JPH0347680Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to an unmanned measuring device for automobile races and the like.

(Conventional technology and its problems) In addition to a rally-like method in which cars compete for speed by driving through fields or mountainous areas, there are also methods in which automobiles are raced in urban areas as racetracks to compete for lap speed. There is a method of competing for speed by going around a prepared track, and especially in the latter two, the final ranking is determined by the number of laps and lap time.

To do this, it is important to measure the time taken to cross the goal each lap and the ranking in each lap. Conventionally, the former method involved placing a pair of photocells in the width direction of the goal of the course and measuring the lap time by blocking the light beam with a vehicle, but the latter method, i.e., determining passing vehicles, This was done solely by the judge's visual inspection, and each time a lap was passed, it was recorded on a lap table or counted by operating a push-button switch.

However, this method requires multiple personnel to be assigned to each participating vehicle, which requires an extremely large number of personnel.Furthermore, it is not easy to check objects traveling at high speeds, and checking errors may occur due to fatigue, etc. There was also the problem that determining the ranking for each lap and determining the final result took time.

(Means for solving the problem) The present invention solves the above-mentioned problems and can automatically and unmannedly determine the ranking of each lap. It is possible to accurately determine the position of each lap of a large number of vehicles traveling at high speeds of 200 km/h, regardless of shape, size, weather conditions such as fog or mist, or brightness conditions such as nighttime. The purpose of this invention is to provide a device of this type that is easy to implement.

In order to achieve this objective, the present invention does not rely on the color identification (image processing) of the moving object using a television camera, but instead actively oscillates light beams with different codes (wavelengths, waveforms, and frequencies) from the moving vehicle. This is an electromagnetic wave transmission/reception method that directly receives and distinguishes this on the roadside.In other words, it is equipped with a light oscillating section and a vehicle-specific code setting section that sets a different wavelength, waveform, or frequency for each vehicle at an appropriate location on the vehicle. A light beam oscillator is installed on the road side, and a photoelectric detector is installed on the road side to receive the light beam emitted from the light beam oscillator of a passing vehicle and convert it into an electrical signal, and a photoelectric detector that processes the signal from the photoelectric detector and transmits it to each vehicle. The present invention is characterized in that it includes a passing vehicle identifier that determines the vehicle corresponding to the code.

For example, infrared rays such as near-infrared rays or laser beams are used as the light beam, and light beams with different codes (waveforms, wavelengths, etc.) are oscillated for each vehicle.

(Example) Examples of the present invention will be described below with reference to the accompanying drawings.

1 and 2 illustrate an unmanned measuring device for automobile races and the like according to the present invention, where 1 is a vehicle and 2 is a light beam oscillator, which is attached to a suitable location on the vehicle 1.

As shown in FIG.
and a light beam oscillator 21 including a light emitting diode or the like.
and a vehicle-specific code setting section 22 consisting of a microcomputer or the like, and the vehicle-specific code setting section 22 sets a light beam of a different wavelength, waveform, or frequency for each vehicle. An example of this is a method in which a confirmation pulse a is followed by a short wavelength pulse b and a long wavelength pulse c, as shown in FIGS. 4A to 4D.

Reference numeral 3 denotes a running path, and a support 4 is provided at the goal portion of the path, and a photoelectric detector 5 is installed on the support 4 with a light receiving portion 51 directed toward the light beam oscillator. Although the support body 4 is a pillar on the side of the running road in FIG. 1, it may alternatively be a beam on the upper side of the running road as shown in FIG.

The photoelectric detector 5 detects the vehicle 1 passing the goal.
It has a light receiving section (for example, a light receiving cell) 51 for receiving the light beam emitted from the light beam oscillator 2 attached to the vehicle, and a converting section 52 that converts and amplifies the light beam into an electric signal, and is connected to the passing vehicle identifier 6. The passing vehicle identifier 6 quantitatively or qualitatively processes the electrical signal from the photoelectric detector 5, and compares it with the light beam characteristics of the vehicle set corresponding to the vehicle-specific code setting section 22. It has a mechanism to identify the relevant vehicle. This passing vehicle identifier 6 is built into or connected to a computer 7 for recording and calculation by wiring, and the computer is connected to an electronic display panel or the like.

FIG. 5 shows an example of how the light beam oscillator 2 is attached to the vehicle 1. For example, in a form car, it is attached to the roll bar 11 behind the driver's seat at a required angle (for example, 45 degrees). The attachment method is arbitrary, and in the illustrated example, a metal fitting 112 having an open storage box 111 at the front is fixed to the roll bar 11, and the storage box 111 is fixed to the roll bar 11.
A light beam oscillator 2 is housed in the housing through a cushion material 113. Alternatively, a part of the roll bar 11 may be cut open and closed, the light beam oscillator 2 may be stored in the roll bar space, and the light beam may be emitted from a window provided in the roll bar.

In addition, if the vehicle is a stock car, the light beam oscillator 2 is installed in an exposed state or embedded in the body, etc., and if the vehicle is a two-wheeled vehicle, it is installed in a part of the handlebar or the front hood, etc. That's fine.

(Function) Since the present invention has the above-described configuration, in the case of automobile races, etc., a support body 4 is provided near the goal area or pit of the course, and a photoelectric detector 5 is attached to this support body 4.
Attach it at the required angle, and install a beam oscillator 2 on each participating vehicle.
Install.

At this time, the beam oscillator 2 makes the oscillation output the same for each vehicle, and the vehicle-specific code setting section 22 allows the beam oscillator 21 to output wavelength characteristics, waveform characteristics, etc. that differ for each vehicle, as illustrated in FIG. Preset the identification code. The passing vehicle identifier 6 is programmed with the electrical characteristics and vehicle number corresponding to the settings of the vehicle-specific code setting section 22 and stored therein.

The race starts in this state, and when the first lap ends and the leading car crosses the finish line, at that moment the light beam from the light beam oscillator 2 attached to the car in question is transmitted to the photoelectric sensor installed on the support body 4. The light is received by the target detector 5.

The photoelectric detector 5 converts the light beam into an electric signal, amplifies it, and sends it to the passing vehicle identifier 6. The code is electrically identified and the information is inserted into the computer 7, where the passing order and lap time for the first lap are calculated and displayed on a display boat or the like.

Thereafter, each time the vehicle crosses the goal, the photoelectric detector 5 receives the emitted light beam from the light beam oscillator 2 of the vehicle 1,
The ranking and lap for each lap are automatically measured.

Note that a plurality of photoelectric detectors 5 may be provided. In this case, an interlock circuit is constructed so that only the information from the photoelectric detector 5 and the photoelectric detector 6 that first detected the light beam from the vehicle is input into the computer 7 with priority, and the others are excluded. Just leave it there.

The present invention is suitable for measuring automobile races and two-wheeled vehicle races, but can also be used as a measuring means for various competitions in which ranking is competed.

In the method of identifying vehicles by capturing their color with a television camera, objects moving at high speeds of 200 to 300 km/h are given identification colors using stickers, etc., and even if the entire width of the finish line is scanned by a television camera, the object cannot be identified. The scanning line disappears instantly, and the identification color is absorbed by the body color, making it impossible to distinguish even if you analyze the color components.In order to improve identification, it is necessary to attach a large area of identification color to each vehicle. It would be necessary to repaint it, making it completely impractical, and making the Stetsker huge instead would increase air resistance, which would also be impractical. Furthermore, this method cannot be realized in the case of a two-wheeled vehicle with a small vehicle area, and since it is a monitoring method using a television camera, it is greatly affected by the weather and cannot be used in cases of fog, mist, or dark night. Furthermore, 3
Since primary colors are used as discrimination parameters, only six vehicles can be measured at most. The present invention does not have such difficulties.

[Effect of idea]

According to the present invention as explained above, a light beam oscillator equipped with a light beam oscillator and a vehicle-specific code setting section that sets a different wavelength, waveform, or frequency for each vehicle is installed at an appropriate location on the vehicle, and a light beam oscillator is installed on the road side to detect passing vehicles. A photoelectric detector that receives a light beam emitted from a light beam oscillator and converts it into an electrical signal, and a passing vehicle identifier that processes the signal from the photoelectric detector to identify the vehicle corresponding to the vehicle-specific code. Therefore, the body color of the vehicle, the size of the vehicle,
Regardless of weather conditions such as fog or mist, or brightness conditions such as day or night, it is possible to accurately determine the position of each lap of a large number of vehicles traveling at high speeds of 200 km/h or more, and it is possible to accurately determine the position of each lap of a large number of vehicles traveling at high speeds of 200 km/h or more. Because it is only necessary to place them in the appropriate places such as near the goal and near the cockpit, excellent effects such as ease of implementation can be obtained.

[Brief explanation of the drawing]

Fig. 1 is a front view showing one embodiment of an unmanned measuring device for automobile races, etc. according to the present invention, Fig. 2 is a front view showing another embodiment of the present invention, and Fig. 3 is a block diagram of the device of the present invention. Figures 4A to 4D are waveform diagrams illustrating identification codes, and Figure 5 is a plan view showing an example of how the light beam oscillator is attached according to the present invention. 1... Vehicle, 2... Light beam oscillator, 5... Photoelectric detector, 6... Passing vehicle identifier.

Claims (1)

[Scope of utility model registration request] A light oscillator equipped with a light oscillator and a vehicle-specific code setting section that sets a different wavelength, waveform, or frequency for each vehicle is installed at an appropriate location on the vehicle, and on the roadside, the light oscillator emitted from the light oscillator of a passing vehicle is installed. An automobile characterized in that it is provided with a photoelectric detector that receives the signal and converts it into an electric signal, and a passing vehicle sorter that processes the signal from the photoelectric detector to determine the vehicle corresponding to the vehicle-specific code. Unmanned measuring device for races, etc.