JPH0638515Y2 - Factory guidance system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a factory guidance system for transmitting factory guidance to a guided person via radio waves.

(Prior Art) Conventionally, JP-A-60-30223 is known as a receiving device useful when transmitting information by radio waves. This receiving device is configured by providing a hat with a built-in receiver with a switch means for opening and closing the power supply of the receiver according to the attachment and detachment of the hat, and the electric wave of the information transmitted from the transmitter is received by the receiver, The information is output as voice from the speaker.

(Problems to be solved by the invention) By the way, there are the following problems when performing factory guidance using such a transmitter / receiver. That is, since the tour route in the factory is generally long, if the radio wave of the voice information is transmitted from one transmitter, the tour can be performed only on a fixed route, and the patrol speed and the guide voice speed of the person being guided It is difficult to match with and there is a drawback that the guidance is insufficient. Further, unless separate transmitters / receivers of different frequencies are prepared, there is a drawback that a plurality of sets of guided persons cannot sequentially visit. Further, even if a high output transmitter is used, the transmitted radio waves are attenuated, so that information transmission does not work well, and noise and the like are easily picked up.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a factory guidance system capable of appropriately performing factory guidance.

(Means for Solving the Problem) In order to achieve the above-mentioned object, the present invention is installed in one area which is partitioned in the factory and has a doorway, and which is installed in any one of all areas of the area. A plurality of weak output type transmitting devices which are arranged so as to be able to receive even at the location, and which transmit radio waves of voice information to the information receiver based on radio waves from the operating device, and are installed at the entrance, and ,
An operating device that emits a radio wave for controlling the transmitter and a receiver that can be attached to an information receiver and that receives a radio wave from the transmitter, converts the radio wave into a voice signal, and outputs the voice signal to the information receiver. A factory guidance system is composed of the equipment.

(Operation) In the factory guidance system of the present invention, when the operating device installed at the entrance of a certain area partitioned by a wall or the like in the factory is operated, the operating device transmits a radio wave for controlling the transmitting device.

Based on this radio wave, the transmission device installed in the area operates, and the transmission device transmits a radio wave of voice information related to area guidance.

The radio wave transmitted from this transmitter is the information receiver (hereinafter,
It is called a “guided person”. ) The signals are received by the receiving devices attached to each of them, and then output as voice through the loudspeaker and transmitted to the guided person.

Further, since the weak output type transmission device is used, interference does not occur even when a plurality of areas are adjacent to each other even when the transmission device installed therein is operating.

(Embodiment) FIG. 1 is a schematic view showing a guide system of the present invention.

The inside of the factory is divided into a plurality of areas A, B, and C through walls for each production line or each facility.

At the entrances a, b, and c of the areas A, B, and C, operating devices 1 that transmit radio waves for controlling a transmitting device, which will be described later, are installed.

In addition, on the four wall surfaces of each area A, B, C, each area A, B, C
A transmitter 10 for transmitting a radio wave of voice information for guiding each production line or facility is installed.

The guided person H who has come to the factory visits each area A, B, C according to the route shown by the solid line arrows, for example, and each guided person H receives the radio wave output from the transmitter 10. The receiving device 20 is attached.

Next, the actuator 1 will be described in detail with reference to FIGS.

As shown in FIG. 2, the operating device 1 includes a transmitter 3 inside a box-shaped main body 2, an operating switch 4 and a stop switch 5 on the front surface, and an opening / closing lid 7 for replacing a battery 6 on the side surface.
Have respectively.

The transmitter 3 has a signal generation circuit 3a as shown in FIG.
And a transmission circuit 3b and an antenna 3c. The switches 4 and 5 are connected in series with the battery 6 on the input side of the signal generating circuit 3a. The signal generating circuit 3a generates predetermined frequency signals which are different from each other around 40 KHz in response to the closing of the switches 4 and 5. Further, the transmission circuit modulates and amplifies the signal transmitted from the signal generation circuit 3a corresponding to the closing of the switches 4 and 5, and transmits the signal through the antenna 3c. The output of the radio wave for controlling the transmitter is set according to the size of the area, but if there are no special obstacles, about 1 w is sufficient.

The frequencies obtained by the signal generating circuit 3b corresponding to the switches 4 and 5 are different for each of the operating devices 1 installed in the areas A, B, and C, that is, the operating devices installed in one area. Even when the operation switch 4 or the stop switch 5 of the device 1 is operated, the transmitter 10 installed in another area does not malfunction.

Next, the transmitter 10 will be described in detail with reference to FIGS. 4 and 5.

As shown in FIG. 4, the transmitter 10 includes a receiver 12 for receiving radio waves transmitted from the actuator 1 inside a box-shaped main body 11.
, A transmitter 13 for transmitting radio waves of voice information, and a power supply circuit 14
And have respectively. Further, the transmitter 10 has a cassette deck 15 on the front side of the main body 11 in which the cassette tape K is housed.
An opening / closing door 16 for loading / unloading the cassette tape K and a button 17 for opening the door are provided on the front surface of the cassette deck 15.

The power supply circuit 14 is connected to an AC power supply through a power cord 14a and supplies a predetermined DC voltage to the receiver 12, transmitter 13 and cassette deck 15.

The receiver 12 has an antenna 12a, as shown in FIG.
It includes a receiving circuit 12b, a driving circuit 12c, and a relay 12d. The reception circuit 12b amplifies and demodulates the radio wave for controlling the transmission device received through the antenna 12a, determines whether the radio wave is for operation or stop, and when it is for operation, a drive signal to the drive circuit 12c. On the other hand, in the case of stopping, the driving signal is stopped. The drive circuit 12c is the receiving circuit 12b
When a drive signal is input from the relay 12d, predetermined power is supplied to the relay 12d to close the normally open relay switch 12e interposed between the power supply circuit 14 and the transmitter 13.

As shown in FIG. 5, the cassette deck 15 is mainly composed of a pair of reels 15a for rotating a reel hub, a motor 15b for driving the reels, and a reproducing head 15c for two tracks. The cassette tape K used in this cassette deck 15 is of the endless loop type and is used in each area A,
Stereo voices for guiding each production line or equipment in B and C are recorded for about 5 minutes on 2 tracks.
In addition, the cassette deck 15 is provided with a detector 15d for detecting the stage where the cassette tape K makes one round.
When the detector 15d operates, even if a drive signal is being sent from the drive circuit 12c, the sending is forcibly stopped, and the power supply to the transmitter 13 and the cassette deck 15 is stopped. Has become.

As shown in FIG. 5, the transmitter 15 comprises a stereo signal generating circuit 15a, a transmitting circuit 15b and an antenna 15c.
The stereo signal generating circuit 15a separates the input signal from the reproducing head 15c into left and right signals. Further, the transmission circuit 13b modulates and amplifies the separated signal, and transmits the separated signal through the antenna 13c. The frequency of the radio wave of this guidance information is the UHF band, preferably around 800 MHz. Although the output of the radio wave depends on the size of the area, the transmission range of the four transmitters 10 intersects each other as shown by the chain double-dashed line in FIG. About 50mW is enough.

Next, the receiving device 20 will be described in detail with reference to FIGS. 6 and 7.

As shown in FIG. 7, the receiver 20 has a receiver 22 and a battery 23 on the upper inside of a helmet 21 with ear pads, speakers 24 on the left and right ear pads, and a power switch 25 on the outer side. Have respectively.

The power switch 25 is interposed between the battery 23 and the receiver 22 as shown in FIG.
It is designed to be able to supply a predetermined power source.

The receiver 22 has an antenna 22a, as shown in FIG.
It includes a receiving circuit 22b and a stereo adapter circuit 22c.
The receiving circuit 22b amplifies and demodulates the guide information radio wave received through the antenna 22a. Also, a stereo adapter circuit
22b separates the demodulated signal into left and right signals, amplifies each signal, and then outputs the amplified signal to each speaker 24.

Next, an example of how to use the guidance system will be described.

First, all the guided persons H are put on the helmet-type receiving device 20 and are aligned in front of the entrance a of the area A.

Next, the factory guide or the headed person H presses the operation switch 4 of the operation device 1 installed at the entrance a. When the operating switch 4 is pressed and closed, the operating device 1 transmits a radio wave for controlling the transmitting device having a predetermined frequency.

Radio waves for controlling this transmitter were installed in area A 4
Each of the receivers 12 of the single transmitters 10 receives it, the relay switch 12e is closed based on the radio wave for controlling the transmitters, and a predetermined power is supplied to the transmitter 13 and the cassette deck 15. As a result, the cassette deck 15 operates, the audio of the cassette tape K is read by the reproducing head 15c, and the radio wave of the audio information relating to the guidance of the area A is transmitted by the transmitter 13.
Sent by.

The radio wave of the guidance voice information is received by each of the receiving devices 20 worn by the guided person H who circulates in the area A. Each receiving device 20 converts the radio wave of the guidance voice information into a stereo voice signal and outputs the left and right signals to the speaker 24.
To send to each. As a result, the guidance of the production line, equipment, etc. arranged in the area A is transmitted to each of the guided persons H in stereo sound through the speaker 24. The transmission output of each transmitter 10 is set weak, but the transmission range intersects as shown by the chain double-dashed line in FIG.
You can receive guidance at any position within Area A.

When the cassette tape K makes one round and the guide for the area A is completed, the cassette deck 15 of the transmitter 10 and the transmitter
13 stops working.

Next, when observing area B and then area C, the operation switches 4 of the operation devices 1 installed at the entrances b and c, respectively.
It suffices to press to start the patrol, and the guidance of the production lines or equipments respectively arranged in the areas B and C can be transmitted to each of the guided persons H by stereo voices as described above.

In this way, according to this guidance system, each area in the factory
A transmitter 10 for transmitting radio waves of voice information related to area guidance is installed for each of A, B, and C, and entrances to the areas A, B, and C are provided.
Since the operating device 1 for remotely controlling the transmitting device 10 is installed in a, b, and c, the operating device 1 is operated as necessary according to the traveling speed of the guided person H, and each area A The guidance of B, C can be transmitted accurately. Also, the operating device 1
By arbitrarily selecting and operating, it is possible to provide guidance suitable for the desired tour route.

Further, by installing a plurality of weak output type transmitters 10 in each area A, B, C, it is possible to avoid interference with radio waves of transmitters in other areas, resulting in poor transmission due to radio wave damage. Even if a plurality of groups are sequentially visited, it is possible to provide appropriate guidance to each guided person.

Furthermore, since the guidance of each area A, B, C can be transmitted to the guided person H by a stereo voice, the guidance can be effectively performed by a voice having a high sense of presence.

It should be noted that a mono voice may be used instead of the stereo voice for the plan to be transmitted to the guided person, and a headphone type receiver may be used in addition to the helmet type receiver. Also,
Although a plurality of weak output type transmitters are installed in one area, the same transmission range as the illustrated example can be obtained even if one transmitter is provided and its antenna is installed along the route. it can.

(Effects of the Invention) As described in detail above, according to the present invention, a transmission device for transmitting radio waves of voice information related to area guidance is installed for each area in the factory, and the transmission is performed at the entrance of each area. Since we have installed an actuator to control the device remotely,
The guidance of each area can be accurately transmitted by operating the actuating device according to the traveling speed of the guided person as necessary. Further, by arbitrarily selecting and operating the actuating device, it is possible to provide guidance in accordance with a desired tour route.

In addition, by installing a weak output type transmission device in each area, it is possible to avoid interference with radio waves from transmission devices in other areas, so there is no transmission failure due to radio interference, and there are multiple sets. Appropriate guidance can be provided to each guided person even when visiting in sequence.

[Brief description of drawings]

1 to 7 show an embodiment of the present invention. FIG. 1 is a schematic view of a guide system, FIG. 2 is a perspective view of an operating device, FIG. 3 is a block diagram of the operating device, and FIG. 4 is a perspective view of the transmitter, FIG. 5 is a block diagram of the transmitter, FIG. 6 is a perspective view of the receiver, and FIG. 7 is a block diagram of the receiver. A, B, C …… Area, a, b, c …… Inlet, 1 …… Actuator, 10
...... Transmitting device, 20 …… Receiving device, H …… Guestee.

Claims (1)

[Scope of utility model registration request] 1. A factory is installed in an area having a perimeter and a doorway, and a plurality of them are arranged so that reception is possible at any place within the entire area of the area. A weak output type transmitting device that transmits a radio wave of audio information to an information receiver based on a radio wave from a device, an operating device that is installed at the entrance and emits a radio wave for controlling the transmitter, and information A factory guide system comprising: a receiver which is attachable to a receiver, receives a radio wave from the transmitter, converts the radio wave into a voice signal, and outputs the voice signal to an information receiver by a loudspeaker.