JPH082168Y2 - Unmanned vehicle stop system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention relates to a place where a vehicle needs to be retracted and stopped at a predetermined position or equipment, for example, a hopper of a concrete pump truck at a construction site, and a ready-mixed concrete mixer truck. The present invention relates to an unmanned guidance car stop device that is conveniently used when it is necessary to accurately approach a vehicle (hereinafter referred to as a raw concrete car) by a backward operation and stop the vehicle.

2. Description of the Related Art In the construction of concrete buildings and the like, when it comes to the concrete pouring process, it is common practice to carry out concrete transportation and concrete pouring to each floor of the building with a concrete pump truck installed on the ground. In this case, it is required to supply ready-mixed concrete to the pump car hopper according to the operating condition of the concrete pump car. For this reason, ready-mixed concrete vehicles are always standing by nearby, and when the ready-mixed concrete in the hopper falls below a certain level, it immediately approaches the popper and supplies the ready-mixed concrete one after another.

Conventionally, a three-member system has been adopted for crew members of concrete pump trucks, and one of the workers (operator) has always provided sufficient guidance to approach the ready-mixed concrete truck.

However, recently, there is a shortage of workers for concrete pump cars, and it is difficult to secure a sufficient number of workers. In order to streamline and save manpower, pump car crews are shifting to a two-person system, and wireless remote control is used. The work of pump trucks by only two boom end workers has been generalized. For this reason, there is no guidance of the ready-mixed concrete car to the pump car hopper, and it is the actual situation that the ready-mixed car must be accurately brought close to the pump car hopper and stopped only by the skill of the driving car of the ready-mixed car.

Problems to be Solved by the Present Invention It is necessary to accurately approach a ready-mixed concrete vehicle to the hopper of a pump vehicle and stop it without the operator's guidance and rely on the technology and intuition of the driver's vehicle of the ready-mixed concrete vehicle. It is difficult for even a skilled person, because it is difficult. For this reason, there are occasions of collisions or contact between the pump car and the ready-mixed car, which is dangerous and may cause the work of the concrete pump car to be disturbed, which is a problem to be solved.

Means for Solving the Problems As means for solving the above-mentioned problems of the prior art, an unmanned vehicle detent device for a vehicle according to the present invention includes a detent 2 fixed at a stable position on a road surface 1 and a detent near the detent 2. Therefore, the traffic light 3 is placed at a position where the driver of the vehicle 4 can easily confirm it. A distance sensor 6 for measuring the distance to the tire 5 of the approaching vehicle 4 is installed in the car stop 2. Further, the traffic light 3 is provided with signal display portions 3a, 3b, 3c for displaying stepwisely the approach state of the tire 5 to the car stop 2 according to the distance measurement value of the distance sensor 6 such as safety, caution, and stop. Is characterized by.

Action The wheel stop 2 reliably stops the vehicle tire 5 when it hits it.

The distance sensor 6 of the car stop 2 continuously measures the distance to the tire 5 in real time.

In the traffic signal 3, the reception control unit (microcomputer) calculates the distance measurement signal (electrical signal, etc.) in real time by the distance sensor 6, and the safety signal display unit 3a displays the signal when the tire 5 is still far away. When the tire 5 comes close to the point where caution is required, the caution signal display section 3b displays a message to that effect, and the tire 5 stops at the bollard 2.
Just before almost touching, the stop (danger) signal display section 3c displays.

Accordingly, the driving vehicle of the vehicle 4 drives the vehicle backward while monitoring the signal display portions 3a, 3b, 3c of the traffic light 3, and particularly when the caution signal display portion 3b is displayed, the backward speed of the vehicle 4 is greatly increased. When the stop signal display section 3c is displayed, the vehicle 4 is slowly stopped, and the tire 5 is slowly brought into contact with the bollard 5 and the operator feels the impact (slight shock) and stops. You can do it.

Embodiment Next, an embodiment of the present invention shown in the drawings will be described.

FIG. 1 shows the overall construction of a car stop device according to the present invention. The car stop 2 is fixed at a predetermined position on the road surface.
And a traffic signal 3 which is placed near the bollard 2 and which is placed in a position where the driver of the vehicle can easily see it visually from the driver's seat of the vehicle.

The car stop 2 is configured as a reinforced concrete block (or a block made of wood or other material) having a size and strength necessary and sufficient for receiving the tire 5 of the vehicle. A recess 2a having a depth that does not allow the tire 5 to come into direct contact with the front surface is formed, and a distance sensor 6, 6 for continuously measuring the distance to the tire 5 of the vehicle in real time is provided on the inner surface of the recess 2a. Is installed.

The traffic signal 3 has a built-in reception control unit (microcomputer) that receives a distance measurement value (electrical signal) from the distance sensor 6 to the tire 5 and performs arithmetic processing. The reception control unit calculates the actual distance in real time by calculating the measurement signal (electrical signal, etc.) value from the distance sensor 6, and the distance is within the safe range (for example, 1.5 m or more).
, The range that requires attention (for example, about 1.5 to 0.3 m), or the dangerous range that should be stopped (for example, 0.3 m or less), and the corresponding signal display units 3a to 3c. Operates in real time. For example, the signal display section 3a for notifying the distance of the safe range is displayed by a blue lamp, the signal display section 3b for notifying the distance of the caution range is displayed as a yellow lamp, and the signal display section 3c for notifying the stop range is displayed by a red lamp. Each is easily configured for visual confirmation. However, the configuration of the signal display unit is not limited to the three-stage lamp display. For example, it is possible to carry out a display by an alarm of a different tone color, or a configuration in which a change in distance is displayed digitally or in analog form by the length of the bar graph and the change in color tone.

Next, FIG. 3 to FIG. 5 show an example in which the vehicle stopping device having the above-mentioned construction is used for unmanned guidance of the ready-mixed concrete vehicle 4 which is brought close to the hopper 7a of the concrete pump truck 7 at the construction site and stopped at a proper position. Is shown.

The car stop 2 is located at a position where the rear wheel tire 5 of the ready-mixed concrete car 4 just hits the hopper 7a of the concrete pump car 7 with the chute 4a of the ready-mixed car 4 connected to the proper position as shown in FIG. It is used by placing it on the road surface 1. The traffic signal 3 is also placed at the most visible position when the driver of the ready-mixed vehicle 4 monitors the rear while driving backward in the driver's seat.

Therefore, the driver of the ready-mixed concrete vehicle 4 simply indicates the stop position in the backward driving by the signal display section of the traffic light 3.
If you look at 3a to 3c, you only have to pay attention to the state that it changes from blue to yellow, and then to red, and when the red light comes on, you almost stop the reverse speed and the rear wheel tire 5 slowly stops. All you have to do is to drive to the end and stop, there is no technical difficulty, and accurate positioning stop can be done without difficulty.

The car stop device of the present invention can be implemented to properly park a large-scale parking lot such as a department store or a parking lot for home use.

Advantageous Effects of the Present Invention As described above in detail with reference to the embodiments, the vehicle unmanned vehicle stopping device according to the present invention can determine an accurate and safe stop position of a vehicle without a guider. Therefore, for example, in addition to contributing to the rationalization and labor saving of the concrete pump car work at the construction site, it also greatly contributes to the prevention of accidents when the car is parked and the speedy and easy parking work.

[Brief description of drawings]

FIG. 1 is a perspective view showing the entire construction of a car stop device according to the present invention, FIG. 2 is a sectional view of the car stop, and FIGS. 3 to 5 are process diagrams when the car stop device is used for concrete pump truck work. Is. 1 ... Road surface, 2 ... Car stop 4 ... Vehicle, 3 ... Traffic light 5 ... Tire, 6 ... Distance sensor 3a-3c ... Signal display section

Claims (1)

[Scope of utility model registration request] 1. A vehicle stop, which is fixed at a predetermined position on the road surface, and a traffic light, which is placed in the vicinity of the vehicle stop so that a driver of the vehicle can easily confirm the vehicle stop. A distance sensor that measures the distance between the tire and the tire is installed, and the traffic signal is a signal that indicates the approach state of the tire to the car stop step by step such as safety, caution, and stop according to the distance measurement value of the distance sensor. An unmanned vehicle detent system for vehicles, characterized by having a display unit.