KR101308705B1 - Tire status monitoring system and antenna module identification method thereof - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tire condition monitoring system, comprising: a plurality of transmitters installed on each of a plurality of tires, and provided with various sensors to sense a state of a corresponding tire and wirelessly transmit sensed tire state information, and wireless transmissions from the transmitters. At least one slave antenna module for receiving and storing the tire state information, a master antenna module for collecting and collecting the tire state information from the transmitters and the slave antenna module, and the master antenna And an ECU for receiving the tire state information through a module and performing operation control and display control according to the tire state information.

Description

TIRE STATUS MONITORING SYSTEM AND ANTENNA MODULE IDENTIFICATION METHOD THEREOF

The present invention relates to a tire condition monitoring system for an automobile (including a commercial vehicle), and more particularly, to a tire condition monitoring system using a plurality of antenna modules and a method for identifying an antenna module mounted on a vehicle.

In general, a tire condition monitoring system of a vehicle installs various sensors on a tire to monitor tire status (for example, air pressure, temperature, driving speed, etc.) in real time, and outputs wireless signals (RF (Radio Frequency)) which are outputs of various sensors. The antenna module for receiving a signal) is installed, and the antenna module (transceiver) informs the output of various sensors to the ECU (Electronic Control Unit) by wireless communication (eg, CAN communication).

Although only one antenna module is installed in a vehicle, a plurality of antenna modules are installed in order to efficiently receive tire state information. In particular, commercial vehicles have four or more tires, so a large number of antenna modules need to be installed and used. When a plurality of antenna modules are installed, each antenna module is mounted at an optimal position according to the chassis structure of the vehicle.

However, as the number of antenna modules installed increases as compared to the case of installing one antenna module of a vehicle, the load acting on the ECU becomes more severe. That is, the ECU that needs to communicate with each antenna module has a problem that performance decreases as the number of antenna modules increases and the processing speed decreases.

The technical problem to be achieved by the present invention is to provide a tire monitoring system having an antenna module structure that can effectively receive and process the state of each tire while reducing the load on the ECU even if a plurality of antenna modules are installed.

Another object of the present invention is to provide an antenna module identification method of a tire condition monitoring system that automatically recognizes and registers even when an antenna module installed in a vehicle is added or removed.

As a solution for achieving the above object, the present invention provides a tire monitoring system. The tire monitoring system includes a plurality of transmitters installed on each of a plurality of tires, each of which includes various sensors to sense the state of the tire and wirelessly transmit the sensed tire state information, and the tire state information wirelessly transmitted by the transmitters. At least one slave antenna module for receiving and storing the master antenna module for collecting and collecting the tire state information from the transmitters and the slave antenna module, and the tire state through the master antenna module A tire condition monitoring system including an ECU for receiving information and performing operation control and display control according to the tire state information is provided.

The tire state information includes unique identification information for identifying the tire or the transmitter, the master antenna module stores unique identification information corresponding to the tire or the transmitter, and receives the received tire state information. The tire state information including the stored unique identification information is extracted and provided to the ECU.

The slave antenna module provides all of the received tire state information to the master antenna module, or if the tire or the transmitter stores unique identification information corresponding to the transmitter, the tire including the stored unique identification information among the received tire state information. Extracting state information and providing the extracted state information to the master antenna module.

When the master antenna module is turned on from the power off state, the master antenna module registers the unique number of the slave antenna module received from the slave antenna module to use the identification information for identifying the slave antenna module, the unique number is Characterized in that the signal is transmitted and received between the master antenna module and the slave antenna module.

Alternatively, when the master antenna module is turned on from the power off state, the master antenna module generates and registers a master identification code corresponding to a unique number of the slave antenna module received from the slave antenna module, and registers the master identification code to the slave antenna. Used as identification information for identifying a module, the master identification code is characterized in that it is included in the signal transmitted and received between the master antenna module and the slave antenna module.

The master antenna module transmits a message requesting the unique number to the slave antenna module when the master antenna module does not receive the unique number of the slave antenna module from the slave antenna module during the setting waiting time when the power is turned on from the power off state. It is characterized by.

As a solving means for achieving the above object, according to the present invention provides an antenna module identification method of the tire condition monitoring system. In the antenna module identification method of the tire condition monitoring system, a slave antenna module installed in a vehicle determines a transmission cycle using its own unique number as power is applied, and the slave antenna module according to the transmission cycle Transmitting a unique number; monitoring, by a master antenna module installed in the vehicle, whether a unique number of the slave antenna module is received during a set waiting time according to power-on; and the master antenna module is configured to monitor the slave during the waiting time. Registering identification information corresponding to the unique number when the unique number of the antenna module is received; transmitting, by the master antenna module, a first signal including the unique number and the identification information, the slave antenna module Is an award containing your unique number Receiving a first signal, confirming the identification information, and the slave antenna module includes a step of transmitting a response signal including the identification information corresponding to the first signal to the master antenna module.

According to the present invention, the master antenna module further comprises the step of transmitting a message for requesting a unique number after the waiting time when the unique number of the slave antenna module is not received during the waiting time.

According to the present invention, if the first signal is not received from the master antenna module after transmitting the unique number in the slave antenna module, resetting the transmission period and transmitting the unique number in a reset transmission period. Include.

The identification information may be the master identification code which is the unique number or new identification information generated by the master antenna module. The transmission period is determined by a random number generated using the unique number.

According to an embodiment of the present invention, by configuring the master antenna module and at least one slave antenna module and the master antenna module to communicate with the ECU, it is possible to reduce the load on the ECU.

In addition, according to an embodiment of the present invention, when the slave antenna module is added or removed, the master antenna module can automatically detect the addition or removal of the slave antenna module.

In addition, according to an embodiment of the present invention, by determining the transmission period through the random number using the unique number of each slave antenna module so that collisions between the transmission data of each slave antenna module does not occur.

1 is a block diagram of a tire condition monitoring system according to a first embodiment of the present invention.
2 is a block diagram of a tire condition monitoring system according to a second embodiment of the present invention.
3 is an internal configuration diagram of a master antenna module according to an embodiment of the present invention.
4 is an internal configuration diagram of a slave antenna module according to an embodiment of the present invention.
5 is a data flow diagram showing the overall operation of the tire condition monitoring system according to an embodiment of the present invention.
6 is a flowchart illustrating the operation of the master antenna module in the antenna module identification method of the tire condition monitoring system according to the first embodiment of the present invention.
7 is a flowchart illustrating the operation of the master antenna module in the antenna module identification method of the tire condition monitoring system according to the second embodiment of the present invention.
8 is a flowchart illustrating the operation of the slave antenna module in the antenna module identification method of the tire condition monitoring system according to the second embodiment of the present invention.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Now, a tire condition monitoring system and an antenna module identification method thereof according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a tire condition monitoring system according to a first embodiment of the present invention, in which one master antenna module 200 and one slave antenna module 310 are installed in a commercial vehicle having eight tires. For example.

As shown in FIG. 1, the tire condition monitoring system according to an exemplary embodiment of the present invention includes a plurality of transmitters 100, a master antenna module 200, and first and second slave antenna modules 310 and 320 installed in each tire. ), And the ECU 400.

Each transmitter 100 is installed on a corresponding tire, and includes a sensor such as a pressure sensor and a temperature sensor to sense the state of the tire, and includes an RF module to receive information (that is, tire state information) sensed by each sensor. Transmit by signal. In this case, the RF signal includes unique identification information, and the unique identification information makes it possible to distinguish each transmitter or tire. That is, each transmitter 100 transmits an RF signal including different unique identification information.

The master antenna module 200 collects tire state information of each tire, and provides the collected tire state information to the ECU 400 at every set cycle time through controller area network (CAN) communication.

The tire state information collection of each tire is achieved by receiving an RF signal from each transmitter 100 and receiving tire state information from the first slave antenna module 310. The master antenna module 200 stores tire state information obtained from the RF signal and tire state information received from the first slave antenna module 310 in a buffer or internal memory. The master antenna module 200 requests and obtains tire state information from the first slave antenna module 310 every set cycle time, or automatically receives the tire state information from the first slave antenna module 310 every set cycle time.

The first slave antenna module 310 receives an RF signal from each transmitter 100 and provides tire state information obtained through the RF signal to the master antenna module 200 through LIN (Local Interconnect Network) communication.

At this time, providing the tire state information to the master antenna module 200 is made at the request of the master antenna module 200. Of course, the first slave antenna module 310 may provide the tire state information to the master antenna module 200 immediately after receiving the RF signal from the transmitter 100 or the tire state information to the master antenna module 200 at set cycle times. Can be provided.

The first slave antenna module 310 buffers the tire state information received from the transmitter 100 when providing the tire state information to the master antenna module 200 at the request of the master antenna module 200 or at a predetermined cycle time. Or store it in memory.

The tire state information provided by the master antenna module 200 in the first slave antenna module 310 includes unique identification information for identifying what tire (or what transmitter) tire state information is.

The master antenna module 200 and the first slave antenna module 310 update the latest information if the tire state information of the same tire is already stored when storing the tire state information stored in the buffer or the memory.

Meanwhile, the master antenna module 200 registers unique identification information corresponding to each tire (or each transmitter), and stores only the RF signal including the registered unique identification information among the received RF signals in a buffer or a memory. The master antenna module 200 stores only the tire state information including the unique identification information registered among the tire state information received from the first slave antenna module 200 in a buffer or a memory.

While the master antenna module 200 is essentially registered with the unique identification information for identifying each tire (or each transmitter), the first slave antenna module 310 is free to register the unique identification information. That is, the first slave antenna module 310 may or may not be registered unique identification information corresponding to each tire (or transmitter).

If the unique identification information is registered, the first slave antenna module 310 checks whether the registered unique identification information is included with respect to the RF signal received from each transmitter 100 and the RF signal including the unique identification information. Only the tire state information of the master antenna module 200 is provided.

On the other hand, if the unique identification information is not registered, the first slave antenna module 310 provides the tire antenna state information of all the received RF signals to the master antenna module 200 without filtering. In this case, the master antenna module 200 performs a filtering operation of extracting only tire state information including registered unique identification information from the tire state information received from the first slave antenna module 310.

The ECU 300 requests and obtains information from the receiver 200, or periodically receives tire state information from the receiver 200, and performs operation control and information display according to the tire state information.

Hereinafter, a tire condition monitoring system according to a second embodiment of the present invention will be described with reference to FIG. 2.

2 is a block diagram of a tire condition monitoring system according to a second embodiment of the present invention, in which one master antenna module 200 and two slave antenna modules 310 and 320 are installed in a commercial vehicle having eight tires. This is an example.

In the second embodiment of the present invention, the same reference numerals are given to the same configuration (eg, ECU, transmitter, master antenna module, first slave antenna module) as in the first embodiment of the present invention.

In addition, the second slave antenna module 320 is the same as the first slave antenna module 310 except that only the position of the vehicle is mounted, and performs the same operation as the first slave antenna module 310.

As a result, according to an embodiment of the present invention, only one master antenna module 200 may be used, and one or more slave antenna modules may be used, which is all tire state information in the master antenna module 200. By performing the communication with the ECU 400, all the tire state information is provided to the ECU 400 according to the feature.

On the other hand, when a plurality of slave antenna modules are installed, the master antenna module 200 should be able to identify each slave antenna module to determine which signal is received from a slave antenna module, and accurately determine the signal to be received by a specific slave antenna module. You should be able to receive it.

To this end, a plurality of slave antenna modules must be distinguished from each other, and slave identification information corresponding to the discrimination must be registered in the master antenna module 200.

There are two main methods for registering slave identification information in the master antenna module 200.

The first is to register slave identification information corresponding to each slave antenna module in the master antenna module 200 when the vehicle is mass-produced or when the slave antenna module is installed in the vehicle.

Second, in the state of mass production of a vehicle or the installation of slave antenna modules, the slave antenna module does not register slave identification information, and the master antenna module performs a mutual recognition operation through communication between the master antenna module and the plurality of slave antenna modules after the vehicle is started. Register slave identification information.

The second method corresponds to a tire condition monitoring system and an antenna module identification method thereof according to an embodiment of the present invention. Therefore, the second method will be described below.

Hereinafter, the master antenna module and the slave antenna module will be described with reference to FIGS. 3 and 4.

3 is an internal configuration diagram of a master antenna module according to an embodiment of the present invention. As shown in FIG. 3, the master antenna module 200 includes an RF circuit unit 210, a LIN communication unit 220, a microcontroller 230, and a CAN communication unit 240.

The RF circuit unit 210 includes an antenna to receive an RF signal from the tire state transmitter 100, converts the impedance signal, amplifies, and converts the digital signal into a microcontroller 230.

The LIN communication unit 220 is in charge of LIN communication with the first and second slave antenna modules 310 and 320.

The microcontroller 230 controls the overall operation of the master antenna module 200. In particular, the microcontroller 230 registers the unique identification information corresponding to the tire, and receives and processes the RF signal including the identification information. In addition, the microcontroller 230 communicates with the ECU 400 at each set cycle time to provide the latest state information of each tire.

In addition, the microcontroller 230 communicates LIN communication with the first slave antenna module 310 or the second slave antenna module 320 at a set cycle time, thereby providing status information from the first and second slave antenna modules 310 and 320. Acquire it. Of course, the cycle time for acquiring tire state information from the slave antenna modules 310 and 320 may not be set in the microcontroller 230. In this case, at least every cycle time in each slave antenna module 310 and 320 may be set. The tire state information is provided to the microcontroller 230 through LIN communication.

The CAN communication unit 240 is responsible for CAN communication with the ECU 400 and performs CAN communication with an external display device when necessary.

4 is an internal configuration diagram of a slave antenna module according to an embodiment of the present invention. As shown in FIG. 4, the slave antenna modules 310 and 320 include an RF circuit unit 10, a microcontroller 20, and a LIN communication unit 30.

The RF circuit unit 10 includes an antenna to receive an RF signal from each transmitter 100, convert an impedance match, an amplification, and a digital signal to the microcontroller 20.

The microcontroller 20 controls overall operations of the slave antenna modules 310 and 320. In particular, when the microcontroller 20 registers unique identification information corresponding to the tire, only the RF signal including the identification information is provided to the master antenna module 200. The RF signal is provided to the master antenna module 200.

If the transmission cycle time for the tire state information is set, the microcontroller 20 provides the master antenna module 200 with the latest state information of each tire at each set cycle time. However, if the transmission cycle time for the tire state information is not set, the microcontroller 20 provides tire state information in response to a request for information from the master antenna module 200.

Here, when the transmission cycle time for the tire state information is set, the cycle time set in the first slave antenna module 310 and the second slave antenna module 320 may be the same or different.

The LIN communication unit 30 is in charge of LIN communication with the master antenna module 200.

3 and 4 omit the illustration of the buffer or the memory for storing the antenna state information. Those skilled in the art can easily configure the buffer or the memory in the antenna modules 310 and 320. Detailed description will be omitted.

Now, the operation of the tire condition monitoring system according to an embodiment of the present invention will be described in more detail with reference to FIGS. 5 to 8.

5 is a data flow diagram showing the overall operation of the tire condition monitoring system according to an embodiment of the present invention, and shows data generated after power is applied to the vehicle by ACC (accessory) ON or IGN (ignition) ON. It is a flow chart.

As shown in FIG. 5, when the start key is ACC ON or IGN ON, a mutual recognition operation is performed between the first and second slave antenna modules 310 and 320 and the master antenna module 200. 2 Slave identification information (ie, slave identification code) for each of the slave antenna modules 310 and 320 is registered in the master antenna module 200 (S101 and S102).

Each transmitter 100 transmits tire state information obtained from each sensor as an RF signal, and the first and second slave antenna modules 310 and 320 and the master antenna module 200 receive the RF signal (S103).

The first and second slave antenna modules 310 and 320 do not have unique identification information for identifying the transmitter 100 (or the tire). Therefore, the first and second slave antenna modules 310 and 320 grasp each tire state information from all received RF signals and store them in a buffer, and if the tire state information received from the same receiver is already stored, the latest information. Are updated and stored (S104, S105).

On the other hand, since the master antenna module 200 registers unique identification information for identifying each transmitter 100 (or tire), only the RF signal including the registered unique identification information is extracted from the received RF signals. Then the tire state information is stored in the buffer (S406).

Of course, the master antenna module 200 may be configured to extract only the RF signal transmitted from the transmitter of the tire in charge of the RF signal and to store it in the buffer.

The master antenna module 200 counts time after registering slave identification information and requests tire state information from the first and second slave antenna modules 310 and 320 at each request cycle time set according to the time count (S107 and S108). ).

At this time, the master antenna module 200 includes slave identification information corresponding to the corresponding slave antenna module and transmits the signal for requesting tire state information.

When the first and second slave antenna modules 310 and 320 receive a signal for requesting tire state information from the master antenna module 200, the first and second slave antenna modules 310 and 320 provide the tire state information stored in the buffer to the master antenna module 200 in response thereto. (S110).

When the master antenna module 200 receives the tire state information from the first and second slave antenna modules 310 and 320, the master antenna module 200 extracts only the tire state information including unique identification information registered to itself from the received tire state information. If the tire state information of the same unique identification information is already stored, it is updated and stored with the latest information (S112).

The master antenna module 200 provides each tire state information stored in the buffer to the ECU 400 when the set providing cycle time is reached (S113), and the ECU 400 operates or controls the tire state information corresponding to the received tire state information. To perform (S114).

Herein, the steps S101 and S102 will be described in more detail with reference to FIGS. 6 to 8.

6 is a flowchart illustrating the operation of the master antenna module in the antenna module identification method of the tire condition monitoring system according to the first embodiment of the present invention. When power is applied as shown in FIG. 6 (S201), the master antenna module 200 performs a standby operation for a set waiting time (for example, 5 seconds) (S202).

The master antenna module 200 monitors whether the slave unique number S_ID assigned to the corresponding slave antenna modules 310 and 320 is received from the first and second slave antenna modules 310 and 320 during the waiting time ( S203).

If the master antenna module 200 does not receive the slave unique number (S_ID) from the slave antenna module (310, 320) for 5 seconds (S204), the slave antenna number (S_ID) to the slave antenna module (310, 320). Send a unique number request message requesting the transmission of.

The master antenna module 200 receives the slave unique number (S_ID) during the waiting time (S203), or receives the slave unique number (S_ID) after transmitting the unique number request signal (S207), the received slave unique number (S_ID) Register to distinguish (identify) the first and second slave antenna modules (310, 320) (S206).

Afterwards, the master antenna module 200 transmits a tire state information request signal including a slave unique number (S_ID) registered at every request cycle time, and the slave antenna module checks the slave unique number (S_ID) from the received request signal. In response to the request signal containing the unique number of (S208).

After all, the unique number is used as identification information for identifying the slave antenna module.

Accordingly, the master antenna module 200 and the slave antenna modules 310 and 320 include a slave unique number every time a signal is transmitted, and the master antenna module 200 transmits the slave antenna modules 310 and 320 through the slave unique number. And the slave antenna module (310, 320) identifies the signal received by it.

7 is a flowchart illustrating the operation of the master antenna module in the antenna module identification method of the tire condition monitoring system according to the second embodiment of the present invention. When power is applied as shown in FIG. 7 (S301), the master antenna module 200 performs a standby operation for a set waiting time (for example, 5 seconds) (S302).

The master antenna module 200 monitors whether the slave unique number S_ID assigned to the corresponding slave antenna modules 310 and 320 is received from the first and second slave antenna modules 310 and 320 during the waiting time ( S303).

When the master antenna module 200 does not receive the slave unique number (S_ID) from the slave antenna modules (310, 320) for 5 seconds (S304), the slave antenna number (S_ID) to the slave antenna module (310, 320). The unique number request signal for requesting transmission of the signal is transmitted (S305).

Of course, if the slave unique number (S_ID) is received from the first slave antenna module 310 but did not receive the slave unique number (S_ID) from the second slave antenna module 320, the master antenna module 200 is the second The unique number request signal is transmitted to the slave antenna module 320.

The master antenna module 200 receives the slave unique number (S_ID) during the waiting time (S303), or receives the slave unique number (S_ID) after transmitting the unique number request signal (S306), the received slave unique number (S_ID) The master recognition code (M_recognition ID) is added to the slave antenna modules 310 and 320 to be transmitted (S307).

At this time, the master identification code (M_recognition ID) transmitted to each slave antenna module (310, 302) has a different code value.

When each slave antenna module (310, 320) receives its slave unique number (S_ID) and master identification code (M_recognition ID) from the master antenna module 200, the master antenna module 200 responds to the response signal thereto. In this case, the response signal includes the slave unique number (S_ID) and the master identification code (M_recognition ID).

Therefore, the master antenna module 200 determines whether a response signal including the slave unique number S_ID and the master identification code M_recognition ID is received from the slave antenna modules 310 and 320 after S307 (S307). S308).

When the master antenna module 200 does not receive a response signal during the setting time, the master antenna module 200 transmits a signal including the slave unique number (S_ID) and the master identification code (M_recognition ID) to the slave antenna module again. When received, the slave unique number (S_ID) and master identification code (M_recognition ID) is mapped to each other and registered (S309).

Thereafter, the master antenna module 200 transmits a tire state information request signal including a master identification code (M_recognition ID) registered at each request cycle time, and the slave antenna module recognizes a master identification code (M_recognition) from the received request signal. ID) and responds to the request signal including the master identification code (M_recognition ID) assigned to it (S310).

After all, the master identification code (M_recognition ID) is used as identification information for identifying the slave antenna module in place of the unique number.

Accordingly, the master antenna module 200 and the slave antenna modules 310 and 320 include a master identification code (M_recognition ID) and transmit the signal whenever the signal is transmitted, and the master antenna module 200 recognizes the master identification code (M_recognition). The slave antenna modules 310 and 320 are identified through the ID, and the slave antenna modules 310 and 320 identify the signal transmitted to itself through the master identification code M_recognition ID.

8 is a flowchart showing the operation of the slave antenna module in the antenna module identification method of the tire condition monitoring system according to the second embodiment of the present invention, the antenna module identification method of the tire condition monitoring system according to a second embodiment of the present invention. This corresponds to the operation of the master antenna module.

And the operation of the slave antenna module corresponding to the operation of the master antenna module in the antenna module identification method of the tire condition monitoring system according to the second embodiment of the present invention can be easily carried out through the following description by those skilled in the art and will not be described. do.

As shown in FIG. 8, when power is applied (S401), the slave antenna modules 310 and 320 generate a random number using their own slave unique number (S_ID), and determine a transmission period based on the random number (S402). In operation S403, the slave unique number S_ID is transmitted to the master antenna module 200 according to the determined transmission period.

The slave antenna modules 310 and 320 monitor whether the slave unique number S_ID and the master identification code M_recognition ID are received from the master antenna module 200 (S404).

If the slave antenna modules 310 and 320 do not receive the slave unique number (S_ID) and the master identification code (M_recognition ID), the slave unique number (S_ID) according to the transmission period by the set repetition number (for example, three times). Transmits the slave unique number (S_ID) even when receiving a message for requesting the slave unique number (S_ID) from the master antenna module (310, 320) (S407). (S405, S406).

The slave antenna module transmitting the slave unique number S_ID is a slave antenna module that has not received the slave unique number S_ID and the master identification code M_recognition ID from the master antenna module 200. That is, the slave antenna module receiving the slave unique number S_ID and the master identification code M_recognition ID from the master antenna module 200 does not respond to the message for requesting the slave unique number.

If the slave antenna module 310, 320 repeatedly transmits the slave unique number (S_ID) three times and does not receive the unique number (S_ID) and the master identification code (M_recognition ID) from the master antenna module 200. In operation S408, the slave antenna modules 310 and 320 generate a new random number using the slave unique number S_ID, reset the transmission period using the generated random number, and transmit the slave unique number S_ID.

The slave antenna modules 310 and 320 store the master identification code (M_recognition ID) when receiving the slave unique number (S_ID) and the master identification code (M_recognition ID) from the master antenna module 200 (S404). After the registration, the slave unique number S_ID and the master identification code M_recognition ID are transmitted to the master antenna module 200 as a response signal (S409).

Subsequently, the slave antenna modules 310 and 320 check whether the master recognition code (M_recognition ID) registered to the slave antenna module (310) is included in the signal transmitted from the master antenna module 200, and the master recognition code (M_recognition). Responds to a signal containing ID).

Meanwhile, after performing the S409 process, the slave antenna modules 310 and 320 monitor whether a signal for requesting tire state information is received from the master antenna module 200 during the set time, and the master antenna module 200 within the set time. When receiving a signal for requesting the tire status information from the master antenna module 200 generates a response signal including the tire status information and master identification code (M_recognition ID) stored in the buffer for the generated response signal It transmits to (S411).

The embodiments of the present invention described above are not only implemented by the apparatus and method but may be implemented through a program for realizing the function corresponding to the configuration of the embodiment of the present invention or a recording medium on which the program is recorded, The embodiments can be easily implemented by those skilled in the art from the description of the embodiments described above.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It belongs to the scope of right.

100: transmitter 200: master antenna module
310, 320: slave antenna module 400: ECU

Claims (14)

delete delete delete delete delete delete delete delete delete The slave antenna module installed in the vehicle determines the transmission period by using its own unique number as the power is applied,
Transmitting, by the slave antenna module, its own unique number according to the transmission period;
Monitoring, by the master antenna module installed in the vehicle, whether a unique number of the slave antenna module is received during a set waiting time as power is applied;
Registering, by the master antenna module, identification information corresponding to the unique number when the unique number of the slave antenna module is received during the waiting time;
Transmitting, by the master antenna module, a first signal including the unique number and the identification information;
Receiving, by the slave antenna module, the first signal including its own number and confirming the identification information;
The slave antenna module transmitting a response signal including the identification information to the master antenna module in response to the first signal;
The master antenna module further comprises transmitting a message requesting a unique number after the waiting time when the unique number of the slave antenna module is not received during the waiting time. . delete The method of claim 10,
The slave antenna module further comprises the step of resetting the transmission period and transmitting the unique number in the reset transmission period if the first signal is not received from the master antenna module after transmitting the unique number. Antenna module identification method of the tire condition monitoring system. The method of claim 12,
The identification information is the antenna module identification method of the tire condition monitoring system, characterized in that the unique identification or a master identification code which is new identification information generated by the master antenna module. The method of claim 12,
The transmission period is an antenna module identification method of a tire condition monitoring system, characterized in that determined by the random number generated using the unique number.

Images