JP2501906B2 - Setting method of position recognition area by transponding card - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method for setting a position recognition area by a transponding card, and particularly when recognizing the position of a moving body by using infrared rays, the recognition is distinguished. The present invention relates to a method of arbitrarily setting a limited area having one address that needs to be set.

(Prior Art) In order to monitor and control a moving body that moves in a limited plane, it is necessary to constantly and accurately grasp its position in the center. For this reason, a mobile unit is usually equipped with a transmitter / receiver having a communication function with the center so that the mobile unit can read its own position and send the information to the center. In general, sign posts (having their respective addresses) for transmitting position information are installed at key points and key points, and a mobile unit that enters the transmission area reads the position information. . In this case, light, wireless, sound wave or the like can be used as a method of communication from the sign post to the mobile body.

(Problems to be Solved by the Invention) However, it is very difficult to set the area by position recognition using wireless or sound waves, and it is difficult to accurately recognize the position. In other words, it is extremely difficult to limit the service area of a sign post that transmits one information signal having an address by radio, sound waves, etc., due to the directivity characteristics of those transmission media (phenomenon such as reflection, diffraction, and shielding). It was very difficult.

Therefore, the same applicant has already proposed that an antenna device for optical communication for performing communication with a moving body by using light (Japanese Patent Application No.
No. 2589) and a data communication method using a combination of infrared rays and radio waves (Japanese Patent Application No. 63-107814).

Hereinafter, a data communication system using a combination of the above infrared rays and radio waves will be described with reference to the drawings.

Fig. 4 is a block diagram of a conventional data communication system using a combination of infrared rays and radio waves.
The card is attached to a moving body to detect the position of the moving body. FIG. 5 is a block diagram of the ID card.

In FIG. 4, reference numeral 1 is an operator console C / C installed in a building management center or the like, a CPU (central processing unit) 2, a CRT /
KB (display / keyboard) 3 etc. are provided. Reference numeral 4 is a data transmission path, and 5 is a reception-only fixed station RR that receives a signal from the RTX (transmitter) of the ID card 20, which includes a weak radio wave receiver RRX6 and a signal processing one-chip microcomputer MPU7. Reference numeral 8 is a signal processing one-chip microcomputer MPU9 having the functions of the local control devices L, C and C, and an infrared transmitter ITX10 mainly including an infrared light emitting diode for transmitting data (position data) regarding the position of the ID card. It is a dedicated fixed station IT.

On the other hand, as shown in FIG. 5, the ID card 20 includes a weak radio wave transmitter RTX21, an infrared receiver IRX22, a signal processing one-chip microcomputer MPU23, a buzzer BZ24, a solar battery BAT25, and the like.

Therefore, in this system, fixed stations dedicated to each transmission
Position information for individual recognition is always transmitted from the IT for each fixed station, and the ID card 20 stores the position information of the closest fixed station IT for transmission. When the mobile unit changes its position, the position information of the next fixed transmission station IT is stored, and the management center can always grasp the latest position information.
In addition, individual identification information such as an ID code and additional information required by the system are stored in advance in each ID card 20, and the ID card 20 is stored in a moving object such as an animal or a human being to be managed. Please attach one by one.

Next, a position information transmission system using infrared rays will be described.

First, spatial transmission using infrared rays is performed as a transmitting / receiving means for position information and the like, and in principle, the optical spatial transmission system shown in FIG. 6 is used. That is, in FIG. 6, the input data is sent to the light emitting element 33 through the modulator 31 and the amplifier 32, and is received by the light receiving element 34 through the space from the light emitting element 33, and the received light data is the amplifier 35 and the demodulator. Received via 36.

The present invention is to arbitrarily set a position recognition area using such a system having a function of transmitting position information by infrared rays. That is, the present invention eliminates the above-mentioned problems, and provides a position recognition area setting method using a transponding card that employs light, particularly infrared rays, that allows highly accurate and arbitrary setting of the area for recognizing the position of a moving body. The purpose is to do.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a plurality of optical transmitter units for transmitting specific address information in a position recognition area setting method using a transponding card, and a plurality of optical transmitter units. A switching device connected to the transmitter unit and a light-emitting block having a minimum unit area connected to the switching device are provided, and when switching the switching device, the position of a moving body moving on a plane is recognized. , Specific address information is given according to the usage pattern of the building,
An arbitrary limited recognition area on a plane composed of a plurality of combinations of the light emitting blocks is set.

(Operation) According to the present invention, as described above, a plurality of optical transmitter units for transmitting specific address information, a switching device connected to the optical transmitter unit, and a minimum switching device connected to the switching device. A light emitting block having a unit area, wherein specific address information is given according to a usage pattern of a building when recognizing a position of a moving body moving on a plane by switching the switching device. An arbitrary limited recognition area on a plane composed of a plurality of combinations of blocks is set.

In this way, when detecting the position of a moving body moving on a plane, by arbitrarily combining light-emitting blocks (signposts) that cover one limited minimum unit for position recognition, there is a degree of freedom, Any limited area with one address can be easily set.

Specifically, infrared light emitting blocks that cover an area of a certain limited minimum unit are combined in a plane and used to set an area having an arbitrary size and shape having one address. In this case, since the directional characteristics of the infrared light emitting block are very sharp, it is possible to perform highly accurate position recognition for each block.

(Example) Hereinafter, the Example of this invention is described in detail, referring drawings.

Limited service area for each transmitter unit
A light emitting block that covers the minimum recognition unit of one position is arbitrarily combined to form a recognition area of a position having one address.

FIG. 1 is a diagram showing a configuration example of a position recognition area showing an embodiment of the present invention.

As shown in FIG. 1 (1), a light emitting block 40 that covers one position recognition minimum unit with a limited service range.
To provide. By combining the light emitting blocks 40, two light emitting blocks 40 are horizontally arranged as shown in FIG. 1 (2), or three light emitting blocks 40 are horizontally arranged as shown in FIG. 1 (3). The light emitting blocks 40 may be arranged vertically or horizontally 2 so as to form a square as shown in FIG. 1 (4), or as shown in FIG. 1 (5). Arranged vertically 2 × horizontally 3, or as shown in FIG. 1 (6),
By arranging the light emitting blocks 40 vertically 3 × horizontally 3 so as to form a square, it is possible to form a limited area having various sizes and shapes.

FIG. 2 is a block diagram of a schematic setting system of a position recognition area showing an embodiment of the present invention. In the case of communication with a moving object in a building, the light emitting blocks (1) to (n) are actually placed on the ceiling. A switching device 41 that is arranged and attached and is provided between the optical transmitter unit 42 and the light emitting blocks (1) to (n).
By changing the connection of the light emitting blocks (1) to (n) in a combination according to the usage pattern of the building, the area of a certain specific address is arbitrarily set, and various sizes and shapes are limited. Area can be set.

Here, the optical transmitter unit 42 sends address information to each of the light emitting blocks (1) to (n), and one optical transmitter unit 42 is prepared for one address,
Required number of light-emitting blocks (1) to (n) within the same address
In parallel. This parallel connection is a one-chip microcomputer
Light-emitting block (1) by switching device 41 with built-in MPU
It is possible to switch according to the combination of (n).

FIG. 3 shows a schematic configuration diagram of a position information transmission system by infrared rays showing an embodiment of the present invention.

The inside of the building 50 is set in areas divided into (A) to (I). Here, the area (H) indicates an area where the moving body does not move.

Each area set in this way is connected by the switching device 41 so that one optical transmitter unit 42 corresponds to one address, and the position signal corresponding to the set address is output from the light emitting block. To send. For example, when a person who is a moving body carries the transponding card 51 and is in the area (D), the transponding card 51 having a receiving function receives the position information transmitted from the light emitting block of the area (D). The received position information is transmitted by the transmitter of the transponding card 51. Further, the position information is received by the receiving device provided in the building 50 and sent to the center (not shown) via the transmission path, whereby the position of the moving body can be finally recognized in the center. In FIG. 3, reference numeral 43 is a control device, which is capable of performing overall control of the optical transmitter unit 42.

With such a configuration, it is possible to easily set an area having an arbitrary size and shape in a building, a premises, or the like.

Further, the size and shape of the area once set can be easily changed by switching the switching device 41.

The present invention is not limited to the above-mentioned embodiment, and various modifications can be made based on the spirit of the present invention.
They are not excluded from the scope of the present invention.

(Effects of the Invention) As described in detail above, according to the present invention, the following effects can be achieved.

(1) When recognizing the position of a moving body moving on a plane by switching a switching device connected to a plurality of optical transmitter units that send out specific address information, a specific address according to the usage pattern of a building It is possible to easily set an arbitrary limited recognition area on a plane, which is formed by a plurality of combinations of the light emitting blocks, to which information is given. That is, a limited area having the size and shape of the position recognition area having one address can be arbitrarily and easily set.

(2) When the position recognition area after setting needs to be changed, its size and shape can be easily changed.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration example of a position recognition area showing an embodiment of the present invention, FIG. 2 is a configuration diagram of a position recognition area schematic setting system showing an embodiment of the present invention, and FIG. 3 is a diagram showing the present invention. FIG. 4 is a schematic configuration diagram of a system for transmitting position information by infrared rays showing an embodiment, FIG. 4 is a configuration diagram of a conventional data communication system using a combination of infrared rays and radio waves, FIG. 5 is a configuration diagram of a conventional ID card, and FIG. FIG. 1 is a schematic configuration diagram of an optical space transmission system. 40, (1) to (n) ... light emitting block, 41 ... switching device, 42 ... optical transmitter unit, 43 ... control device, 50 ...
Building, 51 …… Transponding card.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takashi Shimanuki 8-21-1, Ginza, Chuo-ku, Tokyo Takenaka Corporation Tokyo Main Store (72) Inventor Masayuki Tokiwa 8-21, Ginza, Chuo-ku, Tokyo No. Takenaka Corporation Tokyo Main Store (72) Inventor Takashi Moro 8-21-1, Ginza, Chuo-ku, Tokyo Takenaka Corporation Tokyo Main Store (72) Inventor Yosuke Goshin 8 Ginza, Chuo-ku, Tokyo No. 21-1 Takenaka Corporation Tokyo Main Store (56) References JP-A-1-292916 (JP, A)

Claims (1)

(57) [Claims] 1. A plurality of optical transmitter units for transmitting specific address information, (b) a switching device connected to the optical transmitter units, and (c) a minimum connected to the switching device. A light-emitting block having a unit area, and (d) by switching the switching device, when recognizing the position of a moving body moving on a plane, specific address information is given according to the usage pattern of the building. A position recognition area setting method by a transponding card, characterized in that an arbitrary limited recognition area on a plane composed of a plurality of combinations of the light emitting blocks is set.