KR101089695B1 - detecting apparatus in road and bicycle detecting system - Google Patents

Abstract

The present invention discloses an apparatus for detecting a vehicle by a flight time of an optical sensor module and an optical sensor module for emitting and receiving light on a pressing plate and a pressing plate on which a plurality of pressing pieces are installed in parallel.

Description

Passing object detecting device and bicycle detecting system using same

The present invention is installed on the bicycle road to identify the bicycle, inline skates, motorcycle vehicles, detect the traffic volume, speed of the bicycle and display it on the indicator, and the transmission object detection device, including the bicycle to be transmitted to the central server and this It relates to a bicycle detection system used.

The use of bicycles instead of vehicles is a very useful way to improve the health of individuals as well as reduce traffic jams, so local governments are encouraged to ride bicycles. In addition, it is trying to establish the expansion and change plan by measuring the traffic volume of bicycles on the bicycle lane, and provides various safety devices for the driver's safety.

In addition, Korean Patent Publication No. 10-2008-0050646 (name of the invention: a digital portable portable terminal for bicycle) installs a GPS receiver on a bicycle and calculates the movement speed of the bicycle based on time information and location information received by the GPS receiver. In addition, it suggests a way to calculate the traffic volume of bicycles on bicycle lanes.

However, in the case of installing the GPS receiver on the bicycle, in order to measure the traffic volume, the bicycle traffic can be counted by transmitting its location to the central server from each bicycle in operation, and thus periodically transmitting its location. In this case, unnecessary communication load is generated.

In addition, even when the GPS receiver is installed on the bicycle, the safety of the bicycle driver is threatened when the motorcycle or the vehicle runs on the bicycle-only road.

In addition, the traffic volume of the bicycle should be detected first for the planning of the bicycle road, but when the existing vehicle detection device is installed on the bicycle road, in-line skates, motorcycles, and bicycles can be correctly detected among the bicycles. It may be difficult to accurately detect the traffic volume of the bicycle because it is difficult.

In addition, when detecting the speed of the bicycle by the existing speed detecting device, accurate speed detection is difficult when obliquely passing through the vehicle detecting device due to the characteristics of the bicycle.

The present invention is to provide a system for accurately detecting the speed and the detection of objects, including bicycles that pass on the road.

Solving means for solving the above problem is a pressing plate which is connected to both ends having a predetermined width and both ends are connected to the plurality of pressing pieces separated in parallel; An optical sensor module emitting light to the pressing plate and receiving light reflected from the pressing plate; A housing configured to receive the pressing plate and the optical sensor module and to transfer external pressure to the pressing pieces of the pressing plate to press and deform the housing; And a controller for detecting whether the pressing plate is deformed by the light divergence time and the light reception time of the optical sensor module to detect a passing object passing through the housing.

According to the present invention having the above-mentioned problems and solving means, the configuration of the object detecting device is simple, can be manufactured in a mobile and fixed type, the price is low, and the installation is simple.

1 is an overall block diagram illustrating an embodiment of the present invention.
Figure 2 is an exploded perspective view of one embodiment of a bicycle detection device of the present invention.
3 is a cross-sectional view taken along line AA ′ of FIG. 2.
4 is a cross-sectional view taken along line BB ′ of FIG. 2.
Figure 5 is a configuration diagram showing a shape in which the pressing piece is deformed by the in-line skate, motorcycle, bicycle wheel in the present invention.
6 is a block diagram illustrating a speed measuring method for measuring the speed of the bicycle in the embodiment of the present invention.
7 is a circuit block diagram of the controller of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The accompanying drawings illustrate a configuration that detects a bicycle by installing on a bicycle-only road, but this is an example and may be applied to a road that detects a vehicle by being installed on a vehicle passing road.

The bicycle traffic system shown in FIG. 1 displays the speed of the bicycle detected by the bicycle detecting device 1 and the bicycle detecting device 1 which detects the bicycle 201 passing through the bicycle-only road, and integrated control. The control unit 200 transmits traffic information of the bicycle to the center 100 and drives the photographing camera 201 to photograph the motorcycle when the motorcycle is detected by the bicycle detecting apparatus 1.

The bicycle detection apparatus 1 can be laminated on the surface of the road in a mobile manner, or can be fixedly embedded in the road.

The bicycle detecting device 1 shown in FIGS. 2 to 4 includes a housing 2 composed of an upper plate 3 and a lower plate 5, a pressing plate 7 inside the lower plate 5, and a pressing plate 7. It consists of a plurality of optical sensor module 11 installed in the lower portion.

The pressing plate 7 provided inside the lower plate 5 is made of a metal plate having high reflectivity and elasticity. In addition, the upper plate (3) installed on the upper portion of the lower plate (5) is bent downward when in contact with the wheels of vehicles, motorcycles, inline skates, bicycles, people, etc. passing through the upper surface of the upper plate (3) It is made of a material having a high elastic force to be restored.

The lower plate 5 has a predetermined width and thickness, the length is formed larger than the width in the transverse direction of the road, the upper plate (3) by chamfering at the corner portion where the upper and upper surface 17 of the outer surface of the lower plate 5 meets The side inner bottom of the is inserted and supported.

In addition, the upper surface 17 of the lower plate 5 is provided with grooves in which the jaws 15 and 15 'are formed in a predetermined distance from the outer circumferential surface in the longitudinal direction. In addition, a plurality of optical sensor modules 11 are installed in the longitudinal direction of the bottom surface 19 on the bottom surface 19 of the groove.

The pressing plate 7 has a predetermined width so as to be installed on the tops of the optical sensor modules 11, and the bottom surface is placed on the surfaces of the jaws 15 and 15 '. In addition, the pressing plate 7 is composed of the pressing pieces 21, both ends of which are connected to each other and the side portions are separated from each other and installed in parallel, the pressing piece 21 is pressed when a specific portion of the upper plate is pressed by a passing object. Pressed together to deform the curvature.

The upper plate 3 has a space formed on the inner side surface and the upper bottom surface 25 of the side wall 23, and protrudes to the upper bottom surface 25 in the longitudinal direction at the center of the width to press and depress the pressing piece 21. The pressing part 27 is formed.

The optical sensor module 11 includes a light emitter 29 that emits light and a light receiver 31 that receives reflected light when the light emitted from the light emitter 29 is reflected from the pressing plate 11. Equipped.

In addition, the groove bottom surface 19 of the lower plate 5 is connected to an electric substrate or a wire (not shown) connected to a controller to be described later to drive the optical sensor module 11.

The light emitted from the optical sensor module 11 is a general term for electromagnetic waves such as laser, ultrasonic waves, etc. It is well known to those skilled in the art that light of various wavelengths may be used appropriately for the field.

When a specific part of the upper plate 3 is pressed by the bicycle wheel when the bicycle 201 passes, the pressing unit 27 presses the pressing pieces 21 of the pressing plate 7, and the pressing pieces 21 are pressed. As shown in the dotted line in FIG. 3, the central portion is bent to bend downward.

At this time, the pressing plate 7 is provided with a plurality of pressing pieces 21, because the pressing pieces 21 are bent to bend downward independently, so that only the pressing pieces 21 placed directly below the width of the bicycle wheel are bent. do.

When the pressing piece 21 is bent downwardly deformed, the time when the light emitted from the light emitting part 29 of the optical sensor is reflected by the pressing piece 21 and received by the light receiving part 31 (hereinafter referred to as time fly) It becomes shorter than before it is curved.

Therefore, it is detected whether the specific pressing piece 21 is pressed by the change of the time flight.

In FIG. 5, (a) shows the shape in which the wheel of the inline skate presses the pressing piece 21, (b) shows the shape in which the bicycle wheel presses the pressing piece 21, and (c ) Shows a shape in which the motorcycle presses the pressing piece 21. In this way, the number of pressing pieces pressed by the passing object passing through the bicycle detecting device 1 is different.

If the maximum number pressed by the bicycle wheel is set to N1, it can be seen that the pressing piece 21 is pressed by a motorcycle or a person when the pressing piece 21 is pressed over N1.

In addition, when the pressing piece 21 is pressed within the number of N1, it turns out that it was pressed by inline skating or a bicycle.

The distinction between a motorcycle and a person, and the distinction between a bicycle and an inline skate are determined by the passing object determination module described later.

6 is a block diagram illustrating a speed measuring method for measuring the speed of the bicycle in the embodiment of the present invention.

As shown in Figure 6 in order to measure the speed of the bicycle must pass through the two bicycle detection devices (A), (B), it must measure the passing time to pass through them. In addition, since the bicycle is slower than a motorcycle or the like and often passes between two bicycle detectors A and B in an oblique line as shown in the drawing, two bicycle detectors A and B are simply used. Since speed cannot be detected with only the separation distance of, the speed must be compensated for the bicycle passing through the diagonal line.

If two bicycle detectors (A) and (B) having the same structure are installed on the bicycle road at a distance L, and the bicycle passes through the bicycle detectors (A) and (B) at an angle θ for Δt time, Actual travel distance l is

l = L / sinθ

to be. The speed is calculated by the following equation 1 by the corrected actual distance.

(Equation 1)

v = l / Δt = L / (sinθΔt)

7 is a circuit block diagram of the controller of the present invention.

As shown in FIG. 7, when a passing object such as a bicycle, an in-line skate, a motorcycle, or a person passes through the bicycle detecting devices A and B, the pressing pieces 21 are moved by the passing object. Passing object determination module 53 for receiving a signal from the optical sensor module 11 for detecting this when it is pressed to determine the type of the passing object is connected.

The passing object determination module 53 determines that the number of the pressing pieces 21 pressed by the first wheel and the second wheel of the passing object entering through the bicycle detecting device A is less than or equal to N1, and determines the bicycle and inline skating. Detects the time elapsed time t1 at which the pressed pieces are pressed by the first wheel and the second wheel, and when the time elapses to t1 or less, it is determined as inline skating, and when it exceeds t1, it is determined as a bicycle. Inline skates have a very short elapsed time with several wheels, but bicycles have a much longer elapsed time than elapsed time of the wheels of inline skates.

In addition, when the pressed pieces of the bicycle detecting device A are pressed by the second wheel after being pressed by the first wheel, it is determined that the pressed pieces are pressed by the same passing object when they are within the range X, and exceed the range of X. When it is determined, it is determined that it is pressed by another passing object entering from the opposite direction, that is, a passing object exiting from the bicycle detecting device A. At this time, the range X is determined experimentally by the structure of the bicycle and the structure of the inline skates.

Further, the passing object determination module 53 is pressed by a person or a motorcycle when the number of the pressing pieces 21 pressed by the first wheel and the second wheel of the passing object entering through the bicycle detecting device A is greater than or equal to N1. When the elapsed time, which is the time until the next pressing piece 21 is pressed by the same passing object, exceeds t2, it is determined as a person, and when it is less than t2, it is determined as a motorcycle. Also in this case, when the next pressing piece 21 is pressed out of the range X, it is determined as a passing object entering in the opposite direction.

In addition, the passing object determination module 53 performs the same method to the bicycle detection device (B) to perform the method performed on the bicycle detection device (A) to enter or exit from the bicycle detection devices (A), (B). The type of the passing object, such as a bicycle, inline skates, a motorcycle, or a person, is determined.

In addition, when the type of the passing object is determined in the passing object determination module 53, the count module 51 counts the total number of passing objects for each type of the passing object and transmits the counted amount to the control module 59.

In addition, when the passing object is determined to be a bicycle in the passing object determination module 53, the inclination angle θ and the passing time Δt are detected from the positions of the pressed pieces 21 of the bicycle detection devices A and B by the same bicycle. To the speed calculating module 57, and the speed calculating module 57 calculates the speed according to Equation (1).

The control module 59 receives the cumulative total of the passing objects by the passing time zone for each kind of passing objects transmitted from the count module 51 and the bicycle passing speed from the speed calculating module 57, and when the motorcycle passes, The camera 63 is driven to photograph the motorcycle.

In addition, the control module 59 displays the passage speed of the bicycle on the display unit 65 when the passage speed of the bicycle is input.

In addition, the control module 59 is configured to transmit and receive data to and from the integrated control center through the interface module 61 has a built-in program for processing data input from the peripheral device, bicycle, motorcycle, inline skates, Transmitted processed data such as the number of times passing by people, images of motorcycles, etc. are transmitted to the integrated control center.

Although the above embodiment has been described with reference to a bicycle, it is obvious that the bicycle detection apparatus and the system in which the bicycle is installed are deformable to the vehicle detection apparatus and the system for the vehicle, and various modifications may be installed. Therefore, the protection scope of the present invention will be defined by the claims.

Claims (4)

A pressing plate connected to both ends of the side portions having a predetermined width and both sides thereof, and having a plurality of pressing pieces separated from each other;
Optical sensor modules that emit light to the pressed pieces and receive light reflected from the pressed pieces;
A housing configured to receive the pressing plate and the optical sensor module and to transfer external pressure to the pressing pieces of the pressing plate to press and deform the housing;
And a controller for detecting whether the pressing plate is deformed by the light divergence time and the light reception time of the optical sensor module to detect a passing object passing through the housing.
The pressing plate is a passing object detecting device, characterized in that the metal plate having elasticity. delete The method of claim 1, wherein the housing is made of a lower plate and the upper plate, the upper surface of the lower plate is formed in the longitudinal direction, the bottom surface of the groove a plurality of optical sensor modules are installed in the longitudinal direction of the bottom surface and the pressing The plate is installed on the upper portion of the optical sensor module, the upper plate is passed through the object detection device, characterized in that the pressing portion protrudes downward on the bottom surface to press the pressing pieces when the upper surface is pressed by the object. A pressing plate connected to both ends of the side portions having a predetermined width and both sides thereof, and having a plurality of pressing pieces separated from each other; Optical sensor modules that emit light to the pressed pieces and receive light reflected from the pressed pieces; A first through-object detecting device in which the pressing plate and the optical sensor modules are received, and including a housing which transmits and pressurizes an external pressure to the pressing pieces of the pressing plate to deform;
A second passing object detecting device installed in the same shape as the first passing object detecting device and spaced apart from the first passing object detecting device by a distance L on the road;
Detects a passing time T, which is a time difference when passing through one of the first passing object detecting device and the second passing object detecting device and passing the other, and dividing the passing time T by the distance L to determine the speed of the bicycle. Bicycle detection system comprising a controller for detecting.

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