KR20050121573A - Transmitter for tpms in vehicle - Google Patents
Transmitter for tpms in vehicle Download PDFInfo
- Publication number
- KR20050121573A KR20050121573A KR1020040046740A KR20040046740A KR20050121573A KR 20050121573 A KR20050121573 A KR 20050121573A KR 1020040046740 A KR1020040046740 A KR 1020040046740A KR 20040046740 A KR20040046740 A KR 20040046740A KR 20050121573 A KR20050121573 A KR 20050121573A
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- tire
- antenna
- data
- transmitting
- transmitter
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Classifications
-
- 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
-
- 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
- B60C23/0447—Wheel or tyre mounted circuits
- B60C23/0452—Antenna structure, control or arrangement
-
- 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
- B60C23/0447—Wheel or tyre mounted circuits
- B60C23/0455—Transmission control of wireless signals
-
- 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
- B60C23/0447—Wheel or tyre mounted circuits
- B60C23/0455—Transmission control of wireless signals
- B60C23/0464—Transmission control of wireless signals to avoid signal interference
Abstract
본 발명은 차량의 각 타이어에 장착되어 상기 타이어의 상태를 감지한 데이터를 송신 안테나를 통해 무선 송신하는 타이어압 모니터링 시스템용 무선 송신기에 있어서, 수신 안테나와, 상기 수신 안테나에서 무선 신호가 수신되는지 판단하여 상기 수신 안테나에서 무선 신호가 수신되지 않으면 상기 송신 안테나로 감지 데이터를 송신하는 제어부를 포함하는 것을 특징으로 한다. 이에 의하여, 각 타이어에 마련된 무선 송신기들의 송신 데이터가 충돌되는 것을 하드웨어적으로 막으므로 송신 데이터의 충돌에 의한 데이터의 손실을 막을 수 있다. The present invention relates to a wireless transmitter for a tire pressure monitoring system mounted on each tire of a vehicle and wirelessly transmitting data detecting the state of the tire through a transmitting antenna, wherein the receiving antenna and the receiving antenna determine whether a wireless signal is received. And a control unit for transmitting the sensed data to the transmitting antenna when the radio signal is not received from the receiving antenna. As a result, since the transmission data of the wireless transmitters provided in the tires are prevented from being collided in hardware, data loss due to the collision of the transmission data can be prevented.
Description
본 발명은 타이어압 모니터링 시스템에 관한 것으로서, 보다 상세하게는 차량의 타이어의 상태를 감지하는 타이어압 모니터링 시스템용 무선 송신기에 관한 것이다.The present invention relates to a tire pressure monitoring system, and more particularly, to a wireless transmitter for a tire pressure monitoring system for detecting a state of a tire of a vehicle.
현재 상용화가 추진되고 있는 타이어압 모니터링 시스템(TPMS:Tire Pressure Monitoring System; 이하 TPMS라 칭함)은 타이어에 부착된 센서로 압력과 온도를 감지하고 이를 담은 데이터를 실시간으로 운전석 앞까지 송신, 운전자가 실시간으로 타이어의 압력상태를 점검할 수 있도록 해주는 시스템이다. 도 1을 참조하여 TPMS의 구성을 살펴보면, 타이어의 압력과 온도를 감지하는 센서를 구비하여 감지신호를 무선 송신하는 TPM 무선 송신기(11~14), TPM 무선 송신기의 신호를 수신하여 복원하는 수신기(15), 수신기(15)에서 복원된 현재 타이어의 압력 데이터를 표시하는 표시부(16)를 포함한다. Tire Pressure Monitoring System (TPMS), which is currently being commercialized, is a sensor attached to a tire that detects pressure and temperature and transmits the data in front of the driver's seat in real time. It is a system to check the pressure state of tires. Looking at the configuration of the TPMS with reference to Figure 1, a TPM radio transmitter (11-14) for wirelessly transmitting a detection signal with a sensor for detecting the pressure and temperature of the tire, a receiver for receiving and restoring the signal of the TPM radio transmitter ( 15), the display unit 16 for displaying the pressure data of the current tire restored by the receiver 15.
이러한 TPMS에서 타이어 내의 송신기에서 압력 데이터를 송신시 전후좌우의 타이어에 대한 압력 데이터 4개와 비상용 타이어의 압력 데이터 1개가 차량내 송신기로 송신된다. 이때 도 2에 도시된 바와 같이, 각 송신 데이터가 서로 충돌할 수 있다. 이러한 송신 데이터의 충돌을 방지하기 위해서, 보통 랜덤 넘버 제너레이터(random number generator)를 사용하여 송신 데이터 송신시간을 각 송신기마다 랜덤하게 정하여 송신하는 소프트웨어적인 방법을 사용한다. In this TPMS, when pressure data is transmitted from a transmitter in a tire, four pressure data for front, rear, left, and right tires and one pressure data for an emergency tire are transmitted to the in-vehicle transmitter. In this case, as shown in FIG. 2, each transmission data may collide with each other. In order to prevent such collision of transmission data, a software method of using a random number generator (random number generator) is usually used to randomly set transmission data transmission time for each transmitter.
그런데, 종래의 소프트웨어적으로 송신 데이터의 충돌을 방지하는 것은 충돌의 확률을 줄이는 기술로서, 낮은 확률이라도 데이터 충돌이 발생할 경우 충돌된 데이터가 손실되는 것은 근본적으로 막을 수 없다. 또한, 랜덤 넘버 제너레이터를 구현하기 위해 하드웨어 내지는 소프트웨어적으로 복잡한 구성이 요구된다.However, the conventional software is to prevent the collision of the transmission data is a technique to reduce the probability of collision, even if a low probability of collision of data is not fundamentally prevented from being lost. In addition, a complex configuration in hardware or software is required to implement the random number generator.
이에 본 발명은 상기와 같은 문제점을 해소하기 위해 안출된 것으로, 각 타이어에 마련된 송신기들의 송신 데이터가 충돌되는 것을 하드웨어적으로 차단하는 타이어압 모니터링 시스템용 무선 송신기를 제공함에 그 목적이 있다. 또한, 송신 데이터의 충돌없는 전송처리를 간단한 소프트웨어/하드웨어로 구현 가능한 무선 송신기를 제공함에 그 목적이 있다. Accordingly, an object of the present invention is to provide a wireless transmitter for a tire pressure monitoring system, which is designed to solve the above problems, and to block hardware collisions of transmission data of transmitters provided in each tire. It is also an object of the present invention to provide a wireless transmitter capable of implementing collision-free transmission processing of transmission data with simple software / hardware.
상기와 같은 목적을 달성하기 위한 본 발명은, 차량의 각 타이어에 장착되어 상기 타이어의 상태를 감지한 데이터를 송신 안테나를 통해 무선 송신하는 차량의 타이어압 모니터링 시스템용 무선 송신기에 있어서, 수신 안테나와, 상기 수신 안테나에서 무선 신호가 수신되는지 판단하여 상기 수신 안테나에서 무선 신호가 수신되지 않으면 상기 송신 안테나로 감지 데이터를 송신하는 제어부를 포함하는 것에 의해 달성된다.According to an aspect of the present invention, there is provided a wireless transmitter for a tire pressure monitoring system for a vehicle, which is mounted on each tire of a vehicle to wirelessly transmit data detected by the tire through a transmission antenna. And a control unit for determining whether a wireless signal is received at the receiving antenna and transmitting sensing data to the transmitting antenna when the wireless signal is not received at the receiving antenna.
여기서, 상기 수신 안테나에서 수신된 무선 신호를 증폭하는 앰프와, 상기 수신 안테나의 동작을 온오프 시키는 트랜지스터를 포함하며; 상기 제어부는 상기 송신 안테나로 상기 감지 데이터를 송신시 상기 트랜지스터를 오프시키는 것이 바람직하다.An amplifier for amplifying a wireless signal received at the receiving antenna, and a transistor for turning on and off an operation of the receiving antenna; Preferably, the control unit turns off the transistor when transmitting the sensed data to the transmitting antenna.
이하 본 발명을 첨부된 예시도면에 의거 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
도 3은 본 발명에 따른 TPMS의 송신기의 내부 구성도이다. 도 3에 도시된 바와 같이, 차량의 각 타이어에 장착되는 무선 송신기(10)에 수신 안테나(1)와 앰프(2)와 트랜지스터(4) 및 제어부(3)를 연결한다. 여기서, 제어부(3)는 수신 안테나(1)의 수신상태를 감지하여 동작하는 스테이트 머신이다. 3 is an internal configuration diagram of a transmitter of a TPMS according to the present invention. As shown in FIG. 3, the reception antenna 1, the amplifier 2, the transistor 4, and the controller 3 are connected to a wireless transmitter 10 mounted on each tire of the vehicle. Here, the control unit 3 is a state machine which operates by sensing the reception state of the reception antenna 1.
수신 안테나(1)에서 RF신호가 수신되면 수신된 RF신호가 앰프(4)를 통해 마이컴(3)으로 입력된다. 이때, 제어부(3)는 다른 타이어의 무선 송신기에서 신호를 송신중인 것으로 판단하고, 데이터의 송신을 중단한다. 그리고, 수신 안테나(1)에서 RF신호가 수신되지 않으면 자신의 송신 데이터를 송신 안테나(5)를 통해 송신한다. When the RF signal is received at the reception antenna 1, the received RF signal is input to the microcomputer 3 through the amplifier 4. At this time, the control unit 3 determines that the radio transmitter of the other tire is transmitting a signal and stops transmitting data. If the RF signal is not received by the reception antenna 1, the transmission data thereof is transmitted through the transmission antenna 5.
여기서, 마이컴(3)은 송신 데이터를 송신하기 전에 수신 안테나(1)에 연결된 트랜지스터(4)를 턴오프시켜서, 다른 차량의 타이어에 부착된 송신 데이터의 수신을 차단하고, 송신 안테나(5)를 통해 자신의 송신 데이터를 송신한 후에 다시 트랜지스터(4)를 턴온시킨다. Here, the microcomputer 3 turns off the transistor 4 connected to the reception antenna 1 before transmitting the transmission data, interrupts reception of transmission data attached to the tire of another vehicle, and turns off the transmission antenna 5. The transistor 4 is turned on again after transmitting its own transmission data.
위의 구성에 따라, 각 타이어에 장착되는 무선 송신기(10)는 다른 무선 송신기에서 데이터의 송신이 끝나면 자신의 송신 데이터를 송신하므로 각 무선 송신기의 데이터의 전송이 랜덤하게 이루어진다. According to the above configuration, since the radio transmitter 10 mounted on each tire transmits its own transmission data after the transmission of the data from other radio transmitters, the data of each radio transmitter is randomly transmitted.
이러한 구성에 의하여, 차량의 각 타이어에 장착되는 무선 송신기에 수신 안테나와 앰프 및 트랜지스터를 추가함으로써, 수신 안테나에서 다른 무선 송신기의 송신 데이터가 수신되는 동안은 자신의 송신 데이터를 송신하는 것을 중단하고 있다가, 수신 안테나에서 다른 무선 송신기의 송신 데이터가 수신되지 않으면 자신의 송신 데이터를 송신한다. 이에 따라, 차량의 각 타이어에 장착되는 무선 송신기들 간의 송신 데이터의 충돌이 방지된다. 아울러, 송신기에서 송신 데이터의 전송 처리를 마이컴이 아니라 스테이트 머신과 같은 간단한 소프트웨어로 구현하여 송신기의 제조비용이 감소된다.By this configuration, by adding a receiving antenna, an amplifier, and a transistor to a radio transmitter mounted on each tire of the vehicle, transmission of its own transmission data is stopped while receiving data of another radio transmitter is received at the reception antenna. If the reception antenna does not receive transmission data of another radio transmitter, it transmits its own transmission data. Thus, collision of transmission data between radio transmitters mounted on each tire of the vehicle is prevented. In addition, the manufacturing cost of the transmitter is reduced by implementing the transmission processing of the transmission data in the transmitter by using simple software such as a state machine rather than a microcomputer.
이상 설명한 바와 같이 본 발명에 의하면, 각 타이어에 마련된 송신기들의 송신 데이터가 충돌되는 것을 하드웨어적으로 막으므로 송신 데이터의 충돌에 의한 데이터 손실을 막을 수 있다. 또한, 무선 송신기에서 송신 데이터의 충돌없는 전송처리를 간단한 소프트웨어/하드웨어로 구현할 수 있게 된다.As described above, according to the present invention, since transmission data of transmitters provided in each tire is prevented from being collided in hardware, data loss due to collision of transmission data can be prevented. In addition, it is possible to implement a collision-free transmission process of the transmission data in the wireless transmitter with simple software / hardware.
도 1은 일반적인 차량의 TPMS 구성도,1 is a configuration diagram of a typical vehicle TPMS;
도 2는 도 1의 TPMS 송신기들간의 송신 데이터의 충돌을 도시한 도면,2 is a diagram illustrating a collision of transmission data between TPMS transmitters of FIG. 1;
도 3은 본 발명에 따른 차량의 TPMS 송신기의 구성도, 3 is a block diagram of a TPMS transmitter of a vehicle according to the present invention;
< 도면의 주요부분에 대한 부호의 설명 ><Description of Symbols for Major Parts of Drawings>
1 : 수신 안테나 2 : 앰프1: receiving antenna 2: amplifier
3 : 마이컴 4 : 트랜지스터 3: micom 4: transistor
5 : 송신 안테나 10 : 무선 송신기5: transmitting antenna 10: radio transmitter
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040046740A KR20050121573A (en) | 2004-06-22 | 2004-06-22 | Transmitter for tpms in vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040046740A KR20050121573A (en) | 2004-06-22 | 2004-06-22 | Transmitter for tpms in vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20050121573A true KR20050121573A (en) | 2005-12-27 |
Family
ID=37293700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020040046740A KR20050121573A (en) | 2004-06-22 | 2004-06-22 | Transmitter for tpms in vehicle |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20050121573A (en) |
-
2004
- 2004-06-22 KR KR1020040046740A patent/KR20050121573A/en not_active Application Discontinuation
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