KR101537190B1 - Energy independent sensor system for vehicle electric device based on visible light communication - Google Patents

Energy independent sensor system for vehicle electric device based on visible light communication Download PDF

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Publication number
KR101537190B1
KR101537190B1 KR1020140055119A KR20140055119A KR101537190B1 KR 101537190 B1 KR101537190 B1 KR 101537190B1 KR 1020140055119 A KR1020140055119 A KR 1020140055119A KR 20140055119 A KR20140055119 A KR 20140055119A KR 101537190 B1 KR101537190 B1 KR 101537190B1
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South Korea
Prior art keywords
vehicle
light source
state information
module
light
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KR1020140055119A
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Korean (ko)
Inventor
정성윤
Original Assignee
영남대학교 산학협력단
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Priority to KR1020140055119A priority Critical patent/KR101537190B1/en
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Publication of KR101537190B1 publication Critical patent/KR101537190B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link

Abstract

The present invention relates to an energy independent sensor system for vehicle electric devices based on visible light communication. The energy independent sensor system for vehicle electric devices based on visible light communication according to the present invention comprises: a light source unit; and a vehicle condition information detecting unit for being operated by electric energy created by conducting a photoelectric transformation of the light energy supplied by the light source unit and for detecting the condition information of the vehicle. According to the present invention, the present invention can provide an energy independent sensor system for vehicle electric devices based on visible light communication which can semi-permanently supply operating power for various sensors installed in a vehicle and receive the information collected by the sensors wirelessly without using a separate communication wiring.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an energy-

The present invention relates to an energy-independent visible light based vehicle full field sensor system. More particularly, the present invention relates to an energy-based visible light-based vehicle electric vehicle capable of wirelessly supplying power for operating various sensors installed in an engine room of a vehicle in a visible light manner and receiving status information collected by the sensors using visible light communication Sensor system.

Generally, in an engine room of a vehicle such as an automobile, various electric devices for driving the vehicle and a plurality of sensors for detecting the state of the electric devices are installed.

The status information of the vehicles acquired by these sensors is sent to the Engine Control Unit (ECU) or the On-Board Diagnosis (OBD) and used as data for vehicle operation and inspection.

Conventionally, each sensor uses a built-in battery as a power source for operating these sensors, and a wired communication method such as a CAN (Control Area Network) is used for communication between the sensor and the ECU or OBD.

However, according to the conventional method of supplying power to the sensor using the built-in battery, there is a problem that efficiency in maintenance is deteriorated because the battery must be periodically replaced due to limitations of the battery capacity. In order to compensate for this, it is possible to consider a method of supplying power by connecting sensors to a vehicle battery and a wire. However, according to the wired power supply method, additional wiring work is required for power supply and additional maintenance burden is generated There is a problem.

In addition, according to the conventional method of performing communication with the sensor using the CAN wire communication method, communication wiring work between the sensor and the ECU and communication wiring between the sensor and the OBD are required for building a CAN, There is a problem that the efficiency in terms of network construction and management is deteriorated.

Korean Patent Publication No. 10-2013-0030925

The present invention provides an energy-free visible light-based vehicle electrical field sensor system capable of semi-permanently supplying operating power of various sensors installed in a vehicle and wirelessly receiving information collected by the sensors without using any communication wiring As a technical task.

More particularly, the present invention provides a power supply for operating various sensors installed in an engine room of a vehicle by wirelessly supplying visible light, and receiving status information collected by the sensors by using visible light communication, And to provide an energy-free visible light-based vehicle electric-field sensor system capable of simultaneously reducing the network construction cost and the operation cost for communication with the sensor.

According to an aspect of the present invention, there is provided an energy-free visible light-based vehicle electric vehicle sensor system, which is operated by electric energy generated by photoelectric conversion of light energy supplied from a light source unit and a light source unit, And an information sensing unit.

The light source unit includes a light source module including a light emitting element for emitting the light energy and a light receiving element for receiving an optical signal transmitted from the vehicle state information sensing unit, A light source side communication module for optical communication with the vehicle state information sensing unit, and a control module for controlling operations of the light source module and the light source side communication module.

In the energy-free visible light based vehicle full-field sensor system according to the present invention, the control module constituting the light source unit controls the light energy to be supplied to the vehicle state information sensing unit by operating the light emitting device at a predetermined cycle .

The light source module constituting the light source unit is mounted on a lower surface of a bonnet of the vehicle, and the control module constituting the light source unit may include a bonnet of the vehicle, The light source module is turned on and the light energy is supplied from the light emitting device to the vehicle state information sensing unit.

In the energy-free visible light based vehicle full-field sensor system according to the present invention, the control module constituting the light source unit may be configured such that state information of the vehicle collected through the vehicle state information sensing unit is provided to the vehicle through the light- An engine control unit (ECU), and an on-board diagnostic (OBD) device.

In the energy-free visible light based full-length sensor system according to the present invention, the control module constituting the light source unit may be configured such that, in an inspection mode in which the bonnet of the vehicle is opened in the parking space of the vehicle, The state information of the light source side communication module is automatically transmitted to the self-diagnosis device through the light source side communication module.

In the energy-independent visible light based vehicle full-field sensor system according to the present invention, the control module constituting the light source unit may control the state information of the vehicle, collected through the vehicle state information sensing unit, And the control unit controls the automatic transmission to the engine control unit through the communication module.

In the energy-free visible light-based vehicle full-field sensor system according to the present invention, the control module constituting the light source unit may receive state information of the vehicle collected through the vehicle state information sensing unit when an information transmission request from the portable inspection apparatus is received And controls the light source side communication module to be transmitted to the portable inspection device through the light source side communication module.

In the energy-independent visible light based full-length sensor system according to the present invention, the vehicle state information sensing unit may include a power generation module for generating photoelectric conversion of light energy received from a light emitting device constituting the light source module, into electric energy, A sensor module for sensing status information, and a sensor side communication module for transmitting status information of the vehicle sensed by the sensor module to the light source side communication module.

In the energy-free visible light-based vehicle full-field sensor system according to the present invention, the vehicle state information sensing unit may further include a power storage module for storing electrical energy generated by the power generation module.

In the energy-free visible light-based vehicle full-field sensor system according to the present invention, the vehicle state information sensing unit may include various sensors installed in an engine room of a vehicle.

INDUSTRIAL APPLICABILITY According to the present invention, an energy-free visible light-based vehicle electric-field sensor system capable of semi-permanently supplying operation power of various sensors installed in a vehicle and wirelessly receiving information collected by the sensors without using any communication wiring There is an effect provided.

More specifically, power supply for operating various sensors installed in an engine room of a vehicle is wirelessly supplied in a visible light manner, and status information collected by the sensors can be received using visible light communication, thereby improving efficiency And an energy-free visible light-based vehicle electric-field sensor system capable of simultaneously reducing the network construction cost and the operation cost for communication with the sensor.

1 is a view illustrating an energy-independent visible light based full-length vehicle sensor system according to an exemplary embodiment of the present invention.
2 is a view showing an example of the configuration of each sensor constituting the vehicle condition information sensing unit in the embodiment of the present invention.
FIG. 3 is a view for explaining an example of a concrete operation of the energy-independent visible light based full length vehicle sensor system according to an embodiment of the present invention.

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

1 is a view illustrating an energy-independent visible light based full-length vehicle sensor system according to an exemplary embodiment of the present invention.

Referring to FIG. 1, an energy-free visible light based full length light vehicle sensor system according to an embodiment of the present invention includes a light source unit 10 and a vehicle state information sensing unit 20.

The light source unit 10 is mounted on the lower surface of the bonnet of the vehicle and wirelessly supplies power for operating the vehicle state information sensing unit 20 including various sensors installed in the engine room of the vehicle in a visible light manner, The vehicle state information sensing unit 20 receives the state information of the vehicle obtained through the visible light communication method. The light source unit 10 may further include an engine control unit (ECU) 30, a self-diagnosis device (On- Board Diagnosis, OBD 40, and portable inspection device 50 using a visible light communication method.

For example, the light source unit 10 may include a light source module 110, a light source side communication module 120, and a control module 130.

The light source module 110 includes a function of emitting light energy to the vehicle state information sensing unit 20 and a visible light communication with the vehicle state information sensing unit 20, the ECU 30, the OBD 40, As shown in Fig. The light source module 110 includes a light emitting element and a light receiving element. The light emitting element is controlled by the control module 130 to emit light energy to the vehicle state information sensing unit 20, The ECU 30, the OBD 40, and the portable inspection apparatus 50. The vehicle state information sensing unit 20, the ECU 30, the OBD 40, The light receiving element receives a visible light signal transmitted from the vehicle state information sensing unit 20, the ECU 30, the OBD 40 and the portable inspection apparatus 50, converts the visible light signal into an electric signal, To the receiving unit.

The light source side communication module 120 performs a function for optical communication with the vehicle state information sensing unit 20, the ECU 30, the OBD 40, and the portable inspection apparatus 50. The light source side communication module 120 has a general functional structure for visible light communication and includes a transmitter and a receiver.

The control module 130 controls the operation of the light source module 110 and the light source side communication module 120.

One of the functions of the control module 130 is to charge the vehicle state information sensing unit 20 by causing the light emitting device constituting the light source module 110 to emit light energy toward the vehicle state information sensing unit 20 , The timing of light energy divergence can be adjusted as follows.

For example, the control module 130 constituting the light source unit 10 controls the light emitting devices to be turned on at predetermined periods stored in the memory, so that light energy is supplied from the light emitting devices to the vehicle state information sensing unit 20 .

As another example, in a state where the light source module 110 constituting the light source unit 10 is mounted on the lower surface of the bonnet of the vehicle, the control module 130 constituting the light source unit 10, when the bonnet of the vehicle is opened The light source module 110 may be turned on to control the light energy to be supplied to the vehicle state information sensing unit 20 from the light emitting device.

The other of the functions of the control module 130 controls the communication between the light source side communication module 120 and the vehicle condition information sensing unit 20, the ECU 30, the OBD 40 and the portable inspection device 50 , The concrete control operation thereof can be configured as follows.

The control module 130 configuring the light source unit 10 may be configured such that state information of the vehicle collected through the vehicle state information sensing unit 20 is transmitted to the engine control unit 120 via the light source side communication module 120, (Engine Control Unit, ECU) 30 and a self-diagnosis device (On-Board Diagnosis, OBD, 40). The specific transmission point may be a real time forced transmission mode, A periodic transmission scheme may be used.

As another example, the control module 130 constituting the light source unit 10 may be configured such that in the inspection mode in which the bonnet of the vehicle is opened during the driving of the vehicle, the state information of the vehicle collected through the vehicle state information sensing unit 20 is transmitted to the light- Module 120 to be automatically transferred to the self-diagnosis apparatus. Whether the mode is in the check mode can be determined by whether or not the bonnet is opened. To this end, a separate sensor for detecting the bonnet opening is used.

The control module 130 configuring the light source unit 10 may be configured such that the state information of the vehicle collected through the vehicle state information sensing unit 20 is transmitted to the light source side communication module 120 in the traveling mode in which the vehicle is running To the engine control unit (30). Whether or not the vehicle is running can be determined using the RPM information acquired by the RPM sensor constituting the vehicle condition information sensing unit 20. [

As another example, when the control module 130 configuring the light source unit 10 receives an information transmission request from the portable inspection apparatus 50, the status information of the vehicle collected through the vehicle status information sensing unit 20 is Side communication module 120 to be transmitted to the portable inspection apparatus 50. [0052] FIG.

The vehicle state information sensing unit 20 is operated by electric energy generated by photoelectric conversion of the light energy supplied from the light source unit 10 and senses the state information of the vehicle and transmits the sensed information to the light source unit 10 through visible light communication And transmits the data.

The vehicle state information sensing unit 20 may include various sensors installed in the engine room of the vehicle and may include various sensors including, for example, an RPM sensor, a brake sensor, an acceleration sensor, a temperature sensor, .

Each sensor constituting the vehicle state information sensing unit 20 should basically have a power generation function, an information sensing function, and a visible light communication function.

2, each of the sensors constituting the vehicle state information sensing unit 20 includes a power generation module 210, a power storage module 220, a sensor module 230, and a sensor side communication module 240 ). ≪ / RTI >

The power generation module 210 performs photoelectric conversion of the light energy received from the light emitting elements constituting the light source module 110 to electric energy. For example, the power generation module 210 may be a solar cell or a photo detector.

The power storage module 220 is an energy storage for storing electric energy generated by the power generation module 210.

The sensor module 230 is a sensor body for sensing the state information of the vehicle.

The sensor side communication module 240 is means for transmitting the state information of the vehicle sensed by the sensor module 230 to the light source side communication module 120 provided in the light source unit 10 by using visible light communication.

Hereinafter, an example of a specific operation of the energy-independent visible light based full length light sensor system according to an embodiment of the present invention will be described with reference to FIG.

3, first, in step S10, the control module 130 constituting the light source unit 10 turns on a light emitting element provided in the light source module 110 to detect the vehicle state information sensing unit 20 ) Is performed. Here, the control module 130 controls the light emitting element to turn on at a predetermined cycle so that light energy is supplied from the light emitting element to the vehicle state information sensing unit 20, or when the bonnet of the vehicle is opened, the light source module 110 is turned on So that light energy is supplied to the vehicle state information sensing unit 20 from the light emitting device.

Next, in step S20, a process of generating electric energy by photoelectrically converting the light energy supplied from the light source unit 10 by the power generation module 210 provided in the vehicle state information sensing unit 20 is performed. The power generation module 210 may be a solar cell.

Next, in step S30, a process of storing electric energy generated by the power generation module 210 in the power storage module 220 is performed.

Next, in step S40, the vehicle state information sensing unit 20 detects the state information of the vehicle using the electric energy stored in the power storage module 220 as a power source.

Next, in step S50, the process of transmitting the state information of the vehicle sensed by the vehicle state information sensing unit 20 to the light source unit 10 using the visible light communication method is performed.

In step S60, the light source unit 10 transmits the state information of the vehicle received from the vehicle state information sensing unit 20 to the ECU 30, the OBD 40, and the portable inspection device 50 using the visible light communication method Process is performed. The control operation of the control module 130 in this process may be configured as follows. In one example, the control module 130 receives status information of the vehicle collected through the vehicle status information sensing unit 20 through an engine control unit (ECU) provided in the vehicle through the light source side communication module 120, 30, and On-Board Diagnosis (OBD) 40, and a specific transmission time may be a real time forced transmission mode or a periodic transmission mode in which a predetermined transmission period is used . Alternatively, the control module 130 may determine whether the status information of the vehicle collected through the vehicle status information sensing unit 20 is received through the light source side communication module 120 in the inspection mode in which the bonnet of the vehicle is opened during driving of the vehicle. It can be controlled to be automatically transferred to the diagnostic apparatus. Whether the mode is in the check mode can be determined by whether or not the bonnet is opened. To this end, a separate sensor for detecting the bonnet opening is used. The control module 130 may control the state information of the vehicle collected through the vehicle state information sensing unit 20 to be transmitted to the engine control unit 30 through the light source side communication module 120, As shown in FIG. Whether or not the vehicle is running can be determined using the RPM information acquired by the RPM sensor constituting the vehicle condition information sensing unit 20. [ The control module 130 may determine that the status information of the vehicle collected through the vehicle status information sensing unit 20 is received from the light source side communication module 120 when the information check request is received from the portable inspection device 50. [ To the portable inspection apparatus 50 through the control unit 50. [

As described above in detail, according to the present invention, it is possible to semi-permanently supply operation power of various sensors installed in a vehicle, and to provide energy-independent visible light that can wirelessly receive information collected by these sensors Based vehicle full-length sensor system is provided.

More specifically, power supply for operating various sensors installed in an engine room of a vehicle is wirelessly supplied in a visible light manner, and status information collected by the sensors can be received using visible light communication, thereby improving efficiency And an energy-free visible light-based vehicle electric-field sensor system capable of simultaneously reducing the network construction cost and the operation cost for communication with the sensor.

While the present invention has been described in connection with what is presently considered to be preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. In addition, it is a matter of course that various modifications and variations are possible without departing from the scope of the technical idea of the present invention by anyone having ordinary skill in the art.

10:
20: Vehicle condition information sensing unit
30: Engine Control Unit (ECU)
40: On-Board Diagnosis (OBD)
50: Portable inspection device
110: Light source module
120: Light source side communication module
130: control module
210: power generation module
220: power storage module
230: Sensor module
240: Sensor side communication module

Claims (11)

An energy-independent visible light based vehicle full field sensor system,
A light source; And
And a vehicle state information sensing unit for sensing vehicle state information,
The light source unit
A light source module including a light emitting element for emitting the light energy and a light receiving element for receiving an optical signal transmitted from the vehicle state information sensing unit;
A light source side communication module for optical communication with the vehicle state information sensing unit; And
And a control module for controlling the operation of the light source module and the light source side communication module.
delete The method according to claim 1,
The control module constituting the light source unit
And controls the light emitting element to be supplied to the vehicle state information sensing unit by operating the light emitting element at a predetermined cycle.
The method according to claim 1,
The light source module constituting the light source unit is mounted on the lower surface of the bonnet of the vehicle,
Wherein the control module constituting the light source unit turns on the light source module when the bonnet of the vehicle is opened and controls the light energy to be supplied from the light emitting device to the vehicle state information sensing unit. Electric field sensor system.
The method according to claim 1,
The control module constituting the light source unit
The state information of the vehicle collected through the vehicle state information sensing unit is transmitted to the engine control unit (ECU) and the on-board diagnostic device (OBD) provided in the vehicle through the light source side communication module To the at least one device, so as to be transmitted to at least one device.
6. The method of claim 5,
The control module constituting the light source unit
The control unit controls the state information of the vehicle collected through the vehicle state information sensing unit to be automatically transferred to the self diagnosis apparatus through the light source side communication module in the inspection mode in which the bonnet of the vehicle is opened in the vehicle of the vehicle Energy-based visible light-based vehicle full-field sensor system.
6. The method of claim 5,
The control module constituting the light source unit
Wherein the control unit controls the state information of the vehicle collected through the vehicle state information sensing unit to be automatically transferred to the engine control unit through the light source side communication module in the traveling mode in which the vehicle is running, Vehicle full - field sensor system.
The method according to claim 1,
The control module constituting the light source unit
Wherein the controller is configured to control the state information of the vehicle collected through the vehicle state information sensing unit to be transmitted to the portable inspection apparatus through the light source side communication module when an information transmission request from the portable inspection apparatus is received, Visible Light Based Vehicle Length Sensor System.
The method according to claim 1,
The vehicle state information sensing unit
A sensor module for sensing status information of the vehicle;
A sensor side communication module for transmitting status information of the vehicle detected by the sensor module to the light source side communication module;
A power generation module that generates power by electric energy generated by photoelectric conversion of light energy supplied from the light source unit; And
And a power storage module for storing electrical energy generated by the power generation module.
delete The method according to claim 1,
Wherein the vehicle state information sensing unit comprises various sensors installed in the engine room of the vehicle.
KR1020140055119A 2014-05-08 2014-05-08 Energy independent sensor system for vehicle electric device based on visible light communication KR101537190B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112193186A (en) * 2020-10-16 2021-01-08 北京航天发射技术研究所 Vehicle light state acquisition system based on photoelectric effect, equipment and vehicle

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008128669A (en) * 2006-11-16 2008-06-05 Auto Network Gijutsu Kenkyusho:Kk Automobile fault diagnosis support system, automobile fault information transmitter, and automobile fault information receiver
KR20140050147A (en) * 2012-10-17 2014-04-29 (주)모이텍 A system for cheking vehicles

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008128669A (en) * 2006-11-16 2008-06-05 Auto Network Gijutsu Kenkyusho:Kk Automobile fault diagnosis support system, automobile fault information transmitter, and automobile fault information receiver
KR20140050147A (en) * 2012-10-17 2014-04-29 (주)모이텍 A system for cheking vehicles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112193186A (en) * 2020-10-16 2021-01-08 北京航天发射技术研究所 Vehicle light state acquisition system based on photoelectric effect, equipment and vehicle

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