CN216083935U

CN216083935U - Intersection traffic safety auxiliary system

Info

Publication number: CN216083935U
Application number: CN202122765966.2U
Authority: CN
Inventors: 吴斌
Original assignee: Zhaotong Liangfengtai Information Technology Co ltd
Current assignee: Zhaotong Liangfengtai Information Technology Co ltd
Priority date: 2021-11-03
Filing date: 2021-11-03
Publication date: 2022-03-18
Anticipated expiration: 2031-11-03

Abstract

The utility model provides a crossing traffic safety auxiliary system, which relates to the technical field of intelligent traffic and comprises the following components: the LED lamps and the light-gathering shell are respectively arranged on two sides of the pedestrian crossing and are controlled by the light wall display module to form a light wall; the voice equipment is arranged on the side edge of the pedestrian crossing and is controlled by the voice module; the first sensor is arranged at the bottom of the LED lamp and used for monitoring whether pedestrians exist or not; the second sensor is arranged on the ground where the light wall is located and used for monitoring whether a pedestrian passes through the light wall; the working states of the first sensor and the second sensor are controlled by an infrared photoelectric switch module; the warning lamps are arranged on two sides of the pedestrian crossing or two sides of the lane and are controlled by the warning lamp modules; the light wall display module, the voice module, the infrared photoelectric switch module and the warning lamp module are all controlled by a single chip; the method is used for solving the problem that the existing part of pedestrians do not obey the signal lamp indication through the traffic intersection and have great potential safety hazards.

Description

Intersection traffic safety auxiliary system

Technical Field

The utility model relates to the technical field of intelligent traffic, in particular to an intersection traffic safety auxiliary system.

Background

At present, pedestrians pass through a traffic intersection and are provided with traffic lights, but many pedestrians forcibly pass through illegal behaviors of pedestrian crossings regardless of signal light indication, or cross the pedestrian crossings under the condition of incorrect traffic guidance. Meanwhile, due to the popularization of smart phones in recent years, even more, people can also turn down the head on pedestrian crossings, and great potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

In order to overcome the technical defects, the utility model aims to provide an intersection traffic safety auxiliary system which is used for solving the problem that a large potential safety hazard exists because part of pedestrians pass through a traffic intersection and do not obey signal lamp indication.

The utility model discloses a crossing traffic safety auxiliary system, comprising:

the LED lamps and the light-gathering shell are respectively arranged on two sides of the pedestrian crossing and are controlled by the light wall display module to form a light wall;

the voice equipment is arranged on the side edge of the pedestrian crossing and is controlled by the voice module;

the first sensor is arranged at the bottom of the LED lamp and used for monitoring whether pedestrians exist or not;

the second sensor is arranged on the ground where the light wall is located and used for monitoring whether a pedestrian passes through the light wall;

the working states of the first sensor and the second sensor are controlled by an infrared photoelectric switch module, and the infrared photoelectric switch module acquires monitoring data of the first sensor and the second sensor;

the warning lamps are arranged on two sides of the pedestrian crossing or two sides of the lane and are controlled by the warning lamp modules;

the light wall display module, the voice module, the infrared photoelectric switch module and the warning lamp module are all controlled by a single chip;

when the single chip microcomputer controls the light wall display module to form a red light wall, the first sensor monitors pedestrians, the voice module is controlled to play first voice information, the warning lamp module controls and controls the warning lamp to flicker at a first frequency, the second sensor monitors pedestrians, the voice module is controlled to play third voice information, and the warning lamp module controls and controls the warning lamp to flicker at a second frequency.

Preferably, the two groups of LED lamps are respectively arranged at the initial position of the crosswalk and at two sides of a lane stop line positioned at the side edge of the crosswalk so as to form a red or green light wall covering the crosswalk and a red light wall covering the lane stop line.

Preferably, the single chip microcomputer is set to be a CMOS 8-bit single chip microcomputer.

Preferably, the single chip microcomputer controls the light wall display module, the voice module, the infrared photoelectric switch module and the warning lamp module through a driving chip.

Preferably, the single chip microcomputer simulates the display of a traffic signal lamp by using an LED dot matrix.

Preferably, the infrared photoelectric switch module adopts a correlation photoelectric switch NPN three-wire normally-open type photoelectric module.

Preferably, the voice module comprises a voice control chip;

wherein, the voice control chip integrates a microcontroller and an audio decoding element.

Preferably, the single chip microcomputer is provided with a plurality of time periods, and the light wall display module, the voice module, the infrared photoelectric switch module and the warning lamp module are controlled in each time period.

Preferably, the warning light is controlled by the warning light module to be displayed in a mode of flickering at a preset frequency.

After the technical scheme is adopted, compared with the prior art, the method has the following beneficial effects:

the utility model provides an intersection traffic safety auxiliary system which takes a single chip microcomputer as a main control chip and is formed by combining an infrared photoelectric switch module, a voice module, a light wall display module and a warning light module.

Drawings

FIG. 1 is a schematic block diagram of an embodiment of an intersection traffic safety assistance system according to the present invention;

FIG. 2 is a schematic circuit diagram of an embodiment of the intersection traffic safety assistance system according to the present invention;

fig. 3 is a schematic view illustrating the formation of a light wall in an embodiment of the intersection traffic safety assistance system according to the present invention.

Reference numerals: 1-a light wall display module; 11-LED lamps; 12-a light-gathering housing; 2-a voice module; 21-a voice device; 3-infrared photoelectric switch module; 4-warning light module; 5, a singlechip; 51-a driving chip; a-a first sensor; b-a second sensor; .

Detailed Description

The advantages of the utility model are further illustrated in the following description of specific embodiments in conjunction with the accompanying drawings.

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.

In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in themselves. Thus, "module" and "component" may be used in a mixture.

Example (b): the present embodiment provides an intersection traffic safety assistance system, referring to fig. 1 to 3, including:

the voice equipment is arranged on the side edge of the pedestrian crossing and is controlled by the voice module, and the voice equipment comprises but is not limited to a loudspeaker;

the light wall display module, the voice module, the infrared photoelectric switch module and the warning light module are all controlled by a single chip.

Specifically, the LED lamps may be provided in multiple groups, and in this embodiment, preferably, the LED lamps are provided in two groups, which are respectively provided at the start position of the crosswalk and at two sides of the lane stop line at the side of the crosswalk, so as to form a red or green light wall covering the crosswalk and a red light wall covering the lane stop line, that is, at the start position of the crosswalk and at two sides of the lane stop line at the front end of the crosswalk, "light walls" of different colors (such as red light wall and green light wall, which respectively correspond to the red light and the green light of the traffic signal lamp) can be formed by changing different colors of the LED lamps. In the circuit design, a pedestrian crosswalk red light wall and a green light wall are respectively composed of D3/D4, D7/D8, D1/D2 and D5/D6; the red 'light wall' of the lane crossing is composed of D13/D14 and D17/D18.

In this embodiment, preferably, the voice module includes a voice control chip; wherein, the voice control chip integrates a microcontroller and an audio decoding element. More specifically, a JQ8900-16P8400MP3 voice module chip is adopted. This speech control chip chooses the SOC scheme for use, has integrateed 16 MCU (microcontroller) of bit to and a special ADSP to audio decoding, adopts the mode of hard decoding, has guaranteed the stability and the tone quality of system more, can directly copy the audio frequency and change the pronunciation content in the SPI-flash, combines voicereader (speech synthesis software) can generate the audio file that needs, can make the suggestion pronunciation more humanized, makes the pedestrian accept more easily. When in control, only the singlechip is needed to control the low level of the chip to trigger the audio IO port, and once the low level of the chip is triggered, the audio file can be played in a timed and circulating mode.

In this embodiment, it is further preferable that the infrared photoelectric switch module is a bijection photoelectric switch NPN three-wire normally-open type photoelectric module, the module is a bijection photoelectric switch, the first sensor and the second sensor are both infrared photoelectric sensors, the advantage of long detection distance is provided, the measurement range controlled by the infrared photoelectric switch module is 10-200cm, no shielding is provided during operation, high level is output, and shielding is provided, and low level is output, in the device, the first sensor a is embedded at the bottom end of the LED light wall, so as to more conveniently detect whether a pedestrian passes through, the second sensor b is located at the front end of the light wall, so as to detect whether the pedestrian passes through the light wall, and the specific positions of the first sensor and the second sensor are shown in fig. 3.

In the above embodiment, it is also preferable that the warning light is controlled by the warning light module to be displayed in a manner of flashing at a preset frequency. Concretely, it uses red and yellow LED lamp to constitute to set up the LED warning light, red yellow light wavelength is longer and have strong penetration ability, consequently, the warning effect that has the preferred, the LED warning light can be laid and reach the effect of suggestion driver on both sides of lane, also can lay in pedestrian's crosswalk initial position in order to indicate the pedestrian, through singlechip and 74H245 drive chip control, because the colour is high at people eyeball central vision recognition rate, marginal vision recognition rate is low, and the motion information that twinkles is fast at the high recognition rate in marginal vision recognition rate more can arouse people to pay attention to, in order to remedy the drawback that marginal vision recognition rate is low, the LED warning light all uses the scintillation state during operation.

In a preferred embodiment, the single chip microcomputer is set to be a CMOS8 bit single chip microcomputer. Specifically, in the present embodiment, an STC89C51 single chip microcomputer is used as a core control device, and the model has a CMOS 8-bit single chip microcomputer with low power consumption and high performance, a 4K memory, and a FLASH program storage device which can be repeatedly erased and written thousands of times. Meanwhile, the capacity of a random access data storage of the single chip microcomputer reaches 128bytes, and the single chip microcomputer is provided with 32 bidirectional output/input I/O interfaces. Interrupt priority of up to 5 and interrupt nesting interrupt of 2 layers at the same time, 2 16-bit timing counters.

In this embodiment, preferably, the single chip microcomputer controls the light wall display module, the voice module, the infrared photoelectric switch module and the warning light module through a driving chip. More specifically, the system circuit is shown in fig. 2. The high 4 positions of the P1 port of the singlechip drive a chip through 74HC245 to control a light wall display module so as to display an LED 'light wall', and P1.4 and P1.5 drive the chip through 74HC245 to control a warning lamp module so as to lead a warning lamp to flash; preferably, the single chip microcomputer simulates the display of a traffic signal lamp by using an LED dot matrix, specifically, a P2.1 and a P2.2 drive a chip to control the display effect of a 100-type traffic signal lamp through 74HC245, a pedestrian crossing traffic lamp is replaced by a simulated LED8X8 dot matrix, an infrared photoelectric switch module (two groups of infrared photoelectric sensors (namely a first sensor and a second sensor)) is connected to the lower 4 bits of a P2 port, and 4 BUTTON BUTTONs are used for replacing the simulation process; the lower 4 bits of the port P3 are connected with the low level trigger output/input end of the JQ8900-16P voice chip to indirectly control the voice played by the loudspeaker (voice equipment).

In a preferred embodiment, the single chip microcomputer sets a plurality of time periods, and controls the light wall display module, the voice module, the infrared photoelectric switch module and the warning light module in each time period. Specifically, the time period may be set to 12 hours to achieve day/night switching control, and a preset time period may also be set, such as a morning and evening peak time period, so that the intersection traffic safety assistance system is consistent with the traffic signal display, and is matched with the traffic flow in an actual scene.

It should be noted that, in order to further improve the warning effect of the behavior of running a red light or having the intention of running a red light, or remind some pedestrians to wait for a red light in the side line of the pedestrian crossing, spraying devices may be installed on both sides of the pedestrian crossing, and may be disposed near the first sensor, and when the first sensor detects a pedestrian, the spraying devices are triggered to spray air or colored liquid to achieve the warning effect, thereby further reducing the potential safety hazard.

Specifically, as described in further detail, the intersection traffic safety assistance system in the present embodiment must be equipped with traffic facilities to work simultaneously, and the system work flow is mainly divided into three parts, namely, a pedestrian crossing controlled by a traffic signal lamp, a pedestrian crossing controlled by no traffic signal lamp, and a pedestrian crossing at night. The system is switched day/night by timing control. The following describes each part using a control flow in detail, but it should be particularly emphasized that the intersection traffic safety auxiliary system is used for providing connection and signal control of each single chip microcomputer, the light wall display module, the voice module, the infrared photoelectric switch module and the warning light module, wherein the execution mode of each module is the existing control logic of each module.

The pedestrian crossing is controlled by a traffic signal lamp: when the traffic light is red, the light wall at the initial position of the crosswalk is displayed red, whether the first sensor has a signal or not needs to be judged at the moment, if the signal of the first sensor a is triggered, the crosswalk warning light indicates that a pedestrian wants to run the red light, the crosswalk warning light flashes for 1 time/s at the moment, the lane warning light keeps flashing by yellow light, the first voice information is 'the red light is present, the pedestrian is prohibited to run', and the effect of prompting the pedestrian not to run the red light is achieved. If the pedestrian puts the intention to pass through the crosswalk forcibly, the second sensor b is triggered, once the second sensor b is triggered by a signal, the pedestrian indicates that the pedestrian has determined to run the red light, the crosswalk warning light flickers for 2 times/s, the lane warning light keeps red and normally on, the red light wall of the lane is started, and the second voice information is 'red light danger, red light danger and red light danger'.

When the traffic light is green, the light wall at the initial position of the pedestrian crossing is displayed green, whether a sensor has a signal or not is not considered at the moment, and third voice information is broadcasted in a voice circulation mode, for example, the situation that the pedestrian passes through the green light at present and the person is congratulated at one road is solved.

Pedestrian crossing at night: the time for automatically switching from day to night can be changed according to the local actual scene situation. Because the light is not good at night and a plurality of traffic lights keep the yellow light to flicker, the danger coefficient of the pedestrian passing through the pedestrian crossing is increased at the moment. Can set up the pedestrian at night and trigger first sensor or second sensor, pedestrian's crosswalk warning light and lane warning light all last the scintillation, and the light wall on pedestrian's crosswalk and the lane also starts thereupon, sets up first speech information, second speech information and aforementioned third speech information and is "the night is current, notices the incoming and outgoing vehicle".

The pedestrian crossing without signal lamp control: the pedestrian crossing without signal lamp control only comprises voice equipment, a warning lamp and a first sensor, when the first sensor is triggered, the lane warning lamp keeps flashing yellow to indicate that pedestrians pass through the pedestrian crossing in front, so that a driver is reminded of paying attention to the pedestrians in front, and meanwhile, a first voice text on the pedestrian crossing side is accompanied to pay attention to vehicles coming and going, and the vehicles are guaranteed to pass through quickly after safety.

In summary, the intersection traffic safety auxiliary system provided by the utility model can utilize whether a pedestrian runs the red light when the infrared photoelectric switch module is in the red light, and the single chip microcomputer is used as a main control chip, and meanwhile, the voice module, the warning light module and the light wall display module are arranged to carry out voice prompt on the pedestrian, flash of the warning light and red light wall display module so as to ensure the safety of the pedestrian crossing the street, so that the motor vehicle can pass through the street more efficiently. Whether detecting the pedestrian when passing through, adopt first sensor and second sensor to monitor pedestrian's crosswalk anterior segment and middle section respectively, carry out voice prompt to the action of running the red light or having the intention of running the red light, with the rate of accuracy that improves pedestrian's detection, voice prompt's variety and hommization, the cooperation of multiple suggestion is used more efficient suggestion pedestrian and is passed through the crosswalk safely, effectively overcome current part pedestrian and do not obey the signal lamp through the traffic crossing and instruct, there is the problem of great potential safety hazard, with improvement pedestrian's trip efficiency and security.

It should be noted that the embodiments of the present invention have been described in terms of preferred embodiments, and not by way of limitation, and that those skilled in the art can make modifications and variations of the embodiments described above without departing from the spirit of the utility model.

Claims

1. An intersection traffic safety assistance system, comprising:

the light wall display module, the voice module, the infrared photoelectric switch module and the warning light module are controlled by a single chip microcomputer; when the single chip microcomputer controls the light wall display module to form a red light wall covering a pedestrian crossing, the first sensor monitors pedestrians, the voice module is controlled to play first voice information, the warning lamp module controls the warning lamp to flicker at a first frequency, the second sensor monitors pedestrians, the voice module is controlled to play third voice information, and the warning lamp module controls the warning lamp to flicker at a second frequency.

2. The security assistance system of claim 1, wherein:

the LED lamps are arranged in two groups and are respectively arranged at the initial position of the pedestrian crossing and at two sides of a lane stop line positioned at the side edge of the pedestrian crossing so as to form a red or green light wall covering the pedestrian crossing and a red light wall covering the lane stop line.

3. The security assistance system of claim 1, wherein:

the single chip microcomputer is set to be a CMOS 8-bit single chip microcomputer.

4. The security assistance system of claim 1, wherein:

the single chip microcomputer controls the light wall display module, the voice module, the infrared photoelectric switch module and the warning lamp module through the driving chip.

5. The security assistance system of claim 1, wherein:

the single chip microcomputer simulates the display of a traffic signal lamp by using an LED dot matrix.

6. The security assistance system of claim 1, wherein:

the infrared photoelectric switch module adopts a correlation type photoelectric switch NPN three-wire normally-open type photoelectric module.

7. The security assistance system of claim 1, wherein:

the voice module comprises a voice control chip;

the voice control chip integrates a microcontroller and an audio decoding element;

and the singlechip controls the low level of the voice control chip to trigger an audio IO port.

8. The security assistance system of claim 1, wherein:

the single chip microcomputer is provided with a plurality of time periods, and the light wall display module, the voice module, the infrared photoelectric switch module and the warning lamp module are controlled under each time period.

9. The security assistance system of claim 1, comprising:

the warning light is controlled by the warning light module to display in a mode of flickering at preset frequency.