WO2015167075A1 - Electronic device for vehicle - Google Patents
Electronic device for vehicle Download PDFInfo
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- WO2015167075A1 WO2015167075A1 PCT/KR2014/007063 KR2014007063W WO2015167075A1 WO 2015167075 A1 WO2015167075 A1 WO 2015167075A1 KR 2014007063 W KR2014007063 W KR 2014007063W WO 2015167075 A1 WO2015167075 A1 WO 2015167075A1
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- voltage
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- operation information
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D41/00—Fittings for identifying vehicles in case of collision; Fittings for marking or recording collision areas
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D9/00—Recording measured values
Definitions
- the present invention relates to a vehicle electronic device, and more particularly, to a vehicle electronic device capable of detecting and recording various operation state information of a vehicle without adding a separate signal line or connector in detecting an operation state or operation history of the vehicle. .
- a black box mounted on an airplane is a device that stores the operating state of the plane at the moment of an accident, the physical state of the operator, and voice data exchanged between the operators at the moment of an accident in an internal memory. So, if you collect and analyze a black box after an accident, you can trace back the state of the moment.
- the vehicle black box is a device for obtaining information necessary to determine how the accident occurred when the accident occurred while driving the vehicle.
- the black box for a vehicle not only records and records various situations occurring while the vehicle is running, but also monitors whether a vehicle burns out through the always recording mode even in a parking state.
- a vehicle electronic device such as a black box uses a power connector having two signal lines (battery voltage and ground voltage) in addition to one signal line for determining an operation state of the vehicle.
- the one signal line is used to determine the state of the accessory power supply, but may also be used to determine whether the brake light is blinking.
- the present invention provides a vehicle electronic device capable of detecting and recording various operating state information of a vehicle without detecting a separate signal line or connector in hardware in detecting the operating state or operation history of the vehicle. To provide.
- the present invention comprises a connector for receiving two or more operation information signals from the vehicle, and outputs signals of different voltages corresponding to the respective operation information signals;
- a voltage sensing unit sensing a voltage of an output signal of the first output terminal of the connector;
- a controller configured to detect operation information of the vehicle based on the voltage detected by the voltage detector and store the operation information of the vehicle.
- the present invention further includes a reference resistor installed between the first output terminal and the ground terminal of the connector, wherein the voltage sensed by the voltage sensing unit is determined by voltage distribution between the connector and the reference resistor. .
- the connector includes two or more resistors each connected to a plurality of input terminals to which the two or more operation information signals are respectively input, wherein the two or more resistors are connected in parallel to the reference resistance and the resistance values are different from each other. It features.
- the control unit when the combined resistance of the two or more resistors included in the connector is the minimum, the voltage of the output signal of the first output terminal of the connector as a reference voltage, the output voltage of the first output terminal and the reference And detecting operation information of the vehicle by a ratio between voltages.
- control unit is characterized in that for detecting the operation information of the vehicle by the ratio between the voltage sensed by the voltage sensing unit and the battery voltage of the vehicle.
- the connector further includes a second output terminal for outputting a battery voltage from the vehicle, and a third output terminal for outputting a ground voltage from the vehicle, wherein the vehicle electronics device is connected to the second output terminal; And a second resistor connected between the first resistor and the third output terminal, wherein the controller is configured to adjust the battery voltage of the vehicle by the voltage divided by the first resistor and the second resistor. It is characterized by judging.
- the two or more operation information signals are characterized in that it comprises at least a vehicle accessory voltage signal, a brake light flashing information signal, a lane change alarm signal.
- the voltage sensing unit may be an analog-digital converter for digitally converting a voltage of an output signal of the first output terminal and outputting the digital signal to the controller.
- the vehicle electronic device is a vehicle black box for recording the image information including the driving state of the vehicle and various operation information of the vehicle.
- the present invention converts the operation information signal into a battery voltage or an open state voltage and provides it to the connector when two or more operation information signals inputted from the vehicle are input to the battery voltage or the ground voltage according to whether each signal is activated. Characterized in that it further comprises a signal conversion unit.
- the electronic device for a vehicle uses a voltage distribution action by a plurality of resistors having different resistance values without adding a separate signal line or connector in hardware in detecting an operation state or operation history of the vehicle. Status information can be detected and recorded, respectively, so that the operation history of the vehicle can be accurately grasped in case of an accident in the future.
- An electronic device for a vehicle according to the present invention has an advantage in that it can be implemented by simply adding a resistor and performing software processing without additionally installing an expensive separate analyzer.
- FIG. 1 is a block diagram illustrating a configuration of an electronic device for a vehicle according to an exemplary embodiment of the present disclosure.
- FIG. 3A is a table illustrating various ratio information including a voltage sensed by a voltage sensing unit according to each operation information signal input from a vehicle in this embodiment.
- 3B is a graph illustrating a transition of the voltage detected by the voltage detector according to each operation information signal input from the vehicle.
- FIG. 1 is a block diagram showing a configuration of an electronic device for a vehicle according to an embodiment of the present invention
- FIG. 2 is a diagram showing a configuration of a connector included in the present embodiment
- FIG. 3A is input from a vehicle in this embodiment.
- Figure 3b is a graph showing the transition of the voltage detected by the voltage sensing unit according to each operation information signal input from the vehicle, Referring to this, a vehicle electronic device according to the present embodiment will be described.
- the vehicle electronic device 100 may be a vehicle black box for recording image information including the driving state of the vehicle and various operation information of the vehicle.
- the vehicle electronic device 100 of the present embodiment may be stored in the black box.
- the present invention is not limited thereto, and is used as a concept including all kinds of electronic devices capable of detecting various state information of a vehicle.
- the vehicle electronic apparatus 100 receives a plurality of operation information signals B, S, and A from a vehicle, and outputs the operation information signals B, S, and A, respectively.
- Connectors 150 for outputting signals of different voltages in correspondence with each other;
- a voltage sensing unit 130 sensing a voltage Va of the output signal of the first output terminal OUT1 of the connector 150;
- a controller 110 that detects operation information of the vehicle based on the voltage Va sensed by the voltage detector 130 and stores the operation information of the vehicle in the memory 120.
- the signal (B) is a brake light blinking information signal
- the signal (S) is a lane change alarm signal
- the signal (A) is an accessory voltage signal of the vehicle, and other various types of vehicle operation information signals may be extended. Can be.
- the connector 150 includes a plurality of resistors R1, R2, and R3 respectively connected to a plurality of input terminals to which the plurality of operation information signals B, S, and A are respectively input. .
- the plurality of resistors R1, R2, and R3 are connected in parallel to the reference resistor Ra, and their resistance values are applied to different values.
- the voltage sensed by the voltage sensing unit 130 is determined by the voltage distribution between the connector 150 and the reference resistor Ra.
- the connector 150 further includes a second output terminal OUT2 for outputting the battery voltage VCC from the vehicle, and a third output terminal OUT3 for outputting the ground voltage GND from the vehicle.
- the vehicle electronic device 100 further includes a first resistor Rc connected to the second output terminal OUT2 and a second resistor Rb connected between the first resistor Rc and the third output terminal OUT3. It may include.
- the controller 110 may determine the battery voltage VCC of the vehicle based on the voltage divided by the first resistor Rc and the second resistor Rb.
- an analog-digital converter for digitally converting the voltage Va of the output signal of the first output terminal OUT1 and outputting the converted voltage to the controller 110 may be employed.
- Various types of voltage sensing devices capable of detecting and providing the sensing information may be applied.
- the vehicle electronic device 100 receives operation information signals B, S, and A relating to each operation state of the vehicle from the fuse box 200 of the vehicle through the connector 150, and together with the battery of the vehicle.
- the voltage VCC and the ground voltage GND are also input.
- the three operation information signals B, S, and A are applied as examples of the vehicle operation information signals, and only two of them may be used, or more may be used.
- the signal B is a brake light blinking information signal
- the signal S is a lane change alarm signal
- the signal A is an accessory voltage signal of the vehicle
- these signals are an embodiment of the operation information signal indicating the state information of the vehicle. It is to be understood that the present invention can be extended to other various types of vehicle operation information signals without being limited thereto.
- the fuse box 200 of the vehicle has been cited as an example of a signal provider for providing the various operation information signals B, S, and A, and may provide the operation information signals B, S, and A. It may be another type of module or device.
- these operation information signals have the same voltage value as the battery voltage VCC of the vehicle, and may have different voltage values depending on the embodiment.
- the operation information signals B, S and A have a voltage value of 14 [V] equal to the battery voltage VCC of the vehicle.
- the battery voltage VCC, the operation information signals B, S, and A, and the ground voltage GND input as described above are used to connect the first to third output terminals OUT1 to OUT3 of the connector 150 shown in FIG. 2. It is transmitted to each component of the vehicle electronic device 100 through.
- the battery voltage VCC of the vehicle is transmitted to the power supply unit 140 through the connector 150 to be used as a power source for each component in the vehicle electronic device 100, and the operation information signals B, S, and A are respectively resistances ( It is output to the first output terminal OUT1 through R1), resistor R2, and resistor R3.
- the ground voltage GND is output through the third output terminal OUT3.
- the resistor R1, the resistor R2, and the resistor R3 have different voltage values of the voltage Va of the first output terminal OUT1 due to voltage division with the reference resistor Ra, which will be described later.
- it is connected in parallel with the reference resistance (Ra). That is, when the resistance values of the resistors R1, R2, and R3 connected to the same reference resistor Ra are different from each other, the voltage is determined depending on whether the respective operation information signals B, S, and A are activated.
- the voltage Va of the first output terminal OUT1 to be distributed uses properties that vary. In this embodiment, as shown in Fig.
- a resistance of 1.2 [kW] is used as the reference resistance Ra, and 18 [kW] and 9 [kW are used as the resistors R1, R2, and R3. ] And 33 [ ⁇ ], respectively, and of course, different resistance values can be used depending on the intention of the system designer.
- the voltage detector 130 detects the voltage Va of the signal output to the first output terminal OUT1 of the connector 150 and transmits the detected voltage Va to the controller 110.
- the controller 110 may determine which operation information signal is input based on the voltage Va sensed by the voltage detection unit 130, and may also identify which operation is performed in the vehicle correspondingly. The information is stored in the memory unit 120.
- the resistors R1, R2, and R3 have different resistance values, even if the operation information signals B, S, and A are input at the same voltage, which operation information signals are input.
- the value of the voltage Va sensed by the voltage sensing unit 130 varies depending on whether or not is input. For example, when only the accessory power signal A is input as shown in FIGS. 3A and 3B, the value of the voltage Va divided by the resistor R3 and the reference resistor Ra is represented by Equation 1 below. It becomes 0.49 [V] as follows.
- the controller 110 may determine which operation information signal is input based on the voltage Va sensed by the voltage detector 130.
- the controller 110 may be connected to the voltage detector 130.
- the operation information of the vehicle may be detected by a ratio between the voltage Va sensed by the battery voltage and the battery voltage VCC of the vehicle.
- the rated voltage of the battery voltage VCC is determined in the vehicle
- the voltage value of the battery voltage VCC and the operation information signals B, S, and A obtained therefrom is determined by the vehicle starting on / off state or It may vary depending on the operating state of the generator.
- the ratio between the sensing voltage Va and the battery voltage VCC is kept constant. Therefore, in consideration of the case where the absolute value of the voltage Va sensed by the voltage sensing unit 130 is changed, the sensing voltage Va and the battery voltage VCC as shown in FIG. 3A for more accurate information detection.
- the operation information of the vehicle can be detected depending on the ratio of the liver. That is, as illustrated in FIG. 3A, when the ratio between the sensing voltage Va and the battery voltage VCC is 0.06, it may be detected that the brake lamp is blinking.
- the controller 110 refers to a voltage when the combined resistance of the resistor R1, the resistor R2, and the resistor R2 is the minimum, as a reference voltage, and the sensing voltage Va and the reference voltage as shown in FIG. 3A.
- the operation information of the vehicle may be detected depending on the ratio between the voltages ("output ratio" in FIG. 3A). That is, as illustrated in FIG. 3A, when the ratio between the sensing voltage Va and the reference voltage is 0.76, the lane change alarm may blink and the accessory power may be detected.
- the controller 110 monitors the ratio between the sensing voltage Va and the battery voltage VCC or the ratio between the sensing voltage Va and the reference voltage, thereby accurately operating the vehicle even when the battery voltage VCC is changed. Information can be detected.
- the controller 110 may check which operation information signal is input based on the voltage Va sensed by the voltage detector 130 to determine which operation is performed in the vehicle. This information is stored in the memory unit 120 to check the history stored in the memory unit 120 in the event of an accident or the like in the future so that it is possible to check what operation was performed while driving.
- the vehicle electronic device 100 records in the memory unit 120 that the brake lamp blinking information signal B has been input to determine whether the sudden start occurs later.
- the connector 150 may include a second output terminal OUT2 for outputting the battery voltage VCC from the vehicle, and a third output terminal OUT3 for outputting the ground voltage GND from the vehicle.
- the electronic device 100 may include a first resistor Rc connected to the second output terminal OUT2 and a second resistor Rb connected between the first resistor Rc and the third output terminal OUT3. have.
- the voltage detector 130 detects and provides a voltage Vb divided by the first resistor Rc and the second resistor Rb to the controller 110, and the controller 110 controls the vehicle by the voltage.
- the battery voltage VCC can be calculated.
- an analog-digital converter for digitally converting the voltage Va of the output signal of the first output terminal OUT1 and outputting the converted voltage to the controller 110 may be employed.
- Various types of voltage sensing devices capable of detecting and providing the sensing information may be applied.
- the vehicle electronic device 100 has a separate signal conversion unit (not shown) between the fuse box 200 and the connector 150 of the vehicle, that is, at the front end of the connector 150. It may further include.
- the signal converting unit (not shown) is a device for converting the signal input from the fuse box 200 of the vehicle, such as the battery voltage or the ground voltage according to whether the input of each signal to a battery voltage or an open state voltage. .
- the on-vehicle electronic device has a voltage distribution action by a plurality of resistors having different resistance values without adding a separate signal line or connector in hardware in detecting the operation state or operation history of the vehicle.
- Various operating state information of the vehicle may be detected and recorded using the above, and thus, the user may accurately grasp the operation history of the vehicle in case of an accident such as a later occurrence.
- the electronic device for a vehicle according to the present embodiment may be implemented by simply adding a resistor and performing software processing without additionally installing an expensive separate analyzer.
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Abstract
The present invention relates to an electronic device for a vehicle, comprising: a connector for receiving two or more operation information signals from the vehicle so as to output signals of different voltages in response to the respective operation information signals; a voltage detection unit for detecting an output signal voltage of a first output end of the connector; and a control unit for detecting operation information of the vehicle on the basis of the voltage detected by the voltage detection unit so as to store the detected operation information in a memory unit.
Description
본 발명은 차량용 전자장치에 관한 것으로, 차량의 동작 상태나 동작 이력을 검출함에 있어 별도의 신호선이나 커넥터를 추가하지 않고도 차량의 다양한 동작 상태 정보를 검출하여 기록할 수 있도록 하는 차량용 전자장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle electronic device, and more particularly, to a vehicle electronic device capable of detecting and recording various operation state information of a vehicle without adding a separate signal line or connector in detecting an operation state or operation history of the vehicle. .
일반적으로 비행기에 장착되는 블랙박스는 사고 순간의 비행기의 동작 상태와 운행자의 신체 상태, 그리고 사고 순간에 운행자들 사이에 주고 받은 음성데이터 등을 내부 메모리에 저장하는 장치이다. 그래서, 비행기의 사고 이후에 블랙박스를 수거하여 분석하면, 사고 순간의 상태를 역추적할 수 있다.In general, a black box mounted on an airplane is a device that stores the operating state of the plane at the moment of an accident, the physical state of the operator, and voice data exchanged between the operators at the moment of an accident in an internal memory. So, if you collect and analyze a black box after an accident, you can trace back the state of the moment.
이와 마찬가지로 차량용 블랙박스는 차량의 주행 중 사고가 발생했을 때, 어떻게 사고가 발생되었는가를 판단하기 위하여 필요한 정보를 얻기 위한 장치이다. 이러한 차량용 블랙박스는 차량의 주행 중 발생하는 각종 상황을 녹화하여 기록할 뿐만 아니라, 주차 상태에서도 상시 녹화모드를 통하여 차량의 소손 발생 여부를 감시한다.Similarly, the vehicle black box is a device for obtaining information necessary to determine how the accident occurred when the accident occurred while driving the vehicle. The black box for a vehicle not only records and records various situations occurring while the vehicle is running, but also monitors whether a vehicle burns out through the always recording mode even in a parking state.
통상적으로 블랙박스와 같은 차량용 전자장치는 2개의 전원선(배터리전압, 접지전압) 외에 차량의 조작 상태를 파악하기 위한 1개의 신호선을 구비한 전원 커넥터를 사용하고 있다. 일반적으로, 상기 1개의 신호선은 악세서리 전원의 상태를 파악하기 위한 용도로 사용되지만 브레이크등의 점멸 여부를 파악하기 위한 용도로 사용되기도 한다.In general, a vehicle electronic device such as a black box uses a power connector having two signal lines (battery voltage and ground voltage) in addition to one signal line for determining an operation state of the vehicle. In general, the one signal line is used to determine the state of the accessory power supply, but may also be used to determine whether the brake light is blinking.
그런데, 종래의 블랙박스 등의 차량용 전자장치에서는 상기와 같이 1개의 신호선만을 사용하여 이 신호선을 통해 하나의 신호만을 입력받을 수 있었기 때문에, 악세서리 전원의 상태를 파악하는 용도 또는 브레이크등의 점멸 여부를 파악하는 용도 중 어느 하나의 용도로만 사용할 수 있는 한계점이 있었다. 또한, 악세서리 전원의 입력여부, 브레이크등의 점멸 여부 외에 좌측/우측방향 차선변경 알람의 점멸 여부나 기타 차량의 다양한 동작여부를 파악할 수 있도록 확장하는 데에 어려움이 있었다. However, in a vehicle electronic device such as a conventional black box, only one signal can be input through the signal line using only one signal line as described above. Therefore, it is necessary to determine the use of the accessory power supply or whether the brake or the like is blinking. There was a limitation that could be used for only one of the uses. In addition, in addition to whether the accessory power supply input, whether the brake flashes, etc., it was difficult to expand to grasp whether the left / right lane change alarm flashes or other various vehicle operations.
이와 같이 다양한 차량 동작 상태 정보를 얻기 위해서는 별도의 신호선을 추가하거나 별도의 커넥터를 추가하여야 하지만, 전원 커넥터의 표준 사양에 맞추기 위해서는 임의로 이러한 신호선이나 커넥터를 추가할 수 없는 문제점이 있었다. 물론, 차량의 동작 상태 정보를 얻기 위하여 기존의 OBD(on board diagnotics)-II 시스템을 이용할 수는 있지만, 이 경우에는 해당 시스템이나 장치를 추가하여야 하기 때문에 시스템이 복잡해지고 소요 비용이 증가하는 문제점이 있었다. In order to obtain various vehicle operation state information as described above, an additional signal line or an additional connector must be added, but there is a problem in that such signal line or connector cannot be added arbitrarily in order to meet the standard specification of the power connector. Of course, it is possible to use the existing OBD (on board diagnotics) -II system to obtain the operating state information of the vehicle, but in this case, the system is complicated and the cost is increased because additional systems or devices must be added. there was.
본 발명의 배경기술은 한국 공개특허공보 제 2012-0019881호(2012.03.07 공개)에 개시되어 있다.Background art of the present invention is disclosed in Korean Laid-Open Patent Publication No. 2012-0019881 (published on March 7, 2012).
본 발명이 이루고자 하는 기술적 과제는, 차량의 동작 상태나 동작 이력을 검출함에 있어 하드웨어적으로 별도의 신호선이나 커넥터를 추가하지 않고도 차량의 다양한 동작 상태 정보를 검출하여 기록할 수 있도록 하는 차량용 전자장치를 제공하는 데에 있다.SUMMARY OF THE INVENTION The present invention provides a vehicle electronic device capable of detecting and recording various operating state information of a vehicle without detecting a separate signal line or connector in hardware in detecting the operating state or operation history of the vehicle. To provide.
본 발명의 일 측면에 따르면, 본 발명은 차량으로부터 둘 이상의 동작 정보 신호를 입력받아, 상기 각 동작 정보 신호에 대응하여 각각 상이한 전압의 신호를 출력하는 커넥터; 상기 커넥터의 제 1 출력단의 출력신호의 전압을 감지하는 전압감지부; 및 상기 전압감지부에 의해 감지되는 전압에 근거하여 차량의 동작 정보를 검출하여 메모리부에 저장하는 제어부를 포함하는 것을 특징으로 하는 차량용 전자장치를 제공한다.According to an aspect of the present invention, the present invention comprises a connector for receiving two or more operation information signals from the vehicle, and outputs signals of different voltages corresponding to the respective operation information signals; A voltage sensing unit sensing a voltage of an output signal of the first output terminal of the connector; And a controller configured to detect operation information of the vehicle based on the voltage detected by the voltage detector and store the operation information of the vehicle.
본 발명은 상기 커넥터의 제 1 출력단과 접지단 사이에 설치되는 기준저항을 더 포함하되, 상기 전압감지부에 의해 감지되는 전압은 상기 커넥터와 상기 기준저항 간의 전압분배에 의해 결정되는 것을 특징으로 한다.The present invention further includes a reference resistor installed between the first output terminal and the ground terminal of the connector, wherein the voltage sensed by the voltage sensing unit is determined by voltage distribution between the connector and the reference resistor. .
본 발명에서, 상기 커넥터는 상기 둘 이상의 동작 정보 신호가 각각 입력되는 복수의 입력단에 각각 연결되는 둘 이상의 저항을 포함하고, 상기 둘 이상의 저항은 상기 기준저항에 병렬로 연결되고 저항값이 각각 상이한 것을 특징으로 한다.In the present invention, the connector includes two or more resistors each connected to a plurality of input terminals to which the two or more operation information signals are respectively input, wherein the two or more resistors are connected in parallel to the reference resistance and the resistance values are different from each other. It features.
본 발명에서, 상기 제어부는, 상기 커넥터에 포함된 둘 이상의 저항의 합성저항이 최소일 때 상기 커넥터의 제 1 출력단의 출력신호의 전압을 참조전압으로 하여, 상기 제 1 출력단의 출력전압과 상기 참조전압 간의 비율에 의해 상기 차량의 동작 정보를 검출하는 것을 특징으로 한다.In the present invention, the control unit, when the combined resistance of the two or more resistors included in the connector is the minimum, the voltage of the output signal of the first output terminal of the connector as a reference voltage, the output voltage of the first output terminal and the reference And detecting operation information of the vehicle by a ratio between voltages.
본 발명에서, 상기 제어부는 상기 전압감지부에 의해 감지되는 전압과 차량의 배터리 전압 간의 비율에 의해 상기 차량의 동작 정보를 검출하는 것을 특징으로 한다.In the present invention, the control unit is characterized in that for detecting the operation information of the vehicle by the ratio between the voltage sensed by the voltage sensing unit and the battery voltage of the vehicle.
본 발명에서, 상기 커넥터는 차량으로부터의 배터리 전압을 출력하는 제 2출력단, 및 상기 차량으로부터의 접지전압을 출력하는 제 3출력단을 더 포함하고, 상기 차량용 전자장치는 상기 제 2 출력단에 연결되는 제 1저항, 및 상기 제 1저항과 상기 제 3출력단 사이에 연결되는 제 2저항을 더 포함하며, 상기 제어부는 상기 제 1저항과 제 2저항에 의해 전압분배된 전압에 의해 상기 차량의 배터리 전압을 판단하는 것을 특징으로 한다.In the present invention, the connector further includes a second output terminal for outputting a battery voltage from the vehicle, and a third output terminal for outputting a ground voltage from the vehicle, wherein the vehicle electronics device is connected to the second output terminal; And a second resistor connected between the first resistor and the third output terminal, wherein the controller is configured to adjust the battery voltage of the vehicle by the voltage divided by the first resistor and the second resistor. It is characterized by judging.
본 발명에서, 상기 둘 이상의 동작 정보 신호는 적어도 차량의 악세서리 전압 신호, 브레이크등 점멸정보 신호, 차선 변경 알람 신호를 포함하는 것을 특징으로 한다.In the present invention, the two or more operation information signals are characterized in that it comprises at least a vehicle accessory voltage signal, a brake light flashing information signal, a lane change alarm signal.
본 발명에서, 상기 전압감지부는 상기 제 1 출력단의 출력신호의 전압을 디지털 변환하여 상기 제어부에 출력하는 아날로그-디지털 컨버터인 것을 특징으로 한다.The voltage sensing unit may be an analog-digital converter for digitally converting a voltage of an output signal of the first output terminal and outputting the digital signal to the controller.
본 발명에서, 상기 차량용 전자장치는 차량의 주행상태를 포함한 영상정보와 차량의 각종 동작 정보를 기록하는 차량용 블랙박스인 것을 특징으로 한다.In the present invention, the vehicle electronic device is a vehicle black box for recording the image information including the driving state of the vehicle and various operation information of the vehicle.
본 발명은 상기 차량으로부터 입력되는 둘 이상의 동작 정보 신호가 각 신호의 활성화여부에 따라 배터리 전압 또는 접지전압으로 입력되는 경우, 상기 동작 정보 신호를 배터리 전압 또는 개방상태의 전압으로 변환하여 상기 커넥터에 제공하는 신호변환부를 더 포함하는 것을 특징으로 한다.The present invention converts the operation information signal into a battery voltage or an open state voltage and provides it to the connector when two or more operation information signals inputted from the vehicle are input to the battery voltage or the ground voltage according to whether each signal is activated. Characterized in that it further comprises a signal conversion unit.
본 발명에 따른 차량용 전자장치는, 차량의 동작 상태나 동작 이력을 검출함에 있어 하드웨어적인 별도의 신호선이나 커넥터의 추가없이도 상이한 저항값을 갖는 복수의 저항에 의한 전압분배 작용을 이용하여 차량의 다양한 동작 상태 정보를 각각 검출하여 기록할 수 있고, 이를 통해 추후 사고발생 등의 유사시에 차량의 동작 이력을 정확하게 파악할 수 있도록 한다.The electronic device for a vehicle according to the present invention uses a voltage distribution action by a plurality of resistors having different resistance values without adding a separate signal line or connector in hardware in detecting an operation state or operation history of the vehicle. Status information can be detected and recorded, respectively, so that the operation history of the vehicle can be accurately grasped in case of an accident in the future.
본 발명에 따른 차량용 전자장치는 고가의 별도의 분석장치를 추가 설치하지 않고도 간단한 저항의 추가 및 소프트웨어적 처리만으로 구현될 수 있는 이점이 있다.An electronic device for a vehicle according to the present invention has an advantage in that it can be implemented by simply adding a resistor and performing software processing without additionally installing an expensive separate analyzer.
도 1은 본 발명의 일 실시예에 따른 차량용 전자장치의 구성을 나타낸 블럭구성도이다.1 is a block diagram illustrating a configuration of an electronic device for a vehicle according to an exemplary embodiment of the present disclosure.
도 2는 본 실시예에 포함된 커넥터의 구성을 나타낸 것이다.2 shows the configuration of the connector included in this embodiment.
도 3a는 본 실시예에서 차량으로부터 입력되는 각 동작 정보 신호에 따라 전압감지부에서 감지되는 전압을 포함한 각종 비율 정보를 나타낸 표이다.FIG. 3A is a table illustrating various ratio information including a voltage sensed by a voltage sensing unit according to each operation information signal input from a vehicle in this embodiment.
도 3b는 차량으로부터 입력되는 각 동작 정보 신호에 따라 전압감지부에서 감지되는 전압의 추이를 보인 그래프이다.3B is a graph illustrating a transition of the voltage detected by the voltage detector according to each operation information signal input from the vehicle.
아래에서는 첨부한 도면을 참고로 하여 본 발명의 실시예에 대하여 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 용이하게 실시할 수 있도록 상세히 설명한다. 그러나, 본 발명은 여러 가지 상이한 형태로 구현될 수 있으며 여기에서 설명하는 실시예에 한정되지 않는다. 그리고, 도면에서 본 발명을 명확하게 설명하기 위해서 설명과 관계없는 부분은 생략하였으며, 명세서 전체를 통하여 유사한 부분에 대해서는 유사한 도면부호를 붙였다.DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted for simplicity of explanation, and like reference numerals designate like parts throughout the specification.
*명세서 전체에서, 어떤 부분이 어떤 구성 요소를 "포함" 한다고 할 때, 이는 특별히 반대되는 기재가 없는 한 다른 구성요소를 제외하는 것이 아니라 다른 구성요소를 더 포함할 수 있는 것을 의미한다. Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, not to exclude other components, unless specifically stated otherwise.
도 1은 본 발명의 일 실시예에 따른 차량용 전자장치의 구성을 나타낸 블럭구성도이고, 도 2는 본 실시예에 포함된 커넥터의 구성을 나타낸 것이고, 도 3a는 본 실시예에서 차량으로부터 입력되는 각 동작 정보 신호에 따라 전압감지부에서 감지되는 전압을 포함한 각종 비율 정보를 나타낸 표이며, 도 3b는 차량으로부터 입력되는 각 동작 정보 신호에 따라 전압감지부에서 감지되는 전압의 추이를 보인 그래프로서, 이를 참조하여 본 실시예에 따른 차량용 전자장치를 설명하면 다음과 같다. 1 is a block diagram showing a configuration of an electronic device for a vehicle according to an embodiment of the present invention, FIG. 2 is a diagram showing a configuration of a connector included in the present embodiment, and FIG. 3A is input from a vehicle in this embodiment. Table showing various ratio information including the voltage detected by the voltage sensing unit according to each operation information signal, Figure 3b is a graph showing the transition of the voltage detected by the voltage sensing unit according to each operation information signal input from the vehicle, Referring to this, a vehicle electronic device according to the present embodiment will be described.
본 실시예에서 차량용 전자장치(100)는 차량의 주행상태를 포함한 영상정보와 차량의 각종 동작 정보를 기록하는 차량용 블랙박스일 수 있으며, 다만, 본 실시예의 차량용 전자장치(100)는 블랙박스에 한정되지 않고 차량의 각종 상태정보를 검출할 수 있는 다양한 형태의 전자장치를 모두 포함하는 개념으로 사용된다. In the present embodiment, the vehicle electronic device 100 may be a vehicle black box for recording image information including the driving state of the vehicle and various operation information of the vehicle. However, the vehicle electronic device 100 of the present embodiment may be stored in the black box. The present invention is not limited thereto, and is used as a concept including all kinds of electronic devices capable of detecting various state information of a vehicle.
도 1에 도시된 바와 같이, 본 실시예에 따른 차량용 전자장치(100)는 차량으로부터 복수의 동작 정보 신호(B, S, A)를 입력받아, 상기 각 동작 정보 신호(B, S, A)에 대응하여 각각 상이한 전압의 신호를 출력하는 커넥터(150); 커넥터(150)의 제 1출력단(OUT1)의 출력신호의 전압(Va)을 감지하는 전압감지부(130); 및 전압감지부(130)에 의해 감지되는 전압(Va)에 근거하여 차량의 동작 정보를 검출하여 메모리부(120)에 저장하는 제어부(110)를 포함하여 구성된다. 여기서, 신호(B)는 브레이크등 점멸정보 신호이고, 신호(S)는 차선 변경 알람 신호이며, 신호(A)는 차량의 악세서리 전압 신호이며, 이 외에 다른 다양한 종류의 차량 동작 정보 신호로 확장될 수 있다.As shown in FIG. 1, the vehicle electronic apparatus 100 according to the present exemplary embodiment receives a plurality of operation information signals B, S, and A from a vehicle, and outputs the operation information signals B, S, and A, respectively. Connectors 150 for outputting signals of different voltages in correspondence with each other; A voltage sensing unit 130 sensing a voltage Va of the output signal of the first output terminal OUT1 of the connector 150; And a controller 110 that detects operation information of the vehicle based on the voltage Va sensed by the voltage detector 130 and stores the operation information of the vehicle in the memory 120. Here, the signal (B) is a brake light blinking information signal, the signal (S) is a lane change alarm signal, the signal (A) is an accessory voltage signal of the vehicle, and other various types of vehicle operation information signals may be extended. Can be.
도 2에 도시된 바와 같이, 커넥터(150)는 상기 복수의 동작 정보 신호(B, S, A)가 각각 입력되는 복수의 입력단에 각각 연결되는 복수의 저항(R1, R2, R3)을 포함한다. 그리고, 이 복수의 저항(R1, R2, R3)은 기준저항(Ra)에 병렬로 연결되며, 그 저항값이 각각 상이한 값으로 적용된다. 전압감지부(130)에 의해 감지되는 전압은 커넥터(150)와 기준저항(Ra) 간의 전압분배에 의해 결정된다.As shown in FIG. 2, the connector 150 includes a plurality of resistors R1, R2, and R3 respectively connected to a plurality of input terminals to which the plurality of operation information signals B, S, and A are respectively input. . The plurality of resistors R1, R2, and R3 are connected in parallel to the reference resistor Ra, and their resistance values are applied to different values. The voltage sensed by the voltage sensing unit 130 is determined by the voltage distribution between the connector 150 and the reference resistor Ra.
커넥터(150)는 차량으로부터의 배터리 전압(VCC)을 출력하는 제 2출력단(OUT2), 및 차량으로부터의 접지전압(GND)을 출력하는 제 3출력단(OUT3)을 더 포함하고, 본 실시예에 따른 차량용 전자장치(100)는 제 2출력단(OUT2)에 연결되는 제 1저항(Rc), 및 제 1저항(Rc)과 제 3출력단(OUT3) 사이에 연결되는 제 2저항(Rb)을 더 포함할 수 있다. 제어부(110)는 제 1저항(Rc)과 제 2저항(Rb)에 의해 전압분배된 전압에 의해 차량의 배터리 전압(VCC)을 판단할 수 있다.The connector 150 further includes a second output terminal OUT2 for outputting the battery voltage VCC from the vehicle, and a third output terminal OUT3 for outputting the ground voltage GND from the vehicle. The vehicle electronic device 100 further includes a first resistor Rc connected to the second output terminal OUT2 and a second resistor Rb connected between the first resistor Rc and the third output terminal OUT3. It may include. The controller 110 may determine the battery voltage VCC of the vehicle based on the voltage divided by the first resistor Rc and the second resistor Rb.
본 실시예에서, 전압감지부(130)로는 제 1출력단(OUT1)의 출력신호의 전압(Va)을 디지털 변환하여 제어부(110)에 출력하는 아날로그-디지털 컨버터가 채용될 수 있으며, 그 외에도 전압을 감지하여 그 감지정보를 제공할 수 있는 다양한 형태의 전압 감지장치가 적용될 수 있다.In the present exemplary embodiment, an analog-digital converter for digitally converting the voltage Va of the output signal of the first output terminal OUT1 and outputting the converted voltage to the controller 110 may be employed. Various types of voltage sensing devices capable of detecting and providing the sensing information may be applied.
이와 같이 구성된 본 실시예의 동작 및 작용을 도 1 내지 도 3b를 참조하여 구체적으로 설명한다.The operation and operation of this embodiment configured as described above will be described in detail with reference to FIGS. 1 to 3B.
본 실시예의 차량용 전자장치(100)는 커넥터(150)를 통하여 차량의 퓨즈박스(200)로부터 차량의 각 동작 상태에 관한 동작 정보 신호(B, S, A)를 입력받으며, 이와 함께 차량의 배터리 전압(VCC)과 접지전압(GND)도 입력받는다. The vehicle electronic device 100 according to the present exemplary embodiment receives operation information signals B, S, and A relating to each operation state of the vehicle from the fuse box 200 of the vehicle through the connector 150, and together with the battery of the vehicle. The voltage VCC and the ground voltage GND are also input.
여기서, 상기 3개의 동작 정보 신호(B, S, A)는 차량 동작 정보 신호의 예들로서 적용되었으며, 이들 중 어느 2개만 사용될 수도 있고 그 이상이 사용될 수도 있다. 신호(B)는 브레이크등 점멸정보 신호이고, 신호(S)는 차선 변경 알람 신호이며, 신호(A)는 차량의 악세서리 전압 신호로서, 이들 신호는 차량의 상태 정보를 나타내는 동작 정보 신호의 실시예들로 인용되었으며 본 발명은 이에 한정되지 않고 다른 다양한 종류의 차량 동작 정보 신호로 확장될 수 있음은 당연하다 할 것이다.Here, the three operation information signals B, S, and A are applied as examples of the vehicle operation information signals, and only two of them may be used, or more may be used. The signal B is a brake light blinking information signal, the signal S is a lane change alarm signal, the signal A is an accessory voltage signal of the vehicle, and these signals are an embodiment of the operation information signal indicating the state information of the vehicle. It is to be understood that the present invention can be extended to other various types of vehicle operation information signals without being limited thereto.
또한, 차량의 퓨즈박스(200)는 상기 각종 동작 정보 신호(B, S, A)를 제공하는 신호 제공 주체의 한 예로서 인용되었으며, 상기 동작 정보 신호(B, S, A)를 제공할 수 있는 다른 형태의 모듈이나 장치가 될 수도 있다. In addition, the fuse box 200 of the vehicle has been cited as an example of a signal provider for providing the various operation information signals B, S, and A, and may provide the operation information signals B, S, and A. It may be another type of module or device.
통상적으로 이들 동작 정보 신호들은 차량의 배터리 전압(VCC)과 동일한 전압값을 가지며, 실시예에 따라서는 다른 전압값을 가질 수도 있을 것이다. 본 실시예에서, 동작 정보 신호(B, S, A)는 차량의 배터리 전압(VCC)과 동일한 14[V]의 전압값을 갖는 것으로 가정한다.Typically, these operation information signals have the same voltage value as the battery voltage VCC of the vehicle, and may have different voltage values depending on the embodiment. In the present embodiment, it is assumed that the operation information signals B, S and A have a voltage value of 14 [V] equal to the battery voltage VCC of the vehicle.
상기와 같이 입력된 배터리 전압(VCC), 동작 정보신호(B, S, A) 및 접지전압(GND)은 도 2에 도시된 커넥터(150)의 제 1 내지 제 3출력단(OUT1-OUT3)을 통하여 차량용 전자장치(100)의 각 구성요소에 전달된다. 차량의 배터리 전압(VCC)은 커넥터(150)를 통해 전원부(140)에 전달되어 차량용 전자장치(100) 내의 각 구성요소의 전원으로 사용되고, 동작 정보신호(B, S, A)는 각각 저항(R1), 저항(R2), 저항(R3)를 통하여 제 1출력단(OUT1)으로 출력된다. 그리고, 접지전압(GND)은 제 3출력단(OUT3)를 통하여 출력된다.The battery voltage VCC, the operation information signals B, S, and A, and the ground voltage GND input as described above are used to connect the first to third output terminals OUT1 to OUT3 of the connector 150 shown in FIG. 2. It is transmitted to each component of the vehicle electronic device 100 through. The battery voltage VCC of the vehicle is transmitted to the power supply unit 140 through the connector 150 to be used as a power source for each component in the vehicle electronic device 100, and the operation information signals B, S, and A are respectively resistances ( It is output to the first output terminal OUT1 through R1), resistor R2, and resistor R3. The ground voltage GND is output through the third output terminal OUT3.
여기서, 저항(R1), 저항(R2), 저항(R3)은 후술하는 기준저항(Ra)과의 전압분배 작용에 의해 제 1출력단(OUT1)의 전압(Va)이 각각 다른 전압값을 갖도록 하기 위하여 서로 다른 저항값을 갖도록 구현되고, 기준저항(Ra)과는 병렬로 연결된다. 즉, 동일한 기준저항(Ra)에 연결되는 저항(R1), 저항(R2), 저항(R3)의 저항값이 서로 다른 경우, 각 동작 정보신호(B, S, A)의 활성화 여부에 따라 전압분배되는 제 1출력단(OUT1)의 전압(Va)은 각각 달라지는 성질을 이용하는 것이다. 본 실시예에서는 도 3a에 도시된 바와 같이 기준저항(Ra)으로 1.2[Ω]의 저항을 사용하고, 저항(R1), 저항(R2), 저항(R3)으로 18[Ω], 9[Ω], 33[Ω]을 각각 사용하며, 물론 시스템 설계자의 의도에 따라 다른 저항값을 사용할 수 있음은 당연하다.Here, the resistor R1, the resistor R2, and the resistor R3 have different voltage values of the voltage Va of the first output terminal OUT1 due to voltage division with the reference resistor Ra, which will be described later. In order to have a different resistance value, it is connected in parallel with the reference resistance (Ra). That is, when the resistance values of the resistors R1, R2, and R3 connected to the same reference resistor Ra are different from each other, the voltage is determined depending on whether the respective operation information signals B, S, and A are activated. The voltage Va of the first output terminal OUT1 to be distributed uses properties that vary. In this embodiment, as shown in Fig. 3A, a resistance of 1.2 [kW] is used as the reference resistance Ra, and 18 [kW] and 9 [kW are used as the resistors R1, R2, and R3. ] And 33 [Ω], respectively, and of course, different resistance values can be used depending on the intention of the system designer.
이어서, 전압감지부(130)는 커넥터(150)의 제 1출력단(OUT1)으로 출력되는 신호의 전압(Va)을 감지하여 제어부(110)에 전달한다. Subsequently, the voltage detector 130 detects the voltage Va of the signal output to the first output terminal OUT1 of the connector 150 and transmits the detected voltage Va to the controller 110.
그리고, 제어부(110)는 전압감지부(130)에 의해 감지된 전압(Va)에 근거하여 어떤 동작 정보 신호가 입력된 것인지를 확인할 수 있고 또한 그에 대응하여 차량에서는 어떤 동작이 수행되었는지를 확인할 수 있으며, 그 정보를 메모리부(120)에 저장한다.In addition, the controller 110 may determine which operation information signal is input based on the voltage Va sensed by the voltage detection unit 130, and may also identify which operation is performed in the vehicle correspondingly. The information is stored in the memory unit 120.
상술한 바와 같이 저항(R1), 저항(R2), 저항(R3)은 각각 다른 저항값을 가지고 있기 때문에, 상기 동작 정보 신호(B, S, A)가 동일한 전압으로 입력된다고 하더라도 어느 동작 정보신호가 입력되는지의 여부에 따라 전압감지부(130)에 의해 감지되는 전압(Va)의 값은 달라지게 된다. 가령, 도 3a 및 도 3b에 도시된 바와 같이 악세서리 전원신호(A)만 입력되는 경우에는 저항(R3)과 기준저항(Ra)에 의해 전압분배된 전압(Va)의 값은 아래의 수학식 1과 같이 0.49[V]가 된다.As described above, since the resistors R1, R2, and R3 have different resistance values, even if the operation information signals B, S, and A are input at the same voltage, which operation information signals are input. The value of the voltage Va sensed by the voltage sensing unit 130 varies depending on whether or not is input. For example, when only the accessory power signal A is input as shown in FIGS. 3A and 3B, the value of the voltage Va divided by the resistor R3 and the reference resistor Ra is represented by Equation 1 below. It becomes 0.49 [V] as follows.
또한, 가령 도 3a 및 도 3b에 도시된 바와 같이 브레이크등 점멸정보 신호(B)와 차선 변경 알람 신호(S)가 동시에 입력되는 경우에는 저항(R1), 저항(R2)의 합성저항과 기준저항(Ra)에 의해 전압분배된 전압(Va)의 값은 아래의 수학식 2와 같이 2.33[V]가 된다.3A and 3B, when the brake lamp blinking information signal B and the lane change alarm signal S are input at the same time, the combined resistance of the resistors R1 and R2 and the reference resistor are simultaneously input. The value of the voltage Va divided by the voltage Ra is 2.33 [V] as shown in Equation 2 below.
참고로, 도 3a의 표에서 저항값이 100000000[Ω]으로 표시된 경우는 해당 저항에 신호가 입력되지 않아 개방(open)상태인 경우를 의미한다.For reference, in the table of FIG. 3A, when the resistance value is displayed as 100000000 [Ω], it means that the signal is open because no signal is input to the resistor.
이와 같이 제어부(110)는 전압감지부(130)에 의해 감지된 전압(Va)에 근거하여 어떤 동작 정보 신호가 입력된 것인지를 확인할 수 있는데, 특히 제어부(110)는 전압감지부(130)에 의해 감지되는 전압(Va)과 차량의 배터리 전압(VCC) 간의 비율에 의해 상기 차량의 동작 정보를 검출할 수 있다.As such, the controller 110 may determine which operation information signal is input based on the voltage Va sensed by the voltage detector 130. In particular, the controller 110 may be connected to the voltage detector 130. The operation information of the vehicle may be detected by a ratio between the voltage Va sensed by the battery voltage and the battery voltage VCC of the vehicle.
통상적으로 차량에서 배터리 전압(VCC)의 정격전압은 정해져 있다고는 하나, 이 배터리전압(VCC) 및 이로부터 얻어지는 동작 정보신호(B, S, A)의 전압값은 차량의 시동 온/오프 상태 또는 제너레이터의 동작 상태에 따라 달라질 수 있다. 하지만, 이러한 배터리 전압(VCC)의 변동에도 불구하고 감지 전압(Va)과 배터리 전압(VCC) 간의 비율은 일정한 값을 유지하게 된다. 따라서, 전압감지부(130)에 의해 감지되는 전압(Va)의 절대값이 변하는 경우도 고려하여, 보다 정확한 정보 검출을 위하여 도 3a에 도시된 바와 같이 감지 전압(Va)과 배터리 전압(VCC) 간의 비율이 얼마이냐에 따라 차량의 동작 정보를 검출할 수 있다. 즉, 도 3a에 도시되어 있는 바와 같이, 가령 감지 전압(Va)과 배터리 전압(VCC) 간의 비율이 0.06인 경우에는 브레이크등이 점멸되었음을 검출할 수 있다. In general, although the rated voltage of the battery voltage VCC is determined in the vehicle, the voltage value of the battery voltage VCC and the operation information signals B, S, and A obtained therefrom is determined by the vehicle starting on / off state or It may vary depending on the operating state of the generator. However, despite the change in the battery voltage VCC, the ratio between the sensing voltage Va and the battery voltage VCC is kept constant. Therefore, in consideration of the case where the absolute value of the voltage Va sensed by the voltage sensing unit 130 is changed, the sensing voltage Va and the battery voltage VCC as shown in FIG. 3A for more accurate information detection. The operation information of the vehicle can be detected depending on the ratio of the liver. That is, as illustrated in FIG. 3A, when the ratio between the sensing voltage Va and the battery voltage VCC is 0.06, it may be detected that the brake lamp is blinking.
또한, 제어부(110)는 저항(R1), 저항(R2), 저항(R2)의 합성저항이 최소일 때의 전압을 참조전압으로 하여, 도 3a에 도시된 바와 같이 감지 전압(Va)과 참조전압 간의 비율(도 3a에서 "출력비율")이 얼마이냐에 따라 차량의 동작 정보를 검출할 수도 있다. 즉, 도 3a에 도시되어 있는 바와 같이, 가령 감지 전압(Va)과 참조전압 간의 비율이 0.76인 경우에는 차선 변경 알람이 점멸되고 악세서리 전원이 입력되었음을 검출할 수 있다.In addition, the controller 110 refers to a voltage when the combined resistance of the resistor R1, the resistor R2, and the resistor R2 is the minimum, as a reference voltage, and the sensing voltage Va and the reference voltage as shown in FIG. 3A. The operation information of the vehicle may be detected depending on the ratio between the voltages ("output ratio" in FIG. 3A). That is, as illustrated in FIG. 3A, when the ratio between the sensing voltage Va and the reference voltage is 0.76, the lane change alarm may blink and the accessory power may be detected.
따라서, 제어부(110)는 감지 전압(Va)과 배터리 전압(VCC) 간의 비율, 또는 감지 전압(Va)과 참조전압 간의 비율을 모니터링함으로써, 배터리 전압(VCC)이 변동하는 경우에도 정확하게 차량의 동작 정보를 검출할 수 있다.Therefore, the controller 110 monitors the ratio between the sensing voltage Va and the battery voltage VCC or the ratio between the sensing voltage Va and the reference voltage, thereby accurately operating the vehicle even when the battery voltage VCC is changed. Information can be detected.
이와 같이 제어부(110)는 전압감지부(130)에 의해 감지된 전압(Va)에 근거하여 어떤 동작 정보 신호가 입력된 것인지를 확인함으로써 그에 대응하여 차량에서는 어떤 동작이 수행되었는지를 확인할 수 있으며, 이러한 정보를 메모리부(120)에 저장하여 추후 사고발생 등의 유사시에 메모리부(120)에 저장된 이력을 확인함으로써 주행 중에 어떠한 동작이 수행되었는지를 확인할 수 있도록 한다. As such, the controller 110 may check which operation information signal is input based on the voltage Va sensed by the voltage detector 130 to determine which operation is performed in the vehicle. This information is stored in the memory unit 120 to check the history stored in the memory unit 120 in the event of an accident or the like in the future so that it is possible to check what operation was performed while driving.
예를 들어, 종래에는 차량에 급발진 사고가 발생한다고 하더라도 그 상황을 기록할 수 없어 추후 급발진 발생여부를 입증하는 것이 힘들었다. 그러나, 본 실시예에 따르면, 급발진이 발생한 상황에서 사용자가 브레이크를 밟았다면, 차량용 전자장치(100)는 브레이크등 점멸정보 신호(B)가 입력되었음을 메모리부(120)에 기록함으로써 추후 급발진 발생여부를 명확하게 확인할 수 있도록 한다.For example, in the past, even if a sudden accident occurred in a vehicle, the situation could not be recorded, so it was difficult to prove whether the sudden acceleration occurred later. However, according to the present exemplary embodiment, if the user presses the brake in a situation in which the sudden start occurs, the vehicle electronic device 100 records in the memory unit 120 that the brake lamp blinking information signal B has been input to determine whether the sudden start occurs later. Make sure that
또한, 주행 중 차량의 방향 전환과 관련하여 접촉사고가 발생한 경우, 본 실시예에 따른 차량용 전자장치(100)에 기록된 차선 변경 알람 신호(S)의 입력 이력을 확인함으로써, 차량의 방향 전환시에 운전자의 주행 수칙 준수여부를 확인할 수 있다.In addition, when a contact accident occurs in connection with changing the direction of the vehicle while driving, by checking the input history of the lane change alarm signal (S) recorded in the electronic device 100 for a vehicle according to the present embodiment, You can check the driver's compliance with the driving rules.
한편, 커넥터(150)는 차량으로부터의 배터리 전압(VCC)을 출력하는 제 2출력단(OUT2), 및 차량으로부터의 접지전압(GND)을 출력하는 제 3출력단(OUT3)을 포함할 수 있고, 차량용 전자장치(100)는 제 2출력단(OUT2)에 연결되는 제 1저항(Rc), 및 제 1저항(Rc)과 제 3출력단(OUT3) 사이에 연결되는 제 2저항(Rb)을 포함할 수 있다. 전압감지부(130)는 제 1저항(Rc)과 제 2저항(Rb)에 의해 전압분배된 전압(Vb)을 감지하여 제어부(110)에 제공하고, 제어부(110)는 이러한 전압에 의해 차량의 배터리 전압(VCC)을 연산할 수 있다.Meanwhile, the connector 150 may include a second output terminal OUT2 for outputting the battery voltage VCC from the vehicle, and a third output terminal OUT3 for outputting the ground voltage GND from the vehicle. The electronic device 100 may include a first resistor Rc connected to the second output terminal OUT2 and a second resistor Rb connected between the first resistor Rc and the third output terminal OUT3. have. The voltage detector 130 detects and provides a voltage Vb divided by the first resistor Rc and the second resistor Rb to the controller 110, and the controller 110 controls the vehicle by the voltage. The battery voltage VCC can be calculated.
본 실시예에서 전압감지부(130)로는, 제 1출력단(OUT1)의 출력신호의 전압(Va)을 디지털 변환하여 제어부(110)에 출력하는 아날로그-디지털 컨버터가 채용될 수 있으며, 그 외에도 전압을 감지하여 그 감지정보를 제공할 수 있는 다양한 형태의 전압 감지장치가 적용될 수 있다. In the present exemplary embodiment, as the voltage sensing unit 130, an analog-digital converter for digitally converting the voltage Va of the output signal of the first output terminal OUT1 and outputting the converted voltage to the controller 110 may be employed. Various types of voltage sensing devices capable of detecting and providing the sensing information may be applied.
한편, 상술한 실시예에서는 차량의 퓨즈박스(200) 등으로부터 입력되는 신호가 각 신호의 활성화여부에 따라 배터리 전압 또는 개방(open) 상태의 전압으로 입력되는 경우를 예로 들어 설명하였지만, 실시 형태에 따라서는 상기 각 신호가 그 입력여부에 따라 배터리 전압 또는 접지 전압으로 입력될 수도 있을 것이다. 따라서, 이러한 경우를 위해 본 실시예에 따른 차량용 전자장치(100)는 차량의 퓨즈박스(200)와 커넥터(150) 사이, 즉 커넥터(150)의 전단부에 별도의 신호변환부(미도시)를 더 포함할 수 있다. 이 신호변환부(미도시)는 상기 차량의 퓨즈박스(200) 등으로부터 입력되는 신호가 각 신호의 입력여부에 따라 배터리 전압 또는 접지전압인 경우 이를 배터리 전압 또는 개방상태의 전압으로 변환하는 장치이다.Meanwhile, in the above-described embodiment, a case in which a signal input from the fuse box 200 of the vehicle or the like is input as a battery voltage or an open state voltage according to whether each signal is activated is described as an example. Therefore, each signal may be input as a battery voltage or a ground voltage depending on whether the signal is input. Therefore, for this case, the vehicle electronic device 100 according to the present embodiment has a separate signal conversion unit (not shown) between the fuse box 200 and the connector 150 of the vehicle, that is, at the front end of the connector 150. It may further include. The signal converting unit (not shown) is a device for converting the signal input from the fuse box 200 of the vehicle, such as the battery voltage or the ground voltage according to whether the input of each signal to a battery voltage or an open state voltage. .
이상 살펴 본 바와 같이, 본 실시예에 따른 차량용 전자장치는, 차량의 동작 상태나 동작 이력을 검출함에 있어 하드웨어적인 별도의 신호선이나 커넥터의 추가없이도 상이한 저항값을 갖는 복수의 저항에 의한 전압분배 작용을 이용하여 차량의 다양한 동작 상태 정보를 각각 검출하여 기록할 수 있고, 이를 통해 추후 사고발생 등의 유사시에 사용자로 하여금 차량의 동작 이력을 정확하게 파악할 수 있도록 한다. 또한, 본 실시예에 따른 차량용 전자장치는 고가의 별도의 분석장치를 추가 설치하지 않고도 간단한 저항의 추가 및 소프트웨어적 처리만으로 구현될 수 있다.As described above, the on-vehicle electronic device according to the present embodiment has a voltage distribution action by a plurality of resistors having different resistance values without adding a separate signal line or connector in hardware in detecting the operation state or operation history of the vehicle. Various operating state information of the vehicle may be detected and recorded using the above, and thus, the user may accurately grasp the operation history of the vehicle in case of an accident such as a later occurrence. In addition, the electronic device for a vehicle according to the present embodiment may be implemented by simply adding a resistor and performing software processing without additionally installing an expensive separate analyzer.
이상에서 본 발명의 실시 예에 대하여 상세하게 설명하였지만 본 발명의 권리범위는 이에 한정되는 것은 아니고, 다음의 청구범위에서 정의하고 있는 본 발명의 기본 개념을 이용한 당업자의 여러 변형 및 개량 형태 또한 본 발명의 권리범위에 속하는 것이다.Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.
Claims (10)
- 차량으로부터 둘 이상의 동작 정보 신호를 입력받아, 상기 각 동작 정보 신호에 대응하여 각각 상이한 전압의 신호를 출력하는 커넥터;A connector that receives two or more operation information signals from a vehicle and outputs signals having different voltages corresponding to the operation information signals;상기 커넥터의 제 1 출력단의 출력신호의 전압을 감지하는 전압감지부; 및A voltage sensing unit sensing a voltage of an output signal of the first output terminal of the connector; And상기 전압감지부에 의해 감지되는 전압에 근거하여 차량의 동작 정보를 검출하여 메모리부에 저장하는 제어부를 포함하는 것을 특징으로 하는 차량용 전자장치.And a controller configured to detect operation information of the vehicle based on the voltage sensed by the voltage detector and store the operation information of the vehicle.
- 제 1항에 있어서,The method of claim 1,상기 커넥터의 제 1 출력단과 접지단 사이에 설치되는 기준저항을 더 포함하되,Further comprising a reference resistor is installed between the first output terminal and the ground terminal of the connector,상기 전압감지부에 의해 감지되는 전압은 상기 커넥터와 상기 기준저항 간의 전압분배에 의해 결정되는 것을 특징으로 하는 차량용 전자장치.The voltage sensed by the voltage sensing unit is determined by the voltage distribution between the connector and the reference resistor.
- 제 2항에 있어서,The method of claim 2,상기 커넥터는 상기 둘 이상의 동작 정보 신호가 각각 입력되는 복수의 입력단에 각각 연결되는 둘 이상의 저항을 포함하고,The connector includes two or more resistors each connected to a plurality of input terminals to which the two or more operation information signals are respectively input.상기 둘 이상의 저항은 상기 기준저항에 병렬로 연결되고 저항값이 각각 상이한 것을 특징으로 하는 차량용 전자장치.And the two or more resistors are connected in parallel with the reference resistor and have different resistance values.
- 제 3항에 있어서,The method of claim 3, wherein상기 제어부는, 상기 커넥터에 포함된 둘 이상의 저항의 합성저항이 최소일 때 상기 커넥터의 제 1 출력단의 출력신호의 전압을 참조전압으로 하여, 상기 제 1 출력단의 출력전압과 상기 참조전압 간의 비율에 의해 상기 차량의 동작 정보를 검출하는 것을 특징으로 하는 차량용 전자장치.The controller may be configured to provide a reference voltage based on a voltage of an output signal of the first output terminal of the connector when the combined resistance of two or more resistors included in the connector is minimum, and to determine a ratio between the output voltage of the first output terminal and the reference voltage. And detecting operation information of the vehicle.
- 제 1항에 있어서,The method of claim 1,상기 제어부는 상기 전압감지부에 의해 감지되는 전압과 차량의 배터리 전압 간의 비율에 의해 상기 차량의 동작 정보를 검출하는 것을 특징으로 하는 차량용 전자장치.And the controller detects operation information of the vehicle by a ratio between the voltage sensed by the voltage detector and the battery voltage of the vehicle.
- 제 5항에 있어서,The method of claim 5,상기 커넥터는 차량으로부터의 배터리 전압을 출력하는 제 2출력단, 및 상기 차량으로부터의 접지전압을 출력하는 제 3출력단을 더 포함하고,The connector further includes a second output terminal for outputting a battery voltage from the vehicle, and a third output terminal for outputting a ground voltage from the vehicle,상기 차량용 전자장치는 상기 제 2 출력단에 연결되는 제 1저항, 및 상기 제 1저항과 상기 제 3출력단 사이에 연결되는 제 2저항을 더 포함하며,The vehicle electronic device further includes a first resistor connected to the second output terminal, and a second resistor connected between the first resistor and the third output terminal,상기 제어부는 상기 제 1저항과 제 2저항에 의해 전압분배된 전압에 의해 상기 차량의 배터리 전압을 판단하는 것을 특징으로 하는 차량용 전자장치.And the control unit determines the battery voltage of the vehicle based on the voltage divided by the first and second resistors.
- 제 1항에 있어서,The method of claim 1,상기 둘 이상의 동작 정보 신호는 적어도 차량의 악세서리 전압 신호, 브레이크등 점멸정보 신호, 차선 변경 알람 신호를 포함하는 것을 특징으로 하는 차량용 전자장치.The at least two operation information signals include at least a vehicle accessory voltage signal, a brake light blinking information signal, and a lane change alarm signal.
- 제 1항에 있어서,The method of claim 1,상기 전압감지부는 상기 제 1 출력단의 출력신호의 전압을 디지털 변환하여 상기 제어부에 출력하는 아날로그-디지털 컨버터인 것을 특징으로 하는 차량용 전자장치.And the voltage sensing unit is an analog-digital converter for digitally converting a voltage of an output signal of the first output terminal and outputting the converted voltage to the controller.
- 제 1항에 있어서,The method of claim 1,상기 차량용 전자장치는 차량의 주행상태를 포함한 영상정보와 차량의 각종 동작 정보를 기록하는 차량용 블랙박스인 것을 특징으로 하는 차량용 전자장치.The vehicle electronic device is a vehicle electronic box, characterized in that the vehicle black box for recording the image information including the driving state of the vehicle and the various operation information of the vehicle.
- 제 1항에 있어서,The method of claim 1,상기 차량으로부터 입력되는 둘 이상의 동작 정보 신호가 각 신호의 활성화여부에 따라 배터리 전압 또는 접지전압으로 입력되는 경우, 상기 동작 정보 신호를 배터리 전압 또는 개방상태의 전압으로 변환하여 상기 커넥터에 제공하는 신호변환부를 더 포함하는 것을 특징으로 하는 차량용 전자장치.When two or more operation information signals input from the vehicle are input as battery voltage or ground voltage according to whether each signal is activated, a signal conversion for converting the operation information signal into a battery voltage or an open state voltage and providing the same to the connector. Vehicle electronic device further comprises a wealth.
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