JPH0614321A - Control system - Google Patents

Abstract

PURPOSE:To provide a control system for controlling an object to be controlled in accordance with the movement of a human by automatically detecting the movement from a monitoring camera. CONSTITUTION:This fountain control system is constituted of a fountain nozzle N, a mobile object detecting means 2 for detecting a mobile object around the nozzle N and a fountain control means 5 for controlling the nozzle N in accordance with the motion of the mobile object detected by the means 2. The means 2 is constituted of an image pickup means 3 for photographing the periphery of the nozzle N as an area to be monitored and an image processing means 4 for detecting the mobile object and its position based upon image information photographed by the means 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a controlled object, a moving object detecting means for detecting a moving object in a space near the controlled object, and a motion of the moving object detected by the moving object detecting means. Accordingly, the present invention relates to a control system composed of control means for controlling the operation of the controlled object, for example, applied to an amusement device using a fountain nozzle provided in a pond such as an amusement park or a park. And a fountain nozzle,
It is composed of a moving body detecting means for detecting a moving body (human being etc.) around the fountain nozzle, and a fountain control means for controlling the fountain nozzle according to the movement of the moving body detected by the moving body detecting means. The present invention relates to a fountain control system and the like.

[0002]

2. Description of the Related Art Conventionally, as a moving body detecting means, a piezoelectric type sensor is embedded in a sidewalk where a person walks in a space near an object to be controlled, and when a person walks on the sidewalk, a voltage which changes depending on the weight thereof. It has been considered that the position is detected by detecting the position. For example, in the amusement device using the fountain nozzle described above, a piezoelectric sensor or the like is embedded in the boardwalk around the pond, or an infrared sensor or a microwave sensor is used from the upper space to detect a person near the pond. It was considered to collect information such as if you were in.

[0003]

However, in the case where a piezoelectric sensor or the like is embedded in the boardwalk as the above-mentioned moving body detecting means, not only the wiring work becomes large, but also
There is a drawback that it is impossible to provide such a sensor in the whole area and it is limited to a specific place, and in the case of using an infrared sensor or a microwave sensor, a special device for that purpose is required, Moreover, since these devices have directivity, the detectable area is narrow, and a plurality of devices must be installed to cover the entire detection target area. An object of the present invention is to eliminate the above-mentioned conventional drawbacks.

[0004]

In order to achieve this object, the control system according to the present invention is characterized in that an image pickup means for picking up an image of a moving object detection means with a space in the vicinity of a controlled object as a target area, and an image pickup means therefor. The image processing means for detecting the moving body and its position on the basis of the video information photographed by. The fountain nozzle movably attached via a moving mechanism, a moving body detecting means for detecting a moving body around the fountain nozzle, and the fountain according to the movement of the moving body detected by the moving body detecting means. In a fountain control system including a fountain control means for controlling nozzles, as a characteristic configuration thereof, an imaging means for imaging the moving body detection means with a periphery of the fountain nozzle as a target area, and an imaging means therefor. It is composed of a moving body and an image processing means for detecting the position of the moving body on the basis of the video information photographed by. And in the above-mentioned composition, it is preferred that the above-mentioned image pick-up means is a surveillance camera of an object field.

[0005]

According to the present control system, the image information of the target area photographed by the image pickup means is image-processed by the image processing means to detect the presence and the position of the moving body, and the detected moving body and the position data thereof are detected. It is used for the control data for the preset control object, and the image pickup means (for example, CCD camera) is used as a wide area moving body detection sensor.

For example, by comparing a previously captured background image with a current captured image, some object other than the background can be detected, and if the position of this object is tracked, it can be detected as a moving object. In this way, when the moving body is detected by the image processing means, the control means controls the controlled object.

For example, when applied to a fountain control system, if a person exists in the image information around the pond photographed by the image pickup means, the image processing means performs image processing to detect the presence and the position of the person, Based on the detected person and the position data thereof, the fountain control means controls the fountain nozzle, which is an object to be controlled, to intermittently eject water according to the movement of the person.

If the image pickup means is a surveillance camera for the target area, on the other hand, the surveillance staff waiting in the surveillance room is the video information captured by the camera and reproduced on the monitor. On the other hand, while visually monitoring the information, on the other hand, the control data for controlling the object can be extracted using the same video information, so that the utilization efficiency is improved.

[0009]

According to the present invention, as the moving body detecting means, the position and the movement of the moving body are detected from the image pickup means which is a wide area moving body detecting sensor for detecting the moving body over the entire range of the target area and the image information thereof. It is possible to provide a very economical and useful control system because it can be configured with an image processing means that operates.

[0010]

EXAMPLE An example in which the control system according to the present invention is applied to a fountain control system will be described below. As shown in FIGS. 2 and 3, the fountain control system mounts a plurality of fountain nozzles N on the entire surface of the pond 1 built on the site of the park P at regular intervals and takes a walk around the pond 1. In accordance with the moving body detecting means 2 for detecting a person and the motion state of the person detected by the moving body detecting means 2, the nozzles for ejecting water among the fountain nozzles N are sequentially approached toward the person. Control is performed so that the water is switched or sequentially switched along the moving direction of the person, or when the person approaches, water is suddenly ejected from the fountain nozzle N or intermittently ejected, or the ejection strength thereof. Is variably controlled to entertain a person with a fountain control means 5. That is, the fountain nozzle N becomes the controlled object 6. The moving body detection means 2 includes an image pickup means 3 for picking up an image of the area around the fountain nozzle N as a target area, and an image processing means 4 for detecting the moving body and its position on the basis of image information picked up by the image pickup means 3. It is composed of.

The image pickup means 3 is one of the color CCD cameras for monitoring mounted above the monitoring tower T of the park P, so that the entire circumference of the pond 1 can be seen. The video information photographed by the image pickup means 3 is transmitted to the monitor room in the monitoring tower T and reproduced on the monitor screen, and recorded on the video tape by the video tape recorder VTR, and at the same time, in the image processing means 4. Is entered.

As shown in FIG. 1, the image processing means 4
Is for detecting whether or not a moving object is present in the image information taken by the image pickup means 3, and is stable regardless of the presence or absence of the moving object from the continuous image information taken by the image pickup means 3. A reference screen creating unit 41 that creates a background image, a reference memory 42 that stores the background image, and one frame of the video information captured by the image capturing means 1 that is the video information for every fixed time (for example, 0.1 seconds). A comparison memory 43 for sampling and storing image data, and an identification memory 44 for storing difference data between the reference memory 42 and the comparison memory 43 and binarizing the result with a set threshold value. And an arithmetic unit 45 that performs arithmetic using these memories. That is,
If the reference memory 42 and the comparison memory 43 are substantially the same image, the data stored in the identification memory 44 shows a value of almost zero over the entire pixel, and therefore, as a binary image based on a certain threshold value. It will be represented as either "black" or "white", but if there is any new object in the background image, it will be "black" or "white" in the background.
The object is extracted as a "white" or "black" binary image on the ground. The determination unit determines the presence or absence and the location of the target moving object based on the obtained size, position, number, and time change of the moving object.

The fountain control means 5 is based on the input output data of the image processing means 4, that is, the position data indicating the position of a person near the pond 1 and the direction data indicating the moving direction of the fountain. A control circuit 51 using a microcomputer MC for controlling the ejection of water from the nozzle N and controlling the ejection amount of water from the fountain nozzle N, the ejection amount of water from the pump P in each fountain nozzle N, and the like. The valve mechanism 53 for adjustment, the interface circuit 52 for transmitting the output signal of the control circuit to the valve mechanism, and the like. Based on a preset program, the fountain control means 5 moves the nozzle N that ejects water in the direction of the person or along the moving direction of the person, or ejects water from the nozzle N. A person is entertained by performing control such as changing the strength or intermittently ejecting water from the nozzle N.

Another embodiment will be described below. In the above-described embodiment, the water ejection control is performed for the plurality of fountain nozzles N fixed to the pond, but the control method is only an example, and an arbitrary control method for entertaining a person is provided. Can be applied. Further, the nozzle N is attached to the pond via a posture adjusting mechanism of the nozzle N such that the ejection direction from the nozzle N is different, or a moving mechanism capable of moving the nozzle N itself, and the nozzles N are attached according to the movement of a person. Variably control the posture of
It may be configured to control the movement of the nozzle N.

In the above embodiment, the case where the controlled object 6 is the fountain nozzle N in the park has been described, but the present invention is not limited to this and can be applied to any object. For example, in an amusement park, when a person enters a dangerous area such as a track of a vehicle, the vehicle can be stopped or an alarm can be issued as a safety measure.

It should be noted that although reference numerals are given in the claims to make the objects of the drawings convenient, the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a block configuration diagram of a control system.

FIG. 2 is an explanatory diagram of a fountain control system.

FIG. 3 is an explanatory diagram of a fountain control system.

[Explanation of symbols]

 2 moving body detection means 3 imaging means 4 image processing means 5 control means 6 control object

Claims (3)

[Claims] 1. A controlled object (6), a moving body detecting means (2) for detecting a moving body in a space near the controlled object (6), and a moving body detecting means (2) for detecting the moving body. A control system comprising a control means (5) for controlling the operation of the controlled object (6) according to the movement of the moving body, wherein the moving body detection means (2) is a controlled object. An image pickup means (3) for taking an image of a space in the vicinity of the object (6) as a target area; and an image processing means (4) for detecting a moving body and its position based on video information taken by the image pickup means (3). A control system composed of. 2. A fountain nozzle (N) and a moving body detecting means (2) for detecting a moving body around the fountain nozzle (N).
And a fountain control means (5) for controlling the fountain nozzle (N) according to the movement of the moving body detected by the moving body detection means (2). An image capturing unit (3) that captures the moving object detection unit (2) with the periphery of the fountain nozzle (N) as a target area, and a moving object and an image capturing unit based on image information captured by the image capturing unit (3). A fountain control system comprising image processing means (4) for detecting its position. 3. The control system according to claim 1, wherein the imaging means (3) is a camera for monitoring the target area.