TWI716884B - Mobile device and car bluetooth device self-defined area sensing distance adjustment method - Google Patents

Abstract

Provide a Bluetooth device, which is electrically connected to a device with a global positioning system; provide a mobile device, which is paired with the Bluetooth device, and within a Bluetooth signal strength that can be set, the mobile device can control the Bluetooth device To unlock a car door; set a specific parking position of a car and its corresponding Bluetooth signal strength; through the global satellite positioning system device, determine whether the current car position is within a set working range of the specific parking position; If yes, the Bluetooth device will use the Bluetooth signal strength set for the specific parking location; and set the minimum strength of the Bluetooth signal received by the Bluetooth device from the mobile device to respond to the environment with different noise interference strengths .

Description

Mobile device and car bluetooth device self-defined area sensing distance adjustment method

The invention relates to a method for adjusting the sensing distance of a Bluetooth device in a custom area, in particular to a method for adjusting the sensing distance of a mobile device and a Bluetooth device in a car.

At present, general mobile devices have the function of Bluetooth communication, and most cars are also equipped with Bluetooth devices. Therefore, the current mobile device and the car Bluetooth device interact with each other to achieve the function of unlocking the door, which is called keyless door unlocking, which is common Bluetooth communication application. Generally, the Bluetooth sensing distance of the Bluetooth device in a car does not change actively. However, if the car owner needs the Bluetooth device to automatically increase, reduce the sensing range of the Bluetooth door unlock or turn off the Bluetooth under different environments or conditions, the current The Bluetooth device in the car cannot automatically adjust or close the sensing range of the above-mentioned Bluetooth door unlocking, which causes some problems when the owner uses the mobile device to unlock the Bluetooth keyless door. For example, when the owner lives close to the parking position At times, such as in your own garage, when the owner is at his residence, the Bluetooth device on the car may continue to detect the owner’s mobile device and automatically unlock the door or repeatedly ask the owner whether the mobile device wants the door to be unlocked. Or even functional problems; another example: when the car is parked in a large parking lot at the work site, if the owner’s mobile device cannot be sensed by the car’s Bluetooth device within an appropriate distance and automatically unlocks the door Problems such as inconvenience in use by the car owner or affecting the safety of the car owner are caused.

In order to solve the aforementioned problem that the Bluetooth sensing distance between the mobile device and the car Bluetooth device cannot be adjusted automatically according to different environments, the present invention designs a Bluetooth keyless car door unlocking mechanism, in which the user first pairs the mobile device with the car Bluetooth device. And set the specific parking position and the Bluetooth sensing distance of the corresponding car Bluetooth device, and then use the car's global satellite positioning system, such as GPS, to locate the car itself, and transmit the obtained positioning information of the car itself to Car Bluetooth device, so when the car enters a distance range of a specific parking position set by the user, the car Bluetooth device can automatically adjust its Bluetooth sensing distance according to the user's above setting; at the same time, the user can plan multiple groups The specific parking position and its related settings are stored in the car’s Bluetooth device, so that the user can automatically use different Bluetooth sensing distances at different specific parking positions without setting it repeatedly (hereinafter referred to as Bluetooth iKE (intelligent Keyless Entry) distance) to unlock the door, which can solve the aforementioned problems and improve the practicality of unlocking the door by interacting with the mobile device and the car Bluetooth device.

Specifically, the present invention provides a method for adjusting the sensing distance between a mobile device and a Bluetooth device in a car, which includes the following main steps:

Provide a Bluetooth device, which is electrically connected to a GPS device, wherein the Bluetooth device and the GPS device are installed in a car;

Provide a car lock switch controller, which is electrically connected to the bluetooth device, wherein the car lock switch controller is installed in the car; provide a mobile device, which is paired with the bluetooth device, in a Bluetooth device that can be set Within the signal strength, automatically connect to the Bluetooth device via a dedicated application software on the mobile device, thereby controlling the Bluetooth device to unlock a car door;

The mobile device provides an electronic map to set the coordinates of a specific parking position of the car, and set the Bluetooth signal strength for the specific parking position;

Generate a current position coordinate via the global satellite positioning system device;

Determine whether a distance between the current position coordinate and the above-mentioned specific parking position coordinate is within a set working range;

If the distance between the coordinates of the current position and the coordinates of the specific parking position is within the set working range, the Bluetooth device will use the Bluetooth signal strength set for the specific parking position;

Set the minimum strength of the Bluetooth signal received by the Bluetooth device from the mobile device. So that only when the strength of the Bluetooth signal received from the mobile device by the Bluetooth device is greater than or equal to the minimum strength set above, the Bluetooth device will process the Bluetooth signal it receives from the mobile device, otherwise the The Bluetooth device will ignore the Bluetooth signal it receives from the mobile device.

The following describes the technical means adopted by the present invention to achieve the predetermined purpose in conjunction with the drawings and preferred embodiments of the present invention.

As shown in FIG. 1, in the preferred embodiment of the present invention, a car Bluetooth device 10 is located in a car 1. The car Bluetooth device 10 has Bluetooth wireless communication capabilities and can receive and transmit Bluetooth wireless signals. The car Bluetooth device 10 It also has a controller and some common wired interfaces such as USB/RS2322 or General Purpose I/O ports. The distance between the car Bluetooth device 10 and a user's mobile device 20 (such as a mobile phone) is d. Within a settable Bluetooth signal strength, the car Bluetooth device 10 can actively sense the mobile device 20 and control the car door Locking/unlocking. As for setting the Bluetooth signal strength, the main technical method used in the present invention is to set the transmission power of the car Bluetooth device 10. For example, 4 transmission powers can be set from strong to weak to off, which correspond to the respective Bluetooth signal strengths It is: strong, medium, weak, off, so that when the user's mobile device 20 is within the range of the above-mentioned strong, medium, and weak Bluetooth signal strength, it can connect to the car Bluetooth device 10 via Bluetooth, and the user can Use the aforementioned Bluetooth keyless vehicle door to unlock; the aforementioned mobile device 20 is like a general smart phone, with Bluetooth wireless communication function, display function and touch or key input function. At the same time, the user’s mobile device 20 must also install a dedicated App to correspond to the aforementioned car Bluetooth device 10, so that the mobile device 20 can interact with the car Bluetooth device 10 via the aforementioned dedicated App, so that the mobile device 20 can operate the car Bluetooth device 10 Unlock the car door. In addition, a global satellite positioning system device 30 is also located in the car 1, which is electrically connected to the car Bluetooth device 10, and can be set to regularly locate the car 1 itself, and the positioning information of the car 1 itself obtained from the positioning Transfer to the car Bluetooth device 10 immediately. The GPS device 30 can currently be GPS, Glonass, Galileo, Beidou (also known as Compass), etc., but is not limited to the above four systems. In addition, a car lock switch controller 40 is located in the car 1 and is electrically connected to the car bluetooth device 10, which can control the opening and closing of the car door, and can lock/unlock the car door according to the control of the car bluetooth device 10. In addition, the user can display, operate, and set an electronic map 330 such as Google Maps or other electronic maps through the mobile device 20 and a dedicated App to obtain the coordinates of a specific parking location. For example, the user can input the address or The coordinates of the specific parking position are obtained by clicking the position on the electronic map via the cursor, and then the obtained coordinates of the specific parking position are returned to the in-vehicle Bluetooth device 10. At the same time, the display and operation of some setting pages can also be achieved through the mobile device 20 and a dedicated App.

The aforementioned car Bluetooth device 10 and the mobile device 20 must first be paired to generate a set of Bluetooth passwords, which are stored in the mobile device 20 and the aforementioned car Bluetooth device 10 respectively, and then the car Bluetooth device 10 and the mobile device 20 can be within a Bluetooth signal strength. Automatically connect wirelessly via Bluetooth. The above-mentioned Bluetooth pairing process can be described as follows: Turn on the car Bluetooth device 10 and the mobile device 20, let the Bluetooth system on the mobile device 20 search for the car Bluetooth device 10 in the car, and after the search is found, the user chooses to connect. The car Bluetooth device 10 will send out a set of Bluetooth passwords. After the mobile device 20 receives the Bluetooth password, the user can input the Bluetooth password into the mobile device 20, thus completing the Bluetooth pairing, and the car Bluetooth device 10 will also An input screen is provided, and the user is required to input the name of the mobile device 20 for later selection of pairing. After pairing, as long as the in-vehicle Bluetooth device 10 and the mobile device 20 are within the Bluetooth signal strength, the two parties will automatically connect and interact through the above-mentioned dedicated App.

The above-mentioned in-vehicle Bluetooth device 10 has a setting page 100 as shown in FIG. 2. The setting page 100 is displayed through the display function of the Bluetooth paired mobile device 20 for users in the car 1 to view. The setting page 100 contains multiple options. Such as: add pairing 110, paired device list 120, save connection record 130, connection record 140, custom iKE working range setting 150, etc. The user can select the options provided on the setting page 100 or The options provided on the setting page 100 are selected through the dedicated App of the mobile device 20 that has been paired with Bluetooth.

The above option of adding a pairing 110 refers to adding a Bluetooth paired mobile device 20, and after completing the Bluetooth pairing process of the car Bluetooth device 10 and the mobile device 20 as described above, the car Bluetooth device 10 will ask the user to input the mobile device The name of the mobile device 20 is used as an index to store the pairing-related information in the car Bluetooth device 10, and the pairing can be selected by the name.

The above option of the paired device list 120 allows the user to select any of all the paired mobile devices 20 currently stored for subsequent selection, setting and operation. As shown in Figure 2, "Dean U Ultra" is The name of a mobile device 20 that has been Bluetooth paired is selected from the paired device list 120, and "2019-03-30 17:05" is the time when the Bluetooth pairing is completed.

The above option of saving connection log 130 is used to set whether to save the Bluetooth connection log. The above option of connection log 140 is used to query the stored Bluetooth connection log, so it can be used to confirm whether there is abnormal Bluetooth connection.

The option of customizing the iKE working range 150 is used to set a specific parking position of the car 1 and to set the strength of the Bluetooth signal sent by the car Bluetooth device 10 when the car 1 is at the set specific parking position. Regarding the options for customizing the iKE working range 150, the present invention proposes the following three basic scenarios for the user's reference when setting.

1. In-home garage mode: When the user selects this mode, the Bluetooth signal strength is set to "off", and the car Bluetooth device 10 does not transmit a signal. Since the noise in the home is not large, it is less likely to be misjudged. That is, when the car owner is parking in his garage, set the Bluetooth signal strength to "off", which can prevent the car Bluetooth device 10 on the car from continuously detecting the owner's mobile device 20 and automatically unlocking the door or repeatedly asking the owner for actions Whether the device requires the door to be unlocked; but at this time, the owner cannot use Bluetooth to unlock but must use other methods to unlock.

2. Home parking mode: When the user selects this mode, the Bluetooth signal strength is set to "weak", the Bluetooth signal strength sent by the car Bluetooth device 10 is weak, and the car Bluetooth device 10 requires that the received signal is from the mobile device 20 The Bluetooth signal strength of at least "weak" is sufficient. At this time, the strength of the Bluetooth signal received by the car Bluetooth device 10 from the mobile device 20 only needs to be greater than or equal to the set Bluetooth signal strength "weak". The device 10 will think that it has received the Bluetooth signal from the mobile device 20. This is because the general noise in the home is not large and it is less likely to be misjudged, so this is the setting. That is, when the owner of the car parks next to the home, the Bluetooth signal strength is set to "weak", so that the distance covered by the Bluetooth signal strength transmitted by the car Bluetooth device 10 is shorter, and the mobile device 20 of the car owner is closer to the car 1. The bluetooth device 10 on the car will automatically unlock the door, so that when the owner is at home, it can also prevent the bluetooth device on the car from continuously detecting the owner’s mobile device and automatically unlocking the door and repeatedly asking the owner whether the mobile device wants The door is unlocked.

3. Building basement mode: When the user selects this mode, the Bluetooth signal strength is set to "Strong", the Bluetooth signal strength sent by the car Bluetooth device 10 is strong, and the car Bluetooth device 10 requires that the mobile device 20 receives The Bluetooth signal strength must be at least "strong" to avoid misjudgment caused by noise interference. That is, when the car owner parks in the basement of the building, the Bluetooth signal strength is set to "strong", so that the Bluetooth signal transmitted by the car Bluetooth device 10 covers a longer distance. When the mobile device of the car owner is still some distance away from the car 1 , The Bluetooth device on the car will automatically unlock the door, so that the owner can open the door and enter the car without manually unlocking, and the Bluetooth signal strength received from the mobile device 20 is at least "strong" due to the requirement of the car Bluetooth device 10, At this time, the Bluetooth signal received from the mobile device 20 by the car Bluetooth device 10 must be greater than or equal to the set Bluetooth signal strength "strong", otherwise the car Bluetooth device 10 will think that it has not received the signal from the mobile device 20. Bluetooth signal, so you can avoid the misoperation of the door unlocking caused by the noise interference in the basement of the building.

The car Bluetooth device 10 further has a setting page 200 as shown in FIG. 3. The setting page 200 is related to the detailed settings of the custom iKE working range 150. The setting page 200 is displayed through the display function of the Bluetooth paired mobile device 20 for Viewed by the user in the car 1, the setting page 200 contains multiple options such as: specific parking position 210, Bluetooth iKE distance 220, Bluetooth signal strength 230, working range 240, etc. The user can select the setting page 200 by pressing keys or touching. The options provided or the dedicated App of the mobile device 20 that has been paired with Bluetooth are used to select the options provided on the setting page 200.

The option of the above-mentioned specific parking position 210 refers to setting the coordinates and code of a specific parking position, for example, the above code is set to "Taichung". The aforementioned Bluetooth iKE distance 220 option means that within the set Bluetooth iKE distance, the car Bluetooth device 10 can communicate with the mobile device 20 to unlock, for example, set the aforementioned Bluetooth iKE distance 220 to "near". The aforementioned option of Bluetooth signal strength 230 refers to setting the minimum strength of the Bluetooth signal received by the car Bluetooth device 10 from the mobile device 20 to adapt to different noise interference strength environments. For example, set the aforementioned Bluetooth signal strength 230 to Is "Medium", at this time the Bluetooth signal received by the car Bluetooth device 10 from the mobile device 20 must be greater than or equal to the set Bluetooth signal strength "Medium", otherwise the car Bluetooth device 10 will think that it has not received Bluetooth signal from the mobile device 20.

Referring to FIGS. 3 and 4, the option of the above-mentioned working range 240 refers to whether the distance between the set specific parking position 210 and the current position of the car 1 is within the above-mentioned working range 240, for example, within 50 meters. If the car 1 is currently judged to be out of the above-mentioned working range 240, the car Bluetooth device 10 will not use the settings in the custom iKE working range 150 for the specific parking position. On the contrary, if the car 1 is currently judged to be in the above-mentioned working range When within 240, the car Bluetooth device 10 will use the custom iKE working range 150 setting for the specific parking position. The distance between the specific parking position and the current position of the car 1 is calculated by comparing the previously set position coordinates of the specific parking position with the current position coordinates of the car 1 provided by the vehicle-mounted global satellite positioning system device 30.

The car Bluetooth device 10 has a setting page 300 as shown in FIG. 4. The setting page 300 is about setting the coordinates of a specific parking position and its code. It contains multiple options such as name 310, radius 320, etc. The user can press keys or touch Select the options provided on the setting page 300 in the manner of. The option of the aforementioned name 310 refers to setting the aforementioned name of a specific parking position; the aforementioned option of the radius 320 refers to setting the aforementioned working range 240. When setting the specific parking position of the car 1, the user can input the address via the aforementioned electronic map 330 or click the cursor to select the coordinate value of the specific parking position of the car 1, such as latitude and longitude.

In summary, the user selects a Bluetooth paired mobile device 20 in the paired device list 120, and then sets one or more specific parking locations 210 and their corresponding appropriate ones through the options of customizing the iKE working range 150 After the Bluetooth iKE distance 220, the Bluetooth signal strength 230, and the working range 240 parameters, the car Bluetooth device 10 will automatically select different Bluetooth iKE distances at different specific parking locations, so that the user can conveniently apply the present invention without the key The various advantages of unlocking the door, while avoiding the aforementioned problems encountered by the current product when unlocking the keyless door.

The above are only the preferred embodiments of the present invention, and do not limit the present invention in any form. Although the present invention has been disclosed in the preferred embodiments as above, it is not intended to limit the present invention. Anyone familiar with the professional technology Personnel, without departing from the scope of the technical solution of the present invention, when the technical content disclosed above can be used to make slight changes or modification into equivalent embodiments with equivalent changes, but any content that does not depart from the technical solution of the present invention, according to the present invention The technical essence of any simple modification, equivalent change and modification made to the above embodiments still fall within the scope of the technical solution of the present invention.

1 Automobiles Car Bluetooth devices 20 Mobile devices 30 Global Positioning System devices 40 Car lock switch controller 100, 200, 300 Setting page 110 New pairing 120 Pairing device list 130 Save connection record 140 Connection record 150 Custom iKE work scope setting 210 Specific parking location 220 Bluetooth iKE distance 230 Bluetooth signal strength 240 Working range 310 Name 320 Radius 330 Electronic map d Distance

Figure 1 is a block diagram of a preferred embodiment of the present invention. Figure 2 is a schematic diagram of the setting page of the preferred embodiment of the present invention. 3 is a schematic diagram of a setting page for customizing the working range of iKE according to a preferred embodiment of the present invention. Fig. 4 is a schematic diagram of a setting page for setting a specific parking position and working range in a preferred embodiment of the present invention.

1 Automotive 10 Bluetooth devices 20 Mobile devices 30 Global Positioning System Devices 40 Car lock switch controller d Distance

Claims (8)

A method for adjusting the sensing distance of a mobile device and a car Bluetooth device in a customized area includes the following steps: a Bluetooth device is provided, which is electrically connected to a device having a global satellite positioning system, wherein the Bluetooth device and the GPS device are installed in In a car; provide a car lock switch controller, which is electrically connected to the Bluetooth device, wherein the car lock switch controller is installed in the car; provide a mobile device, which is paired with the Bluetooth device, can be Within a set Bluetooth signal strength, it automatically connects to the Bluetooth device via a dedicated application software on the mobile device, so as to control the Bluetooth device to unlock a door of the car; the mobile device provides an electronic map, To set the coordinates of a specific parking position of the car, and set the corresponding Bluetooth signal strength for the specific parking position; generate a current position coordinate through the global satellite positioning system device; determine the current position coordinate and the specific parking Whether a relative distance of the position coordinate is within a set working range; if the relative distance between the current position coordinate and the above-mentioned specific parking position coordinate is within the set working range, the Bluetooth device adopts the above-mentioned specific parking position The Bluetooth signal strength set. The method according to claim 1, further comprising the following steps: setting a minimum strength of the Bluetooth signal received by the Bluetooth device from the mobile device. The method according to claim 1, further comprising the following steps: setting the Bluetooth signal strength to "off" so that the Bluetooth device does not transmit a signal. The method described in claim 1 further includes the following steps: Set the Bluetooth signal strength to "weak" to make the Bluetooth device transmit a shorter signal coverage distance, or set the Bluetooth signal strength to "strong" to make the Bluetooth device transmit a longer signal coverage distance. The method described in claim 1 further includes the following steps: setting multiple sets of the specific parking location and the corresponding Bluetooth signal strength of each specific parking location, and storing each set of specific parking locations and their settings in the Bluetooth device. The method according to claim 1, wherein: the pairing of the Bluetooth device and the mobile device further comprises the following steps: turn on the Bluetooth device and the mobile device, let the mobile device search for the Bluetooth device in the car, and wait for it to be found After that, the mobile device chooses to connect, and after the Bluetooth device transmits a Bluetooth password and the mobile device receives the Bluetooth password, the Bluetooth password is input into the mobile device. The method according to claim 1, wherein: after the pairing of the Bluetooth device and the mobile device is successful, the method further includes the following steps: providing an input screen for inputting the name of the mobile device, and indexing the name of the mobile device To store the pairing related information of the Bluetooth device and the mobile device in the Bluetooth device. The method according to claim 1, further comprising the following steps: providing the mobile device with a touch input interface and display function, which displays multiple setting pages of the Bluetooth device through the dedicated application software.

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