KR20160135918A - Method of transmitting data for vehicle wireless sensor network system and apparatus using the same - Google Patents

Abstract

A data transmission method for a wireless sensor network system of a vehicle and an apparatus using the same are disclosed. A data transmission apparatus for a wireless sensor network system of a vehicle according to the present invention includes: a power supply unit that receives power from a vehicle using a USB module; A wireless sensor node communication unit for acquiring sensor information from at least one wireless sensor node installed in the vehicle; A transmission mode selection unit for selecting an information transmission mode for transmitting the sensor information to at least one of an internal device and an external device included in the vehicle; And a controller for transmitting the sensor information using at least one of the USB module and the wireless communication module according to the information transfer mode.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a data transmission method for a wireless sensor network system of a vehicle,

The present invention relates to a system and method for transmitting and receiving sensor information and an operation command to and from a wireless sensor node installed in an arbitrary position in a vehicle for a system utilizing a wireless sensor network applied in a vehicle, To the external device such as a vehicle, such as a vehicle.

In recent years, the intelligence of the vehicle has increased the number of sensors and ECUs (Electronic Control Units) in the vehicle, which is demanding the construction of an in-vehicle system with reduction in weight of the vehicle. Accordingly, in order to apply a wireless sensor network system that can be installed in electronic components in a vehicle to an in-vehicle system, domestic and foreign automobile-related companies are fiercely competing for securing related technologies. In addition, by interlocking the wireless sensor network system with an external device such as a head unit and a smart phone inside the vehicle, it is possible to transmit the sensor information of the internal / external wireless sensor nodes more conveniently to the driver, We are trying to provide more services.

In the prior art, a wireless transceiver having a cigar jack adapter is fixed to a terminal that can hold a cigar jack for a vehicle in a vehicle, and sensor information and an operation command can be transmitted and received to / from wireless sensor nodes disposed inside / outside the vehicle. When a cigarette-lang wireless transceiver transmits sensor information of an internal / external wireless sensor node to an external device such as a smart phone, a wireless communication module such as Bluetooth is placed inside a cigar-jack-type wireless transceiver, The sensor information of the sensor can be transmitted.

However, since the cigarette-laced wireless transceiver is based on the cigar jack adapter, it can receive power only from the vehicle. Without the wireless communication module, the sensor unit of the wireless sensor node Lt; / RTI > In addition, since a wireless communication module is additionally arranged to transmit sensor information of a wireless sensor node to an external device such as a head unit of a vehicle and a smart phone, there is a problem that additional cost is required for production and design .

Therefore, in constructing the system using the wireless sensor network applied in the vehicle, it is possible to transmit and receive the sensor information and the operation command to the wireless sensor nodes disposed at arbitrary positions inside / outside the vehicle, A data wireless transmitter technology is needed to efficiently transmit the unit information (Head Unit) and the vehicle internal / external sensor information. In addition, the data transmission device for constructing the system using the wireless sensor network in the vehicle should have no power supply problem like the cigar jack type wireless transceiver, and in order to interoperate with the head unit of the vehicle and the external device The cost burden of deploying additional wireless communication modules should not be increased.

Korean Patent Laid-Open No. 10-2012-0075555, July 9, 2012 (name: operation information management system and method using smart phone)

An object of the present invention is to provide a data transmission technique which can transmit sensor information of a wireless sensor network system to a head unit of a vehicle without using a separate wireless communication apparatus by using data transmission using a USB module.

It is another object of the present invention to efficiently and reliably transfer data using a USB communication method.

It is also an object of the present invention to save the cost of deploying additional wireless communication modules for communication with external devices.

According to an aspect of the present invention, there is provided a data transmission apparatus for a wireless sensor network system of a vehicle, including: a power supply unit receiving power from a vehicle using a USB module; A wireless sensor node communication unit for acquiring sensor information from at least one wireless sensor node installed in the vehicle; A transmission mode selection unit for selecting an information transmission mode for transmitting the sensor information to at least one of an internal device and an external device included in the vehicle; And a controller for transmitting the sensor information using at least one of the USB module and the wireless communication module according to the information transfer mode.

In this case, the transmission mode selection unit may include a first mode for transmitting the sensor information only to the internal device, a second mode for transmitting the sensor information only to the external device, and a second mode for transmitting the sensor information to both the internal device and the external device The information transmission mode corresponding to any one of the first to third modes may be selected.

At this time, the control unit transmits the sensor information to the internal device by connecting the USB module to the USB terminal of the vehicle, and transmits the sensor information to the wireless communication unit corresponding to at least one of Bluetooth, GSM, GPRS, CDMA, LTE, WiFi, Module to transmit the sensor information to the external device.

At this time, the transmission mode selection unit may select a mode corresponding to the position of the switch operated by the user among the first mode, the second mode and the third mode as the information transmission mode.

At this time, the power source unit can charge the auxiliary power source that can supply power when the power of the vehicle is turned off, when the power source is supplied through the USB module.

At this time, the controller may transmit the sensor information and complete the transmission of the sensor information using the auxiliary power source when the start of the vehicle is turned off.

The data transmission apparatus may further include a wireless sensor node control unit for generating a control command for controlling the at least one wireless sensor node and controlling the at least one wireless sensor node.

At this time, the wireless sensor node control unit may transmit the control command corresponding to the operation stop to the at least one wireless sensor node based on the power supplied through the auxiliary power source when the start of the vehicle is turned off.

At this time, the wireless sensor node communication unit may transmit the control command to the at least one wireless sensor node.

At this time, the wireless sensor node communication unit can perform data communication with the at least one wireless sensor node using a Zigbee method corresponding to the wireless communication method.

According to another aspect of the present invention, there is provided a data transmission method for a wireless sensor network system of a vehicle, comprising: receiving power from a vehicle using a USB module; Obtaining sensor information from at least one wireless sensor node installed in the vehicle; Selecting an information transfer mode for transferring the sensor information to at least one of a device connected to the vehicle and an external device; And transmitting the sensor information using at least one of the USB module and the wireless communication module according to the information transfer mode.

In this case, the selecting may include a first mode for transmitting the sensor information to only the internal device, a second mode for transmitting the sensor information only to the external device, and a second mode for transmitting the sensor information to both the internal device and the external device The information transmission mode corresponding to any one of the first to third modes may be selected.

In this case, the transmitting step transmits the sensor information to the internal device by connecting the USB module to the USB terminal of the vehicle, and transmits the sensor information to at least one of Bluetooth, GSM, GPRS, CDMA, LTE, WiFi, And can transmit the sensor information to the external device using the wireless communication module.

At this time, the selecting step may select the mode corresponding to the position of the switch operated by the user among the first mode, the second mode and the third mode as the information transfer mode.

At this time, the step of supplying may include charging auxiliary power that can supply power when the power of the vehicle is turned off when the power is supplied through the USB module.

In this case, in the transmitting step, when the starting of the vehicle is turned off while transmitting the sensor information, the transmission of the sensor information may be completed using the auxiliary power source.

In this case, the data transmission method may further include generating a control command for controlling the at least one wireless sensor node to control the at least one wireless sensor node.

At this time, the step of controlling includes transmitting the control command corresponding to the operation stop to the at least one wireless sensor node based on the power supplied through the auxiliary power supply when the vehicle is turned off .

At this time, the acquiring step may include transmitting the control command to the at least one wireless sensor node.

In this case, the step of transmitting the control command to the at least one wireless sensor node may perform data communication with the at least one wireless sensor node using a Zigbee method corresponding to the wireless communication method.

According to the present invention, it is possible to provide a data transmission technique capable of transmitting sensor information of a wireless sensor network system to a head unit of a vehicle without using a separate wireless communication apparatus by using data transmission using a USB module.

In addition, the present invention can efficiently and reliably perform data transmission using a USB communication method.

In addition, the present invention can save the cost of deploying additional wireless communication modules for communication with external devices.

1 is a diagram illustrating a data transmission system for a wireless sensor network system of a vehicle according to an embodiment of the present invention.
2 is a block diagram showing an example of the data transmission apparatus shown in FIG.
3 is a block diagram showing another example of the data transmission apparatus shown in FIG.
4 is a flowchart illustrating a data transmission method for a wireless sensor network system of a vehicle according to an embodiment of the present invention.
5 is a diagram illustrating a data transmission process for a wireless sensor network system of a vehicle according to an embodiment of the present invention.
Figure 6 is a diagram of a computer system in which an embodiment of the present invention is implemented.

The present invention will now be described in detail with reference to the accompanying drawings. Hereinafter, a repeated description, a known function that may obscure the gist of the present invention, and a detailed description of the configuration will be omitted. Embodiments of the present invention are provided to more fully describe the present invention to those skilled in the art. Accordingly, the shapes and sizes of the elements in the drawings and the like can be exaggerated for clarity.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram illustrating a data transmission system for a wireless sensor network system of a vehicle according to an embodiment of the present invention.

1, a wireless sensor network system for a vehicle according to an exemplary embodiment of the present invention includes a data transmission device 110, a head unit of a vehicle corresponding to an internal device, a smartphone corresponding to an external device, And may include a wireless sensor node.

The data transmission device 110 may form a wireless sensor network of a vehicle with at least one wireless sensor node installed at an arbitrary position inside and outside the vehicle.

At this time, it is possible to transmit and receive sensor information and a control command for the operation of the wireless sensor node through wireless communication with the wireless sensor node.

Unlike the cigar-jack-type wireless transceiver, the data transmission device 110 has a USB connector instead of a cigar jack adapter, so that the data transmission device 110 can be directly connected to a USB terminal located inside the vehicle. Therefore, power can be supplied from the vehicle through the USB terminal at all times.

In addition, the data transmission apparatus 110 can transmit and receive data efficiently and reliably using a USB communication method without a head unit and a wireless communication module of a vehicle. Accordingly, the internal and external sensor information of the vehicle transmitted from the data transmission device 110 can be provided to the driver of the vehicle through a display device connected to the head unit.

In this case, when it is desired to transmit sensor information to an external device such as a smart phone, it is transmitted using a wireless communication module such as Bluetooth, GSM, GPRS, CDMA, LTE, WiFi and WCDMA installed in the data transmission apparatus 110 .

At this time, the conventional cigar jack type wireless transceiver can only receive power from the vehicle through the cigarette jack adapter, and thus it has been impossible to transmit the sensor information to the head unit or the external device of the vehicle. Therefore, it was necessary to additionally provide a wireless communication module. For example, a cigar-jack-type wireless transceiver needs to have one wireless communication module, i.e., two wireless communication modules, in order to transmit sensor information to a head unit and an external device of a vehicle.

However, when data transmission apparatus 110 according to the present invention desires to transmit sensor information to a head unit of a vehicle, data can be transmitted while receiving power via USB, so that only a wireless communication module for an external device can be disposed . Accordingly, since the data transmission apparatus 110 uses fewer wireless communication modules than the conventional transmission / reception apparatus, the development cost in the production and design can be reduced.

2 is a block diagram showing an example of the data transmission apparatus shown in FIG.

1, the data transmission apparatus 110 includes a power unit 210, a wireless sensor node communication unit 220, a transmission mode selection unit 230, a control unit 240, and a sensor node control unit 250. [ . ≪ / RTI >

The power supply unit 210 can receive power from the vehicle using the USB module. The data transmission device 110 according to the present invention, which is a conventional cigarette-laden wireless transceiver, has a USB connector connected to a USB module, and is connected to a USB terminal in the vehicle to receive power from the vehicle at all times. Also, data communication with a head unit corresponding to an internal device of the vehicle can be performed without using an additional wireless communication module.

At this time, there may be a separate USB controller for data communication using the USB module, and USB data communication can be controlled using the USB controller.

At this time, when power is supplied through the USB module, an auxiliary power source that can supply power when the vehicle is turned off can be charged. That is, while the ignition key of the vehicle is in the ON state, the auxiliary power can be charged through the vehicle. If the start key of the vehicle is turned off and the power supply from the vehicle is cut off, the auxiliary power can be used to execute the remaining tasks of the data transfer apparatus 110. For example, when the vehicle is turned off, no power is supplied, so it may not transmit an operation stop command to the wireless sensor node or transmit a message to terminate data communication to the external device.

Therefore, even if the power supply is cut off from the vehicle, the remaining tasks such as transmitting an operation stop command to the wireless sensor node or transmitting a data communication end command to the external device can be executed by receiving power from the auxiliary power source.

The wireless sensor node communication unit 220 can acquire sensor information from at least one wireless sensor node installed in the vehicle.

At this time, the control command can be transmitted to at least one wireless sensor node.

At this time, data communication with at least one wireless sensor node can be performed using a Zigbee method corresponding to the wireless communication method.

That is, a control command capable of operating or controlling the wireless sensor node can be transmitted to at least one wireless sensor node disposed at an arbitrary position in the vehicle.

It may also perform the function of processing sensor information received from at least one wireless sensor node. For example, when sensor information is received from at least one wireless sensor node, the sensor information may be transferred to the USB module or the wireless communication module for external device according to the information transmission mode.

The transmission mode selection unit 230 may select an information transmission mode for transmitting sensor information to at least one of an internal device and an external device included in the vehicle.

At this time, the information transfer mode may be transfer setting information set in advance so that sensor information is transferred to at least one of an internal device such as a head unit of a vehicle or an external device such as a user's smart phone.

At this time, information transmission corresponding to one of a first mode for transmitting sensor information only to internal devices, a second mode for transmitting sensor information only to external devices, and a third mode for transmitting sensor information to internal devices and external devices Mode can be selected. For example, when the information transfer mode corresponds to the first mode, the sensor information can be transferred only to the head unit of the vehicle through the USB module. When the information transmission mode corresponds to the second mode, the wireless communication module can perform communication connection with the smartphone of the user and transmit the sensor information. When the information transmission mode corresponds to the third mode, the sensor information may be transmitted to the head unit of the vehicle and the user's smartphone using both the USB module and the wireless communication module.

At this time, it is also possible to set the basic mode to transmit the sensor information to the head unit of the vehicle via the USB module by the USB communication method. However, since an external device such as a smart phone is widely used, the driver wants to check the information of the vehicle from the external device, so that it can selectively transmit the sensor information to the external device while receiving power from the vehicle through the USB terminal.

At this time, the wireless communication module for the external device can be selectively provided according to the requirements of the developer or the user.

At this time, the mode corresponding to the position of the operated switch from among the first mode, the second mode and the third mode can be selected as the information transfer mode. For example, assuming that there are three switches corresponding to positions 1, 2, and 3 that can be operated by the user, when the user places the switch in position 1, Mode. Also, when the user places the switch at the second position, the information transfer mode is selected as the second mode, and similarly, when the user places the switch at the third position, the information transfer mode can be selected as the third mode.

The type of the switch may be variously arranged in a manner other than the method of moving the position, and the information transfer mode may also be variously present except for the first mode, the second mode and the third mode according to the present invention .

In addition, a switch may be selectively included depending on the presence or absence of a wireless communication module for an external device for transmitting sensor information to an external device.

The controller 240 may transmit the sensor information using at least one of the USB module and the wireless communication module according to the information transfer mode. For example, when sensor information is transmitted to an internal device included in a vehicle, the sensor information can be transferred to the USB data communication through the USB module. When transmitting sensor information to an external device located outside the vehicle, the sensor information can be transmitted using a wireless communication module that enables communication with an external device.

At this time, when the vehicle is started while the sensor information is transmitted, the transmission of the sensor information can be completed using the auxiliary power source. For example, if it is assumed that the vehicle is turned off and the power supply is interrupted while the sensor information is being transmitted to the smartphone of the user, the auxiliary power is turned on simultaneously with the start of the vehicle, Power can be supplied. Thereafter, the delivery of the sensor information that is being transmitted can be completed using the supplied power source.

In addition, after completing the transfer of the sensor information, a message indicating that the communication is terminated can be further transmitted to inform the external device, i.e., the smartphone, that the communication has ended.

At this time, the USB module is connected to the USB terminal of the vehicle to transmit the sensor information to the internal device, and the wireless communication module corresponding to at least one of Bluetooth, GSM, GPRS, CDMA, LTE, WiFi, Sensor information can be transmitted.

The sensor node controller 250 may control the at least one wireless sensor node by generating a control command for controlling at least one wireless sensor node. For example, it is possible to generate a control command corresponding to an operation command for operating at least one wireless sensor node upon start-up of the vehicle. In order to periodically acquire sensor information, a control command for requesting sensor information from at least one wireless sensor node may be periodically generated.

At this time, when the start of the vehicle is turned off, it is possible to transmit a control command corresponding to the operation stop to at least one wireless sensor node based on the power supplied through the auxiliary power source. That is, at least one wireless sensor node does not need to operate because there is no reason to acquire the sensor information of the vehicle if the vehicle is no longer operating since it is turned off. However, as soon as the vehicle is turned off, the power supplied through the USB terminal may also be cut off. Therefore, when the start of the vehicle is turned off, the power can be supplied from the auxiliary power source to transmit the operation stop control command to the wireless sensor node.

In addition, the external mechanism and the housing method of the data transfer apparatus 110 can be easily changed by the requirements of the developer or the user.

3 is a block diagram showing another example of the data transmission apparatus shown in FIG.

Referring to FIG. 3, the data transmission apparatus 310 shown in FIG. 1 may be connected to a USB terminal of a head unit 320 included in a vehicle through a USB connector.

At this time, when the start of the vehicle is turned on, the data transfer device 310 can be always supplied with power through the USB terminal of the vehicle.

Thereafter, the power supplied from the vehicle is transmitted to the power source through the USB module, so that all components of the data transmission device 310 can be operated.

In addition, the data transmission device 310 can acquire sensor information from at least one wireless sensor node 330 installed at an arbitrary position inside / outside the vehicle through the wireless sensor node communication unit.

At this time, the wireless sensor node communication unit may transmit the control command generated by the sensor node control unit to the wireless sensor node 330.

At this time, the wireless sensor node communication unit can perform communication with the wireless sensor node 330 using a Zigbee method corresponding to the wireless communication method.

In addition, the wireless sensor node communication unit may perform a function of processing the sensor information received from the wireless sensor node 330. [ For example, when the sensor information is received from the wireless sensor node 330, the sensor information may be transmitted to the USB module or the wireless communication module that communicates with the external device 340 according to the information transfer mode.

In addition, the data transmission apparatus 310 can select an information transmission mode for transmitting sensor information to at least one of the head unit 320 and the external device 340 of FIG. 3 through the transmission mode selection unit.

In this case, the first mode for transmitting the sensor information only to the head unit 320, the second mode for transmitting the sensor information only to the external device 340, and the second mode for transmitting the sensor information to both the head unit 320 and the external device 340 The information transmission mode corresponding to any one of the first to third modes.

At this time, the information transfer mode can be selected corresponding to the position of the switch. For example, if the switch of FIG. 3 is located at position 1, the information transfer mode can be selected as the first mode. Also, when the user places the switch at the second position, the information transfer mode is selected as the second mode, and similarly, when the user places the switch at the third position, the information transfer mode can be selected as the third mode.

The type of the switch may be variously arranged in a manner other than the method of moving the position, and the information transfer mode may also be variously present except for the first mode, the second mode and the third mode according to the present invention .

In addition, a switch may be optionally included depending on the presence or absence of a wireless communication module for an external device for transmitting sensor information to the external device 340.

 The data transmission device 310 may transmit sensor information to the head unit 320 and the external device 340 using at least one of the USB module and the wireless communication module according to the information transfer mode through the control unit

At this time, the external device 340 may correspond to all devices capable of data communication with the wireless communication module for external devices, such as a user's smartphone.

4 is a flowchart illustrating a data transmission method for a wireless sensor network system of a vehicle according to an embodiment of the present invention.

Referring to FIG. 4, a data transmission method for a wireless sensor network system of a vehicle according to an embodiment of the present invention can receive power from a vehicle using a USB module (S410).

A data transmission device according to the present invention, which is a conventional cigarette-laden wireless transceiver, has a USB connector connected to a USB module, and is connected to a USB terminal in the vehicle to receive power from the vehicle at all times. Also, data communication with a head unit corresponding to an internal device of the vehicle can be performed without using an additional wireless communication module.

At this time, there may be a separate USB controller for data communication using the USB module, and USB data communication can be controlled using the USB controller.

At this time, when power is supplied through the USB module, an auxiliary power source that can supply power when the vehicle is turned off can be charged. That is, while the ignition key of the vehicle is in the ON state, the auxiliary power can be charged through the vehicle. If the vehicle's ignition key is turned off and the power supply is disconnected from the vehicle, the auxiliary power can be used to execute the remaining tasks of the data transfer device. For example, when the vehicle is turned off, no power is supplied, so it may not transmit an operation stop command to the wireless sensor node or transmit a message to terminate data communication to the external device.

Therefore, even if the power supply is cut off from the vehicle, the remaining tasks such as transmitting an operation stop command to the wireless sensor node or transmitting a data communication end command to the external device can be executed by receiving power from the auxiliary power source.

In addition, the data transmission method for a wireless sensor network system of a vehicle according to an embodiment of the present invention may acquire sensor information from at least one wireless sensor node installed in the vehicle (S420).

At this time, the control command can be transmitted to at least one wireless sensor node.

At this time, data communication with at least one wireless sensor node can be performed using a Zigbee method corresponding to the wireless communication method.

That is, a control command capable of operating or controlling the wireless sensor node can be transmitted to at least one wireless sensor node disposed at an arbitrary position in the vehicle.

It may also perform the function of processing sensor information received from at least one wireless sensor node. For example, when sensor information is received from at least one wireless sensor node, the sensor information may be transferred to the USB module or the wireless communication module for external device according to the information transmission mode.

In addition, a data transmission method for a wireless sensor network system of a vehicle according to an embodiment of the present invention may select an information transmission mode for transmitting sensor information to at least one of an internal device included in a vehicle and an external device (S430).

At this time, the information transfer mode may be transfer setting information set in advance so that sensor information is transferred to at least one of an internal device such as a head unit of a vehicle or an external device such as a user's smart phone.

At this time, information transmission corresponding to one of a first mode for transmitting sensor information only to internal devices, a second mode for transmitting sensor information only to external devices, and a third mode for transmitting sensor information to internal devices and external devices Mode can be selected. For example, when the information transfer mode corresponds to the first mode, the sensor information can be transferred only to the head unit of the vehicle through the USB module. When the information transmission mode corresponds to the second mode, the wireless communication module can perform communication connection with the smartphone of the user and transmit the sensor information. When the information transmission mode corresponds to the third mode, the sensor information may be transmitted to the head unit of the vehicle and the user's smartphone using both the USB module and the wireless communication module.

At this time, it is also possible to set the basic mode to transmit the sensor information to the head unit of the vehicle via the USB module by the USB communication method. However, since an external device such as a smart phone is widely used, the driver wants to check the information of the vehicle from the external device, so that it can selectively transmit the sensor information to the external device while receiving power from the vehicle through the USB terminal.

At this time, the wireless communication module for the external device can be selectively provided according to the requirements of the developer or the user.

At this time, the mode corresponding to the position of the operated switch from among the first mode, the second mode and the third mode can be selected as the information transfer mode. For example, assuming that there are three switches corresponding to positions 1, 2, and 3 that can be operated by the user, when the user places the switch in position 1, Mode. Also, when the user places the switch at the second position, the information transfer mode is selected as the second mode, and similarly, when the user places the switch at the third position, the information transfer mode can be selected as the third mode.

The type of the switch may be variously arranged in a manner other than the method of moving the position, and the information transfer mode may also be variously present except for the first mode, the second mode and the third mode according to the present invention .

In addition, a switch may be selectively included depending on the presence or absence of a wireless communication module for an external device for transmitting sensor information to an external device.

In addition, the data transmission method for a wireless sensor network system of a vehicle according to an embodiment of the present invention may transmit sensor information using at least one of a USB module and a wireless communication module according to an information transfer mode (S440). For example, when sensor information is transmitted to an internal device included in a vehicle, the sensor information can be transferred to the USB data communication through the USB module. When transmitting sensor information to an external device located outside the vehicle, the sensor information can be transmitted using a wireless communication module that enables communication with an external device.

At this time, when the vehicle is started while the sensor information is transmitted, the transmission of the sensor information can be completed using the auxiliary power source. For example, if it is assumed that the vehicle is turned off and the power supply is interrupted while the sensor information is being transmitted to the smartphone of the user, the auxiliary power is turned on at the same time when the vehicle is turned off, . Thereafter, the delivery of the sensor information that is being transmitted can be completed using the supplied power source.

In addition, after completing the transfer of the sensor information, a message indicating that the communication is terminated can be further transmitted to inform the external device, i.e., the smartphone, that the communication has ended.

At this time, the USB module is connected to the USB terminal of the vehicle to transmit the sensor information to the internal device, and the wireless communication module corresponding to at least one of Bluetooth, GSM, GPRS, CDMA, LTE, WiFi, Sensor information can be transmitted.

In addition, although not shown in FIG. 4, a data transmission method for a wireless sensor network system of a vehicle according to an embodiment of the present invention generates a control command for controlling at least one wireless sensor node, The sensor node can be controlled. For example, it is possible to generate a control command corresponding to an operation command for operating at least one wireless sensor node upon start-up of the vehicle. In order to periodically acquire sensor information, a control command for requesting sensor information from at least one wireless sensor node may be periodically generated.

At this time, when the start of the vehicle is turned off, it is possible to transmit a control command corresponding to the operation stop to at least one wireless sensor node based on the power supplied through the auxiliary power source. That is, at least one wireless sensor node does not need to operate because there is no reason to acquire the sensor information of the vehicle if the vehicle is no longer operating since it is turned off. However, as soon as the vehicle is turned off, the power supplied through the USB terminal may also be cut off. Therefore, when the start of the vehicle is turned off, the power can be supplied from the auxiliary power source to transmit the operation stop control command to the wireless sensor node.

Also, the external device and the housing method according to the data transmission method for the wireless sensor network system of the vehicle according to the present invention can be easily changed according to the requirements of the developer or the user.

5 is a diagram illustrating a data transmission process for a wireless sensor network system of a vehicle according to an embodiment of the present invention.

Referring to FIG. 5, a data transmission process for a wireless sensor network system of a vehicle according to an embodiment of the present invention begins with a data transmission device 510 connected to a USB terminal in a vehicle, Power can be supplied at a time point when the key Key becomes On (S502) (S504).

Thereafter, the data transfer apparatus 510 can confirm the position of the switch (S506).

At this time, it is possible to determine in advance whether to transmit the sensor information to the head unit 520 of the vehicle or the sensor information to the external device 540 through the USB module by confirming the positional state of the switch.

Thereafter, the data transmission apparatus 110 may transmit a control command for operation to the wireless sensor node 530 (S508).

Thereafter, at least one wireless sensor node 530 installed at an arbitrary position inside and outside the vehicle may transmit sensor information to the data transmission apparatus 510 (S510).

 Thereafter, the information transfer mode can be selected according to the switch position of the data transfer apparatus 510.

At this time, in FIG. 5, it is determined whether the switch is located at the first position (S512). If the switch is located at position 1, the information transmission mode is switched to the first Mode and transmits the sensor information to the head unit 520 of the vehicle (S514).

At this time, the data transmission device 510 can transmit the sensor information to the head unit 520 of the vehicle using the USB module without using a separate wireless communication module.

As a result of the determination in step S512, if the switch is not positioned at the first position, it can be determined whether the switch is located at the second position (S516).

As a result of the determination in step S516, if the switch is located at position 2, it is determined that the information transfer mode is the second mode for transmitting the sensor information only to the external device 540, and the sensor information may be transmitted to the external device 540 S518).

At this time, the data transmission device 510 can transmit the sensor information to the external device 540 using the wireless communication module for the external device.

As a result of the determination in step S516, if the switch is not located at the second position, it can be determined that the switch is located at the third position (S520). That is, it can be determined that the information transfer mode is the third mode in which the sensor information is transmitted to both the head unit 520 and the external device 540 of the vehicle.

Accordingly, the sensor information can be transmitted to the head unit of the vehicle through the USB module (S522), and the sensor information can also be transmitted to the external device 540 via the wireless communication module (S524).

The data transmission apparatus 510 receives the sensor information from the wireless sensor node 530 and transmits the sensor information to the head unit 530 and the external device 540 of the vehicle, S526), the supply of power from the vehicle may be interrupted (S528).

At this time, the data transfer apparatus 510 operates an auxiliary power source (S530) and completes the remaining tasks such as transfer of sensor information (S532).

Thereafter, the data transmission apparatus 510 transmits a control command corresponding to the operation stop to at least one wireless sensor node (S534), and may terminate the wireless communication with the external device (S536).

Figure 6 is a diagram of a computer system in which an embodiment of the present invention is implemented.

Referring to FIG. 6, embodiments of the present invention may be implemented in a computer system such as a computer-readable recording medium. 6, the computer system 620-1 includes one or more processors 621, a memory 623, a user input device 626, a user output device 627, And storage 628. In addition, the computer system 620-1 may further include a network interface 629 connected to the network. The processor 621 may be a central processing unit or a semiconductor device that executes the processing instructions stored in the memory 623 or the storage 628. [ Memory 623 and storage 628 may be various types of volatile or non-volatile storage media. For example, the memory may include ROM 624 or RAM 625.

Thus, embodiments of the invention may be embodied in a computer-implemented method or in a non-volatile computer readable medium having recorded thereon instructions executable by the computer. When computer readable instructions are executed by a processor, the instructions readable by the computer are capable of performing the method according to at least one aspect of the present invention.

As described above, the data transmission method for a wireless sensor network system of a vehicle according to the present invention and the device using the same are not limited to the configuration and method of the embodiments described above, All or some of the embodiments may be selectively combined so as to allow the modification to be made.

110, 310, 510: Data transfer device
210:
220: wireless sensor node communication section
230: transmission mode selection unit
240:
250: Sensor node control section
320, 520: Head Unit (Head Unit)
330, 530: Wireless sensor node
340, 540: external device

Claims (1)

A power supply unit that receives power from the vehicle using the USB module;
A wireless sensor node communication unit for acquiring sensor information from at least one wireless sensor node installed in the vehicle;
A transmission mode selection unit for selecting an information transmission mode for transmitting the sensor information to at least one of an internal device and an external device included in the vehicle; And
A controller for transmitting the sensor information using at least one of the USB module and the wireless communication module according to the information transfer mode,
And transmitting the data to the wireless sensor network system.

Images