KR20120048911A - Tpms sensor module - Google Patents

Tpms sensor module Download PDF

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Publication number
KR20120048911A
KR20120048911A KR1020100110380A KR20100110380A KR20120048911A KR 20120048911 A KR20120048911 A KR 20120048911A KR 1020100110380 A KR1020100110380 A KR 1020100110380A KR 20100110380 A KR20100110380 A KR 20100110380A KR 20120048911 A KR20120048911 A KR 20120048911A
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South Korea
Prior art keywords
sensor module
tire
tpms
transmission
tpms sensor
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KR1020100110380A
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Korean (ko)
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김민석
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주식회사 만도
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Priority to KR1020100110380A priority Critical patent/KR20120048911A/en
Publication of KR20120048911A publication Critical patent/KR20120048911A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/02—Signalling devices actuated by tyre pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/02—Signalling devices actuated by tyre pressure
    • B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
    • B60C23/0401—Signalling devices actuated by tyre pressure mounted on the wheel or tyre characterised by the type of alarm
    • B60C23/0405—Mechanically generated visible signals, e.g. by using a gauge needle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/02—Signalling devices actuated by tyre pressure
    • B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
    • B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
    • B60C23/0422—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver characterised by the type of signal transmission means
    • B60C23/0433—Radio signals
    • B60C23/0435—Vehicle body mounted circuits, e.g. transceiver or antenna fixed to central console, door, roof, mirror or fender
    • B60C23/0438—Vehicle body mounted circuits, e.g. transceiver or antenna fixed to central console, door, roof, mirror or fender comprising signal transmission means, e.g. for a bidirectional communication with a corresponding wheel mounted receiver
    • B60C23/0442—Vehicle body mounted circuits, e.g. transceiver or antenna fixed to central console, door, roof, mirror or fender comprising signal transmission means, e.g. for a bidirectional communication with a corresponding wheel mounted receiver the transmitted signal comprises further information, e.g. instruction codes, sensor characteristics or identification data
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/02—Signalling devices actuated by tyre pressure
    • B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
    • B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
    • B60C23/0422—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver characterised by the type of signal transmission means
    • B60C23/0433—Radio signals
    • B60C23/0435—Vehicle body mounted circuits, e.g. transceiver or antenna fixed to central console, door, roof, mirror or fender
    • B60C23/0444—Antenna structures, control or arrangements thereof, e.g. for directional antennas, diversity antenna, antenna multiplexing or antennas integrated in fenders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/02—Signalling devices actuated by tyre pressure
    • B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
    • B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
    • B60C23/0474—Measurement control, e.g. setting measurement rate or calibrating of sensors; Further processing of measured values, e.g. filtering, compensating or slope monitoring
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L17/00—Devices or apparatus for measuring tyre pressure or the pressure in other inflated bodies

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

PURPOSE: A TPMS sensor module is provided to secure frequency range and reduce power consumption through changing the RF(Radio Frequency) transmission mode transmitting the information of a tire. CONSTITUTION: A TPMS sensor module comprises a sensor unit, a control unit, and a RF transmitting unit. The sensor unit comprises a pressure sensor and a temperature sensor for a tire. The control unit conducts the overall control of the TPMS sensor module. The RF transmitting unit transmits the sensor information concerned with the sensed temperature and pressure of a tire by RF transmission according to the control unit. The RF transmitting unit is applied SSB-ASK transmission mode instead of DSB-ASK transmission mode or FSK transmission mode.

Description

티피엠에스 센서모듈{TPMS SENSOR MODULE}TPM SENSOR MODULE {TPMS SENSOR MODULE}

본 발명은 TPMS 센서모듈에 관한 것으로, 더욱 상세하게는 타이어의 압력을 감지하는 TPMS에 사용되는 TPMS 센서모듈에 관한 것이다.The present invention relates to a TPMS sensor module, and more particularly to a TPMS sensor module used in the TPMS for detecting the pressure of the tire.

일반적으로, 자동차를 운행하다 보면 타이어의 공기압이 낮아지는 것을 발견할 수 있는 데, 이것은 타이어 자체의 결함보다는 자동차가 운행되면서 자연 마찰로 인한 저항으로 공기가 고무를 자연투과하거나, 못박힘, 외상, 밸브 불량 등의 이상으로 공기가 배출되면서 공기압이 낮아지는 경우가 대부분이다.In general, when driving a car, it is possible to find that the tire air pressure is lowered, which is caused by natural friction of rubber, nailing, trauma, and valves due to the resistance caused by natural friction as the car is driven rather than a defect of the tire itself. In most cases, the air pressure is lowered as air is discharged due to defects.

타이어 공기압의 부족은 타이어의 이상 마멸을 초래하고, 브레이크 성능을 저하시킬 뿐만 아니라, 타이어의 펑크 등의 경제적 손실을 초래하는 외에 특히 고속주행에서는 운전자나 탑승객의 안전을 위협하는 요인이 된다.Insufficient tire air pressure may cause abnormal wear of the tire, reduce brake performance, and cause economic losses such as puncture of the tire, and also pose a threat to the safety of drivers and passengers, especially in high-speed driving.

그래서, 운전자들은 타이어의 공기압을 적정 수준으로 유지하고 타이어의 공기압이 균형있게 유지되도록 많은 신경을 써야 하며, 주기적으로 공기압 테스트를 실시해야 하는 번거로움이 있다.Thus, the driver has to pay much attention to keep the tire air pressure at an appropriate level, and the tire air pressure is balanced, and there is a need to periodically perform the air pressure test.

이러한 문제점을 해결하기 위한 장치가 자동차 타이어의 공기압을 측정하여 공기압이 부족한 경우 운전자에게 경고를 하는 타이어 압력 모니터링 시스템(Tire Pressure Monitoring System ; 이하 TPMS)이다.A device for solving this problem is a tire pressure monitoring system (TPMS) that measures the air pressure of a car tire and warns a driver when the air pressure is insufficient.

이러한 타이어 압력 모니터링 시스템(TPMS)은 타이어의 공기압과 온도 등을 감지하는 TPMS 센서모듈을 차량의 각 타이어에 장착하고, 이 TPMS 센서모듈을 통 해 감지된 각 타이어의 정보를 전송받아 해당 타이어의 정상 여부를 판정하는 TPMS 리시버를 차량 내부에 장착한다. 각 TPMS 센서모듈과 TPMS 리시버 간에 이루어지는 무선 통신을 통해 서로 간에 정보를 주고받는다.The tire pressure monitoring system (TPMS) is equipped with a TPMS sensor module that detects the air pressure and temperature of the tire on each tire of the vehicle, and receives the information of each tire detected through the TPMS sensor module to receive the normal tire. A TPMS receiver for determining whether or not is mounted inside the vehicle. Information is exchanged with each other through wireless communication between each TPMS sensor module and the TPMS receiver.

이러한 각 TPMS 센서모듈은 TPMS 리시버에 RF(Radio Frequency) 통신 방법으로 타이어 공기압에 관한 정보를 전송한다.Each of these TPMS sensor modules transmits the tire pressure information to the TPMS receiver by a radio frequency (RF) communication method.

하지만, 기존의 TPMS 센서모듈은 TPMS 리시버에 RF(Radio Frequency) 통신 방법 중에서 양측파대 진폭변조 전송(Dual Side Band Amplitude Shift Keying Transmission)(DSB-ASK 전송)방식이나 주파수 변이 전송 방식(Frequency Shifting Key Transmission)(FSK 전송)방식을 이용하여 타이어 공기압에 관한 정보를 전송하기 때문에 전력소모가 많고 주파수 대역폭을 많이 차지하는 문제점이 있다.However, the existing TPMS sensor module uses Dual Side Band Amplitude Shift Keying Transmission (DSB-ASK) or Frequency Shifting Key Transmission among RF (Radio Frequency) communication methods to the TPMS receiver. Since the information about the tire pressure is transmitted using the (FSK transmission) method, there is a problem in that it consumes a lot of power and occupies a lot of frequency bandwidth.

본 발명의 일 측면은 타이어 압력정보를 송신하는 RF 통신 방식을 변경하여 전력소모를 줄이고 주파수 대역폭을 확보할 수 있는 TPMS 센서모듈을 제공한다.One aspect of the present invention provides a TPMS sensor module that can reduce the power consumption and secure the frequency bandwidth by changing the RF communication method for transmitting tire pressure information.

이를 위해 본 발명의 일 측면에 따른 TPMS 센서모듈은 TPMS 리시버에 정보를 무선 전송하는 TPMS 센서모듈에 있어서, 차량의 타이어 압력정보를 감지하는 센서부와, 상기 센서부를 통해 감지된 타이어 압력정보를 RF 송신하는 RF 송신부를 포함하고, 상기 RF 송신부는 상기 감지된 타이어 압력정보를 단측파대전송(SSB-ASK)전송방식을 이용하여 송신하는 것을 포함한다.To this end, the TPMS sensor module according to an aspect of the present invention is a TPMS sensor module for wirelessly transmitting information to the TPMS receiver, the sensor unit for detecting tire pressure information of the vehicle, and the tire pressure information detected through the sensor RF And an RF transmitter for transmitting, wherein the RF transmitter includes transmitting the sensed tire pressure information using a single sideband transmission (SSB-ASK) transmission scheme.

또한, 상기 RF 송신부는 상기 SSB ASK 전송방식에서 상측파대 주파수를 이용하여 정보를 변조하여 송신하는 것을 포함한다.In addition, the RF transmitter includes modulating and transmitting information by using an upper band frequency in the SSB ASK transmission scheme.

또한, 상기 RF 송신부는 상기 SSB ASK 전송에서 하측파대 주파수를 이용하여 정보를 변조하여 송신하는 것을 포함한다.The RF transmitter may include modulating and transmitting information by using a lower band frequency in the SSB ASK transmission.

이상에서 설명한 본 발명의 일 측면에 따르면, TPMS 센서모듈의 RF 송신부의 데이터 전송방식을 양측파대 전송방식이나 주파수 변이 전송방식 대신에 전력소모 및 주파수 대역폭 확보가 가능한 단측파대 전송방식으로 변경함으로써 불필요한 전송을 줄일 수 있는 전력소모를 줄일 수 있고 상측파대 혹은 하측파대 주파수만을 변조하여 송신하기 때문에 주파수 대역폭을 확보할 수 있다.According to an aspect of the present invention described above, unnecessary transmission by changing the data transmission method of the RF transmitter of the TPMS sensor module to a single sideband transmission method capable of securing power consumption and frequency bandwidth instead of the two-side band transmission method or the frequency shift transmission method. The power consumption can be reduced, and the frequency bandwidth can be secured because only the upper or lower band frequency is modulated and transmitted.

도 1은 본 발명의 일실시예에 따른 TPMS 센서모듈이 적용되는 타이어 압력 모니터링 시스템의 개념을 설명하기 위한 개념도이다.
도 2는 본 발명의 일실시예에 따른 TPMS 센서모듈이 적용되는 타이어 압력 모니터링 시스템의 차량 장착을 설명하기 위한 도면이다.
도 3은 본 발명의 일실시예에 따른 TPMS 센서모듈의 제어블록도이다.
도 4는 본 발명의 일실시예에 따른 TPMS 센서모듈의 RF 송신부에서 상측파대 주파수를 사용하는 것을 설명하기 위한 도면이다.
도 5는 본 발명의 일실시예에 따른 TPMS 센서모듈의 RF 송신부에서 하측파대 주파수를 사용하는 것을 설명하기 위한 도면이다.1 is a conceptual diagram illustrating a concept of a tire pressure monitoring system to which a TPMS sensor module is applied according to an embodiment of the present invention.
2 is a view for explaining the vehicle mounting of the tire pressure monitoring system to which the TPMS sensor module according to an embodiment of the present invention is applied.
3 is a control block diagram of a TPMS sensor module according to an embodiment of the present invention.
4 is a view for explaining the use of the upper band frequency in the RF transmitter of the TPMS sensor module according to an embodiment of the present invention.
5 is a view for explaining the use of the lower band frequency in the RF transmitter of the TPMS sensor module according to an embodiment of the present invention.

이하, 첨부된 도면을 참조하여 본 발명의 실시예에 대해 설명한다.Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

도 1은 본 발명의 일실시예에 따른 TPMS 센서모듈이 적용되는 타이어 압력 모니터링 시스템의 개념을 설명하기 위한 개념을 나타낸 도면이다. 도 2는 본 발명의 일실시예에 따른 TPMS 센서모듈이 적용되는 타이어 압력 모니터링 시스템의 차량 장착을 설명하기 위한 도면이다.1 is a view showing a concept for explaining the concept of the tire pressure monitoring system to which the TPMS sensor module according to an embodiment of the present invention is applied. 2 is a view for explaining the vehicle mounting of the tire pressure monitoring system to which the TPMS sensor module according to an embodiment of the present invention is applied.

도 1 및 도 2에 도시된 바와 같이, 타이어 압력 모니터링 시스템은 차량(1)의 각 바퀴(FL,FR,RL,RR)의 타이어에 설치되어 각 타이어의 압력을 검출하여 무선 송신하는 TPMS 센서모듈(10)과, 이 TPMS 센서모듈(10)에서 송출되는 각 타이어의 센서 정보를 전송받아 해당 타이어의 이상 여부를 판정하는 TPMS 리시버(20)를 포함한다.1 and 2, the tire pressure monitoring system is installed on the tires of the wheels (FL, FR, RL, RR) of the vehicle 1 to detect and wirelessly transmit the pressure of each tire TPMS sensor module 10 and a TPMS receiver 20 which receives sensor information of each tire sent from the TPMS sensor module 10 and determines whether the tire is abnormal.

TPMS 센서모듈(10)은 타이어의 압력, 온도 등의 센서정보를 감지하고, 감지된 센서정보를 무선 신호로 변조하여 송신한다.The TPMS sensor module 10 detects sensor information such as pressure and temperature of a tire, modulates the detected sensor information into a wireless signal, and transmits the detected sensor information.

특히 TPMS 센서모듈(10)는 타이어의 센서정보를 양측파대 진폭변조 전송(Dual Side Band Amplitude Shift Keying Transmission)(이하 DSB-ASK 전송)방식이나 주파수 변이 전송 방식(Frequency Shifting Key Transmission)(FSK 전송)방식 대신에 전력소모가 적고 보다 넓은 주파수 대역폭 확보가 가능한 단측파대전송(Single Side Band Amplitude Shift Keying Transmission)(이하 SSB-ASK 전송)방식을 이용하여 송신한다.In particular, the TPMS sensor module 10 transmits sensor information of a tire to a dual side band amplitude shift keying transmission (hereinafter referred to as DSB-ASK transmission) or a frequency shifting key transmission (FSK transmission). Instead of the method, it transmits using Single Side Band Amplitude Shift Keying Transmission (hereinafter referred to as SSB-ASK transmission), which consumes less power and secures a wider frequency bandwidth.

TPMS 리시버(20)는 각 바퀴에 설치된 4개의 TPMS 센서모듈(10)로부터 소정거리 이격된 위치에 마련되어 각 TPMS 센서모듈(10)에서 송신되는 타이어압력과 온도와 관련된 무선신호를 수신한다.The TPMS receiver 20 is provided at a position separated by a predetermined distance from four TPMS sensor modules 10 installed on each wheel to receive a wireless signal related to tire pressure and temperature transmitted from each TPMS sensor module 10.

또한, TPMS 리시버(20)는 수신된 무선신호를 근거로 하여 각 타이어의 압력이상을 감지하고, 감지결과 타이어에 이상이 발생한 경우에는 이를 표시장치에 표시하여 운전자에게 경고한다.In addition, the TPMS receiver 20 detects a pressure abnormality of each tire based on the received wireless signal, and if an abnormality occurs in the tire as a result of the detection, the TPMS receiver 20 warns the driver by displaying it on the display device.

도 3은 본 발명의 일실시예에 따른 TPMS 센서모듈의 제어블록을 나타낸 도면이다.3 is a view showing a control block of the TPMS sensor module according to an embodiment of the present invention.

도 3에 도시된 바와 같이, TPMS 센서모듈(10)은 센서부(11), 제어부(12) 및 RF 송신부(13)를 포함한다.As shown in FIG. 3, the TPMS sensor module 10 includes a sensor unit 11, a control unit 12, and an RF transmitter 13.

센서부(11)는 타이어의 압력을 검출하기 위한 압력센서와 타이어의 온도를 감지하는 온도센서 등을 포함한다.The sensor unit 11 includes a pressure sensor for detecting the pressure of the tire and a temperature sensor for detecting the temperature of the tire.

제어부(12)는 TPMS 센서모듈(10)의 전반적인 제어를 수행한다.The controller 12 performs overall control of the TPMS sensor module 10.

RF 송신부(13)는 제어부(12)의 제어신호에 따라 센서부(11)를 통해 감지된 타이어 압력과 온도와 관련된 무선신호 등의 센서정보를 RF 송신한다.The RF transmitter 13 RF transmits sensor information such as a wireless signal related to tire pressure and temperature detected through the sensor unit 11 according to a control signal of the controller 12.

RF 송신부(13)는 센서부(11)를 통해 감지된 타이어의 센서정보를 DSB-ASK 전송방식이나 FSK 전송방식 대신에 SSB-ASK 전송 방식을 이용하여 송신한다.The RF transmitter 13 transmits the sensor information of the tire detected by the sensor unit 11 using the SSB-ASK transmission method instead of the DSB-ASK transmission method or the FSK transmission method.

DSB-ASK 전송은 진폭 변조된 신호를 퓨리에 변환을 거치면 동일한 정보량의 상하측파대가 생성되는데, 이 때, 양쪽측파대 즉, 상하측파대 모두를 전송하는 방식이다. 이러한 DSB-ASK 전송은 반송파, 상/하측파대 신호를 동시에 전송하므로 점유주파수 대역이 넓고, 반송파와 신호파를 동시에 수신하므로 별도의 발진회로가 필요없지만, 전력소비가 크고, 이에 따른 효율이 낮은 단점이 있다.In the DSB-ASK transmission, when the amplitude-modulated signal is subjected to Fourier transform, the upper and lower bands of the same information amount are generated. In this case, both side bands, that is, the upper and lower bands, are transmitted. Since DSB-ASK transmission simultaneously transmits carrier and upstream / lower sideband signals, the occupied frequency band is wider and the carrier and signal wave are received at the same time, so there is no need for a separate oscillation circuit. However, the power consumption is high and the efficiency is low. There is this.

또한, FSK 전송은 2진 데이터를 하나의 캐리어로 합치는 단순한 주파수 변조를 통한 전송 기술이다. 이것은 주파수 내에서 0과 1의 오직 두개의 변화만을 만든다. 장점으로는 잡음에 대한 면역성이 강하고, 연속진폭의 특성을 가지므로 레벨 변동에 강하다. 하지만, 광대역을 필요하여 주파수 대역폭이 커지는 문제점이 있다.FSK transmission is also a transmission technique through simple frequency modulation that combines binary data into one carrier. This makes only two changes of zero and one in frequency. Its advantages are strong immunity to noise and strong level fluctuations due to its characteristic of continuous amplitude. However, there is a problem in that the frequency bandwidth is increased because a wide bandwidth is required.

한편, SSB 전송은 진폭 변조된 신호를 퓨리에 변환을 거치면 동일한 정보량의 상하측파대가 생성되는데, 이때, 상하측파대중 필터를 이용 한쪽 측파대만을 전송하는 것이다. 즉, DSB-ASK 전송에서 상측파대 혹은 하측파대 중 어느 한 쪽 측파대만을 전송하는 것이다(도 4 및 도 5 참조).On the other hand, in SSB transmission, when the amplitude-modulated signal is subjected to Fourier transform, upper and lower bands having the same information amount are generated. In this case, only one side band is transmitted using a filter among upper and lower bands. That is, only one side band of the upper band or the lower band is transmitted in the DSB-ASK transmission (see FIGS. 4 and 5).

SSB-ASK 전송은 주파수의 대역이 좁아 다중 통신에 적합하고, 반송파가 제거 되므로 송신기의 전력 소비가 적어 반송파에 의한 채널사이의 혼변조가 제거되어 에너지 효율이 높다.SSB-ASK transmission has a narrow frequency band, which is suitable for multi-communication. Since carriers are eliminated, power consumption of the transmitter is low, and intermodulation between channels by carriers is eliminated, resulting in high energy efficiency.

따라서 본 발명의 일실시예에 따른 TPMS 센서모듈은 타이어의 센서정보를 SSB-ASK 전송방식을 이용하여 TPMS 리시버(20)에 송신하기 때문에 기존에 비해 전력소모가 적고 주파수 대역폭을 넓게 확보 가능한 장점이 있다.Therefore, the TPMS sensor module according to an embodiment of the present invention transmits the sensor information of the tire to the TPMS receiver 20 by using the SSB-ASK transmission method, thereby reducing power consumption and securing a wider frequency bandwidth than the conventional method. have.

TPMS 리시버(20)는 안테나(21)와 TPMS 리시버(20)의 전반적인 제어를 수행하는 제어부(22)를 포함한다. 안테나(21)는 TPMS 센서모듈(10)와의 정보 교환을 위한 것으로, 제어부(22)는 안테나(21)를 통해 수신된 각 바퀴의 타이어의 센서정보를 이용하여 각 바퀴의 타이어 압력이나 온도 등의 이상을 감지하고, 이상인 타이어가 발생한 경우 이를 표시장치에 표시하여 운전자에게 경고한다.The TPMS receiver 20 includes a controller 22 that performs overall control of the antenna 21 and the TPMS receiver 20. The antenna 21 is for exchanging information with the TPMS sensor module 10, and the controller 22 uses the sensor information of the tire of each wheel received through the antenna 21, such as tire pressure or temperature of each wheel. It detects an abnormality and warns the driver by displaying the abnormal tire on the display device.

10 : TPMS 센서모듈 11 : 센서부
12 : 제어부 13 : RF 송신부10: TPMS sensor module 11: sensor
12 control unit 13 RF transmitter

Claims (3)

TPMS 리시버에 정보를 무선 전송하는 TPMS 센서모듈에 있어서,
차량의 타이어 압력정보를 감지하는 센서부와,
상기 센서부를 통해 감지된 타이어 압력정보를 RF 송신하는 RF 송신부를 포함하고,
상기 RF 송신부는 상기 감지된 타이어 압력정보를 단측파대전송(SSB-ASK)전송방식을 이용하여 송신하는 것을 포함하는 TPMS 센서모듈.In the TPMS sensor module for wirelessly transmitting information to the TPMS receiver,
Sensor unit for detecting the tire pressure information of the vehicle,
An RF transmitter for RF transmission of the tire pressure information detected through the sensor unit,
The RF transmitter comprises a TPMS sensor module for transmitting the sensed tire pressure information using a single side band transmission (SSB-ASK) transmission method. 제1항에 있어서,
상기 RF 송신부는 상기 SSB ASK 전송방식에서 상측파대 주파수를 이용하여 정보를 변조하여 송신하는 것을 포함하는 TPMS 센서모듈.The method of claim 1,
The RF transmitter is a TPMS sensor module comprising modulating and transmitting information using the upper band frequency in the SSB ASK transmission scheme. 제1항에 있어서,
상기 RF 송신부는 상기 SSB ASK 전송에서 하측파대 주파수를 이용하여 정보를 변조하여 송신하는 것을 포함하는 TPMS 센서모듈.The method of claim 1,
The RF transmitter TPMS sensor module comprising modulating and transmitting information by using a lower band frequency in the SSB ASK transmission.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150066079A (en) 2013-12-06 2015-06-16 현대자동차주식회사 Self-generation apparatus and Tire pressure monitoring system having the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150066079A (en) 2013-12-06 2015-06-16 현대자동차주식회사 Self-generation apparatus and Tire pressure monitoring system having the same

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