JPH0579232A - Automatic guide system for door - Google Patents

Abstract

PURPOSE:To automatically release a door locking mechanism to open a door by comparing stored image data with image information from an image pickup means. CONSTITUTION:Numerical data are extracted by an edge extraction processing portion 204 from image information transmitted from a camera 101 and are stored in an image data storage portion 206 via a second image memory 205. The stored image data reinput to the second image memory 205 are input to a checking portion 209 and are compared with numerical data from the camera 101. According to the result of this comparison by the checking portion 209 a voice data recording portion 202 voices via an interface 201 voice data recorded in progress, and the key locking mechanism 105 of a door 104 is controlled by a key lock control portion 203 so that the door can be opened.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic door guidance system for automatically unlocking a door or automatically audibly by identifying a visitor's chest badge.

[0002]

2. Description of the Related Art Conventionally, in the case of door guidance for a building or the like, it is often the case that an instruction is received at the reception of the building to search for the door and the door is opened.
Recently, there is a wireless door automatic guide system as shown in FIG.

In this automatic door guidance system, a visitor is allowed to carry a wireless transmitter 108 and the receiver 10 of this system is used.
The signal from the transmitter 108 is received at 9 and the system control unit 106 discriminates it, and if the person is a person concerned, the key lock mechanism 105 embedded in the knob of the door 104 is unlocked to open the door. Interphone 103 if not applicable
For example, a voice is generated saying "I cannot enter from this door" to inform the visitor and guide him.

[0004]

However, in the automatic door guidance system shown in FIG. 6, when two or more people visit at the same time, the wireless signals of the two interfere with each other and the visitors cannot be accurately identified. Also, the transmitter must transmit a code signal for identifying the visitor, which makes the control circuit complicated and expensive.

Therefore, an object of the present invention is to automatically recognize the type of chest badge of a visitor by recognizing the type of the chest badge of a visitor automatically even when two or more visitors approach the door at a time, and to automatically activate the key lock mechanism of the door. An object of the present invention is to provide an automatic door guidance system that unlocks the door so that it can be opened and generates a guidance message.

[0006]

To achieve the above object, in an automatic door guide system according to the present invention, an image pickup means for picking up an image of a chest badge of a person approaching the door and image information from this image pickup means are compared. In order to do so, the image data storage means for storing and storing the image information of a plurality of chest badges in advance and the image information from the image pickup means and the image information from the image data storage means are sequentially compared to make a collation determination. It is characterized by comprising a collation judging means, a door unlocking means which operates based on a comparison result of the collation judging means, and a sound generating means which generates a sound.

[0007]

The imaging device captures an image of the chest badge of a person approaching the door and inputs image data to the system. Also,
The image data storage means stores and stores image information of a plurality of chest badges for comparison with the chest badges of the person imaged by the image capturing means. Then, the collation determination means makes a collation determination by sequentially comparing the image information from the image pickup means with the image information from the image data storage means.

Based on the comparison result of the collation judging means, the unlocking means of the door is operated to automatically unlock the key lock mechanism embedded in the knob part of the door so that the door can be opened, or by the voice generating means. For example, say a guidance message saying "I can't enter through this door."

[0009]

1 is a block diagram showing the overall construction of an embodiment of an automatic door guide system of the present invention, and FIG. 2 is a schematic layout diagram of this system. In this automatic door guide system, the key lock mechanism 105 embedded in the door 104 is controlled by the key lock control unit 203 of the system control unit 106 to close the door 104. Interphone 1
The audio data input from 03 is interface 201.
Is recorded in the voice data recording unit 202 via.

A camera 101 attached to a rotating mechanism 102.
The image information from is input to the edge extraction processing unit 204,
The output data from the edge extraction processing unit 204 includes the first image memory 208, the second image memory 205, and the rotation control unit 207.
The rotation control unit 207 outputs a control signal for controlling the rotation mechanism 102, the output data of the second image memory 205 is supplied to the image data storage unit 206, and the output of the first image memory 208 is output. Data is collation judgment unit 2
09 is given.

The output data of the image data storage unit 206 is again input to the second image memory 205, and the data input to the second image memory 205 is given to the collation judging unit 209. The output signal of the collation determination unit 209 is given to the voice data recording unit 202 and the key lock control unit 203, and the voice data recording unit 202 outputs the voice data previously recorded based on the comparison result of the collation determination unit 209 to the interface 201. Is uttered by the interphone 103 via. The output signal of the key lock control unit 203 is the collation determination unit 209.
The key lock mechanism 105 is controlled on the basis of the comparison result of 1) so that the door 104 can be opened.

The operation of the structure of the automatic door guide system as described above will be described in detail with reference to FIG. 3 showing the image information from the camera 101 of the present system, the flowchart of FIG. 4 and the flowchart of FIG. As a first embodiment, the present system installs the camera 101 in the vicinity of the door 104, turns on the power of the system, and installs the key lock mechanism 105 embedded in the knob part of the door 104 into the system control unit 10.
The key lock control unit 203 of 6 controls the door 104 to be closed. Before this system operates, the interphone 1
For example, a guidance message "Do not enter from this door" is input by 03, and is recorded in the voice data recording unit 202 via the interface 201 (N1).

After recording the guide message (N2), the camera 101 attached to the rotating mechanism 102 images the numerical data of the chest badge worn by the visitor, and the image information from the camera 101 is sent to the edge extraction processing section 204. Enter (N
3). The edge extraction processing unit 204 extracts only numeric data from the input image information, binarizes it, and inputs it to the first image memory 208, the second image memory 205, and the rotation control unit 207. The rotation control unit 207 controls and adjusts the rotation mechanism 102 so that the numerical data extracted by the edge extraction processing unit 204 is located at the center of the image pickup screen of the camera 101 (N4).

As shown in FIG. 3D, the numerical data 3
When 02 is located at the center of the image pickup screen of the camera 101,
The numerical data 30 input to the second image memory 205
2 is stored in the second image memory 205 (N5). The numerical data 302 stored in the second image memory 205 is stored in the image data storage unit 206 (N6). The above processing method is repeated several times to create a numerical data database (N7).

Next, the system is put into an operating state, and FIG.
When there is a change in the input image from the camera 101 as in (a) (N8), the camera 101 performs the following process in order to capture the numeric data of the visitor's chest badge 107 shown in FIG. 3 (b). To do. First, the image information from the camera 101 is input to the edge extraction processing unit 204. The edge extraction processing unit 204 extracts only numeric data from the input image information, binarizes it, and inputs it to the first image memory 208, the second image memory 205, and the rotation control unit 207. The rotation control unit 207 controls and adjusts the rotation mechanism 102 so that the numerical data extracted by the edge extraction processing unit 204 is located at the center of the image pickup screen of the camera 101 (N9). The collation determination means for numerical data will be described below. As shown in FIG. 3C, when the numerical data 301 is located at the center of the image pickup screen of the camera 101, only the numerical data is extracted by the edge extraction processing unit 204 and binarized (N10). The data is stored in the first image memory (N11).
At this time, in order to compare with the numerical data 301 from the camera 101, the numerical data 3 is stored in the image data storage unit 206 that previously stores a plurality of numerical data 302 as a database.
One 02 is read out (N12), and this numerical data is stored in the second image memory 205 (N13).

The collation judging section 209 compares the numerical data stored in the first image memory 208 and the numerical data stored in the second image memory 205 to judge the collation (N14). As a means for comparing the numerical data, the numerical data stored in the first image memory 208 and the second image memory 205 is calculated by subtracting pixel by pixel. If the numerical data match, the numerical data 303 disappears as shown in FIG. If they do not disappear, they are inconsistent.

When the numerical data match, a signal is given from the collation judging unit 209 to the key lock control unit 203, and the key lock control unit 203 controls the key lock mechanism 105 so that the door can be opened (N15). ). When the numerical data do not match, the image data storage unit 2
One of the next numerical data is read out from 06 and stored in the second image memory 205. The read numerical data is repeatedly compared by the collation judging unit 209.

All the numerical data are compared by the collation judging unit 209 (N16), but when there is no matching numerical data, an output signal is given from the collation judging unit 209 to the voice data recording unit 202 and the voice data is recorded first. Data recording part 2
The guide message "Do not enter from this door" recorded in 02 is uttered by the interphone 103 via the interface 201 (N17).

In the above embodiment, the door unlocking means and the voice uttering means for uttering a voice which are operated based on the comparison result of the collation judging section 109 have been described. The automatic guidance system inputs two or more guidance messages such as "Do not enter from this door" and "Please come in" to the voice data recording unit 202 by the interphone 103 and record them via the interface 201. To do.

In the same manner as described above, the collation judging unit 209 compares the numerical data and makes a collation judgment. When the numerical data coincide, a signal is sent from the collation judging unit 209 to the key lock control unit 203 and the voice data recording unit 202. The interface message, which is given and recorded in the voice data recording section 202, "Please come in" is given.
The key lock control unit 203 controls the key lock mechanism 105 so that the door 104 can be opened at the same time when the interphone 103 is uttered via the.

All the numerical data are compared by the collation judging unit 209, but when there is no coincident numerical data, the collation judging unit 209 gives an output signal to the voice data recording unit 202, and the voice data recording unit 202. The guidance message "I can't enter from this door" recorded at is uttered by the interphone 103 via the interface 201. Other operations are the same as those in the first embodiment.

As a third embodiment, this automatic door guidance system stores the numerical data in the image data storage unit 206, and when storing the numerical data, for example, the numerical data
5 is registered in the A area as 6 areas of the above numerical data as the B area, which is divided into areas and registered. In addition, the image data storage unit 2
Doors 104 that can be opened for each area 06 (for example, door A,
Allocate and set B).

Then, the collation judging unit 209 sequentially reads out the numerical data of the area allocated to the door 104 (for example, A) from the image data accumulating unit 206, and compares the numerical data to make a collation judgment. A signal is given from the collation judging unit 209 to the key lock control unit 203 and the voice data recording unit 202 so that the voice data recording unit 20 can be operated.
The key lock controller 203 controls the key lock mechanism 105 so that the door 104 can be opened at the same time as uttering the guide message "Please come in" recorded in 2 on the interphone 103 via the interface 201.

The door 104 is checked by the collation judging unit 209.
Numerical data of the area assigned to (for example, A) are sequentially read from the image data storage unit 206 and compared to make a collation determination, but when they do not match, the numbers of the area assigned to the next door 104 (for example, B) Data is sequentially read from the image data storage unit 206 and compared to make a collation determination.
At this time, if the above numerical data match, the guide message "Do not enter from this door" and the guide message "Please enter from door B" recorded in the voice data recording unit 202 are inter- ed via the interface 201. Make the horn 103 speak. Door A and Door B
If there is no match with the above-mentioned numerical data assigned to, the guidance message "You cannot enter through the door of the main building" is uttered by the interphone 103 via the interface 201. Other operations are the same as those in the first and second embodiments.

[0025]

As described above, according to the door automatic guide system of the present invention, two or more visitors can approach the door at a time by recognizing the type of the chest badge of the visitor by image recognition. However, there is no risk of interference as in the wireless system, and reliable door unlocking control can be performed. Further, even when it is determined that the user cannot enter the room through the door, the voice generating means of the present system can generate an appropriate guidance message for the visitor.

[Brief description of drawings]

FIG. 1 is a block diagram of an automatic door guide system of the present invention.

FIG. 2 is a schematic installation diagram for explaining an automatic door guide system of the present invention.

FIG. 3 is a diagram showing video information from a camera of the present system.

FIG. 4 is a flowchart for explaining a processing procedure (before operation) of the automatic door guidance system of the present invention.

FIG. 5 is a flowchart for explaining a processing procedure (after operation) of the automatic door guidance system of the present invention.

FIG. 6 is a schematic installation diagram for explaining a conventional automatic door guide system.

[Explanation of symbols]

 101 camera 102 rotation mechanism 103 interphone 104 door 105 key lock mechanism 106 system control unit 201 interface 202 voice data recording unit 203 key lock control unit 204 edge extraction processing unit 205 second image memory 206 image data storage unit 207 rotation control Unit 208 first image memory 209 collation determination unit

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Claims (1)

[Claims] 1. An image pickup means for picking up a chest badge of a person approaching a door, and an image data storing means for storing and storing image information of a plurality of chest badges in advance for comparison with image information from the image pickup means. And a collation judging means for sequentially comparing the image information from the image pickup means with the image information from the image data accumulating means to make a collation judgment, and unlocking of a door operated based on the comparison result of the collation judging means. An automatic door guidance system comprising: means and a sound generating means for generating a sound.