CN215643108U - Intersection speed of a motor vehicle early warning signal control system - Google Patents
Intersection speed of a motor vehicle early warning signal control system Download PDFInfo
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- CN215643108U CN215643108U CN202120800622.8U CN202120800622U CN215643108U CN 215643108 U CN215643108 U CN 215643108U CN 202120800622 U CN202120800622 U CN 202120800622U CN 215643108 U CN215643108 U CN 215643108U
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- laser sensor
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Abstract
The utility model discloses a crossroad vehicle speed early warning signal control system, which comprises a speed measuring module, a power supply module, a single chip microcomputer minimum system and an early warning module; the speed measuring module comprises a laser sensor and is used for monitoring the speed of vehicles coming and going and transmitting data to a single chip microcomputer in a minimum system of the single chip microcomputer, and the single chip microcomputer is used for comparing a speed measuring value with an early warning threshold value; the power supply module is used for supplying power to the whole control system; the laser sensor used at this time has the characteristics of small size, long measuring distance and high precision, is easy to install and is more convenient to use; folding bag of design below laser sensor to combine two sets of gasbags to use, can realize using the regulation of angle to whole laser sensor, two sets of gasbags then drive the side column upset respectively and extend, can make in the side column cartridge arrives the soil, thereby ensure the firm of whole laser sensor position, avoid taking place to rock the phenomenon.
Description
Technical Field
The utility model belongs to the field of intelligent traffic systems, and particularly relates to a crossroad vehicle speed early warning signal control system.
Background
The intelligent transportation system effectively and comprehensively applies advanced information technology, data communication technology, sensor technology, electronic control technology, computer technology and the like to the whole transportation management system, thereby establishing a comprehensive transportation and management system which can play a role in a large range and all directions, and is real-time, accurate and efficient.
With the development of national economy, the number of various motor vehicles is high, the number of traffic accidents is increased, and the number of living lives is continuously reduced. The types of accidents occurring at intersections are numerous, with traffic accidents between vehicles being more common, and such accidents are generally accompanied by traffic violations, mainly manifested as red light running and speeding. The braking distance is prolonged by overspeed driving, the operation stability of the vehicle is also influenced by the overspeed driving, the vehicle is easy to be out of control and rollover, the vision of a driver is influenced by the overspeed, the vision of the driver is narrowed, the reaction distance is prolonged, and the dangerous case suddenly appearing in the front is difficult to effectively deal with;
at present, the technology for measuring and controlling the vehicle speed mainly comprises four modes of measuring the speed by using a ground induction coil based on the electromagnetic induction principle, measuring the speed by using laser of laser ranging, measuring the speed by using a radar based on the Doppler effect and measuring the speed by using a video of a vehicle image; the radar speed measurement of the Doppler effect has high cost and poor electronic interference resistance. When the ground induction coil is used for measuring the speed of a vehicle, the coil laid underground is easily damaged by a heavy-duty truck coil, the construction quantity is large, and the maintenance is difficult. The video speed measurement has low precision, the parameters in the speed measurement system need to be measured before use, the anti-electronic interference performance is good, the precision is low, and the technology in the aspect of China is not mature.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides a crossroad vehicle speed early warning signal control system.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a crossroad vehicle speed early warning signal control system comprises a speed measuring module, a power supply module, a single chip microcomputer minimum system and an early warning module;
the speed measuring module comprises a laser sensor and is used for monitoring the speed of vehicles coming and going and transmitting data to a single chip microcomputer in a minimum system of the single chip microcomputer, and the single chip microcomputer is used for comparing a speed measuring value with an early warning threshold value;
the power supply module is used for supplying power to the whole control system;
the single chip microcomputer minimum system is a basic circuit driven by the single chip microcomputer, wherein the crystal oscillator circuit is a driver of the single chip microcomputer minimum system;
the early warning module warns when the value that tests the speed exceeds the early warning threshold promptly and points out, and the suggestion mode includes that the indicator is shown on liquid crystal display, the buzzer is opened and pilot lamp (4) flicker.
Preferably, the speed measuring module adopts laser sensor as speed of a motor vehicle measuring sensor, passes through UART interface connection with the singlechip, through serial port communication's mode communication, laser sensor's bottom is equipped with the A-frame, and is connected through the pivot between the footstock of A-frame and the laser sensor to set up folding bag between A-frame and laser sensor.
Preferably, an air pump is installed in the footstock of the triangular support, and pins are welded at the bottom ends of the support legs of the triangular support.
Preferably, participate in and contain inserted bar, at least two sets of side posts and the connection of being connected between inserted bar and side post of being connected with the inserted bar rotary type gasbag, and the folding bag of a gasbag all passes through the trachea with the air pump and is connected.
Preferably, the side pole contains the sleeve, inserts the interior pole body of sleeve one end inner chamber and is used for connecting interior pole body and telescopic No. two gasbags, and is connected through the trachea between No. two gasbags and the air pump.
Preferably, the singlechip is a singlechip with the model of STC89C52, and the smallest system of the singlechip selects a quartz crystal oscillator as a driver to be used as the most basic circuit driven by the singlechip.
Compared with the prior art, the utility model provides a crossroad vehicle speed early warning signal control system, which has the following beneficial effects:
the laser sensor used at this time has the characteristics of small size, long measuring distance and high precision, is easy to install and is convenient to use;
and meanwhile, the indicating lamp is used for prompting the driver to pay attention to the front early warning information, can attract the attention of the driver through flickering, is matched with the display content of the liquid crystal display screen, and has an excellent early warning effect.
Thirdly, the control principle of the selected single chip microcomputer is simple, and programming control is easy to perform;
fourthly at the folding bag of laser sensor below design to combine two sets of gasbags to use, can realize using the regulation of angle to whole laser sensor, two sets of gasbags then drive the side column upset respectively and extend, can make in the side column cartridge soil, thereby ensure the firm of whole laser sensor position, avoid taking place to rock the phenomenon.
Drawings
FIG. 1 is a schematic design diagram of the overall structure of the present invention;
FIG. 2 is a hardware circuit diagram of the overall architecture of the present invention;
FIG. 3 is a schematic control flow diagram of the main program of the system of the present invention;
FIG. 4 is a schematic diagram of the velocity measurement program control process of the present invention;
FIG. 5 is a schematic diagram of the program flow of the serial port reading and writing of the single chip microcomputer;
FIG. 6 is a flow chart of a liquid crystal display process according to the present invention;
FIG. 7 is a schematic view of the laser sensor of the present invention in an assembled state with a tripod;
FIG. 8 is a schematic view of a pin configuration of the present invention;
fig. 9 is a cross-sectional view of a jamb configuration of the present invention.
Reference numerals: 1. a buzzer; 2. a laser sensor; 3. a liquid crystal display screen; 4. an indicator light; 5. a single chip microcomputer minimum system; 6. a power supply module; 7. a triangular bracket; 8. folding the bladder; 9. an air pump; 10. a pin; 101. inserting a rod; 102. a side post; 1021. an inner rod body; 1022. a sleeve; 1023. a second airbag; 103. An air bag I.
Detailed Description
The following further describes a specific embodiment of the intersection vehicle speed early warning signal control system according to the present invention with reference to fig. 1. The intersection vehicle speed warning signal control system of the present invention is not limited to the description of the following embodiments.
The embodiment provides a specific structure of a crossroad vehicle speed early warning signal control system, and as shown in fig. 1-6, the crossroad vehicle speed early warning signal control system comprises a speed measurement module, a power module 6, a single-chip microcomputer minimum system 5 and an early warning module;
the speed measuring module comprises a laser sensor 2 and is used for monitoring the speed of vehicles coming and going and transmitting data to a single chip microcomputer in a single chip microcomputer minimum system 5, and the single chip microcomputer is used for comparing a speed measuring value with an early warning threshold value;
the power supply module 6 is used for supplying power to the whole control system;
the singlechip minimum system 5 is a basic circuit driven by the singlechip, wherein the crystal oscillator circuit is a driver of the singlechip minimum system 5;
the early warning module, carry out the warning suggestion when the value that tests the speed surpasss early warning threshold promptly, the suggestion mode includes that the suggestion language is shown on liquid crystal display 3 (can specifically adopt LCD1602 liquid crystal display), buzzer 1 opens and pilot lamp 4 twinkles.
Referring to fig. 3, the single chip receives data and makes a judgment. The singlechip compares the speed measurement value with an early warning threshold value of 60km/h, judges whether the speed measurement value is in a safety range or not, prompts the speed measurement value through an early warning module if the speed measurement value is too high,
the first method is as follows: the 1602 liquid crystal is also called 1602 character type liquid crystal, and is a dot matrix type liquid crystal module specially used for displaying letters, numbers, symbols and the like, as shown in fig. 6, initialization setting is firstly performed after a system is started, initialization setting of a display screen mainly includes screen clearing, setting of a cursor to be set and returned, and display permission. And then setting a first row of display content, wherein the first row of the system does not display the content when the system does not enter an alarm mode, and displaying the vehicle speed from the 3 rd bit of the first row. The second line initially displays "Traffi c control! ", when the speed measurement is performed, the result of the speed measurement is displayed, and when the safety is ensured, the security is displayed at the fifth position of the second line! ", the third position shows" wann i ng! | A | A ".
The second method comprises the following steps: the indicator light 4 is an LED, attracts the attention of the driver through flickering, and is used for prompting the driver to pay attention to the front early warning information.
The third method comprises the following steps: in another method for early warning the driver by the system, the active buzzer 1 circularly emits warning sound, and the system can be driven by connecting a 5V direct-current power supply, so that the driver is reminded of paying attention.
Referring to fig. 4, after the system is powered on, the system is initialized, and then the single chip microcomputer sends a character "O" to the laser sensor 22 to turn on the laser sensor 2; after the laser sensor 2 receives the instruction, if the system is normal, the system feeds back an 'OK' character string; after receiving the 'OK', the sensor is normally opened, and distance measurement can be carried out;
sending "D" to the laser sensor 2, starting the ranging instruction, the sensor starting the ranging, and returning the measured value after the ranging is completed, the measured value being a string, where the last end of the valid data is "m", thus when it is detected that the "m" character is received, the measurement is completed.
And after the first distance measurement is finished, starting a timer, timing for 0.5S, and after the point is reached, performing second distance measurement by the same method as the first distance measurement. And finishing the distance measurement twice, sending 'C' to the laser sensor 2 and turning off the sensor.
As shown in fig. 7, the speed measuring module adopts the laser sensor 2 as the vehicle speed measuring sensor, and the laser sensor 2 is connected with the single chip microcomputer through a UART interface, and communicates in a serial communication manner, the bottom end of the laser sensor 2 is equipped with a triangular bracket 7, and the footstock of the triangular bracket 7 is connected with the laser sensor 2 through a rotating shaft, and a folding bag 8 is arranged between the triangular bracket 7 and the laser sensor 2.
Specifically, the working voltage of the laser sensor module 2 is 5V, the laser sensor module is supplied with direct current, a serial communication interface is reserved, the laser sensor module is connected with the single chip microcomputer through a UART interface, the program flow completes the initialization setting of the serial communication according to the information (left one 'read', right one 'write'), and the serial communication can be performed after the serial setting is completed. The serial communication comprises data receiving and data sending, and the communication is carried out in a serial communication mode.
As shown in FIG. 7, an air pump 9 is installed in the top seat of the tripod 7, and pins 10 are welded to the bottom ends of the legs of the tripod 7.
As shown in fig. 7 and 8, the plug 10 includes a plunger 101, at least two sets of side posts 102 rotatably connected to the plunger 101, and a first airbag 103 connected between the plunger 101 and the side posts 102, and the folded airbag 8 of the first airbag 103 is connected to the air pump 9 through an air tube.
As shown in fig. 9, the side pillar 102 includes a sleeve 1022, an inner rod 1021 inserted into an inner cavity of one end of the sleeve 1022, and a second air bag 1023 for connecting the inner rod 1021 and the sleeve 1022, and the second air bag 1023 is connected with the air pump 9 through an air tube;
specifically, the electric control valves can be assembled on the air pipes, and the electric control valves are controlled through the single chip microcomputer.
By adopting the technical scheme:
folding bag of design below laser sensor to combine two sets of gasbags to use, can realize using the regulation of angle to whole laser sensor, two sets of gasbags then drive the side column upset respectively and extend, can make in the side column cartridge arrives the soil, thereby ensure the firm of whole laser sensor position, avoid taking place to rock the phenomenon.
As shown in fig. 2, the single chip microcomputer is a single chip microcomputer with model number STC89C52, and the minimum system 5 of the single chip microcomputer selects a quartz crystal oscillator as a driver and is used as a most basic circuit driven by the single chip microcomputer.
The foregoing is a more detailed description of the utility model in connection with specific preferred embodiments and it is not intended that the utility model be limited to these specific details. For those skilled in the art to which the utility model pertains, several simple deductions or substitutions can be made without departing from the spirit of the utility model, and all shall be considered as belonging to the protection scope of the utility model.
Claims (6)
1. The utility model provides a crossroad speed of a motor vehicle early warning signal control system which characterized in that: the system comprises a speed measuring module, a power supply module (6), a singlechip minimum system (5) and an early warning module;
the speed measuring module comprises a laser sensor (2) for monitoring the speed of vehicles coming and going and transmitting data to a singlechip in a singlechip minimum system (5), and the singlechip is used for comparing a speed measuring value with an early warning threshold value;
the power supply module (6) is used for supplying power to the whole control system;
the single chip microcomputer minimum system (5) is a basic circuit driven by the single chip microcomputer, wherein the crystal oscillator circuit is a driver of the single chip microcomputer minimum system (5);
the early warning module warns when the value that tests the speed exceeds the early warning threshold promptly and points out, and the suggestion mode includes that display prompt message, buzzer (1) open and pilot lamp (4) flicker on liquid crystal display (3).
2. The intersection vehicle speed warning signal control system of claim 1, characterized in that: the speed measuring module adopts laser sensor (2) as the speed of a motor vehicle and measures the sensor, passes through UART interface connection with the singlechip, through serial port communication's mode communication, the bottom of laser sensor (2) is equipped with A-frame (7), and is connected through the pivot between footstock of A-frame (7) and laser sensor (2) to set up folding bag (8) between A-frame (7) and laser sensor (2).
3. The intersection vehicle speed warning signal control system of claim 2, characterized in that: an air pump (9) is installed in the footstock of the triangular support (7), and pins (10) are welded at the bottom ends of the support legs of the triangular support (7).
4. The intersection vehicle speed warning signal control system of claim 3, characterized in that: the plug pins (10) comprise insertion rods (101), at least two groups of side columns (102) rotatably connected with the insertion rods (101) and air bags (103) connected between the insertion rods (101) and the side columns (102), and the folding bags (8) of the air bags (103) are connected with the air pump (9) through air pipes.
5. The intersection vehicle speed warning signal control system of claim 4, characterized in that: the side post (102) contains sleeve (1022), the interior pole body (1021) of cartridge to sleeve (1022) one end inner chamber and is used for connecting interior pole body (1021) and No. two gasbag (1023) of sleeve (1022), and passes through the trachea between No. two gasbag (1023) and air pump (9) and be connected.
6. The intersection vehicle speed warning signal control system of claim 1, characterized in that: the single chip microcomputer is of a model STC89C52, and the minimum system (5) of the single chip microcomputer selects a quartz crystal oscillator as a driver and is used as a most basic circuit driven by the single chip microcomputer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120800622.8U CN215643108U (en) | 2021-04-19 | 2021-04-19 | Intersection speed of a motor vehicle early warning signal control system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120800622.8U CN215643108U (en) | 2021-04-19 | 2021-04-19 | Intersection speed of a motor vehicle early warning signal control system |
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| CN215643108U true CN215643108U (en) | 2022-01-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118053300A (en) * | 2024-01-26 | 2024-05-17 | 安徽工业大学 | Intelligent road early warning system and early warning method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118053300A (en) * | 2024-01-26 | 2024-05-17 | 安徽工业大学 | Intelligent road early warning system and early warning method |
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Granted publication date: 20220125 |