CN201584060U - Detection instrument for superelevation of vehicle - Google Patents
Detection instrument for superelevation of vehicle Download PDFInfo
- Publication number
- CN201584060U CN201584060U CN201020019689XU CN201020019689U CN201584060U CN 201584060 U CN201584060 U CN 201584060U CN 201020019689X U CN201020019689X U CN 201020019689XU CN 201020019689 U CN201020019689 U CN 201020019689U CN 201584060 U CN201584060 U CN 201584060U
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- sensor array
- power supply
- vehicle
- chip microcomputer
- detection
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Abstract
The utility model discloses a detection instrument for the superelevation of a vehicle, which comprises a light screen comprising a transmission sensor array and a reception sensor array which are arranged at both ends of a detection line of a detection station, wherein the transmission sensor array is connected with a first single chip computer by a first signal processing circuit, and a power supply is provided by a first power supply module; the reception sensor array is connected with a second single chip computer by a second signal processing circuit, and a power supply is provided by a second power supply module; and the second single chip computer is communicated with an upper computer by a serial port communication module. When a vehicle passes through the detection line, the transmission sensor array and the reception sensor which are at both ends of the detection line of the detection station collect a height signal of the vehicle, the signal is transmitted to the respective single chip computers after the signal passes through the respective switching circuits, the single chip computers carry out data processing, and finally, a height result is output. The utility model has cheap manufacturing cost, convenient assembly and accurate measurement and can be widely applied to the height detection and the superelevation detection of the vehicle.
Description
Technical field
The utility model relates to automobile superelevation detection range, relates to a kind of detector, particularly a kind of vehicle superelevation detector.
Background technology
The measurement of vehicle superelevation is the important component part of highway safety monitoring content, and the superelevation height can provide corresponding charge parameter for the highway charge system.Main height measurement method mainly contains at present:
One, camera is surveyed highly, and this method needs high-definition camera and image processing algorithm, and complex structure, cost are higher.
Two, single light source superelevation pick-up unit, this method at first poor stability can't solve the antijamming capability of lamp, secondly can't accurately reflect the superelevation height.
Summary of the invention
At defective or deficiency that above-mentioned prior art exists, the purpose of this utility model is, a kind of vehicle superelevation detector is provided, the superelevation height that this vehicle superelevation detector is easy to assembly, low price, antijamming capability are strong, can accurately reflect vehicle.
In order to realize above-mentioned task, the utility model is taked following technical solution:
A kind of vehicle superelevation detector, it is characterized in that, comprise the light curtain that the emission sensor array that is arranged on measuring station detection line two ends and receiving sensor array are formed, the emission sensor array is connected with first single-chip microcomputer by first signal processing circuit, provides power supply by first power module; The receiving sensor array is connected with second singlechip by the secondary signal treatment circuit, provides power supply by the second source module; Wherein, second singlechip connects and is connected communication by serial communication modular with host computer.
Other characteristics of the present utility model are:
Described emission sensor array and receiving sensor array selective light electric switch.This optoelectronic switch is the correlation optoelectronic switch.
Described first, second single-chip microcomputer is all selected the freescale single-chip microcomputer.
Described first, second power module is all selected the 70w Switching Power Supply, with provide not ground altogether+power supply of 12v and+5v, give first signal processing circuit, secondary signal treatment circuit and first single-chip microcomputer, second singlechip power supply.
Described serial communication modular adopts the R232 level shifting circuit.
Vehicle superelevation detector of the present utility model, actual superelevation height for measuring vehicle, adopt emission sensor array and receiving sensor array to form the light curtain and improve measuring accuracy, and the employing phase algorithm overcomes the interference between the optoelectronic switch, adopt 16 single-chip microcomputers that data are analyzed and handled, when improving data processing precision, improved data processing speed, can finish kinetic measurement to the vehicle superelevation.
Description of drawings
Fig. 1 is a vehicle superelevation detector hardware johning knot composition of the present utility model;
Fig. 2 is that emission sensor array and receiving sensor array are formed light curtain installation design sketch;
Fig. 3 is an optoelectronic switch scheme of installation of the present utility model;
Fig. 4 is a photoelectric switching signal output conversion circuit schematic diagram;
Fig. 5 is photoelectric switching signal input change-over circuit schematic diagram;
Fig. 6 is interference effect figure;
Fig. 7 is a signal phase method schematic diagram;
Fig. 8 sends data flowchart for single-chip microcomputer;
Fig. 9 receives flow chart of data processing figure for single-chip microcomputer;
Figure 10 is singlechip serial port communication circuit figure.
Be described in further details below in conjunction with accompanying drawing with to of the present utility model.
Embodiment
With reference to Fig. 1, vehicle superelevation detector of the present utility model, comprise the light curtain that the emission sensor array that is arranged on measuring station detection line two ends and receiving sensor array are formed, the emission sensor array is connected with single-chip microcomputer 1 by first signal processing circuit, provides power supply by first power module 1; The receiving sensor array is connected with single-chip microcomputer 2 by the secondary signal treatment circuit, provides power supply by second source module 2; Wherein, single-chip microcomputer 2 is by serial communication modular and upper machine communication.
Described emission sensor array and receiving sensor array selective light electric switch.This optoelectronic switch is the correlation optoelectronic switch.
Since be in great demand (40) of I/O mouth, detection of dynamic height rate request height, and can communicate by letter with host computer.So single-chip microcomputer 1 and single-chip microcomputer 2 are all selected the MC9S12DG128 single-chip microcomputer of freescale.The characteristics of this single-chip microcomputer: adopted the 5V power supply, the bus speed of 25MHZ has the online programming ability, and the abundant I/O module and the communication module of Industry Control special use are arranged.
Emission sensor array and receiving sensor array adopt four No. ten optoelectronic switches, and the emission receiving range can reach 15 meters, has wherein adopted optical modulation in the treatment circuit of optoelectronic switch, can resist daylight and disturb.First, second signal processing circuit adopts light-coupled isolation, can realize the level conversion of 5v and 12v, can play not the effect of holding circuit altogether on the jamproof basis of raising.Serial communication modular adopts the R232 level shifting circuit can realize and the communicating by letter of host computer, and adopts the interface programming based on the VC++ development environment on host computer, can realize serial data directly is presented on the screen.
With reference to Fig. 2, Fig. 3.The emission sensor array adopts vertical installation with the receiving sensor array on mounting means.Aim in order to guarantee light path, the top of erecting frame with below the calibration that the two-way LASER Discharge Tube is finished light path is installed, in order to satisfy the requirement of precision, centre distance is 5cm between emission sensor and emission sensor, receiving sensor and the receiving sensor, can in the measurement range of 2m the precision of measuring height be reached ± 5cm like this.
With reference to Fig. 4, Fig. 5.Emission sensor array and receiving sensor array, signal processing circuit comprises first signal processing circuit and secondary signal treatment circuit, first signal processing circuit is handled (Fig. 4) for the signal that sends, and the secondary signal treatment circuit is handled (Fig. 5) for the signal that receives.
First signal processing circuit is selected the P181 module, and pin (k, 2) is by 470 Ω resistance eutral groundings, and pin (c, 3) connects the 12V power supply, and pin (E, 4) connects 4.7K resistance, and power valve is connected across 4.7K resistance two ends.
The secondary signal treatment circuit is also selected the P181 module, and pin (A, 1) is connected with a pin of receiving tube, and another pin of receiving tube connects the 12V power supply, and receiving tube has a pin ground connection; Pin
(k, 2) by the 1.5K resistance eutral grounding, pin (c, 3) connects the 5V power supply, and pin (E, 4) connects 4.7K resistance.
First signal processing circuit is in order to satisfy the transmission requirement of phase method signal, use single-chip microcomputer 1 is finished the control to the optoelectronic switch power supply, finish the level conversion of 5v so adopt optocoupler to 12v, when improving antijamming capability, can play the effect of electrical isolation, adopt p181 type optical coupled switch speed can reach the requirement that 4khz enough satisfies sweep velocity aspect the optocoupler use.The receiving tube of secondary signal treatment circuit optoelectronic switch adopts NPN type receiving tube, is output as the switching value of 12v, so single-chip microcomputer 2 adopts the 5v switching value still to adopt light to isolate the conversion of finishing level.
With reference to Fig. 6, Fig. 7.The shortcoming of Photoelectric infrared switch array is: light has diversity, though that scioptics can make the diversity of light obtain weakening dispersing of under the very big situation of transmitting range light is still very big.Thereby because can being subjected to the interference of adjacent sensors, this characteristics of optoelectronic switch cause the concrete interference effect of measuring error as shown in Figure 6 by the sensor array that Photoelectric infrared switch constituted, so propose the phenomenon that interferes with each other that the method for phase method solves optoelectronic switch here.So-called phase method, be to adopt the method for time-delay that the signal of power valve is produced successively, stack by signal can make the signal high level lasting time of receiving tube be in a constant length like this, when barrier blocks power valve, the duration of high level will shorten, can judge whether this position is blocked by the high level shortening degree of estimating this position, so just can under the situation that receives the signal interference, finish measurement height.
With reference to figure 8, Fig. 9.The program of single-chip microcomputer 1 and single-chip microcomputer 2 is described from sending and receive two parts.The single-chip microcomputer 1 of radiating portion adopts the method for circulation time-delay to produce the high-low level signal of inherent delay, and idiographic flow as shown in Figure 8.The principle of the employing data analysis of the single-chip microcomputer 2 of receiving unit judges on the basis of prevalue whether this sensor is blocked, and exports the pipe number and the height of this sensor, and concrete process flow diagram as shown in Figure 9.
With reference to Figure 10.The data communication of single-chip microcomputer 2 adopts the MAX232 serial port chip to finish the conversion of Transistor-Transistor Logic level to the serial ports level, can adopt visualization interface that data are shown in host computer.
Adopt vehicle superelevation detector of the present utility model, when the vehicle passing detection line, emission sensor array and receiving sensor collection vehicle altitude signal at measuring station detection line two ends, signal is through being sent to single-chip microcomputer separately behind the change-over circuit separately, single-chip microcomputer carries out data processing, at last output height result.
Claims (6)
1. vehicle superelevation detector, it is characterized in that, comprise the light curtain that the emission sensor array that is arranged on measuring station detection line two ends and receiving sensor array are formed, the emission sensor array is connected with first single-chip microcomputer by first signal processing circuit, provides power supply by first power module; The receiving sensor array is connected with second singlechip by the secondary signal treatment circuit, provides power supply by the second source module; Wherein, second singlechip is by serial communication modular and upper machine communication.
2. vehicle superelevation detector as claimed in claim 1 is characterized in that, described emission sensor array and receiving sensor array selective light electric switch.
3. vehicle superelevation detector as claimed in claim 1 is characterized in that described first single-chip microcomputer, second singlechip are all selected the freescale single-chip microcomputer.
4. vehicle superelevation detector as claimed in claim 2 is characterized in that described optoelectronic switch is the correlation optoelectronic switch.
5. vehicle superelevation detector as claimed in claim 2, it is characterized in that, described first power module, second source module are all selected the 70w Switching Power Supply, with provide not ground altogether+power supply of 12v and+5v, give first signal processing circuit, secondary signal treatment circuit and first single-chip microcomputer, second singlechip power supply.
6. vehicle superelevation detector as claimed in claim 2 is characterized in that, described serial communication modular adopts the R232 level shifting circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020019689XU CN201584060U (en) | 2010-01-13 | 2010-01-13 | Detection instrument for superelevation of vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020019689XU CN201584060U (en) | 2010-01-13 | 2010-01-13 | Detection instrument for superelevation of vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201584060U true CN201584060U (en) | 2010-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020019689XU Expired - Fee Related CN201584060U (en) | 2010-01-13 | 2010-01-13 | Detection instrument for superelevation of vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201584060U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012214A (en) * | 2010-12-01 | 2011-04-13 | 长沙开元机电设备有限公司 | Device for measuring height of platform floor |
| CN102141372A (en) * | 2010-11-09 | 2011-08-03 | 胡静锋 | Measuring grating-based device and method for detecting illegal loading of transport vehicles |
| CN109949531A (en) * | 2019-03-15 | 2019-06-28 | 南京工程学院 | A kind of wireless face isolating device based on deep learning and LF communication array |
| CN110510142A (en) * | 2019-09-11 | 2019-11-29 | 中船重工海为郑州高科技有限公司 | Fall apart vehicle remote positioning and monitoring method for a kind of airport |
-
2010
- 2010-01-13 CN CN201020019689XU patent/CN201584060U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141372A (en) * | 2010-11-09 | 2011-08-03 | 胡静锋 | Measuring grating-based device and method for detecting illegal loading of transport vehicles |
| CN102012214A (en) * | 2010-12-01 | 2011-04-13 | 长沙开元机电设备有限公司 | Device for measuring height of platform floor |
| CN109949531A (en) * | 2019-03-15 | 2019-06-28 | 南京工程学院 | A kind of wireless face isolating device based on deep learning and LF communication array |
| CN110510142A (en) * | 2019-09-11 | 2019-11-29 | 中船重工海为郑州高科技有限公司 | Fall apart vehicle remote positioning and monitoring method for a kind of airport |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100915 Termination date: 20120113 |