CN105109551A - Storage vehicle steering wheel angle display instrument with hourmeter - Google Patents
Storage vehicle steering wheel angle display instrument with hourmeter Download PDFInfo
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- CN105109551A CN105109551A CN201510536200.3A CN201510536200A CN105109551A CN 105109551 A CN105109551 A CN 105109551A CN 201510536200 A CN201510536200 A CN 201510536200A CN 105109551 A CN105109551 A CN 105109551A
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Abstract
The invention discloses a storage vehicle steering wheel angle display instrument with a hourmeter. An incremental photoelectric encoder, a proximity switch, a forward switch and a reverse switch are arranged on a storage vehicle; and the storage vehicle steering wheel angle display instrument is characterized in that the angle display instrument comprises a dial switch, a filtering and counting circuit, a microprocessor, a power supply conversion module and a display module. According to the storage vehicle steering wheel angle display instrument with the hourmeter, disclosed by the invention, the deflection angle of a steering wheel can be accurately and visually displayed and the working time of the instrument can be recorded and displayed; therefore, a problem that the position of the steering wheel cannot be observed and predicated during the steering of the storage vehicle is solved.
Description
Technical field
The present invention relates to the vehicle fitting of storage car, be specifically related to the storage car steering wheel angle display instrument of a kind of band hour meter.
Background technology
Storage car (i.e. vehicle maneuvering safety in plant) operating environment uses between factory floor, storage, shelf, operating environment is the space of more complicated and narrow and small passageway substantially, just there is high safe operation risk in this, safety misadventures such as easily colliding in driving process, impact, direction sideslip, accident are tumbled, Minor Accident causes vehicle and material to damage, and serious conditions can cause casualties accident.Different from general-utility car, during driving, operator is difficult to the position of observation and anticipation storage car wheel flutter, causes very large difficulty and risk to operator.
The existing direction display of storage car is integrated on electricity meter, is communicated with controller by CAN, obtains corresponding angle numerical information.When twirl handwheel (being equivalent to bearing circle), the angle of change numeral is just presented on the liquid crystal display of electricity meter, and once the handwheel that stops operating, electricity meter will only to be stored in a warehouse the remaining electricity of car in display, and not angles of display numerical information.Such steering wheel angle display mode obviously in real time to the steered wheel angle that operator provides, also not intuitively, cannot bring much inconvenience to operator.
Summary of the invention
The present invention is the weak point existed to overcome prior art, there is provided that a kind of precision is higher, a storage car steering wheel angle display instrument for real-time well band hour meter intuitively again, to the deflection angle of the accurate and visual display wheel flutter of energy, and can record and the work-hours of display instrument, thus solve when storage car turns to and cannot observe the problem with anticipation steer wheel position.
The present invention is that technical solution problem adopts following technical scheme:
The corner display instrument of the storage car wheel flutter of a kind of band of the present invention hour meter, described storage car is configured with incremental optical-electricity encoder, proximity switch, advance switch and retreats switch; Be characterized in that described corner display instrument comprises: plucking number sign switch, filtering counting circuit, microprocessor, power transfer module and display module;
Described microprocessor carries out timing process by its timer internal after power-up initializing, obtains time data stored in internal storage; Receive the calibrating signal of described proximity switch transmission simultaneously and the counting chip in described filtering counting circuit is resetted;
Described filtering counting circuit obtains the impulse singla of described incremental optical-electricity encoder and carries out filtering and counting process, obtains count value and passes to described microprocessor;
Described microprocessor receives described count value, and described advance switch and retreat the signal that moves forward and backward that sends respectively of switch and process, and obtains the advancing angle information of described wheel flutter or retreats angle information;
Described microprocessor controls described display module to the advancing angle information of described time data or described wheel flutter or retreat angle information and carry out selections and show according to the on-off signal that described plucking number sign switch provides;
Described power transfer module is used for providing working power for described microprocessor.
The feature of the corner display instrument of the storage car wheel flutter of band of the present invention hour meter is also:
Described display module is a circular display panel comprising angle index and binary temporal scale; Described angle index symmetry is divided into advancing angle scale and retreats angle index, and described advancing angle scale is lattice with every 15 °, and the position of each lattice is provided with a LED, 0 ° to 90 ° and 0 ° to-90 ° each 6 lattice that are evenly divided into is arranged; Described laggard angle index is also lattice with every 15 °, 0 ° to 90 ° and 0 ° to-90 ° each 6 lattice that are evenly divided into is arranged, thus is evenly divided into 24 lattice by one week of described circular display panel;
From 24 lattice described circular display panel, select continuous print 16 lattice as the two scale notation display lattice of described time data;
Described circular display panel also comprises power on light, for showing the power on signal of described microprocessor;
Described circular display panel also comprises malfunction coefficient lamp, for showing breakdown signal when described microprocessor does not collect described calibrating signal.
Compared with the prior art, beneficial effect of the present invention is embodied in:
1, display instrument of the present invention designs for showing wheel flutter deflection situation specially, after storage car starts, car is in complicated operating environment and can shows the corner of wheel flutter under there is many potential safety hazard situations intuitively and accurately, and real-time is good, effective solution safe driving problem, to driver one direction determining intuitively, improve work efficiency and safety, simultaneously can and show the writing task time.
2, display instrument of the present invention mainly utilizes the original device of storage car, and the original signal of acquisition process, does not additionally increase signal source targetedly, which enhances the stability of display instrument itself, it also avoid the interference to storage truck system.
3, instrument of the present invention is counted by special quadrature decoder chip (HCTL-2016) pulse to coder, improve the accuracy of step-by-step counting, thus the referential that angle is shown is stronger.
4, display instrument of the present invention can also record and display instrument work-hours effectively, during by microprocessor internal timer, be recorded in the respective sectors of inner EEPROM, after power down, data can not be lost, and by switching toggle switch display work-hours, the work life for assessment instrument has some reference value.
Accompanying drawing explanation
Fig. 1 is present system composition structural representation;
Fig. 2 is the mounting means figure of inventive encoder;
Fig. 3 is that the present invention advances corner display figure;
Fig. 4 is that the present invention retreats corner display figure;
Fig. 5 is work-hours display figure of the present invention;
Fig. 6 is present system workflow;
Number in the figure: 1 big gear wheel; 2 coders; 3 miniature gearss; 4 wheel flutters; 5 proximity switches.
Detailed description of the invention
As shown in Figure 1, the storage car in the present embodiment be configured with incremental optical-electricity encoder 2, proximity switch 5, advance switch and retreat switch; And the corner display instrument of the storage car wheel flutter of a kind of band hour meter, comprising: plucking number sign switch, filtering counting circuit, microprocessor, power transfer module and display module; When car of storing in a warehouse turns to, the signal of incremental optical-electricity encoder 2 is through filtering counting circuit, transfer to microprocessor, and the corner of wheel flutter 4 is judged according to the pulse that incremental optical-electricity encoder 2 exports, and light corresponding LED on display module in conjunction with forward-reverse signal, thus realize the display of steering wheel angle.
Specifically, as shown in Figure 2, the mode that incremental encoder 2 is connected with gear with wheel flutter 4 links, and when wheel flutter 4 rotates, coder 2 exports pulse, is the Main Basis determining corner information; When the direction travelled is different, the low and high level that two signal wire (SW)s of being drawn by advance switch and retrogressing switch export is also different; When wheel flutter 4 goes to middle (zero-bit), can there is saltus step in the output signal of proximity switch 5, turns to zero adjustment when being positioned at dead ahead when starting for car of storing in a warehouse and in travelling.
Microprocessor in this example selects model to be the micro controller system of STC12C5A60S2, after storage car starts, the workflow of the aobvious instrument of wheel as shown in Figure 6, carries out timing process by its timer internal after power-up initializing, obtains time data and stored in internal storage; Store in a warehouse car after automatic calibration reseting procedure, and microprocessor receives the calibrating signal of proximity switch 5 transmission and resets to the counting chip in filtering counting circuit simultaneously;
Filtering counting circuit obtains the impulse singla of incremental optical-electricity encoder 2 and carries out filtering and counting process, obtains count value and passes to microprocessor; Specifically, the HCTL-2016 chip of A, B phase signals in filtering counting circuit of incremental encoder 2 first carries out filtering process, when wheel flutter 4 forwards middle (zero degree) to, trigger proximity switch 5, export calibrating signal and carry out zero adjustment to microprocessor, carry out plus-minus counting again, obtain microprocessor according to the pulse value relative to zero-bit, finally corresponding pulse value information is sent to microprocessor by the P3 mouth of microprocessor.
Microprocessor count pick up value, and the signal that moves forward and backward of advance switch and the transmission of retrogressing switch processes, and obtains the advancing angle information of wheel flutter 4 or retreats angle information;
The on-off signal that microprocessor provides according to plucking number sign switch controls display module to the advancing angle information of time data or wheel flutter 4 or retreat angle information and carry out selections and show;
As shown in Figure 3, display module is a circular display panel comprising angle index and binary temporal scale; Angle index symmetry is divided into advancing angle scale and retreats angle index, and advancing angle scale is lattice with every 15 °, the position of each lattice is LED, 0 ° to 90 ° and 0 ° to-90 ° each 6 lattice that are evenly divided into is arranged; Laggard angle index is also lattice with every 15 °, 0 ° to 90 ° and 0 ° to-90 ° each 6 lattice that are evenly divided into is arranged, thus is evenly divided into 24 lattice by one of circular display panel week;
From 24 lattice circular display panel, select continuous print 16 lattice as the two scale notation display lattice of time data; 2 are expressed as from initial little lattice
0hour, little lattice thereafter represent 2 successively
1hour, 2
2individual hour, 2
3individual hour ... 2
14hour and 2
15hour, namely added up by the hours that all little lattice be lit represent is the hours that display instrument has worked.
LED on display module dial plate is connected with P2 mouth with P0, P1 of microprocessor, utilize the LED display wheel flutter 4 on dial plate location information and or the work-hours of table, and toggle switch, the switching of wheel flutter 4 corner and work-hours hours two kinds of patterns is shown for instrument.
Circular display panel also comprises power on light, for showing the power on signal of microprocessor;
Circular display panel also comprises malfunction coefficient lamp, for showing breakdown signal when microprocessor does not collect calibrating signal.
Proximity switch signal (Z_IN), code device signal (CHA, CHB), advance switch and retrogressing on-off signal (F_IN, B_IN) and power supply signal (VIN+) are all drawn from storage car and are inputed to instrument through 8 needle interfaces.
When toggle switch is allocated to ON, display module carries out wheel flutter 4 position display, and microprocessor is according to the pulse count obtained from HCTL-2016, and output signal is to light the LED of relevant position, realizes the display of wheel flutter 4 location information and failure message.
If the number of pulses that microprocessor obtains is between 2500 ~ 3500, the traveling and storage car advances, then light the LED at right 45 degree of places, as shown in Figure 3;
If now gear shift reverse travel, display as shown in Figure 4.When wheel flutter 4 stops deflecting, LED state remains unchanged.Wheel flutter 4 is motionless and travel direction (gear) changes time, current LED is extinguished, and can be illuminated to and be positioned at same diametrically another LED.
When toggle switch is allocated to OFF, microprocessor reads the data storing work-hours in EEPROM, control display module by position assignment and show the hours of taking turns the aobvious work-hours shown in binary mode, instrument shows at most (2^16-1) individual hour, namely 65535 hours.Certain lamp is bright, represents 1, and lamp does not work, and represents 0, and namely everybody that instrument is lighted added up is the hours of work-hours.As shown in Figure 5, the binary number of instrument display is: 0000010011011011 instrument shows work-hours and is:
2^0+2^1+2^3+2^4+2^6+2^7+2^10=1243 (hour)
Power transfer module is used for providing working power for microprocessor, power transfer module, utilize DC-DC chip MP1584EN by from the storage car 24V power voltage step down of drawing to 5V to microprocessor power supply, and input to microprocessor after electric resistance partial pressure is carried out to advance switch, the signal that retreats on-off signal and proximity switch 5.
Claims (2)
1. a corner display instrument for the storage car wheel flutter of band hour meter, described storage car is configured with incremental optical-electricity encoder, proximity switch, advance switch and retreats switch; It is characterized in that described corner display instrument comprises: plucking number sign switch, filtering counting circuit, microprocessor, power transfer module and display module;
Described microprocessor carries out timing process by its timer internal after power-up initializing, obtains time data stored in internal storage; Receive the calibrating signal of described proximity switch transmission simultaneously and the counting chip in described filtering counting circuit is resetted;
Described filtering counting circuit obtains the impulse singla of described incremental optical-electricity encoder and carries out filtering and counting process, obtains count value and passes to described microprocessor;
Described microprocessor receives described count value, and described advance switch and retreat the signal that moves forward and backward that sends respectively of switch and process, and obtains the advancing angle information of described wheel flutter or retreats angle information;
Described microprocessor controls described display module to the advancing angle information of described time data or described wheel flutter or retreat angle information and carry out selections and show according to the on-off signal that described plucking number sign switch provides;
Described power transfer module is used for providing working power for described microprocessor.
2. the corner display instrument of the storage car wheel flutter of band according to claim 1 hour meter, is characterized in that: described display module is a circular display panel comprising angle index and binary temporal scale; Described angle index symmetry is divided into advancing angle scale and retreats angle index, and described advancing angle scale is lattice with every 15 °, and the position of each lattice is provided with a LED, 0 ° to 90 ° and 0 ° to-90 ° each 6 lattice that are evenly divided into is arranged; Described laggard angle index is also lattice with every 15 °, 0 ° to 90 ° and 0 ° to-90 ° each 6 lattice that are evenly divided into is arranged, thus is evenly divided into 24 lattice by one week of described circular display panel;
From 24 lattice described circular display panel, select continuous print 16 lattice as the two scale notation display lattice of described time data;
Described circular display panel also comprises power on light, for showing the power on signal of described microprocessor;
Described circular display panel also comprises malfunction coefficient lamp, for showing breakdown signal when described microprocessor does not collect described calibrating signal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510536200.3A CN105109551B (en) | 2015-08-25 | 2015-08-25 | Storage vehicle steering wheel angle display instrument with hourmeter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510536200.3A CN105109551B (en) | 2015-08-25 | 2015-08-25 | Storage vehicle steering wheel angle display instrument with hourmeter |
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| CN105109551A true CN105109551A (en) | 2015-12-02 |
| CN105109551B CN105109551B (en) | 2017-05-17 |
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| CN203511748U (en) * | 2013-07-25 | 2014-04-02 | 北汽福田汽车股份有限公司 | Steering wheel with angle indicator |
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2015
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| US20070194899A1 (en) * | 2004-07-27 | 2007-08-23 | Tenitek Ltd. | Indicator For A Control Wheel |
| CN1966335A (en) * | 2006-09-03 | 2007-05-23 | 孔朕 | Method and device for obviously promoting vehicle safe and reliable driving performance |
| CN101348128A (en) * | 2007-07-16 | 2009-01-21 | 浙江佳力科技股份有限公司 | Forklift wheel position sensing display apparatus |
| CN101797933A (en) * | 2010-03-24 | 2010-08-11 | 上海应用技术学院 | indicator for rotation angle of automotive steering wheel |
| KR20120067561A (en) * | 2010-12-16 | 2012-06-26 | 현대중공업 주식회사 | Apparatus for displaying steering angle in forklift rear wheel |
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