KR20150059229A - Workplace Black-box Apparatus - Google Patents

Abstract

The present invention provides a workplace black-box apparatus, so vocal information in a certain section can be automatically stored in a server when a worker with a slave terminal has an accident at an industrial site and be analyzed through the user interface. According to the present invention, accident causes can be effectively understood. In addition, the present invention provides a method for using the vocal information together with image information, thereby accurately determining the accident causes or circumstances.

Description

{Workplace Black-box Apparatus}

The present invention relates to a black box system, and more particularly, to a black box system capable of recording voice information of a worker for a certain period of time before and after a dangerous event when an event such as an accident occurs at a worksite, To a black box system device for a business site.

Various measures are being sought to prevent industrial accidents at various industrial sites and to establish a safety management system. However, it is difficult to prevent unexpected accidents despite various safety measures. The causes of such accidents vary from problems of on-site supervision and management to mistakes of workers themselves.

If an industrial accident occurs, it is necessary to cope with it promptly. It is also important to understand the cause of the accident or the occurrence of the accident. This is because it can be used as data for preparing safety measures to prevent the occurrence of the same or similar accidents.

At present, there are measures to utilize safety personnel or surveillance personnel as a means to confirm the occurrence of an accident in the industrial field, and to use cameras such as CCTV for workplace.

Among them, the use of safety personnel or the monitoring staff is not only the task of recognizing the risk and correcting the working attitude through the equipment operation training and the accident prevention education to the workers, It helps to identify the cause of the accident. However, in this case, a lot of manpower is needed to manage a wide range of workplaces. Therefore, it was not possible to accurately recognize the occurrence of an accident when the staffing was made incorrectly.

On the other hand, when using a camera, there is an advantage that an accident occurrence can be accurately recognized through stored image information. However, most cameras installed in an industrial field typically only capture / store image information, and do not perform storage operations for audio information. Therefore, since it is based on only image information when an accident occurs, it is practically limited to accurately grasp the situation at the time of an accident. Also, if the camera pixels are low, even the image information could not be used as data that can accurately identify the scene situation.

Of course, it is also possible to provide a terminal equipped with a camera for each operator. However, it is actually difficult to pay handsets to all workers in terms of cost. Even if a terminal is paid in this way, it is difficult to expect a high effect because a blind spot always exists depending on the work direction of an operator.

Korean Patent No. 0133158 (Dec. 17, 1997) Korean Patent No. 0779727 (November 28, 2007)

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a black box system device for a workplace, which can identify the cause of an accident through voice information recorded for a predetermined time before and after an accident at an industrial site.

Another object of the present invention is to provide a black box system device for a business that enables the use of video information of a camera together with voice information to more accurately determine the cause of an accident or the circumstance.

According to an aspect of the present invention, there is provided a slave terminal for collecting voice information; At least one host terminal receiving voice information from some or all of the slave terminals; A server for storing the voice information transmitted through the host terminal for each host terminal and for each time slot; And a user interface for analyzing the voice information provided from the server.

The slave terminal includes: a sensor for sensing a reference value according to a work environment; A socket on which the sensor is mounted; A terminal control unit for controlling voice information for a predetermined period of time before and after the sensing point of time of the sensor; A storage unit for storing the voice information; And a mode switch for enabling the slave terminal to be used as a radio.

Wherein the storage unit comprises: a first storage unit for storing voice information in a normal state; And a second storage unit for storing only voice information for a predetermined time according to the detection result of the sensor.

The terminal control unit may mark a part of the voice information stored in the first storage unit and transmit the marking information to the server when the sensor outputs the detection signal.

The terminal control unit deletes the voice information stored in the storage unit only in a stored order when the slave terminal is being charged.

The slave terminal may further include a switch for allowing a corresponding sensor to operate according to a work environment when at least two sensors are installed.

Wherein the server comprises: a processing unit for dividing the voice information by the slave terminal or the host terminal into a DB; And a synchronization unit for synchronizing the audio information and the video information, and the video information is acquired from a camera installed in a work site.

As described above, according to the present invention, since the worker carries a portable terminal device capable of recording a voice in an industrial field, it is possible to record voice information of a worker for a predetermined period of time according to the detection result of the sensor Therefore, it is possible to accurately determine the cause of the accident and the circumstance.

Further, since the present invention can utilize the voice information and the video information selectively obtained by the camera, the cause of the accident can be grasped more accurately than the voice information.

Also, since the operator carries the terminal device, even if the direction of the microphone for collecting voice information changes, the voice intensity to be collected can be changed, and the voice information of the operator can be sufficiently obtained.

In addition, even if only voice information is used, it is possible to grasp the direct cause of the accident, and since only a small amount of data per unit time is stored compared with the image information, a system capable of judging an accident situation with low cost can be expected .

1 is a block diagram of a black box system for a workplace according to a preferred embodiment of the present invention;
2 is a block diagram of the slave terminal shown in FIG.
3 is a block diagram of the host terminal shown in FIG.
FIG. 4 is a diagram showing the server configuration shown in FIG. 1
5 is an exemplary drawing of the user interface shown in Fig. 1
FIG. 6 is a flowchart illustrating an operational state of a black box system for a workplace according to a preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a black box system for a business according to the present invention will be described in detail with reference to the accompanying drawings.

The present invention aims at collecting and analyzing voice information before and after an accident when an accident occurs in an industrial site with high accident risk, so that the cause of an accident can be accurately grasped. In addition to the collected voice information, the present invention also allows a video camera installed in an industrial field, for example, CCTV, to match video information with audio information to utilize the audio information to more effectively determine the direct cause of an accident. .

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall block diagram of a black box system for a workplace according to a preferred embodiment of the present invention; FIG.

1, the workplace black box system 100 includes a slave terminal 110 as a portable terminal device that can be carried by an operator, and a slave terminal 110 as a portable terminal device that receives and transmits voice information transmitted from a plurality of slave terminals 110 A server 140 for receiving voice information transmitted from the host terminal 130 and a user interface 150 for accessing the server 140 and analyzing voice information.

The slave terminal 100 can be classified according to the area of the workplace or tasks. Therefore, the slave terminal 100 carried by a worker in a certain area or the same job communicates with one host terminal 130, and the other slave terminals that are in charge of another domain or another task communicate with other host terminal 130 . The system is configured such that these host terminals 130 communicate with one server 140.

Hereinafter, each configuration of the business black box system 100 will be described in more detail.

First, the slave terminal 110 refers to FIG.

The slave terminal 110 plays a role of collecting, for example, a machine sound or the like as voice information of a worker himself / herself or other workers in the vicinity of the production site, and surrounding voice information. Here, the voice information may include not only voice information of a predetermined reference value but also a moaning sound having a frequency lower than a reference value, 'Damage!' And so on. Therefore, it is preferable that the slave terminal 110 be mounted in a place where voice or machine sound can be effectively input. For example, the body of the worker can be mounted on shoulders or hats, and should be portable.

A microphone 112, which is an information collecting unit, is configured to acquire voice information and the like. The microphone 112 is mounted on at least one of the housings forming the slave terminal 110 so as to efficiently receive voice information or a machine sound. Of course, the microphone 112 may be provided to separate microphones for collecting only the voice information of the operator, such as a microphone and a machine sound.

A storage unit 114 for storing voice information collected by the microphone 112 is configured. The storage unit 114 may be divided into a first storage unit 114a and a second storage unit 114b. The first storage unit 114a continuously stores voice information of a worker in a normal work environment when an accident has not occurred, and the second storage unit 114b stores voice information before and after the occurrence of an accident It plays a role. However, the second storage unit 114b is not necessarily configured. That is, if an accident occurs while voice information is stored in the first storage unit 114a, the corresponding voice information period can be displayed and confirmed during a predefined time. However, the second storage unit 114b will be described as an example.

The voice information stored in the storage unit 114 is compressed and stored for a predetermined interval. At the same time, the voice information that has been stored is transmitted to the host terminal 130 in real time. Also, some or all of the stored voice information is automatically deleted according to the state of the slave terminal 110. For example, when the slave terminal 110 is mounted on a cradle or the like or is being charged using the USB port, it can be determined that the task is being executed and is deleted.

A sensor 116 is provided to sense when the voice information should be stored in the second storage unit 114b. The sensor 116 outputs a detection signal for storing or displaying audio information before or after the reference value is sensed. If the value is above the reference value, it is the time of the accident occurrence. Or when sound information capable of judging the occurrence of an accident is sensed. For example, if a sound such as 'Ugh', 'Billion', or 'Damage!' That notifies a dangerous situation occurs, it is recognized that an accident has occurred, To store or display voice information. Of course, in order to detect the sound information, a corresponding sound pattern must be stored.

Here, the sensor 116 may be provided with different types of sensors such as a sound detection sensor, a heat sensing sensor, a lightness sensor, a humidity sensor, and the like depending on the work environment. Therefore, the reference value is provided differently for each sensor. It is also desirable to be able to use only the sensor according to a specific working environment. Therefore, it is preferable that a socket 118 capable of detachably attaching the sensor 116 is formed in the slave terminal 110. That is, a sound sensor, a heat sensor, an illuminance sensor and a humidity sensor may be connected to the socket 118 depending on the working environment. Of course, it is also possible to mount all of the above-described sensors on the slave terminal 110, and to use a specific sensor in a switch-on (not shown) depending on the work environment.

The slave terminal 110 can use a built-in battery or a rechargeable battery as a power source for portability. In the case of the built-in battery, the charging terminal 120 should be provided so that it can be charged through the charging cradle device or the USB port. In the case of using the charging battery, the battery seating part 121 is provided.

And a wireless communication unit 122 for wirelessly transmitting voice information to the host terminal 130 is configured. The wireless communication unit 122 may be a wireless LAN (WLAN), a ZigBee, a Bluetooth, a CDMA, a Global System for Mobile Communication (GSM), a long term evolution (LTE)

Meanwhile, the slave terminal 110 provides a radio mode in which voice information is exchanged with another slave terminal. In the wireless mode, the slave terminals operate in half duplex mode. In other words, the wireless mode is to utilize the case where the communication between the workers is required through the slave terminals. And further includes the configuration of the mode switch 124 and the speaker 126 for this purpose.

The microphone 112, the storage unit 114, the sensor 116, the wireless communication unit 122, and the terminal control unit 128 for controlling the wireless mode function are configured as described above. The terminal control unit 128 stores only the voice information of a specific section at the time of occurrence of the event while storing the voice information in the second storage unit 114b and transmits the voice information to the host terminal 130. [ At this time, the server 140 may mark the start and end points of the audio information section so that the server 140 can recognize the audio information before and after the event occurrence time, and transmit the marking information to the server 140. The marking information can be set in units of hour, minute and second based on the time of occurrence of the event. When the mode switch is operated, the terminal control unit 128 operates the slave terminal 110 in the wireless mode.

There is provided a host terminal 130 for communicating voice information collected by the slave terminal 110 to the server 140 while communicating wirelessly with the slave terminal 110. That is, the host terminal 130 is located between the slave terminal 110 and the server 140 and transmits voice information. At this time, wireless communication technology is applied to the host terminal 130, and wired communication technology is applied to the server 140 to transmit voice information. The second communication unit 134 for communicating with the first communication unit 132 for communication with the slave terminal 110 and the server 140 is configured. That is, the first communication unit 132 uses a wireless LAN (WLAN), ZigBee, Bluetooth, CDMA, Global System for Mobile Communication (GSM), long term evolution (LTE) The second communication unit 134 uses Ethernet, serial communication, or the like.

On the other hand, the host terminal 130 operates using an external power source and must be able to operate during the power down time using the internal battery 136 when the external power is turned off. Therefore, a function of charging the internal battery 136 while external power is supplied must also be provided.

The host terminal 130 is also provided with a host terminal control unit 138. This serves to transmit and receive data between the slave terminal 110 and the server 140, and also controls power management.

On the other hand, if the environment in which the slave terminal 110 and the server 140 can directly communicate with each other can be provided, the host terminal 130 does not necessarily have to be provided. However, in the case of this embodiment, a host terminal 130 capable of communicating with a plurality of slave terminals 110 is required, which is also applicable to a large scale industrial field. That is, the industrial sites are divided into a small number of small work sites, and the work environments are different for each work site. Accordingly, the host terminal 130 capable of performing the optimum function according to the work environment must be provided.

A server 140 having a processing unit 142 for receiving voice information from the host terminal 130 and storing the voice information in the DB 141 for each workplace, time zone, and host terminal is configured.

The server 140 uses a wired communication method with the host terminal 130. That is, the voice information is transmitted using the above-described Ethernet, serial communication method, or the like. Therefore, the server 140 is configured with a communication unit 144 for communication with the host terminal 130. [ Of course, the host terminal 130 and the server 140 may not receive voice information only through a wired communication method, but may receive voice information using the wireless communication method. That is, at least one of the above-mentioned wired communication or wireless communication method is selected according to the work environment in which the host terminal 130 and the server 140 are installed.

In addition, the server 140 may provide only the audio information described above, but may also configure the synchronization unit 146 to receive the video information and to match the audio information with the audio information. In other words, considering both audio information and video information, it is possible to know more accurately the cause of the accident and the occurrence process. Here, the image information may be a camera installed in an industrial field, for example, a CCTV. Accordingly, it is preferable that the server 140 is provided with a structure capable of directly receiving image information from the CCTV or receiving image information through a separate storage medium. Of course, the image information may be provided to the user interface 150 described below instead of being provided by the server 140. This is because the configuration for actually analyzing the voice information is the user interface 150. [

A user interface 150 for analyzing the voice information collected in the server 140 is configured. The user interface 150 may be configured in the server 140 or may be a separate device. The user interface 150 is basically capable of listening to voice information, inputting / modifying / deleting user information related to voice information, and providing a function of editing voice information. As described above, if the user interface 150 synchronizes the video information and the audio information, a synchronization unit or a configuration for processing image information should be provided.

An exemplary screen of such a user interface is shown in Fig.

5, a first screen 152 for displaying terminal information of the slave terminal 110 is displayed. The slave terminal information can normally be the unique ID of the terminal. When a specific slave terminal is selected from the first screen 152, a second screen 154 for displaying the user information of the slave terminal and a third screen 156 for displaying the user's audio information file are additionally displayed . In addition, a menu for deleting a part of the slave terminals displayed on the first screen 152 or adding a new slave terminal is also provided.

Meanwhile, the user interface 150 supports the broadcast mode. For example, the user interface 150 is directly handled by the administrator. Therefore, when the manager needs to transmit specific information to the workers, the information can be transmitted through the slave terminal 110. At this time, the user interface 150 may designate all of the slave terminal 110 or a specific slave terminal.

Next, the operational operation of the black box system for a workplace providing the above configuration will be described with reference to FIG. FIG. 6 is a flowchart illustrating an operational state of a black box system for a business according to a preferred embodiment of the present invention.

First, the slave terminal 110 is paid to all workers, and the worker puts on the waist, shoulder, hat or the like. During the work while the worker is wearing the slave terminal 110, all the voice information that the operator speaks is collected by the microphone 112, and is stored in the first storage unit 114a in accordance with the operation of the terminal control unit 128 (S102). At this time, when the data is stored in the first storage unit 114a, the compressed data is stored in a compressed state at a predetermined compression rate to improve utilization of the storage space. Of course, if the storage space of the first storage unit 114a is sufficient, it is not necessarily stored in a compressed state. For example, it is not necessary to compress the voice information generated during the worker's work time, if possible, without compressing the voice information. Of course, if there is not enough storage space, it may be possible to delete a predetermined amount of the previously stored voice information by first in first out (FIFO) method.

While the voice information is stored in the first storage unit 114a during the work time, the sensor 116 continuously senses a moment when a value equal to or larger than the reference value occurs (s104). Here, in step 104, it is possible to detect occurrence of various sound information that can determine the occurrence of an accident described above. Accordingly, if the sound detection sensor is provided to sense a sound volume greater than a predetermined value, the sound detection sensor will detect whether a sound volume greater than a reference value occurs (s106). That is, if the reference value is set to 100 dB, it is detected that the voice size is 100 dB or more. Needless to say, the reference value is different from sensor to sensor. And the above-mentioned 100 dB is only one embodiment. On the other hand, in the case of a sensor that detects sound information such as 'moaning sound', 'harming!' And 'live!' As another example of the sensor, it will detect the occurrence of these sound information.

If the sound volume is detected to be equal to or greater than the reference value of the sensing result of the sensor 116 or the sound information capable of determining the occurrence of an accident is sensed, the terminal control unit 128 determines the occurrence of an accident (s108). Usually, in case of an accident, the person in charge screams or makes a loud noise. Then, the sensor 116 outputs a detection signal (S110). At this time, it is not necessarily the case that an accident occurs because the detection signal is outputted. Even if an accident does not occur, the operator can speak out loud in some cases.

The terminal control unit 128 receives the detection signal of the sensor 116. Accordingly, the terminal control unit 128 reads audio information for a predetermined time from the first storage unit 114a and stores it in the second storage unit 114b on the basis of the time when the detection signal is received. At the same time, the terminal control unit 128 wirelessly transmits the voice information stored in the second storage unit 114b (hereinafter, referred to as "accident voice information") to the host terminal 130. Then, the host terminal 130 transmits the incident voice information back to the server 140 using the wire / wireless communication method (s112).

Then, the server 140 converts the accident voice information transmitted from the host terminal 130 into DB 141 (s114). The DB 141 may be stored for each of the host terminal 130 and the individual slave terminals 110, or may be stored in various ways such as by time period, by work, or the like. At this time, although the example of the accident voice information itself is DB 141, the marking information can be received. The marking information is information indicating a predetermined section of the voice information stored in the first storage unit 114a, which is a voice information section corresponding to a predetermined time before / after the occurrence of an accident. Accordingly, when the marking information is received, the marking information and voice information must be transmitted together.

Thereafter, when a manager or the like grasps the cause or situation at the time of the occurrence of an accident, the manager or the like analyzes the incident voice information through the user interface 150 (s116). At this time, the method of transferring the accident voice information to the user interface 150 may be performed using a wired / wireless communication method or in a state where a user interface is directly connected to the server.

When the user interface 150 is operated, the information shown in FIG. 5 is displayed on the screen. Of course, only the first screen 152 for displaying the list information of the slave terminal 110 will be initially displayed. In this state, when the administrator selects the slave terminal 110 carried by the accident-causing party, the manager displays a second screen 154 for displaying the user information of the slave terminal 110 and a second screen 154 for displaying the user's audio information file 3 screen 156 will be additionally displayed. In the second screen 154, the user ID, name, age, service charge, etc. of the user are displayed. In the third screen 156, the accident voice information is displayed in a list form. The list information displayed at this time does not include the incident voice information. As described above, the operator may make a noise regardless of the occurrence of an accident.

Therefore, the administrator selects a file corresponding to the time of occurrence of the accident among the list information displayed on the third screen 156. [ And if you play it, you can check the situation and analyze it.

At this time, if it is difficult to grasp the cause of the accident with only the accident voice information, it is possible to analyze it together with the image information. That is, in many cases, the CCTV is installed in the industrial field. Therefore, if the video information of the accident scene is recorded by the CCTV, the server 140 or the user interface 150 can receive the video information. And synchronizes the video information with the accident audio information. In this way, it is possible to more easily and accurately grasp the situation at the time of the occurrence of an accident, rather than analyzing only through voice information.

The voice information stored in the first storage unit 114a or the second storage unit 114b of the slave terminal 110 may be transmitted to the slave terminal 110 via the charging cradle unit or the USB port, Can be deleted.

That is, in the case of charging the slave terminal 110, since the worker does not work, it is completely independent of the occurrence of an accident. However, it is preferable that the voice information is deleted when the slave terminal is charged to about 90% or more of the slave terminal's charge (that is, 100%), rather than deleting the voice information at the start of charging. This is because voice information stored in the operator's own slave terminal 110 can be used to identify the cause of an accident when an operator is not accidentally caught by the operator himself and an accident occurs in the vicinity of the operator.

As described above, according to the present embodiment, when an operator working in an industrial field carries the slave terminal 110, voice information of a certain period is automatically stored in the server 140 when an accident occurs, It is understood that the basic technical point is that the information is analyzed so that the cause of the accident can be effectively grasped.

The present invention also includes a configuration for checking whether the slave terminal 110 is operating normally. That is, the server 140 needs to check whether the slave terminal 110 is currently operating normally if no voice information is inputted from the slot terminal 110 for a predetermined time or more. This check operation is performed to prevent a case where voice information can not be stored due to the fixing of the slave terminal 110 when an actual occurrence of an accident occurs.

The normal operation of the slave terminal 110 is performed by the server 140. Specifically, the server 140 searches at least one slave terminal for which no voice information is input, and transmits an operation confirmation request signal through the host terminal 130 only to the slave terminal searched. As a result, when the server 140 transmits a response signal to the operation confirmation request signal, it is determined that the server 140 is operating normally. On the other hand, in the case of a slave terminal that can not transmit a response signal to the operation confirmation request signal, it is determined that the slave terminal is damaged due to a failure, an accident, or the like, so that voice information can not be recorded. In this case, the server 140 performs a function of notifying the manager or the like so that the corresponding slave terminal can be repaired.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be apparent that modifications, variations and equivalents of other embodiments are possible. Therefore, the true scope of the present invention should be determined by the technical idea of the appended claims.

110: Slave terminal 112: Microphone
114: storage unit 116: sensor
118: Socket 122:
124: Mode switch 128:
130: Host terminal 132:
134: second communication unit 136: battery
138: Host terminal control section 140:
142: Processor 144:
146: synchronization unit 150: user interface

Claims (7)

Slave terminals for collecting voice information;
At least one host terminal receiving voice information from some or all of the slave terminals;
A server for storing the voice information transmitted through the host terminal for each host terminal and for each time slot; And
And a user interface for analyzing the voice information provided from the server. The method according to claim 1,
The slave terminal,
A sensor for sensing a reference value according to a working environment;
A socket on which the sensor is mounted;
A terminal control unit for controlling voice information for a predetermined period of time before and after the sensing point of time of the sensor;
A storage unit for storing the voice information; And
And a mode switch for enabling the slave terminal to be used as a radio. 3. The method of claim 2,
Wherein,
A first storage unit for storing normal audio information; And
And a second storage unit for storing only voice information for a predetermined period of time according to the detection result of the sensor. 3. The method of claim 2,
The terminal control unit,
And when the sensor outputs a detection signal, marks a part of the voice information stored in the first storage unit and transmits marking information to the server. 3. The method of claim 2,
The terminal control unit,
And the voice information stored in the storage unit is deleted only when the slave terminal is being charged. The method according to claim 1,
The slave terminal,
Further comprising a switch for allowing a corresponding sensor to operate according to a work environment when at least two of the sensors are mounted. The method according to claim 1,
The server comprises:
A slave terminal or a host terminal; And
And a synchronization unit for synchronizing the audio information and the video information,
Wherein the image information is provided from a camera installed at a work site.

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