KR101232687B1 - Voice guiding device - Google Patents

Abstract

The present invention provides a voice induction apparatus for receiving a remote control operation signal, and outputting a built-in voice signal when a remote control operation signal is received, provided with a plurality of predetermined positions, RF module for receiving a wireless signal of the remote control; A microcontroller for processing a wireless signal received through the RF module, a voice output unit for outputting a voice signal according to an operation signal by the microcontroller, and a wireless signal of a remote controller to receive a voice signal and output a voice signal It includes a WIFI module to be connected to another voice induction device to a wireless network, the micro-control unit detects the remote control signal fastest by comparing the reception time of the remote control signal with other voice induction devices connected through the WIFI module If it is, output the built-in voice signal through the voice output unit, and receives If it is slower than other voice induction devices, the output of the voice signal is limited.If the difference in the reception time between the other voice induction devices and the remote control signal is within the range of judgment, the voices of different reception strengths are compared by comparing the reception strength of the wireless signal. When the induction device is higher than the built-in voice signal is output, when the reception strength is weaker than other voice induction devices, the output of the voice signal is limited. This prevents duplication of voice outputs of the plurality of voice induction apparatuses, and has an advantage of being easily checked and managed through a wireless network.

Description

Voice guiding device}

The present invention relates to a voice induction device for guiding a location using voice.

In general, the voice induction device is installed in a specific building or structure to guide the location by voice, mainly for the visually impaired and is provided in a number of locations, such as schools, subway stations, malls, government offices and dangerous areas.

For example, the subway station is provided with a speech induction device for the disabled at the ticket gates, restrooms, ticket offices, etc., wherein the speech induction device is configured to receive a remote control signal possessed by the visually impaired to provide voice guidance.

That is, the voice induction device is located within a radius of the remote control signal possessed by a disabled person, and when the wireless signal is transmitted from the voice induction device, the voice induction signal set by the corresponding voice induction device is output, and the disabled recognizes the current position. Allow it to move.

However, the above conventional technology has the following problems.

In the prior art, the voice induction apparatus included in the radius of the remote control radio signal is transmitted all operate irrespective of the position of the handicapped, so that the handicapped cannot recognize the guide signal. That is, the voice induction signal is output from a plurality of voice induction devices at the same time, it is difficult to hear the voice induction signal.

Meanwhile, in order to prevent this, a technology for outputting a voice with a predetermined time difference between the voice induction devices receiving the remote control signal has been developed, but this may also occur when the voice overlaps, and the user may have a large number of short time periods. Due to exposure to the voice information of the, there is a problem that it is not easy to identify the desired location information.

In addition, the voice induction apparatus according to the prior art is difficult to determine whether there is a failure unless it is periodically managed, there is a problem that a dangerous situation may occur when a failure occurs.

For example, in a subway station, a plurality of voice induction devices are provided with a line in between, and only a voice induction device on the opposite side of a line where a person with a disability is located may operate, and all of the remaining voice induction devices may malfunction.

On the other hand, in the above situation, if the disabled to operate the remote control to receive the voice guidance, the disabled person on the other side of the track is believed to move only the voice signal of the operating voice induction device, there is a problem that can fall to the track.

In addition, the faulty voice induction apparatus may be left in a fault state unless the administrator directly confirms it, which causes a problem that a person with a disability continues to be exposed to a dangerous situation.

An object of the present invention is to provide a voice induction apparatus that can communicate with each other, so that a plurality of voice induction apparatus can be prevented from simultaneously outputting a voice signal.

Another object of the present invention is to provide a voice induction device capable of outputting a predetermined voice signal only in a voice induction device that has received a remote controller signal fastest in a plurality of voice induction devices connected to a network.

It is still another object of the present invention to provide a voice induction device that enables the upgrade of data and functions as well as checking and coping with a fault condition through remote monitoring.

The present invention provides a voice induction apparatus for receiving a remote control operation signal, and outputting a built-in voice signal when a remote control operation signal is received. A microcontroller unit for processing a wireless signal received through the module, a voice output unit for outputting a voice signal according to an operation signal by the microcontrol unit, and another voice for receiving a wireless signal from a remote controller and outputting a voice signal It includes a WIFI module to be connected to the induction device and a wireless network, the microcontrol unit compares the reception time of the remote control signal with other voice induction devices connected through the WIFI module when the remote control signal is detected the fastest The built-in voice signal is output through the voice output unit, and the reception time is exhausted. When it is slower than the voice induction device, the output of the voice signal is restricted. When the difference in the reception time between the other voice induction devices and the remote control signal is within the range of judgment, the voice induction device having different reception strength is compared by comparing the reception strength of the wireless signal. When it is higher than the built-in voice signal output, if the reception strength is weaker than other voice induction apparatus characterized in that the output of the voice signal is limited.

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The determination range of the reception time difference of the remote control signal is characterized in that less than 1 millisecond.

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The microcontrol unit includes an WIFI signal analysis and connection unit for analyzing and connecting a WIFI signal, an RF distance determination control unit for adjusting a reception distance of a remote control signal, and an update through a server connected through the WIFI module. Remote update function is characterized in that it is included.

The voice output unit includes voice output information, a voice module for processing a control signal of the microcontrol unit, a speaker for outputting the voice output information to the outside, and a voice output embedded in the voice module. The information is connected to the management server through a wireless network formed through the WIFI module, characterized in that the update, such as change and addition deletion of the voice output information is possible.

In the present invention, a plurality of voice induction devices receiving the remote control signal are connected to each other through a wireless network to compare the reception time of the remote control signal. In addition, the built-in voice signal is output only in the voice induction device having the fastest reception of the remote control signal among the reception times of the remote control signals as compared with the above, and the voice output is limited in the remaining voice induction devices.

Therefore, the voice output is not duplicated in the plurality of voice induction devices, so that the user can clearly recognize the location information and move through the voice output.

In addition, when the difference in the reception time of the remote control signal is within the range of determination, by comparing the reception strength of the radio signal so that the audio signal can only be output from the voice induction device with the strongest signal strength, it is possible to effectively prevent duplicate output do.

In addition, the voice induction apparatus according to the present invention has the advantage that the remote management is connected to the server via a wireless network.

That is, it is possible to easily check and take action of the voice induction device that is normally operating on the network and the voice induction device that is in error even without checking the voice induction device directly. Can be.

In addition, since it is possible to upgrade the firmware of the voice induction apparatus through a network, maintenance and management has an advantage that can be made more easily.

1 is a perspective view showing an embodiment of a voice induction apparatus according to the present invention.
Figure 2 shows a schematic internal configuration of the voice induction apparatus according to the present invention.
3 is a view showing a control configuration of the voice induction apparatus according to the present invention.
4 is a view showing a detailed configuration of a control unit of the voice induction apparatus according to the present invention.
5 is a view showing a construction of a wireless network using a voice induction apparatus and a wireless AP according to the present invention.
6 is a view illustrating a process in which a control signal is processed in the wireless network shown in FIG.
7 is a view showing the construction of a wireless network by the server function of the voice induction apparatus according to the present invention.
8 and 9 are diagrams for explaining the function of the prohibition of redundant broadcasting of the voice induction apparatus according to the present invention.
10 is a flow chart showing a control process according to the redundant broadcast prohibition function of the voice induction apparatus according to the present invention.
11 is a view schematically showing the configuration of a voice guidance system using a voice induction apparatus according to the present invention.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. However, the spirit of the present invention is not limited to the embodiments presented, and those skilled in the art who understand the spirit of the present invention can easily suggest other embodiments within the scope of the same idea.

1 is a perspective view showing an embodiment of a voice induction apparatus according to the present invention, Figure 2 is a view showing a schematic internal configuration of the voice induction apparatus according to the present invention, Figure 3 is shown in the present invention The figure showing the control configuration of the voice induction apparatus according to the drawing is shown.

Referring to these drawings, first, in the voice induction apparatus according to the present invention, the base 100 and the cover 200 are combined to form a majority of appearance.

In addition, a power supply unit 800 for supplying power, an RF module 700 for receiving a remote control signal, and the remote control signal are received in the internal space formed by combining the base 100 and the cover 200. A voice output unit 300 is provided to allow location guidance to be made through the voice output.

The RF module 700 includes an RF active antenna 720 and receives an RF signal of a remote controller and transmits the received information to the microcontrol unit (MCU) 500.

The voice output unit 300 includes a voice module 310 having a built-in voice output information and controlling the voice signal to be output when the reception information of the remote control signal is received from the micro control unit 500. A speaker 340 for outputting and an amplifier 320 for amplifying the voice output through the speaker 340 is included.

The voice module 310 includes a memory 312 in which the voice information to be output is embedded, and the voice information embedded in the memory 312 may be remotely updated through a network. This will be described in more detail below.

When the remote control signal is received from the RF module 700 according to the above configuration, the voice output information embedded in the memory 312 may be output through the speaker 340 to provide a location guide through the voice output. .

On the other hand, the voice induction apparatus according to the present invention is connected through a wireless network between the voice induction apparatus in order to prevent a case in which the audio output is duplicated when a plurality of voice induction apparatus received a remote control signal at a similar time, A WIFI module 600 and a control configuration are further provided for selectively limiting the voice output by using.

In detail, the internal space is provided with a WIFI module 600 for transmitting and receiving wireless signals to form a local area network.

The WIFI module 600 includes a WIFI antenna 620 exposed to the outside of the case 20, a communication port 630 for transmitting and receiving data, and a WIFI chip 650 for processing data. The control unit 500 is connected via a universal asynchronous receiver / transmitter (UART).

In the present invention, since the general purpose asynchronous receiver for connecting the test equipment 10 may be further provided, for the convenience of the description below, the first UART 920, the asynchronous transceiver connected to the WIFI module 600, The asynchronous transceiver connected to the test equipment 10 is referred to as a second UART (940).

The WIFI module 600 may receive operating power from an internal power supply 840 constituting the power supply 800 and an external power supply 820 directly connected to commercial power.

In detail, the power supply unit 800 includes an external power supply unit 840 for supplying charged power when the external power supply unit 820 to which commercial power is connected and the external power supply unit 820 are not connected smoothly. The internal power supply unit 840 includes a charging circuit 844 and a battery 842.

In addition, the voice induction apparatus according to the present invention further includes a status notification unit 400 for visually checking the connection state of the wireless network by the WIFI module 600.

The state notification unit 400 may be composed of a plurality of LEDs 440 or buzzer 420, etc., by checking the connection state of the network through the input and output control unit 410 connected to the micro control unit 500 The lighting color of the LED 440 may be changed or the operation state of the voice induction device may be notified by generating an alarm sound through the buzzer 420.

In addition, the status notification unit 400 is also connected to the power supply unit 800 when the external power supply is not smooth or when the charge of the battery 842 is required, the LED 440 Alternatively, the buzzer 420 may be notified.

In addition, the voice induction apparatus according to the present invention further includes a dip switch 460.

The dip switch 460 is a voice induction device capable of performing a master function and a voice in a client function when a wireless AP is not provided among a plurality of voice induction devices forming a wireless network when the first voice induction device is installed. Induction device can be set separately.

That is, in a situation where a wireless AP is not provided, a voice induction device set as a master by the dip switch 460 among a plurality of voice induction devices checks a security key value and a Mac address and wirelessly through a defined protocol. Allow network to be formed.

On the other hand, the micro-control unit 500 is provided with a plurality of functional units for controlling the above configuration to prevent the overlapping of the voice output and other voice induction device when receiving a remote control signal.

4 is a view showing a detailed configuration of a control unit of the voice induction apparatus according to the present invention.

Referring to the drawings, the microcontrol unit 500 includes a voice output driver 520, a power controller 530, a WIFI signal analysis and connection function 540, a time synchronization function 550, a distance analysis and adjustment function. The unit 560, a stop time adjustment function 570, a start time adjustment function 580, a remote update function 590 and the integrated control unit 510 for controlling the integrated control unit.

In detail, when the voice output driver 520 detects the reception of the remote controller signal from the RF module 700, the voice output driver 520 receives the analysis information and controls the voice output unit 300.

The power controller 530 controls the power supply 800 to control charging and power supply of the battery 842, and the time synchronization function 550 is connected to a wireless network. Allow the current time of the voice induction device to be synchronized.

The WIFI signal analysis and connection function unit 540 checks an access point for wireless network connection so that the connection with the wireless network can be made, and the distance analysis and adjustment function unit 570 is a remote control signal reception distance and RF signal It is a configuration to adjust the working distance in accordance with the reception.

That is, the distance analysis and adjustment function unit 560 limits the reception distance of the remote control signal, and analyzes the reception time and the electric field strength (RSSI) of the RF signal to determine whether the voice is output.

In addition, the stop time adjustment function unit 570 is configured to control the time at which the voice output is stopped, and the start time adjustment function unit 580 is configured to control the time at which the voice output is made after reception of the remote control signal. The remote update function unit 590 is configured to update firmware and voice information by accessing a server through a wireless network.

On the other hand, the integrated control unit 510 combines the control information of the configuration as described above to control so that the voice output is not duplicated in the plurality of voice induction apparatus connected on the wireless network, this process will be described in more detail below Let's do it.

FIG. 5 is a view illustrating a construction of a wireless network using a voice induction device and a wireless AP according to the present invention, and FIG. 6 is a view illustrating a process of processing a control signal in the wireless network shown in FIG. 5. Is shown.

Referring to these drawings, a plurality of voice guidance devices are connected to the wireless AP and the WIFI module 600 with the MAC address and serial number given at the beginning of installation to form a wireless network.

When the wireless network is formed as described above, each voice induction apparatus can share information including the reception time of the received remote control signal and the field strength (RSSI) of the wireless signal.

That is, as shown in FIG. 5, the voice induction device D has a remote control signal reception time of “d” sec, and the voice induction devices E, F, and G each have a remote control of “e, f, g” sec. Since the signal reception time, the voice information embedded in the memory 312 is output only in the voice induction device (D) of "d" sec, which is the earliest time of the remote control signal reception time d, e, f, g, The voice output is limited in the remaining voice induction apparatus (E, F, G).

In addition, when the network is formed through the wireless AP as described above, it can be connected to an external server using the wireless AP, thereby enabling remote management. Description thereof will be described in detail below.

On the other hand, the voice induction apparatus according to the present invention may form a wireless network so that one voice induction apparatus performs a function of a master, that is, a server, and the other voice induction apparatuses operate as clients.

FIG. 7 is a diagram showing the construction of a wireless network by the server function of the voice induction apparatus according to the present invention.

Referring to the drawings, unlike the above-described embodiment, when a wireless AP is not provided separately, one of a plurality of voice induction apparatuses A, B, and C may be selected to perform a server function.

That is, when the voice induction apparatus (A, B, C) is initially installed, one is set to operate as a server in advance, and in the voice induction apparatus (Master) that functions as a server, another voice induction is performed using an ad hoc. A wireless network is formed with a client.

To this end, the voice induction device (Master) used as a server forms a wireless AP by setting a network name and a security type security key, and another voice induction device (Client) is connected to the wireless AP formed as described above. By connecting to each of the assigned MAC address value is connected to share the received information of the remote control signal and the data sharing to limit the voice output can be made.

On the other hand, in this case, the data sharing between the voice induction apparatus (A, B, C) is possible, but the remote management function is not performed because it is not connected to the external server.

Hereinafter, a description will be given of a function of preventing evangelistic output while a plurality of voice induction devices are connected to a wireless network regardless of connection of an external server.

8 and 9 are diagrams for explaining the redundant broadcasting prohibition function of the voice induction apparatus according to the present invention, Figure 10 is a flow chart showing a control process according to the redundant broadcasting prohibition function of the voice induction apparatus according to the present invention. Is shown.

Referring to these drawings, when the user presses the remote control for voice guidance to confirm the current position in the subway station or school facilities, and to determine the direction in which they need to move, the inside of the transmission radius of the radio signal of the remote control All the voice guided devices receive remote control signals.

However, since all of the voice induction apparatus for receiving the remote control signal is provided at a designated position, the time for receiving the remote control signal is different in each voice induction apparatus.

That is, as shown in Fig. 8, the voice induction apparatus (A) is located at a distance of 5M from the transmitting position of the remote control signal, the voice induction apparatus (B) is located at a distance of 7M, the voice induction apparatus (C) at 15M, respectively Voice guided devices of all have a slightly different remote control signal reception time.

On the other hand, the voice induction apparatus (A, B, C) receiving the remote control signal is the current time is synchronized by the time synchronization function unit 550 in a state connected via a wireless network network, each voice induction apparatus (A In B, C), reception times of different remote control signals are detected according to distance, and the received information of the detected remote control signals can be shared through a wireless network.

Therefore, in the present invention, when receiving a remote control signal connected to a wireless network, the voice induction device (A, B, C) compares the reception time of the remote control signal, and the received time of the compared remote control signal is the fastest voice induction Only the device A is controlled to output an embedded voice announcement.

In addition, other voice induction devices B and C that receive the same remote control signal are restricted from outputting voice announcements, so that the voice output may be prevented from being duplicated even when a plurality of voice induction devices receive the same remote control signal. do.

The voice induction apparatus (A) outputs the voice announcement for a predetermined time by the start time adjustment function 580 and the stop time adjustment function 570, and then waits for reception of a remote control signal, and the remaining voice induction. The devices B and C also wait to receive the next remote control signal.

In addition, even when the wireless AP is provided, the remote control signal reception time is compared while the voice induction devices D, E, F, and G are connected to each other through the wireless AP, and the voice received the remote control signal at the earliest time. Induction device (D) is to output the built-in voice announcement for a set time.

On the other hand, as shown in Figure 9, the remote control signal is transmitted in an area where a plurality of voice induction apparatus (A, A ', B, C, C') is installed, each voice induction apparatus (A, A ', B, C) , C ') when the remote control signal is received, when the distance is similar or the reception time of the remote control signal by the obstacle (I) is similar and within the determination range of the difference in the reception time, the electric field strength of the signal transmitted from the remote control The voice output target is determined based on the RSSI.

That is, since the remote control signal is proportional to the distance of the receiving point, when the difference in the reception time is small, it is difficult to judge, and the voice is output from the voice induction device A having a high electric field strength, and the remaining voice induction devices A ', B, and C are used. , C '), voice output is limited.

On the other hand, as described above, the difference in the remote control signal reception time which is a criterion for comparing the electric field strength is set to less than 1 millisecond.

In other words, the remote control signal is very fast, and the separation distance between the voice induction apparatus is about tens to hundreds of meters, so when the range of judgment is more than 1 millisecond, almost all situations can be judged as field strength (RSSI), so it is 1 millisecond. Less than a reference time is set.

On the other hand, the voice induction apparatus connected to the wireless network as described above may be connected to a separate management server through a wireless network to be remotely managed.

11 is a view schematically showing the configuration of a voice guidance system using a voice induction apparatus according to the present invention.

Referring to the drawings, a field, that is, a place or a building equipped with a plurality of voice induction devices according to the present invention, a wireless network is constructed through the WIFI module 600, and a plurality of voice induction devices are installed in the wireless network. A server containing location and management information is connected.

That is, the server may be connected to communicate with a plurality of voice induction devices through a wireless network, such as a database server storing management information, as well as a location management server, a MAP management server, and an update management server for managing installation locations. May be included.

That is, the location management server stores location information in which a plurality of voice induction devices are installed, and the stored data may be recorded in coordinates in the installation area.

The database server may store information such as a serial number, a management history, and an operation history of a voice induction device, and the MAP management server shows coordinates in an installation area of the location management server in actual map data in the field management. To make it easier.

In addition, in the update management server, an administrator may access a terminal, such as a personal PC or a smart phone, to manage a voice induction device connected through the update management server.

In detail, the administrator who accesses the update management server can check the operation state of the voice induction apparatus in the update management server. That is, it is possible to check whether or not a plurality of voice induction devices are installed in a designated place and operate normally through the update management server, so that appropriate measures can be taken when a voice induction device having a failure or error condition is identified. .

In addition, the administrator connected to the update management server can update the voice announcements embedded in the voice induction device through the update management server, it is also possible to manage firmware updates remotely.

To this end, the microcontrol unit 500 is provided with a boot area for driving a system and a data area for storing an application for performing a function of a device.

That is, all of the firmware for the operation of the device is stored in the data area. When the administrator accesses a remote update management server to perform a remote update, the firmware application is jumped to the boot area and data necessary for the upgrade is upgraded. The firmware is upgraded after being received from the upgrade management server and stored in the data area.

On the other hand, the voice induction apparatus according to the present invention through the upgrade of the firmware as described above to find the equipment directly installed, connect the communication line and then do not upgrade the firmware, the administrator can easily manage using a personal PC or smart phone, etc. Can be.

In addition, it is possible to remotely change the voice data as well as the firmware upgrade as described above, it is possible to more easily manage the voice induction apparatus.

100 ..... Bass 200 ..... Cover
300 ..... Voice output 310 ..... Voice module
320 ..... Amplifier 340 ..... Speaker
400 ..... status notification part 410 ..... input / output control part
420 ..... Buzzer 440 ..... LED
460 ..... Dip Switch 500 ..... Micro Control Unit
510 ..... Integrated controller 520 ..... Voice output driver
530 ..... Power control part 540 ..... WIFI signal analysis and connection function
550 ..... Time synchronization function 560 ..... Distance analysis and control function
570 ..... Stop time control function 580 ..... Start time control function
590 ..... 600 ..... WIFI module with remote update function
620 ..... WIFI Antenna 630 ..... Communication Port
650 ..... WIFI Chip 700 ..... RF Module
720 ..... RF Active Antenna 800 ..... Power Supply
820 ..... External power supply 840 ..... Internal power supply
842 ..... Battery 844 ..... Charging circuit
920 ..... 1st UART 940 ..... 2nd UART

Claims (6)

delete In the voice induction apparatus is provided for each of a plurality of positions to receive a remote control operation signal, and outputs a built-in voice signal when a remote control operation signal is received,
RF module for receiving a radio signal of the remote control;
A micro control unit for processing a radio signal received through the RF module;
A voice output unit for outputting a voice signal according to the operation signal by the micro control unit;
It includes a WIFI module to be connected to a wireless network with another voice induction device that receives a wireless signal of the remote control and outputs a voice signal,
In the micro control unit,
When the remote control signal is detected the fastest by comparing the reception time of the remote control signal with other voice induction devices connected through the WIFI module, the built-in voice signal is output through the voice output unit, and the reception time is higher than that of other voice induction devices. If it is slow, limit the output of the audio signal.
If the difference in the reception time between the other voice induction devices and the remote control signal is within the range of judgment, the received signal strength is compared with other voice induction devices, and the built-in voice signal is outputted. The voice induction device to limit the output of the voice signal when weaker than the induction device. The method of claim 2,
The range of determination of the difference in the reception time of the remote control signal is less than 1 millisecond.
delete The method of claim 2, wherein the microcontrol unit,
WIFI signal analysis and connection for analyzing and connecting the WIFI signal,
RF distance judgment adjustment function for adjusting the receiving distance of the remote control signal and
Voice guidance device comprising a remote update function to be updated through a server connected via the WIFI module.
The method of claim 2, wherein the audio output unit,
Voice output information is embedded, and a voice module for processing the control signal of the microcontrol unit,
Includes a speaker for outputting the voice output information to the outside,
Voice output information embedded in the voice module,
A voice induction device that is connected to a management server through a wireless network network formed through the WIFI module and is capable of updating, such as changing and adding or deleting voice output information.

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