CN102930742A - Circuit structure of ultrasonic parking place detector - Google Patents
Circuit structure of ultrasonic parking place detector Download PDFInfo
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- CN102930742A CN102930742A CN2012104337852A CN201210433785A CN102930742A CN 102930742 A CN102930742 A CN 102930742A CN 2012104337852 A CN2012104337852 A CN 2012104337852A CN 201210433785 A CN201210433785 A CN 201210433785A CN 102930742 A CN102930742 A CN 102930742A
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Abstract
The invention relates to a circuit structure of an ultrasonic parking place detector. The circuit structure is connected with a single-chip microcomputer through the input end of an ultrasonic driving circuit, an ultrasonic sensor is connected with the input end of a received signal amplification and detection circuit, the output end of the received signal amplification and detection circuit is connected to the single-chip microcomputer, the gain control end is connected to a single-chip microcomputer port through an output expander, an oscillating circuit and a watchdog circuit are respectively connected with corresponding ports of the single-chip microcomputer, a transistor-transistor logic (TTL) serial communication port of an RS-422 communication circuit chip is connected with a communication port of the single-chip microcomputer, the input end of a power circuit is connected with external 24V direct current, a driving indicating circuit is connected with the single-chip microcomputer port through the output expander, and an input expander is used for connecting a dial switch so as to set up parameters and input the parameters to the single-chip microcomputer. The circuit structure of the ultrasonic parking place detector enables a parking place guide system to guide vehicles automatically to enter empty parking places rapidly, reduces cost of managers, eliminates troubles for searching parking places, saves time, and enables images of parking lots to be perfect.
Description
Technical field
The present invention relates to a kind of ultrasonic detector circuit, especially ultrasound wave parking space detector circuit structure belongs to ultrasonic detection technology and intelligent transportation field.
Background technology
Along with Modernization, international development, city dweller's car owning amount sharply increases, and in crowded urban district, the contradiction between automobile and the parking stall is more and more outstanding.Increasing parking demand day by day can't be satisfied in public parking lot.How to take full advantage of the demand of berthing that limited parking lot resource at utmost satisfies vehicle, become current urgent problem.
The ubiquitous problem in parking lot has at present: 1, also have on earth how many parking stalls to use in the field, the supvr knows nothing, can only be by manually going prospecting.2, the person of parking enters and can't enter rapidly parking spot behind the parking lot and park cars, the vacant parking stall of unordered mobile searching inside, and the A-road resource of coming in and going out in not only taking, even can cause site inside accesses to block up.3, must be equipped with a large amount of full-time executives artificial guided vehicle in the parking lot and park, increase the parking lot management cost.4, the supvr can't in time add up the vehicle flowrate of different times every day, can not in time optimize the parking stall resource distribution, causes the parking lot utilization factor low.
Summary of the invention
The object of the invention is to overcome above-mentioned weak point, thereby provide a kind of circuit structure of ultrasound wave parking space detector, the circuit structure of this detecting device
EnergyProvide a kind of safer, comfortable, convenient, fast and open environment to the car owner, realize high efficiency, energy-saving, the environmental protection of parking lot operation; Other equipment and the software application of matching vehicle position guidance system make the parking stall inducible system enter fast empty parking space by automated guided vehicle, reduce managerial personnel's cost, eliminate the worry of seeking the parking stall, and saving time makes the parking lot image more perfect.
According to technical scheme provided by the invention, the circuit structure of ultrasound wave parking space detector comprises single-chip microcomputer, ultrasonic drive circuit, ultrasonic sensor, the amplification of reception signal and detecting circuit, gain control end, out-expander, input expander, oscillatory circuit, watchdog circuit, RS-422 communication circuit chip, drives indicating circuit, toggle switch and power circuit;
The input end of described ultrasonic drive circuit links to each other with single-chip microcomputer, makes single-chip microcomputer send drive control signal, and output terminal links to each other with ultrasonic sensor;
Described ultrasonic sensor links to each other with the input end of detecting circuit with described reception signal amplification, receives echoed signal and amplifies, detects processing, and the output terminal that receives signal amplification and detecting circuit is connected to single-chip microcomputer;
Described gain control end is connected to one-chip machine port by out-expander, makes the Single-chip Controlling signal gain, receives simultaneously echo-pulse and carries out the data processing;
Described oscillatory circuit links to each other with the single-chip microcomputer corresponding port respectively with watchdog circuit, realizes that single-chip microcomputer reliably works;
The TTL serial communication port of described RS-422 communication circuit chip links to each other with the single chip communication mouth, is used for communicating with regional main control computer;
Described power circuit input end links to each other with outside 24V direct supply, links to each other with the each several part circuit power behind filtering voltage regulation;
Described driving indicating circuit links to each other with one-chip machine port by out-expander, realizes the LED light indicating operating status;
Described input expander is used for connecting toggle switch, with parameters input single-chip microcomputer.
For detection of ultrasound wave parking space detector circuit be arranged on parking stall top and constantly send pulsed ultrasonic wave downwards, receive simultaneously the ultrasonic pulse-echo of this below, parking stall, MCU in the detecting device is by calculating, can detect each parking stall has or not vehicle to take, indicate this detecting device to communicate with computing machine by dual-colored LED, cross bus and pass to the Region control computing machine so that each parking stall takies the information exchange of situation, processed by software by computing machine, the relevant demonstration of time update information display screen stops car into the room fast with the guiding driver.
As a further improvement on the present invention, described ultrasonic drive circuit adopts ultrasonic sensor anodal anodal with the 8th diode, the 9th diode negative pole and the 20 electric capacity one end link to each other, the ultrasonic sensor negative pole connects power supply ground, the 8th diode negative pole, the 9th diode is anodal, the first diode is anodal to link to each other with the inductance transformer secondary winding, inductance transformer secondary winding other end ground connection, the negative pole of the first diode links to each other with the collector of the second triode, the base stage of the second triode is connected to single-chip microcomputer by the 4th resistance, the grounded emitter of the second triode, the armature winding of inductance transformer and the first electric capacity one end, the 3rd capacitance cathode, inductance one end links to each other, the inductance other end links to each other with filtered power supply, the armature winding of inductance transformer links to each other with the drain electrode of the first electric capacity other end and metal-oxide-semiconductor the first triode, the minus earth of the 3rd electric capacity, the source electrode of the first triode, the positive pole of the tenth diode links to each other with an end of the 21 resistance and ground connection, the grid of the first triode and the tenth diode cathode, the 21 resistance other end, the 18 electric capacity one end links to each other, the 18 electric capacity be connected to single-chip microcomputer, the first resistance other end ground connection after the first resistance one end links to each other.
As a further improvement on the present invention, described reception signal amplification links to each other with the second electric capacity one end with the 20 electric capacity other end of detecting circuit, the second electric capacity other end is connected to the XIN end of the first chip, G1IN end and the 5th resistance of the first chip, one end of the 6th resistance links to each other, the other end of the 5th resistance links to each other with the XIN end of the first chip, the other end of the 6th resistance links to each other with the GADJ end of the first chip, the LC end of the first chip and an end of the 19 electric capacity and the 6th electric capacity, one end of inductance links to each other, the 19 electric capacity, the 6th electric capacity, the other end of inductance links to each other with the VCC end of the first chip, the G1OUT end of the first chip links to each other with the 21 electric capacity, the other end of the 21 electric capacity links to each other with the G2IN end of the first chip, the BIAS end of the first chip links to each other with an end of the 7th resistance, the 7th resistance other end ground connection, the REC end of the first chip and an end of the 7th electric capacity, the negative pole of voltage stabilizing diode links to each other, the 7th electric capacity other end ground connection, the voltage stabilizing diode positive pole links to each other with the base stage of the 5th triode, the collector of the 5th triode connects single-chip microcomputer, the 5th transistor emitter ground connection, the GND end ground connection of the first chip.
As a further improvement on the present invention, the RST of single-chip microcomputer end is held with the RESET of four-core sheet in described oscillatory circuit and the watchdog circuit, one end of the 8th electric capacity links to each other, the GND termination power of the 8th electric capacity other end and four-core sheet, the CLK end of four-core sheet links to each other with the 9th resistance one end, the 9th resistance other end links to each other with single-chip microcomputer, the VCC end of four-core sheet links to each other with power supply, the VS end of four-core sheet links to each other with the positive pole of the 11 electric capacity, the 11 electric capacity minus earth, the XTAL2 end of single-chip microcomputer and an end of crystal oscillator, one end of the 9th electric capacity links to each other, the XTAL1 end of single-chip microcomputer and the other end of crystal oscillator, one end of the tenth electric capacity links to each other, the 9th electric capacity, ground connection after the other end of the tenth electric capacity links to each other.
As a further improvement on the present invention, the direct supply of described power circuit input links to each other with the second diode cathode, the second diode cathode links to each other with resettable fuse one end, the resettable fuse other end suppresses the negative pole of the 3rd diode, the positive pole of the 5th electric capacity and the Vin end of integrated voltage-stabilized chip with transient state and links to each other, positive pole and the power supply of Vout termination the 4th electric capacity of integrated voltage-stabilized chip connect power supply after the GND end of the 4th electric capacity, the 5th electric capacity negative pole and chip and the 3rd diode cathode link to each other.
As a further improvement on the present invention, described out-expander links to each other with single-chip microcomputer with driving indicating circuit the 5th chip, the 5th chip links to each other with an end of the 8th resistance, the 8th resistance other end links to each other with the 3rd transistor base, the 3rd transistor collector links to each other with an end of the 18 resistance, the 18 other end links to each other with the red LED negative pole of red and green luminous diode, the public anode end of red and green luminous diode links to each other with the emitter of the 6th triode, the collector of the 6th triode links to each other with power supply, the 6th transistor base links to each other with the 22 resistance one end, the 22 resistance other end links to each other with the 5th chip, the 5th chip links to each other with an end of the 13 resistance, the 13 resistance other end links to each other with the 4th transistor base, the 4th transistor emitter and the 3rd transistor emitter, resettable fuse one end links to each other, resettable fuse other end ground connection, the 4th transistor collector links to each other with the 19 resistance one end, and the 19 resistance other end links to each other with the green LED negative pole of red and green luminous diode.
Compared with the prior art the present invention has the following advantages:
This ultrasound wave parking space detector of the present invention has:
1, transmitting/receiving is integrated, 1CM detection accuracy, investigative range 50cm～6 meter;
2, the DIP toggle switch detects distance multistage adjustable in order to the parameters such as detector address, detection distance to be set;
3, intelligent digital detecting pattern is guaranteed between adjacent detector noiseless;
4, dual-colored LED lamp indication parking stall takies situation;
5, RS422 communication interface, 115.2Kbps, 8 bit strip address communications, efficient is high, and speed is fast;
6, the unified cable interface that adopts, the convenient installation;
7, subregion system, during the system failure, but each zone islet operation, to improve system availability;
8, small and exquisite appearance design, installation of ceiling makes things convenient for engineering construction, maintenance.
Description of drawings
Fig. 1 is the frame principle figure of ultrasound wave parking space detector of the present invention.
Fig. 2 is ultrasonic drive circuit structure principle chart of the present invention.
Fig. 3 is that reception signal of the present invention amplifies and the detecting circuit structure principle chart.
Fig. 4 is oscillatory circuit and the watchdog circuit structure principle chart of single-chip microcomputer of the present invention.
Fig. 5 is RS422 communication circuit chip structure principle chart of the present invention.
Fig. 6 is circuit construction of electric power schematic diagram of the present invention.
Fig. 7 is input/output expander of the present invention and drives the indicating circuit structure principle chart.
Fig. 8 is that input expander of the present invention and parameter arrange toggle switch circuit structure schematic diagram.
Embodiment
The invention will be further described below in conjunction with concrete drawings and Examples.
Shown in Fig. 1: effectively detect in order to use ultrasound wave that the parking stall is taken situation, the present invention includes for detection of the ultrasonic sensor driving circuit, the input end of described driving circuit links to each other with single-chip microcomputer, make single-chip microcomputer send drive control signal, output terminal links to each other with ultrasonic sensor; Ultrasonic sensor and amplify with described reception signal links to each other with the input end of detecting circuit, receive echoed signal and amplify, detect processing, the output terminal that receives signal amplification and detecting circuit is connected to single-chip microcomputer, its gain control end is connected to one-chip machine port by out-expander, make the Single-chip Controlling signal gain, receive simultaneously echo-pulse and carry out the data processing; Described oscillatory circuit links to each other with the single-chip microcomputer corresponding port with watchdog circuit, realizes that single-chip microcomputer reliably works; The TTL serial communication port of described RS-422 telecommunication circuit links to each other with the single chip communication mouth, is used for communicating with regional main control computer; Described power circuit input end links to each other with outside 24V direct current, links to each other with the each several part circuit power behind filtering voltage regulation; Described driving indicating circuit links to each other with one-chip machine port by out-expander, realizes the LED light indicating operating status; Described input expander is used for connecting toggle switch, with parameters input single-chip microcomputer.
The present invention for detection of the ultrasound wave parking space detector be located at parking stall top and constantly send pulsed ultrasonic wave downwards, receive simultaneously the ultrasonic pulse-echo of this below, parking stall, MCU in the detecting device is by calculating, can detect each parking stall has or not vehicle to take, indicate this detecting device to communicate with computing machine by dual-colored LED, cross bus and pass to the Region control computing machine so that each parking stall takies the information exchange of situation, processed by software by computing machine, the relevant demonstration of time update information display screen stops car into the room fast with the guiding driver;
As shown in Figure 2:
The ultrasonic transmission/reception integrative sensor of described driving circuit is anodal anodal with the 8th diode D8, the 9th diode D9 negative pole and CON1(the 20 capacitor C 20 1 ends) link to each other, the ultrasonic sensor negative pole meets power supply GND, the 8th diode D8 negative pole, the 9th diode D9 is anodal, the first diode D1 is anodal to link to each other with 1 pin of inductance transformer secondary winding T1, the inductance transformer secondary winding T1 other end (Same Name of Ends, 3 pin) meet GND, the negative pole of the first diode D1 links to each other with the collector of the second triode Q2, the base stage of the second triode Q2 is connected to the P3.4 pin (DAMP) of single-chip microcomputer (U3) by the 4th resistance R 4, the emitter of the second triode Q2 meets GND, 2 pin of the armature winding T1 of inductance transformer and the first capacitor C 1 one ends, the 3rd capacitor C 3 positive poles, inductance L 1 one ends link to each other, inductance L 1 other end links to each other with filtered+24VDC power supply, armature winding T1 4 pin (Same Name of Ends) of inductance transformer link to each other with the drain electrode of the first capacitor C 1 other end and metal-oxide-semiconductor the first triode Q1, the negative pole of the 3rd capacitor C 3 meets GND, the source electrode of the first triode Q1, one end of the positive pole of the tenth diode D10 and the 21 resistance R 21 links to each other and meets GND, the grid of the first triode Q1 and the tenth diode D10 negative pole, the 21 resistance R 21 other ends, the 18 capacitor C 18 1 ends link to each other, the 18 capacitor C 18 and the P3.7 end that is connected to the SPOUT(single-chip microcomputer after the first resistance R 1 one ends link to each other), the first resistance R 1 another termination GND.
Described ultrasonic sensor driving circuit adopts metal-oxide-semiconductor P75N75 as the switch drive pipe, and the 24V direct current is after LC filtering, and is in parallel with C1 by inductance transformer T1 armature winding, and D, the S through metal-oxide-semiconductor P75N75 holds GND again.When single-chip microcomputer generation 40KHz driving pulse was delivered to the SPOUT end, P75N75 conducting when pulse high level ended during low level, thereby sent ultrasound wave at the secondary generation 40KHz high-voltage signal of transformer T1 to drive ultrasonic sensor.The first diode D1 and the second triode Q2 eliminate the repercussions circuit, and single-chip microcomputer makes the second triode Q2 conducting by the DAMP end after pulse sends end, consumes fast resonant energy, reaches the purpose of eliminating repercussions.
As shown in Figure 3:
Described reception signal amplification links to each other with the second capacitor C 2 one ends with the 20 capacitor C 20 other ends of detecting circuit, the second capacitor C 2 other ends are connected to the XIN end of the first chip, G1IN end and the 5th resistance R 5 of the first chip U1, one end of the 6th resistance R 6 links to each other, the other end of the 5th resistance R 5 links to each other with the XIN end of the first chip U1, the other end of the 6th resistance R 6 links to each other with the GADJ end of the first chip U1, the LC end of the first chip U1 and an end of the 19 capacitor C 19 and the 6th capacitor C 6, one end of inductance L 2 links to each other, the 19 capacitor C 19, the 6th capacitor C 6, the other end of inductance L 2 links to each other with the VCC end of power supply+5V (VCC) and the first chip U1, the G1OUT end of the first chip U1 links to each other with the 21 capacitor C 21, the other end of the 21 capacitor C 21 links to each other with the G2IN of the first chip U1, the BIAS of the first chip U1 links to each other with an end of the 7th resistance R 7, the 7th resistance R 7 another termination GND, the REC end of the first chip U1 and an end of the 7th capacitor C 7, the negative pole of voltage stabilizing diode D11 links to each other, the 7th capacitor C 7 another termination GND, voltage stabilizing diode D11 positive pole links to each other with the base stage of the 5th triode Q5, the collector of the 5th triode Q5 connects the P3.2 end of ECHO(single-chip microcomputer), the 5th triode Q5 emitter meets GND, the GCC of the first chip U1, GCB, GCA, the GCD end meets respectively GCC, GCB, GCA, GCD, the GND of the first chip U1 meets power supply GND.
Described reception signal amplifies and detecting circuit employing ultrasound wave reception signal processing chip TL852, the ultrasonic echo signal is connected to TL852 input end XIN through the 20 capacitor C 20, the second capacitor C 2, amplify via inside, after processing by inductance L 2, the 19 capacitor C 19,6 frequency-selectings of the 6th capacitor C and by chip, at REC end output echo-pulse, through the 11 diode D11 rear drive the 5th triode Q5 output low level.
As shown in Figure 4:
The RST of single-chip microcomputer U3 end is held with the RESET of four-core sheet U4 in described oscillatory circuit and the watchdog circuit, one end of the 8th capacitor C 8 links to each other, the GND termination power GND of the 8th capacitor C 8 other ends and four-core sheet U4, the CLK end of four-core sheet U4 links to each other with the 9th resistance R 9 one ends, the 9th resistance R 9 other ends link to each other with the P3.5 end (WTHDOG) of single-chip microcomputer U3, the VCC of four-core sheet U4 end links to each other with+5V power supply (VCC), the VS end of four-core sheet U4 links to each other with the positive pole of the 11 capacitor C 11, the 11 capacitor C 11 negative poles meet GND, the XTAL2 end of single-chip microcomputer U3 and the end of crystal oscillator Y1, one end of the 9th capacitor C 9 links to each other, the XTAL1 end of single-chip microcomputer U3 and the other end of crystal oscillator Y1, one end of the tenth capacitor C 10 links to each other, the 9th capacitor C 9, the other end of the tenth capacitor C 10 meets GND after linking to each other.
Described oscillatory circuit and watchdog circuit comprise crystal oscillator Y1, watchdog chip NE56604.Crystal oscillator Y1, the 9th capacitor C 9, the tenth capacitor C 10 consist of the oscillatory circuit of single-chip microcomputer STC12C2052AD, make the single-chip microcomputer normal operation; NE56604, the 9th electric capacity R9, the 8th capacitor C 8, the 11 capacitor C 11 consist of watchdog reset circuit, and when the single-chip microcomputer abnormal did not produce the watchdog reset signal, watchdog circuit just produced the reset enable signal monolithic processor resetting, recovered its normal operation.
As shown in Figure 5:
The RO end of described RS-422 communication circuit chip U8 links to each other with the RXD end of single-chip microcomputer U3, RS-422 communication circuit chip U8 /RE end and GND meet power supply GND after holding and linking to each other, the DE end of RS-422 communication circuit chip U8 and an end of the 3rd resistance R 3, the P3.3 end (DE) of single-chip microcomputer U3 links to each other, the 3rd resistance R 3 another termination GND, the DI end of RS-422 communication circuit chip U8 links to each other with the TXD end of single-chip microcomputer U3, the Y end of RS-422 communication circuit chip U8 links to each other with an end of the tenth resistance R 10, the tenth resistance R 10 other ends and the 7th diode D7 negative pole, the 16 resistance R 16 1 ends link to each other, the 16 resistance R 16 another termination TXD+L, the Z end of RS-422 communication circuit chip U8 links to each other with an end of the 20 resistance R 20, the negative pole of the other end of the 20 resistance R 20 and the 6th diode D6, one end of the 17 resistance R 17 links to each other, the 17 resistance R 17 another termination TXD-L, B end and the 5th diode D5 negative pole of RS-422 communication circuit chip U8, one end of the 15 resistance R 15 links to each other, the 15 resistance R 15 another termination RXD-L, A end and the 4th diode D4 negative pole of RS-422 communication circuit chip U8, one end of the 14 resistance R 14 links to each other, the 14 resistance R 14 another termination RXD+L, the 4th diode D4, the 5th diode D5, the 6th diode D6, the positive pole of the 7th diode D7 meets GND, and the VCC end of RS-422 communication circuit chip U8 links to each other with power supply VCC.
Described RS-422 communication circuit chip adopts the MAX489 communication chip, and RO connects the RXD end of single-chip microcomputer, and the first diode DI connects single-chip microcomputer TXD end, RE termination GND receives for allowing all the time, whether DE connects the 3rd resistance R 3 to GND, and is connected to one-chip machine port, send in order to control.Other resistance and diode are holding circuit, protection chip communication port.The RS-422 telecommunication circuit provides between single-chip microcomputer and the regional host computer can carry out proper communication in longer distance range.
As shown in Figure 6:
Described power circuit input+the 24V direct supply (+24VDCP) link to each other with the second diode D2 is anodal, the second diode D2 negative pole links to each other with resettable fuse R2 one end, the resettable fuse R2 other end and transient state suppress negative pole, the 5th capacitor C 5 of the 3rd diode D3 positive pole ,+the Vin end of 24VDC and integrated voltage-stabilized chip U2 links to each other, the positive pole of Vout termination the 4th capacitor C 4 of integrated voltage-stabilized chip U2 and VCC(power supply+5VDC), after linking to each other, the GND of the 4th capacitor C 4, the 5th capacitor C 5 negative poles and chip U2 end and the 3rd diode D3 positive pole meet power supply GND.
Comprise described power circuit diode D2, resettable fuse R2, transient state suppress the 3rd diode D3, the 4th filter capacitor C4, the 5th filter capacitor C5 and three end integrated voltage stabilizer K7805-500 etc.Be mainly circuit reliable and stable 24V direct current and 5V direct supply is provided.
As shown in Figure 7:
Described out-expander links to each other with the P1.6 end (SDODATA) of single-chip microcomputer U3 with the SER end that drives indicating circuit the 5th chip U5, the SRCLK end of the 5th chip U5 links to each other with the P1.5 end (SDOCLK) of single-chip microcomputer U3, the RCLK end of the 5th chip U5 links to each other with the P1.4 end (SDOLATCH) of single-chip microcomputer U3, the 5th chip U5 /SRCLR end links to each other with power supply VCC, the E termination GND of the 5th chip U5, the O0 of the 5th chip U5, O1, O2, O3 end respectively with the GCA of the first chip U1, GCB, GCC, the GCD end links to each other, the O5 end of the 5th chip U5 links to each other with an end of the 8th resistance R 8, the 8th resistance R 8 other ends link to each other with the 3rd triode Q3 base stage, the 3rd triode Q3 collector and/REDLED, one end of the 18 resistance R 18 links to each other, the 18 R18 other end links to each other with the red LED negative pole (KR end) of red and green luminous diode DD1, the public anode end of red and green luminous diode DD1 (A end) links to each other with the emitter of the 6th triode Q6, the collector of the 6th triode Q6 links to each other with+24VDC, the 6th triode Q6 base stage links to each other with the 22 resistance R 22 1 ends, the 22 resistance R 22 other ends link to each other with the O7 end (DETECT-LED) of the 5th chip U5, the O6 end of the 5th chip U5 links to each other with an end of the 13 resistance R 13, the 13 resistance R 13 other ends link to each other with the 4th triode Q4 base stage, the 4th triode Q4 emitter and the 3rd triode Q3 emitter, resettable fuse R23 one end links to each other, another termination of resettable fuse R23 GND, the 4th triode Q4 collector and/GREENLED, the 19 resistance R 19 1 ends link to each other, the 19 resistance R 19 other ends link to each other with the green LED negative pole (KG end) of red and green luminous diode DD1, and the VCC of the 5th chip U5 and GND end meet respectively power supply VCC and GND.
Described input/output expander and driving indicating circuit adopt chip 74HC595 to expand as delivery outlet, chip CD4021 expands as the input port, adopts three C1008 the 3rd triode Q3, the 4th triode Q4, the 6th triode Q6 as the driving tube of LED light.Toggle switch is used for arranging slave addresses, packet numbering, threshold values distance parameter.After single-chip microcomputer captures echo-pulse, calculate distance according to the time that detects and the velocity of sound, judged whether that apart from threshold values vehicle takies according to high 4 settings of toggle switch S3 again.If detected distance greater than arrange apart from threshold values, represent that then the parking stall is empty, green LED is bright; Otherwise the expression parking stall takies, and red LED is bright.
As shown in Figure 8
Described input expander and parameter arrange the P1 of the 6th chip U6 of toggle switch circuit ~ P8 end respectively with 1 ~ 8 pin of the second toggle switch S2,9 ~ 2 pin of the 11 exclusion R11 link to each other, incorporate into go here and there out the P1 of the 7th chip U7 ~ P8 end respectively with 1 ~ 8 pin of the 3rd toggle switch S3,9 ~ 2 pin of the 12 exclusion R12 link to each other, the second toggle switch S2,9 ~ 16 pin of the 3rd toggle switch S3 meet GND after linking to each other, the 11 exclusion R11,1 pin of the 12 exclusion R12 all meets VCC, the P/S of the 6th chip U6 end is held with the P1.0 that meets SDILATCH(single-chip microcomputer U3 after the P/S end of the 7th chip U7 links to each other), the CLK of the 6th chip U6 end is held with the P1.1 that meets SDICLK(single-chip microcomputer U3 after the CLK end of the 7th chip U7 links to each other), the 8th triode Q8 end of the 6th chip U6 links to each other with the DS end of the 7th chip U7, the DS termination GND of the 6th chip U6, the P1.2 end of the 8th triode Q8 termination SDIDATA(single-chip microcomputer U3 of the 7th chip U7), the 6th chip U6, the VCC termination power VCC of the 7th chip U7, the 6th chip U6, the GND termination power GND of the 7th chip U7.
Such as Fig. 1～shown in Figure 8: during use, the ultrasound wave parking space detector should connect power lead and order wire, sets correlation parameter with toggle switch.During work, after single-chip microcomputer is received the detection instruction of main frame, single-chip microcomputer P3.7 mouth produces the grid that N 40KHz driving pulse delivered to metal-oxide-semiconductor Q1, so that Q1 conducting and cut-off, thereby sends ultrasound wave at the high-voltage signal of the secondary generation alternation of transformer T1 with the driving ultrasonic sensor.The first diode D1 and the 3rd triode Q2 eliminate the repercussions circuit, and single-chip microcomputer makes the Q2 conducting by the P3.4 pin after pulse sends end, consumes fast resonant energy, reaches the purpose of eliminating repercussions.After ultrasound wave sent, single-chip microcomputer just began timing, the ride gain of regulating in time the first chip U1 simultaneously.After ultrasonic sensor is received echo, because the amplitude limit effect of the 8th diode D8, the 9th diode D9, so that faint echoed signal enters the XIN end of the first chip U1 via the 20 capacitor C 20, the 2nd C2, amplify and detecting circuit through signal, at REC end output echo-pulse, through the 11 electric capacity D11 rear drive the 5th triode Q5 output low level.After single-chip microcomputer captures echoed signal, just can calculate distance according to the time that detects and the velocity of sound, thereby again according to high 4 settings of toggle switch S3 judged whether that apart from threshold values vehicle takies, and indicate the situation that takies of parking stall by the 3rd triode Q3, the 4th triode Q4, the bright different color of the 6th triode Q6 driving LED lamp.If detected distance greater than arrange apart from threshold values, represent that then the parking stall is empty, green LED is bright; Otherwise the expression parking stall takies, and red LED is bright.
The present invention adopts transmitting/receiving integrative ultrasonic wave sensor, and detection accuracy is high, the detection distance, and use cost is low; Intelligent digital detects, and highly sensitive, antijamming capability is strong; RS422 communications distance; Subregion system, but each zone islet operation are to improve system availability; The unified cable interface that adopts, the convenient installation, safe and reliable.
The present invention utilizes the ultrasound wave parking space detector constantly to send pulsed ultrasonic wave downwards above the parking stall, receive simultaneously the ultrasonic pulse-echo of this below, parking stall, MCU in the detecting device can detect each parking stall and have or not vehicle to take by calculating, and indicates by dual-colored LED.This detecting device can communicate with computing machine, cross bus and pass to the Region control computing machine so that each parking stall takies the information exchange of situation, processed by software by computing machine, the relevant demonstration of time update information display screen stops car into the room fast with the guiding driver.
Claims (6)
1. the circuit structure of a ultrasound wave parking space detector is characterized in that: comprise single-chip microcomputer, ultrasonic drive circuit, ultrasonic sensor, the amplification of reception signal and detecting circuit, gain control end, out-expander, input expander, oscillatory circuit, watchdog circuit, RS-422 communication circuit chip, drive indicating circuit, toggle switch and power circuit;
The input end of described ultrasonic drive circuit links to each other with single-chip microcomputer, makes single-chip microcomputer send drive control signal, and output terminal links to each other with ultrasonic sensor;
Described ultrasonic sensor links to each other with the input end of detecting circuit with described reception signal amplification, receives echoed signal and amplifies, detects processing, and the output terminal that receives signal amplification and detecting circuit is connected to single-chip microcomputer;
Described gain control end is connected to one-chip machine port by out-expander, makes the Single-chip Controlling signal gain, receives simultaneously echo-pulse and carries out the data processing;
Described oscillatory circuit links to each other with the single-chip microcomputer corresponding port respectively with watchdog circuit, realizes that single-chip microcomputer reliably works;
The TTL serial communication port of described RS-422 communication circuit chip links to each other with the single chip communication mouth, is used for communicating with regional main control computer;
Described power circuit input end links to each other with outside 24V direct current, links to each other with the each several part circuit power behind filtering voltage regulation;
Described driving indicating circuit links to each other with one-chip machine port by out-expander, realizes the LED light indicating operating status;
Described input expander is used for connecting toggle switch, with parameters input single-chip microcomputer;
The circuit of described ultrasound wave parking space detector is arranged on the top, parking stall and constantly sends pulsed ultrasonic wave downwards, receive simultaneously the ultrasonic pulse-echo of this below, parking stall, MCU in the detecting device is by calculating, can detect each parking stall has or not vehicle to take, indicate this detecting device and computing machine to communicate by dual-colored LED, cross bus and pass to the Region control computing machine so that each parking stall takies the information exchange of situation, processed by software by computing machine, the relevant demonstration of time update information display screen stops car into the room fast with the guiding driver.
2. the circuit structure of ultrasound wave parking space detector as claimed in claim 1, it is characterized in that: described ultrasonic drive circuit adopts ultrasonic sensor positive pole and the 8th diode (D8) positive pole, the 9th diode (D9) negative pole and receiving terminal link to each other, the ultrasonic sensor negative pole connects power supply, the 8th diode (D8) negative pole, the 9th diode (D9) positive pole, the first diode (D1) is anodal to link to each other with 1 pin of inductance transformer secondary winding (T1), 3 pin ground connection of inductance transformer secondary winding (T1) other end, the negative pole of the first diode (D1) links to each other with the collector of the second triode (Q2), the base stage of the second triode (Q2) is connected to the P3.4 pin of single-chip microcomputer (U3) by the 4th resistance (R4), the grounded emitter of the second triode (Q2), 2 pin of the armature winding of inductance transformer (T1) and the first electric capacity (C1) end, the 3rd electric capacity (C3) positive pole, inductance (L1) end links to each other, inductance (L1) other end links to each other with filtered power supply, 4 pin of the armature winding of inductance transformer (T1) link to each other with the drain electrode of the first electric capacity (C1) other end and metal-oxide-semiconductor the first triode (Q1), the minus earth of the 3rd electric capacity (C3), the source electrode of the first triode (Q1), the positive pole of the tenth diode (D10) links to each other with an end of the 21 resistance (R21) and ground connection, the grid of the first triode (Q1) and the tenth diode (D10) negative pole, the 21 resistance (R21) other end, the 18 electric capacity (C18) end links to each other, the 18 electric capacity (C18) be connected to single-chip microcomputer, the first resistance (R1) other end ground connection after the first resistance (R1) end links to each other.
3. the circuit structure of ultrasound wave parking space detector as claimed in claim 1 is characterized in that: described
Receive signal and amplify (XIN) end that passes through the 20 electric capacity (C20) and the second electric capacity (C2) series connection to the first chip U1 with the 20 electric capacity (C20) end of detecting circuit, (G1IN) end and the 5th resistance (R5) of the first chip U1, one end of the 6th resistance (R6) links to each other, the other end of the 5th resistance (R5) links to each other with (XIN) end of the first chip U1, the other end of the 6th resistance (R6) links to each other with (GADJ) end of the first chip U1, (LC) end of the first chip U1 and an end of the 19 electric capacity (C19) and the 6th electric capacity (C6), one end of inductance (L2) links to each other, the 19 electric capacity (C19), the 6th electric capacity (C6), the other end of inductance (L2) links to each other with (VCC) end of the first chip U1, (G1OUT) end of the first chip U1 links to each other with the 21 electric capacity (C21), the other end of the 21 electric capacity (C21) links to each other with (G2IN) end of the first chip U1, (BIAS) end of the first chip U1 links to each other with an end of the 7th resistance (R7), the 7th resistance (R7) other end ground connection, (REC) end of the first chip U1 and an end of the 7th electric capacity (C7), the negative pole of voltage stabilizing diode (D11) links to each other, the 7th electric capacity (C7) other end ground connection, voltage stabilizing diode (D11) is anodal to link to each other with the base stage of the 5th triode (Q5), the collector of the 5th triode (Q5) connects single-chip microcomputer, the 5th triode (Q5) grounded emitter, (GND) termination power of the first chip U1.
4. the circuit structure of ultrasound wave parking space detector as claimed in claim 1, it is characterized in that: single-chip microcomputer U3 (RST) end is held with four-core sheet U4 (RESET) in described oscillatory circuit and the watchdog circuit, one end of the 8th electric capacity (C8) links to each other, (GND) termination power of the 8th electric capacity (C8) other end and four-core sheet U4, (CLK) end of four-core sheet U4 links to each other with the 9th resistance (R9) end, the 9th resistance (R9) other end links to each other with the P3.5 end of single-chip microcomputer U3, (VCC) end of four-core sheet U4 links to each other with power supply, (VS) end of four-core sheet U4 links to each other with the positive pole of the 11 electric capacity (C11), the 11 electric capacity (C11) minus earth, (XTAL2) end of single-chip microcomputer U3 and an end of crystal oscillator (Y1), one end of the 9th electric capacity (C9) links to each other, (XTAL1) end of single-chip microcomputer U3 and the other end of crystal oscillator (Y1), one end of the tenth electric capacity (C10) links to each other, the 9th electric capacity (C9), ground connection after the other end of the tenth electric capacity (C10) links to each other.
5. the circuit structure of ultrasound wave parking space detector as claimed in claim 1 is characterized in that: described
The direct supply of power circuit input links to each other with the second diode (D2) is anodal, the second diode (D2) negative pole links to each other with resettable fuse (R2) end, resettable fuse (R2) other end and transient state suppress the negative pole of the 3rd diode (D3), the positive pole of the 5th electric capacity (C5), (Vin) end of+24VDC and integrated voltage-stabilized chip U2 links to each other, positive pole and the power supply of (Vout) termination the 4th electric capacity (C4) of integrated voltage-stabilized chip U2, the 4th electric capacity (C4), after linking to each other, (GND) end of the 5th electric capacity (C5) negative pole and chip U2 and the 3rd diode (D3) positive pole connect power supply.
6. the circuit structure of ultrasound wave parking space detector as claimed in claim 1, it is characterized in that: described out-expander links to each other with the P1.6 end (SDODATA) of single-chip microcomputer U3 with (SER) end that drives indicating circuit the 5th chip U5, (O5) end of the 5th chip U5 links to each other with an end of the 8th resistance (R8), the 8th resistance (R8) other end links to each other with the 3rd triode (Q3) base stage, output terminal/the REDLED of the 3rd triode (Q3) collector and red LED, one end of the 18 resistance (R18) links to each other, the 18 (R18) other end links to each other with the red LED negative pole (KR end) of red and green luminous diode (DD1), the public anode end of red and green luminous diode (DD1) (A end) links to each other with the emitter of the 6th triode (Q6), the collector of the 6th triode (Q6) with+24(VDC) link to each other, the 6th triode (Q6) base stage links to each other with the 22 resistance (R22) end, the 22 resistance (R22) other end links to each other with (O7) end of the 5th chip U5, (O6) end of the 5th chip U5 links to each other with an end of the 13 resistance (R13), the 13 resistance (R13) other end links to each other with the 4th triode (Q4) base stage, the 4th triode (Q4) emitter and the 3rd triode (Q3) emitter, resettable fuse (R23) end links to each other, resettable fuse (R23) other end ground connection, output terminal/the GREENLED of the 4th triode (Q4) collector and green LED, the 19 resistance (R19) end links to each other, and the 19 resistance (R19) other end links to each other with the green LED negative pole (KG end) of red and green luminous diode (DD1).
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292868A (en) * | 2013-06-17 | 2013-09-11 | 成都荣耀科技有限公司 | Ultrasonic emitting module of water-immersion monitoring subsystem in transformer substation auxiliary system |
| CN103344302A (en) * | 2013-06-17 | 2013-10-09 | 成都荣耀科技有限公司 | Ultrasonic wave transmission circuit of water leaching monitoring system |
| CN103944145A (en) * | 2014-05-12 | 2014-07-23 | 湖南主导科技发展有限公司 | Electric water pump intelligent protector with setting parameter presetting device |
| CN104897249A (en) * | 2015-06-24 | 2015-09-09 | 中国地质大学（武汉） | Ultrasonic flow measuring test device and measuring method |
| CN105346446A (en) * | 2015-12-11 | 2016-02-24 | 成都翰兴科技有限公司 | Signal self-enhancement type underground parking lot reversing aid system |
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| CN107067809A (en) * | 2017-05-22 | 2017-08-18 | 西安天济网络科技有限公司 | A kind of smart city cloud computing parking management information system |
| CN108271295A (en) * | 2018-01-31 | 2018-07-10 | 四川驿停车智慧科技有限公司 | A kind of parking energy efficient lighting system |
| CN110703235A (en) * | 2019-10-29 | 2020-01-17 | 南京俊禄科技有限公司 | Ultrasonic measurement system and method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100281670B1 (en) * | 1997-12-31 | 2001-02-15 | 김헌출 | Communication Method Using Ultrasonic Sensor of Parking Guidance System |
| CN201107408Y (en) * | 2007-11-26 | 2008-08-27 | 武光杰 | Ultrasonic induction module |
| CN201590167U (en) * | 2009-09-16 | 2010-09-22 | 北京国人正方科技有限公司 | Ultrasonic parking lot detection device |
| CN201590162U (en) * | 2009-12-25 | 2010-09-22 | 东莞市帕马智能停车服务有限公司 | Vehicle detector circuit |
| CN202454091U (en) * | 2011-12-29 | 2012-09-26 | 中国船舶重工集团公司第七一○研究所 | Parking space detection device |
| CN202904899U (en) * | 2012-11-01 | 2013-04-24 | 江苏大为科技股份有限公司 | Circuit structure of ultrasonic parking spot detector |
-
2012
- 2012-11-01 CN CN201210433785.2A patent/CN102930742B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100281670B1 (en) * | 1997-12-31 | 2001-02-15 | 김헌출 | Communication Method Using Ultrasonic Sensor of Parking Guidance System |
| CN201107408Y (en) * | 2007-11-26 | 2008-08-27 | 武光杰 | Ultrasonic induction module |
| CN201590167U (en) * | 2009-09-16 | 2010-09-22 | 北京国人正方科技有限公司 | Ultrasonic parking lot detection device |
| CN201590162U (en) * | 2009-12-25 | 2010-09-22 | 东莞市帕马智能停车服务有限公司 | Vehicle detector circuit |
| CN202454091U (en) * | 2011-12-29 | 2012-09-26 | 中国船舶重工集团公司第七一○研究所 | Parking space detection device |
| CN202904899U (en) * | 2012-11-01 | 2013-04-24 | 江苏大为科技股份有限公司 | Circuit structure of ultrasonic parking spot detector |
Non-Patent Citations (1)
| Title |
|---|
| 高旭东，曹珊珊: "超声波车位检测器系统设计", 《黑龙江科技信息》, no. 3, 31 March 2008 (2008-03-31), pages 31 - 195 * |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292868A (en) * | 2013-06-17 | 2013-09-11 | 成都荣耀科技有限公司 | Ultrasonic emitting module of water-immersion monitoring subsystem in transformer substation auxiliary system |
| CN103344302A (en) * | 2013-06-17 | 2013-10-09 | 成都荣耀科技有限公司 | Ultrasonic wave transmission circuit of water leaching monitoring system |
| CN103944145A (en) * | 2014-05-12 | 2014-07-23 | 湖南主导科技发展有限公司 | Electric water pump intelligent protector with setting parameter presetting device |
| CN104897249A (en) * | 2015-06-24 | 2015-09-09 | 中国地质大学（武汉） | Ultrasonic flow measuring test device and measuring method |
| CN104897249B (en) * | 2015-06-24 | 2018-01-05 | 中国地质大学（武汉） | A kind of measuring ultrasonic wave flow experimental rig and measuring method |
| CN105510922A (en) * | 2015-12-11 | 2016-04-20 | 成都翰兴科技有限公司 | Underground parking lot backing auxiliary system based on flash lamp control circuit |
| CN105445742A (en) * | 2015-12-11 | 2016-03-30 | 成都翰兴科技有限公司 | Underground parking lot parking auxiliary system based on gain control circuit |
| 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 |
| CN105416204A (en) * | 2015-12-11 | 2016-03-23 | 成都翰兴科技有限公司 | Underground parking lot vehicle backing auxiliary system based on high-sensitivity ultrasonic receiving circuit |
| CN105522964A (en) * | 2015-12-11 | 2016-04-27 | 成都翰兴科技有限公司 | High-sensitivity gain type flashing reversing aid system for underground parking garage |
| CN105346446A (en) * | 2015-12-11 | 2016-02-24 | 成都翰兴科技有限公司 | Signal self-enhancement type underground parking lot reversing aid system |
| CN107067809A (en) * | 2017-05-22 | 2017-08-18 | 西安天济网络科技有限公司 | A kind of smart city cloud computing parking management information system |
| CN108271295A (en) * | 2018-01-31 | 2018-07-10 | 四川驿停车智慧科技有限公司 | A kind of parking energy efficient lighting system |
| CN110703235A (en) * | 2019-10-29 | 2020-01-17 | 南京俊禄科技有限公司 | Ultrasonic measurement system and method thereof |
| CN111308933A (en) * | 2020-02-25 | 2020-06-19 | 广东省智能制造研究所 | Internet of things data acquisition system based on FPGA |
| CN111308933B (en) * | 2020-02-25 | 2021-11-05 | 广东省智能制造研究所 | Internet of things data acquisition system based on FPGA |
| CN113554383A (en) * | 2021-03-04 | 2021-10-26 | 江苏安方电力科技有限公司 | Method and system for distributing bin positions of electric power materials |
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Address after: 214101 Xishan Economic Development Zone, Jiangsu Province, science and Technology Industrial Park, No. 1, No. Patentee after: Jiangsu aerospace Polytron Technologies Inc Address before: 214101 Xishan, Jiangsu, East Road, South District, No. 39, No. Patentee before: Jiangsu Daway Technologies Co., Ltd. |