier U1 is grounded by 3rd resistor R3, and passes through second resistance R2's and the first diode VD1 Cathode connects;The anode of first diode VD1 is connect with first resistor R1, and the cathode of the first diode VD1 passes through the first capacitance C1 is grounded;The inverting input of first amplifier U1 is connect by the 4th resistance R4 with the output end of the first amplifier U1, the first amplifier The output end of U1 is connect with the series circuit of the second capacitance C2 and the 5th resistance R5 compositions.
Signal processing module includes signal processing circuit, and signal processing circuit includes the second diode VD2, the second amplifier U2, the 6th resistance R6, third capacitance C3 and the 7th resistance R7;The in-phase input end of second amplifier U2 passes through the 5th resistance R5 and The series circuit of two capacitance C2 compositions is connect with the output end of the first amplifier U1, the in-phase input end and the two or two of the second amplifier U2 The cathode of pole pipe VD2 connects, and the inverting input of the second amplifier U2 is connect with the anode of the second diode VD2, and the second amplifier The inverting input of U2 is connected by the output end of the parallel circuit and the second amplifier U2 of the 6th resistance R6 and third capacitance C3 compositions It connects, the output end of the second amplifier U2 is connect with the 7th resistance R7.
Signal output module includes signal output apparatus, and signal output apparatus includes third amplifier U3, the 8th resistance R8, Nine resistance R9, the tenth resistance R10, eleventh resistor R11, twelfth resistor R12, the first triode VT1, the second triode VT2 With the 4th capacitance C4;The in-phase input end of third amplifier U3 is connect by the 7th resistance R7 with the output end of the second amplifier U2, and The in-phase input end of third amplifier U3 is connect by the 8th resistance R8 with the output end of third amplifier U3, the output of third amplifier U3 End is connect by the 9th resistance R9 with the base stage of the second triode VT2;The emitter of second triode VT2 is grounded, the two or three pole The collector of pipe VT2 passes through the external 9V DC voltage power supplies of twelfth resistor R12;The inverting input of third amplifier U3 passes through Ten resistance R10 are connect with the emitter of the first triode VT1, and the emitter of the first triode VT1 is grounded by the 4th capacitance C4, And first the emitter of triode VT1 pass through the external 9V DC voltage power supplies of eleventh resistor R11, the base of the first triode VT1 Pole is connect with the collector of the first triode VT1, and the base earth of the first triode VT1, the collector of the second triode VT2 It is electrically connected with alarm module 5.
Alarm module includes alarm circuit, and alarm circuit includes third diode VD3, four high guaily unit U4, buzzer BL, thirteenth resistor R13, the 14th resistance R14, the 15th resistance R15, the 16th resistance R16 and the 5th capacitance C5;The inverting input of four high guaily unit U4 is connect by the 14th resistance R14 with the cathode of third diode VD3;Three or two pole The anode of pipe VD3 is connect with the collector of the second triode VT2, and the cathode of third diode VD3 passes through the 5th capacitance C5 ground connection; The in-phase input end of four high guaily unit U4 is connect by the 15th resistance R15 with the output end of four high guaily unit U4, four high guaily unit U4's Output end is connect by the 16th resistance R16 with one end of buzzer BL, the other end ground connection of buzzer BL.
First amplifier U1, the second amplifier U2, third amplifier U3 and four high guaily unit U4 model be LM2900.
The invention has the advantages that can reliably be detected to the signal of speed probe by each module, realize Accurate detection to system rotating speed, but also alarm can be carried out, improve the reliability of system;Utilize machine vision Road ahead situation is perceived instead of using person, further improves the safety of whole system.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of engineering machinery hydraulic steering control system of the present invention;
Fig. 2 is a kind of Rotating speed measring module circuit schematic of engineering machinery hydraulic steering control system of the present invention.
In figure, 1. speed probes, 2. signal acquisition modules, 3. signal processing modules, 4. signal output modules, 5. alarms Reminding module;
R1. first resistor, R2. second resistances, R3. 3rd resistors, the 4th resistance of R4., the 5th resistance of R5., the 6th electricity of R6. Resistance, the 7th resistance of R7., the 8th resistance of R8., the 9th resistance of R9., the tenth resistance of R10., R11. eleventh resistors, R12. the 12nd Resistance, R13. thirteenth resistors, the 14th resistance of R14., the 15th resistance of R15., the 16th resistance of R16., the first capacitances of C1., C2. the second capacitance, C3. third capacitances, the 4th capacitances of C4., the 5th capacitances of C5., the first diodes of VD1., the two or two poles VD2. Pipe, VD3. third diodes, the first amplifiers of U1., the second amplifiers of U2., U3. third amplifiers, U4. four high guaily units, VT1. the one or three Pole pipe, the second triodes of VT2., BL. buzzers.
Specific implementation mode
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
A kind of engineering machinery hydraulic steering control system of the present invention as Figure 1-Figure 2, including speed probe 1 and turns Fast detection module, the speed probe 1 are electrically connected with Rotating speed measring module, and the Rotating speed measring module includes sequentially connected Signal acquisition module 2, signal processing module 3, signal output module 4 and alarm module 5, the speed probe 1 and letter Number acquisition module 2 is electrically connected.
Signal acquisition module 2 include signal acquisition circuit, signal acquisition circuit include first resistor R1, second resistance R2, 3rd resistor R3, the 4th resistance R4, the 5th resistance R5, the first capacitance C1, the second capacitance C2, the fortune of the first diode VD1 and first Put U1;The in-phase input end of first amplifier U1 is grounded by 3rd resistor R3, and passes through second resistance R2 and the first diode VD1 Cathode connection;The anode of first diode VD1 is connect with first resistor R1, and the cathode of the first diode VD1 passes through the first electricity Hold C1 ground connection;The inverting input of first amplifier U1 is connect by the 4th resistance R4 with the output end of the first amplifier U1, the first fortune The output end for putting U1 is connect with the series circuit of the second capacitance C2 and the 5th resistance R5 compositions.
Signal processing module 3 includes signal processing circuit, and signal processing circuit includes the second diode VD2, the second amplifier U2, the 6th resistance R6, third capacitance C3 and the 7th resistance R7;The in-phase input end of second amplifier U2 passes through the 5th resistance R5 and The series circuit of two capacitance C2 compositions is connect with the output end of the first amplifier U1, the in-phase input end and the two or two of the second amplifier U2 The cathode of pole pipe VD2 connects, and the inverting input of the second amplifier U2 is connect with the anode of the second diode VD2, and the second amplifier The inverting input of U2 is connected by the output end of the parallel circuit and the second amplifier U2 of the 6th resistance R6 and third capacitance C3 compositions It connects, the output end of the second amplifier U2 is connect with the 7th resistance R7.
Signal output module 4 include signal output apparatus, signal output apparatus include third amplifier U3, the 8th resistance R8, 9th resistance R9, the tenth resistance R10, eleventh resistor R11, twelfth resistor R12, the first triode VT1, the second triode VT2 and the 4th capacitance C4;The in-phase input end of third amplifier U3 is connect by the 7th resistance R7 with the output end of the second amplifier U2, And the in-phase input end of third amplifier U3 is connect by the 8th resistance R8 with the output end of third amplifier U3, third amplifier U3's is defeated Outlet is connect by the 9th resistance R9 with the base stage of the second triode VT2;The emitter of second triode VT2 is grounded, and the two or three The collector of pole pipe VT2 passes through the external 9V DC voltage power supplies of twelfth resistor R12;The inverting input of third amplifier U3 passes through Tenth resistance R10 is connect with the emitter of the first triode VT1, and the emitter of the first triode VT1 is connect by the 4th capacitance C4 Ground, and the emitter of the first triode VT1 is by the external 9V DC voltage power supplies of eleventh resistor R11, the first triode VT1's Base stage is connect with the collector of the first triode VT1, and the base earth of the first triode VT1, the current collection of the second triode VT2 Pole is electrically connected with alarm module 5.
Alarm module 5 includes alarm circuit, and alarm circuit includes third diode VD3, four high guaily unit U4, buzzer BL, thirteenth resistor R13, the 14th resistance R14, the 15th resistance R15, the 16th resistance R16 and the 5th capacitance C5;The inverting input of four high guaily unit U4 is connect by the 14th resistance R14 with the cathode of third diode VD3;Three or two pole The anode of pipe VD3 is connect with the collector of the second triode VT2, and the cathode of third diode VD3 passes through the 5th capacitance C5 ground connection; The in-phase input end of four high guaily unit U4 is connect by the 15th resistance R15 with the output end of four high guaily unit U4, four high guaily unit U4's Output end is connect by the 16th resistance R16 with one end of buzzer BL, the other end ground connection of buzzer BL.
First amplifier U1, the second amplifier U2, third amplifier U3 and four high guaily unit U4 model be LM2900.
Further include a camera in engineering machinery, camera be sequentially connected video processor, turn around parameters computing unit and Touch screen.Camera is mounted on the central axes of the front end of engineering machinery, is used for surrounding's video counts of gathering project machinery front end According to, and collected data are sent to video processor.Video processor, being used for will be in the collected video data of camera Each frame image be converted into gray scale.Turn around parameters computing unit carries out background modeling, the company of taking in video image by averaging method Continuous N frames, calculate grey scale pixel value of the average value of this N frame image pixel gray level value as background image, establish under different situations The steering of hydraulic device and the big mini Mod of corner;For gray level image to be carried out difference operation with corresponding modeling background, and Differentiated image is filtered, noise is removed, using predetermined threshold value, contrasting detection is carried out to differentiated image, It determines the steering of hydraulic device and the size of corner and the operational mode of corresponding steering mechanism, and the data of gained is sent It is shown to touch screen.Touch screen is connected with engineering machinery steering mechanism, the steering and corner for carrying out hydraulic device The display of the operational mode of data and corresponding steering mechanism detected by size, Rotating speed measring module, and for controlling The operation of steering mechanism.
A kind of engineering machinery hydraulic steering control system of the present invention, signal acquisition module 2 are used for the letter to speed probe 1 It number is acquired;Signal processing module 3 is used for being transmitted processing to signal;Signal output module 4 is compared signal defeated Go out;Alarm module 5 is used for carrying out alarm.
In signal acquisition module 2, signal is filtered by the first capacitance C1, is then passed through with the first amplifier U1 Based on amplifying circuit, signal is amplified, signal can reliably be acquired.In signal processing module 3, by the two or two Pole pipe VD2 carries out amplitude limiting processing, then passes through and follows circuit to carry out following transmission based on the second amplifier U2.Mould is exported in signal It in block 4, enters in third amplifier U3, carries out signal comparison, then control the second triode VT2 and carried to carry out control alarm Show.In alarm module 5, audio signal transmission gives four high guaily unit U4, is exported by four high guaily unit U4 and gives buzzer BL, into Row alarm.
The signal of speed probe 1 can reliably be detected, is realized to the accurate of system rotating speed by each module Detection, but also alarm can be carried out, improve the reliability of system.

Claims (9)

1. a kind of engineering machinery hydraulic steering control system, which is characterized in that including speed probe (1) and Rotating speed measring mould Block, the speed probe (1) are electrically connected with Rotating speed measring module, and the Rotating speed measring module includes that sequentially connected signal is adopted Collect module (2), signal processing module (3), signal output module (4) and alarm module (5), the speed probe (1) It is electrically connected with signal acquisition module (2).
2. a kind of engineering machinery hydraulic steering control system according to claim 1, which is characterized in that the signal acquisition Module (2) includes signal acquisition circuit, and signal acquisition circuit includes first resistor R1, second resistance R2,3rd resistor R3, the 4th Resistance R4, the 5th resistance R5, the first capacitance C1, the second capacitance C2, the first diode VD1 and the first amplifier U1;First amplifier U1 In-phase input end be grounded by 3rd resistor R3, and connect with the cathode of the first diode VD1 by second resistance R2;First The anode of diode VD1 is connect with first resistor R1, and the cathode of the first diode VD1 passes through the first capacitance C1 ground connection;First fortune The inverting input for putting U1 is connect by the 4th resistance R4 with the output end of the first amplifier U1, the output end of the first amplifier U1 and The series circuit connection of two capacitance C2 and the 5th resistance R5 compositions.
3. a kind of engineering machinery hydraulic steering control system according to claim 1, which is characterized in that the signal processing Module (3) includes signal processing circuit, signal processing circuit include the second diode VD2, the second amplifier U2, the 6th resistance R6, Third capacitance C3 and the 7th resistance R7;The in-phase input end of second amplifier U2 is connect with the cathode of the second diode VD2, the second fortune The inverting input for putting U2 is connect with the anode of the second diode VD2, and the inverting input of the second amplifier U2 passes through the 6th electricity The parallel circuit of resistance R6 and third capacitance C3 compositions is connect with the output end of the second amplifier U2, the output end of the second amplifier U2 and the Seven resistance R7 connections.
4. a kind of engineering machinery hydraulic steering control system according to claim 1, which is characterized in that the signal output Module (4) includes signal output apparatus, and signal output apparatus includes third amplifier U3, the 8th resistance R8, the 9th resistance R9, the tenth Resistance R10, eleventh resistor R11, twelfth resistor R12, the first triode VT1, the second triode VT2 and the 4th capacitance C4; The in-phase input end of third amplifier U3 is connect by the 8th resistance R8 with the output end of third amplifier U3, the output of third amplifier U3 End is connect by the 9th resistance R9 with the base stage of the second triode VT2;The emitter of second triode VT2 is grounded, the two or three pole The collector of pipe VT2 passes through the external 9V DC voltage power supplies of twelfth resistor R12;The inverting input of third amplifier U3 passes through Ten resistance R10 are connect with the emitter of the first triode VT1, and the emitter of the first triode VT1 is grounded by the 4th capacitance C4, And first the emitter of triode VT1 pass through the external 9V DC voltage power supplies of eleventh resistor R11, the base of the first triode VT1 Pole is connect with the collector of the first triode VT1, and the base earth of the first triode VT1, the collector of the second triode VT2 It is electrically connected with alarm module 5.
5. a kind of engineering machinery hydraulic steering control system according to claim 1, which is characterized in that the alarm Module (5) includes alarm circuit, and alarm circuit includes third diode VD3, four high guaily unit U4, buzzer BL, 13 resistance R13, the 14th resistance R14, the 15th resistance R15, the 16th resistance R16 and the 5th capacitance C5;Four high guaily unit U4 Inverting input connect with the cathode of third diode VD3 by the 14th resistance R14;The cathode of third diode VD3 is logical Cross the 5th capacitance C5 ground connection;The output end that the in-phase input end of four high guaily unit U4 passes through the 15th resistance R15 and four high guaily unit U4 Connection, the output end of four high guaily unit U4 are connect by the 16th resistance R16 with one end of buzzer BL, the other end of buzzer BL Ground connection.
6. a kind of engineering machinery hydraulic steering control system according to claim 2 and 3, which is characterized in that described second The output that the in-phase input end of amplifier U2 passes through the 5th resistance R5 and the series circuit and the first amplifier U1 of the second capacitance C2 compositions End connection.
7. a kind of engineering machinery hydraulic steering control system according to claim 3 and 4, which is characterized in that the third The in-phase input end of amplifier U3 is connect by the 7th resistance R7 with the output end of the second amplifier U2.
8. a kind of engineering machinery hydraulic steering control system according to claim 4 and 5, which is characterized in that the third The anode of diode VD3 is connect with the collector of the second triode VT2.
9. a kind of engineering machinery hydraulic steering control system according to claim 2-5, which is characterized in that first fortune Put U1, the second amplifier U2, third amplifier U3 and four high guaily unit U4 model be LM2900.
CN201810162199.6A 2018-02-27 2018-02-27 Hydraulic steering control system for engineering machinery Active CN108394455B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810162199.6A CN108394455B (en) 2018-02-27 2018-02-27 Hydraulic steering control system for engineering machinery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810162199.6A CN108394455B (en) 2018-02-27 2018-02-27 Hydraulic steering control system for engineering machinery

Publications (2)

Publication Number Publication Date
CN108394455A true CN108394455A (en) 2018-08-14
CN108394455B CN108394455B (en) 2020-09-08

Family

ID=63096563

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810162199.6A Active CN108394455B (en) 2018-02-27 2018-02-27 Hydraulic steering control system for engineering machinery

Country Status (1)

Country Link
CN (1) CN108394455B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130013155A1 (en) * 2011-07-10 2013-01-10 Torabi Mirzaee Mohammad Ali Safety steering system for automobiles
CN104691615A (en) * 2013-12-06 2015-06-10 刘扬 Rice transplanter steering automatic control system
CN105015410A (en) * 2015-06-29 2015-11-04 韦义乐 Parking braking speech alarming system for automobile
CN105501106A (en) * 2015-12-18 2016-04-20 重庆工商职业学院 Automobile steering system and vehicle adopting same
CN106023647A (en) * 2016-05-05 2016-10-12 苏州京坤达汽车电子科技有限公司 Driving habit and state self-adaptive vehicle safety distance early-warning control device
CN107345857A (en) * 2017-06-09 2017-11-14 昆明理工大学 A kind of electro spindle condition monitoring and failure diagnosis system and its monitoring, diagnosing method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130013155A1 (en) * 2011-07-10 2013-01-10 Torabi Mirzaee Mohammad Ali Safety steering system for automobiles
CN104691615A (en) * 2013-12-06 2015-06-10 刘扬 Rice transplanter steering automatic control system
CN105015410A (en) * 2015-06-29 2015-11-04 韦义乐 Parking braking speech alarming system for automobile
CN105501106A (en) * 2015-12-18 2016-04-20 重庆工商职业学院 Automobile steering system and vehicle adopting same
CN106023647A (en) * 2016-05-05 2016-10-12 苏州京坤达汽车电子科技有限公司 Driving habit and state self-adaptive vehicle safety distance early-warning control device
CN107345857A (en) * 2017-06-09 2017-11-14 昆明理工大学 A kind of electro spindle condition monitoring and failure diagnosis system and its monitoring, diagnosing method

Also Published As

Publication number Publication date
CN108394455B (en) 2020-09-08

Similar Documents

Publication Publication Date Title
CN103886715B (en) A kind of tumble detection method for human body
CN102496232B (en) Transmission facility monitoring method and system
CN201697607U (en) Vehicle attitude warning system
CN103310192B (en) A kind of motor behavior recognition methods based on single-axis acceleration sensors
CN204274428U (en) Based on the wearable human body various dimensions Prevention of fall equipment of health control
CN203781553U (en) Embedded system based elevator security monitoring device
CN103892816A (en) Blood pressure measuring instrument
CN104864909A (en) Road surface pothole detection device based on vehicle-mounted binocular vision
CN202974666U (en) Virtual instrument detection device for automobile engine
CN108394455A (en) A kind of engineering machinery hydraulic steering control system
CN104089735A (en) Bridge pier impact force monitoring device
CN103344434A (en) LabVIEW-based automotive engine parameter detection system
CN104159080B (en) Aerial cableway falling-off detection system based on Hough transformation, and aerial cableway falling-off detection method based on Hough transformation
CN201322753Y (en) Rotating-speed measuring device
CN204856659U (en) Flow of personnel volume measuring device
CN103529241A (en) Interface circuit for acceleration sensor
CN205861786U (en) Winding in Power Transformer thrust characteristic diagnostic system
CN205644584U (en) Deep sea well drilling gas is invaded and is detected processing circuit
CN202915963U (en) Electromagnetic flowmeter blank pipe detection circuit
CN204575122U (en) Based on the forest environment monitoring system of wireless network
CN204313814U (en) A kind of cable sag detection system
CN202837983U (en) Drilling well parameter handset monitoring system based on 3G network
CN203519640U (en) Acceleration sensor interface circuit
CN209248014U (en) A kind of electronic velocity measuring system
CN103654734A (en) Medical detection system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant