KR102673309B1 - Device and method for optimizing power of vehicle - Google Patents

Abstract

The present invention relates to an apparatus and method for optimizing the power of a vehicle, and in particular, to a technology that allows optimizing the power of a vehicle using a wireless mobile communication network. The present invention includes a telematics unit that calculates the amount of data consumed when providing a hotspot service with the vehicle's engine turned off and manages power in response to the electric field value of the reception sensitivity of the wireless communication network, and wireless communication by connecting to the wireless communication network. A communication module that controls the operation, a wireless communication unit that performs wireless communication to form a hotspot around the vehicle, and detects the vehicle's ignition-off state, and sends discharge notification information to the user terminal in response to the power detected by the telematics unit. Includes a control unit provided.

Description

Device and method for optimizing power of vehicle}

The present invention relates to an apparatus and method for optimizing the power of a vehicle, and in particular, to a technology that allows optimizing the power of a vehicle using a wireless mobile communication network.

Recently, due to the development of information and communication technology, various types of information provision services that provide real-time information in various fields to a large number of subscribers through wired and wireless communication networks are being applied.

As an example of an information provision service, convenience devices using telematics and portable terminals are also provided in vehicles. A representative example is a remote control system that can remotely inspect various devices applied to a vehicle. As telematics services increase, the reliability of additional functions such as remote control has a significant impact on consumer satisfaction.

A remote control system is a service that is performed through mutual wireless communication between a remotely located server, a vehicle's telematics unit, and a portable terminal (for example, a remote control terminal or smartphone) owned by the driver. The remote control system provides services that can check the overall condition of the vehicle, including the vehicle's current maintenance status, vehicle ignition lock, vehicle speed reduction, remote air conditioning control, remote door lock control, and theft detection.

An embodiment of the present invention makes it possible to optimize the power used when connecting a hotspot while the vehicle's engine is turned off.

Embodiments of the present invention make it possible to optimize the power of modules with high current consumption in response to the mobile communication network environment and the number of terminals connecting to the wireless Internet.

The vehicle power optimization device according to an embodiment of the present invention includes a telematics unit that calculates the amount of data consumed when providing a hotspot service with the vehicle engine turned off and manages power in response to the electric field value of the reception sensitivity of the wireless communication network. ; A communication module that controls access to a wireless communication network to perform wireless communication; a wireless communication unit that performs wireless communication to form a hotspot around the vehicle; and a control unit that detects a state in which the vehicle's engine is turned off and provides discharge notification information to the user terminal in response to the power detected by the telematics unit.

A method for optimizing power for a vehicle according to another embodiment of the present invention includes the steps of determining whether the vehicle's ignition is in an off state when hotspot mode execution information is received from a user terminal; Operating a timer logic to measure the usage time of a hotspot service while the vehicle's engine is off; Measuring data consumption to determine whether the available data is less than a certain amount, and if the available data is less than a certain amount, sending a message informing the user terminal of the remaining amount of data; And determining whether the usage time of the hotspot service exceeds the hotspot usage time calculated by the power optimization device, and if the usage time of the hotspot service exceeds the calculated hotspot usage time, transmitting a message notifying that the usage time has been exceeded to the user terminal. .

A method for optimizing power for a vehicle according to another embodiment of the present invention includes the steps of diagnosing the electric field state of a wireless communication network at a specific period and updating the electric field state; When using a hotspot service, determining whether the electric field value of the reception sensitivity is greater than a certain value, and reducing the output power of the communication module if the electric field value of the reception sensitivity is greater than a certain value; and determining whether the number of devices connected to the wireless communication network is less than a certain number, and reducing the transmission power of the wireless communication unit when the number of devices is less than a certain number.

Embodiments of the present invention provide the effect of providing convenience to customers by optimizing the power used when connecting a hotspot while the vehicle's engine is off and notifying the available time of the hotspot.

In addition, the embodiments of the present invention are for illustrative purposes, and those skilled in the art will be able to make various modifications, changes, substitutions, and additions through the technical spirit and scope of the appended claims, and such modifications and changes fall within the scope of the patent claims below. It should be viewed as such.

1 is a system configuration diagram of a vehicle power optimization device according to an embodiment of the present invention.
FIG. 2 is a diagram for explaining a vehicle power optimization device according to the embodiment of FIG. 1.
3 and 4 are flowcharts of a method for optimizing power for a vehicle according to the embodiment of FIG. 1.
5 is a block diagram showing a computing system executing a method for optimizing power for a vehicle according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. When adding reference numerals to components in each drawing, it should be noted that identical components are given the same reference numerals as much as possible even if they are shown in different drawings. Additionally, when describing embodiments of the present invention, if detailed descriptions of related known configurations or functions are judged to impede understanding of the embodiments of the present invention, the detailed descriptions will be omitted.

1 is a system configuration diagram including a vehicle power optimization device according to an embodiment of the present invention.

The system according to the embodiment of FIG. 1 includes a server 10, a base station 20, a power optimization device 100, and user terminals 200 and 210. Here, the power optimization device 100 includes a telematics unit 110, a communication module 120, a wireless communication unit 130, and a control unit 140.

The server 10 supports applications to provide telematics services such as safety and security, vehicle management, remote control, route guidance, and concierge services in conjunction with the user terminals 200 and 210.

The power optimization device 100 may communicate directly with the server 10 or may communicate with the server 10 through the base station 20. In an embodiment of the present invention, the power optimization device 100 may be installed in a head unit terminal of a vehicle. The head unit terminal provided in the vehicle may be implemented as an Audio/Video/Navigation (AVN) or multimedia device.

The power optimization device 100 can stably manage the vehicle's power and increase power use time by determining actual usage conditions when providing a hotspot service while the vehicle's engine is turned off. Here, the area where Internet access is possible through Wi-Fi communication is called a hotspot.

When the vehicle's engine is turned on, power is managed by charging the vehicle's battery. However, when the vehicle's engine is turned off, a remote operation notification service is needed to reduce power consumption due to battery discharge. The power optimization device 100 optimizes power by calculating data consumption to provide long-term hotspot service to customers and provides discharge notification information to customers.

The telematics unit 110 can prevent the vehicle battery from being discharged by optimizing power by diagnosing the electric field situation of the communication network and the number of connected user terminals 200 and 210.

Internet service within the vehicle is provided through connection between the telematics unit 110 and a wireless mobile communication network. Connection between the telematics unit 110 and a wireless mobile communication network enables wireless Internet service within the vehicle.

That is, the telematics unit 110 operates as a wireless communication repeater to form a Wi-Fi zone within the vehicle. The range of the Wi-Fi zone formed by the telematics unit 110 is not limited to the interior space of the vehicle, and the Wi-Fi zone is formed over a certain range around the vehicle.

Users can freely use the wireless Internet environment and remotely control vehicle functions by connecting their user terminals 200 and 210 to the Wi-Fi channel within the Wi-Fi zone thus formed. Here, the user terminals 200 and 210 may represent mobile communication terminals such as mobile phones and smart phones, tablet PCs, or PDAs.

Depending on the embodiment, the telematics unit 110 allows the user to remotely diagnose the vehicle through a wireless network and use various information such as traffic and daily life information and emergency rescue. According to another embodiment, the telematics unit 110 can deliver phone messages to others, send and receive voice emails, and download audio books.

According to another embodiment, the telematics unit 110 can perform various services such as news reception, stock investment, e-commerce, financial transactions, hotel reservations, fax transmission and reception, games, vehicle accidents and theft, depending on the service type. According to another embodiment, when a traffic accident occurs, the telematics unit 110 can automatically track the location of the accident vehicle using GPS satellites and deliver it to the nearest 119 rescue team.

According to another embodiment, the telematics unit 110 may perform communication between various internal electronic devices and with user terminals 200 and 210, which are external terminals. According to another embodiment, the telematics unit 110 may include a CAN communication module, a USB communication module, and a Bluetooth communication module in addition to Wi-Fi communication. Additionally, the telematics unit 110 may further include a GPS reception module for acquiring location information from satellites, and may further include a broadcasting communication module such as TPEG, SXM, and RDS such as DMB.

According to another embodiment, the telematics unit 110 may receive various contents from a telematics center through a communication service provider. In other words, when an affiliated content provider provides various contents through a telematics center, the telematics center provides the contents to vehicles that have subscribed to the telematics service through a wireless mobile communication network. Content that can be provided through telematics services may include, for example, services such as traffic information, life information, theft detection, accident notification, and route guidance.

The communication module 120 may include a modem for wireless Internet access. For example, the communication module 120 connects to a wireless communication network of a wireless communication provider and provides wireless communication such as 3G, Long Term Evolution (LTE), Long Term Evolution-Advanced (LTE-A), and fifth generation mobile communications (5G). Make this possible. Wireless communication performed through the communication module 120 may include data communication, voice calls, sending and receiving messages, the Internet, etc.

The wireless communication unit 130 forms a hotspot inside and around the vehicle. That is, when connected to a wireless communication network through the communication module 120, the wireless communication unit 130 forms a Wi-Fi zone in a certain area around it. When a Wi-Fi zone is formed by the wireless communication unit 130, devices that support Wi-Fi can connect and use Wi-Fi communication.

The control unit 140 operates as an access point (AP) and participates in the overall operation of the telematics unit 110 to perform necessary control. For example, the control unit 140 controls the communication module 120 to create a wireless communication and wireless Internet environment such as 4G and 5G. Additionally, the control unit 140 controls the wireless communication unit 130 to form a hotspot inside and around the vehicle.

The control unit 140 can remotely select a network setting function through the user terminals 200 and 210 and select a hotspot service function through the selected network setting function. The control unit 140 may determine whether the vehicle ignition is in an off state. The control unit 140 may transmit information about the power state of the vehicle to the user terminals 200 and 210 to inform the user of the information about the power state.

Hereinafter, the detailed configuration of the telematics unit 110 will be described.

The telematics unit 110 includes a communication network diagnosis unit 111, timer logic 112, current control unit 113, and power management unit 114.

The communication network diagnosis unit 111 diagnoses the electric field status of the wireless communication network. That is, the communication network diagnosis unit 111 can determine the electric field strength of the connected wireless communication network based on the reference signal received power (RSRP) value. Here, reception sensitivity represents the minimum electric field value that can be recognized as a signal corresponding to reception performance in a wireless communication network.

The timer logic 112 may remotely receive a vehicle power (ACC) off message from the user terminals 200 and 210 through the control unit 140. The timer logic 112 checks the time from when the vehicle power (ACC) off message is received. That is, the timer logic 112 can check the time when the hotspot service can be used from the time the vehicle's engine is turned off.

When the data communication channel is connected, current consumption increases due to the output power of the communication module 120. Furthermore, when the engine is turned off and the power source (ACC) is turned off, the vehicle's battery is not in a charging state.

Accordingly, the current control unit 113 controls the current consumed when using data in response to the reception sensitivity around the telematics unit 110 and the number of devices connected to the wireless communication network. That is, the current control unit 113 optimizes the output power of modules with high current consumption according to the electric field value of the reception sensitivity and the number of devices, thereby increasing service use time in remote mode.

For example, when using a hotspot service, the current control unit 113 averages, collects, and stores the electric field value of reception sensitivity in specific time units (for example, in units of 1 minute). An example of adjusting the output power of the communication module 120 according to the electric field value of the reception sensitivity stored in the current control unit 113 is shown in [Table 1 below].

RSRP Output power of communication module -100dBm or more back off -90dBm or more -3dB -80dBm or more -6dB -70dBm or more -9dB

As shown in [Table 1], when the electric field value of the stored reception sensitivity is greater than a specific value (for example, -100 dBm), the current control unit 113 backs off the output power of the communication module 120. Off) to reduce current consumption.

In the embodiment of the present invention, the electric field value of the reception sensitivity and the output power value of the communication module 120 are not limited to the table above and can be sufficiently changed depending on the embodiment.

In addition, the current control unit 113 determines the amount of data used in the communication module 120 and outputs setting information to the wireless communication unit 130 when the data usage exceeds a certain amount (for example, 50%). do. The current control unit 113 determines the number of devices connected to the wireless communication unit 130 through a wireless communication network, that is, the number of user terminals 200 and 210, and determines the transmission power (e.g., of the signal) of the wireless communication unit 130. size).

For example, when the number of devices connected to the wireless communication network is less than a certain number (eg, 1), the transmission power of the wireless communication unit 130 is backed off. In the embodiment of the present invention, reducing the transmission power of the wireless communication unit 130 when there is one or less devices connected to the wireless communication network has been described as an example, but the embodiment of the present invention is not limited to this and the number of devices is sufficient. Change is possible.

The power management unit 114 refers to the output of the current control unit 113 and the timer logic 112 to store and manage the available time of all data in the power discharge table. For example, the power management unit 114 may check the data availability time and send a push notification message to the user terminals 200 and 210 that have subscribed to the service. For example, the power management unit 114 may report the remaining amount of data usable time as a percentage (70% remaining, 50% remaining, 30% remaining, 5% remaining, etc.).

Additionally, the power management unit 114 controls the power of the telematics unit 110 to be shut down when the data use time is exceeded. Additionally, the power management unit 114 may provide a notification message to the user terminals 200 and 210 that the remaining service time has been exhausted. Depending on the embodiment, if an emergency rescue situation occurs when the service time has expired, the user may charge the vehicle's battery by remote starting to prevent service limitations.

FIG. 2 is a diagram for explaining the vehicle power optimization device 100 according to the embodiment of FIG. 1 .

Referring to FIG. 2, the power optimization device 100 according to an embodiment of the present invention provides a hotspot service through the communication module 120 after the vehicle is turned off. The power optimization device 100 can prevent the vehicle's battery from being discharged by optimizing the power by determining the electric field value of the reception sensitivity and the quantity of connected devices.

That is, the user logs in to the application provided by the server 10 and remotely attempts to connect to the vehicle's Wi-Fi. (Step ①) The power optimization device 100 allows the user to access the wireless communication network through the user terminals 200 and 210. When connected, processing for the hotspot service is performed (step ②).

A hotspot service is provided to the user terminals 200 and 210 through the vehicle's telematics unit 110. (Step ③) The power optimization device 100 optimizes power to provide a hotspot service and reports the service status to the server 10. ) can be sent to (Step ④)

3 and 4 are flowcharts of a method for optimizing power for a vehicle according to the embodiment of FIG. 1. The embodiment of FIG. 3 shows a service interworking method between the power optimization device 100 and the user terminals 200 and 210, and the embodiment of FIG. 4 explains the power control logic of the power optimization device 100.

Referring to FIG. 3, the user logs into the dedicated application provided by the server 10 through the user terminals 200 and 210 and runs the app. (Step S1) The user uses telematics through the user terminals 200 and 210. When the service menu is selected (step S2), the power optimization device 100 is remotely connected via a wireless communication network. Then, the user executes the hotspot mode through the user terminals 200 and 210 (step S3).

The control unit 140 of the power optimization device 100 determines whether the hotspot mode is on and the communication module 120 is in 4G mode (step S4). That is, the control unit 140 determines whether the communication module 120 is in the 4G mode. The module 120 determines whether the wireless network is in 4G (LTE) status around the vehicle executing the service.

If the hotspot mode is not on and the communication module 120 is not in a 4G (LTE) service area, the control unit 140 reports a situation in which the service is not supported to the user terminal through a short message service (SMS). It is transmitted to (200, 210). (Step S5) That is, the control unit 140 can determine whether the wireless network is 4G (LTE) and inform the user whether the service is supported.

When the hotspot mode is on and the communication module 120 supports 4G mode, the control unit 140 determines whether the vehicle ignition is off (step S6). If the vehicle ignition is off, the control unit 140 determines whether the vehicle ignition is off. In case of the driving mode, the power optimization algorithm is not performed in the power optimization device 100 (step S7). On the other hand, when the vehicle ignition is off, the remote mode is entered and the power optimization algorithm is executed (step S8).

Afterwards, when the power optimization algorithm operation is performed in the power optimization device 100, a connection to the execution of the power optimization operation is displayed on the user terminals 200 and 210. Then, the user inputs a request signal for measuring data consumption current through the user terminals 200 and 210 and operates the timer logic 112 to measure the usage time of the hotspot service.

Afterwards, the power optimization device 100 transmits calculation information about the amount of data consumption current measured by the current control unit 113 and the hotspot service use time measured by the timer logic 112 to the user terminals 200 and 210. (Step S9)

The power optimization device 100 measures data consumption and determines whether the available data is less than a certain amount (for example, 5% or less). (Step S10) If the available data is less than a certain amount, telematics A push message notifying the remaining amount of data is sent to the user terminals 200 and 210 in conjunction with the center, and then the service is terminated (step S11).

The power optimization device 100 counts the usage time of the hotspot service through the timer logic 112 and determines whether the hotspot usage time calculated by the power optimization device 100 has been exceeded (step S12). If If the hotspot usage time has not been exceeded, continue with step S9. On the other hand, when the hotspot usage time is exceeded, a message notifying that the usage time has been exceeded is transmitted to the user terminals 200 and 210, and then the service is terminated.

Referring to FIG. 4, the hotspot service is started in response to remote connection of the user terminals 200 and 210. Hotspot service is also required in parking spaces (e.g., travel destinations, large supermarkets, underground parking lots) after the vehicle's engine is turned off. An embodiment of the present invention determines the vehicle's ignition state and operates a separate hotspot low-power logic when the ignition is turned off.

The power optimization device 100 drives power operation logic to execute the hotspot service through the telematics unit 110. (Step S21) The communication network diagnosis unit 111 diagnoses the electric field status of the wireless communication network at a specific period and determines the electric field status. Update (step S22)

When using the hotspot service, the current control unit 113 determines whether the electric field value of the reception sensitivity is greater than a specific value (step S23). If the electric field value of the reception sensitivity is greater than a specific value, the current control unit 113 determines whether the electric field value of the reception sensitivity is greater than a specific value. It determines the situation and reduces the output power of the communication module 120 (step S24). On the other hand, if the electric field value of the reception sensitivity is less than a certain value, the current control unit 113 determines it to be a weak electric field situation and reduces the output power of the communication module 120. Perform normal operation logic (step S25).

Afterwards, the current control unit 113 determines whether there is one or less devices connected to the vehicle's wireless communication network (Wi-Fi) (step S26). If there is one or less devices connected, the data usage amount is a certain amount. (50%) or more, the transmission power of the wireless communication unit 130 is reduced (step S27). On the other hand, when two or more devices are connected, the wireless communication unit 130 is allowed to perform normal operation logic. (step S27) S28)

Next, the timer logic 112 compares the counted use time of the hotspot service with the time in the power discharge table calculated by the telematics unit 110 (step S29). If the counted time of hotspot service is in the power discharge table If the time is less than or equal to , step S22 is performed. On the other hand, if the counted time of the hotspot service exceeds the time of the power discharge table, a message notifying that the usage time has been exceeded is transmitted to the user terminals 200 and 210, and then the service is terminated (step S30).

If the counted usage time of the hotspot service exceeds the time in the power discharge table and the service usage time expires, the hotspot service may be continued while the vehicle is started by performing a remote start to provide emergency rescue services, etc. (Step S31) A message notifying that the hotspot service can continue to be used is sent to the user terminals 200 and 210, and then the service is terminated. (Step S32)

As described above, the embodiment of the present invention provides a hotspot function for customers to work or watch videos through a laptop or tablet PC when parking the vehicle in a parking lot or resort, while delivering a stable power status of the vehicle to the customer. there is. Additionally, an embodiment of the present invention can provide the maximum service time by identifying the mobile communication network environment and the number of connected devices. Additionally, an embodiment of the present invention can provide convenience to customers by notifying them of the available time for hotspots to prevent the vehicle's battery from being discharged.

Figure 5 is a block diagram showing a computing system executing a method for optimizing power for a vehicle according to an embodiment of the present invention.

Referring to FIG. 5, the computing system 1000 includes at least one processor 1100, a memory 1300, a user interface input device 1400, a user interface output device 1500, and storage connected through a bus 1200. It may include (1600), and a network interface (1700).

The processor 1100 may be a central processing unit (CPU) or a semiconductor device that processes instructions stored in the memory 1300 and/or storage 1600. Memory 1300 and storage 1600 may include various types of volatile or non-volatile storage media. For example, the memory 1300 may include read only memory (ROM) and random access memory (RAM).

Accordingly, the steps of the method or algorithm described in connection with the embodiments disclosed herein may be directly implemented in hardware or software modules executed by the processor 1100, or a combination of the two. Software modules reside in a storage medium (i.e., memory 1300 and/or storage 1600), such as RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, or CD-ROM. You may. An exemplary storage medium is coupled to processor 1100, which can read information from and write information to the storage medium. Alternatively, the storage medium may be integrated with processor 1100. The processor and storage medium may reside within an application specific integrated circuit (ASIC). The ASIC may reside within the user terminal. Alternatively, the processor and storage medium may reside as separate components within the user terminal.

Those skilled in the art to which the present invention pertains should understand that the present invention can be implemented in other specific forms without changing its technical idea or essential features, and that the embodiments described above are illustrative in all respects and not restrictive. Just do it. The scope of the present invention is indicated by the claims described later rather than the detailed description, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present invention. .

Claims (20)

A telematics unit that calculates data consumption when providing a hotspot service with the vehicle's engine turned off and manages power in response to the electric field value of the reception sensitivity of the wireless communication network;
a communication module that connects to the wireless communication network and controls wireless communication;
a wireless communication unit that performs the wireless communication to form a hotspot around the vehicle; and
A control unit that detects a state in which the vehicle's engine is turned off and provides discharge notification information to the user terminal in response to the power detected by the telematics unit,
The telematics department
a communication network diagnosis unit that diagnoses an electric field value of the reception sensitivity of the wireless communication network;
Timer logic that checks the time during which the hotspot service can be used from the time the vehicle's engine is turned off;
a current control unit that controls current consumed when using the data in response to the electric field value of the reception sensitivity and the number of devices connected to the wireless communication network; and
A power optimization device for a vehicle, comprising a power management unit that stores the available time of the data in response to the output of the current control unit and the timer logic and provides the available time to the user terminal. delete The method of claim 1, wherein the current control unit
A vehicle power optimization device that increases the usage time of the hotspot service by adjusting the output power of a module whose current consumption is above a certain value according to the electric field value of the reception sensitivity and the number of devices. The method of claim 1, wherein the current control unit
A vehicle power optimization device that averages, collects, and stores the electric field value of the reception sensitivity in specific time units when using the hotspot service. The method of claim 1, wherein the current control unit
A vehicle power optimization device that reduces current consumption by back-off the output power of the communication module when the receiving sensitivity electric field value is greater than a specific value. The method of claim 1, wherein the current control unit
A power optimization device for a vehicle that determines the amount of data used in the communication module and outputs setting information to the wireless communication unit when the amount of data used exceeds a specific amount. The method of claim 1, wherein the current control unit
A vehicle power optimization device that backs off the transmission power of the wireless communication unit when the number of devices connected to the wireless communication network is less than a certain number. The method of claim 1, wherein the power management unit
A power optimization device for a vehicle that controls the power of the telematics unit to be shut down when the available time for the data is exceeded. The method of claim 1, wherein the telematics unit
A vehicle power optimization device that provides the hotspot service while the vehicle's engine is turned on when a remote start is received from the user terminal. When hotspot mode execution information is received from the user terminal, determining whether the vehicle ignition is in an off state;
operating a timer logic to measure the usage time of a hotspot service while the vehicle's engine is off;
Measuring data consumption based on the electric field value of the reception sensitivity of a wireless communication network and a current controlled in response to the number of devices connected to the wireless communication network;
determining whether the available data is less than a certain amount based on measuring the data consumption, and transmitting a message informing the user terminal of the remaining amount of data if the available data is less than a certain amount; and
Determining whether the usage time of the hotspot service exceeds the hotspot usage time calculated by the power optimization device, and if the usage time of the hotspot service exceeds the calculated hotspot usage time, sending a message notifying that the usage time has been exceeded to the user terminal. Methods for optimizing power for vehicles, including: According to clause 10,
A method of optimizing power for a vehicle further comprising receiving selection information of a telematics service menu by remotely connecting the user terminal through the wireless communication network. According to clause 10,
A method of optimizing power for a vehicle further comprising determining whether the hotspot mode is on and whether the communication module is in a specific mode and transmitting whether service is supported to the user terminal. According to clause 10,
A method of optimizing power for a vehicle further comprising receiving a request signal for measuring data consumption current through the user terminal. Diagnosing the electric field state of a wireless communication network at a specific period and updating the electric field state;
When using a hotspot service, determining whether the electric field value of the reception sensitivity is greater than a certain value, and reducing the output power of the communication module if the electric field value of the reception sensitivity is greater than a certain value; and
A method of optimizing power for a vehicle comprising determining whether the number of devices connected to the wireless communication network is less than a certain number, and reducing the transmission power of the wireless communication unit when the number of devices is less than a certain number. According to clause 14,
A method of optimizing power for a vehicle, further comprising: initiating a hotspot service in response to remote access of a user terminal. According to clause 14,
Driving power operation logic for executing the hotspot service through a telematics unit of a vehicle; and
A method of optimizing power for a vehicle further comprising reducing the transmission power of the wireless communication unit under the condition that the data usage of the communication module is more than a certain amount. According to clause 14,
Comparing the usage time of the hotspot service counted in the timer logic and the time in the power discharge table calculated by the telematics unit; and
When the counted usage time of the hotspot service exceeds the time of the power discharge table, transmitting a message notifying the usage time exceeded to the user terminal. According to clause 17,
A method of optimizing power for a vehicle further comprising providing the hotspot service while a remote start is received from the user terminal and the vehicle's engine is turned on. According to clause 17,
A method of optimizing power for a vehicle further comprising controlling the power of the telematics unit to be shut down after the usage time exceeds. According to clause 14,
A method of optimizing power for a vehicle further comprising averaging, collecting, and storing the electric field value of the reception sensitivity in specific time units when using the hotspot service.

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