TWI522602B - Writeable number of tire pressure detection device and its setting method - Google Patents

Description

Tire pressure detecting device capable of writing number and setting method thereof

The present invention relates to a tire pressure detector, and more particularly to a tire pressure detecting device that can be numbered.

In order to maintain the driving, you can instantly grasp the condition of the car tires, avoid the danger of driving due to sudden puncture or insufficient tire pressure. At present, most cars in the United States are equipped with a tire pressure detection system, which reads the tire pressure detection system. The tire pressure detectors respectively installed in the four tires of the automobile, each tire pressure detector continuously reads the air pressure or other parameters in the corresponding tires for a certain period of time (for example, the temperature inside the tire and the running speed of the tire. After the .., etc., the reading result is transmitted to the tire pressure detecting system. If any of the results detected by the tire pressure detector is abnormal, the tire pressure detecting system generates an alarm signal to notify the driver of the vehicle.

In order to avoid the cost of maintenance and the user's troubles caused by frequent replacement of the tire pressure detector, the current tire pressure detector can have an average service life of more than 5 years, but when the tire pressure detector is damaged or needs to be replaced, due to the original car The tire pressure detectors used in the factory and their setting methods are not all the same, so that the user must return to the original factory for replacement with a tire pressure detector, which causes inconvenience to the user.

As shown in the fourth figure, it is a conventional tire pressure detecting system (70), which comprises a tire pressure detecting host (72) and a plurality of tire pressure detecting devices (74), the tire pressure detecting host ( 72) installed in a car body (80), each tire pressure detector (74) is installed in a plurality of tires (82) of the car body (80), in order to identify each The position of each tire pressure detector (74), each tire pressure detector (74) contains an independent identification number, and the tire pressure detection host (72) must first learn each tire pressure detection The unique identification number of the detector (74) can generate signal connection with each tire pressure detector (74) and identify the sensing results of each tire pressure detector (74).

The tire pressure detecting host (72) uses an identification number setting device (90) to set the identification number of each tire pressure detector (74). The identification number setting device (90) uses a high frequency receiver (92) to read a new tire pressure detector (74) after the identification number thereof, and the identification number setting device (90) reads the number again. The identification number is written to the tire pressure detecting host (72) via a controller (94) and a download connector (96). However, since the identification number setting means (90) of different automobile manufacturers are not compatible with each other, the single identification number setting means (90) can only read and set for the specific tire pressure detector (74), allowing the user If the tire pressure detector (74) is to be replaced, it must be returned to the repair shop equipped with the identification number setting device (90), which is inconvenient for the user.

In order to solve the excessive cumbersome setting between the current tire pressure detecting host and the tire pressure detector, and to use a special setting device, the setting can be completed, and the user must find a repair factory equipped with a special setting device. The replacement of the tire pressure detector leads to the problem of inconvenient use. The present invention proposes a sensor that can be modified or written to replace the old tire pressure detector to make the tire pressure detecting host of the automobile It is not necessary to reset the new number, so that the user does not have to go back to a specific repair shop to replace the tire pressure detector, which improves the convenience of operation, and allows most repair shops to eliminate the need to prepare different manufacturers-specific setting devices. Save on maintenance costs.

In conjunction with the foregoing technical problems and the object of the invention, the present invention provides a writable tire pressure detecting device comprising a setter and a writable number of tire condition detectors, wherein: the setter has: An input interface for the user to receive or set a number; a controller is connected to the input interface to read the number received or set by the input interface, and then form the number to form a number setting signal; The transmission module can receive the control of the controller and output the number setting signal; the writable tire state detector has: a micro processing control module, including a readable and writable memory unit; The module is connected to the microprocessor control module to receive control of the microprocessor control module to sense a tire pressure value; a transmission module is coupled to the microprocessor control module to receive the microprocessor module Controlling, the sensing result of the sensing module is transmitted by an RF signal; a receiving interface is connected to the microprocessor control module to receive control of the microprocessor control module, and receiving the number A given signal, the microprocessor based control module further set number of the received signals a number stored in the memory unit; a power module, which provides power writable tire status detector number of operations required.

The invention further provides an input unit for writing the number of the tire pressure detector The method includes the steps of: reading a legacy number of an old tire pressure detector with a setter; and wiredly connecting the setter to a writable tire state detector; transmitting the tire from the setter A tire status detector that is numbered to a writable number is used as the number of the tire number detector for the writable number.

Therefore, when the old tire pressure detector needs to be replaced, any manufacturer with the setter can copy the number of the old tire pressure detector to a new writable tire state detector. The detector directly replaces the old tire pressure detector, no need to use other devices, first read the number of the newly installed tire pressure detector and then reset the tire pressure detection system in the car, which can be greatly improved. The convenience of replacement and the maintenance cost of the general car manufacturer.

Please refer to the first figure and the second figure, which are preferred embodiments of the writeable numbered tire pressure detecting device and the input method thereof, wherein the writeable number of tire pressure detecting device comprises a A numbered tire condition detector (10) and a setter (20) can be written.

The writable number of tire condition detectors (10) are fixedly mounted in a car tire during use. Generally, the writable number of tire condition detectors (10) are fixedly coupled to the car tires. The one-piece tire state detector (10) includes a microprocessor control module (12) and a sensor module (14) connected to the microprocessor control module (12), respectively. A transmission module (16), a power module (18), and a receiving interface (19, 19A).

The microprocessor control module (12) internally includes a memory unit (122), The memory unit (122) is a readable and writable memory unit, and can record an 8-bit or higher number corresponding to an external tire pressure detector or the writable number of tire state detectors (10) ). When the writable number of tire condition detectors (10) of the preferred embodiment is manufactured, it may be assigned a unique and unique number recorded in the memory unit (122), or At the time of shipment, no tire status detector (10) numbered in the writable number is recorded.

The sensing module (14) can include a pneumatic sensor, more than one acceleration sensor, a temperature sensor, and a magnetic field sensor, and the sensing module (14) receives the microprocessor control module ( 12) controlling, when the writable tire state detector (10) is installed in the tire of the automobile, sensing tire pressure in the tire of the automobile, linear acceleration of the tire of the automobile, direction change, temperature, and The external environment magnetic field, etc., the sensing module (14) simultaneously transmits the sensing result to the microprocessor control module (12). Wherein, when the sensing module (14) includes two acceleration sensors with different sensing directions, the steering can be detected through the sensing acceleration change when the automobile tire is turned.

The transmission module (16) receives the control of the microprocessor control module (12), wirelessly transmits the sensing result of the sensing module (14) to a detection system installed in the vehicle or the setter (20) . The transmitting module (16) of the preferred embodiment is an RF transmitter that transmits the sensing result to the detecting system or the setting device (20) by using an RF signal (for example, 315 MHz, 433 MHz, etc.). .

The power module (18) provides power required for operation of other functional modules within the writable number of tire condition sensors (10), which may be a battery.

The receiving interface (19, 19A) is a connector that accepts an external signal line connection or is a low frequency wireless receiver, such as 125 kHz...etc. As shown in the first figure, the receiving interface (19) is a low frequency wireless receiver, and can receive the control of the microprocessor control module (12) to receive an external low frequency wireless signal, and the frequency of the low frequency wireless signal is relatively lower. The RF signal of the transmission module (16). Since the penetration rate of the low frequency signal is poor, the signal receiving distance is limited. Therefore, if the receiving interface (19) is to read and receive the external wireless signal, the receiving interface (19) must be relatively close to the external wireless signal source. Therefore, in use, the writable number of tire condition detectors (10) can use the receiving interface (19) to access different external wireless signal sources and separately read different external wireless signal sources.

As shown in the second figure, the receiving interface (19A) is an interface that can be connected to an external signal circuit such as a connector, a Pin pad, and the like.

The setter (20) includes a controller (21) and a wireless receiving module (23) electrically connected to the controller (21), a setting transmitting module (25), and an input interface (27). And a power supply module (29).

The wireless receiving module (23) is capable of receiving a wireless signal transmitted by an external tire pressure detector and transmitting the transmitting module (16) of the writable number of tire condition detectors (10) The wireless signal transmits the received signal to the controller (21).

The setting transmission module (25) can control the controller (21) to transmit the low frequency wireless signal to the receiving interface (19).

The input interface (27) can include a human input interface (272) and a number reader (274). The human input interface (272) can be an input keyboard, a Dip switch, etc., which is triggered or set by the person, input a number to the controller (21). The number reader (274) can be a code reader that can optically determine whether to form or attach to an external tire pressure detector or other writable number of tire condition detectors (10) a bar code corresponding to the number of the external tire pressure detector or other writable number of tire condition detectors (10), and the number reader (274) will read after reading the bar code The result is output to the controller (21).

The power supply module (29) can be an electrical converter or a battery to supply the power required for operation of the setter (20).

Please refer to the third figure, which is a setting method of the writable tire pressure detector device according to the preferred embodiment, the steps of which include: reading the old number (61) by the old detector, and numbering the old number Write another detector (62) and determine if the number is correct (63).

The old detector has read the old number (61) step for the user to read the number of the tire pressure detector installed in a car tire with the setter (20). Alternatively, the number of the known number of tire pressure detectors can be directly read into the setter (20) through the input interface (27). For example, the surface of the tire pressure detector to be replaced may directly be numbered. Or a barcode with a record number attached, the user can read the number into the setter (20) through the human input interface (272) or the number reader (274).

The step of writing the old number into another detector (62) is for the setter (20) to transmit the read old number to the receiving interface through its setting transmission module (25) ( 19) After the microprocessor control module (12) receives the signal at the receiving interface (19), the old number is recorded in the memory unit (122). If the memory unit (122) of the writable tire condition detector (10) originally has a built-in number, this step overwrites the old number and deletes the previously existing number, so that the The corresponding number of the tire status detector (10) to which the number is written is the old number.

Whether the judgment number is correct (63), the writable number of the tire state detector (10) is completed by the transmission module (16) after the completion of the old numbering setting. Numbered to the setter (20), the controller (21) receives the transmitted number through the wireless receiving module (23), and determines whether the transmitted number is the same as the old number, and if the result is negative, then Step (61) is repeated, and the process of writing the old number is successfully completed.

(10)‧‧‧Writable numbered tire condition detectors

(12)‧‧‧Microprocessing Control Module

(122)‧‧‧ memory unit

(14)‧‧‧Sense Module

(16)‧‧‧Transmission module

(18)‧‧‧Power Module

(19,19A)‧‧‧ receiving interface

(20)‧‧‧Setter

(21) ‧ ‧ controller

(23)‧‧‧Wireless receiving module

(25)‧‧‧Set transfer module

(27)‧‧‧Input interface

(272)‧‧‧Human input interface

(274)‧‧‧Number reader

(29)‧‧‧Power supply module

The first figure is a block diagram of a system in accordance with a preferred embodiment of the present invention.

The second figure is a block diagram of another embodiment of a tire-recordable tire state detector of the present invention.

The third figure is a flow chart of a preferred embodiment of the present invention.

The fourth picture shows the system block diagram of one of the existing tire pressure detection systems.

(10)‧‧‧Writable numbered tire condition detectors

(12)‧‧‧Microprocessing Control Module

(122)‧‧‧ memory unit

(14)‧‧‧Sense Module

(16)‧‧‧Transmission module

(18)‧‧‧Power Module

(19) ‧‧‧ receiving interface

(20)‧‧‧Setter

(21) ‧ ‧ controller

(23)‧‧‧Wireless receiving module

(25)‧‧‧Set transfer module

(27)‧‧‧Input interface

(272)‧‧‧Human input interface

(274)‧‧‧Number reader

(29)‧‧‧Power supply module

Claims (10)

A tire-detectable tire pressure detecting device includes a writable tire state detector and a setter, wherein: the setter has: an input interface for a user to operate to receive or set a a controller connected to the input interface to read the number received or set by the input interface, and then forming the number into a number setting signal; a setting transmission module can accept the control of the controller, Outputting the number setting signal; the writable tire state detector has: a microprocessor control module including a readable and writable memory unit; and a sensing module connected to the microprocessor control module to accept The control of the microprocessor control module senses a tire pressure value; a transmission module is connected to the microprocessor control module to receive the control of the microprocessor module, and the sensing result of the sensor module is RF signal transmission; a receiving interface is connected to the microprocessor control module to receive control of the microprocessor control module, and receive the number setting signal, and the microprocessor control module is further based on the received number The signal number is stored in the memory unit, and the number is written to the tire number detector of the writable number; a power module is provided for the operation of the tire state detector of the writable number Electricity. The tire pressure detecting device of the writable number described in claim 1, wherein the input interface comprises a human input interface or a code reader. The tire pressure detecting device of the writable number described in claim 2, wherein the human input interface is an input keyboard or a dip switch. The tire pressure detecting device of the writable number described in claim 1, 2 or 3, wherein: the setting transmitting module wirelessly transmits the number setting signal; and the receiving interface is a wireless receiving interface The number setting signal for wireless transmission of the setting transmission module is accepted. The tire pressure detecting device of the writable number described in claim 1, 2 or 3, wherein the setting transmitting module is wired to the receiving interface to transmit the number setting signal to the receiving interface. The tire pressure detecting device of the writable number described in claim 1, 2 or 3, wherein the sensing module is a pneumatic sensor, more than one acceleration sensor, and a temperature sensor. Or a magnetic field sensor. The tire pressure detecting device of the writable number described in claim 4, wherein the sensing module is a pneumatic sensor, more than one acceleration sensor, a temperature sensor or a magnetic field sense Detector. The tire pressure detecting device of the writable number described in claim 1, 2 or 3, wherein the sensing module comprises a pneumatic sensor, more than one acceleration sensor and a temperature sensor . The tire pressure detecting device of the writable number described in claim 4, wherein the sensing module comprises a pneumatic sensor and more than one plus Speed sensor and a temperature sensor. An input method for writing a number of a tire pressure detector, the method comprising: reading an old number of an old tire pressure detector with a setter; and wiredly connecting the setter to a writable number a receiving interface of the tire condition detector; transmitting the receiving interface of the old numbered to writable tire condition detector from the setter to write the old number to the writable number Tire status detector.