TWI607896B - Tire pressure monitoring system and using method thereof - Google Patents

Description

Tire pressure monitoring system and method of use thereof

The present invention relates to a tire pressure monitoring system, and more particularly to a tire pressure monitoring system having at least one tire related data transmitted in accordance with a first communication protocol and a second communication protocol.

At present, in order to improve the safety of vehicles and vehicles, it is convenient to install a Tire Pressure Monitoring System (TPMS) and related devices in the vehicle, and to pass the tire pressure detectors such as pointer or electronic display before driving or During the driving, the tires are measured for instantaneous tire pressure, temperature and other data to ensure the safety of personnel driving.

At present, the working frequency band of the tire pressure monitoring system is mostly in the two frequency bands of 433MHz and 315MHz, and the data transmission mode adopts Amplitude Shift Keying (hereinafter referred to as ASK) and frequency shift key transmission (Frequency Shift). Keying, hereinafter referred to as FSK). However, ASK technology is simple, but its anti-noise ability is poor, and FSK is likely to make electromagnetic waves discontinuous in the moment of frequency change, resulting in poor spectral characteristics, and its technology is more complicated.

In summary, no matter which of the above data transmission methods are used, Manchester Encoding is used, that is, the pre-transmission channel must occupy a data packet for a period of time, and the encoding method will be transmitted. Indirectly, each transmission of data packets is too long due to the long transmission time, which is likely to cause collision and loss of data signals; if, for the tire pressure, temperature and other data carried out for each tire in motion Measurements, if not due to the above-listed factors, cannot be returned to the host in the first time and the driver is informed immediately, at that time, unpredictable serious consequences and accidents will occur; in view of this, In fact, I want to improve.

In view of the above-mentioned deficiencies of the prior art, the object of the present invention is to provide a tire pressure monitoring system for transmitting data in a tire pressure monitor to a first communication protocol and a second communication protocol. In the host side or a smart electronic device, the data transmission efficiency of the tire pressure monitoring system is improved, and the effect and purpose of the dual mode transmission are indirectly achieved.

In order to achieve the above object, the present invention provides a tire pressure monitoring system including a mainframe, which is disposed in a vehicle having at least one tire, the mainframe having a first microprocessor and a first transmission a module and a display unit, wherein the first transmission module and the display unit are electrically connected to the first microprocessor; and at least one tire pressure monitor is disposed on the at least one tire of the vehicle The at least one tire pressure monitor is electrically connected to the host by a transmission chip; the data related to the at least one tire obtained by measuring the at least one tire by the at least one tire pressure monitor Transmitting wirelessly by the transmission chip and receiving by the first transmission module of the host, and converting the data related to the at least one tire by the first microprocessor, Displaying, by the display unit, data related to the at least one tire; wherein the transmitting chip of the at least one tire pressure monitor has a transmission according to a first communication protocol and a second communication protocol A small capacity of the tire related data, a first transfer module and the host system to receive data that has the wafer transfer of wirelessly transmitted according to the first protocol.

Preferably, the host is provided with a second transmission module, the second transmission module is electrically connected to the first microprocessor, and the second transmission module of the host is received according to the second communication protocol. The transmission wafer transmits data wirelessly.

Preferably, the relay unit further includes a third transmission module and a fourth transmission module, wherein the third transmission module receives and receives according to the first communication protocol. Forwarding data transmitted by the transmission chip of the at least one tire pressure monitor in a wireless manner; the fourth transmission module is configured to receive and forward the transmission by the at least one tire pressure monitor according to the second communication protocol The data transmitted by the wafer in a wireless manner.

Preferably, the relay unit is provided with a second microprocessor, and the second microprocessor is electrically connected to the third transmission module and the fourth transmission module respectively; and the relay unit The second microprocessor is configured to wirelessly electrically communicate with the first transmission module of the first microprocessor of the host by the third transmission module; and the first of the relay units The second microprocessor is electrically connected to the second transmission module of the first microprocessor of the host by the fourth transmission module.

The structure, the actuation characteristics and the effects of the tire pressure monitoring system proposed in the present invention will be described in detail in the following embodiments, and will not be described again.

10‧‧‧ tire pressure monitoring system

20‧‧‧Host

21‧‧‧First microprocessor

23‧‧‧First transmission module

25‧‧‧Second transmission module

27‧‧‧Display unit

30‧‧‧ Vehicles

31‧‧‧ tires

40‧‧‧ tire pressure monitor

41‧‧‧Transfer wafer

50‧‧‧ tire pressure monitoring system

60‧‧‧Relay unit

61‧‧‧second microprocessor

63‧‧‧ Third transmission module

65‧‧‧4th transmission module

70‧‧‧Smart electronic devices

80‧‧‧How to use

S1, S2, S3, S4‧‧‧ steps

Figure 1 is a schematic diagram of the application of the present invention.

Figure 2 is a schematic diagram of the system architecture of the first preferred embodiment of the present invention.

Figure 3 is a schematic diagram of the system architecture of the second preferred embodiment of the present invention.

Figure 4 is a schematic diagram of the system architecture of the third preferred embodiment of the present invention.

Figure 5 is a schematic diagram of the process of the present invention.

In the following, the structural characteristics of the present invention and their intended effects will be described in detail by way of the examples and the accompanying drawings. First, in the various embodiments and figures illustrated below, The same reference numerals are used to indicate the same or similar elements, components, objects, structures, systems or devices.

Please refer to Figures 1 and 2 together as a first preferred embodiment of a tire pressure monitoring system 10 of the present invention, and the tire pressure monitoring system 10 includes: a host 20, which is attached to a vehicle. In the case of 30, the vehicle 30 has at least one tire 31; and in the first preferred embodiment, the vehicle 30 has four such tires 31.

The host 20 has a first microprocessor 21, a first transmission module 23, and a display unit 27. The first microprocessor 21 is electrically connected to the first transmission module 23, respectively. And the display unit 27, and the first transmission module 23 of the host 20 has the capability of transmitting or receiving data according to a first communication protocol; and in the first preferred embodiment, the first communication The agreement is a Bluetooth communication protocol including, but not limited to, Bluetooth h2.x+EDR, Bluetooth h3.0+HS, Bluetooth 4.x, Bluetooth Low Energy, and the like.

At least one tire pressure monitor 40 is disposed on the at least one tire 31 of the vehicle 30, and the at least one tire pressure monitor 40 is wirelessly electrically connected to the host 20 by a transfer wafer 41, and For the tire 31 before or during driving, the tire pressure, temperature and the like are measured. The transmission wafer 41 of the at least one tire pressure monitor 40 has a first communication protocol and a second communication. The ability to transmit the at least one tire 31 related data, and the first communication protocol is a Bluetooth communication protocol, including but not limited to Bluetooth h2.x+EDR, Bluetooth h3.0+HS, Bluetooth 4.x, Bluetooth Low Energy, etc., and the second communication protocol is a 2.4Ghz communication protocol; preferably, the second communication protocol is a program that can obtain pre-transmitted or received programs, communication codes, and the like. It is transmitted in the 2.4Ghz communication protocol.

The operation characteristic of the first preferred embodiment and the effect thereof are: the data related to the at least one tire 31 obtained by measuring the at least one tire 31 through the at least one tire pressure monitor 40, According to the first communication protocol and by the transmission chip 41 to the wireless side Emitted outwardly, and then received by the first transmission module 23 of the host 20, and then converted by the first microprocessor 21 with data related to the at least one tire 31, The display unit 27 displays the data associated with the at least one tire 31; or, when the data associated with the at least one tire 31 is wirelessly emitted by the transfer wafer 41 in accordance with the second communication protocol, It can also be received by a wireless transmission module (not included) in a smart electronic device (including but not limited to a mobile phone, a tablet computer, a notebook computer, etc.), and then through the smart electronic device. A micro processing unit (not shown) converts the data associated with the at least one tire 31 and then displays the data associated with the at least one tire 31 through a display module (not shown). In the first preferred embodiment, the vehicle 30 has four such tires 31, and each of the tires 31 is provided with the tire pressure monitor 40, and each of the transport wafers 41 is separately provided. They are electrically connected to the host 20 in a wireless manner.

The significant difference between the first preferred embodiment and the prior art is that:

First, if the tire pressure, temperature, and the like obtained by the tire pressure monitor 40 installed in each of the tires 31 are measured, the data is further radiated externally by the transfer wafer 41, and borrowed. Receiving by the first transmission module 23 of the host 20, and then converting the data related to each of the tires 31 by the first microprocessor 21, and then transmitting the data via the display unit 27 The data related to the tire 31 is displayed; therefore, it is not necessary to first establish a transmission channel after driving the transmission unit of the tire pressure monitor 40 via another operating system, as in the prior art. That is, the transmission chip 41 of the tire pressure monitor 40 is wirelessly transmitted outward, and a function of transmitting Bluetooth communication is established with the first transmission module 23 of the host 20 according to the first communication protocol.

Second, the data rate transmission rate of the conventional amplitude shift keying (ASK) is about 4200 bps, and the data rate transmission rate of the conventional frequency shift keying (FSK) is about 9600 bps; therefore, if a set is derived from When the tire pressure monitor 40 of any of the tires 31 is subjected to an instantaneous measurement, and the data packet such as the tire pressure and the temperature is 13 bytes, the data length can be found. According to the data length of the 13-byte packet by the amplitude shift keying (ASK) transmission method, it takes about (13 bytes) × (8 bits) × (1/4200) ≒ 0.0248 (sec) time, and if borrowed When calculating by the frequency shift keying (FSK) transmission method, it takes about (13 bytes) × (8 bits) × (1/9600) ≒ 0.0108 (sec) time; preferably, if the first communication is used When calculating the transmission method with Bluetooth low energy 4.0 function, it only takes about (13bytes) × (8bits) × (1/1000000) ≒ 0.000104 (sec), which is relative to the amplitude. The displacement key transmission (ASK) system has a transmission time of nearly 238 times, and the transmission time is nearly 104 times different with respect to the frequency shift keying (FSK) system; thus, the transmission efficiency of the data packet is greatly improved.

The above is to explain the actuation characteristics and the efficacy of the first preferred embodiment, and thereafter, the actuation characteristics and effects of a second preferred embodiment of the present invention will be described.

Please refer to FIG. 3 again, which is a second preferred embodiment of a tire pressure monitoring system 10 of the present invention, and the tire pressure monitoring system 10 is mainly the same as the foregoing embodiment, and the difference is the same. The host 20 is further provided with a second transmission module 25, and the first microprocessor 21 is electrically connected to the second transmission module 25, and the second transmission module 25 of the host 20 is Having the ability to transmit or receive data according to the second communication protocol; preferably, the second communication protocol is to obtain data obtained by pre-transmitting or receiving a program, a communication code, etc. The transmission is carried out in the 2.4Ghz communication protocol.

The operation characteristic of the second preferred embodiment and the effect thereof are: the data related to the at least one tire 31 obtained by measuring the at least one tire 31 through the at least one tire pressure monitor 40, According to the first communication protocol and wirelessly transmitting by the transmission chip 41, and received by the first transmission module 23 of the host 20, or according to the second communication protocol and by the The transmission chip 41 is wirelessly transmitted outwardly and received by the second transmission module 25 of the host 20, and then the data conversion processing associated with the at least one tire 31 is performed by the first microprocessor 21. After that, the display unit 27 will be associated with the at least one tire 31. The closed data is displayed.

Referring to FIG. 4 again, it is a third preferred embodiment of a tire pressure monitoring system 50 of the present invention, and the tire pressure monitoring system 50 is mainly the same as the foregoing embodiment, and the difference is the same. The tire pressure monitoring system 50 further includes a relay unit 60. The relay unit 60 is provided with a second microprocessor 61, a third transmission module 63, and a fourth transmission module 65. The second microprocessor 61 is electrically connected to the third transmission module 63 and the fourth transmission module 65. The third transmission module 63 of the relay unit 60 is based on the first communication. The protocol is configured to receive and forward data transmitted by the transmission chip 41 of the at least one tire pressure monitor 40 in a wireless manner, and the fourth transmission module 65 of the relay unit 60 is configured to receive and receive according to the second communication protocol. Data transmitted by the transmission chip 41 of the at least one tire pressure monitor 40 in a wireless manner is forwarded.

The second microprocessor 61 of the relay unit 60 is electrically connected to the first transmission module 23 of the first microprocessor 21 of the host 20 in a wireless manner by the third transmission module 63. The wireless transmission module (not shown) can be electrically connected to a smart electronic device 70 (including but not limited to a mobile phone, a tablet computer, a notebook computer, etc.).

The second microprocessor 61 of the relay unit 60 is electrically connected to the second transmission module 25 of the first microprocessor 21 of the host 20 in a wireless manner by the fourth transmission module 65. The wireless transmission module (not shown) in the smart electronic device 70 (including but not limited to a mobile phone, a tablet computer, a notebook computer, etc.) can also be electrically connected to the wireless device.

The operation characteristics of the third preferred embodiment and the effect thereof are: if the invention is further applied to a trailer, a truck, a truck or a mass transit vehicle, etc., where the tires are long and the vehicle body is long The tire pressure, temperature, and the like obtained by the tire pressure monitor 40 of each of the tires 31 are measured by the instantaneous measurement, and further transmitted wirelessly by the transfer wafer 41, and then, to ensure The data transmission process is not attenuated by unpredictable factors, so the third transmission module 63 of the relay unit 60 is used according to the first communication protocol. Receiving and forwarding for the Bluetooth protocol, the data transmitted by the transmission chip 41 of each of the tire pressure monitors 40 is wirelessly transmitted to the first transmission module 23 of the host 20 or the smart electronic device 70. In the wireless transmission module; or, the fourth transmission module 65 of the relay unit 60 may receive and forward according to the second communication protocol, which is derived from each of the tire pressure monitors 40. The data transmitted by the transmission chip 41 in a wireless manner is transmitted to the second transmission module 25 of the host 20 or the wireless transmission module of the smart electronic device 70; and, subsequently, by the first of the host 20 The microprocessor 21 converts the data related to each of the tires 31, and displays the data related to each of the tires 31 via the display unit 27 of the host 20, or the smart electronic device 70 The microprocessor converts the data related to each of the tires 31, and displays the data related to each of the tires 31 via the display unit of the smart electronic device 70.

The above is to explain the actuation characteristics and the efficacy of the third preferred embodiment. Hereinafter, please refer to FIG. 5, and a method 80 for using the tire pressure monitoring system of the present invention will be further described, including the following steps:

In step S1, a host 20 is provided and disposed in a vehicle 30. The host 20 has a first microprocessor 21, a first transmission module 23, a second transmission module 25, and a display unit 27. The first microprocessor 21 is electrically connected to the first transmission module 23, the second transmission module 25, and the display unit 27; and the first transmission module 23 of the host 20 has The ability to transmit or receive data according to a first communication protocol for a Bluetooth communication protocol, and the second transmission module 25 of the host 20 has a communication protocol with 2.4Ghz according to a second communication protocol or The ability to receive data.

In step S2, at least one tire pressure monitor 40 is provided and is disposed in at least one tire 31 of the vehicle 30, and the at least one tire pressure monitor 40 is electrically connected to the tire by a transfer wafer 41. The main body 20 is configured to measure the relevant tire pressure, temperature, and the like for the tire 31 before or during driving, and measure the at least one tire 31 by the at least one tire pressure monitor 40 and the at least one The data related to the tire 31 is further wirelessly transmitted by the transfer wafer 41. Launch outward.

Step S3. At this time, data that is wirelessly transmitted from the transmission chip 41 can be received by the first transmission module 23 of the host 20 according to the first communication protocol for the Bluetooth communication protocol. Or, the second transmission module 25 of the host 20 receives the communication protocol with 2.4Ghz.

Step S4, at this time, the data from the first and second transmission modules 23 and 25 of the host 20 is converted and processed by the first microprocessor 21, and the at least A tire 31 related data is displayed.

In the step S3, the relay unit 60 further includes a second microprocessor 61, a third transmission module 63, and a fourth transmission module 65, and the second The microprocessor 61 is electrically connected to the third transmission module 63 and the fourth transmission module 65; and the third transmission module 63 of the relay unit 60 is received according to the first communication protocol. And forwarding, the data transmitted wirelessly via the transmission chip 41 of the at least one tire pressure monitor 40 to the first transmission module 23 of the first microprocessor 21 of the host 20, and the relay unit 60 The fourth transmission module 65 is configured to receive and forward according to the second communication protocol, and wirelessly transmits the data transmitted by the transmission chip 41 of the at least one tire pressure monitor 40 to the first micro processing of the host 20 The second transmission module 25 of the device 21.

In the following, it should be noted that those skilled in the art to which the present invention pertains will be able to clearly understand that the detailed description and the embodiments of the present invention are only intended to illustrate the structure, method, process, etc. of the present invention. The singularity of the invention, and the substitution or variation of other equivalent elements, components, articles, structures, devices, methods or processes, are also intended to be within the scope of the patent application of the present invention. Covered.

20‧‧‧Host

21‧‧‧First microprocessor

23‧‧‧First transmission module

27‧‧‧Display unit

40‧‧‧ tire pressure monitor

41‧‧‧Transfer wafer

Claims (10)

A tire pressure monitoring system includes: a mainframe, which is disposed in a vehicle, the vehicle has at least one tire, the mainframe has a first microprocessor, a first transmission module, and a display unit. And the first transmission module and the display unit are electrically connected to the first microprocessor; and at least one tire pressure monitor is disposed on the at least one tire of the vehicle, and the at least one tire pressure monitoring The device is electrically connected to the host wirelessly by a transfer wafer; and the data related to the at least one tire obtained by measuring the at least one tire through the at least one tire pressure monitor is performed by the transfer wafer Transmitting wirelessly and receiving by the first transmission module of the host, and converting the data related to the at least one tire by the first microprocessor, and then At least one tire related data is displayed; wherein the transmission chip of the at least one tire pressure monitor has the capability of transmitting the at least one tire related data according to a first communication protocol and a second communication protocol, A first transmission line to the host module receives the data having the transfer wafer of wirelessly transmitted according to the first protocol. The tire pressure monitoring system of claim 1, wherein the host is provided with a second transmission module, and the second transmission module is electrically connected to the first microprocessor, and the host The second transmission module receives the data transmitted by the transmission chip in a wireless manner according to the second communication protocol. The tire pressure monitoring system according to claim 2, further comprising a relay unit, wherein the relay unit is provided with a third transmission module and a fourth transmission module, wherein the third transmission mode The group is configured to receive and forward data transmitted by the transmission chip of the at least one tire pressure monitor in a wireless manner according to the first communication protocol; the fourth transmission module is based on the second A protocol for receiving and forwarding data transmitted by the transmission chip of the at least one tire pressure monitor in a wireless manner. The tire pressure monitoring system of claim 3, wherein the relay unit is provided with a second microprocessor, and the second microprocessor is electrically connected to the third transmission module. And the fourth transmission module; and the second microprocessor of the relay unit is electrically connected to the first microprocessor of the host by the third transmission module in a wireless manner a transmission module; and the second microprocessor of the relay unit is electrically connected to the second transmission mode of the first microprocessor of the host by the fourth transmission module in a wireless manner group. The tire pressure monitoring system according to any one of claims 1 to 4, wherein the first communication protocol is a Bluetooth communication protocol. The tire pressure monitoring system according to claim 1, wherein the second communication protocol is a 2.4Ghz communication protocol. The tire pressure monitoring system according to claim 1, wherein the at least one tire pressure monitor and the at least one tire system are plural. A method for using a tire pressure monitoring system includes the following steps: Step S1, providing a host and being disposed in a vehicle, wherein the host has a first microprocessor, a first transmission module, and a second a transmission module and a display unit, wherein the first microprocessor is electrically connected to the first transmission module, the second transmission module, and the display unit, and the first transmission module of the host is Having the ability to transmit or receive data according to a first communication protocol, and the second transmission module of the host has the capability of transmitting or receiving data according to a second communication protocol; and step S2, providing at least one The tire pressure monitor is disposed in at least one tire of the vehicle, and the at least one tire pressure monitor is electrically connected to the main body by a transmission wafer in a wireless manner And measuring, by the at least one tire pressure monitor, the data related to the at least one tire obtained by the at least one tire, and transmitting the data wirelessly by the transmitting wafer; and step S3, originating from the The data transmitted by the transmitting chip in a wireless manner can be received by the first transmission module of the host and according to the first communication protocol, and can be obtained by the second transmission module of the host and according to the second Received by the communication protocol; and step S4, the data originating from the first and second transmission modules of the host is converted by the first microprocessor, and related to the at least one tire via the display unit The data is displayed. According to the method of using the tire pressure monitoring system of claim 8, the step S3 further includes a relay unit, wherein the relay unit is provided with a second microprocessor and a third transmission module. And a fourth transmission module, wherein the second microprocessor is electrically connected to the third transmission module and the fourth transmission module, and the third transmission module of the relay unit is based on The first communication protocol for receiving and forwarding data transmitted wirelessly via the transmission chip of the at least one tire pressure monitor to the first transmission module of the first microprocessor of the host; and the relay unit The fourth transmission module is configured to receive and forward the data wirelessly transmitted through the transmission chip of the at least one tire pressure monitor to the second microprocessor of the first microprocessor of the host according to the second communication protocol Transmission module. The method for using a tire pressure monitoring system according to claim 9, wherein the first communication protocol is a Bluetooth communication protocol, and the second communication protocol is a 2.4Ghz communication protocol.