KR20160036308A - Vehicle and control method thereof, communication status diagnosis apparatus of vehicle - Google Patents

Abstract

Disclosed are a vehicle and a control method thereof, and an apparatus for diagnosing a communications state of the vehicle. According to an embodiment, the present invention allows the communications state of a signal to be accurately diagnosed through an antenna and a head unit, and accurately diagnoses the communications state of a signal through the antenna and the head unit and enables diagnosis results of the communications state to be displayed through an external measuring device or a display inside a vehicle. To this end, the vehicle according to the present invention comprises: a first antenna; a second antenna; at least one communications unit performing transmission and reception of a signal through the first antenna and the second antenna; and a control unit determining the communications state of the communications unit with the first antenna and the second antenna from the results of the transmission and reception of a signal using the communications unit, the first antenna, and the second antenna.

Description

TECHNICAL FIELD [0001] The present invention relates to a vehicle, a control method thereof, and a communication state diagnostic apparatus for a vehicle.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle, and more particularly,

The automobile includes a head unit that performs an antenna for communication and a reception of radio or a reception of a telematics signal. The antenna may be installed in the roof of the vehicle or in the form of a hot wire on the rear window. The head unit can be installed in the center fascia in front of the driver's seat. The antenna and the head unit are communicably connected through a feeding cable.

In the conventional connection between the antenna and the head unit, there is a problem in the transmission / reception performance of the signal, it is difficult to know exactly where the problem is caused. In order to know the exact cause, it is necessary to disassemble the already installed antenna and head unit.

According to an aspect of the present invention, an object of the present invention is to accurately diagnose a communication state of a signal through an antenna and a head unit.

According to another aspect of the present invention, there is provided an apparatus for accurately diagnosing a communication state of a signal through an antenna and a head unit and displaying a result of the communication state diagnosis through an external measuring apparatus or a display inside the vehicle.

According to another aspect of the present invention, there is provided a vehicle comprising: at least one communication unit for performing communication through at least one of a first antenna and a second antenna; And a control unit for determining a communication state between the communication unit and the first antenna and the second antenna based on a result of communication between the first antenna and the second antenna.

Also in the automobile described above, at least one communication unit includes a single tuner.

Also in the automobile described above, a single tuner is provided in the head unit.

Also in the automobile described above, the first antenna is for transmission and reception; The second antenna is for transmission and reception.

In addition, in the automobile described above, the control unit controls the tuner to transmit the signal through the first antenna; Receive a signal transmitted via a first antenna through a second antenna; The communication state of the tuner, the first antenna, and the second antenna is determined by comparing the transmission signal of the first antenna with the reception signal of the second antenna.

Further, in the automobile described above, the control unit controls the tuner to transmit the signal through the second antenna; Receive a signal transmitted via a second antenna via a first antenna; The communication state of the tuner, the first antenna, and the second antenna is determined by comparing the transmission signal of the second antenna with the reception signal of the first antenna.

Also in the automobile described above, the first antenna is for transmission and reception; The second antenna is for transmission.

Further, in the automobile described above, the control unit controls the tuner to transmit the signal through the second antenna; Receive a signal transmitted via a second antenna via a first antenna; The communication state of the tuner, the first antenna, and the second antenna is determined by comparing the transmission signal of the second antenna with the reception signal of the first antenna.

Also in the automobile described above, the first antenna is for transmission and reception; The second antenna is for reception.

In addition, in the automobile described above, the control unit controls the tuner to transmit the signal through the first antenna; Receive a signal transmitted via a first antenna through a second antenna; The communication state of the tuner, the first antenna, and the second antenna is determined by comparing the transmission signal of the first antenna with the reception signal of the second antenna.

Also in the automobile described above, the at least one communication unit includes a plurality of tuners; A plurality of tuners are composed of a first tuner and a second tuner.

Further, in the automobile described above, a plurality of tuners are provided in the head unit.

Also in the automobile described above, the first antenna is for transmission and reception; The second antenna is for transmission and reception.

Also in the automobile described above, the control unit controls the first tuner to transmit the signal through the first antenna; Control a second tuner to receive a signal transmitted via a first antenna via a second antenna; The communication state of the first tuner, the first antenna, the second antenna, and the second tuner is determined by comparing the transmission signal of the first antenna with the reception signal of the second antenna.

In addition, in the automobile described above, the control unit controls the second tuner to transmit the signal through the second antenna; Control a first tuner to receive a signal transmitted via a second antenna via a first antenna; The communication state of the first tuner, the first antenna, the second antenna, and the second tuner is determined by comparing the transmission signal of the second antenna with the reception signal of the first antenna.

Also in the automobile described above, the first antenna is for transmission and reception; The second antenna is for transmission.

In addition, in the automobile described above, the control unit controls the second tuner to transmit the signal through the second antenna; Control a first tuner to receive a signal transmitted via a second antenna via a first antenna; The communication state of the first tuner, the first antenna, the second antenna, and the second tuner is determined by comparing the transmission signal of the second antenna with the reception signal of the first antenna.

Also in the automobile described above, the first antenna is for transmission and reception; The second antenna is for reception.

Also in the automobile described above, the control unit controls the first tuner to transmit the signal through the first antenna; Control a second tuner to receive a signal transmitted via a first antenna via a second antenna; The communication state of the first tuner, the first antenna, the second antenna, and the second tuner is determined by comparing the transmission signal of the first antenna with the reception signal of the second antenna.

Further, in the automobile described above, either the first antenna or the second antenna is installed outside the vehicle; And the other one of the first antenna and the second antenna is installed inside the automobile.

Further, in the automobile described above, either the first antenna or the second antenna is installed in the roof of the vehicle; And the other one of the first antenna and the second antenna is installed on the crash pad of the vehicle.

Also in the automobile described above, the first antenna and the second antenna are for at least one of LTE communication, CDMA communication, and HSDPA communication.

An apparatus for diagnosing communication status of a vehicle according to the present invention comprises: a first antenna; A second antenna; At least one communication unit performing communication through at least one of the first antenna and the second antenna; A controller for determining a communication state between the communication unit and the first antenna and the second antenna based on a result of communication between the first antenna and the second antenna and outputting a communication state diagnosis result; And a display unit for displaying a communication status diagnosis result.

Further, in the above-described vehicle communication state diagnosing apparatus, the display unit is a display provided in a separate measuring apparatus.

Further, in the above-described vehicle communication state diagnosing apparatus, the display unit is a display provided in the vehicle.

According to another aspect of the present invention, there is provided a method of controlling an automobile, the method comprising: performing communication through at least one of a first antenna and a second antenna; And determining a communication state between the communication unit and the first antenna and the second antenna based on a result of communication between the first antenna and the second antenna.

According to an aspect of the present invention, a communication state of a signal through an antenna and a head unit can be accurately diagnosed without disassembling or disassembling the apparatus.

According to another aspect of the present invention, the communication state of the signal through the antenna and the head unit can be accurately diagnosed and the result of the communication state diagnosis can be displayed through the external measuring device or the display inside the vehicle, So that it can be confirmed accurately and conveniently.

1 is a view illustrating a vehicle according to an embodiment of the present invention.
2 is a diagram showing a control system of a first embodiment of diagnosing a communication state of a vehicle according to the present invention.
3 is a diagram illustrating a control method of a vehicle according to a first embodiment of the present invention.
4 is a diagram showing a control system of a second embodiment of diagnosing a communication state of a vehicle according to the present invention.
5 is a view illustrating a control method of a vehicle according to a second embodiment of the present invention.
6 is a diagram showing a control system of a third embodiment of a communication state diagnosis of a vehicle according to the present invention.
7 is a diagram illustrating a control method of a vehicle according to a third embodiment of the present invention.
8 is a diagram showing a control system of a fourth embodiment of diagnosing communication state of a vehicle according to the present invention.
9 is a diagram illustrating a control method of a vehicle according to a fourth embodiment of the present invention.
10 is a diagram showing a control system of a fifth embodiment of diagnosing communication state of a vehicle according to the present invention.
11 is a diagram illustrating a control method of a vehicle according to a fifth embodiment of the present invention.
12 is a diagram showing a control system of a sixth embodiment of diagnosing a communication state of a vehicle according to the present invention.
13 is a diagram illustrating a control method of a vehicle according to a sixth embodiment of the present invention.
14 is a diagram showing a control system of a seventh embodiment of diagnosing a communication state of a vehicle according to the present invention.
15 is a diagram showing a control system of an eighth embodiment of diagnosing a communication state of a vehicle according to the present invention.

1 is a view illustrating a vehicle according to an embodiment of the present invention. 1, an automobile 100 according to an embodiment of the present invention includes a plurality of antennas 102 and 104 and a head unit 106 for communication. The plurality of antennas 102 and 104 may be composed of a first antenna 102 and a second antenna 104.

The first antenna 102 is installed at a fixed first position (e.g., on the roof) of the automobile 100. The shape of the first antenna 102 is not limited, and may be in the form of a shank pin antenna, for example. The first antenna 102 is for both transmission (TX) and reception (RX) of a signal. That is, the first antenna 102 may be used for signal transmission / reception.

The second antenna 104 is installed at a fixed second position (e.g., inside the crash pad) of the automobile 100. The shape of the second antenna 104 is not limited. For example, a conductor and a circuit board for receiving radio waves may be embedded in a housing of a hexahedron. The second antenna 104 performs at least one of transmission (TX) and reception (RX) of a signal. For example, the second antenna 104 may be for both transmission and reception of signals. Alternatively, the second antenna 104 may be for transmission only. Alternatively, the second antenna 104 may be for reception only.

The first antenna 102 and the second antenna 104 form a main antenna-sub antenna (or vice versa). It is possible to improve the communication performance by mutual cooperation of the first antenna 102 and the second antenna 104. For example, in a poor communication environment such as inside a tunnel, the transmission performance or the reception performance is doubled in cooperation with each other, thereby overcoming a poor communication environment. In addition, communication performance can be improved by complementing the first antenna 102 and the second antenna 104. For example, when one of the first antenna 102 and the second antenna 104 does not operate normally, the other one can perform communication.

The first antenna 102 and the second antenna 104 satisfy the LTE communication standard, the CDMA communication standard, or the HSDPA communication standard. Also, the first antenna 102 and the second antenna 104 may satisfy the GPS communication standard. The LTE (Long Term Evolution) communication standard is a high-speed wireless data packet communication standard, which is 12 times faster than HSDPA (High Speed Downlink Packet Access) described later. The LTE communication standard is an advanced technology of the 3G mobile communication (3G), and corresponds to the middle between the 3G mobile communication (3G) and the 4th generation mobile communication (4G). The channel bandwidth of the LTE communication standard is 1.25 MHz to 20 MHz, and the maximum transmission rate of the downlink is 100 Mbps and the maximum transmission rate of the uplink is 50 Mbps based on the 20 MHz bandwidth. The wireless multiple access and multiplexing scheme is based on Orthogonal Frequency Division Multiplexing (OFDM), and the high-speed packet data transmission scheme is based on a multi-input multi-output (MIMO) scheme.

The Code Division Multiple Access (CDMA) communication standard is a digital mobile communication method using a spread spectrum technique. Since a user (terminal) transmits and receives signals while sharing time and frequency, the conventional AMPS (Advanced Mobile Phone System) The capacity is much larger. Diffusion band communication spreads a signal with a bandwidth much wider than the bandwidth of the signal to be transmitted. Since the power density of the signal is low, it is difficult to detect the presence or absence of the signal. In addition, the receiving side needs to accurately know the code used in spreading to generate the original signal in the despreading process of the received signal, which is excellent in security.

The HSDPA (High Speed Downlink Packet Access) communication standard is a 3.5G mobile communication method capable of transmitting / receiving data at a higher speed than the third generation mobile communication technology (W-CDMA or CDMA) through high-speed downlink packet access. The downlink speed is up to 14.4 Mbps.

The head unit 106 may be a car audio or an audio video navigation (AVN). The head unit 106 may also include a telematics unit. The head unit 106 can be mounted on a center pacecage inside the automobile 100.

In the following description, communication in the first antenna 102, the second antenna 104, and the head unit 106 provided in the automobile 100 according to the embodiment of the present invention as shown in Fig. 1 is performed smoothly Various embodiments for confirming whether or not the present invention is performed are as follows.

≪ Embodiment 1 >

2 is a diagram showing a control system of a first embodiment of diagnosing a communication state of a vehicle according to the present invention. 2, the first antenna 102 is for both transmit (TX) and receive (RX) and the second antenna 104 is also for transmit (TX) and receive will be.

1, some features of the head unit 106 have been described. FIG. 2 shows the structure of the head unit 106 in more detail. As shown in FIG. 2, LTE communication, CDMA communication, and HSDPA communication can be performed using the first antenna 102 and the second antenna 104. The head unit 106 may be provided with at least one tuner 202 functioning as a communication unit for transmitting and receiving communication signals for such communication. In particular, a single tuner 202 is provided in the head unit 106 according to the first embodiment of the present invention shown in Fig. The head unit 106 transmits or receives a communication signal using a single tuner 202 and a plurality of antennas (i.e., the first antenna 102 and the second antenna 104).

In addition, the head unit 106 may be provided with a signal processing unit 204. The signal processing unit 204 performs modulation / demodulation and frequency conversion of a signal to be transmitted or received. The head unit 106 may generate data of a signal to be transmitted or output data of the received signal. The signal processing unit 204 can be used for generating such data and outputting the data. The control unit 206 may generate data to be transmitted and output the received data. The data may be acoustic data, image data, or other types of data. The sound data may be output through a speaker provided in the vehicle 100. [ The image data may be output through a display provided in the vehicle 100. The head unit 106 provides a user interface for user's convenience.

The control unit 206 is communicably connected to the head unit 106. The control unit 206 may be an electronic control unit (ECU) involved in the overall operation of the automobile 100. The control unit 206 may be a control device (for example, a microprocessor) provided in the head unit 106 for controlling the head unit 106. [ The control unit 206 is involved in generating data to be transmitted and outputting the received data.

The control unit 206 determines whether or not the first antenna 102 and the second antenna 104 are connected to each other based on the transmission and reception of signals using the first antenna 102, the second antenna 104 and the head unit 106, And performs communication state diagnosis control for determining the communication state of the head unit 106. [ That is, a signal transmitted through one of the first antenna 102 and the second antenna 104 is received through another antenna, and the first antenna 102 and the second antenna 104 are compared with each other, (104) and the head unit (106) is good.

3 is a diagram illustrating a control method of a vehicle according to a first embodiment of the present invention. The control method shown in FIG. 3 is a control method for determining the communication state of the first antenna 102, the second antenna 104, and the head unit 106. In the control method shown in FIG. 3, the first antenna 102 for both transmission and reception, the second antenna 104 for both transmission and reception, and the communication based on the result of the communication based on the single tuner 202 The state is judged.

As shown in Fig. 3, the control unit 206 receives an externally input communication state diagnosis command (302). In response to receipt of the communication status diagnosis command, the control unit 206 first determines the communication state of the unidirectional communication path leading to "head unit 106 - first antenna 102 - second antenna 104 - head unit 106 & And generates transmission data for diagnosis. The transmission data generated by the control unit 206 is transmitted to the signal processing unit 204 of the head unit 106 and converted into a signal of a form that can be transmitted and then transmitted to the air through the tuner 202 and the first antenna 102 (304). The tuner 202 of the head unit 106 receives the signal transmitted through the first antenna 102 through the second antenna 104 (306). The received signal is converted into data form by the signal processing unit 204 and provided to the control unit 206. [ The control unit 206 compares the data of the signal transmitted through the first antenna 102 with the data of the signal received through the second antenna 104 and determines whether the communication state is good or bad based on the comparison 308). That is, when the data of the transmitted signal and the data of the received signal agree with each other, the signal transmitted from the head unit 106 through the first antenna 102 is transmitted through the second antenna 104 and the head unit 106 In this case, the control unit 206 determines that the communication state is good. On the contrary, if the data of the transmitted signal and the data of the received signal do not coincide with each other, a signal transmitted from the head unit 106 through the first antenna 102 is transmitted from the second antenna 104 through the head unit 106 In this case, the control unit 206 determines that the communication state is poor. If it is determined that the communication state is bad (No in 310), the control unit 206 determines whether the communication state is good or not The communication status diagnosis information for guiding that the communication status of the unidirectional communication path is poor is output to the outside (312).

If it is determined that the unidirectional communication state of the communication path leading to "head unit 106 - first antenna 102 - second antenna 104 - head unit 106" is good (Yes in step 310) The communication unit 206 generates transmission data for diagnosis of the communication state of the unidirectional communication path leading to "head unit 106 - second antenna 104 - first antenna 102 - head unit 106 ". The transmission data generated by the control unit 206 is transmitted to the signal processing unit 204 of the head unit 106 and converted into a signal of a form that can be transmitted and then transmitted to the air through the tuner 202 and the second antenna 104 (314). The tuner 202 of the head unit 106 receives the signal transmitted through the second antenna 104 through the first antenna 102 (316). The received signal is converted into data form by the signal processing unit 204 and provided to the control unit 206. [ The control unit 206 compares the data of the signal transmitted through the second antenna 104 with the data of the signal received through the first antenna 102 and determines whether the communication state is good or bad through the comparison 318). That is, when the data of the transmitted signal and the data of the received signal agree with each other, the signal transmitted from the head unit 106 through the second antenna 104 is transmitted through the first antenna 102 and the head unit 106 In this case, the control unit 206 determines that the communication state is good. On the contrary, if the data of the transmitted signal and the data of the received signal do not coincide with each other, a signal transmitted from the head unit 106 through the first antenna 102 is transmitted from the second antenna 104 through the head unit 106 In this case, the control unit 206 determines that the communication state is poor. If it is determined that the communication state is bad (No in step 320), the control unit 206 determines whether the communication state is good or not The communication status diagnosis information for guiding that the communication status of the unidirectional communication path is poor is output to the outside (322). If it is determined that the communication state of the unidirectional communication path leading to "head unit 106 - second antenna 104 - first antenna 102 - head unit 106" is good (Yes in step 320) Since the communication state of the unidirectional communication path leading to "head unit 106 - first antenna 102 - second antenna 104 - head unit 106" in step 310 is determined to be good, "head unit 106 The communication state of the two-way communication path leading to the first antenna 102 - the second antenna 104 - the head unit 106 - the second antenna 104 - the first antenna 102 - the head unit 106 " And outputs the communication status diagnosis information for guiding the communication status of the bidirectional communication path to the outside (324).

3, if the communication state of the unidirectional communication path leading to "head unit 106 - first antenna 102 - second antenna 104 - head unit 106 & Directional communication path of the unidirectional communication path to the antenna 104 - the first antenna 102 - the head unit 106 "is determined to be poor, the communication state of the unidirectional communication path It can be judged to be bad and measures can be taken to solve the problem.

3, if the communication state of the unidirectional communication path leading to "head unit 106 - first antenna 102 - second antenna 104 - head unit 106 & It is preferable to take measures for solving the problem of both the bidirectional communication paths if it is determined that the communication state of the unidirectional communication path leading to the antenna 104 - the first antenna 102 - the head unit 106 '

≪ Embodiment 2 >

4 is a diagram showing a control system of a second embodiment of diagnosing a communication state of a vehicle according to the present invention. In the second embodiment shown in FIG. 4, the first antenna 102 is for both transmit (TX) and receive (RX) and the second antenna 104 is for transmit (TX) only.

1, some features of the head unit 106 have been described. FIG. 4 shows the structure of the head unit 106 in more detail. As shown in FIG. 4, LTE communication, CDMA communication, and HSDPA communication can be performed using the first antenna 102 and the second antenna 104. The head unit 106 may be provided with at least one tuner 202 functioning as a communication unit for transmitting and receiving communication signals for such communication. In particular, a single tuner 202 is provided in the head unit 106 according to the second embodiment of the present invention shown in Fig. The head unit 106 transmits or receives a communication signal using a single tuner 202 and a plurality of antennas (i.e., the first antenna 102 and the second antenna 104).

In addition, the head unit 106 may be provided with a signal processing unit 204. The signal processing unit 204 performs modulation / demodulation and frequency conversion of a signal to be transmitted or received. The head unit 106 may generate data of a signal to be transmitted or output data of the received signal. The signal processing unit 204 can be used for generating such data and outputting the data. The control unit 206 may generate data to be transmitted and output the received data. The data may be acoustic data, image data, or other types of data. The sound data may be output through a speaker provided in the vehicle 100. [ The image data may be output through a display provided in the vehicle 100. The head unit 106 provides a user interface for user's convenience.

The control unit 206 is communicably connected to the head unit 106. The control unit 206 may be an electronic control unit (ECU) involved in the overall operation of the automobile 100. The control unit 206 may be a control device (for example, a microprocessor) provided in the head unit 106 for controlling the head unit 106. [ The control unit 206 is involved in generating data to be transmitted and outputting the received data.

The control unit 206 determines whether or not the first antenna 102 and the second antenna 104 are connected to each other based on the transmission and reception of signals using the first antenna 102, the second antenna 104 and the head unit 106, And performs communication state diagnosis control for determining the communication state of the head unit 106. [ That is, a signal transmitted through the second antenna 104 is received through the first antenna 102, and the first antenna 102, the second antenna 104, It is judged to what extent the communication state of the mobile station 106 is good.

5 is a view illustrating a control method of a vehicle according to a second embodiment of the present invention. The control method shown in Fig. 5 is a control method for determining the communication state of the first antenna 102, the second antenna 104, and the head unit 106. Fig. In the control method shown in Fig. 5, the communication state is determined based on the result of communication based on the first antenna 102 for both transmission and reception, the second antenna 104 for transmission only, and the single tuner 202 .

As shown in Fig. 5, the control unit 206 receives an externally input communication state diagnosis command (502). The control unit 206 responds to the reception of the communication status diagnosis command to diagnose the communication state of the unidirectional communication path leading to "the head unit 106 - the second antenna 104 - the first antenna 102 - the head unit 106 ≪ / RTI > The transmission data generated by the control unit 206 is transmitted to the signal processing unit 204 of the head unit 106 and converted into a signal of a form that can be transmitted and then transmitted to the air through the tuner 202 and the second antenna 104 (514). The tuner 202 of the head unit 106 receives the signal transmitted via the second antenna 104 through the first antenna 102 (516). The received signal is converted into data form by the signal processing unit 204 and provided to the control unit 206. [ The control unit 206 compares the data of the signal transmitted through the second antenna 104 with the data of the signal received through the first antenna 102 and determines whether the communication state is good or bad through the comparison 518). That is, when the data of the transmitted signal and the data of the received signal agree with each other, the signal transmitted from the head unit 106 through the second antenna 104 is transmitted through the first antenna 102 and the head unit 106 In this case, the control unit 206 determines that the communication state is good. On the contrary, if the data of the transmitted signal and the data of the received signal do not coincide with each other, a signal transmitted from the head unit 106 through the first antenna 102 is transmitted from the second antenna 104 through the head unit 106 In this case, the control unit 206 determines that the communication state is poor. If it is determined that the communication state is not good (NO at 520), the control unit 206 determines whether the communication state is good or not The communication status diagnosis information for guiding that the communication status of the unidirectional communication path is poor is output to the outside (522). If it is determined that the communication state of the unidirectional communication path leading to "head unit 106 - second antenna 104 - first antenna 102 - head unit 106" is good (YES in step 520) It is determined that the communication state of the unidirectional communication path leading to the head unit 106 - the second antenna 104 - the first antenna 102 - the head unit 106 is good, and the communication state of the unidirectional communication path is good And outputs communication state diagnostic information for guidance to the outside (524). In this case, it is preferable to take measures for solving the unidirectional communication path leading to "head unit 106 - second antenna 104 - first antenna 102 - head unit 106 ".

≪ Third Embodiment >

6 is a diagram showing a control system of a third embodiment of a communication state diagnosis of a vehicle according to the present invention. In the third embodiment shown in FIG. 6, the first antenna 102 is for both transmit (TX) and receive (RX) and the second antenna 104 is for receive (RX) only.

1, some features of the head unit 106 have been described. FIG. 6 shows the structure of the head unit 106 in more detail. As shown in FIG. 6, LTE communication, CDMA communication, and HSDPA communication can be performed using the first antenna 102 and the second antenna 104. The head unit 106 may be provided with at least one tuner 202 functioning as a communication unit for transmitting and receiving communication signals for such communication. In particular, a single tuner 202 is provided in the head unit 106 according to the third embodiment of the present invention shown in Fig. The head unit 106 transmits or receives a communication signal using a single tuner 202 and a plurality of antennas (i.e., the first antenna 102 and the second antenna 104).

In addition, the head unit 106 may be provided with a signal processing unit 204. The signal processing unit 204 performs modulation / demodulation and frequency conversion of a signal to be transmitted or received. The head unit 106 may generate data of a signal to be transmitted or output data of the received signal. The signal processing unit 204 can be used for generating such data and outputting the data. The control unit 206 may generate data to be transmitted and output the received data. The data may be acoustic data, image data, or other types of data. The sound data may be output through a speaker provided in the vehicle 100. [ The image data may be output through a display provided in the vehicle 100. The head unit 106 provides a user interface for user's convenience.

The control unit 206 is communicably connected to the head unit 106. The control unit 206 may be an electronic control unit (ECU) involved in the overall operation of the automobile 100. The control unit 206 may be a control device (for example, a microprocessor) provided in the head unit 106 for controlling the head unit 106. [ The control unit 206 is involved in generating data to be transmitted and outputting the received data.

The control unit 206 determines whether or not the first antenna 102 and the second antenna 104 are connected to each other based on the transmission and reception of signals using the first antenna 102, the second antenna 104 and the head unit 106, And performs communication state diagnosis control for determining the communication state of the head unit 106. [ That is, a signal transmitted through the first antenna 102 is received through the second antenna 104, and the first antenna 102 and the second antenna 104, It is judged to what extent the communication state of the mobile station 106 is good.

7 is a diagram illustrating a control method of a vehicle according to a third embodiment of the present invention. The control method shown in FIG. 7 is a control method for determining the communication state between the first antenna 102, the second antenna 104, and the head unit 106. In the control method shown in Fig. 7, the communication state is determined based on the result of communication based on the first antenna 102 for both transmission and reception, the second antenna 104 for reception only, and the single tuner 202 .

As shown in Fig. 7, the control unit 206 receives an externally input communication state diagnosis command (702). The control unit 206 responds to the reception of the communication status diagnosis command to diagnose the communication status of the unidirectional communication path leading to the "head unit 106 - first antenna 102 - second antenna 104 - head unit 106" Lt; / RTI > The transmission data generated by the control unit 206 is transmitted to the signal processing unit 204 of the head unit 106 and converted into a signal of a form that can be transmitted and then transmitted to the air through the tuner 202 and the first antenna 102 (704). The tuner 202 of the head unit 106 receives the signal transmitted through the first antenna 102 through the second antenna 104 (706). The received signal is converted into data form by the signal processing unit 204 and provided to the control unit 206. [ The control unit 206 compares the data of the signal transmitted through the first antenna 102 with the data of the signal received through the second antenna 104 and determines whether the communication state is good or bad based on the comparison 708). That is, when the data of the transmitted signal and the data of the received signal agree with each other, the signal transmitted from the head unit 106 through the first antenna 102 is transmitted through the second antenna 104 and the head unit 106 In this case, the control unit 206 determines that the communication state is good. On the contrary, if the data of the transmitted signal and the data of the received signal do not coincide with each other, a signal transmitted from the head unit 106 through the first antenna 102 is transmitted from the second antenna 104 through the head unit 106 In this case, the control unit 206 determines that the communication state is poor. If it is determined that the communication state is not good (NO at 710), the control unit 206 determines whether the communication state is good or not The communication status diagnosis information for guiding that the communication status of the unidirectional communication path is poor is output to the outside (712).

If it is determined that the unidirectional communication state of the communication path leading to "head unit 106 - first antenna 102 - second antenna 104 - head unit 106" is good (Yes in 710) It is determined that the communication state of the unidirectional communication path leading to the head unit 106 - the first antenna 102 - the second antenna 104 - the head unit 106 is good, and the communication state of the unidirectional communication path is good And outputs communication state diagnostic information for guidance to the outside (724). It is preferable to take measures for solving the unidirectional communication path leading to "head unit 106 - first antenna 102 - second antenna 104 - head unit 106" in this case.

<Fourth Embodiment>

8 is a diagram showing a control system of a fourth embodiment of diagnosing communication state of a vehicle according to the present invention. 8, the first antenna 102 is for both transmit (TX) and receive (RX), and the second antenna 104 is also for transmit (TX) and receive will be.

1, some features of the head unit 106 have been described. FIG. 8 shows the structure of the head unit 106 in more detail. As shown in FIG. 8, LTE communication, CDMA communication, and HSDPA communication can be performed using the first antenna 102 and the second antenna 104. The head unit 106 may be provided with at least one tuner 802 functioning as a communication unit for transmitting and receiving communication signals for such communication. In particular, a plurality of tuners 802 are provided in the head unit 106 according to the fourth embodiment of the present invention shown in Fig. The number of the plurality of tuners 802 may be a number corresponding to the number of the plurality of antennas (for example, the first antenna 102 and the second antenna 104). The head unit 106 transmits or receives a communication signal using a plurality of tuners 802 and a plurality of antennas.

In addition, the head unit 106 may be provided with a signal processing unit 804. The signal processing unit 804 performs modulation / demodulation and frequency conversion of a signal to be transmitted or received. The head unit 106 may generate data of a signal to be transmitted or output data of the received signal. The signal processing unit 804 can be used for generating such data and outputting the data. The control unit 806 may generate data to be transmitted and output the received data. The data may be acoustic data, image data, or other types of data. The sound data may be output through a speaker provided in the vehicle 100. [ The image data may be output through a display provided in the vehicle 100. The head unit 106 provides a user interface for user's convenience.

The control unit 806 is communicably connected to the head unit 106. [ The control unit 806 may be an electronic control unit (ECU) involved in the overall operation of the vehicle 100. [ The control unit 806 may be a control device (for example, a microprocessor) provided in the head unit 106 for controlling the head unit 106. The control unit 806 is involved in generating data to be transmitted and outputting the received data.

The control unit 806 controls the first and second antennas 102 and 104 and the second antenna 104 based on the transmission and reception of signals using the first antenna 102, the second antenna 104 and the head unit 106, And performs communication state diagnosis control for determining the communication state of the head unit 106. [ That is, a signal transmitted through one of the first antenna 102 and the second antenna 104 is received through another antenna, and the first antenna 102 and the second antenna 104 are compared with each other, (104) and the head unit (106) is good.

9 is a diagram illustrating a control method of a vehicle according to a fourth embodiment of the present invention. The control method shown in Fig. 9 is a control method for determining the communication state between the first antenna 102, the second antenna 104, and the head unit 106. Fig. In the control method shown in Fig. 9, the first antenna 102 for both transmission and reception, the second antenna 104 for both transmission and reception, and the communication based on the result of the communication based on the plurality of tuners 802 The state is judged.

As shown in Fig. 9, the control unit 806 receives an externally input communication state diagnosis command (902). The control unit 806 responds to the reception of the communication status diagnosis command by first transmitting the communication status diagnosis command to the head unit 106 via the first tuner 802 and the first antenna 102 2 tuner "812 ". The transmission data generated by the control unit 806 is transmitted to the signal processing unit 804 of the head unit 106 and converted into a signal of a form that can be transmitted and then transmitted through the first tuner 802 and the first antenna 102 (904). The second tuner 812 of the head unit 106 receives the signal transmitted through the first antenna 102 through the second antenna 104 (906). The received signal is converted into data form by the signal processing unit 804 and provided to the control unit 806. The control unit 806 compares the data of the signal transmitted through the first antenna 102 with the data of the signal received through the second antenna 104 and determines whether the communication state is good or bad based on the comparison 908). That is, when the data of the transmitted signal and the data of the received signal agree with each other, a signal transmitted from the first tuner 802 of the head unit 106 through the first antenna 102 is completely transmitted to the second antenna 104 Is received through the second tuner 812 of the head unit 106. In this case, the controller 806 determines that the communication state is good. On the contrary, if the data of the transmitted signal and the data of the received signal do not coincide with each other, a signal transmitted from the first tuner 802 of the head unit 106 through the first antenna 102 is transmitted from the second antenna 104 Is not fully received through the second tuner 812 of the head unit 106. In this case, the control unit 806 determines that the communication state is poor. If it is determined that the communication state is not good (NO at 910), the control unit 806 determines whether the first tuner 802 of the head unit 106, the first antenna 102, the second antenna 104, (912) the communication status diagnosis information for guiding the communication status of the unidirectional communication path leading to the &quot; second tuner 812 of the unit 106 "is poor.

Directional communication state of the communication path leading to "the first tuner 802 of the head unit 106 - the first antenna 102 - the second antenna 104 - the second tuner 812 of the head unit 106 & The control unit 806 determines that the first tuner 812 and the second antenna 104 of the head unit 106 are connected to the first antenna 102 and the head unit 106 To the second tuner 802 of the unidirectional communication path &quot;. The transmission data generated by the control unit 806 is transmitted to the signal processing unit 804 of the head unit 106 and converted into a signal of a form that can be transmitted and then transmitted through the second tuner 812 and the second antenna 104 (914). The first tuner 802 of the head unit 106 receives the signal transmitted through the second antenna 104 through the first antenna 102 (916). The received signal is converted into data form by the signal processing unit 804 and provided to the control unit 806. The control unit 806 compares the data of the signal transmitted through the second antenna 104 with the data of the signal received through the first antenna 102, and determines whether the communication state is good or bad through the comparison 918). That is, when the data of the transmitted signal and the data of the received signal agree with each other, the signal transmitted from the second tuner 812 of the head unit 106 through the second antenna 104 is completely transmitted to the first antenna 102 Is received through the first tuner 802 of the head unit 106. In this case, the controller 806 determines that the communication state is good. On the contrary, if the data of the transmitted signal and the data of the received signal do not coincide with each other, a signal transmitted from the first tuner 802 of the head unit 106 through the first antenna 102 is transmitted from the second antenna 104 Is not fully received through the second tuner 812 of the head unit 106. In this case, the control unit 806 determines that the communication state is poor. If it is determined that the communication state is poor (No in step 920), the control unit 806 determines whether or not the second tuner 812 of the head unit 106, the second antenna 104, the first antenna 102, (922) the communication status diagnosis information for guiding that the communication state of the unidirectional communication path leading to the &quot; first tuner 802 of the unit 106 "is poor. The communication state of the unidirectional communication path leading to "the second tuner 812 of the head unit 106 - the second antenna 104 - the first antenna 102 - the first tuner 802 of the head unit 106 & The first tuner 802 of the head unit 106, the first antenna 102, the second antenna 104, and the head unit 106 of the head unit 106 are set to "Yes " The first tuner 802 of the head unit 106 - the first antenna 102 - the second antenna 104 of the head unit 106 is judged to be good, as the communication state of the unidirectional communication path leading to the " second tuner 812 of the head unit 106 & The communication state of the bidirectional communication path leading to the second tuner 812 of the head unit 106 - the second antenna 104 - the first antenna 102 - the first tuner 802 of the head unit 106 & It is determined that the communication status is good and the communication status diagnosis information for guiding the communication status of the bidirectional communication path is outputted to the outside (924).

9, if a unidirectional communication that leads to "the first tuner 802 of the head unit 106 - the first antenna 102 - the second antenna 104 - the second tuner 812 of the head unit 106 & Way communication that leads to the communication state of the path and the "second tuner 812 of the head unit 106 - second antenna 104 - first antenna 102 - first tuner 802 of head unit 106 & It is determined that the communication state of the unidirectional communication path is poor and measures for solving the problem can be taken if it is determined that only the communication state of the unidirectional communication path among the communication states of the path is determined to be bad.

9, if a unidirectional communication that leads to "the first tuner 802 of the head unit 106 - the first antenna 102 - the second antenna 104 - the second tuner 812 of the head unit 106 & Way communication that leads to the communication state of the path and the "second tuner 812 of the head unit 106 - second antenna 104 - first antenna 102 - first tuner 802 of head unit 106 & If it is determined that the communication state of the path is all bad, it is desirable to take measures for solving the problem of both the bidirectional communication paths.

<Fifth Embodiment>

10 is a diagram showing a control system of a fifth embodiment of diagnosing communication state of a vehicle according to the present invention. In the fifth embodiment shown in FIG. 10, the first antenna 102 is for both transmit (TX) and receive (RX), and the second antenna 104 is also for transmit (TX) only.

1, some features of the head unit 106 have been described. The structure of the head unit 106 is shown in more detail in Fig. As shown in FIG. 10, LTE communication, CDMA communication, and HSDPA communication can be performed using the first antenna 102 and the second antenna 104. The head unit 106 may be provided with at least one tuner 802 functioning as a communication unit for transmitting and receiving communication signals for such communication. In particular, a plurality of tuners 802 are provided in the head unit 106 according to the fifth embodiment of the present invention shown in FIG. The number of the plurality of tuners 802 may be a number corresponding to the number of the plurality of antennas (for example, the first antenna 102 and the second antenna 104). The head unit 106 transmits or receives a communication signal using a plurality of tuners 802 and a plurality of antennas.

In addition, the head unit 106 may be provided with a signal processing unit 804. The signal processing unit 804 performs modulation / demodulation and frequency conversion of a signal to be transmitted or received. The head unit 106 may generate data of a signal to be transmitted or output data of the received signal. The signal processing unit 804 can be used for generating such data and outputting the data. The control unit 806 may generate data to be transmitted and output the received data. The data may be acoustic data, image data, or other types of data. The sound data may be output through a speaker provided in the vehicle 100. [ The image data may be output through a display provided in the vehicle 100. The head unit 106 provides a user interface for user's convenience.

The control unit 806 is communicably connected to the head unit 106. [ The control unit 806 may be an electronic control unit (ECU) involved in the overall operation of the vehicle 100. [ The control unit 806 may be a control device (for example, a microprocessor) provided in the head unit 106 for controlling the head unit 106. The control unit 806 is involved in generating data to be transmitted and outputting the received data.

The control unit 806 controls the first and second antennas 102 and 104 and the second antenna 104 based on the transmission and reception of signals using the first antenna 102, the second antenna 104 and the head unit 106, And performs communication state diagnosis control for determining the communication state of the head unit 106. [ That is, a signal transmitted through the second antenna 104 is received through the first antenna 102, and the first antenna 102, the second antenna 104, It is judged to what extent the communication state of the mobile station 106 is good.

11 is a diagram illustrating a control method of a vehicle according to a fifth embodiment of the present invention. The control method shown in Fig. 11 is a control method for determining the communication state of the first antenna 102, the second antenna 104, and the head unit 106. Fig. In the control method shown in Fig. 11, the communication state is determined based on the result of communication based on the first antenna 102 for both transmission and reception, the second antenna 104 for transmission only, and the plurality of tuners 802 .

As shown in Fig. 11, the control unit 806 receives an externally input communication state diagnosis command (1102). The control unit 806 responds to the reception of the communication status diagnosis command in response to the reception of the communication status diagnosis command in response to the reception of the communication status diagnosis command by using the "second tuner 812 - the second antenna 104 - the first antenna 102 of the head unit 106 - Quot; tuner " 802 "of the unidirectional communication path. The transmission data generated by the control unit 806 is transmitted to the signal processing unit 804 of the head unit 106 and converted into a signal of a form that can be transmitted and then transmitted through the second tuner 812 and the second antenna 104 (1114). The first tuner 802 of the head unit 106 receives the signal transmitted through the second antenna 104 through the first antenna 102 (1116). The received signal is converted into data form by the signal processing unit 804 and provided to the control unit 806. The control unit 806 compares the data of the signal transmitted through the second antenna 104 with the data of the signal received through the first antenna 102, and determines whether the communication state is good or bad through the comparison 1118). That is, when the data of the transmitted signal and the data of the received signal agree with each other, the signal transmitted from the second tuner 812 of the head unit 106 through the second antenna 104 is completely transmitted to the first antenna 102 Is received through the first tuner 802 of the head unit 106. In this case, the controller 806 determines that the communication state is good. On the contrary, if the data of the transmitted signal and the data of the received signal do not coincide with each other, a signal transmitted from the first tuner 802 of the head unit 106 through the first antenna 102 is transmitted from the second antenna 104 Is not fully received through the second tuner 812 of the head unit 106. In this case, the control unit 806 determines that the communication state is poor. If it is determined that the communication state is bad (No in step 1120), the control unit 806 determines whether the second tuner 812 of the head unit 106, the second antenna 104, the first antenna 102, The communication status diagnosis information for guiding the communication status of the unidirectional communication path leading to the first tuner 802 of the unit 106 is poor (1122). The communication state of the unidirectional communication path leading to "the second tuner 812 of the head unit 106 - the second antenna 104 - the first antenna 102 - the first tuner 802 of the head unit 106 & The first tuner 812 of the head unit 106, the second antenna 104, the first antenna 102, and the first tuner 108 of the head unit 106 are determined to be good (Yes in 1120) (802) "and the communication state diagnostic information for guiding the communication state of the unidirectional communication path to be good is output to the outside (1124). In this case, the problem of the unidirectional communication path leading to "the second tuner 812 of the head unit 106 - the second antenna 104 - the first antenna 102 - the first tuner 802 of the head unit 106 & It is desirable to take measures for resolution.

<Sixth Embodiment>

12 is a diagram showing a control system of a sixth embodiment of diagnosing a communication state of a vehicle according to the present invention. In the sixth embodiment shown in FIG. 12, the first antenna 102 is for both transmit (TX) and receive (RX), and the second antenna 104 is for receive (RX) only.

1, some features of the head unit 106 have been described. The structure of the head unit 106 is shown in more detail in Fig. As shown in FIG. 12, LTE communication, CDMA communication, and HSDPA communication can be performed using the first antenna 102 and the second antenna 104. The head unit 106 may be provided with at least one tuner 802 functioning as a communication unit for transmitting and receiving communication signals for such communication. In particular, a plurality of tuners 802 are provided in the head unit 106 according to the sixth embodiment of the present invention shown in Fig. The number of the plurality of tuners 802 may be a number corresponding to the number of the plurality of antennas (for example, the first antenna 102 and the second antenna 104). The head unit 106 transmits or receives a communication signal using a plurality of tuners 802 and a plurality of antennas.

In addition, the head unit 106 may be provided with a signal processing unit 804. The signal processing unit 804 performs modulation / demodulation and frequency conversion of a signal to be transmitted or received. The head unit 106 may generate data of a signal to be transmitted or output data of the received signal. The signal processing unit 804 can be used for generating such data and outputting the data. The control unit 806 may generate data to be transmitted and output the received data. The data may be acoustic data, image data, or other types of data. The sound data may be output through a speaker provided in the vehicle 100. [ The image data may be output through a display provided in the vehicle 100. The head unit 106 provides a user interface for user's convenience.

The control unit 806 is communicably connected to the head unit 106. [ The control unit 806 may be an electronic control unit (ECU) involved in the overall operation of the vehicle 100. [ The control unit 806 may be a control device (for example, a microprocessor) provided in the head unit 106 for controlling the head unit 106. The control unit 806 is involved in generating data to be transmitted and outputting the received data.

The control unit 806 controls the first and second antennas 102 and 104 and the second antenna 104 based on the transmission and reception of signals using the first antenna 102, the second antenna 104 and the head unit 106, And performs communication state diagnosis control for determining the communication state of the head unit 106. [ That is, a signal transmitted through the first antenna 102 is received through the second antenna 104, and the first antenna 102 and the second antenna 104, It is judged to what extent the communication state of the mobile station 106 is good.

13 is a diagram illustrating a control method of a vehicle according to a sixth embodiment of the present invention. The control method shown in FIG. 13 is a control method for determining the communication state between the first antenna 102, the second antenna 104, and the head unit 106. In the control method shown in Fig. 13, the communication state is determined based on the result of communication based on the first antenna 102 for both transmission and reception, the second antenna 104 for reception only, and the plurality of tuners 802 .

As shown in Fig. 13, the control unit 806 receives an externally input communication state diagnosis command (1302). The control unit 806 responds to the reception of the communication status diagnosis command in response to the reception of the communication status diagnosis command in response to the reception of the communication status diagnosis command by the first tuner 802 of the head unit 106 and the second antenna 102 of the head unit 106 Quot; tuner 812 "of the unidirectional communication path. The transmission data generated by the control unit 806 is transmitted to the signal processing unit 804 of the head unit 106 and converted into a signal of a form that can be transmitted and then transmitted through the first tuner 802 and the first antenna 102 (1304). The second tuner 812 of the head unit 106 receives the signal transmitted through the first antenna 102 through the second antenna 104 (1306). The received signal is converted into data form by the signal processing unit 804 and provided to the control unit 806. The control unit 806 compares the data of the signal transmitted through the first antenna 102 with the data of the signal received through the second antenna 104 and determines whether the communication state is good or bad based on the comparison 1308). That is, when the data of the transmitted signal and the data of the received signal agree with each other, a signal transmitted from the first tuner 802 of the head unit 106 through the first antenna 102 is completely transmitted to the second antenna 104 Is received through the second tuner 812 of the head unit 106. In this case, the controller 806 determines that the communication state is good. On the contrary, if the data of the transmitted signal and the data of the received signal do not coincide with each other, a signal transmitted from the first tuner 802 of the head unit 106 through the first antenna 102 is transmitted from the second antenna 104 Is not fully received through the second tuner 812 of the head unit 106. In this case, the control unit 806 determines that the communication state is poor. If it is determined that the communication state is poor (NO at 1310), the control unit 806 determines whether the first tuner 802 of the head unit 106, the first antenna 102, the second antenna 104, The communication status diagnosis information for guiding the communication status of the unidirectional communication path leading to the second tuner 812 of the unit 106 is poor (1312).

Directional communication state of the communication path leading to "the first tuner 802 of the head unit 106 - the first antenna 102 - the second antenna 104 - the second tuner 812 of the head unit 106 & The first tuner 802 of the head unit 106, the first antenna 102, the second antenna 104, and the second tuner 102 of the head unit 106 are determined to be good (Yes in 1310) (812) &quot;, and outputs the communication status diagnosis information for guiding the communication status of the unidirectional communication path to the outside (1324). In this case, the problem of the unidirectional communication path leading to the "first tuner 802 of the head unit 106 - the first antenna 102 - the second antenna 104 - the second tuner 812 of the head unit 106" It is desirable to take measures for resolution.

<Seventh Embodiment>

14 is a diagram showing a control system of a seventh embodiment of diagnosing a communication state of a vehicle according to the present invention. As shown in Fig. 14, the automobile 100 according to the seventh embodiment of the present invention includes a plurality of antennas 102 and 104 and a head unit 106 for communication. The plurality of antennas 102 and 104 may be composed of a first antenna 102 and a second antenna 104. The control unit 1406 is communicably connected to the head unit 106. The control unit 1406 may be an electronic control unit (ECU) involved in the overall operation of the vehicle 100. [ The control unit 1406 may be a control device (for example, a microprocessor) provided in the head unit 106 for controlling the head unit 106. [ The control unit 1406 is involved in generating data to be transmitted and outputting the received data.

The control unit 1406 controls the first antenna 102 and the second antenna 104 and the second antenna 104 based on the transmission and reception of signals using the first antenna 102, the second antenna 104 and the head unit 106, And performs communication state diagnosis control for determining the communication state of the head unit 106. [ That is, a signal transmitted through one of the first antenna 102 and the second antenna 104 is received through another antenna, and the first antenna 102 and the second antenna 104 are compared with each other, (104) and the head unit (106) is good.

In addition, the control unit 1406 instructs that the communication state of the bidirectional / unidirectional communication path leading to "head unit 106 - first antenna 102 - second antenna 104 - head unit 106 & And outputs the communication state diagnosis information for the external apparatus 1450 to the external measurement apparatus 1450. To this end, the external measuring apparatus 1450 may be electrically connected to the data output terminal of the control unit 1406 so as to be communicable. The external measurement device 1450 displays the communication status diagnosis information output from the control unit 1406 through a display or the like so that a driver or a maintenance person can confirm the communication status.

For this purpose, a means for generating a communication status diagnosis command may be provided in the interior of the vehicle 100. For example, one or more of the buttons of the head unit 106 may be operated in combination to cause the communication status diagnosis command to occur. Alternatively, a graphic user interface may be implemented on a touch screen type display provided in the head unit 106, navigation, or the like, and a communication status diagnosis command may be generated by touching the touch screen.

&Lt; Eighth Embodiment >

15 is a diagram showing a control system of an eighth embodiment of diagnosing a communication state of a vehicle according to the present invention. As shown in Fig. 15, an automobile 100 according to an eighth embodiment of the present invention includes a plurality of antennas 102 and 104 and a head unit 106 for communication. The plurality of antennas 102 and 104 may be composed of a first antenna 102 and a second antenna 104. The control unit 1506 is communicably connected to the head unit 106. [ The control unit 1506 may be an electronic control unit (ECU) that is involved in the overall operation of the vehicle 100. The control unit 1506 may be a control device (for example, a microprocessor) provided in the head unit 106 for controlling the head unit 106. [ The control unit 1506 is involved in generating data to be transmitted and outputting the received data.

The control unit 1506 controls the first antenna 102 and the second antenna 104 and the second antenna 104 based on the transmission and reception of signals using the first antenna 102, the second antenna 104, And performs communication state diagnosis control for determining the communication state of the head unit 106. [ That is, a signal transmitted through one of the first antenna 102 and the second antenna 104 is received through another antenna, and the first antenna 102 and the second antenna 104 are compared with each other, (104) and the head unit (106) is good.

In addition, the control unit 1506 instructs that the communication state of the bidirectional / unidirectional communication path leading to "head unit 106 - first antenna 102 - second antenna 104 - head unit 106 & To the display 1550 provided in the interior of the vehicle 100. The display 1550 is provided with the communication status diagnosis information. To this end, the display 1550 may be electrically connected to the data output terminal of the controller 1506 so as to be communicable. The communication status diagnosis information output from the control unit 1506 is displayed on the display 1550 provided inside the automobile 100 so that the driver or the person in charge of maintenance can check the communication status.

For this purpose, a means for generating a communication status diagnosis command may be provided in the interior of the vehicle 100. For example, one or more of the buttons of the head unit 106 may be operated in combination to cause the communication status diagnosis command to occur. Alternatively, a graphic user interface may be implemented on a touch screen type display provided in the head unit 106, navigation, or the like, and a communication status diagnosis command may be generated by touching the touch screen.

100: Cars
102: first antenna
104: second antenna
106: Head unit
202, 802, 812: tuner
204, 804:
206, 806, 1406, 1506:

Claims (26)

A first antenna;
A second antenna;
At least one communication unit performing communication through at least one of the first antenna and the second antenna;
And a control unit for determining a communication state of the communication unit with the first antenna and the second antenna from a result of communication between the first antenna and the second antenna. The method according to claim 1,
Wherein the at least one communication unit comprises a single tuner. 3. The method of claim 2,
Wherein the single tuner is provided in the head unit. 3. The method of claim 2,
The first antenna is for transmission and reception;
Wherein the second antenna is for transmission and reception. 5. The apparatus of claim 4,
Control the tuner to transmit a signal via the first antenna;
Receive a signal transmitted through the first antenna through the second antenna;
And compares a transmission signal of the first antenna with a reception signal of the second antenna to determine a communication state of the tuner, the first antenna, and the second antenna. 5. The apparatus of claim 4,
Control the tuner to transmit a signal via the second antenna;
Receive a signal transmitted through the second antenna through the first antenna;
And compares a transmission signal of the second antenna with a reception signal of the first antenna to determine a communication state of the tuner, the first antenna, and the second antenna. 3. The method of claim 2,
The first antenna is for transmission and reception;
Wherein the second antenna is for transmission. 8. The apparatus of claim 7,
Control the tuner to transmit a signal via the second antenna;
Receive a signal transmitted through the second antenna through the first antenna;
And compares a transmission signal of the second antenna with a reception signal of the first antenna to determine a communication state of the tuner, the first antenna, and the second antenna. 3. The method of claim 2,
The first antenna is for transmission and reception;
Wherein the second antenna is for receiving. 10. The apparatus according to claim 9,
Control the tuner to transmit a signal via the first antenna;
Receive a signal transmitted through the first antenna through the second antenna;
And compares a transmission signal of the first antenna with a reception signal of the second antenna to determine a communication state of the tuner, the first antenna, and the second antenna. The method according to claim 1,
Wherein the at least one communication unit includes a plurality of tuners;
Wherein the plurality of tuners comprises a first tuner and a second tuner. 12. The method of claim 11,
Wherein the plurality of tuners are provided in the head unit. 12. The method of claim 11,
The first antenna is for transmission and reception;
Wherein the second antenna is for transmission and reception. 14. The apparatus of claim 13,
Control the first tuner to transmit a signal through the first antenna;
Controls the second tuner to receive a signal transmitted through the first antenna through the second antenna;
And compares a transmission signal of the first antenna with a reception signal of the second antenna to determine a communication state of the first tuner, the first antenna, the second antenna, and the second tuner. 14. The apparatus of claim 13,
Control the second tuner to transmit a signal through the second antenna;
Control the first tuner to receive a signal transmitted through the second antenna through the first antenna;
And compares a transmission signal of the second antenna with a reception signal of the first antenna to determine a communication state of the first tuner, the first antenna, the second antenna, and the second tuner. 12. The method of claim 11,
The first antenna is for transmission and reception;
Wherein the second antenna is for transmission. 17. The apparatus of claim 16,
Control the second tuner to transmit a signal through the second antenna;
Control the first tuner to receive a signal transmitted through the second antenna through the first antenna;
And compares a transmission signal of the second antenna with a reception signal of the first antenna to determine a communication state of the first tuner, the first antenna, the second antenna, and the second tuner. 12. The method of claim 11,
The first antenna is for transmission and reception;
Wherein the second antenna is for receiving. 19. The apparatus of claim 18,
Control the first tuner to transmit a signal through the first antenna;
Controls the second tuner to receive a signal transmitted through the first antenna through the second antenna;
And compares a transmission signal of the first antenna with a reception signal of the second antenna to determine a communication state of the first tuner, the first antenna, the second antenna, and the second tuner. The method according to claim 1,
Wherein one of the first antenna and the second antenna is installed outside the vehicle;
Wherein one of the first antenna and the second antenna is installed inside the automobile. The method according to claim 1,
Wherein one of the first antenna and the second antenna is installed in a loop of the vehicle;
Wherein one of the first antenna and the second antenna is installed on a crash pad of the automobile. The method according to claim 1,
Wherein the first antenna and the second antenna are for at least one of LTE communication, CDMA communication, and HSDPA communication. A first antenna;
A second antenna;
At least one communication unit performing communication through at least one of the first antenna and the second antenna;
A controller for determining a communication state of the communication unit with the first antenna and the second antenna based on a result of communication between the first antenna and the second antenna and outputting a communication state diagnosis result;
And a display unit for displaying the result of the communication state diagnosis. 24. The method of claim 23,
Wherein the display unit is a display provided in a separate measuring device. 24. The method of claim 23,
Wherein the display unit is a display provided on the automobile. Performing communication through at least one of the first antenna and the second antenna;
And determining a communication state of the communication unit with the first antenna and the second antenna based on a result of communication between the first antenna and the second antenna.

Images