JPH07204237A - User guidance system and user protection system - Google Patents

Abstract

PURPOSE:To provide a user guidance system which obviate the need for a user to carry a device with a built-in electronic circuit and can be expected to perform secure guidance action over a long period of time. CONSTITUTION:An induction coil 3 is installed in the vicinity of a hazardous place B. Until a user E carrying a sensor 2 wit high magnetic permeability comes close to the induction coil 3, the inductance of the induction coil 3 is not varied, but as the user E approaches the induction coil 3, the inductance of the induction coil 3 increases due to the effect of the sensor 3 with high magnetic permeability. A comparator portion 6 detects this inductance increase and then an output device 7 issues instructions to the user E.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a user guidance system and a user protection system.

[0002]

2. Description of the Related Art In order to protect a visually impaired person from a dangerous state, conventionally, a user guidance system as shown in FIG. 5 or 6 is known.

In the user guidance system shown in FIG. 5, a transmitter D for generating a magnetic field C is buried in front of a dangerous area B having a step A, and a user E has a magnetic field detector F.
And carry a cane H with a paging motor G. When the user E approaches the dangerous place B as shown by the arrow J, the magnetic field detector F built in the walking stick H detects the magnetic field C generated by the transmitter D at the front position,
The paging motor G rotates and the cane H vibrates, and the vibration of the cane H causes the user E to recognize that the dangerous place B is approaching. To induce. The cane H has a built-in battery for driving the magnetic field detector F and the paging motor G.

In the user guidance system shown in FIG. 6, a user E carries a cane H'having a transmitter K for generating a magnetic field C. A receiving device M for detecting the magnetic field C is embedded in a position in front of the dangerous area B. When the user E approaches the dangerous place B as shown by the arrow J, the receiving device M
Detects the magnetic field C generated from the cane H'and causes the loudspeaker N to make the user E recognize that the danger place B is approaching by a voice message or the like. A battery for driving the transmitter K is built in the cane H '.

[0005]

In such a conventional user guidance system as described above, it is necessary to deliver expensive canes H and H'in which electronic circuits are incorporated to each user, and the system is reliable. In order to operate, it is necessary to maintain and manage the batteries contained in the canes H and H '. To maintain and manage the batteries, a power switch is provided on the canes H and H'and the power switch is turned on and off. There is a problem that forces the user E to

As a user guidance system for the visually impaired, a conventional example is seen as described above, but a user protection system suitable for a wandering elderly person who needs continuous protection monitoring. Does not exist.

An object of the present invention is to provide a user guidance system which can expect a reliable guidance operation for a long period of time without the user having to carry an expensive device incorporating an electronic circuit.

It is another object of the present invention to provide a user protection system capable of realizing continuous protection and monitoring of wandering elderly people and the like.

[0009]

SUMMARY OF THE INVENTION A user guidance system of the present invention comprises a sensor carried by a user with a material of high magnetic permeability,
An induction coil that generates an AC magnetic field and detects the proximity of the sensor to change the inductance, a comparison unit that detects the occurrence of a change in the inductance of the induction coil, and an induction coil controlled by the comparison unit to guide the user. An output device for giving an instruction is provided.

In addition, the user protection system of the present invention includes a sensing body carried by a user, which is made of a material having a high magnetic permeability, and an induction coil for generating an AC magnetic field and detecting the proximity of the sensing body to change the inductance. And a comparison unit that detects a change in the inductance of the induction coil, and an output device that is controlled by the comparison unit and that switches a device located in the vicinity of the user to a safe state. To do.

[0011]

According to the user guidance system of the present invention, the induction coil is installed near the dangerous area. The inductance of the induction coil does not change until the user carrying the high magnetic permeability sensor approaches the induction coil, but when the user approaches the induction coil, the induction coil is affected by the high magnetic permeability sensor. The inductance of increases. The comparison unit detects the increase change in the inductance, and the output device issues a guidance instruction to the user.

Further, according to the user protection system of the present invention, the induction coil is installed near the dangerous place. The inductance of the induction coil does not change until the user carrying the high magnetic permeability sensor approaches the induction coil, but when the user approaches the induction coil, the induction coil is affected by the high magnetic permeability sensor. The inductance of increases. The comparator detects this increase in the inductance, and the output device switches the device located in the vicinity of the user to a safe state to protect the user.

[0013]

Embodiments of the present invention will be described below with reference to FIGS. 1 and 2 respectively show a user guidance system.

The user guidance system shown in FIG. 1 informs the user E by a voice message when the user E approaches a dangerous place, and the footwear 1 of the user E has a special function as a sensor. Insole 2 is included. A material having a high magnetic permeability is used for a part or the whole of the insole 2. Specifically, it is configured by adhering a finely chopped thin film of an amorphous alloy to a synthetic resin insole body so as not to impair the feeling of use as the insole 2. The magnetic permeability of the amorphous alloy used for the confirmation of the operation shows the magnetic permeability of "50,000" at the measuring frequency of 10 KHz, and the magnetic permeability of the ferrite is "2,600" (the measuring frequency is 10
The magnetic permeability was higher than that of a Fe-based "3,500" (measurement frequency: 10 KHz) among amorphous alloys.

An induction coil 3 is embedded at a position near the dangerous area B. The induction coil 3 is excited by a transmitter 5 via an amplifier 4 to generate an AC magnetic field C. Comparison unit 6
Then, the signal levels of the input and output of the induction coil 3 are compared.
In the standby state where there is no object electromagnetically coupled to the induction coil 3,
The signal levels of the input and output of the induction coil 3 are the same, and the output of the comparison unit 6 maintains the state of “H” level, for example, but an object electromagnetically coupled to the induction coil 3 is generated and When the inductance greatly changes, a level difference occurs between the input and output signal levels of the induction coil 3 and the output of the comparison unit 6 is inverted to, for example, "L" level. Sound generator 7 as an output device controlled by the output of the comparison unit 6
When the output of the comparison unit 6 is inverted to the "L" level, the speaker 8 drives the speaker 8 to generate a prescribed voice message.

The frequency of the AC magnetic field C is, specifically, 50 KHz so that the inductance of the induction coil 3 is greatly changed by the proximity of the insole 2 to the induction coil 3 and the loss is not so large. ~ 120K
It is preferable to select around Hz, and it is 80 KH in the experiment.
The operation was confirmed with an alternating magnetic field C of about z.

With the above construction, the user E who puts the insole 2 made of a material having a high magnetic permeability in the footwear 1
When approaching the dangerous place B, the insole 2 is electromagnetically coupled to the induction coil 3 and the inductance of the induction coil 3 changes significantly, and the comparison unit 6 that detects this changes the sounding device 7 to define it from the speaker 8. The voice message of “1” can be generated to let the user recognize that the user is approaching the dangerous place.
Therefore, the user E only has to carry the insole 2 made of a material having a high magnetic permeability in the footwear 1, and does not have to carry a device having an electronic circuit built therein. You can expect a reliable guidance action.

The user guidance system shown in FIG. 2 automatically notifies the management center when the user E approaches a dangerous place, and the user has the same insole 2 as the embodiment shown in FIG. I put it in Footwear 1 and carry it. The same reference numerals are attached to those having the same functions as those in FIG. When the comparison unit 6 detects the approach of the user, the notification device 9 as an output device whose operation is controlled by the comparison unit 6 notifies the management center 11 of the individual code of the dangerous place B via the line 10. The management center 11 that has received the notification discriminates the dangerous place B from the received individual code, and, for example, dispatches a staff member to the dangerous place B promptly so that the user E can be guided to a safe place. To process. Thus, in the case of the embodiment shown in FIG. 2, the same effect as that of the embodiment of FIG. 1 can be expected.

In the user guidance system shown in FIG. 1 or 2, a voice message is generated when the approach of the user E is detected, or the management center 11 is automatically notified. The lamp embedded in the vehicle or the indicator of the sign installed near the dangerous area B is controlled to a specific display state so that the user E can see the dangerous area B.
Can be recognized. Furthermore, the approach of the user E can be detected, and the user E can be made to recognize the dangerous place B by a plurality of combinations of the above-mentioned voice message, automatic notification to the management center 11 and specific display on the display.

3 and 4 respectively show the user protection system of the present invention. In the user protection system shown in FIG.
When it is detected that the user E approaches the automatic door 12 installed at the entrance to the dangerous area B, the automatic door 12 is not opened. The automatic door 12 is configured such that when the infrared pyroelectric sensor 13 detects the approach of a person, the opening / closing device 14 is driven to automatically open the door 15. However, an input signal to the opening / closing device 14 is transmitted via the AND gate 16. It is controlled as follows.

The user carries the insole 2 similar to the embodiment shown in FIG. 1 in the footwear 1. The same reference numerals are attached to those having the same functions as those in FIG. The AND gate 16, which is an output device that is controlled by the comparison unit 6 and is located in the vicinity of the user E (in this embodiment, the automatic door 12) is switched to a safety ensuring state, the comparison unit 6 makes the comparison unit 6 approach the user E. In the period until the detection of
Detects the approach of a person and instructs the opening / closing device 14 to open the door 15. However, when the comparison unit 6 detects the approach of the user E, even if the infrared pyroelectric sensor 13 detects the approach of a person, the opening / closing device 14 is prohibited from inputting an instruction to open the door 15, and the use is performed. The safety of the user E is ensured by preventing the person E from accidentally entering the dangerous area B. Therefore, the user E only has to carry the insole 2 made of a material having a high magnetic permeability in the footwear 1, and does not have to carry a device having an electronic circuit built therein. You can expect reliable protection.

In the user protection system shown in FIG. 3, the automatic door 12 driven by the opening / closing device 14 is described as an example, but the same applies to the case of a manually operated door, a sliding door or a window. As an output device in this case, a lock device (not shown) that prohibits opening and closing of a door or a sliding door is provided, and when the approach of the user E is detected, the comparison unit 6 operates the locking device to operate the door, the sliding door, or the window. The same effect can be expected by controlling so that it cannot be opened or closed.

In the user protection system shown in FIG. 4, when it is detected that the user E approaches the elevator 17, the cage 19 is automatically operated without operating the call button 18.
Is configured to call. Elevator control unit 20
Is configured to detect the operated call button 18 and stop the cage 19 on the floor where the call is made, but an input signal from the call button 18 to the elevator control unit 20 is transmitted via the OR gate 21. It is controlled as follows.

The user carries the insole 2 similar to that of the embodiment shown in FIG. 1 in the footwear 1. The same reference numerals are attached to those having the same functions as those in FIG. The OR gate 21, which is an output device that is controlled by the comparison unit 6 and is located in the vicinity of the user E (elevator 17 in this embodiment), is switched to a safety ensuring state, the comparison unit 6 detects the approach of the user E. Until then, the call button 18 is operated to instruct the elevator control unit 20 to stop the cage 19 at the relevant floor. But,
When the comparison unit 6 detects the approach of the user E, even if the call button 18 is not operated, the elevator control unit 20 is instructed via the OR gate 21 to stop the cage 19 on the floor, and, for example, In order to prevent the person E from accidentally entering another dangerous area B, the user E is guided to the cage 19 continuing to the safe place to ensure the safety of the user E. Therefore,
The user E only needs to carry the insole 2 made of a material having a high magnetic permeability in the footwear 1, and does not have to carry a device having an electronic circuit incorporated therein, which is reliable for a long period of time. You can expect a protective action.

In each of the above-mentioned embodiments, the sensor is constructed by the insole 2 of the material of high magnetic permeability which is put into the footwear 1 of the user E. However, when the footwear 1 is manufactured, the material of high magnetic permeability is embedded in the footwear itself. The same effect can be expected when the user E uses the footwear provided with the sensor.

In each of the above-mentioned embodiments, the induction coil 3 is embedded in the road in front of the dangerous area B, but the induction coil 3 may be incorporated in the Braille block embedded in the road in front of the dangerous area B. . Further, instead of burying the induction coil 3 on the road or floor, the same effect can be expected by laying a rug containing the induction coil 3 on the road or floor in front of the dangerous place B.

In each of the above-mentioned embodiments, the induction coil 3 is installed on the road or the floor, and the footwear 1 as the sensing body or the insole put in the footwear 1 is used. However, the patch which the user E can carry. The same effect can be expected by making all or part of the batch, armband, etc. with a material of high magnetic permeability and installing the induction coil 3 at a position according to the usage pattern of the sensor used.

In each of the above-described embodiments, the user E is assumed to be a weak person such as a visually impaired person or a wandering elderly person. However, the user E may be a healthy person, and guidance services and protection services are provided. A similar effect can be expected when a user who intends to receive the sensor carries the sensor. Specific examples of the range of use by healthy people include voice messages of exhibits at museums and exhibitions, and guidance by display devices such as CRT displays.

[0029]

As described above, according to the user guiding system of the present invention, the sensor carried by the user is made of a material having a high magnetic permeability, and an AC magnetic field is generated and the proximity of the sensor is detected to detect the inductance. Since an induction coil for changing the induction coil, a comparison unit that detects the occurrence of a change in the inductance of the induction coil, and an output device that is controlled by the comparison unit and gives a guidance instruction to the user are provided, the user can use the induction coil. When it is close to the sensor, the inductance of the induction coil increases due to the influence of the sensor of high magnetic permeability, and the comparison unit can detect this state and give an induction instruction to the user from the output device. The user does not have to carry an expensive device having a circuit incorporated therein, and reliable induction operation can be expected for a long period of time.

Further, according to the user protection system of the present invention, a sensor carried by a user with a material having a high magnetic permeability, and an inductor that generates an AC magnetic field and detects the proximity of the sensor to change the inductance. A coil, a comparison unit that detects the occurrence of a change in the inductance of the induction coil, and an output device that is controlled by the comparison unit and that switches a device located near the user to a safety ensured state are provided.
When the user approaches the induction coil, the inductance of the induction coil increases due to the influence of the sensor having high magnetic permeability, and the comparator detects this state and the output device is located near the user. It is possible to protect the user by switching to the secured state, and it is possible to expect a reliable protection operation for a long time without having to carry an expensive device with an electronic circuit built in to the user as in the past. Is.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an embodiment of a user guidance system of the present invention.

FIG. 2 is a configuration diagram of another embodiment of the user guidance system of the present invention.

FIG. 3 is a configuration diagram of an embodiment of a user protection system of the present invention.

FIG. 4 is a configuration diagram of another embodiment of the user protection system of the present invention.

FIG. 5 is a configuration diagram of a conventional example of a user guidance system.

FIG. 6 is a block diagram of another conventional example of the user guidance system.

[Explanation of symbols]

 E User 1 Footwear 2 Insole [Sensor] 3 Induction coil 5 Transmitter 6 Comparison section 7 Sounding device [Output device]

Claims (10)

[Claims] 1. A sensing body carried by a user with a material having a high magnetic permeability, an induction coil which generates an AC magnetic field and whose inductance is changed by detecting proximity of the sensing body, and a change in inductance of the induction coil. A user guidance system that includes a comparison unit that detects the occurrence of the occurrence of the occurrence of the occurrence of the occurrence of an error and an output device that is controlled by the comparison unit and that gives a guidance instruction to the user. 2. A sensing body carried by a user with a material having a high magnetic permeability, an induction coil which generates an AC magnetic field and whose inductance is changed by detecting proximity of the sensing body, and a change in inductance of the induction coil. A user protection system provided with a comparison unit for detecting the occurrence of the occurrence of the occurrence of an occurrence and an output device which is controlled by the comparison unit and switches an apparatus located in the vicinity of the user to a state of ensuring safety. 3. The user guidance system according to claim 1, wherein the output device is configured to output a voice message to the user. 4. The user guidance system according to claim 1, wherein the output device is configured to control display of a display installed at a specific place. 5. The user guidance system according to claim 1, wherein the output device is configured to report the approach of the user to a specific place. 6. The user protection system according to claim 2, wherein the output device is configured to lock a door at a place approached by the user. 7. The user protection system according to claim 2, wherein the output device is configured to output a call signal to an elevator at a place approached by the user. 8. The user guidance system or user protection system according to claim 1, wherein the sensor is footwear containing a material having a high magnetic permeability. 9. The user guidance system or use according to claim 1, wherein the sensor is an insole of a material having a high magnetic permeability that can be put into the user's footwear. Person protection system. 10. The material of the sensing element is an amorphous alloy having a high magnetic permeability of about “50,000” at a frequency of 10 KHz, and is used in any one of claims 1 to 9. User guidance system or user protection system described.