Methods, systems, and storage media for adjusting the radio frequency parameters of the vehicle-mounted unit

Abstract

This application discloses a method, system, and storage medium for adjusting the radio frequency parameters of an on-board unit. The method includes: receiving short-range data transmitted by a target on-board unit at at least one transmission level, wherein the target on-board unit is disposed inside the windshield of a target vehicle, and the short-range data corresponding to each of the at least one transmission level is transmitted through the windshield of the target vehicle; if, in the at least one transmission level, there exists a transmission level where the signal strength value of the corresponding short-range data is greater than or equal to a preset strength value, selecting a target transmission level from the at least one transmission level, wherein the target transmission level is the transmission level where the difference between the signal strength value of the corresponding short-range data and the preset strength value is the smallest; and sending first indication information to the target on-board unit, wherein the first indication information is used to instruct the transmission level of the target on-board unit to be set to the target transmission level.

Description

Technical Field

[0001] This application relates to the field of automotive wireless communication, and more specifically, to a method, system, and storage medium for adjusting the radio frequency parameters of an on-board unit. Background Technology

[0002] Currently, ETC (Electronic Toll Collection) can be used to charge vehicles on highways or other similar areas. ETC consists of RSU (Road Side Unit) and OBU (On Board Unit). Through two-way communication and data exchange between the two, vehicle toll collection can be completed without requiring vehicles to stop, thus improving traffic efficiency. During two-way communication between the RSU and OBU, data exchange is typically completed using preset radio frequency parameters.

[0003] Because different automotive glass materials vary, some car windows or window tints may absorb microwaves, causing communication failures between the RSU and OBU, and consequently preventing vehicles from passing through ETC lanes. Therefore, the methods for adjusting the radio frequency parameters of the on-board unit in related technologies suffer from low data transmission success rates due to the susceptibility of microwave absorption. Summary of the Invention

[0004] This application provides a method, system, and storage medium for adjusting the radio frequency parameters of an on-board unit, in order to at least solve the problem that the method for adjusting the radio frequency parameters of an on-board unit in the related art is prone to misjudgment of collision warnings when judging the vehicle position based on latitude and longitude information.

[0005] According to one aspect of the embodiments of this application, a method for adjusting the radio frequency parameters of a vehicle-mounted unit is provided, comprising: receiving short-range data transmitted by a target vehicle-mounted unit at at least one transmission level, wherein the target vehicle-mounted unit is disposed on the inside of the windshield of a target vehicle, and the short-range data corresponding to each of the at least one transmission level is transmitted through the windshield of the target vehicle; if, among the at least one transmission level, there exists a transmission level where the signal strength value of the corresponding short-range data is greater than or equal to a preset strength value, selecting a target transmission level from the at least one transmission level, wherein the target transmission level is the transmission level among the at least one transmission levels where the difference between the signal strength value of the corresponding short-range data and the preset strength value is the smallest; and sending first indication information to the target vehicle-mounted unit, wherein the first indication information is used to indicate that the transmission level of the target vehicle-mounted unit be set to the target transmission level.

[0006] According to another aspect of the embodiments of this application, a system for adjusting the radio frequency parameters of an on-board unit is also provided, comprising: a target on-board unit disposed on the inner side of the glass of a target vehicle; a data processing unit disposed on the outer side of the glass of the target vehicle, configured to receive short-range data transmitted by the target on-board unit at at least one transmission level, wherein the short-range data corresponding to each of the at least one transmission level is transmitted through the glass of the target vehicle; if, in the at least one transmission level, there exists a transmission level where the signal strength value of the corresponding short-range data is greater than or equal to a preset strength value, a target transmission level is selected from the at least one transmission level, wherein the target transmission level is the transmission level where the difference between the signal strength value of the corresponding short-range data and the preset strength value is the smallest; and a first indication information is sent to the target on-board unit, wherein the first indication information is used to indicate that the transmission level of the target on-board unit be set to the target transmission level.

[0007] According to another aspect of the embodiments of this application, a computer-readable storage medium is also provided, wherein a computer program is stored in the computer program, and the computer program is configured to execute the method for adjusting the radio frequency parameters of the above-mentioned vehicle-mounted unit when it is run.

[0008] According to another aspect of the embodiments of this application, an electronic device is also provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the above-described method for adjusting the radio frequency parameters of the vehicle unit through the computer program.

[0009] In this embodiment, the transmission level of the vehicle-mounted unit is adjusted by calibrating a preset strength value of the short-range data transmitted by the vehicle-mounted unit. This is achieved by receiving short-range data transmitted by the target vehicle-mounted unit at at least one transmission level. The target vehicle-mounted unit is located inside the windshield of the target vehicle, and the short-range data corresponding to each of the at least one transmission level is transmitted through the windshield. If, among the at least one transmission level, there exists a transmission level with a corresponding short-range data signal strength value greater than or equal to a preset strength value, a target transmission level is selected from the at least one transmission level. The target transmission level is defined as the transmission level with the highest signal strength value for the corresponding short-range data among the at least one transmission levels. The transmission level with the smallest difference between the intensity value and the preset intensity value is selected; a first instruction message is sent to the target vehicle unit, wherein the first instruction message is used to instruct the transmission level of the target vehicle unit to be set to the target transmission level. Since the intensity value of the short-range data emitted by the vehicle unit after passing through the windshield is different under different transmission levels, the optimal transmission level of the vehicle unit is determined according to the preset intensity value and the signal intensity value corresponding to each transmission level. This can reduce the possibility of microwave absorption and improve the success rate of data transmission. This solves the problem of low data transmission success rate caused by easy absorption of microwaves in the adjustment method of radio frequency parameters of vehicle units in related technologies. Attached Figure Description

[0010] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0011] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the hardware environment for an optional method for adjusting the radio frequency parameters of an on-board unit according to an embodiment of this application.

[0013] Figure 2 This is a flowchart illustrating an optional method for adjusting the radio frequency parameters of an on-board unit according to an embodiment of this application.

[0014] Figure 3 This is a schematic diagram of an optional method for adjusting the radio frequency parameters of an on-board unit according to an embodiment of this application;

[0015] Figure 4This is a schematic diagram of another optional method for adjusting the radio frequency parameters of an on-board unit according to an embodiment of this application;

[0016] Figure 5 This is a schematic diagram of another optional method for adjusting the radio frequency parameters of an on-board unit according to an embodiment of this application;

[0017] Figure 6 This is a schematic diagram of another optional method for adjusting the radio frequency parameters of an on-board unit according to an embodiment of this application;

[0018] Figure 7 This is a schematic diagram of another optional method for adjusting the radio frequency parameters of an on-board unit according to an embodiment of this application;

[0019] Figure 8 This is a structural block diagram of an optional electronic device according to an embodiment of this application. Detailed Implementation

[0020] According to one aspect of the embodiments of this application, a method for adjusting the radio frequency parameters of an on-board unit is provided. Optionally, in this embodiment, the above-described method for adjusting the radio frequency parameters of an on-board unit can be applied to, for example... Figure 1 The hardware environment shown includes detection component 102 and server 104. For example... Figure 1 As shown, server 104 is connected to detection component 102 via a network. A database can be set up on the server or independently to provide data storage services for server 104. Detection component 102 may include an onboard unit and a detection module.

[0021] The aforementioned networks may include, but are not limited to, at least one of the following: wired network, wireless network. The aforementioned wired network may include, but is not limited to, at least one of the following: wide area network, metropolitan area network, local area network. The aforementioned wireless network may include, but is not limited to, at least one of the following: Wi-Fi (Wireless Fidelity), Bluetooth.

[0022] The method for adjusting the radio frequency parameters of the vehicle-mounted unit in this embodiment can be executed by the detection component 102, or it can be jointly executed by the server 104 and the detection component 102. Taking the method for adjusting the radio frequency parameters of the vehicle-mounted unit in this embodiment executed by the detection module in the detection component 102 as an example... Figure 2 This is a flowchart illustrating an optional method for adjusting the radio frequency parameters of an on-board unit according to an embodiment of this application, as shown below. Figure 2 As shown, the process of this method may include the following steps:

[0023] Step S202: Receive short-range data transmitted by the target vehicle unit in at least one transmission position, wherein the target vehicle unit is located inside the glass of the target vehicle, and the short-range data corresponding to each of the at least one transmission position is transmitted through the glass of the target vehicle.

[0024] The method for adjusting the radio frequency (RF) parameters of the on-board unit (OBU) in this embodiment can be applied to scenarios where the RF parameters of the OBU in an ETC system are adjusted. The aforementioned ETC system may include modules such as transaction process, toll calculation, vehicle queue management, vehicle information management, and vehicle-to-machine (V2M) interaction management. Through microwave communication between the roadside unit (RSU) installed at the toll station and the on-board unit (OBU) in the vehicle, it achieves verification of the toll payer's identity and automatic toll payment. The OBU can be an on-board electronic tag installed on the vehicle's windshield, serving as an electronic communication device between the vehicle and the roadside unit. The RF parameters of the OBU may include, but are not limited to, the transmit power, receive power, and wake-up sensitivity of the OBU. The RF parameters are adjusted by regulating the corresponding RF settings. Correspondingly, the RF settings may include the transmit setting, receive setting, and wake-up setting of the OBU.

[0025] In ETC systems, DSRC (Dedicated Short Range Communication) technology is typically used to facilitate data exchange between the on-board unit and the roadside unit. Based on the information obtained from this data exchange, computer networking technology is used to conduct back-end settlement with banks, thereby enabling vehicles to pay tolls without stopping when passing through toll stations.

[0026] However, due to differences in the materials of vehicle windows, some car windows or window tints may absorb microwaves, causing communication failures between the roadside unit and the on-board unit, thus preventing vehicles from passing through ETC lanes. Current technology typically involves manually adjusting the radio frequency (RF) setting of the on-board unit, followed by testing the microwaves emitted by the unit using relevant equipment. However, this method is highly dependent on manual labor. Another approach combines handheld devices to adjust the RF parameters of the on-board unit, using an adaptive parameter tuning system that automatically adjusts the RF setting. However, this system only uses DSRC communication, which is a short-range communication with weak penetration capabilities, resulting in limited practicality.

[0027] To at least address some of the aforementioned issues, in this embodiment, the RF level of the on-board unit (OBU) can be adaptively adjusted by analyzing the RSSI (Received Signal Strength Indicator) of the DSRC data transmitted through the glass using a detection module. Here, the detection module can be positioned opposite the OBU through the vehicle's windshield. The detection module may include an MCU (Microcontroller Unit), a Bluetooth module, a DSRC RF module, and a transceiver antenna unit. The DSRC RF module transmits DSRC data to and receives DSRC data from the OBU, and detects the RSSI value of the DSRC data transmitted by the OBU. When the OBU is attached to the windshield, the detection module and the OBU work together to automatically adjust the OBU's RF parameters to obtain a suitable set of RF parameters. Correspondingly, the OBU may include a Bluetooth module, a DSRC RF module, a transceiver antenna unit, an ESAM (Embedded Secure Access Module) encryption authentication unit, a power module, and an anti-tamper switch (all or part of it). Wireless communication between the detection module and the vehicle-mounted unit is achieved via a Bluetooth module. When the system is in RF parameter adaptive adjustment mode, the detection module and the vehicle-mounted unit can continuously communicate (including at least one of DSRC communication and Bluetooth communication) to continuously adjust the RF parameters of the vehicle-mounted unit until the received data meets the expected value. When the vehicle passes through the toll station, the onboard OBU communicates with the RSU of the toll gantry to obtain vehicle and toll information and deduct the corresponding highway toll from the electronic wallet. The Bluetooth module is used for the OBU activation process. The OBU has a tamper-evident switch (which can be a tamper-evident button) on the back; removing it will disable the OBU.

[0028] Once the Bluetooth connection between the detection module and the on-board unit is established, the detection function can be activated. Through the coordinated operation of the on-board unit and the detection module, the OBU's radio frequency parameters can be adaptively adjusted for different vehicle glass / film systems until suitable parameters are obtained, thereby increasing the success rate of vehicles passing through ETC lanes. Furthermore, because Bluetooth's communication frequency is 2.4GHz, it has stronger penetration capabilities compared to DSRC's 5.8GHz, covering more scenarios and offering greater practicality.

[0029] In this embodiment, the target vehicle-mounted unit may have at least one transmission position and may be located on the inside of the windshield (front windshield) of the target vehicle. The detection module may receive short-range data transmitted by the target vehicle-mounted unit according to at least one transmission position. The detection module may be installed on the outside of the windshield of the target vehicle and opposite to the target vehicle-mounted unit. The short-range data corresponding to each of the at least one transmission position may be transmitted through the windshield of the target vehicle. The target vehicle may be a vehicle for which the radio frequency parameters of the vehicle-mounted unit need to be adjusted. The short-range data may be the aforementioned DSRC data.

[0030] Optionally, after the detection module activates its detection function, it can send a command to the target vehicle unit to start transmitting short-range data, thereby triggering the target vehicle unit to transmit short-range data. When the detection module receives data transmitted by the target vehicle unit, its DSRC module can obtain a signal strength value (e.g., the aforementioned RSSI value) based on the data signal strength.

[0031] Here, the short-range data transmitted at different transmission levels can be transmitted sequentially, that is, the target vehicle unit can transmit short-range data separately according to each of at least one transmission level, or it can be transmitted based on interaction with the detection module, that is, the target vehicle unit first transmits short-range data according to one transmission level, and then, if the optimal transmission level of the target vehicle unit cannot be determined, the detection module instructs the target vehicle unit to retransmit short-range data according to a new transmission level, and so on, until the optimal transmission level of the target vehicle unit is determined.

[0032] Step S204: If, in at least one transmission position, there exists a transmission position where the signal strength value of the corresponding short-range data is greater than or equal to a preset strength value, a target transmission position is selected from the at least one transmission position. The target transmission position is the transmission position in the at least one transmission position where the difference between the signal strength value of the corresponding short-range data and the preset strength value is the smallest.

[0033] The detection module can pre-calibrate a signal strength threshold, i.e., a preset strength value, as a standard for selecting the target transmission level. Here, the preset strength value can be the average signal strength of short-range data transmitted by different vehicle units after passing through the vehicle glass, the average signal strength of short-range data transmitted by the same vehicle unit after passing through different vehicle glasses, or the average signal strength of short-range data transmitted by different vehicle units after passing through different vehicle glasses. This embodiment does not limit this.

[0034] The preset strength value can be calibrated in the following ways: such as Figure 3As shown, the vehicle-mounted unit is attached to the inner microwave area of ​​the vehicle glass, and the detection module is attached to the outer side of the same area of ​​the vehicle glass. The detection module records the signal strength value of the short-range data transmitted by the vehicle-mounted unit. This operation is performed on multiple different vehicle-mounted units to obtain multiple signal strength values, and the average of these multiple signal strength values ​​is used as the calibrated preset strength value. Alternatively, the above operation can be performed on multiple different vehicle glasses separately, and the average of the obtained multiple signal strength values ​​is used as the calibrated preset strength value.

[0035] For example, taking a preset strength value of V1 as an example, prepare 100 qualified vehicle-mounted units from different manufacturers, such as... Figure 3 As shown, the vehicle-mounted unit is attached to the inner microwave area of ​​the vehicle glass, and the detection module is attached to the outer side of the same area of ​​the vehicle glass. The DSRC radio frequency module on the vehicle-mounted unit is turned on to start transmitting data, and the DSRC radio frequency module on the detection module is also turned on. After the detection module receives the data transmitted by the vehicle-mounted unit, it obtains an RSSI value from the data and records the value. The RSSI values ​​of 100 vehicle-mounted units are tested sequentially. In addition, the above test can be performed on multiple common vehicles on the market to collect their short-range data RSSI values ​​after passing through the glass. Finally, the average value of these RSSI values ​​is taken to obtain V1, which is used as the standard RSSI value of the short-range data of the vehicle-mounted unit after passing through the glass and stored in the detection module.

[0036] Since the preset strength value is the average of multiple signal strength values, in this embodiment, if there is a transmission range at least one transmission range where the corresponding short-range data signal strength value is greater than or equal to the preset strength value, a target transmission range can be selected from the at least one transmission range. Here, the target transmission range can be the transmission range at least one transmission range where the difference between the corresponding short-range data signal strength value and the preset strength value is the smallest.

[0037] For example, the vehicle-mounted unit has 0-10 transmission levels. When the transmission level is 4, the RSSI value received by the detection module is 18 dBm, which is less than V1. However, when the transmission level is 5, the RSSI value received by the detection module is 23 dBm, which is greater than V1. The minimum value of |RSSI-V1| dBm can be selected as the corresponding transmission level of the vehicle-mounted unit. If |18-V1| < |23-V1|, then the transmission level of the vehicle-mounted unit is selected as 4.

[0038] Step S206: Send a first instruction message to the target vehicle unit, wherein the first instruction message is used to instruct the transmission mode of the target vehicle unit to be set to the target transmission mode.

[0039] In this embodiment, once the target transmission level is determined, the detection module can send first indication information to the target vehicle-mounted unit. Here, the first indication information can be used to instruct the target vehicle-mounted unit to set its transmission level to the target transmission level. The first indication information can be sent via a wireless communication module (e.g., a Bluetooth module).

[0040] Through steps S202 to S206, short-range data transmitted by the target vehicle unit at at least one transmission level is received. The target vehicle unit is located inside the windshield of the target vehicle, and the short-range data corresponding to each of the at least one transmission level is transmitted through the windshield. If, among the at least one transmission level, there exists a transmission level where the signal strength value of the corresponding short-range data is greater than or equal to a preset strength value, a target transmission level is selected from the at least one transmission level. The target transmission level is the transmission level where the difference between the signal strength value of the corresponding short-range data and the preset strength value is smallest. A first instruction is sent to the target vehicle unit, indicating that the transmission level of the target vehicle unit be set to the target transmission level. This solves the problem of low data transmission success rate caused by microwave absorption in the related art's methods for adjusting the radio frequency parameters of vehicle units, thus improving the data transmission success rate.

[0041] In one exemplary embodiment, receiving short-range data transmitted by a target vehicle-mounted unit at at least one transmission level includes:

[0042] S11, Receive first short-range data transmitted by the target vehicle unit in accordance with the first transmission mode, wherein at least one transmission mode includes the first transmission mode;

[0043] S12, if the signal strength value of the first short-range data is less than a preset strength value and the first transmission level is not the highest transmission level in a preset set of transmission levels, the first adjustment step is repeated until the first termination condition is met. During the execution of the first adjustment step, the transmission level of the target vehicle unit is the current transmission level.

[0044] Send a first adjustment command to the target vehicle-mounted unit, wherein the first adjustment command is used to instruct the target vehicle-mounted unit to increase its transmission level;

[0045] The target vehicle unit receives second short-range data sent in response to the first adjustment command at the current transmission level after adjustment.

[0046] In this embodiment, when the transmission level adjustment begins, the target vehicle-mounted unit can first transmit first short-range data at the first transmission level, and the detection module can receive the first short-range data transmitted by the target vehicle-mounted unit. The aforementioned at least one transmission level may include the first transmission level. Here, the first transmission level may be a transmission level randomly selected by the target vehicle-mounted unit from its preset set of transmission levels (e.g., the aforementioned 10 levels), or it may be the minimum transmission level selected by the target vehicle-mounted unit from its preset set of transmission levels, or it may be the maximum transmission level selected by the target vehicle-mounted unit from its preset set of transmission levels. This embodiment does not limit this.

[0047] If the signal strength value of the first short-range data is less than a preset strength value, and the first transmission level is not the maximum transmission level in a preset set of transmission levels, the first adjustment step can be repeated until a first termination condition is met. Here, the first termination condition includes at least one of the following: the signal strength value of the currently received short-range data (i.e., the second short-range data) is greater than or equal to the preset strength value, and the current transmission level after adjustment is equal to the maximum transmission level. The preset set of transmission levels can be transmission levels pre-set on the target vehicle unit and allowed to be used by the target vehicle unit, and can include multiple different transmission levels.

[0048] During the execution of the first adjustment step, the transmission level of the target vehicle-mounted unit is the current transmission level. The first adjustment step can be: sending a first adjustment command to the target vehicle-mounted unit, and receiving second short-range data from the target vehicle-mounted unit in response to the first adjustment command, transmitted at the adjusted current transmission level. Here, the first adjustment command can be used to instruct the target vehicle-mounted unit to increase its transmission level. The method of sending the first adjustment command can be similar to the method of sending the aforementioned first indication information, and will not be elaborated upon in this embodiment.

[0049] For example, taking a preset strength value of V1 as an example, the vehicle unit's transmission levels are set to 0-10. When the detection module receives data sent by the vehicle unit, its DSRC module obtains an RSSI value based on the data signal strength and compares this RSSI value with the stored standard value V1. If the received RSSI value is less than V1, and the vehicle unit's current transmission level is 3, the detection module sends a command to the vehicle unit via Bluetooth to increase the transmission level. Correspondingly, after receiving this command, the vehicle unit can increase the transmission level to 4 and send short-range data at level 4. If the received signal strength value is still less than V1, the detection module can continue to send commands to increase the transmission level; if the received signal strength value is greater than or equal to V1, it stops sending commands to increase the transmission level.

[0050] Optionally, if the signal strength value of the first short-range data is less than the preset strength value and the signal strength value of the received second short-range data is equal to the preset strength value, the transmission level corresponding to the second short-range data can be used as the target transmission level.

[0051] Optionally, if the signal strength value of the first short-range data is less than a preset strength value and the signal strength value of the received second short-range data is greater than the preset strength value, the transmission level corresponding to the short-range data with the smaller absolute value of the difference between the signal strength value of the first short-range data and the preset strength value and the absolute value of the difference between the signal strength value of the second short-range data and the preset strength value can be used as the target transmission level.

[0052] For example, such as Figure 4 As shown, taking a preset strength value of V1 as an example, after the system starts detection, the detection module sends command 'a' to the OBU via Bluetooth. Upon receiving command 'a', the OBU begins sending DSRC data. The vehicle unit's transmission settings are set to 0-10 levels. When the detection module receives data sent by the OBU, its DSRC module obtains an RSSI value based on the data signal strength and compares this RSSI value with the stored standard value V1. If |RSSI-V1| is not the minimum value, an adjustment command is sent to the OBU to adjust the transmission level. If |RSSI-V1| is the minimum value, the OBU's transmission level at this time is stored in the OBU as the optimal transmission level.

[0053] Here, if the first termination condition is met after a certain execution of the first adjustment step, the next first adjustment step can be skipped. At this point, the signal strength values ​​corresponding to the first transmission level and one or more transmission levels higher than the first transmission level have been obtained, and subsequent steps can be executed, such as step S204.

[0054] This embodiment improves the accuracy of selecting the target transmission level by determining whether the transmission level of the vehicle-mounted unit needs to be increased by setting a preset intensity value.

[0055] In one exemplary embodiment, after receiving the first short-range data transmitted by the target vehicle-mounted unit according to the first transmission level, the above method further includes:

[0056] S21, if the signal strength value of the first short-range data is greater than a preset strength value and the first transmission level is not the lowest transmission level in a preset set of transmission levels, the second adjustment step is repeated until the second termination condition is met. During the execution of the second adjustment step, the transmission level of the target vehicle unit is the current transmission level.

[0057] Send a second adjustment command to the target vehicle unit, wherein the second adjustment command is used to instruct the target vehicle unit to lower the transmission level;

[0058] The target vehicle unit receives the third short-range data sent in response to the second adjustment command, according to the current transmission level after being lowered.

[0059] In this embodiment, if the signal strength value of the first short-range data is greater than a preset strength value and the first transmission level is not the lowest transmission level in a preset set of transmission levels, the second adjustment step can be repeated until the second termination condition is met. Here, the second termination condition may include at least one of the following: the signal strength value of the third short-range data is less than or equal to the preset strength value, and the current transmission level after adjustment is equal to the lowest transmission level.

[0060] During the second adjustment step, the target vehicle-mounted unit's transmission level is the current transmission level. The second adjustment step can be: sending a second adjustment command to the target vehicle-mounted unit, and receiving third short-range data from the target vehicle-mounted unit in response to the second adjustment command, transmitted at the lowered current transmission level. Here, the second adjustment command can be used to instruct the target vehicle-mounted unit to lower its transmission level.

[0061] For example, taking a preset strength value of V1 as an example, the vehicle unit's transmission level is set to 0-10. When the detection module receives data from the vehicle unit with an RSSI value greater than V1, and the vehicle unit's current transmission level is 5, the detection module will send a command to the vehicle unit via Bluetooth to lower the transmission level. Correspondingly, after receiving this command, the vehicle unit can lower its transmission level to 4 and transmit short-range data at level 4. If the received signal strength value is still greater than V1, the detection module can continue to send the command to lower the transmission level; if the received signal strength value is equal to V1, it will stop sending the command to lower the transmission level.

[0062] Optionally, if the signal strength value of the first short-range data is greater than the preset strength value and the signal strength value of the received third short-range data is equal to the preset strength value, the transmission level corresponding to the third short-range data can be used as the target transmission level.

[0063] Optionally, if the signal strength value of the first short-range data is greater than a preset strength value and the signal strength value of the received third short-range data is less than the preset strength value, the transmission level corresponding to the short-range data with the smaller absolute value of the difference between the signal strength value of the first short-range data and the preset strength value and the signal strength value of the third short-range data and the preset strength value can be used as the target transmission level.

[0064] Here, if the second termination condition is met after a second adjustment step is executed, the next second adjustment step can be skipped. At this point, the signal strength values ​​corresponding to the first transmission level and one or more transmission levels lower than the first transmission level have been obtained, and subsequent steps can be executed, such as step S204.

[0065] This embodiment improves the accuracy of selecting the target transmission level by determining whether the transmission level of the vehicle-mounted unit needs to be lowered by using a preset intensity value.

[0066] In one exemplary embodiment, after receiving short-range data transmitted by the target vehicle-mounted unit at at least one transmission level, the method further includes:

[0067] S31, if in at least one transmission position there is no transmission position where the signal strength value of the corresponding short-range data is greater than or equal to the preset strength value, an abnormal alarm is issued. The abnormal alarm is used to prompt checking the setting position of the target vehicle unit or whether the target vehicle unit is damaged.

[0068] In this embodiment, if there is no transmission mode in at least one transmission mode where the signal strength value of the corresponding short-range data is greater than or equal to a preset strength value, an abnormal alarm can be issued. Here, the abnormal alarm can be used to prompt checking the installation location of the target vehicle unit or whether the target vehicle unit is damaged.

[0069] For example, if the RSSI value of the data received by the detection module is still too low when the OBU transmission level is set to the maximum, the detection module will issue an alarm to remind the operator that if the OBU is not in the current placement position, it will cause the vehicle to be unable to pass through the ETC station normally, and the OBU placement position or whether the OBU is damaged needs to be checked.

[0070] This embodiment uses the signal strength value of the short-range data received by the detection module to determine whether the vehicle unit needs to be inspected, which can improve the efficiency of parameter adjustment of the vehicle unit.

[0071] In one exemplary embodiment, the above method further includes:

[0072] S41, transmit fourth short-range data to the target vehicle unit according to the second transmission position, wherein the fourth short-range data includes wake-up data for waking up the target vehicle unit;

[0073] S42, if no wake-up indication information is received from the target vehicle unit in response to the fourth short-range data transmission, the third adjustment step is repeated until the third termination condition is met, wherein the wake-up indication information is used to indicate that the target vehicle unit is woken up by the wake-up data:

[0074] Send a third adjustment command to the target vehicle unit, wherein the third adjustment command is used to instruct the wake-up level of the target vehicle unit to be increased;

[0075] The fourth short-range data was transmitted to the target vehicle-mounted unit at the second launch position.

[0076] The third termination condition includes: receiving a wake-up indication message from the target vehicle unit in response to the fourth short-range data transmission, and the wake-up level of the target vehicle unit is already the maximum wake-up level of the target vehicle unit.

[0077] In addition to adjusting the transmit setting, the wake-up setting and receive setting of the target vehicle unit can also be adjusted. When adjusting the wake-up setting and receive setting of the target vehicle unit, short-range data can be sent to the target vehicle unit through the detection module. Based on the reception status of the target vehicle unit, it can be determined whether the wake-up setting and receive setting of the target vehicle unit need to be adjusted.

[0078] In this embodiment, fourth short-range data can be transmitted to the target vehicle-mounted unit at the second transmission level. Here, the fourth short-range data may include wake-up data for waking up the target vehicle-mounted unit. The second transmission level may be the optimal transmission level determined by the calibrated detection module.

[0079] Optionally, to better simulate the data transmitted by the roadside unit and ensure that the signal strength value of the short-range data transmitted by the detection module after passing through the vehicle glass is consistent with that of the short-range data transmitted by the roadside unit, the calibration method for the second transmission setting can be as follows: Install the detection module on the inside of the vehicle glass, park the vehicle in the center area covered by the communication range of the roadside unit, turn on the DSRC radio frequency module of the detection module, and simultaneously turn on the antenna of the roadside unit to start transmitting data. The detection module can obtain the signal strength value of the short-range data transmitted by the roadside unit after passing through the vehicle glass by receiving the short-range data. To make the calibration data more accurate, multiple different vehicles can be selected to obtain multiple sets of signal strength values, and their average values ​​can be calculated to obtain the average strength value. Then, install the two detection modules on the inside and outside of the same area of ​​the vehicle glass, respectively, turn on the DSRC radio frequency modules of the first and second detection modules, adjust the transmission setting of the first detection module, and when the absolute value of the difference between the signal strength value of the short-range data received by the second detection module and the average strength value is the smallest, record the transmission setting of the first detection module at this time as the second transmission setting. In addition, multiple different vehicles can be used to determine the value of the second firing gear using the above method.

[0080] For example, the RSSI value of the DSRC data transmitted by the detection module to the OBU can be calibrated first, such as... Figure 5As shown, the detection module is attached to the microwave area inside the vehicle glass. The vehicle is parked in the center of the RSU's coverage area. The DSRC radio frequency module of the detection module is turned on, and the RSU antenna is also turned on to start transmitting DSRC data. At this time, the detection module will obtain the RSSI value of the data transmitted by the RSU through the glass. To calibrate the data more accurately, multiple vehicles can be used to obtain multiple sets of RSSI values. The average of these values ​​is then taken to obtain V2. For example... Figure 6 As shown, turn on the DSRC radio frequency modules of detection module 1 and detection module 2, adjust the DSRC transmission level of detection module 1, and when the |RSSI-V2| of the data received by detection module 2 is the minimum, record the transmission level P of detection module 1 at this time. In order to make the calibration more accurate, multiple car glass pieces can be replaced to obtain the optimal transmission level P, and record this level P (i.e., the second transmission level) in the detection module.

[0081] Optionally, the detection module may begin transmitting fourth short-range data to the target vehicle unit at the second transmission gear upon receiving a command from the target vehicle unit indicating the end of transmission gear calibration. The command indicating the end of transmission gear calibration is a command sent by the target vehicle unit upon receiving the aforementioned first indication information and determining the target transmission gear.

[0082] Correspondingly, within a certain period of time after the target vehicle unit sends the above-mentioned instruction indicating the end of the transmission gear calibration, if it receives wake-up data in the fourth short-range data transmitted by the detection module, the target vehicle unit can send a wake-up instruction to the detection module. If it does not receive wake-up data in the fourth short-range data transmitted by the detection module within a certain period of time, the target vehicle unit can send a wake-up instruction to the detection module, for example, through the instruction sent to the detection module by the aforementioned Bluetooth module.

[0083] In this embodiment, if no wake-up indication information is received from the target vehicle unit in response to the fourth short-range data transmission, the third adjustment step can be repeated until the third termination condition is met. Here, the wake-up indication information can be used to indicate that the target vehicle unit is woken up by the wake-up data, and the third termination condition may include: receiving the wake-up indication information from the target vehicle unit in response to the fourth short-range data transmission, and the wake-up level of the target vehicle unit is already the maximum wake-up level of the target vehicle unit.

[0084] The aforementioned third adjustment step may be: sending a third adjustment command to the target vehicle-mounted unit, and transmitting fourth short-range data to the target vehicle-mounted unit according to the second transmission level. Here, the third adjustment command can be used to instruct the target vehicle-mounted unit to increase its wake-up level. The method of sending the third adjustment command can be similar to the method of sending the aforementioned first instruction information, and will not be described in detail here.

[0085] For example, such as Figure 7 As shown, taking the second transmission position as position P as an example, the OBU can send command b to the detection module. The detection module starts sending DSRC data to the OBU at transmission position P. If the OBU is not woken up (for example, if no wake-up data is received within a certain time after sending the "transmission position calibration end" command b, it is considered not to be woken up), it will send a message to the detection module via Bluetooth indicating that the OBU is not woken up. The detection module will send a command to the OBU via Bluetooth to adjust the wake-up sensitivity position (i.e., increase the wake-up position command) until the OBU can be woken up by the DSRC data sent by the detection module. The OBU can send a wake-up command to the detection module via Bluetooth. The OBU wake-up position at this time can be stored in the OBU. The wake-up position at this time is the appropriate wake-up position corresponding to the car glass.

[0086] In this embodiment, the detection module sends short-range data according to the calibrated transmission level to determine the wake-up level of the target vehicle unit, which can improve the sensitivity of the target vehicle unit.

[0087] In one exemplary embodiment, the fourth short-range data further includes data other than wake-up data; after transmitting the fourth short-range data to the target vehicle-mounted unit according to the second transmission level, the method further includes:

[0088] S51, if a wake-up instruction message is received from the target vehicle unit in response to the transmission of the fourth short-range data, and no fifth short-range data is received from the target vehicle unit in response to the return of the fourth short-range data, the fourth adjustment step is repeated until the fourth termination condition is met, wherein the fifth short-range data is transmitted after the target vehicle unit receives other data;

[0089] S52, send a fourth adjustment command to the target vehicle unit, wherein the fourth adjustment command is used to instruct the target vehicle unit to increase the receiving level;

[0090] S53, in the second firing position, transmits the fourth short-range data to the target vehicle-mounted unit;

[0091] The fourth termination condition includes: receiving the fifth short-range data in response to the fourth short-range data from the target vehicle unit, and the target vehicle unit's reception level being the maximum reception level of the target vehicle unit.

[0092] Since the wake-up and receive modes of the target vehicle unit are two independent modes, even when the target vehicle unit is woken up by the wake-up indication information, it may not be able to receive other data in the fourth short-range data. In this embodiment, after the target vehicle unit is woken up, if it can receive other data in the fourth short-range data, it can transmit the fifth short-range data to the detection module; otherwise, it can send an indication message to the detection module via the Bluetooth module to indicate that the target vehicle unit is woken up but has not received other data.

[0093] In this embodiment, if a wake-up indication message is received from the target vehicle unit in response to the fourth short-range data transmission, but no fifth short-range data is received from the target vehicle unit in response to the fourth short-range data, the fourth adjustment step can be repeated until the fourth termination condition is met. Here, the fifth short-range data may be transmitted after the target vehicle unit has received other data. The fourth termination condition may include: receiving the fifth short-range data from the target vehicle unit in response to the fourth short-range data, and the target vehicle unit's reception level being its maximum reception level.

[0094] The aforementioned fourth adjustment step may include: sending a fourth adjustment command to the target vehicle-mounted unit to instruct the target vehicle-mounted unit to increase its receiving level. Here, the fourth adjustment command can be used to instruct the target vehicle-mounted unit to increase its receiving level; and transmitting fourth short-range data to the target vehicle-mounted unit according to the second transmission level. The fourth short-range data may be transmitted a certain time after the fourth adjustment command is sent. The method of sending the fourth adjustment command can be similar to the method of sending the aforementioned first indication information, and will not be described in detail here.

[0095] For example, such as Figure 7 As shown, taking the second transmission gear as gear P as an example, the detection module adjusts the transmission gear to P and sends specific DSRC data to the OBU. If the OBU is only woken up but does not receive data, it means that the OBU's reception gear is too low. If the detection module does not receive the DSRC data replied by the OBU within a certain period of time, it will send an adjustment reception gear command to the OBU via Bluetooth until the detection module can receive the DSRC data replied by the OBU. At this time, the reception gear is the appropriate gear for the car window.

[0096] Optionally, after the target vehicle unit adjusts the gear according to the instructions of the detection module, the target vehicle unit can send a "all gears adjusted" command to the detection module via Bluetooth (i.e., Figure 7 (c) The file adjustment ends. After receiving the relevant instruction, the detection module can turn off the Bluetooth module and the DSRC radio frequency module, and display "File adjustment ends" on the LCD.

[0097] Optionally, if the target vehicle unit still cannot be woken up by the DSRC data of the detection module after the wake-up level is raised to the maximum, the detection module will issue an alarm to remind the operator that the placement position of the target vehicle unit will cause the target vehicle to be unable to pass through the ETC station normally, and the placement position of the target vehicle unit or whether the target vehicle unit is damaged needs to be checked.

[0098] In this embodiment, by using a detection module to send short-range data according to a calibrated transmission level to determine the receiving level of the target vehicle-mounted unit, the receiving efficiency of the target vehicle-mounted unit to receive data sent by the roadside unit can be improved.

[0099] In one exemplary embodiment, after transmitting the fourth short-range data to the target vehicle-mounted unit according to the second transmission level, the method further includes:

[0100] S61, receive the second indication information sent by the target vehicle unit through the Bluetooth module, wherein the second indication information is used to indicate whether the target vehicle unit is woken up.

[0101] In this embodiment, after transmitting the fourth short-range data to the target vehicle unit according to the second transmission level, the detection module can receive the second indication information sent by the target vehicle unit via the Bluetooth module. Here, the second indication information can be used to indicate whether the target vehicle unit has been woken up; it can be a wake-up indication or a non-wake-up indication.

[0102] It should be noted that, in addition to the Bluetooth module, the second instruction information sent by the target vehicle unit can also be received wirelessly via Wi-Fi hotspots. Compared with other wireless communication methods, the Bluetooth module has relatively high cost and communication stability. At the same time, by indicating whether the target vehicle unit has been woken up through instruction information, it is convenient to know the status of the other end and improve the reliability of information exchange.

[0103] In this embodiment, the indication information of whether the target vehicle unit has been woken up can help the detection module determine whether it is necessary to instruct the target vehicle unit to increase the wake-up and reception levels, thereby improving the accuracy of the radio frequency parameter adjustment of the vehicle unit.

[0104] The method for adjusting the radio frequency parameters of the vehicle-mounted unit in this application embodiment will be explained below with reference to an optional example. In this optional example, the target vehicle-mounted unit is an OBU.

[0105] This optional example provides an OBU system that automatically adjusts radio frequency parameters. By using the detection module and the OBU together, the OBU radio frequency parameters can be adaptively adjusted according to different types of glass, thereby obtaining a suitable set of radio frequency parameters and reducing the problem of cars failing to pass through ETC lanes due to car glass or car film.

[0106] The procedure for adjusting the radio frequency parameters of the vehicle-mounted unit in this optional example may include the following steps:

[0107] Step 1: Calibrate the DSRC data transmitted by the OBU and the RSSI value V1 after penetrating the glass.

[0108] Step 2: The calibration detection module provides the RSSI value V2 of the DSRC data transmitted by the OBU after penetrating the glass.

[0109] Step 3: Calibrate the transmission level P of the detection module based on the RSSI value V2.

[0110] Step 4: The detection module sends a command to the OBU via Bluetooth to trigger the OBU to send DSRC data. The detection module determines the OBU's transmission level based on the relationship between the RSSI value of the received DSRC data and V1.

[0111] Step 5: The OBU sends a command to the detection module via Bluetooth, triggering the detection module to send DSRC data. The detection module determines the OBU's wake-up level and receive level based on the reception status fed back by the OBU.

[0112] This optional example demonstrates how, by pre-calibrating the detection module and storing the calibrated RSSI value and DSRC transmission setting in the module, the stored calibrated RSSI value is compared with the RSSI value of the DSRC data emitted by the OBU through the glass, allowing for real-time adjustment of the OBU's transmission parameters. Simultaneously, data is sent to the in-vehicle OBU via the calibrated DSRC transmission setting. Based on the OBU's wake-up and response data status, the wake-up and reception parameters are dynamically adjusted, adapting to different glass surfaces in different vehicles. This helps the OBU adjust its radio frequency parameters to more suitable levels, thereby improving the success rate of vehicles passing through ETC lanes. Furthermore, since the detection device can be reused for different OBUs, it effectively saves costs. Simply connect the detection device and the OBU via Bluetooth, activate the detection function, and the OBU will automatically adjust its radio frequency parameters, making the process simpler and more convenient.

[0113] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to this application. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to this application.

[0114] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods according to the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM (Read-Only Memory) / RAM (Random Access Memory), magnetic disk, optical disk), and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods of the various embodiments of this application.

[0115] According to another aspect of the embodiments of this application, a system for adjusting the radio frequency parameters of an on-board unit for implementing the above-described method for adjusting the radio frequency parameters of an on-board unit is also provided. The system for adjusting the radio frequency parameters of the on-board unit may include:

[0116] The target vehicle unit is installed on the inside of the windshield of the target vehicle;

[0117] A data processing unit, disposed on the outside of the vehicle window of a target vehicle, is used to receive short-range data transmitted by a target vehicle-mounted unit at at least one transmission level, wherein the short-range data corresponding to each of the at least one transmission level is transmitted through the vehicle window of the target vehicle; if, among the at least one transmission level, there exists a transmission level where the signal strength value of the corresponding short-range data is greater than or equal to a preset strength value, a target transmission level is selected from the at least one transmission level, wherein the target transmission level is the transmission level where the difference between the signal strength value of the corresponding short-range data and the preset strength value is the smallest; and a first instruction information is sent to the target vehicle-mounted unit, wherein the first instruction information is used to instruct the transmission level of the target vehicle-mounted unit to be set to the target transmission level.

[0118] It should be noted that the data processing component can be a server or a component on a processing device that performs the aforementioned functions of receiving short-range data transmitted by the vehicle-mounted unit and sending instruction information, such as a processor or controller. The methods of receiving short-range data transmitted by the vehicle-mounted unit and sending instruction information are similar to those described in the previous embodiments and will not be repeated here.

[0119] The above-mentioned vehicle-mounted unit radio frequency parameter adjustment system receives short-range data transmitted by the target vehicle-mounted unit at at least one transmission level. The target vehicle-mounted unit is located inside the windshield of the target vehicle, and the short-range data corresponding to each of the at least one transmission level is transmitted through the windshield. If, among the at least one transmission level, there exists a transmission level where the signal strength value of the corresponding short-range data is greater than or equal to a preset strength value, a target transmission level is selected from the at least one transmission level. The target transmission level is the transmission level where the difference between the signal strength value of the corresponding short-range data and the preset strength value is the smallest. A first instruction message is sent to the target vehicle-mounted unit, indicating that the transmission level of the target vehicle-mounted unit be set to the target transmission level. This solves the problem of low data transmission success rate caused by the easy absorption of microwaves in related technologies for adjusting the radio frequency parameters of vehicle-mounted units, thus improving the data transmission success rate.

[0120] In one exemplary embodiment, the data processing unit is further configured to receive first short-range data transmitted by the target vehicle unit at a first transmission level, wherein at least one transmission level includes the first transmission level; if the signal strength value of the first short-range data is less than a preset strength value and the first transmission level is not the maximum transmission level in a preset set of transmission levels, the unit repeatedly executes a first adjustment step until a first termination condition is met, wherein the transmission level of the target vehicle unit is the current transmission level when the first adjustment step is executed; sends a first adjustment command to the target vehicle unit, wherein the first adjustment command is used to instruct the transmission level of the target vehicle unit to be increased; and receives second short-range data transmitted by the target vehicle unit in response to the first adjustment command at the increased current transmission level; wherein the first termination condition includes at least one of the following: the signal strength value of the second short-range data is greater than or equal to the preset strength value, and the increased current transmission level is equal to the maximum transmission level.

[0121] In an exemplary embodiment, the data processing unit is further configured to repeatedly execute the second adjustment step until a second termination condition is met when the signal strength value of the first short-range data is greater than a preset strength value and the first transmission level is not the minimum transmission level in a preset set of transmission levels. During the execution of the second adjustment step, the transmission level of the target vehicle unit is the current transmission level. The unit also sends a second adjustment command to the target vehicle unit, indicating that the transmission level of the target vehicle unit should be lowered. Finally, it receives third short-range data sent by the target vehicle unit in response to the second adjustment command at the lowered current transmission level. The second termination condition includes at least one of the following: the signal strength value of the third short-range data is less than or equal to the preset strength value, and the lowered current transmission level is equal to the minimum transmission level.

[0122] In one exemplary embodiment, the data processing unit is further configured to issue an abnormal alarm when there is no corresponding short-range data signal strength value greater than or equal to a preset strength value in at least one transmission position, wherein the abnormal alarm is used to prompt for checking the setting position of the target vehicle unit or whether the target vehicle unit is damaged.

[0123] In one exemplary embodiment, the data processing unit is further configured to transmit fourth short-range data to the target vehicle unit at a second transmission level, wherein the fourth short-range data includes wake-up data for waking up the target vehicle unit; if no wake-up indication information is received from the target vehicle unit in response to the fourth short-range data, the third adjustment step is repeated until a third termination condition is met, wherein the wake-up indication information is used to indicate that the target vehicle unit is woken up by the wake-up data; send a third adjustment command to the target vehicle unit, wherein the third adjustment command is used to indicate that the wake-up level of the target vehicle unit is increased; transmit the fourth short-range data to the target vehicle unit at the second transmission level; wherein the third termination condition includes: receiving the wake-up indication information from the target vehicle unit in response to the fourth short-range data, and the wake-up level of the target vehicle unit is already the maximum wake-up level of the target vehicle unit.

[0124] In one exemplary embodiment, the data processing unit is further configured to, upon receiving a wake-up indication message from the target vehicle unit in response to the transmission of the fourth short-range data and without receiving fifth short-range data returned by the target vehicle unit in response to the fourth short-range data, repeatedly execute the fourth adjustment step until a fourth termination condition is met, wherein the fifth short-range data is transmitted after the target vehicle unit receives other data; send a fourth adjustment command to the target vehicle unit, wherein the fourth adjustment command is used to instruct to increase the reception level of the target vehicle unit; transmit the fourth short-range data to the target vehicle unit according to the second transmission level; wherein the fourth termination condition includes: receiving the fifth short-range data returned by the target vehicle unit in response to the fourth short-range data, and the reception level of the target vehicle unit is already the maximum reception level of the target vehicle unit.

[0125] In one exemplary embodiment, the data processing component is further configured to receive second indication information sent by the target vehicle unit via a Bluetooth module, wherein the second indication information is used to indicate whether the target vehicle unit has been woken up.

[0126] It should be noted that the examples and application scenarios implemented by the above-described components and corresponding steps are the same, but are not limited to the content disclosed in the above embodiments. It should also be noted that the above-described components, as part of the system, can operate in environments such as... Figure 1 The hardware environment shown can be implemented through software or hardware, and the hardware environment includes the network environment.

[0127] According to another aspect of the embodiments of this application, a storage medium is also provided. Optionally, in this embodiment, the storage medium can be used to execute program code for the method of adjusting the radio frequency parameters of any of the vehicle-mounted units described above in the embodiments of this application.

[0128] Optionally, in this embodiment, the storage medium may be located on at least one of the network devices in the network shown in the above embodiment.

[0129] Optionally, in this embodiment, the storage medium is configured to store program code for performing the following steps:

[0130] S1, receiving short-range data transmitted by the target vehicle unit in at least one transmission position, wherein the target vehicle unit is disposed inside the glass of the target vehicle, and the short-range data corresponding to each of the at least one transmission position is transmitted through the glass of the target vehicle.

[0131] S2, if in at least one transmission position there is a transmission position where the signal strength value of the corresponding short-range data is greater than or equal to a preset strength value, select a target transmission position from the at least one transmission position, wherein the target transmission position is the transmission position with the smallest difference between the signal strength value of the corresponding short-range data and the preset strength value among the at least one transmission positions.

[0132] S3, send a first instruction message to the target vehicle unit, wherein the first instruction message is used to instruct the transmission mode of the target vehicle unit to be set to the target transmission mode.

[0133] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be repeated in this embodiment.

[0134] Optionally, in this embodiment, the storage medium may include, but is not limited to, various media capable of storing program code, such as USB flash drives, ROMs, RAMs, portable hard drives, magnetic disks, or optical disks.

[0135] According to another aspect of the embodiments of this application, an electronic device for implementing the above-described method for adjusting the radio frequency parameters of an on-board unit is also provided. The electronic device may be a server, a terminal, or a combination thereof.

[0136] Figure 8 This is a structural block diagram of an optional electronic device according to an embodiment of this application, such as... Figure 8 As shown, it includes a processor 802, a communication interface 804, a memory 806, and a communication bus 808. The processor 802, communication interface 804, and memory 806 communicate with each other via the communication bus 808.

[0137] Memory 806 is used to store computer programs;

[0138] When processor 802 executes a computer program stored in memory 806, it performs the following steps:

[0139] S1, receiving short-range data transmitted by the target vehicle unit in at least one transmission position, wherein the target vehicle unit is disposed inside the glass of the target vehicle, and the short-range data corresponding to each of the at least one transmission position is transmitted through the glass of the target vehicle.

[0140] S2, if in at least one transmission position there is a transmission position where the signal strength value of the corresponding short-range data is greater than or equal to a preset strength value, select a target transmission position from the at least one transmission position, wherein the target transmission position is the transmission position with the smallest difference between the signal strength value of the corresponding short-range data and the preset strength value among the at least one transmission positions.

[0141] S3, send a first instruction message to the target vehicle unit, wherein the first instruction message is used to instruct the transmission mode of the target vehicle unit to be set to the target transmission mode.

[0142] Optionally, the communication bus can be a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus, etc. This communication bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 8 The symbol is represented by a single thick line, but this does not indicate that there is only one bus or one type of bus. The communication interface is used for communication between the aforementioned electronic device and other devices.

[0143] The memory may include RAM, or non-volatile memory, such as at least one disk storage device. Optionally, the memory may also be at least one storage device located remotely from the aforementioned processor.

[0144] The processors mentioned above can be general-purpose processors, including but not limited to: CPU (Central Processing Unit), NP (Network Processor), etc.; they can also be DSP (Digital Signal Processor), ASIC (Application Specific Integrated Circuit), FPGA (Field-Programmable Gate Array), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components.

[0145] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be repeated here.

[0146] Those skilled in the art will understand that Figure 8 The structure shown is for illustrative purposes only. The device that implements the above method for adjusting the radio frequency parameters of the vehicle unit can be a terminal device, such as a smartphone (e.g., an Android phone, an iOS phone), a tablet computer, a PDA, a mobile Internet device (MID), a PAD, or other terminal devices. Figure 8 This does not limit the structure of the aforementioned electronic device. For example, the electronic device may also include components that are more... Figure 8 The more or fewer components shown (such as network interfaces, display devices, etc.), or having the same Figure 8 The different configurations shown.

[0147] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be implemented by a program instructing the hardware related to the terminal device. The program can be stored in a computer-readable storage medium, which may include: flash drive, ROM, RAM, disk or optical disk, etc.

[0148] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0149] If the integrated units in the above embodiments are implemented as software functional units and sold or used as independent products, they can be stored in the aforementioned computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause one or more computer devices (which may be personal computers, servers, or network devices, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application.

[0150] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0151] In the several embodiments provided in this application, it should be understood that the disclosed client can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces, indirect coupling or communication connection between units or modules, and may be electrical or other forms.

[0152] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of the solution provided in this embodiment, depending on actual needs.

[0153] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or at least two units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0154] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A method of adjusting radio frequency parameters of a vehicle mounted unit, characterized by, The method comprises: receiving short-range data transmitted by a target vehicle-mounted unit according to at least one transmission slot, wherein the target vehicle-mounted unit is arranged on the inner side of the vehicle glass of a target vehicle, and the short-range data corresponding to each transmission slot in the at least one transmission slot is transmitted through the vehicle glass of the target vehicle; in the case where, in the at least one transmission slot, there is a transmission slot whose signal strength value of the corresponding short-range data is greater than or equal to a preset strength value, selecting a target transmission slot from the at least one transmission slot, wherein the target transmission slot is the transmission slot in the at least one transmission slot whose difference between the signal strength value of the corresponding short-range data and the preset strength value is the smallest; sending first indication information to the target vehicle-mounted unit, wherein the first indication information is used to instruct to set the transmission slot of the target vehicle-mounted unit as the target transmission slot; wherein the receiving short-range data transmitted by a target vehicle-mounted unit according to at least one transmission slot comprises: receiving first short-range data transmitted by the target vehicle-mounted unit according to a first transmission slot, wherein the at least one transmission slot comprises the first transmission slot; in the case where the signal strength value of the first short-range data is less than the preset strength value and the first transmission slot is not the maximum transmission slot in a preset group of transmission slots, repeatedly performing a first adjustment step until a first end condition is met, wherein, when the first adjustment step is performed, the transmission slot of the target vehicle-mounted unit is a current transmission slot; sending a first adjustment instruction to the target vehicle-mounted unit, wherein the first adjustment instruction is used to instruct to increase the transmission slot of the target vehicle-mounted unit; receiving second short-range data transmitted by the target vehicle-mounted unit in response to the first adjustment instruction according to the current transmission slot after the increase; wherein the first end condition comprises at least one of the following: the signal strength value of the second short-range data is greater than or equal to the preset strength value, and the current transmission slot after the increase is equal to the maximum transmission slot. The method further comprises: when the wake-up range and the receiving range of the target vehicle-mounted unit are adjusted, sending, by the detection module, short-range data to the target vehicle-mounted unit, and determining whether the wake-up range and the receiving range of the target vehicle-mounted unit need to be adjusted according to the receiving condition of the target vehicle-mounted unit; transmitting fourth short-range data to the target vehicle-mounted unit according to the second transmission range, wherein the fourth short-range data contains wake-up data for waking up the target vehicle-mounted unit; in the case where the wake-up indication information sent by the target vehicle-mounted unit in response to the fourth short-range data is not received, repeatedly performing the third adjustment step until the third end condition is met, wherein the wake-up indication information is used to indicate that the target vehicle-mounted unit is woken up by the wake-up data; sending a third adjustment instruction to the target vehicle-mounted unit, wherein the third adjustment instruction is used to instruct to increase the wake-up range of the target vehicle-mounted unit; transmitting the fourth short-range data to the target vehicle-mounted unit according to the second transmission range; wherein the third end condition includes that the wake-up indication information sent by the target vehicle-mounted unit in response to the fourth short-range data is received, and the wake-up range of the target vehicle-mounted unit has reached the maximum wake-up range of the target vehicle-mounted unit.

2. The method of claim 1, wherein, After receiving the first short-range data transmitted by the target vehicle-mounted unit according to the first transmission range, the method further comprises: In the case where the signal strength value of the first short-range data is greater than the preset strength value, and the first transmission range is not the minimum transmission range in the preset group of transmission ranges, repeatedly performing the second adjustment step until the second end condition is met, wherein when the second adjustment step is performed, the transmission range of the target vehicle-mounted unit is the current transmission range: sending a second adjustment instruction to the target vehicle-mounted unit, wherein the second adjustment instruction is used to instruct to decrease the transmission range of the target vehicle-mounted unit; receiving third short-range data sent by the target vehicle-mounted unit in response to the second adjustment instruction according to the current transmission range after being decreased; wherein the second end condition includes at least one of the following: the signal strength value of the third short-range data is less than or equal to the preset strength value, and the current transmission range after being decreased is equal to the minimum transmission range.

3. The method of claim 1, wherein, After receiving the short-range data transmitted by the target vehicle-mounted unit according to at least one transmission range, the method further comprises: in the case where there is no transmission range corresponding to the signal strength value of the short-range data greater than or equal to the preset strength value in the at least one transmission range, issuing an abnormal alarm, wherein the abnormal alarm is used to prompt to check the setting position of the target vehicle-mounted unit or whether the target vehicle-mounted unit is damaged.

4. The method of claim 1, wherein, The fourth short-range data further comprises other data in addition to the wake-up data; after transmitting the fourth short-range data to the target vehicle-mounted unit according to the second transmission range, the method further comprises: repeating the fourth adjusting step until a fourth end condition is met, in a case that the target in-vehicle unit does not return fifth short-range data in response to the fourth short-range data, the fifth short-range data being transmitted after the target in-vehicle unit receives the other data; sending a fourth adjusting instruction to the target in-vehicle unit, the fourth adjusting instruction being used to instruct to increase a receiving position of the target in-vehicle unit; transmitting the fourth short-range data to the target in-vehicle unit according to the second transmitting position; wherein the fourth end condition comprises: receiving the fifth short-range data returned by the target in-vehicle unit in response to the fourth short-range data, and the receiving position of the target in-vehicle unit being the maximum receiving position of the target in-vehicle unit.

5. The method of claim 1, wherein, after the transmitting the fourth short-range data to the target in-vehicle unit according to the second transmitting position, the method further comprises: receiving second indication information sent by the target in-vehicle unit through the Bluetooth module, the second indication information being used to indicate whether the target in-vehicle unit is woken up.

6. A system for adjusting radio frequency parameters of a vehicle mounted unit, characterized by, comprising: a target in-vehicle unit arranged on an inner side of a vehicle glass of a target vehicle; a data processing component arranged on an outer side of the vehicle glass of the target vehicle, used to receive short-range data transmitted by the target in-vehicle unit according to at least one transmitting position, wherein the short-range data corresponding to each transmitting position in the at least one transmitting position is transmitted through the vehicle glass of the target vehicle; in a case that there is a transmitting position in the at least one transmitting position, in which a signal strength value of the corresponding short-range data is greater than or equal to a preset strength value, a target transmitting position is selected from the at least one transmitting position, wherein the target transmitting position is the transmitting position in the at least one transmitting position, in which a difference between the signal strength value of the corresponding short-range data and the preset strength value is the smallest; and sending first indication information to the target in-vehicle unit, the first indication information being used to instruct to set a transmitting position of the target in-vehicle unit as the target transmitting position; The data processing component is further configured to receive first short-range data transmitted by the target vehicle-mounted unit at a first transmission level, wherein the at least one transmission level includes the first transmission level; in a case where a signal strength value of the first short-range data is less than the preset strength value and the first transmission level is not a maximum transmission level in a preset group of transmission levels, repeatedly perform a first adjustment step until a first end condition is met, wherein, when performing the first adjustment step, the transmission level of the target vehicle-mounted unit is a current transmission level; send a first adjustment instruction to the target vehicle-mounted unit, wherein the first adjustment instruction is used to instruct to increase the transmission level of the target vehicle-mounted unit; receive second short-range data transmitted by the target vehicle-mounted unit at the increased current transmission level in response to the first adjustment instruction; and wherein the first end condition includes at least one of the following: the signal strength value of the second short-range data is greater than or equal to the preset strength value, and the increased current transmission level is equal to the maximum transmission level. The data processing component is further configured to, when adjusting the wake-up level and the receiving level of the target vehicle-mounted unit, send short-range data to the target vehicle-mounted unit through the detection module, and determine whether the wake-up level and the receiving level of the target vehicle-mounted unit need to be adjusted according to a receiving condition of the target vehicle-mounted unit; transmit fourth short-range data to the target vehicle-mounted unit at a second transmission level, wherein the fourth short-range data contains wake-up data used to wake up the target vehicle-mounted unit; in a case where no wake-up indication information transmitted by the target vehicle-mounted unit in response to the fourth short-range data is received, repeatedly perform a third adjustment step until a third end condition is met, wherein the wake-up indication information is used to indicate that the target vehicle-mounted unit is woken up by the wake-up data; send a third adjustment instruction to the target vehicle-mounted unit, wherein the third adjustment instruction is used to instruct to increase the wake-up level of the target vehicle-mounted unit; and transmit the fourth short-range data to the target vehicle-mounted unit at the second transmission level; and wherein the third end condition includes: the wake-up indication information transmitted by the target vehicle-mounted unit in response to the fourth short-range data is received, and the wake-up level of the target vehicle-mounted unit has been a maximum wake-up level of the target vehicle-mounted unit.

7. A computer readable storage medium, characterized in that, The computer-readable storage medium includes a stored program, wherein the program is executed to perform the method of any one of claims 1 to 5. 8.An electronic device comprising a memory and a processor, the electronic device comprising: The memory stores a computer program, and the processor is configured to execute the method of any one of claims 1 to 5 by using the computer program.

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