Distance sensing adjusting method of vehicle wireless control module

CN121151802APending Publication Date: 2025-12-16IVTES LTD
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Patent Information

Application Number
CN202511605012.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-05
Publication Date
2025-12-16

AI Technical Summary

Technical Problem

Different materials and grades of automotive window tinting film have varying shielding effects on wireless car key signals, affecting the unlocking and locking distances of the wireless car key and resulting in a poor user experience.

Method used

By adjusting the transmission power and retransmission count of the vehicle wireless control module, and by adopting low-shield mode and high-shield mode, the wireless connection distance is optimized to ensure a normal connection between the wireless vehicle key and the wireless transceiver module.

Benefits of technology

The wireless vehicle key was successfully operated in different heat-insulating paper environments, ensuring that communication parameters were adjusted and that the wireless vehicle key could operate normally within 15 meters in low shielding mode and within 3 meters in high shielding mode.

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Abstract

The invention provides a distance sensing adjusting method of a vehicle wireless control module, which can determine a low shielding mode distance and a high shielding mode distance, and then move the vehicle wireless control module to a position conforming to the low / high shielding mode distance according to the notification of the vehicle wireless control module. Then, the vehicle wireless control module executes the process of adjusting the communication parameters of the vehicle wireless control module, and after the adjustment of the communication parameters of the vehicle wireless control module is completed, the vehicle wireless control module is moved to the position conforming to the low / high shielding mode distance, and the vehicle wireless control module is started to be in the low / high shielding mode distance. Therefore, the vehicle wireless control module can be smoothly operated to unlock / lock / open the rear carriage and the like, the influence of different pieces of heat insulation paper used by the vehicle on the vehicle wireless control module can be overcome, and the purpose of the invention is achieved.
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Description

Technical Field

[0001] This invention relates to a digital vehicle key adjustment technology, and more particularly to a distance sensing adjustment method for a vehicle wireless control module. Background Technology

[0002] In actual use, vehicles often have different materials and grades of automotive heat insulation film installed due to the owner's personal needs or aesthetic considerations. Because of the varying physical properties and metal content of automotive heat insulation films, differences in the penetration rate of electromagnetic waves or wireless signals can occur. This can lead to varying degrees of signal shielding for the vehicle's wireless key, directly affecting the wireless connection distance when opening or closing the vehicle, resulting in differences in user experience due to excessively short or long unlocking distances. Therefore, how to adjust the wireless key settings to overcome the impact of different heat insulation films on the wireless key is a problem that needs to be solved in this field. Summary of the Invention

[0003] In view of the aforementioned problem that existing automotive heat shielding films cause varying degrees of signal shielding to the vehicle's wireless control module, this invention provides a distance sensing adjustment method for a vehicle wireless control module having two adjustable communication parameters: a transmission power and a number of retransmissions. The vehicle wireless control module performs the following steps:

[0004] The application notifies the user, either by displaying text or by voice, to move the vehicle wireless control module to a low-shield mode distance from the wireless transceiver module.

[0005] Confirm that the vehicle wireless control module and the wireless transceiver module are properly connected.

[0006] When the vehicle wireless control module and the wireless transceiver module are not properly connected, check whether the transmission power of the vehicle wireless control module is at its highest level.

[0007] When the vehicle wireless control module and the wireless transceiver module are connected normally, the vehicle wireless control module is set to a low shielding mode, and the process ends.

[0008] When the transmission power of the vehicle wireless control module is not at its highest level, increase the transmission power of the vehicle wireless control module by one level, and then confirm whether the vehicle wireless control module and the wireless transceiver module are properly connected.

[0009] When the transmission power of the vehicle wireless control module is at its highest level, the user is notified by text display or voice to move the vehicle wireless control module to a high shielding mode distance from the wireless transceiver module.

[0010] Confirm that the vehicle wireless control module and the wireless transceiver module are properly connected.

[0011] When the vehicle wireless control module and the wireless transceiver module are not properly connected, check whether the number of times the vehicle wireless control module sends a single transmission is the highest level.

[0012] When the vehicle wireless control module and the wireless transceiver module are connected normally, the vehicle wireless control module is set to a high shielding mode, and the process ends.

[0013] When the number of retransmissions of the vehicle wireless control module is not the highest level, increase the number of retransmissions of the vehicle wireless control module by one level, and then confirm whether the vehicle wireless control module and the wireless transceiver module are properly connected.

[0014] When the number of times the vehicle wireless control module sends a single transmission is at the highest level, a notification is sent indicating that the vehicle wireless control module cannot be adjusted, and the process ends.

[0015] Furthermore, the present invention provides another distance sensing adjustment method for a vehicle wireless control module with adjustable communication parameters having only the aforementioned transmission power, wherein the vehicle wireless control module performs the following steps:

[0016] The user is notified via text display or voice to move the vehicle wireless control module to a low-shield mode distance from the wireless transceiver module;

[0017] Confirm that the vehicle wireless control module and the wireless transceiver module are properly connected.

[0018] When the vehicle wireless control module and the wireless transceiver module are not properly connected, check whether the transmission power of the vehicle wireless control module is at its highest level.

[0019] When the vehicle wireless control module and the wireless transceiver module are connected normally, the vehicle wireless control module is set to a low shielding mode, and the process ends.

[0020] When the transmission power of the vehicle wireless control module is not at its highest level, increase the transmission power of the vehicle wireless control module by one level, and then confirm whether the vehicle wireless control module and the wireless transceiver module are properly connected.

[0021] When the transmission power of the vehicle wireless control module is at its highest level, the user is notified by text display or voice to move the vehicle wireless control module to a high shielding mode distance from the wireless transceiver module.

[0022] When the vehicle wireless control module and the wireless transceiver module are normally connected, the vehicle wireless control module is set to use a high shielding mode.

[0023] When the vehicle wireless control module and the wireless transceiver module cannot connect normally, the user will be notified via text display or voice that the vehicle wireless control module cannot be adjusted, and the process will end.

[0024] This invention provides a distance sensing adjustment method for a vehicle wireless control module. The user can first determine the low-shield mode distance and the high-shield mode distance. Then, according to the notification from the vehicle wireless control module, the user moves the vehicle wireless control module to a position that meets the low-shield mode distance. The user then executes the communication parameter adjustment process described above using the vehicle wireless control module. If the vehicle wireless control module is set to use the low-shield mode, the communication parameter adjustment is complete. Afterwards, simply moving the vehicle wireless control module to a position that meets the low-shield mode distance allows for smooth unlocking / locking / unlocking operations using the vehicle wireless control module. Actions such as opening the trunk; if the vehicle wireless control module is set to high shielding mode, the communication parameters of the vehicle wireless control module are also adjusted. After that, as long as the vehicle wireless control module is moved to a position that meets the high shielding mode distance, the vehicle wireless control module can be used to perform actions such as unlocking / locking / opening the trunk. When the vehicle wireless control module notifies the user that it cannot be adjusted via text display or voice, the user can reselect a smaller low shielding mode distance and a smaller high shielding mode distance, repeating the above process until a feasible high shielding mode distance or low shielding mode distance is found, thus achieving the purpose of the present invention. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of an initial scenario for the distance sensing adjustment method of the vehicle wireless control module of the present invention.

[0026] Figure 2 This is a schematic diagram of an implementation scenario of the distance sensing adjustment method of the vehicle wireless control module of the present invention.

[0027] Figure 3 This is a flowchart of an embodiment of the distance sensing adjustment method of the vehicle wireless control module of the present invention.

[0028] Figure 4 This is a flowchart of another embodiment of the distance sensing adjustment method of the vehicle wireless control module of the present invention. Detailed Implementation

[0029] Please see Figure 1 and Figure 2 As shown, Figure 1 The image shows a car 60, which has a windshield 61 and multiple windows 62. The car 60 also has a wireless transceiver module 20 installed inside. This module, after initial setup, can establish a wireless connection with a vehicle wireless control module 10 located outside the vehicle. The vehicle wireless control module 10 functions similarly to a car key fob or a mobile device (such as a mobile phone) with the same functions. Thus, a user can operate the vehicle wireless control module 10 to perform actions such as unlocking / locking doors, turning on lights, or opening the trunk (not shown) within an initial distance Ri from the car 60. In one embodiment, the wireless connection may be Bluetooth. @ Wireless technologies such as NFC, UWB, etc.

[0030] Figure 2 The vehicle 60 has automotive heat-insulating film 63 attached to multiple surfaces of the windshield 61 and the plurality of windows 62 to block sunlight, prevent peeping, or enhance aesthetics. Because the automotive heat-insulating film 63 hinders the penetration of electromagnetic waves, when a user operates the vehicle wireless control module 10 at the initial distance Ri from the vehicle 60, they cannot properly connect wirelessly to the wireless transceiver module 20. In this case, the user must move the vehicle wireless control module 10 closer to the vehicle 60's wireless transceiver module 20 or adjust at least one communication parameter of the vehicle wireless control module 10 to attempt to restore the normal wireless connection between the vehicle wireless control module 10 and the wireless transceiver module 20. To address this, the present invention proposes a low-shield adjustment mode and a high-shield adjustment mode to adjust the vehicle wireless control module 10 respectively, aiming to overcome the obstruction of electromagnetic waves by the automotive heat-insulating film 63 and restore the wireless connection between the vehicle wireless control module 10 and the wireless transceiver module 20.

[0031] In one embodiment, the vehicle wireless control module 10 has at least two adjustable communication parameters, namely a transmission power and a number of retransmissions. The transmission power can be divided into first to Nth orders from smallest to largest, with the first order having the minimum transmission power and the Nth order having the maximum transmission power. Similarly, the number of retransmissions can be divided into first to Mth orders from smallest to largest, with the first order having the minimum number of retransmissions and the Mth order having the maximum number of retransmissions, where M and N are both integers greater than or equal to 2. The transmit power refers to the power of the antenna transmitting the signal. The greater the transmit signal power of the transmitting antenna, the easier it is for the receiving end to correctly receive the wireless signal transmitted by the transmitting end. The retransmission count refers to the number of times data is retransmitted. Under the circumstances allowed by the communication protocol, the more times the same data is retransmitted, the higher the success rate of data reception between the vehicle wireless control module 10 and the wireless transceiver module 20. For example, Bluetooth 5.0's LECODED PHY (Long Range Coding Physical Layer) uses forward error correction coding (FEC), which can extend the transmission range without increasing power consumption. Forward error correction coding can repeat data packets twice (called S2 coding scheme) and eight times (called S8 coding scheme). When M is 1, it means that the transmit power cannot be adjusted; when N is 1, it means that the retransmission count cannot be adjusted.

[0032] As stated above, please refer to Figure 3 , Figure 3 This is an embodiment of the communication parameter process for adjusting the transmission power and retransmission count of the vehicle wireless control module 10 according to the present invention. In this embodiment, the vehicle wireless control module 10 performs the following steps:

[0033] Step S1: The application notifies the user, either by text display or voice, to move the vehicle wireless control module 10 to a low-shield mode distance from the wireless transceiver module 20;

[0034] Step S2: Confirm whether the vehicle wireless control module 10 and the wireless transceiver module 20 are properly connected;

[0035] Step S3: When the vehicle wireless control module 10 and the wireless transceiver module 20 are not properly connected, confirm whether the transmission power of the vehicle wireless control module 10 is the highest level (i.e., the highest transmission power).

[0036] Step S4: When the vehicle wireless control module 10 and the wireless transceiver module 20 are normally connected, setting the vehicle wireless control module 10 to adopt a low-shield mode includes: setting the vehicle wireless control module 10 according to the current order of the transmission power and the current order of the retransmission count, recording the current low-shield mode distance, and ending the process.

[0037] Step S5: When the transmission power of the vehicle wireless control module 10 is not at its highest level, increase the transmission power of the vehicle wireless control module 10 by one level, and then confirm whether the vehicle wireless control module 10 and the wireless transceiver module 20 are properly connected (S2).

[0038] Step S6: When the transmission power of the vehicle wireless control module 10 is at its highest level, the vehicle wireless control module 10 notifies the user, either by text display or voice, to move the vehicle wireless control module 10 to a high shielding mode distance from the wireless transceiver module 20, wherein the high shielding mode distance is less than the low shielding mode distance.

[0039] Step S7: Confirm whether the vehicle wireless control module 10 and the wireless transceiver module 20 are properly connected;

[0040] Step S8: When the vehicle wireless control module 10 and the wireless transceiver module 20 are not properly connected, confirm whether the number of retransmissions of the vehicle wireless control module 10 is the highest level (i.e., the maximum number of retransmissions).

[0041] Step S9: When the vehicle wireless control module 10 and the wireless transceiver module 20 are normally connected, set the vehicle wireless control module 10 to adopt a high shielding mode, which includes: setting the vehicle wireless control module 10 according to the current order of the transmission power and the current order of the retransmission count, and recording the current high shielding mode distance; end the process.

[0042] Step S10: When the number of retransmissions of the vehicle wireless control module 10 is not the highest level, increase the number of retransmissions of the vehicle wireless control module 10 by one level, and then confirm whether the vehicle wireless control module 10 and the wireless transceiver module 20 are properly connected (S7).

[0043] Step S11: When the number of times the vehicle wireless control module 10 sends data is the highest level, notify that the vehicle wireless control module 10 cannot be adjusted and end the process.

[0044] As stated above, please refer to Figure 4 , Figure 4 This is another embodiment of the communication parameter process for adjusting the transmission power of the vehicle wireless control module 10 according to the present invention. This embodiment is similar to... Figure 3 The only difference in this embodiment is that, in this embodiment, only the transmission power of the vehicle wireless control module 10 is adjustable. In this embodiment, the vehicle wireless control module 10 performs the following steps:

[0045] Step S1: The vehicle wireless control module 10 notifies the user, via text display or voice, to move the vehicle wireless control module 10 to a low-shield mode distance from the wireless transceiver module 20;

[0046] Step S2: Confirm whether the vehicle wireless control module 10 and the wireless transceiver module 20 are properly connected;

[0047] Step S3: When the vehicle wireless control module 10 and the wireless transceiver module 20 are not properly connected, confirm whether the transmission power of the vehicle wireless control module 10 is the highest level (i.e., the highest transmission power).

[0048] Step S4': When the vehicle wireless control module 10 and the wireless transceiver module 20 are normally connected, the vehicle wireless control module 10 is set to a low-shield mode, which includes: setting the vehicle wireless control module 10 according to the current order of the transmission power, recording the current low-shield mode distance, and ending the process.

[0049] Step S5: When the transmission power of the vehicle wireless control module 10 is not at its highest level, increase the transmission power of the vehicle wireless control module 10 by one level, and then confirm whether the vehicle wireless control module 10 and the wireless transceiver module 20 are properly connected (S2).

[0050] Step S6: When the transmission power of the vehicle wireless control module 10 is at its highest level, the vehicle wireless control module 10 notifies the user, either by text display or voice, to move the vehicle wireless control module 10 to a high shielding mode distance from the wireless transceiver module 20, wherein the high shielding mode distance is less than the low shielding mode distance.

[0051] Step S7: Confirm whether the vehicle wireless control module 10 and the wireless transceiver module 20 are properly connected;

[0052] Step S9': When the vehicle wireless control module 10 and the wireless transceiver module 20 are normally connected, set the vehicle wireless control module 10 to adopt a high shielding mode, which includes: setting the vehicle wireless control module 10 according to the current order of the transmission power, and recording the current high shielding mode distance; end the process.

[0053] Step S12: When the vehicle wireless control module 10 and the wireless transceiver module 20 cannot connect normally, notify that the vehicle wireless control module 10 cannot be adjusted and end the process.

[0054] In summary, the user can first determine the low-shield mode distance and the high-shield mode distance. Then, according to the notification from the vehicle wireless control module 10 via text display or voice, the user moves the vehicle wireless control module 10 to a position that matches the low-shield mode distance. Then, the vehicle wireless control module 10 executes the communication parameter process described above for adjusting the transmission power of the vehicle wireless control module 10 (e.g., ...). Figure 4 (as shown), or the communication parameter flow of transmit power and retransmission count (e.g.) Figure 3 As shown, if the vehicle wireless control module 10 is set to low-shield mode, the communication parameter adjustment of the vehicle wireless control module 10 is completed. Afterwards, simply moving the vehicle wireless control module 10 to a position that meets the distance requirements of the low-shield mode, such as within 15 meters of the car 60, will allow successful operation of the car 60 via the vehicle wireless control module 10 to perform actions such as unlocking / locking / opening the trunk. Similarly, if the vehicle wireless control module 10 is set to high-shield mode, the communication parameter adjustment of the vehicle wireless control module 10 is also completed. Afterwards, simply moving the vehicle wireless control module 10 to a position that meets the distance requirements of the low-shield mode, such as within 15 meters of the car 60, will allow successful operation of the car 60 via the vehicle wireless control module 10 to perform actions such as unlocking / locking / opening the trunk. Move the device to a position that meets the high shielding mode distance, for example, within 3 meters of the vehicle 60, so that the vehicle wireless control module 10 can smoothly operate the vehicle 60 to perform actions such as unlocking / locking / opening the trunk; when the vehicle wireless control module 10 notifies the user that it cannot be adjusted by displaying text or voice, the user can reselect a smaller low shielding mode distance and a smaller high shielding mode distance, repeating the above process until a feasible high shielding mode distance or low shielding mode distance is found, thus achieving the purpose of the present invention.

[0055] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the technical solution of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A distance sensing adjustment method for a vehicle wireless control module, characterized in that, A vehicle wireless control module performs the following steps: The user is notified via text display or voice to move the vehicle wireless control module to a low-shield mode distance from a wireless transceiver module. Confirm that the vehicle wireless control module and the wireless transceiver module are properly connected. When the vehicle wireless control module and the wireless transceiver module are not properly connected, check whether the transmission power of the vehicle wireless control module is at its highest level. When the vehicle wireless control module and the wireless transceiver module are connected normally, the vehicle wireless control module is set to a low shielding mode, and the process ends. When the transmission power of the vehicle wireless control module is not at its highest level, increase the transmission power of the vehicle wireless control module by one level, and then confirm whether the vehicle wireless control module and the wireless transceiver module are properly connected.

2. The method as described in claim 1, characterized in that, The vehicle wireless control module also performs the following steps: When the transmission power of the vehicle wireless control module is at its highest level, the user is notified by text display or voice to move the vehicle wireless control module to a high shielding mode distance from the wireless transceiver module. Confirm that the vehicle wireless control module and the wireless transceiver module are properly connected. When the vehicle wireless control module and the wireless transceiver module are not properly connected, check whether the number of times the vehicle wireless control module sends a single transmission is the highest level. When the vehicle wireless control module and the wireless transceiver module are connected normally, the vehicle wireless control module is set to a high shielding mode, and the process ends. When the number of retransmissions of the vehicle wireless control module is not the highest level, increase the number of retransmissions of the vehicle wireless control module by one level, and then confirm whether the vehicle wireless control module and the wireless transceiver module are properly connected. When the number of times the vehicle wireless control module sends a single transmission is at the highest level, a notification is sent indicating that the vehicle wireless control module cannot be adjusted, and the process ends.

3. The method as described in claim 1, characterized in that, Setting the vehicle wireless control module to use the low-shield mode includes: setting the vehicle wireless control module according to the current order of the transmission power and the current order of the first transmission count, and recording the current low-shield mode distance.

4. The method as described in claim 2, characterized in that, Setting the vehicle wireless control module to use the high-shield mode includes: setting the vehicle wireless control module according to the current order of the transmission power and the current order of the retransmission count, and recording the current high-shield mode distance.

5. The method as described in claim 1, characterized in that, The vehicle wireless control module also performs the following steps: Setting the vehicle wireless control module to use the low-shield mode includes: setting the vehicle wireless control module according to the current order of the transmission power, and recording the current low-shield mode distance.

6. The method as described in claim 1, characterized in that, The vehicle wireless control module also performs the following steps: When the transmission power of the vehicle wireless control module is at its highest level, the user is notified by text display or voice to move the vehicle wireless control module to a high shielding mode distance from the wireless transceiver module. When the vehicle wireless control module and the wireless transceiver module are normally connected, the vehicle wireless control module is set to use a high shielding mode. When the vehicle wireless control module and the wireless transceiver module cannot connect normally, the user will be notified via text display or voice that the vehicle wireless control module cannot be adjusted, and the process will end.

7. The method as described in claim 6, characterized in that, Setting the vehicle wireless control module to use the high-shield mode includes: setting the vehicle wireless control module according to the current order of the transmission power, and recording the current high-shield mode distance.