KR100902779B1 - Data communication module using the wireless network - Google Patents

Abstract

A data communications module using wireless network for mounting a communication device in a protection equipment is provided to support data communications in an industrial site by implementing wireless communication by mounting the data communication module to a safety helmet or a safety belt. A sensor unit(610) senses an external button. A storage unit(620) stores the node related information. A voice input/output unit(640) outputs or inputs voice data. The call connect request signal is transmitted through a controller(630). The controller opens voice communication if call connection approving signal corresponding to the call connect request signal is received from the other node. A communications unit receives and transmits the audio data.

Description

DATA COMMUNICATION MODULE USING THE WIRELESS NETWORK}

The present invention relates to a voice communication, and in particular, a wireless network supporting data communication in a corresponding industrial site by implementing a wireless communication by mounting a data communication module based on a short range wireless communication network on a safety helmet or a seat belt used in various industrial sites. It relates to a wireless communication module using.

In general, in industrial sites such as construction sites, voice communication is implemented using communication devices such as walkie-talkies to manage emergencies occurring in industrial sites and the work contents of workers.

In addition, in the case of data communication, there is a trend to use a Radio Frequency Identification (RFID) system, which is one of USN (Ubiquitous Sensor Network) based communication methods.

However, in the case of the RFID tag used in the RFID system, since the recognition distance is very close to less than 5m, a lot of repeaters or concentrators are uneconomical, and there is a disadvantage in that construction in an actual construction site is impossible.

In addition, there is a disadvantage that each system must be implemented separately because the voice communication and data communication are not made of one system.

The present invention has been made in view of the above problems, the purpose of which is to inconvenience the need to carry a separate communication device by mounting a communication device in a safety protective equipment, such as a helmet, seat belts are mandatory to wear in various industrial sites To provide a data communication module using a wireless network to prevent the problem.

An object of the present invention is to provide a data communication module using a wireless network that performs voice and data communication through the connected call by simply connecting the call with a simple button input.

An object of the present invention is to efficiently manage the attendance and work content of workers by communicating to the manager in real time the situation or worker's work occurring in the industrial site using a communication device mounted on a safety helmet such as a hard hat or a seat belt. To provide a data communication module using a wireless network made in real time.

An object of the present invention is to further equip the safety helmet wearing recognition sensor in real time to check whether wearing the helmet must be worn in the industrial site by encouraging and mandatory to wear the helmet of the helmet to reduce the industrial accidents caused by the non-hat wearing It is to provide a data communication module using.

It is an object of the present invention to provide a data communication module using a wireless network to build an efficient safety management system in a workplace by monitoring in real time whether a worker's helmet is worn in preparation for a dangerous situation that may occur in an industrial site such as a real-time construction site. .

Voice communication system according to an embodiment of the present invention for achieving the above object is a voice communication system based on a short-range wireless communication network including a router (router) and a plurality of nodes connected to the router, a button A first node for transmitting a call connection request signal according to an input, receiving a call connection approval signal corresponding to the transmitted call connection request signal, and establishing a voice communication; and receiving the call connection request signal from the first node And a router for activating the corresponding nodes by transferring the received call connection request signal to a plurality of nodes, and receiving and activating the call connection request signal from the router, when there is a button input in the activated state. A second node for transmitting the call connection approval signal to the first node to approve establishment of voice communication with the first node. It is made with the basic features of the technical configuration.

A voice communication method according to an embodiment of the present invention for achieving the above object is a voice communication method based on a short range wireless communication network including a router and a plurality of nodes connected to the router. The first node transmits a call connection request signal according to a button input, and the router receiving the call connection request signal from the first node transmits the call connection request signal to a plurality of connected nodes to activate the corresponding nodes. And calling the second node by transmitting voice data to the activated nodes by the first node, and sending the call connection approval signal according to a button input by the called second node to the first node. And establishing a voice communication between the first node and the second node. It is done.

Data communication module according to an embodiment of the present invention for achieving the above object is a data communication module based on a short-range wireless communication network provided in the seat belt, the sensor unit for detecting an external button input, and the data communication module A storage unit for storing node related information including at least one of an IP, a port, and a USN ID of the corresponding node, a voice input / output unit for inputting or outputting voice data, and a button input detected through the sensor unit When the call connection request signal corresponding to the call connection request signal is received from another node, and controls to transmit a call connection request signal including the node-related information stored in the storage unit to establish a voice communication with the other node. A control unit and the call connection request signal and the call connection approval signal under the control of the controller, and the voice communication After the opening has to be made to a communication unit for transmitting and receiving the said other node and the voice data to the base characterized in that on the technical configuration.

The present invention has the effect of preventing the inconvenience of having to carry a separate communication device by mounting the communication device in a safety helmet, such as a helmet, seat belts are mandatory to wear in various industrial sites, such as construction sites.

The present invention connects a call with a simple button input and performs voice and data communication through the connected call, thereby real-time and efficiently monitoring the industrial site by transmitting a situation or worker's work content occurring in the industrial site to a manager in real time. It can work.

The present invention has the effect of preventing the industrial accident caused by the non-hat wearing by wearing a hard hat wearing recognition sensor to further check whether wearing the helmet.

The present invention has the effect of building an efficient safety management system in the industrial site by real-time monitoring of the danger situation that may occur in the industrial site, such as construction sites.

The objects, features and advantages of the present invention will become apparent from the detailed description of the embodiments with reference to the accompanying drawings.

Hereinafter, with reference to the accompanying drawings illustrating the configuration and operation of the embodiment of the present invention, the configuration and operation of the present invention shown in the drawings and described by it will be described as at least one embodiment, By the technical spirit of the present invention described above and its core configuration and operation is not limited.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of a voice communication method using a wireless network, a system therefor and a data communication module according to the present invention.

1 is a block diagram showing a schematic configuration of a voice communication system according to an embodiment of the present invention.

As shown in FIG. 1, the voice communication system according to the present invention includes a network 110, a router 120, and a plurality of node groups 130.

The network 110 is an integrated type of a local area wireless communication network based on a USN (Ubiquitous Sensor Network) including WLAN, ZigBee, Bluetooth, Ultra Wide Band (UWB), and Z-Wave. Is provided.

The router 120 is a relay device in which WLAN and USN are combined while supporting communication connection of the corresponding node group, and will be described using the first router 121 as an example.

The first router 121 transmits a call connection request signal transmitted from the first node 131 which is a specific originating node among the nodes belonging to the first node group 130 connected thereto, and the second node 132 which is a specific receiving node. Receives the call connection approval signal transmitted from the) and transmits to a plurality of nodes belonging to the first node group 130 connected thereto. In addition, the first router 121 may transmit and receive voice data for the voice communication after the voice communication is established.

The first router 121 may call other routers of the same layer, such as the second router 122 and the third router 123, which are present in the network 110, in addition to the node group 130 of the lower layer connected thereto. It transmits connection request signal, call connection approval signal and voice data. The other routers 122 and 123 transmit a call connection request signal or a call connection approval signal and voice to a node group (for example, second and third node groups) of lower layers connected to the other routers 122 and 123, respectively. Pass the data. Thus, all node groups and nodes belonging to them within the network 110 can receive signals and data in this manner.

More specifically, when the first node 131 transmits a call connection request signal according to a button input for voice transmission, the first router 121 which is a higher layer of the first node 131 receives the call connection request signal. do. The first router 121 transmits the received call connection request signal to a plurality of nodes belonging to the first node group 130 connected to the lower layer of the router 121. In the present invention, the first node 131 and the second node 132 is provided with a hook button for button input, and when the user presses the hook button, the button input is output by outputting corresponding data. Can be detected.

Thereafter, a plurality of nodes belonging to the first node group 130 that receives the call connection request signal transmitted from the first router 121 are activated to receive data transmitted later. In addition, it is assumed that the first node 131 transmits voice data for calling the second node 132, which is a voice communication target, with a plurality of nodes belonging to the first node group 130 activated.

Accordingly, the voice data transmitted from the first node 131 is transmitted to all the plurality of nodes belonging to the first node group 130 in the same manner as the call connection request signal is transmitted. At this time, the call connection request signal transmitted from the first node 131 further includes a USN ID of the first node 131.

Accordingly, if there is a button input according to the recognition of the call from the first node 131, the second node 132, which is one of the first node groups 130, transmits a call connection approval signal, and transmits the transmitted call connection. The acknowledgment signal is transmitted to the first node 131 via the first router 121. Here, the call connection approval signal transmitted from the second node 132 further includes a corresponding IP, port, USN ID, etc. of the second node 132.

Thereafter, the first node 131 receiving the call connection approval signal establishes voice communication with the second node 132 and performs 1: 1 voice communication with the second node 132.

As described above, the voice communication system according to the present invention can be applied to an industrial site such as a construction site, and at this time, the plurality of nodes includes a data communication module for supporting communication through a network. In particular, the data communication module can be implemented in safety protective equipment such as a hard hat or a seat belt which are essentially worn in the industrial field.

In addition, the call connection request signal and the call connection approval signal for voice communication between a plurality of nodes are transmitted and received through the USN, and voice data transmission and reception after the voice communication is established is preferably implemented through a specific channel of the WLAN. Do.

In particular, the router 120 may transmit and receive a call connection request signal and a call connection approval signal for voice communication transmitted and received from one node group to another node group through the USN, and the voice is made after the voice communication is established. It is desirable to implement data transmission and reception between node groups through a specific channel of the WLAN.

FIG. 2 is a flowchart illustrating a voice communication method according to an embodiment of the present invention, and illustrates an example of voice communication in the first node group 130 of FIG. 1.

As shown in FIG. 2, when there is a button input for establishing a voice communication through a short range wireless communication network at the first node 131, the first node 131 receives a call connection request signal for establishing voice communication. It transmits to the router 121 which is a higher layer of the first node 131 [S210, S211]. At this time, the call connection request signal transmitted from the first node 131 includes the USN ID of the first node 131. In addition, the short-range wireless communication network is a USN (Ubiquitous Sensor Network) -based communication method including ZigBee, Bluetooth, UWB (Ultra Wide Band), Z-Wave and WLAN (Wireless LAN) are integrated. It is supported in the form, the router 121 is also a relay device of the type combined with USN and Wireless LAN (WLAN).

The router 121 receiving the call connection request signal transmits the call connection request signal to the plurality of nodes of the first node group 130 connected to the lower layer. Of course, the router 121 may also transmit a call connection request signal to nodes of all the node groups connected to the plurality of routers connected to the routers in the same network.

All nodes that receive the connection request signal are switched to the active state and wait to receive data to be transmitted afterwards [S212, S213].

Thereafter, the first node 131 transmits call data in the form of voice for calling the second node 132 which is a voice communication target among the plurality of nodes belonging to the first node group 130. The transmitted call data is transmitted to the second node 132 via the router 121 in the same manner as in the call connection request signal transmission, and accordingly, the second node 132 receives the call data [S214, S215].

At this time, the second node 132 transmits a call connection approval signal according to a button input of a user who recognizes that he / she is a voice communication target through call data transmitted from the first node 131, and the router 121 The call connection approval signal is transmitted to the first node 131 in the same manner as the call connection request signal and the call data transmission method. Accordingly, the first node 131 receives the call connection approval signal [S216, S217, S218]. The call connection approval signal transmitted from the second node 132 further includes information such as a corresponding IP, a port, and a USN ID of the second node.

Then, the first node 131 receiving the call connection approval signal establishes communication with the second node 132 and performs 1: 1 voice communication with the second node 132 [S219, S220]. At this time, a call connection request signal and a call connection approval signal for voice communication between nodes are transmitted and received through USN, and voice data transmission and reception performed after voice communication between two nodes 131 and 132 is established through a specific channel of WLAN. Is done.

In addition, the voice communication system according to the present invention as described above is applied to industrial sites, such as construction sites, the nodes to have a data communication module corresponding to the network. Therefore, it is preferable that the nodes are implemented in safety protective equipment such as a hard hat or a seat belt which are essentially worn in an industrial site. In particular, the data communication module to be described later is most preferably implemented in a removable form on the seat belt.

3 is an exemplary view showing a voice communication system implemented in a safety protective device of an industrial site according to an embodiment of the present invention.

As shown in FIG. 3, a helmet wearing recognition sensor for determining whether the helmet is normally worn is installed in a helmet 310 which is obliged to be worn in an industrial site, and the seat belt 320 is capable of voice communication. Mount the module 321.

The data communication module 321 supports a Ubiquitous Sensor Network (USN) based short range wireless communication network including ZigBee, Bluetooth, Ultra Wide Band (UWB), and Z-Wave.

In addition, the data communication module 321 may be provided in the seat belt 320, and may transmit and receive voice data only when the user presses the hook button 330 by the user. In addition, as an example, the data communication module 321 may be configured as an ear microphone separate from the module main body, and the module main body and the ear microphone may be wired or wirelessly connected. In particular, the module body may be attached to the seat belt 320, the ear microphone may be provided in a removable form on the helmet 310. Accordingly, voice data input and output to the ear microphone may be transmitted and received with the data communication module of another node according to the relay of the module body attached to the seat belt 320.

In addition, the safety helmet wearing recognition sensor mounted on the helmet 310 can be confirmed in real time whether the wearing of the helmet must be worn at the industrial site in real time to reduce the industrial accident caused by the non-hat wearing, It is possible to establish an efficient safety management system in the workplace in preparation for the risk situation that may occur in the field in real time.

4 is a diagram schematically illustrating a communication configuration between a communication device and a router according to an embodiment of the present invention, and the communication device corresponds to the module body of the data communication module 321 described above.

As shown in FIG. 4, the router 430 according to the present invention operates as a relay device in which a USN and a WLAN are combined. Accordingly, the router 430 performs call processing such as call connection request signal and call connection approval signal for voice communication between nodes through USN communication, and voice data transmission / reception performed after voice communication is established through WLAN communication. By performing the above, the communication device 420 using the battery power can be driven at low power.

As described above, call processing for voice communication is performed through USN communication, and voice communication is performed through WLAN, thereby improving a problem of delaying transmission / reception of data that occurs due to the overload of a communication node. Node-related information including IDs, IPs, ports, etc. of a receiving node and a sending node used for the call may be utilized as call connection information.

In addition, although all nodes existing in the network respond to the call transmission for establishing the voice communication, 1: 1 communication is performed with the last connected receiving node after the voice communication is established. At this time, transmission and reception of voice data through the established voice communication is performed through the data communication module. However, the communication device 420 may be wired or wirelessly connected to an ear microphone 410 for voice input / output and transmission and reception as shown in FIG. 4, and the ear microphone 410 may be attached to a hard hat. Accordingly, voice data input and output by the ear microphone 410 may be transmitted and received through the relay of the communication device 420.

5 is a diagram schematically illustrating an operation state conversion of a data communication module according to an embodiment of the present invention.

Since the data communication module according to the present invention is driven using a battery power source, the data communication module should operate at the lowest power. Accordingly, when data is not transmitted or received to the data communication module corresponding to the originating node of the voice communication, the communication device (corresponding to the module main body described above) of the data communication module may receive the reception mode 510 or sleep according to the power consumption. Operate in mode 520.

However, if the voice communication button is pressed in the form of a hook button (hook) is detected, the data communication module is switched to the transmission mode 540 via the wake-up mode 530, the call connection request signal to the receiving node of the voice communication target Send.

Then, when data transmission is completed and the voice communication button is no longer pressed, the communication device of the data communication module switches back to sleep mode 520 and waits until a response signal is received from the voice communication target.

By minimizing the power consumption of the communication device by the operation of the data communication module as described above, it is possible to efficiently use the use time of the battery mounted in the communication device.

FIG. 6 is a block diagram illustrating a schematic configuration of a data communication module mounted on a helmet and / or a seat belt according to an embodiment of the present invention.

As shown in FIG. 6, the data communication module according to the present invention includes a sensor unit 610, a storage unit 620, a control unit 630, a voice input / output unit 640, and a communication unit 650.

The short range wireless communication network supported by the data communication module includes a ZigBee, Bluetooth, Ultra Wide Band (UWB), Z-Wave, etc. based on a Ubiquitous Sensor Network (USN).

The sensor unit 610 detects a button input by a user and is implemented in the form of a hook button.

The storage unit 620 stores node related information including an IP, a port, and a USN ID of a node corresponding to the data communication module.

The voice input / output unit 640 inputs or outputs voice data, and inputs and outputs voice data only when a button input is detected by the sensor unit 610 implemented in the form of a hook button.

If a button input is detected through the sensor unit 610, the controller 630 controls to transmit a call connection request signal including node related information stored in the storage unit 620 to another node that is a voice communication target. Then, when a call connection approval signal corresponding to the call connection request signal is received from the other node, the control unit 630 with the other node for transmitting and receiving voice data input and output through the voice input and output unit 640 with another node. Establish voice communication.

The communication unit 650 transmits a call connection request signal including node related information stored in the storage unit 620 under the control of the controller 630 and receives a call connection approval signal of another node. After the voice communication is established, voice data is transmitted and received with other nodes. The communication unit 650 supports a communication method in which a USN and a wireless LAN (WLAN) are combined, and a call connection request signal and a call connection approval signal including node-related information are transmitted and received through the USN, and for voice communication. Voice data is transmitted and received through a specific channel of a WLAN (Wireless LAN).

As described above, the data communication module according to the present invention is applied to an industrial site such as a construction site, and is preferably implemented in a safety helmet such as a hard hat or a seat belt which are essentially worn in an industrial site.

In addition, the data communication module may be configured as an ear microphone (ear mic) separate from the module main body, and the module main body may include a sensor unit 610, a storage unit 620, a control unit 630, a voice input / output unit 640, and a communication unit. 650 may be embedded, and the ear microphone may transmit / receive voice data with the voice input / output unit 640 while being connected to the module main body or wired or wirelessly.

Separately, the data communication module may be implemented in a separate ear microphone form and detached from the helmet.

Although specific embodiments of the present invention have been described with reference to the drawings, this is intended to be easily understood by those of ordinary skill in the art, and is not intended to limit the technical scope of the present invention.

Accordingly, the technical scope of the present invention is determined by the matters described in the claims, and the embodiments described with reference to the drawings may be modified or modified as many as possible within the technical spirit and scope of the present invention.

1 is a block diagram showing a schematic configuration of a voice communication system according to an embodiment of the present invention.

2 is a flowchart illustrating a flow of a voice communication method according to an embodiment of the present invention.

3 is an exemplary view showing a voice communication system implemented in a safety protective device of an industrial site according to an embodiment of the present invention.

4 is a diagram schematically illustrating a communication configuration between a communication device and a router according to an embodiment of the present invention.

5 is a diagram schematically illustrating an operation state conversion of a data communication module according to an embodiment of the present invention.

6 is a block diagram illustrating a schematic configuration of a data communication module mounted on a hard hat and / or a seat belt according to an embodiment of the present invention.

Claims (19)

delete delete delete delete delete delete delete delete delete delete delete A data communication module based on a short range wireless communication network provided in a seat belt, A sensor unit detecting an external button input; A storage unit storing node related information including at least one of an IP, a port, and a USN ID of a node corresponding to the data communication module; A voice input / output unit for inputting or outputting voice data; When a button input is detected through the sensor unit, the control unit transmits a call connection request signal including node related information stored in the storage unit, and receives a call connection approval signal corresponding to the call connection request signal from another node. A controller for establishing voice communication with the node; And And a communication unit configured to transmit and receive the call connection request signal and the call connection approval signal under control of the controller, and to transmit and receive the voice data with the other node after the voice communication is established. Data communication module using. The method of claim 12, The short-range wireless communication network is any one of ZigBee, Bluetooth, Ultra Wide Band (UWB), and Z-Wave based on a Ubiquitous Sensor Network (USN). module. The method of claim 12, The sensor unit detects a button input by a user, and a data communication module using a wireless network, characterized in that it is implemented in the form of a hook (hook) button. The method of claim 12, The communication unit is a data communication module using a wireless network, characterized in that for supporting the communication method of the type combined with the USN and Wireless LAN (WLAN). The method of claim 15, And the communication unit transmits and receives the node related information through a USN. The method of claim 15, And the communication unit establishes the voice communication on a specific channel of a wireless local area network (WLAN). The method of claim 12, The established voice communication is a data communication module using a wireless network, characterized in that the 1: 1 between the wearer of the seat belt and the voice communication target. The method of claim 12, The data communication module includes an ear microphone separate from a module main body, and the module main body includes the sensor unit, the storage unit, the voice input / output unit, the control unit, and the communication unit. And a wired / wireless connection to the module main body to transmit and receive voice data with the voice input / output unit.

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