TWI872455B - A rechargeable tire pressure detection system and method thereof - Google Patents

Abstract

A rechargeable tire pressure detection system and method thereof, include an antenna transceiver unit and an acquisition unit connected by electrical connnect, receiving electromagnetic waves through the antenna transceiver unit and converting the electromagnetic waves into electrical energy by the acquisition unit and to charge the tire pressure detection system.

Description

Rechargeable tire pressure detection system and method thereof

The present invention relates to the field of vehicle tire pressure detection technology, and in particular to a rechargeable tire pressure detection system and method thereof.

Driving safety is the primary consideration for drivers when driving on the road, and tire pressure has a great impact on the vehicle's condition. The tires must have normal tire pressure to allow the vehicle to drive smoothly. Too high or too low tire pressure may cause a blowout or puncture, seriously affecting the stability of the vehicle's driving and threatening the driver's road safety. Therefore, tire pressure monitoring is important for driving safety. However, the traditional method of measuring tire pressure requires the vehicle to be stopped before it can be carried out. It is impossible to know the changes in the vehicle's tire pressure while driving in real time. If the tire is abnormal while driving, the driver cannot respond immediately.

With the rapid development of technology, the automobile industry has also developed many high-tech equipment. For driving safety, tire pressure detection devices are usually installed on car tires. The tire pressure detection device has the function of sensing tire pressure data. The data is transmitted to the display in the car through the tire pressure detection device. The driver can grasp the current tire pressure status at any time, which can avoid traffic accidents caused by insufficient tire pressure.

When the current known tire pressure detection device is low on power, the driver may misjudge the tire pressure and cause an accident. Please refer to the patents, TW Patent Certificate No. M335410 and TW Patent Certificate No. M405977 disclose tire pressure sensors installed inside the tire to detect tire pressure, but when the vehicle is driving, the friction between the tire and the ground will generate high temperature. The tire pressure detection device needs a high degree of airtightness in the high temperature environment inside the tire. Therefore, the housing of the tire pressure detection device, the sensing unit and the battery are assembled and the housing is sealed to ensure its airtightness. In other words, once the battery of the tire pressure detection device of the known patent is exhausted and cannot be used any longer, even if the sensor itself is not faulty or damaged, a new tire pressure sensor must be purchased, which increases the driver's usage cost and creates unnecessary waste, which is quite environmentally unfriendly.

The present invention is a rechargeable tire pressure detector system and method thereof, the main purpose of which is to provide an antenna transceiver unit to convert electromagnetic wave energy into electrical energy and charge the tire pressure detector, thereby improving the defect that the conventional tire pressure detector cannot be charged when the battery is exhausted.

In order to achieve the above-mentioned purpose and improve the lack of knowledge, the present invention provides a rechargeable tire pressure detection system, including an antenna transceiver unit, which receives an electromagnetic wave and transmits it to a capture unit. The capture unit converts the electromagnetic wave into electric energy and charges a tire pressure detector. A main control unit has a tire pressure monitoring sensing unit, a signal calculation unit and a transmission unit that are mutually connected by telecommunications. The tire pressure monitoring sensing unit senses a tire pressure sensing signal and generates a tire pressure status signal through the signal calculation unit, and then transmits the tire pressure status signal to the antenna transceiver unit through the transmission unit.

In order to achieve the above-mentioned purpose and improve the lack of knowledge, the present invention provides a rechargeable tire pressure detection method, including: an antenna transceiver step, receiving an electromagnetic wave. An electromagnetic wave transceiver step, receiving the electromagnetic wave of the antenna transceiver step. An energy conversion step, receiving the electromagnetic wave of the electromagnetic wave transceiver step and converting it into electric energy. An energy storage step, receiving the electric energy of the energy conversion step and storing it. A charging step, receiving the electric energy of the energy storage step and charging a tire pressure detector. A tire pressure sensing step, sensing a vehicle tire pressure and generating a tire pressure sensing signal. A tire pressure transmission step, transmitting the tire pressure sensing signal of the tire pressure sensing step.

1: Tire pressure monitoring system

10: Antenna transceiver unit

20: Capture unit

21: Impedance matching unit

22: Rectification conversion unit

23: Energy management unit

30: Main control unit

31: Tire pressure monitoring sensor unit

32: Signal operation unit

33: Transmission unit

40: On-board unit

S1~S7: Steps

The first figure is a circuit block diagram of the tire pressure detection system of the present invention.

The second figure is a circuit block diagram of the acquisition unit of the tire pressure detection system of the present invention.

The third figure is a circuit block diagram of the main control unit of the tire pressure detection system of the present invention.

The fourth figure is a flow chart of the steps of the tire pressure detection system method of the present invention.

The detailed description and technical content of the present invention are now described in conjunction with the drawings as follows: Please refer to the first to fourth figures, the rechargeable tire pressure detection system of the present invention includes: a circuit substrate (not shown) having an upper surface layer and a lower surface layer, and the upper surface layer and the lower surface layer are configured with an antenna transceiver unit 10, a capture unit 20 and a main control unit 30 that are mutually connected in telecommunication.

The antenna transceiver unit 10 receives electromagnetic waves in the atmosphere. Specifically, the antenna transceiver unit 10 has a transmitter and a receiver (not shown). The transmitter applies current or voltage to the antenna to generate an electromagnetic field and converts the energy of the current into electromagnetic waves.

When the electric current is converted into electromagnetic waves, the radiation power of the electromagnetic waves is received by the receiver. In this embodiment, the received electromagnetic waves may be generated by a base station, a mobile phone or a communication device.

The capture unit 20 captures the electromagnetic waves in the antenna transceiver unit 10 and converts them into electrical energy. Specifically, the capture unit 20 has an impedance matching unit 21, a rectifier conversion unit 22 and an energy management unit 23 that are interconnected. The impedance matching unit 21 adjusts the antenna input impedance and the transmitter and receiver output impedance to a matching degree to avoid reflection loss (Return Loss) caused by impedance mismatch. The rectifier conversion unit 22 converts the radiation power of the electromagnetic wave into a DC power signal for use as electrical energy and stores it in the energy management unit 23. In this embodiment, the rectifier conversion unit 22 is an AC-DC converter, and the energy management unit 23 is composed of at least one capacitor.

The main control unit 30 has a tire pressure monitoring sensing unit 31, a signal calculation unit 32 and a transmission unit 33 which are interconnected by telecommunication. The tire pressure monitoring sensing unit 31 senses the tire pressure state of the vehicle and transmits a tire pressure sensing signal to the signal calculation unit 32. The signal calculation unit 32 calculates the tire pressure sensing signal to generate a tire state signal, and then transmits the tire state signal to the antenna transceiver unit 10 through the transmission unit 33. In this embodiment, the tire state signal can be a signal such as pressure, temperature, gravity and voltage.

Furthermore, the rechargeable tire pressure monitoring system of the present invention also includes a vehicle-mounted unit 40 that is telecommunication-connected to the antenna transceiver unit 10, and the driver can grasp the tire status at any time through the vehicle-mounted unit 40. In this embodiment, the vehicle-mounted unit 40 can be a display device, a mobile phone, a laptop, or other communication equipment in the vehicle.

Accordingly, the rechargeable tire pressure monitoring system of the present invention has at least two radiation elements, one of which is the energy transfer of the electromagnetic wave conversion into electric energy by the capture unit 20. To further explain, the capture unit 20 mainly captures the radiation power of the electromagnetic wave, and then converts the radiation power of the electromagnetic wave into a DC power signal for use as electric energy through the AC-DC converter of the rectifier conversion unit 22 inside the capture unit 20, so as to realize the operation of energy storage and energy supply. Among them, the energy storage part can be completed by at least one capacitor, and the energy supply part provides at least one voltage source. Another radiation element is the transmission unit 33, which provides corresponding transmission frequency bands according to different signals and transmits the tire pressure status signal to the on-board unit 40.

In addition, please refer to the fourth figure, the rechargeable tire pressure detection method of the present invention includes steps (S1~S7).

S1: An antenna transceiver step to receive electromagnetic waves in the atmosphere. In this embodiment, electromagnetic waves generally refer to those generated by base stations, mobile phones and communication equipment.

S2: An electromagnetic wave transmission and reception step, receiving the electromagnetic wave in step S1.

S3: An energy conversion step, receiving the electromagnetic waves in step S2 and converting them into electrical energy.

S4: An energy storage step, receiving the electrical energy in step S3 for storage.

S5: A charging step, receiving the electric energy in step S4 to charge the tire pressure detection system 1.

S6: A tire pressure sensing step, sensing a vehicle tire pressure and generating a tire pressure sensing signal.

S7: A tire pressure transmission step, receiving the tire pressure sensing signal in step S6 and transmitting the tire pressure sensing signal to the vehicle-mounted unit 40 via the antenna transceiver unit 10.

From the above description, it can be known that the rechargeable tire pressure detector system and method of the present invention mainly realizes a concept of Internet of Things, charges the tire pressure detector through the energy management unit 23, and provides the driver with the current power level of the tire pressure detector and the tire status through the vehicle-mounted unit 40, such as a mobile phone, laptop and other communication equipment. It mainly includes two technical features, one of which is: The antenna transceiver unit 10 performs the antenna transceiver step S1 and the electromagnetic wave transceiver step S2, obtains the electromagnetic wave in the atmosphere, and performs the energy conversion step S3, the energy storage step S4 and the charging step S5 through the rectifier conversion unit 22 and the energy management unit 23 of the acquisition unit 20. When the radiation power of the electromagnetic wave is rectified into a DC power signal as electrical energy, the tire pressure detection system 1 can be charged.

Another technical feature is that the tire pressure monitoring sensing unit 31, the signal calculation unit 32 and the transmission unit 33 of the main control unit 30 execute the tire pressure sensing step S6 and the tire pressure transmission step S7, and transmit the tire pressure status of the tire to the vehicle-mounted unit 40 through the antenna transceiver unit 10.

In summary, the rechargeable tire pressure monitoring system and method of the present invention can indeed achieve energy conversion of electromagnetic waves and provide electrical energy to the tire pressure monitoring system 1 for charging at any time, improving the defect that the conventional tire pressure monitoring system cannot be charged when the power is exhausted. Therefore, the present invention not only has environmental protection awareness, but also greatly improves driving safety.

1: Tire pressure monitoring system

10: Antenna transceiver unit

20: Capture unit

30: Main control unit

Claims (10)

A rechargeable tire pressure detection system includes: an antenna transceiver unit, a capture unit, and a main control unit connected to each other by telecommunication; the antenna transceiver unit receives an electromagnetic wave and transmits it to the capture unit; the capture unit converts the electromagnetic wave into electric energy and charges a tire pressure detection system; the main control unit has a tire pressure monitoring sensing unit, a signal calculation unit, and a transmission unit connected to each other by telecommunication, senses a tire pressure sensing signal through the tire pressure monitoring sensing unit and generates a tire pressure status signal through the signal calculation unit, and then transmits the tire pressure status signal to the antenna transceiver unit through the transmission unit. As described in patent application scope 1, the rechargeable tire pressure detection system, wherein the main control unit is electronically connected to a vehicle-mounted unit. As described in patent application scope 1, the rechargeable tire pressure detection system, wherein the electromagnetic wave can be generated by a base station, a mobile phone or a communication device. As described in patent application scope 1, the charging tire pressure detection system, wherein the acquisition unit has an impedance matching unit, a rectifier conversion unit and an energy management unit that are interconnected by telecommunications. As described in patent application scope 4, the rechargeable tire pressure detection system, wherein the rectifier conversion unit is an AC-DC rectifier. A rechargeable tire pressure detection method includes: an antenna transceiver step, receiving an electromagnetic wave; an electromagnetic wave transceiver step, receiving the electromagnetic wave of the antenna transceiver step; an energy conversion step, receiving the electromagnetic wave of the electromagnetic wave transceiver step and converting it into electric energy; an energy storage step, receiving the electric energy of the energy conversion step and Storing; a charging step, receiving the electric energy of the energy storage step and charging a tire pressure detection system; a tire pressure sensing step, sensing a tire pressure sensing signal; a tire pressure transmission step, transmitting the tire pressure sensing signal of the tire pressure sensing step and transmitting the tire pressure sensing signal to a vehicle-mounted unit through an antenna transceiver unit. As described in patent application scope 6, the rechargeable tire pressure detection method, wherein the energy conversion step, the energy storage step and the charging step are performed by a capture unit. As described in patent application scope 6, the rechargeable tire pressure detection method, wherein the tire pressure sensing step and the tire pressure transmission step are performed by a tire pressure monitoring sensing unit, a signal calculation unit and a transmission unit of a main control unit. As described in patent application scope 7, the charging tire pressure detection method, wherein the acquisition unit has an impedance matching unit, a rectifier conversion unit and an energy management unit that are interconnected by telecommunications. As described in patent application scope 8, the rechargeable tire pressure detection method, wherein the rectifier conversion unit is an AC-DC rectifier.

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