JPS62186622A - Position display system - Google Patents

Abstract

PURPOSE:To retrieve a mobile body such as a stray child by adding a slave set capable of making two-way communication with a master set via a repeater to the mobile body. CONSTITUTION:Slave sets 1 are identified by an identification code from other slave set. When the master set 1 issues a command to the slave set 1 possessed by a child to be sought, a code (address number) of the said slave set 1 is sent from a communication repeater 11. The said slave set 1 makes a reply to the repeater 1. Thus, the location of the stray child is confirmed that it is near the said repeater. Thus, the mobile body such as the stray child is retrieved.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention provides a location display that allows you to immediately locate a lost child in a place where many children gather, such as an amusement park or a department store. Regarding the system.

(Prior Art) Conventionally, no method has been provided for finding a lost child in an amusement park, department store, or the like.

(Purpose of the Invention) In view of the above, the present invention lends a wireless communication device called a slave device, which is about the size of a badge, to children in a place where many children gather, and searches for the whereabouts of this slave device to prevent lost children. The purpose of the present invention is to provide a position display system for use in searching for, etc.

(Means for solving the problem) The present invention is attached to a moving body whose current position is to be searched,
a plurality of handsets that are mutually distinguishable by codes and capable of two-way communication (S); a master device equipped with an operation section for selecting and operating any handset; and a plurality of handsets installed within the movement area of the mobile object; The communication relay device transmits commands from the base unit to the slave unit, and also receives information sent from the slave unit and sends it to the base unit.

(Function) Each handset is distinguished from other handsets by a code that can be distinguished from other handsets, and when the parent unit commands the handset owned by the child to be searched, the code (address) of the handset is sent from the communication repeater. number) is transmitted, and the handset that receives this sends a response to the communication repeater. Therefore, it is confirmed that the lost child's location is near where the communication repeater is located.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of a handset 1 used in a position display system according to the present invention.

The handset 1 is an ultra-compact device incorporating a two-way wireless communication device, and is, for example, the size of a batch. This handset 1
is configured to communicate automatically by a microcomputer 2, and a transmitter 3 and a receiver 4 are connected. Further, as a power source for operating the microcomputer 2, a small battery 5 such as a lithium battery is used. When selection information for the handset 1 is commanded from the base unit 10 (described later) via the antenna 6, the microcomputer 2 that receives this command emits light on the display 7 or emits a buzzer 1. audio,
The child wearing this handset 1 is notified by vocalization or the like.

FIG. 3 is a block diagram showing the configuration of the base unit 10. As shown in FIG.

The base device 10 has a function of receiving the address number of the handset 1 to be searched inputted from the keyboard 13 and transmitting the address number, and a function of receiving the address number of the handset 1 sent from the handset 1 and displaying the address number of the handset 1 to be searched. 14, and transmission and reception with these handsets 1 is performed by a transceiver 15 connected to the microcomputer 12.

A plurality of communication repeaters 11 serving as antennas are connected to this transmitter/receiver 15 by means of an optical fiber (for example, an optical fiber). Send your address number. In addition to the case where the communication repeater 11 and the transmitter/receiver 15 are connected by wire, for example, they may be connected by optical communication or electromagnetic waves.

FIG. 2 is a diagram showing the installation locations of the communication repeaters 11, which are provided at regular intervals within the area to be searched.

FIG. 4 is a flowchart showing the initial setting operation of address numbers for identifying each handset 1. FIG.

In FIG. 4, in step ■, the keyboard 1 of the base unit 10 is
When an address number is specified for each of the lent handsets 1 through Step 3, the address numbers are sent to the corresponding handset 1 in step 3 and stored in the RAM (not shown) in the handset 1. .

On the other hand, handset 1 that received this address number takes step ■
When it is confirmed that the address number has been stored on the RAM, a registration completion signal is sent to the base unit 10. Then, in step (2), the base unit 10 receives this and registers it in the RAM in the microcomputer 12. Of course, this fourth
Instead of the initial setting operation shown in the figure, the address number may be initialized in advance in a ROM (not shown) in the handset 1.

FIG. 5 is a flowchart showing the procedure for searching for a lost child.

In step (2), the child to be searched for is restored, and in step (2), the address number of the child is input from the keyboard 13. This address number is transmitted over the entire area to be searched via the communication repeater 11 in step (3). The handset 1 having the corresponding address number receives such communication and responds to the communication relay 11 whose communication area is within the area where the child is present. When it is confirmed in step (2) that a response signal has been sent from the communication repeater 11 that received the response to the base unit 10, the display 7 of the slave unit 1 lights up in step 0. Then, a response signal is transmitted from the handset 1 to the communication repeater 11, and when it is confirmed in step 0 which communication repeater 11 received the response signal, in step [phase], the response signal is sent to the communication repeater 11.
The detection area No. 1 is confirmed, and a map showing the detection area is displayed on the display 14 in step 0. For example, the area shown in FIG. 2 is displayed on the display 14, and the communication repeater 11 that receives a response from the handset 1 to be searched lights up, so that the whereabouts of the lost child can be immediately confirmed.

The handset 1 having such a configuration can only be used within a predetermined area between the main unit and L7, such as places where many children gather, such as parks, amusement parks, zoos, beaches, department stores, and supermarkets. The child device 1 is lent before entering such an area, registered in the parent device 10, and retrieved when leaving the area after the sightseeing, etc. You can lend it to Note that the position display system as described above can be used not only for searching for lost children, but also for searching for wandering elderly people, for example. Moreover, if the communication repeater 11 is configured to be movable, it can be used not only at a fixed location but also at any location.

(Effects of the Invention) As described above, according to the present invention, it is possible to immediately search for a lost child or the like.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing the specific configuration of the slave unit in the location display system according to the present invention, Fig. 2 is a schematic diagram showing the installation location of the communication repeater, and Fig. 3 is a block diagram showing the configuration of the base unit. 4 is a flowchart showing the procedure for setting the address of a slave device, and FIG. 5 is a flowchart showing the search procedure. 1...Slave unit 2.12...Microcomputer 11...Communication repeater 13...Keyboard 1@ ] 10th 2S Clause 39 Figure 4 fsS diagram

Claims (1)

[Scope of Claims] 1) A plurality of handsets attached to a moving object whose current position is to be searched, each of which is distinguished by a code and capable of two-way communication, and an operation section for selecting and operating any handset. a base unit, and a plurality of communication repeaters installed within a moving area of the mobile body, which transmit commands from the base unit to the slave unit, receive information sent from the slave unit, and transmit the information to the base unit. A location display system characterized by: