CN2276433Y - Anticollision device for vehicle reverse driven - Google Patents
Anticollision device for vehicle reverse driven Download PDFInfo
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- CN2276433Y CN2276433Y CN 96232463 CN96232463U CN2276433Y CN 2276433 Y CN2276433 Y CN 2276433Y CN 96232463 CN96232463 CN 96232463 CN 96232463 U CN96232463 U CN 96232463U CN 2276433 Y CN2276433 Y CN 2276433Y
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Abstract
The utility model relates to an anti-collision device for car backing, which belongs to the signal devices of vehicles. The utility model is provided with a controller which can be arranged in a car and an ultrasonic emission component and a receiving component which can be arranged at the tail part of the car. The single chip computer of the controller is connected with the control end of a phase and a level switching circuit which are connected with the ultrasonic emission component; the receiving component is connected with an amplifying circuit which is connected with a comparison circuit, the comparison circuit is connected with the single chip computer via the level switching circuit, and the single chip computer is connected with a sound alarm circuit. The utility model which has the advantages of strong practicability, convenient operation, higher reliability and convenient function expansion can be used after the utility model is provided with relevant software.
Description
The utility model relates to a kind of signalling apparatus of vehicle.
Existing automobile ultrasonic back-up buzzer, Chinese patent application CN2172235Y, the device of this application is arranged on automobile tail with ultrasonic transduter, electronic console, single-sheet miniature computer and switch are arranged in the operator's compartment, when automobile is moveed backward in gear shift, ultrasonic transduter is emission superconduction ripple behind car constantly, if when in 6 meters at the car rear obstacle being arranged, the super sonic that reflects is accepted by sensor, after micro computer is handled, corresponding reading distance and flash of light indication are arranged on telltale, and with alarm sound.But the technical characterictic of the technical scheme of this application belongs to a kind of functional technical characterictic substantially, no matter be in claims or all do not provide the structure of each parts or the annexation between each parts in the specification sheets, those of ordinary skills can't implement, so this application lacks practicality.And Chinese patent application CN2218677Y and CN2062299U have proposed class reversing proximity-warning device, but the function expandability of used circuit is relatively poor, and the setting of alarm distance parameter is malleable not, and reliability is not really high.
The purpose of this utility model is, provide be equipped with relevant software program in a kind of use after, strong practicality and higher, the easy to use reversing automobile anticollision device of circuit working reliability are promptly arranged.
The technical scheme that realizes the utility model purpose is (referring to Fig. 1), this device has controller that can be arranged in the automobile and the ultrasound emitting device (9) and the super sonic receiving-member (10) that can be arranged on automobile tail, emission element (9) links to each other with controller by lead respectively with receiving-member (10), its constructional feature is that controller has micro controller system (3), mu balanced circuit (1), clock circuit (2), phase place and level shifting circuit (42), comparator circuit (51), level shifting circuit (52), amplifying circuit (6), exchange reference circuit (7), benchmark circuit (8), sound alarm circuit (12) and sounding component (13); Mu balanced circuit (1) has the interface that links to each other with reversing automobile back light power lead, and mu balanced circuit (1) provides power supply for each relevant circuit in the controller; Clock circuit (2) links to each other with the clock end of micro controller system (3), terminals of the input/output terminal of micro controller system (3), can be described as I/O 1 end, this I/O 1 end links to each other with the control end of phase place and level shifting circuit (42), the mouth of phase place and level shifting circuit (42) has 2 terminals, and these 2 terminals link to each other with 2 input ends of ultrasound emitting device (9); The mouth of super sonic receiving-member (10) links to each other with an input end of amplifying circuit (6), and the mouth that exchanges reference circuit (7) links to each other with another input end of amplifying circuit (6); Terminals of the input/output terminal of micro controller system (3), can be described as I/O 3 ends, these I/O 3 ends link to each other with the control end of benchmark circuit (8), the mouth of benchmark circuit (8) links to each other with an input end of comparator circuit (51), and amplifying circuit (6) mouth links to each other with another input end of comparator circuit (51); The mouth of comparator circuit (51) links to each other with the control end of level shifting circuit (52), and the mouth of level shifting circuit (52) connects terminals of the input/output terminal of micro controller system (3), and these terminals can be described as I/O 2 ends; Terminals of the input/output terminal of micro controller system (3), can be described as I/O 4 ends, these I/O 4 ends link to each other with the control end of sound alarm circuit (12), the mouth sending and receiving acoustic element (13) of sound alarm circuit (12).
Referring to Fig. 2, the ultrasound emitting device of this device (9) has 2, is connected in parallel on 2 terminals of mouth of phase place and level shifting circuit (42), and super sonic receiving-member (10) has one, and its mouth links to each other with an input end of amplifying circuit (6).
Referring to Fig. 3, the ultrasound emitting device of this device (9) has 2, is connected in parallel on 2 terminals of mouth of phase place and level shifting circuit (42); Super sonic receiving-member (10) has 2, and amplifying circuit (6), comparator circuit (51) and level shifting circuit (52) have 2; The mouth of a receiving-member (10) links to each other with an amplifying circuit (6), and the mouth of this amplifying circuit (6) links to each other with an input end of a comparator circuit (51), and this comparator circuit (51) links to each other with the control end of a level shifting circuit (52); The mouth of another receiving-member (10) links to each other with another amplifying circuit (6), the output of this amplifying circuit (6) links to each other with an input end of another comparator circuit (51), and this comparator circuit (51) links to each other with the control end of another level shifting circuit (52); 2 input ends of the mouth of 2 level shifting circuits (52) and AND circuit link to each other, and the output of AND circuit connects I/O 2 ends of micro controller system (3); The mouth that exchanges reference circuit (7) links to each other with another input end of 2 amplifying circuits (6) respectively, and the mouth of benchmark circuit (8) links to each other with another input end of 2 comparator circuits (51) respectively.
Referring to Fig. 4, the ultrasound emitting device of this device (9) has 2, is connected in parallel on 2 terminals of mouth of phase place and level shifting circuit (42); Super sonic receiving-member (10) has 2, and amplifying circuit (6), comparator circuit (51) and level shifting circuit (52) have 2; The mouth of a receiving-member (10) links to each other with an amplifying circuit (6), and the mouth of this amplifying circuit (6) links to each other with an input end of a comparator circuit (51), and this comparator circuit (51) links to each other with an input end of OR circuit; The mouth of another receiving-member (10) links to each other with another amplifying circuit (6), and the mouth of this amplifying circuit (6) links to each other with an input end of a comparator circuit (51), and this comparator circuit (51) links to each other with another input end of OR circuit; The mouth of OR circuit links to each other with the control end that level changes shifting circuit (52), and the mouth of level shifting circuit (52) links to each other with I/O 3 ends of micro controller system (3); The mouth that exchanges reference circuit (7) links to each other with another input end of 2 amplifying circuits (6) respectively, and the mouth of benchmark circuit (8) links to each other with another input end of 2 comparator circuits (51) respectively.
Referring to Fig. 5, the micro controller system of this device (3) adopts the PIC series monolithic, and its inside bus structure adopts the Harvard structure of data line and order line independent separate, and its program store adopts the OTP type structure of a programming type, and its RTCC does the internal clocking counting machine.Mu balanced circuit (1) is for having the circuit of 78L08 type three terminal regulator and 78L05 type three terminal regulator, and its required input voltage be+12VDC, and have+11.3V ,+8V reaches+mouth of 5V.Clock circuit (2) is the quartz crystal oscillator circuit of 4MHZ for crystal oscillator frequency.Phase place and level shifting circuit (42) are made up of level shifting circuit and phase conversion circuit, and the output of level shifting circuit connects phase conversion circuit; Level shifting circuit is a capacitor C
19, its input end and mu balanced circuit (1)+the 8V mouth links to each other capacitor C
19Link to each other capacitor C with the input end of phase conversion circuit
19With the common junction of the input end of phase conversion circuit be the control end of phase place and level shifting circuit (42); Phase conversion circuit is divided into two-way, and the phase inverter series connection of one route odd number constitutes, and the mouth on this road links to each other with an end of ultrasound emitting device (9); Another route even numbers phase inverter series connection constitutes, and its mouth links to each other with the other end of ultrasound emitting device (9).Benchmark circuit (8) is by resistance R
17, R
28, R
10, R
9, R
8, aerotron Q
2And diode D
3Form; R
17With R
28Series connection, R
17With R
28Common junction be benchmark circuit (8) control end, link to each other with I/O 3 ends of micro controller system (3); R
28Other end ground connection, R
17Another termination Q
2Base stage, Q
2Grounded emitter; R
10With D
3Positive pole, D
3Negative pole and R
8Series connection successively, R
10The other end and mu balanced circuit (1)+the 8V mouth links to each other R
8Other end ground connection; R
10And D
3Common junction and Q
2Collecting electrode link to each other; R
9Be connected across R
10Common junction and D with+8V mouth
3Positive pole between, and D
3With R
8Common junction be the mouth of benchmark circuit (8).Exchange reference circuit (7) by resistance R
3, R
4, chemical capacitor C
14, C
15Form R
3With C
14Parallel connection, R
4With C
15Parallel connection, R
3An end and mu balanced circuit (1)+the 8V mouth links to each other, the other end is for exchanging the mouth of reference circuit (7), R
4An end ground connection, the other end also promptly exchanges the mouth of reference circuit (7).One end ground connection of super sonic receiving-member (10), the other end links to each other with the input end of amplifying circuit (6), amplifying circuit (6) has the integrated transporting discharging more than 2 or 2, the mouth that exchanges reference circuit (7) links to each other with the in-phase input end of each integrated transporting discharging, each integrated transporting discharging is provided with negative feedback resistor, be in series with coupling capacitance and input resistance between each integrated transporting discharging, be in series with resistance R between the input end of the inverting input of first order integrated transporting discharging and amplifying circuit (6)
2And capacitor C
1, and resistance R
1Be located between the input end and ground wire of amplifying circuit (6); The mouth and the capacitor C of the afterbody integrated transporting discharging of amplifying circuit (6)
3An end link to each other C
3The other end link to each other with the detecting circuit of amplifying circuit (6); Detecting circuit is by capacitor C
4, resistance R
11, R
12, diode D
1, D
2Form resistance R
11With diode D
1In parallel, diode D
1The positive ground line, diode D
1Negative pole and capacitor C
3Link to each other C
4, R
12Parallel connection, and R
12An end ground connection, the other end and D
2Negative pole link to each other D
2Positive pole and D
1And C
3Common junction link to each other D
2Negative pole also be the mouth of amplifying circuit (6).Comparator circuit (51) is by an integrated transporting discharging and capacitor C
8Form, the in-phase input end of integrated transporting discharging links to each other with the mouth of amplifying circuit (6), is connected to capacitor C between the inverting input of integrated transporting discharging and the ground wire
8, and this inverting input links to each other with the mouth of benchmark circuit (8), and the mouth of integrated transporting discharging also is the mouth of comparator circuit (51).Level shifting circuit (52) is by resistance R
13, R
15, R
14, capacitor C
16And aerotron Q
1Form R
13, R
15, R
16Series connection successively, C
16Other end ground connection, R
13And R
15Common public access point and Q
1Base stage link to each other Q
1Grounded emitter, Q
1Collecting electrode pass through resistance R
14With mu balanced circuit (1)+the 5V mouth links to each other R
14With the contact of+5V be the input end of level shifting circuit (52); R
13And C
16Common junction be level shifting circuit (52) control end, link to each other with the mouth of comparator circuit (51); Q
1Collecting electrode be level shifting circuit (52) mouth, link to each other with I/O 2 ends of micro controller system (3).Sound alarm circuit (12) is by resistance R
18, aerotron Q
3, voltage transformer B forms; R
18With Q
3Base stage link to each other Q
3Grounded emitter, Q
3Collecting electrode link to each other with pri one end of B, the other end of B and mu balanced circuit (1)+mouth of 11.3V links to each other; B secondary be sound alarm circuit (12) mouth, link to each other R with sounding component (13)
18The other end be sound alarm circuit (12) control end, link to each other with I/O 4 ends of micro controller system (3).
Referring to Fig. 6 and Fig. 5, between the I/O of micro controller system (3) 1 end and phase place and level shifting circuit (42), be provided with oscillating circuit (41); Oscillating circuit (41) is to serve as the multi-vibrator of main formation with 555 timers, and its 4 pin R end is the control end of oscillating circuit (41), links to each other with I/O 1 end of micro controller system (3), and is in series with resistance R between R end and the ground wire
273 pin of 555 timers are the mouth of oscillating circuit (41), link to each other with the control end of phase place and level shifting circuit (42); Be in series with capacitor C between the 5 pin C end of 555 timers and the ground wire
18Use the lead short circuit between the 6 pin T end of 555 timers and 2 pin; 8 pin of 555 timers are power end, are in series with resistance R between 8 pin and the 7 pin D end
25Resistance R
26, variable resistance Rv, capacitor C
17Series connection successively, C
17Other end ground connection, R
26The other end link to each other Rv and C with 7 pin of 555 timers
17The 6 pin T end of common junction and 555 timers link to each other, thereby constitute the square-wave signal source of exportable 40KHZ.
Referring to Fig. 1 and Fig. 5, also has the signal display circuit of looking (11), looking signal display circuit (11) is optical alarm circuit, the terminals more than 3 or 3 of the input/output terminal of micro controller system (3), can be described as I/O 6, I/O 7, I/O 8 ... end, link to each other with the signal display circuit (11) of looking more than 3 that shows different distance respectively, look the light-emitting diode that has in the signal display circuit (11) as alarm element.
Referring to Fig. 7, sound alarm circuit (12) is the speech type warning circuit, the I/O4 end of micro controller system (3) links to each other with the control end of sound alarm circuit (12), 3 terminals of the input/output terminal of micro controller system (3), can be described as I/O 9, I/O 10, I/O 11 ends, link to each other with the different trigger end of voice sheet respectively, the mouth of sound alarm circuit (12) links to each other with sounding component (13).
Referring to Fig. 8, this device has the signal display circuit of looking (11), looking signal display circuit (11) is the digital display type circuit, 4 terminals of the input/output terminal of micro controller system (3), can be described as I/O 6, I/O 7, I/O 8 and I/O 12 ends, I/O 9～I/O 12 ends link to each other with the input end of 2 decoders respectively, the mouth of decoder links to each other with telltale by resistance, I/O 7 and I/O8 end links to each other with the sheet choosing end of separately decoder, and I/O 6 ends pass through resistance and directly link to each other with the arithmetic point input end of the telltale on the left side.
Referring to Fig. 9, above-mentioned phase place and level shifting circuit (42) are by aerotron Q
6, Q
8, resistance R
30, R
31, R
32, R
33And capacitor C
9Form R
30An end be the control end of phase place and level shifting circuit (42), the other end and Q
6Base stage link to each other Q
6Grounded emitter, Q
6Collecting electrode and mu balanced circuit (1)+be in series with R between the 8V mouth
31, Q
6Collecting electrode and R
31Common junction and capacitor C
9An end link to each other capacitor C
9The other end be terminals of phase place and change-over circuit (42) mouth; Q
6Collecting electrode and R
31Common junction and aerotron Q
8Base stage link to each other Q
8Grounded emitter, Q
8Collecting electrode and mu balanced circuit (1)+be in series with R between the 8V mouth
33, Q
6Collecting electrode and R
33Common junction be another terminals of phase place and level shifting circuit (42) mouth.
The utlity model has positive effect: after (1) the utility model in use is equipped with relevant software program, promptly have stronger practicality, reliability easy to use, circuit working also higher.(2) adopt the structure of monolithic type because of this device, function expands convenient, can adopt multiple warning and display mode, transforms and disposes corresponding Display and Alarm Circuit parts and can realize as long as software is carried out part; Also can carry out part to software on demand to the setting of alarm distance simultaneously and revise and adjust, this modification is simple and convenient, alerting ability is bigger.(3) when micro controller system of the present utility model adopts the OPT version of PIC series, can make the cost of complete machine lower, help large scale application.
Drawing of the present utility model is described as follows:
Fig. 1 is a kind of circuit block diagram of the present utility model.
Fig. 2 has the block diagram of emission receiving element of the parts of 2 emission elements, 1 reception for the utility model circuit a kind of.
Fig. 3 is a kind of block diagram with emission receiving element of 2 emission elements, 2 receiving-members of the utility model circuit.
Fig. 4 is a kind of block diagram with emission receiving element of 2 emission elements, 2 receiving-members of the utility model circuit.
Fig. 5 is a kind of electrical schematic diagram of the present utility model.
Fig. 6 is an another kind of circuit block diagram of the present utility model.
Fig. 7 is a kind of electrical schematic diagram of the utility model sound alarm circuit.
Fig. 8 looks a kind of the electrical schematic diagram of signal display circuit for the utility model.
Fig. 9 is a kind of electrical schematic diagram of phase place of the present utility model and level shifting circuit.
Figure 10 is a kind of schematic perspective view of the utility model probe.
Figure 11 is a kind of schematic perspective view of the utility model controller.
Figure 12 is the employed a kind of flow chart first half of the utility model.
Figure 13 is the latter part corresponding to the flow chart among Figure 12.
Below in conjunction with drawings and Examples the utility model is further described.
See Fig. 5, Fig. 6,10 figure and Figure 11,
Make the shell of the probe of shape (91) as shown in figure 10 with the injection moulding of ABS engineering plastics pellet, the subtended angle of its horizontal direction is 120 °, and the subtended angle of vertical line direction is 55 °.Super sonic receiving-member (10) and emission element (9) are outsourcing, produce by Japanese Murata Manufacturing Co. Ltd., its model is the 40E7R/S type, receiving-member (10) and emission element (9) are fixedly mounted in the probing shell (91), the interface of the input end of emission element (9) is located on the shell (91), and the interface of the mouth of receiving-member (10) is located on the shell (91).
Make the shell of the controller of shape (92) as shown in figure 11 with the injection moulding of ABS engineering plastics pellet, the components and parts of the circuit of this device are arranged in the shell (92), and the concrete electrical connection of each components and parts is provided by Fig. 5.Shell (92) is provided with the interface that can link to each other with reversing automobile lamp power lead and ground wire, and the input end of the mu balanced circuit of controller (1) links to each other with this interface; Also be provided with sounding component mesh (93) on the shell (92), sounding component (13) is arranged on the inner of this mesh (93); Also be provided with 4 hole of light emitting diode on the shell (92), the green LED LED4 of expression controller work is set in one of them hole, is provided with the expression distance between car and obstruction in other three holes successively and is 3 red light emitting diodes LED1～3 of 2.1 meters, 1.1 meters and 0.6 meter.
The model that micro controller system in the circuit of this device (3) adopts U.S. Mi Kelaoqipa (Microchip) company to produce is OPT (safety fuse cutout) the type micro controller system of PIC16C54.Make its RTCC be arranged to timer internal to inner clock count, the RTCC end passes through resistance R
16Join with+5V power supply, 555 timers constitute oscillating circuit (41) by the mode of multi-vibrator substantially, and its 4 pin R end is linked to each other and can be under the control of micro controller system (3) with I/O 1 end of micro controller system (3), send the square-wave signal of 40KHZ, its 3 pin OUT end links to each other with the control end of phase place and level shifting circuit (42).Mu balanced circuit (1) is provided with 3 mouths, respectively output+11.3V ,+8V and+direct supply of 5V, these mouths are continuous with each relevant parts of circuit respectively.
This device must be equipped with relevant software program, and concrete grammar is with fever writes relevant procedures to be solidificated in the OTP type ROM memory device of micro controller system.During installation, probe can be fixedly mounted on the centre of miniature car rear portion safety lever, and controller is located at the interior appropriate location of car and can uses.
Referring to Figure 12 and Figure 13,1. when reversing automobile, backing-up lamp is luminous, and simultaneously the mu balanced circuit (1) of this device is switched on, accept automobile storage battery+the power supply input of 12V, and export respectively+5V at mouth ,+8V and 11.3V direct current (DC).Mu balanced circuit (1)+output of 5V makes micro controller system (3), 555 timers, level shifting circuit (52) respectively and looks signal display circuit (11) and power on; The output of+8V makes phase place and level shifting circuit (42), amplifying circuit (6) respectively, exchanges powering on of reference circuit (7) and benchmark circuit (8); The output of+11.3V powers on voltage transformer B.2. after looking signal display circuit (11) and powering on, make LED 4 send green glow by the power end of this circuit by resistance R 23 and represent that automobile begins reversing and this device is started working.Simultaneously, after micro controller system (3) powered on, the mode of operation that input/output port is set by programming control was as follows: I/O 1, I/O 3 and I/04 are output, and (label is that I/O m～n) for exporting, I/O 2 is input to I/O 6～8 among Figure 12.3. the initial condition of input/output port: I/O 6～8 is set is high level, I/O 1, I/O 4 are low level, and I/O 2, I/O 3 are high level.4. put I/O 1 and be high level, make 4 pin R=1 of 555 timers of oscillating circuit (41), after internal inverted, remove blockade, and export the square-wave signal of 40KHZ from the 3 pin OUT end of 555 timers inner joint denial gate.This signal is transported to the control end of phase place and level shifting circuit (42), through the two-way phase inverter anti-phase and strengthen horsepower output after, above one tunnel signal anti-phase and capacitor C 19 adds to an end of ultrasound emitting device (9) through two-stage, below one tunnel signal through the three extremely anti-phase other ends that add to emission element (9), and make emission element (9) send the super sonic of 40KHZ backward.Meanwhile, it is low level that program run is provided with I/O 3, make benchmark circuit (8) output high level to comparator circuit (51), even receiving-member (10) has signal to produce, after amplifying circuit (6) is transported to comparator circuit (51), comparator circuit (51) also can only output low level, thereby level shifting circuit (52) output high level is to I/O 2 ends.5. I/O 1 end of delaying time is that high level, I/O3 end is low level 1ms, and at this moment, I/O 1 control oscillation circuit (41) continues the square-wave signal of the 40KHZ of output 1ms, thereby makes emission element (9) rearward continue 1 millisecond of the super sonic of emission 40KHZ.6. put I/O 1 and be low level, make emission element (9) stop to launch super sonic.7. continuing time-delay I/O 3 is low level 1ms, and interior during this period of time relatively circuit (51) is output low level all the time, and makes level shifting circuit (52) export high level all the time to I/O 2 ends.I/O 3 continues the 2ms output low levels, is in order to eliminate remained shock that emission element (9) produced connects portion (10) to reception influence after stopping to launch super sonic.8. put I/O 3 and be high level, the aerotron Q2 conducting in benchmark circuit this moment (8), thus make the inverting input of the benchmark of benchmark circuit (8) output 0.4V to comparator circuit (51), make comparator circuit (51) state to be compared such as be in.9. work by " mask register OPTION " in the programming control micro controller system (3).One of function of OPTION is " pre-divider " to be distributed to RTCC (counter register) or WDT (house dog), and pre-divider is frequency division multiple programmable 8 digit counters.This program segment is provided with OPTION, and pre-divider is distributed to RTCC.Like this, then make the micro controller system clock signal carry out counting and timing through transporting to RTCC again behind the pre-divider frequency division.10. program is read to arithmetic logic unit alu the height numerical value of I/O 2 end level, and judges whether to be low level, if not low level, judges then whether RTCC counts 〉=constant C.Constant C is to set according to the maximum distance of required warning.This enforcement is divided into 3 sections by the distance of car and obstruction and automobile distance, and first section is 0～0.6m, and second section is 0.6～1.1m, and the 3rd section is 1.1～2.1m.Calculate super sonic by speed 341 meter per seconds of sound wave and receive required time, and can be provided with and the corresponding time parameter of above-mentioned distance, thereby can how much reflect the distance of distance according to rolling counters forward from being transmitted into reflection.According to this principle, the represented distance of constant C is 2.1 meters.When judging the RTCC value, then continue numerical value value of reading, circular flow to I/O 2 less than represented 2.1 meters numerical value.When RTCC value during greater than the numerical value of represented 2.1m, program run is back to the leading portion circular flow of program again to the program segment of the 45ms that delays time.
Reading I/O 2 level numerical value, and when I/O 2 is low level, then from RTCC, take out institute's count value, whether this numerical value and expression obstacle are compared less than 0.6 meter numerical value, if, then in I/O 7 end output low levels, at the impulse singla of I/O4 end output 500HZ, the about 60ms of time length, and make luminous two pipe LED1 luminous, luminous element (13) is sounded; If not, then whether compare less than 1.1 meters numerical value with the expression obstacle.If, then in I/O8 end output low level, at the impulse singla of the about 3000HZ of I/O 4 ends output, time length is about 60ms, and makes LED 2 luminous, and sounding component (13) is sounded; If not, then whether compare less than 2.1 meters numerical value with the expression obstacle.If, then in I/O 9 end output low levels, at the about 60ms of impulse singla of I/O 4 ends output 200HZ, and make LED 3 luminous, sounding component (13) is sounded.Behind the 60ms, program run is to leading portion circular flow.There are each second tens of data to read and handle to I/O 2 ends.
The signal of I/O 2 ends derives from receiving-member (10), when receiving-member (10) when receiving reflected signal, then this signal amplifies and detection by amplifying circuit (6), and transport to the in-phase input end of comparator circuit (51), this comparator circuit (51) output high level is to level shifting circuit (52), turn-on transistor Q1 and make the I/O2 end of level shifting circuit (52) output low level to micro controller system (3).
See Fig. 2, and referring to Fig. 5,
All the other are identical with embodiment 1, and difference is that emission element (9) has 2, are connected in parallel on 2 terminals of phase place and level shifting circuit (42) mouth.Probing shell (91) has 3, and 2 emission elements (9), 1 receiving-member (10) separate in the stuck-at-probing shell (91).2 probes that are provided with emission element (9) are fixed on the symmetric position place of automobile tail safety lever both sides, and 1 probe that is provided with receiving-member (10) is fixed on middle.
Compare with the product of embodiment 1, the product working process of present embodiment much at one, and investigative range is bigger.
See Fig. 3, and referring to Fig. 5,
All the other are identical with embodiment 1, and difference is that emission element (9) has 2, are connected in parallel on 2 terminals of phase place and level shifting circuit (42) mouth.Receiving-member (10) has 2.1 emission element (9) and 1 receiving-member (10) are formed 1 probe, have 2 probes, are installed in the symmetric position place of automobile tail safety lever both sides.
Amplifying circuit (6), comparator circuit (51) and level shifting circuit (52) have 2; The mouth of a receiving-member (10) links to each other with an amplifying circuit (6), and the mouth of this amplifying circuit (6) links to each other with an input end of a comparator circuit (51), and this comparator circuit (51) links to each other with the control end of a level shifting circuit (52); The mouth of another receiving-member (10) links to each other with another amplifying circuit (6), the output of this amplifying circuit (6) links to each other with an input end of another comparator circuit (51), and this comparator circuit (51) links to each other with the control end of another level shifting circuit (52); 2 input ends of the mouth of 2 level shifting circuits (52) and AND circuit link to each other, and the output of AND circuit connects the I/O2 end of micro controller system (3); The mouth that exchanges reference circuit (7) links to each other with another input end of 2 amplifying circuits (6) respectively, and the mouth of benchmark circuit (8) links to each other with another input end of 2 comparator circuits (51) respectively.
The working process of present embodiment is substantially the same manner as Example 1.Difference is that its investigative range is bigger, when obstacle signal, no matter result from which receiving-member (10) or 2 receiving-members (10) produce simultaneously, by producing low level with Men Junke at I/O 2 ends.
Embodiment 4,
See Fig. 4, and referring to Fig. 5,
All the other are identical with embodiment 1, and difference is that emission element (9) has 2, are connected in parallel on 2 terminals of phase place and level shifting circuit (42) mouth.Receiving-member (10) has 2.1 emission element (9) and 1 receiving-member (10) are formed 1 probe, have 2 probes, are installed in the symmetric position place of automobile tail safety lever both sides.
Amplifying circuit (6), comparator circuit (51) and level shifting circuit (52) have 2; The mouth of a receiving-member (10) links to each other with an amplifying circuit (6), and the mouth of this amplifying circuit (6) links to each other with an input end of a comparator circuit (51), and it is continuous with an input end of OR circuit that this compares tortoise road (51); The mouth of another receiving-member (10) links to each other with another amplifying circuit (6), and the mouth of this amplifying circuit (6) links to each other with an input end of a comparator circuit (51), and this comparator circuit (51) links to each other with another input end of OR circuit; The mouth of OR circuit links to each other with the control end that level changes shifting circuit (52), and the mouth of level shifting circuit (52) links to each other with I/O 3 ends of micro controller system (3); The mouth that exchanges reference circuit (7) links to each other with another input end of 2 amplifying circuits (6) respectively, and the mouth of benchmark circuit (8) links to each other with another input end of 2 comparator circuits (51) respectively.
The present embodiment working process is substantially the same manner as Example 1.Difference is, its investigative range is bigger, when obstacle signal, no matter result from which receiving-member (10) or 2 receiving-members (10) produce simultaneously, all can by or door to level shifting circuit (52) output high level, and by level shifting circuit (52) output low level to I/O 2 ends.
See Fig. 9, and referring to Fig. 5,
All the other are with embodiment 1, and difference is that phase place and level shifting circuit (42) are by aerotron Q
6, Q
8, resistance R
30, R
31, R
32, R
33And capacitor C
9Form R
30An end be the control end of phase place and level shifting circuit (42), the other end and Q
6Base stage link to each other Q
6Grounded emitter, Q
6Collecting electrode and mu balanced circuit (1)+be in series with R between the 8V mouth
31, Q
6Collecting electrode and R
31Common junction and capacitor C
9An end link to each other capacitor C
9The other end be terminals of phase place and change-over circuit (42) mouth; Q
6Collecting electrode and R
31Common junction and aerotron Q
8Base stage link to each other Q
8Grounded emitter, Q
8Collecting electrode and mu balanced circuit (1)+be in series with R between the 8V mouth
33, Q
6Collecting electrode and R
33Common junction be another terminals of phase place and level shifting circuit (42) mouth.
Its working process is substantially the same manner as Example 1.Difference is that the 40KHZ square-wave signal that oscillating circuit (41) produces is through Q
6After anti-phase, the one tunnel through C
9Add to an end of emission element (9), another road is through Q
8The anti-phase again other end that adds to emission element (9), and make emission element (9) launch the super sonic of 40KHZ.
See Fig. 7, Fig. 8, and referring to Fig. 5,
All the other are identical with embodiment 1, difference is, sound alarm circuit (12) is the speech type warning circuit, I/O 4 ends of micro controller system (3) link to each other with the control end of sound alarm circuit (12), 3 terminals of the input/output terminal of micro controller system (3), can be described as I/O 9, I/O 10, I/O 11 ends, link to each other with the different trigger end of voice sheet respectively, the mouth of sound alarm circuit (12) links to each other with sounding component (13).Looking signal display circuit (11) is the digital display type circuit, 4 terminals of the input/output terminal of micro controller system (3), can be described as I/O 6, I/O 7, I/O 8 and I/O 12 ends, I/O 9～I/O 12 ends link to each other with the input end of 2 decoders respectively, the mouth of decoder links to each other with telltale by resistance, I/O 7 and I/O 8 ends link to each other with the sheet choosing end of separately decoder, and I/O 6 ends pass through resistance and directly link to each other with the arithmetic point input end of the telltale on the left side.
Its working process is substantially the same manner as Example 1.Difference is that software program has carried out corresponding change, that is, I/O 4 was high level when initial condition was set, and the digital display subprogram segment is set.When I/O 2 is low level, numerical value according to RTCC, the output that makes I/O 7 becomes low level by high level and offers the sheet choosing end of the MC14511 on the right as chip selection signal, thereby export 8421 yards digital behind the expression arithmetic point that produces by micro controller system (3) inside on I/O 9～I/O 12 lines, in the right frame at device for digit-displaying behind the decoder, show also maintenance of numerical value.Make the output of I/O8 become low level offers the decoder on the left side as chip selection signal sheet choosing end again by high level, thereby output on I/O 9～I/O 12 lines by 8421 yards of the expression integer of micro controller system (3) internal pair production, in the left frame at device for digit-displaying behind the decoder, show numerical value and keep.After ALU judges that I/O 2 has moved the display subroutine section for low level, promptly move the acoustic alarm subprogram segment, it is low level that this subprogram segment is provided with I/O 9～11 initial conditions, make I/O 4 outputs become low level then by high level, voice sheet MSS1061 is powered on, in running order, and be that numerical value corresponding to 2.1m, 1.1m or 0.6m makes the output of I/O 9, I/O 10 or I/O 11 become high level by low level respectively according to TRCC timing numerical value, tell that chaufeur is the voice segments of how many distances thereby send at 9 pin output signals and at sounding component.
See Fig. 6 and referring to Fig. 5,
All the other are with embodiment 1, difference is, dead-beat circuit (41) in the present embodiment, I/O 1 end of micro controller system (3) directly links to each other with the control end of phase place and level shifting circuit (42), the 40KHZ square-wave signal is produced in micro controller system (3) by software program, can a nested subprogram in the main program in embodiment 1.Because the machine instruction cycle of micro controller system (3) is 1us, so utilize this signal, can obtain continuing the 40KHZ square-wave signal of 1ms as follows: 1. send out low level 1us, time-delay 11us; 2. send out high level 1us, time-delay 11us; 3. judge whether it is the 40th square-wave cycle, if not, then circulation continues; If then enter next frame of main program.
Claims (8)
1, a kind of reversing automobile anticollision device, have controller that can be arranged in the automobile and the ultrasound emitting device (9) and the super sonic receiving-member (10) that can be arranged on automobile tail, emission element (9) links to each other with controller by lead respectively with receiving-member (10), it is characterized in that controller has micro controller system (3), mu balanced circuit (1), clock circuit (2), phase place and level shifting circuit (42), comparator circuit (51), level shifting circuit (52), amplifying circuit (6), exchange reference circuit (7), benchmark circuit (8), sound alarm circuit (12) and sounding component (13); Mu balanced circuit (1) has the interface that links to each other with reversing automobile back light power lead, and mu balanced circuit (1) provides power supply for each relevant circuit in the controller; Clock circuit (2) links to each other with the clock end of micro controller system (3), terminals of the input/output terminal of micro controller system (3), can be described as I/O 1 end, this I/O 1 end links to each other with the control end of phase place and level shifting circuit (42), the mouth of phase place and level shifting circuit (42) has 2 terminals, and these 2 terminals link to each other with 2 input ends of ultrasound emitting device (9); The mouth of super sonic receiving-member (10) links to each other with an input end of amplifying circuit (6), and the mouth that exchanges reference circuit (7) links to each other with another input end of amplifying circuit (6); Terminals of the input/output terminal of micro controller system (3), can be described as I/O 3 ends, these I/O 3 ends link to each other with the control end of benchmark circuit (8), the mouth of benchmark circuit (8) links to each other with an input end of comparator circuit (51), and amplifying circuit (6) mouth links to each other with another input end of comparator circuit (51); The mouth of comparator circuit (51) links to each other with the control end of level shifting circuit (52), and the mouth of level shifting circuit (52) connects terminals of the input/output terminal of micro controller system (3), and these terminals can be described as I/O 2 ends; Terminals of the input/output terminal of micro controller system (3), can be described as I/O 4 ends, these I/O 4 ends link to each other with the control end of sound alarm circuit (12), the mouth sending and receiving acoustic element (13) of sound alarm circuit (12).
2, reversing automobile anticollision device according to claim 1, it is characterized in that, ultrasound emitting device (9) has 2, be connected in parallel on 2 terminals of mouth of phase place and level shifting circuit (42), super sonic receiving-member (10) has one, and its mouth links to each other with an input end of amplifying circuit (6).
3, reversing automobile anticollision device according to claim 1 is characterized in that, ultrasound emitting device (9) has 2, is connected in parallel on 2 terminals of mouth of phase place and level shifting circuit (42); Super sonic receiving-member (10) has 2, and amplifying circuit (6), comparator circuit (51) and level shifting circuit (52) have 2; The mouth of a receiving-member (10) links to each other with an amplifying circuit (6), and the mouth of this amplifying circuit (6) links to each other with an input end of a comparator circuit (51), and this comparator circuit (51) links to each other with the control end of a level shifting circuit (52); The mouth of another receiving-member (10) links to each other with another amplifying circuit (6), the output of this amplifying circuit (6) links to each other with an input end of another comparator circuit (51), and this comparator circuit (51) links to each other with the control end of another level shifting circuit (52); 2 input ends of the mouth of 2 level shifting circuits (52) and AND circuit link to each other, and the output of AND circuit connects I/O 2 ends of micro controller system (3); The mouth that exchanges reference circuit (7) links to each other with another input end of 2 amplifying circuits (6) respectively, and the mouth of benchmark circuit (8) links to each other with another input end of 2 comparator circuits (51) respectively.
4, reversing automobile anticollision device according to claim 1 is characterized in that, ultrasound emitting device (9) has 2, is connected in parallel on 2 terminals of mouth of phase place and level shifting circuit (42); Super sonic receiving-member (10) has 2, and amplifying circuit (6), comparator circuit (51) and level shifting circuit (52) have 2; The mouth of a receiving-member (10) links to each other with an amplifying circuit (6), and the mouth of this amplifying circuit (6) links to each other with an input end of a comparator circuit (51), and this comparator circuit (51) links to each other with an input end of OR circuit; The mouth of another receiving-member (10) links to each other with another amplifying circuit (6), and the mouth of this amplifying circuit (6) links to each other with an input end of a comparator circuit (51), and this comparator circuit (51) links to each other with another input end of OR circuit; The mouth of OR circuit links to each other with the control end that level changes shifting circuit (52), and the mouth of level shifting circuit (52) links to each other with I/O 3 ends of micro controller system (3); The mouth that exchanges reference circuit (7) links to each other with another input end of 2 amplifying circuits (6) respectively, and the mouth of benchmark circuit (8) links to each other with another input end of 2 comparator circuits (51) respectively.
5, according to the described reversing automobile anticollision device of one of claim 1 to 4, it is characterized in that,
A, micro controller system (3) adopt the PIC series monolithic, and its inside bus structure adopts the Harvard structure of data line and order line independent separate, and its program store adopts the OTP type structure of a programming type, and its RTCC does the internal clocking counting machine;
B, mu balanced circuit (1) be for having the circuit of 78L08 type three terminal regulator and 78L05 type three terminal regulator, and its required input voltage be+12VDC, and have+11.3V ,+8V reaches+mouth of 5V;
C, clock circuit (2) are the quartz crystal oscillator circuit of 4MHZ for crystal oscillator frequency;
D, phase place and level shifting circuit (42) are made up of level shifting circuit and phase conversion circuit, and the output of level shifting circuit connects phase conversion circuit; Level shifting circuit is a capacitor C
19, its input end and mu balanced circuit (1)+the 8V mouth links to each other capacitor C
19Link to each other capacitor C with the input end of phase conversion circuit
19With the common junction of the input end of phase conversion circuit be the control end of phase place and level shifting circuit (42); Phase conversion circuit is divided into two-way, and the phase inverter series connection of one route odd number constitutes, and the mouth on this road links to each other with an end of ultrasound emitting device (9); Another route even numbers phase inverter series connection constitutes, and its mouth links to each other with the other end of ultrasound emitting device (9);
E, benchmark circuit (8) are by resistance R
17, R
28, R
10, R
9, R
8, aerotron Q
2And diode D
3Form; R
17With R
28Series connection, R
17With R
28Common junction be benchmark circuit (8) control end, link to each other with I/O 3 ends of micro controller system (3); R
28Other end ground connection, R
17Another termination Q
2Base stage, Q
2Grounded emitter; R
10With D
3Positive pole, D
3Negative pole and R
8Series connection successively, R
10The other end and mu balanced circuit (1)+the 8V mouth links to each other R
8Other end ground connection; R
10And D
3Common junction and Q
2Collecting electrode link to each other; R
9Be connected across R
10Common junction and D with+8V mouth
3Positive pole between, and D
3With R
8Common junction be the mouth of benchmark circuit (8);
F, interchange reference circuit (7) are by resistance R
3, R
4, chemical capacitor C
14, C
15Form R
3With C
14Parallel connection, R
4With C
15Parallel connection, R
3An end and mu balanced circuit (1)+the 8V mouth links to each other, the other end is for exchanging the mouth of reference circuit (7), R
4An end ground connection, the other end also promptly exchanges the mouth of reference circuit (7);
One end ground connection of g, super sonic receiving-member (10), the other end links to each other with the input end of amplifying circuit (6), amplifying circuit (6) has the integrated transporting discharging more than 2 or 2, the mouth that exchanges reference circuit (7) links to each other with the in-phase input end of each integrated transporting discharging, each integrated transporting discharging is provided with negative feedback resistor, be in series with coupling capacitance and input resistance between each integrated transporting discharging, be in series with resistance R between the input end of the inverting input of first order integrated transporting discharging and amplifying circuit (6)
2And capacitor C
1, and resistance R
1Be located between the input end and ground wire of amplifying circuit (6); The mouth and the capacitor C of the afterbody integrated transporting discharging of amplifying circuit (6)
3An end link to each other C
3The other end link to each other with the detecting circuit of amplifying circuit (6); Detecting circuit is by capacitor C
4, resistance R
11, R
12, diode D
1, D
2Form resistance R
11With diode D
1In parallel, diode D
1The positive ground line, diode D
1Negative pole and capacitor C
3Link to each other C
4, R
12Parallel connection, and R
12An end ground connection, the other end and D
2Negative pole link to each other D
2Positive pole and D
1And C
3Common junction link to each other D
2Negative pole also be the mouth of amplifying circuit (6);
H, comparator circuit (51) are by an integrated transporting discharging and capacitor C
8Form, the in-phase input end of integrated transporting discharging links to each other with the mouth of amplifying circuit (6), is connected to capacitor C between the inverting input of integrated transporting discharging and the ground wire
8, and this inverting input links to each other with the mouth of benchmark circuit (8), and the mouth of integrated transporting discharging also is the mouth of comparator circuit (51);
I, level shifting circuit (52) are by resistance R
13, R
15, R
14, capacitor C
16And aerotron Q
1Form R
13, R
15, R
16Series connection successively, C
16Other end ground connection, R
13And R
15Common public access point and Q
1Base stage link to each other Q
1Grounded emitter, Q
1Collecting electrode pass through resistance R
14With mu balanced circuit (1)+the 5V mouth links to each other R
14With the contact of+5V be the input end of level shifting circuit (52); R
13And C
16Common junction be level shifting circuit (52) control end, link to each other with the mouth of comparator circuit (51); Q
1Collecting electrode be level shifting circuit (52) mouth, link to each other with I/O 2 ends of micro controller system (3);
J, sound alarm circuit (12) are by resistance R
18, aerotron Q
3, voltage transformer B forms; R
18With Q
3Base stage link to each other Q
3Grounded emitter, Q
3Collecting electrode link to each other with pri one end of B, the other end of B and mu balanced circuit (1)+mouth of 11.3V links to each other; B secondary be sound alarm circuit (12) mouth, link to each other R with sounding component (13)
18The other end be sound alarm circuit (12) control end, link to each other with I/O 4 ends of micro controller system (3).
6, according to the described reversing automobile anticollision device of one of claim 1 to 4, it is characterized in that, between the I/O of micro controller system (3) 1 end and phase place and level shifting circuit (42), be provided with oscillating circuit (41); Oscillating circuit (41) is to serve as the multi-vibrator of main formation with 555 timers, and its 4 pin R end is the control end of oscillating circuit (41), links to each other with I/O 1 end of micro controller system (3), and is in series with resistance R 27 between R end and the ground wire; 3 pin of 555 timers are the mouth of oscillating circuit (41), link to each other with the control end of phase place and level shifting circuit (42); Be in series with capacitor C between the 5 pin C end of 555 timers and the ground wire
18Use the lead short circuit between the 6 pin T end of 555 timers and 2 pin; 8 pin of 555 timers are power end, are in series with resistance R between 8 pin and the 7 pin D end
25Resistance R
26, variable resistance Rv, capacitor C
17Series connection successively, C
17Other end ground connection, R
26The other end link to each other Rv and C with 7 pin of 555 timers
17The 6 pin T end of common junction and 555 timers link to each other, thereby constitute the square-wave signal source of exportable 40KHZ.
7, according to the described reversing automobile anticollision device of one of claim 1 to 4, it is characterized in that, sound alarm circuit (12) is the speech type warning circuit, I/O 4 ends of micro controller system (3) link to each other with the control end of sound alarm circuit (12), 3 terminals of the input/output terminal of micro controller system (3), can be described as I/O 9, I/O 10, I/O 11 ends, link to each other with the different trigger end of voice sheet respectively, the mouth of sound alarm circuit (12) links to each other with sounding component (13).
According to the described reversing automobile anticollision device of one of claim 1 to 4, it is characterized in that 8, phase place and level shifting circuit (42) are by aerotron Q
6, Q
8, resistance R
30, R
31, R
32, R
33And capacitor C
9Form R
30An end be the control end of phase place and level shifting circuit (42), the other end and Q
6Base stage link to each other Q
6Grounded emitter, Q
6Collecting electrode and mu balanced circuit (1)+be in series with R between the 8V mouth
31, Q
6Collecting electrode and R
31Common junction and capacitor C
9An end link to each other capacitor C
9The other end be terminals of phase place and change-over circuit (42) mouth; Q
6Collecting electrode and R
31Common junction and aerotron Q
8Base stage link to each other Q
8Grounded emitter, Q
8Collecting electrode and mu balanced circuit (1)+be in series with R between the 8V mouth
33, Q
6Collecting electrode and R
33Common junction be another terminals of phase place and level shifting circuit (42) mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96232463 CN2276433Y (en) | 1996-08-01 | 1996-08-01 | Anticollision device for vehicle reverse driven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96232463 CN2276433Y (en) | 1996-08-01 | 1996-08-01 | Anticollision device for vehicle reverse driven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2276433Y true CN2276433Y (en) | 1998-03-18 |
Family
ID=33909415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96232463 Expired - Fee Related CN2276433Y (en) | 1996-08-01 | 1996-08-01 | Anticollision device for vehicle reverse driven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2276433Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006076839A1 (en) * | 2005-01-18 | 2006-07-27 | Steelmate Co., Ltd. | Power wire carrier wave automobile anticollision radar |
| CN101982346A (en) * | 2010-10-25 | 2011-03-02 | 苏州高新区禾云设备设计事务所 | Flashing light alarm circuit for vehicle parking at night |
| CN102390341A (en) * | 2011-10-22 | 2012-03-28 | 成都市翻鑫家科技有限公司 | Automotive anti-collision alarm |
| CN105487079A (en) * | 2015-12-11 | 2016-04-13 | 成都翰兴科技有限公司 | Gain flash-lamp type underground parking lot backing auxiliary system |
-
1996
- 1996-08-01 CN CN 96232463 patent/CN2276433Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006076839A1 (en) * | 2005-01-18 | 2006-07-27 | Steelmate Co., Ltd. | Power wire carrier wave automobile anticollision radar |
| US7626512B2 (en) | 2005-01-18 | 2009-12-01 | Steelmate Co, Ltd | Power wire carrier wave automobile anti-collision radar |
| CN101982346A (en) * | 2010-10-25 | 2011-03-02 | 苏州高新区禾云设备设计事务所 | Flashing light alarm circuit for vehicle parking at night |
| CN102390341A (en) * | 2011-10-22 | 2012-03-28 | 成都市翻鑫家科技有限公司 | Automotive anti-collision alarm |
| CN105487079A (en) * | 2015-12-11 | 2016-04-13 | 成都翰兴科技有限公司 | Gain flash-lamp type underground parking lot backing auxiliary system |
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