KR102298542B1 - Vehicle Signal Lamp Control Signal Connection Device Using Wireless Communication - Google Patents

Abstract

The present invention relates to a vehicle traffic light control signal connection device using wireless communication, and more particularly, obtains a vehicle signal light control signal of an ECU of a towing vehicle through an OBD port, and transmits it to a towed vehicle signal control unit through wireless communication to a towing vehicle It relates to a vehicle traffic light control signal connection device that controls so that the traffic light of the towed vehicle and the vehicle traffic light of the towed vehicle operate in synchronization.

Description

Vehicle Signal Lamp Control Signal Connection Device Using Wireless Communication

The present invention relates to a vehicle traffic light control signal connection device using wireless communication, and more particularly, obtains a vehicle signal light control signal of an ECU of a towing vehicle through an OBD port, and transmits it to a towed vehicle signal control unit through wireless communication to a towing vehicle It relates to a vehicle traffic light control signal connection device that controls so that the traffic light of the towed vehicle and the vehicle traffic light of the towed vehicle operate in synchronization.

According to the change of leisure activities, towed vehicles such as caravans and trailers are connected to cars to enjoy camping, water sports, and various types of leisure.

1 shows the state of the towing vehicle 200 for towing such a towed vehicle 300 . As shown in FIG. 1, when the towed vehicle 300 is towed by connecting the towed vehicle 300 to the rear using the towing device 400, the traffic lights 230 (left and right direction indicators, tail lights, brake lights, Since the reversing light, etc.) is obscured by the towed vehicle 300 and invisible, a signal must be displayed using the traffic light 330 provided in the towed vehicle 300 . To this end, the ECU (Electronic Control Unit, Electronic Control Unit) of the towing vehicle 200 is connected to the battery 250 of the towing vehicle 200 , and the traffic light 230 of the towing vehicle 200 and the towed vehicle 300 are connected to the towing vehicle 200 . ) it is necessary to control the traffic light 330 .

2 is a connector for electrically connecting the conventional towing vehicle 200 and the towed vehicle 300 is shown. In this conventional connection method, the traffic lights 230 and 330 of the tow vehicle 200 and the towed vehicle 300 and the battery were directly connected 1:1 through a connector. That is, the towed vehicle 300 connected to the tow vehicle 200 was a method in which a battery and each signal light (left and right turn indicator, tail light, brake light, reversing light, etc.) were directly connected by using a connector.

In this way, when the tow vehicle 200 and the towed vehicle 300 are directly connected 1:1, the power and the wire are connected to the connector mounted on the outside of the towed vehicle 200 regardless of whether the towed vehicle 300 is mounted or not. It is always exposed and there is a risk of damage due to battery discharge and short circuit of the towing vehicle 200 .

In addition, since there is no power separation and protection device for the towed vehicle 300, there is also a risk of malfunction due to overcurrent according to the consumption current of the traffic light.

In addition, wiring work for connecting the traffic light 230 of the tow vehicle 200 and the traffic light 330 of the towed vehicle 300 is also very cumbersome.

The present invention obtains the vehicle signal light control signal of the ECU of the towing vehicle through the OBD port, transmits it to the towed vehicle signal control unit through wireless communication, and controls the traffic light of the towing vehicle and the vehicle signal light of the towed vehicle to operate in synchronization. An object of the present invention is to provide a traffic light control signal connection device.

In order to solve the above problems, the present invention provides a vehicle traffic light control signal connection device, comprising: a first wireless communication device that receives a signal from an ECU for controlling a traffic light of a towing vehicle and transmits a signal to another device through wireless communication; and a towed vehicle signal control unit receiving a signal for controlling a traffic light of the towed vehicle and controlling the towed vehicle's signal light to operate in the same manner as that of the towing vehicle; Including, wherein the towed vehicle signal control unit, a second wireless communication device capable of sending and receiving a signal through wireless communication with another device; and a main control unit receiving a signal from the second wireless communication device and controlling the traffic lights of the towed vehicle. Including, wherein the towed vehicle signal control unit is connected to the battery of the towing vehicle to receive power, based on the signal received from the first wireless communication device to control the supply of power to the traffic light of the towed vehicle, vehicle signal light A control signal connection device is provided.

In the present invention, the first wireless communication unit may be connected to the OBD port of the towing vehicle to receive a signal from the ECU.

In the present invention, the towed vehicle signal control unit may be disposed on the tow vehicle and electrically connected to a signal light of the towed vehicle through a connector.

In the present invention, the towed vehicle signal control unit may be disposed on the towed vehicle and electrically connected to a battery of the towed vehicle through a connector.

In the present invention, the main control unit, the operation control unit for opening and closing the connected switch according to a signal for controlling the traffic light of the towing vehicle; an operation signal interface unit receiving a signal from the second wireless communication unit and transmitting the signal to the operation control unit; a power interface unit receiving power from the battery of the towing vehicle and supplying power to the switch; and an external interface unit connecting the switch opened and closed according to the control of the operation control unit and the traffic light of the towed vehicle. may include.

In the present invention, the main control unit, an abnormality detection unit that is controlled through the operation control unit by detecting the power supplied to the traffic light of the towed vehicle to detect whether there is an abnormality; may further include.

In the present invention, the towed vehicle signal control unit, an overcurrent detection unit for detecting a voltage or current of power supplied to the towed vehicle through the towed vehicle signal control unit from the battery of the towed vehicle; The method further includes, wherein the overcurrent detecting unit may cut off the power supplied to the towed vehicle when an abnormality is detected in the voltage or current of the power supplied to the towed vehicle.

In the present invention, when an abnormality is detected by the overcurrent detecting unit, the second wireless communication unit may transmit an abnormality signal to a previously registered terminal of the user.

According to an embodiment of the present invention, by transmitting the control signal of the traffic light of the towing vehicle to the towed vehicle, the traffic light of the towing vehicle and the traffic light of the towed vehicle can be synchronized and operated.

According to an embodiment of the present invention, it is possible to exhibit the effect of simplifying the wiring for controlling the vehicle traffic lights by transmitting the signal of the tow vehicle to the towed vehicle through wireless communication.

According to an embodiment of the present invention, by connecting the first wireless communication device to the OBD port, it is possible to exert the effect of easily extracting and transmitting the vehicle control signal from the ECU.

According to an embodiment of the present invention, since the traffic light of the towing vehicle and the traffic light of the towed vehicle are electrically separated, it is possible to exert the effect of controlling the traffic light of the towed vehicle regardless of whether the traffic light of the towing vehicle is malfunctioning.

According to an embodiment of the present invention, it is possible to exert the effect of determining whether the traffic light of the towed vehicle is normally controlled by detecting whether there is an abnormality by detecting the power transmitted to the traffic light of the towed vehicle.

According to an embodiment of the present invention, it is possible to exhibit the effect of safely managing the power of the towed vehicle by detecting the voltage or current of the power supplied to the towed vehicle and blocking the supplied power when an abnormality is detected.

According to an embodiment of the present invention, when an abnormality is detected by detecting the voltage or current of the power supplied to the towed vehicle, the abnormal signal is transmitted to the user's terminal through wireless communication so that the user located inside the vehicle can detect the abnormality. can be effective.

1 is a diagram schematically illustrating a state in which a vehicle traffic light signal of a towing vehicle and a towed vehicle is connected.
2 is a diagram schematically illustrating a structure of a connector for signal connection between a vehicle traffic light of a conventional tow vehicle and a towed vehicle.
3 is a diagram schematically illustrating the configuration of a vehicle traffic light control signal connection device according to an embodiment of the present invention.
4 is a diagram schematically illustrating an OBD port of a towing vehicle and a first wireless communication device according to an embodiment of the present invention.
5 is a diagram schematically showing the configuration of a towed difference signal control unit according to an embodiment of the present invention.
6 is a diagram schematically illustrating an internal configuration of a main control unit according to an embodiment of the present invention.
7 is a diagram schematically illustrating a connection according to an arrangement position of a towed vehicle signal control unit according to an embodiment of the present invention.
8 is a diagram schematically illustrating a connection part of a tow vehicle and a towed vehicle according to an embodiment of the present invention.
9 is a diagram schematically illustrating an internal configuration of a towed vehicle signal control unit according to an embodiment of the present invention.
10 is a diagram schematically illustrating an operation of an overcurrent detection unit according to an embodiment of the present invention.

Hereinafter, various embodiments and/or aspects are disclosed with reference to the drawings. In the following description, for purposes of explanation, numerous specific details are set forth to provide a thorough understanding of one or more aspects. However, it will also be recognized by one of ordinary skill in the art that such aspect(s) may be practiced without these specific details. The following description and accompanying drawings set forth in detail certain illustrative aspects of one or more aspects. These aspects are illustrative, however, and some of the various methods in principles of the various aspects may be employed, and the descriptions set forth are intended to include all such aspects and their equivalents.

Further, various aspects and features will be presented by a system that may include a number of devices, components and/or modules, and the like. It is also noted that various systems may include additional devices, components, and/or modules, etc. and/or may not include all of the devices, components, modules, etc. discussed with respect to the drawings. must be understood and recognized.

As used herein, “embodiment”, “example”, “aspect”, “exemplary”, etc. may not be construed as an advantage or advantage in any aspect or design described above over other aspects or designs. . The terms '~part', 'component', 'module', 'system', 'interface', etc. used below generally mean a computer-related entity, for example, hardware, hardware A combination of and software may mean software.

Also, the terms "comprises" and/or "comprising" mean that the feature and/or element is present, but excludes the presence or addition of one or more other features, elements and/or groups thereof. should be understood as not

Also, terms including an ordinal number, such as first, second, etc., may be used to describe various elements, but the elements are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component. and/or includes a combination of a plurality of related listed items or any of a plurality of related listed items.

In addition, in the embodiments of the present invention, unless otherwise defined, all terms used herein, including technical or scientific terms, are generally understood by those of ordinary skill in the art to which the present invention belongs. have the same meaning as Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in an embodiment of the present invention, an ideal or excessively formal meaning is not interpreted as

3 is a diagram schematically illustrating the configuration of a vehicle traffic light control signal connection device according to an embodiment of the present invention.

Referring to FIG. 3 , the vehicle traffic light control signal connection device according to an embodiment of the present invention receives a signal from the ECU 210 that controls the traffic light 230 of the towing vehicle 200 and transmits a signal to another device through wireless communication. a first wireless communication device for transmitting a signal (100a); And a towed vehicle signal control unit that receives a signal for controlling the traffic light 230 of the towing vehicle 200 and controls the traffic light 330 of the towed vehicle 300 to operate in the same manner as the traffic light 230 of the towing vehicle 200 (100b); may include.

A general towing vehicle 200 controls electronic equipment provided through the ECU 210 of the vehicle. The provided traffic light 230 is also controlled by the ECU 210 . On the other hand, the battery 250 provided in the towing vehicle 200 supplies power to the traffic light 230 so that the traffic light 230 can be turned on.

The first wireless communication device 100a of the vehicle traffic light control signal connection device according to an embodiment of the present invention is connected to the ECU 210 to receive a signal and to control the traffic light 330 of the towed vehicle 300. The signal is transmitted through wireless communication.

At this time, in an embodiment of the present invention, the first wireless communication device 100a is connected to an On-Board Diagnostics (OBD) port 220 of the towing vehicle 200 to input a signal from the ECU 210 . can receive

OBD is a standardized diagnostic system as a device for diagnosing vehicle status and reporting results. Recently produced automobiles are equipped with sensors for various measurement and control, and these devices are controlled by ECU, and ECU information is used for vehicle diagnosis for users through OBD. The OBD port 220 is a connector for connecting an external device through the OBD. A user may extract a signal from the ECU 210 through the OBD port 220 or transmit a signal to the ECU 210 .

In an embodiment of the present invention, the ECU 210 and the first wireless communication unit 100a are not connected through an additional wiring, and the first wireless communication unit ( By connecting 100a), a signal for controlling the traffic light 230 can be easily extracted from the ECU 210 without cost and effort for wiring.

In an embodiment of the present invention, the towed vehicle signal control unit 100b includes a second wireless communication device 110 capable of sending and receiving signals through wireless communication with other devices; and a main control unit 120 receiving a signal from the second wireless communication unit 110 and controlling the traffic lights of the towed vehicle; may include.

Referring to FIG. 3 , the towed vehicle signal control unit 100b according to an embodiment of the present invention is connected to the battery 250 of the towing vehicle 200 to receive power, and from the first wireless communication device 100a Based on the received signal, the supply of power to the traffic light 330 of the towed vehicle 300 is controlled to control the blinking of the traffic light 330 of the towed vehicle 300 .

In more detail, the second wireless communication unit 110 receives a signal for controlling the traffic light 230 of the towing vehicle 200 by performing communication with the first wireless communication unit 100a, and the main control unit 120 and the main control unit 120 selectively supplies or cuts the power supplied from the battery 250 of the towed vehicle 200 to the traffic light 330 of the towed vehicle 300 to thereby cut off the towed vehicle 300 ) to control the blinking of the traffic light 330 .

By such a configuration, the traffic light 230 of the towed vehicle 200 and the traffic light 330 of the towed vehicle 300 are not directly electrically connected, but the traffic light 330 of the towed vehicle 300 is the towing It can be controlled in the same way as the traffic light 230 of the vehicle 200 . In addition, by transmitting a signal for controlling the traffic light 330 of the towed vehicle 300 through wireless communication, it is possible to reduce the cost and effort for wiring.

4 is a diagram schematically illustrating an OBD port of a towing vehicle and a first wireless communication device according to an embodiment of the present invention.

Figure 4 (a) shows the state of the OBD port 220 provided in the fuse box of a general vehicle. In a currently manufactured vehicle, the standardized OBD port 220 is provided in a fuse box provided on the lower left side of the driver's seat of the vehicle as shown in FIG. 4 or provided below the central ashtray.

4 (b) shows an embodiment of the first wireless communication device 100a that can be coupled to the OBD port 220 as described above. The first wireless communication device 100a is provided with a connector that can be coupled to the OBD port 220, and can be fixed to the vehicle by being coupled to the connector.

The first wireless communication device 100a can extract necessary information through the OBD port 220, and transmits it to the second wireless communication device 110 through wireless communication so that the main controller 120 controls the towed vehicle. A traffic light 330 of the amount 300 can be controlled.

In the case of the currently used OBD-II standard, the connector standard is unified, but the interface method is different for each vehicle manufacturer and vehicle model. Currently, vehicles that support OBD use three standard protocols, specifically five standard protocols. The three signal methods are VPW-PWM (SAE-J1850), CAN communication (ISO15765, SAE-J2234), and ISO method (ISO1941-2, ISO14230-4). The protocol is different for each vehicle maker, even for each model of vehicle. Accordingly, the first wireless communication device 100a may use a preset interface method to obtain a signal from the ECU 210 . At this time, the first wireless communication unit 100a may acquire a signal from the ECU 210 according to a fixed interface method, and preferably detects the interface method and changes the interface method to the interface of the mounted vehicle. It is also possible to obtain a signal from the ECU 210 in accordance with the above.

The first wireless communication device 100a may obtain information from the ECU 210 through the OBD port 220 and extract necessary information (control information of vehicle traffic lights) from among them. The information thus obtained is transmitted to the second wireless communication unit 110 through wireless communication so that the towed vehicle signal control unit 100b can control the traffic light 330 of the towed vehicle 300 .

5 is a diagram schematically showing the configuration of a towed difference signal control unit according to an embodiment of the present invention.

Referring to FIG. 5 , the towed vehicle signal control unit 100b according to an embodiment of the present invention may include a second wireless communication unit 110 and a main control unit 120, and the main control unit 120 is a towing vehicle. an operation control unit 123 for opening and closing the connected switch 123a according to a signal for controlling the signal light 230 of 200; an operation signal interface unit 121 that receives a signal from the second wireless communication unit 110 and transmits the signal to the operation control unit 123; a power interface unit 122 receiving power from the battery 250 of the towing vehicle 200 and supplying power to the switch; and an external interface unit 124 for connecting the switch opened and closed according to the control of the operation control unit 123 and the traffic light 330 of the towed vehicle 300; may include.

The operation signal interface unit 121 derives information for controlling the traffic light 330 of the towed vehicle 300 based on the information received from the second wireless communication unit 110 . The control information of the traffic light 230 of the towing vehicle 200 collected through the OBD port 220 may be information on the control state of the traffic light 230, and the operation signal interface unit 121 corresponds to this. converted into control information of the traffic light 330 of the towed vehicle 300 and the operation control unit 123 controls the traffic light 330 of the towed vehicle 300 based thereon.

The power interface unit 122 is connected to the battery 250 of the towing vehicle 200 to receive power from the battery 250, and to supply the supplied power to the traffic light 330 of the towed vehicle 300. Distribute to each supply. The power distributed in this way is selectively supplied to the traffic light 330 of the towed vehicle 300 by a switch of the operation control unit 123 to be turned on and off.

The operation control unit 123 controls the power supplied to the signal light 330 of the towed vehicle 300 by opening and closing the switch according to the signal received from the operation signal interface unit 121 . An electrical switching element is used in such a switch to electrically open and close the switch according to a signal received from the operation signal interface unit 121 .

The external interface unit 124 connects power supplied through a switch opened and closed by the operation control unit 123 to the traffic light 330 of the towed vehicle 300 , respectively. Such an external interface unit 124 is provided on a circuit board on which the towed vehicle signal control unit 100b is configured, or a case in which the towed vehicle signal control unit 100b is built, through a wire, etc. The signal light of the towed vehicle 300 ( 330) may be connected. Preferably, the external interface unit 124 has a standardized connector so that it can be easily connected to the traffic light 330 of the towed vehicle 300 .

6 is a diagram schematically illustrating an internal configuration of a main control unit according to an embodiment of the present invention.

The main control unit 120 is controlled through the operation control unit 123, and detects the power supplied to the traffic light 330 of the towed vehicle 300, an abnormality detection unit 123.1 for detecting whether there is an abnormality; may further include.

6 shows an example of the internal configuration of the operation control unit 123 . Referring to FIG. 6 , the power interface unit 122 receives power from the battery 250 of the towing vehicle 200 , and uses the plurality of switches 123a , 123b , 123c ) of the operation control unit 123 ( 123d) (123e). The switch may be provided as many as the number of traffic lights 330 of the towed vehicle 300 .

The external interface unit 124 transmits power controlled through a plurality of the switches 123a, 123b, 123c, 123d, and 123e to a plurality of traffic lights 331, 332, (332) of the towed vehicle 300 ( 333, 334, and 335 are connected to each other so that the traffic light 330 can be controlled. In an embodiment of the present invention, the plurality of traffic lights 331, 332, 333, 334, and 335 may be a right turn indicator, a left turn indicator, a tail light, a brake light, and a fog light of the towed vehicle 300, respectively. have.

The operation signal interface unit 121 controls the plurality of switches 123a, 123b, 123c, 123d, and 123e, respectively, based on the signal received from the second wireless communication unit 110 .

With this configuration, each of the plurality of traffic lights 331 , 332 , 333 , 334 , 335 of the towed vehicle 300 can be controlled based on the signal received from the second wireless communication unit 110 . have.

At this time, the abnormality detection unit 123.1 may detect the power supplied to the traffic light 330 of the towed vehicle 300 . As shown in FIG. 6 , the abnormality detection unit 123.1 detects the power coming from the first switch 123a controlled by the operation signal interface unit 121 and detects the power supplied to the first signal light 331 . abnormalities can be detected.

At this time, whether the power supply is abnormal may be whether the voltage and current of the power supplied to the signal light 331 are abnormal, or whether the power supply controlled according to the opening and closing of the switch 123a is abnormal in connection or short circuit. . That is, the abnormality detection unit 123.1 may detect an abnormality when an overcurrent is supplied to the signal light 331, or close the switch 123a to turn on the signal light 331, but power is not supplied. Anomalies may be detected. That is, in an embodiment of the present invention, it is possible to determine whether the traffic light 331 is operating normally through the abnormality detection unit 123.1.

On the other hand, although FIG. 6 shows that only the first switch 123a is provided with the abnormality detection unit 123.1, the present invention provides an abnormality detection unit in each of all the switches 123a, 123b, 123c, 123d, and 123e. 123.1 may be provided, and each of such anomaly detection units 123.1 may determine whether each of the connected traffic lights 331 , 332 , 333 , 334 , 335 operates normally.

7 is a diagram schematically illustrating a connection according to an arrangement position of a towed vehicle signal control unit according to an embodiment of the present invention.

7(a) and 7(b) show a first embodiment and a second embodiment of the present invention, respectively.

In the embodiment of FIG. 7 ( a ), the towed vehicle signal control unit 100b is disposed in the towed vehicle 200 and is electrically connected to the traffic light 330 of the towed vehicle 300 through a connector 500 .

On the other hand, in the embodiment of Fig. 7 (b), the towed vehicle signal control unit 100b is disposed in the towed vehicle 300 and is electrically connected to the battery 250 and the connector 500 of the towed vehicle 200 through a connector 500 do.

7, the tow vehicle 200 and the towed vehicle 300 are physically coupled through a towing device 400 so that the tow vehicle 200 can tow the towed vehicle 300, and , the towing vehicle 200 and the towed vehicle 300 may be electrically connected by a connector 500 provided in the towing device 400 .

At this time, in the embodiment as shown in Fig. 7 (a), the towed vehicle signal control unit 100b is disposed in the towing vehicle 200, and the signal from the ECU 210 is transmitted wirelessly from the first wireless communication unit 100a. A signal that is received through communication and controls each traffic light 330 of the towed vehicle 300 by the main controller 120 is transmitted through the connector 500 . Accordingly, the connector 500 includes a plurality of connecting pins to connect each signal light 330 of the towed vehicle 300 to a signal line of the external interface unit 120 of the main control unit 120 .

On the other hand, in the embodiment shown in FIG. 7B , the towed vehicle signal control unit 100b is disposed in the towed vehicle 300 , and the signal from the ECU 210 is wirelessly communicated from the first wireless communication unit 100a. A signal for controlling each traffic light 330 of the towed vehicle 300 by the main control unit 120 by the power of the battery 250 of the towing vehicle 200 connected through the connector 500 It is generated and transmitted to the traffic light 330 of the towed vehicle 300 . Therefore, the vehicle traffic light control signal connection device of the present invention can be operated only by connecting the power of the battery 250 through the connector 500 .

The embodiment as shown in Fig. 7 (a) may be used to connect the conventional towed vehicle 300 and the towed vehicle 200 . When the conventional towed vehicle 300 is manufactured, the wiring for controlling the traffic light 330 is connected to the connector 500, and the user arranges the towed vehicle signal control unit 100b in the towing vehicle 200, and the By connecting the towed vehicle signal control unit 100b and the connector 500, the traffic light 330 of the towed vehicle 300 may be controlled.

On the other hand, the embodiment as shown in (b) of Figure 7 can be used in the towed vehicle 300 equipped with the towed vehicle signal control unit 100b according to an embodiment of the present invention from the time of manufacture. By arranging the towed vehicle signal control unit 100b in advance inside the towed vehicle 300 and connecting the wiring, the user can conveniently connect only the wiring from the battery 250 of the towed vehicle 200 to the connector 500 It is possible to control the traffic light 330 of the towed vehicle 300 .

8 is a diagram schematically illustrating a connection part of a tow vehicle and a towed vehicle according to an embodiment of the present invention.

Referring to FIG. 8 , it is possible to confirm the appearance of the towing device 400 and the connector 500 of the tow vehicle 200 and the towed vehicle 300 as described in FIG. 7 .

A ball mount 400a of the towing device 400 may be mounted on the rear side of the towing vehicle 200 to tow the towed vehicle 300 as in FIG. A first connector 500a to be connected to may be mounted.

In Figure 8, the standard 13-pin re-connector 500a is shown. As described above, the connector is standardized and the number and position of the provided pins are fixed, and it is coupled with the connector of the towed vehicle 300 to supply a signal and power. In addition to the 13-pin connector shown, other types of connectors such as 7-pin may be used. The user may select the first connector 500a according to the specification of the connector provided in the towed vehicle 300 and mount it on the towed vehicle 200 . At this time, the first connector 500a may be provided with a cover for preventing the first connector 500a from being exposed to the outside when the towed vehicle 300 is not coupled.

On the other hand, a ball coupler 400b for coupling with the tow vehicle 200 is provided on the front side of the towed vehicle 300 as shown in FIG. 8(b), and the first connector 500a of the tow vehicle 200 is provided. ) coupled to a second connector (500b) that can be electrically connected is provided.

The user mounts the ball coupler 400b on the ball mount 400a so that the towing vehicle 200 can tow the towed vehicle 300, and connects the second connector 500b to the first connector. By coupling to 500a, the tow vehicle 200 and the towed vehicle 300 are electrically connected to supply power to the towed vehicle 300 and the traffic light 330 of the towed vehicle 300 can be controlled. can make it

9 is a diagram schematically illustrating an internal configuration of a towed vehicle signal control unit according to an embodiment of the present invention.

Referring to FIG. 9 , the towed vehicle signal control unit 100b according to an embodiment of the present invention includes the second wireless communication unit 110 and the main control unit 120 described above, and a battery 250 of the tow vehicle 200 . ) from the overcurrent detection unit 130 for detecting the voltage or current of the power supplied to the towed vehicle 300 through the towed vehicle signal control unit 100b; may further include.

In the case of equipment such as a caravan among the towed vehicle 500, it is possible to receive power from the battery 250 of the tow vehicle 200 so that home appliances such as air conditioners and refrigerators provided therein can operate, and also It is possible to provide an outlet, etc., so that an internal user can connect various devices to use electricity.

As described above, since the towed vehicle 300 can use not only the traffic light 330 but also various home appliances, there is a high possibility that a problem such as overcurrent occurs due to a large amount of power used. Therefore, in an embodiment of the present invention, the overcurrent detection unit 130 is provided to solve the problem caused by the overcurrent.

In an embodiment of the present invention, the overcurrent detection unit 130 may cut off the power supplied to the towed vehicle 300 when an abnormality is detected in the voltage or current of the power supplied to the towed vehicle 300 . In this way, when an abnormality is detected in the power supply, the battery 250 of the towing vehicle 200 is protected by cutting off the power and at the same time, problems (fire, short circuit, etc.) that may occur in the towed vehicle 300 can be prevented. there will be

Meanwhile, in an embodiment of the present invention, when an abnormality is detected in the overcurrent detecting unit 130 , the second wireless communication unit 120 may transmit an abnormality signal to the terminal 20 of the pre-registered user 10 . In an embodiment of the present invention, since the second wireless communication device 120 can perform wireless communication, information can be transmitted to the terminal 20 of the user 10 capable of wireless communication.

10 is a diagram schematically illustrating an operation of an overcurrent detection unit according to an embodiment of the present invention.

In the embodiment shown in FIG. 10 , the user 10 is driving the towing vehicle 200 . Meanwhile, the first wireless communication unit 100a and the towed vehicle signal control unit 100b of the vehicle traffic light control signal connection device according to an embodiment of the present invention are also provided.

At this time, when an abnormality is detected in the overcurrent detection unit 130 of the towed difference signal control unit 100b, the second wireless communication unit 120 of the towed vehicle signal control unit 100b is transmitted to the terminal 20 of the user 10. An abnormal signal can be transmitted. Upon receiving such an abnormal signal, the terminal 20 may display the abnormal signal to the user 10 , and the user 10 may park the tow vehicle 200 in a parking space, etc. to take action.

Meanwhile, in an embodiment of the present invention, the second wireless communication device 110 may transmit the abnormality detection result of the abnormality detection unit 123.1 as shown in FIG. 6 to the terminal 20 of the user 10 . In addition, the terminal 20 may display the received abnormality detection result of the abnormality detection unit 123.1 to the user 10 . That is, the user 10 can monitor whether the traffic light 330 of the towed vehicle 300 is operating normally using a wireless device such as a smart phone by the signal transmitted by the second wireless communication device 110 . do.

On the other hand, in an embodiment of the present invention, the second wireless communication device 110 not only directly transmits the abnormal signal to the terminal 20 of the user 10, but also transmits the abnormal signal to the first wireless communication device 100a. Thus, the first wireless communication device 100a can transmit an abnormal signal to the terminal 20 of the user 10 .

This is to extend the range of wireless communication by transmitting the abnormal signal through a plurality of wireless communication devices, and to allow the terminal 20 of the user 10 to more easily receive the abnormal signal.

On the other hand, even when the user 10 is not driving, that is, when the user 10 is located inside the caravan that is the towed vehicle 300 or is located in the vicinity of the tow vehicle 200 . Similarly, by transmitting an abnormal signal to the terminal 20 of the user 10 through the wireless communication of the first wireless communication device 100a or the second wireless communication device 110, the user 10 can check the abnormality. can do.

According to an embodiment of the present invention, by transmitting the control signal of the traffic light of the towing vehicle to the towed vehicle, the traffic light of the towing vehicle and the traffic light of the towed vehicle can be synchronized and operated.

According to an embodiment of the present invention, it is possible to achieve the effect of simplifying the wiring for controlling the vehicle traffic lights by transmitting the signal of the tow vehicle to the towed vehicle through wireless communication.

According to an embodiment of the present invention, by connecting the first wireless communication device to the OBD port, it is possible to exert the effect of easily extracting and transmitting the vehicle control signal from the ECU.

According to an embodiment of the present invention, since the vehicle signal light of the towing vehicle and the vehicle signal light of the towed vehicle are electrically separated, the effect of controlling the vehicle traffic light of the towed vehicle regardless of whether the vehicle signal light of the towing vehicle is malfunctioning can be exhibited have.

According to an embodiment of the present invention, it is possible to exert the effect of determining whether the vehicle traffic light of the towed vehicle is normally controlled by detecting whether there is an abnormality by detecting the power transmitted to the vehicle signal light of the towed vehicle.

According to an embodiment of the present invention, it is possible to exhibit the effect of safely managing the power of the towed vehicle by detecting the voltage or current of the power supplied to the towed vehicle and blocking the supplied power when an abnormality is detected.

According to an embodiment of the present invention, when an abnormality is detected by detecting the voltage or current of the power supplied to the towed vehicle, the abnormal signal is transmitted to the user's terminal through wireless communication so that the user located inside the vehicle can detect the abnormality. can be effective.

As described above, although the embodiments have been described with reference to the limited embodiments and drawings, various modifications and variations are possible from the above description by those skilled in the art. For example, the described techniques are performed in a different order than the described method, and/or the described components of the system, structure, apparatus, circuit, etc. are combined or combined in a different form than the described method, or other components Or substituted or substituted by equivalents may achieve an appropriate result. Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

Claims (8)

As a vehicle traffic light control signal connection device,
a first wireless communication device that receives a signal from the ECU that controls the traffic light of the towing vehicle and transmits the signal to another device through wireless communication; and
a towed vehicle signal control unit receiving a signal for controlling a traffic light of a towed vehicle and controlling the towed vehicle's signal light to operate in the same manner as that of the towed vehicle; including,
The towed difference signal control unit,
a second wireless communication device capable of sending and receiving signals through wireless communication with other devices; and
a main control unit receiving a signal from the second wireless communication unit and controlling the traffic lights of the towed vehicle; including,
The towed difference signal control unit,
It is connected to the battery of the towing vehicle to receive power, and controls the supply of power to the traffic lights of the towed vehicle based on the signal received from the first wireless communication device,
The first wireless communication device,
A connector that can be coupled to the OBD port is provided and is connected to the OBD port of the towing vehicle to receive a signal from the ECU,
The first wireless communication device,
By detecting the interface method of the ECU and changing the interface method, a signal is obtained from the ECU according to the interface of the vehicle to be installed,
The main control unit,
an operation control unit for opening and closing a connected switch according to a signal for controlling a traffic light of a towing vehicle;
an operation signal interface unit receiving a signal from the second wireless communication unit and transmitting the signal to the operation control unit;
a power interface unit receiving power from the battery of the towing vehicle and supplying power to the switch;
an external interface unit for connecting a switch opened and closed according to the control of the operation control unit and a signal light of the towed vehicle; and
an abnormality detection unit which is controlled through the operation control unit and detects whether there is an abnormality by sensing power supplied to a traffic light of the towed vehicle; including,
The towed difference signal control unit,
an overcurrent detection unit for detecting a voltage or current of power supplied from the battery of the towed vehicle to the towed vehicle through the towed vehicle signal control unit; further comprising,
The overcurrent detecting unit cuts off the power supplied to the towed vehicle when an abnormality is detected in the voltage or current of the power supplied to the towed vehicle,
The abnormality detection unit is disposed between the switch for each signal light and the external interface unit, and detects whether power supplied to the corresponding signal light is abnormal by detecting power coming from the switch.
delete The method according to claim 1,
The towed difference signal control unit,
A vehicle traffic light control signal connection device disposed in the towing vehicle and electrically connected to a traffic light of the towed vehicle through a connector.
The method according to claim 1,
The towed difference signal control unit,
A vehicle traffic light control signal connection device disposed in the towed vehicle and electrically connected to a battery and a connector of the towed vehicle.
delete delete delete The method according to claim 1 ,
The second wireless communication device,
When an abnormality is detected by the overcurrent detection unit, the vehicle traffic light control signal connection device for transmitting an abnormality signal to a previously registered user terminal.

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