CN115963502A - Ultrasonic radar address writing method and device for vehicle application machine and storage medium - Google Patents
Ultrasonic radar address writing method and device for vehicle application machine and storage medium Download PDFInfo
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- CN115963502A CN115963502A CN202111193848.7A CN202111193848A CN115963502A CN 115963502 A CN115963502 A CN 115963502A CN 202111193848 A CN202111193848 A CN 202111193848A CN 115963502 A CN115963502 A CN 115963502A
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Abstract
The invention provides an ultrasonic radar address writing method and device and a storage medium of an application vehicle machine. The method comprises the following steps: activating a plurality of ultrasonic radars mounted on a vehicle; acquiring obstacle distance information detected by a plurality of ultrasonic radars, wherein obstacles are placed at a preset position relative to a vehicle; matching the obstacle distance information according to the corresponding relation between the pre-stored obstacle distance and the installation position, so as to obtain the installation positions of the plurality of ultrasonic radars; displaying confirmation prompt messages of the installation positions of the plurality of ultrasonic radars on a vehicle machine of the vehicle; and after receiving a confirmation instruction input by a user, writing a radar address corresponding to the installation position of each ultrasonic radar in the plurality of ultrasonic radars into the vehicle machine. According to the invention, an independent controller or a master control sensor is not needed, so that the wiring harness connection is simplified, and the cost is saved; the address writing of the ultrasonic radar can be completed quickly, and the method is simple and efficient.
Description
Technical Field
The embodiment of the invention relates to the technical field of automobile manufacturing, in particular to an ultrasonic radar address writing method and device and a storage medium applying a vehicle machine.
Background
At present, the front loading rate of the vehicle-mounted ultrasonic radar reaches 100%, the number of installed single vehicles is 3-12, the vehicle-mounted ultrasonic radar is high in measurement accuracy and stable in operation, and the vehicle-mounted ultrasonic radar has a temperature compensation function and is used for monitoring and alarming obstacles in a range of 15-250 CM in front of and behind a vehicle. The collision risk caused by the blind area of the vehicle is greatly avoided, and convenience is provided for a driver. However, at present, whether a host ultrasonic radar parking distance control system or a non-host ultrasonic radar parking distance control system exists, the installation position (i.e., address ID) of each ultrasonic radar on the vehicle is defined through a wire harness and a PIN (PIN foot).
There is a master ultrasonic park distance control system controller typically having 20 PIN legs and the sensor having 3PIN legs. And the installation position and the matching address of the sensor are confirmed by adopting the wiring harness connection of the controller PIN PIN and the sensor signal PIN PIN. Although the ultrasonic parking distance control system with the main machine uses the ultrasonic sensor with simple structure and low cost, a controller is needed, and the controller and the sensor are connected in a one-to-one manner, so that the wiring harness is complex.
A main control sensor of the mainframe-free ultrasonic parking distance control system usually has 6-8PIN PINs, other sensors are 4PIN PINs, and the installation position and the matching address of the sensor are confirmed through the connection of different PIN PINs of the main control sensor and PIN PIN wiring harnesses of signals of other sensors. The master control sensor of the host-free ultrasonic parking distance control system is often provided with a 6-8PIN PIN and an integrated MCU (microprogrammed control Unit) chip, the volume is large, the structure is complex, and the slave control sensor 4PIN PIN is designed to meet the requirement of the wire harness connection with the master control sensor. Hostless ultrasonic park distance control systems often require complex designs to reduce the need for master sensor PIN count.
Disclosure of Invention
In order to solve the above problems in the prior art, in a first aspect, an embodiment of the present invention provides an ultrasonic radar address writing method for a vehicle application machine, where the method includes: activating a plurality of ultrasonic radars mounted on a vehicle; acquiring obstacle distance information detected by the plurality of ultrasonic radars, wherein the obstacles are placed at a pre-designated position relative to the vehicle; matching the obstacle distance information according to a corresponding relation between the obstacle distance and the installation position stored in advance, so as to obtain the installation positions of the plurality of ultrasonic radars; displaying confirmation prompt messages of the installation positions of the plurality of ultrasonic radars on a vehicle machine of the vehicle; and after receiving a confirmation instruction input by a user, writing a radar address corresponding to the installation position of each ultrasonic radar in the plurality of ultrasonic radars into the vehicle machine.
In some embodiments, the method further comprises: displaying the online states of the plurality of ultrasonic radars on the vehicle machine; and after a reactivation command input by a user is received, reactivating the plurality of ultrasonic radars, and re-executing the steps of obtaining the obstacle distance information, matching the distance information and displaying a confirmation prompt message.
In some embodiments, 3 pins of each of the plurality of ultrasonic radars are respectively connected to a KL15 line, a local interconnect network bus, and a ground line of the vehicle machine.
In some embodiments, the method is adapted to be performed during front loading of the vehicle.
In some embodiments, the plurality of ultrasonic radars includes: and the ultrasonic radars are respectively arranged at the right rear position, the right middle position, the left middle position and the left rear position on a rear bumper of the vehicle.
In some embodiments, the obstacles include four obstacles each spaced apart by 20cm, 30cm, 40cm, and 50cm in the axial direction of the ultrasonic radar at the right rear, right center, left center, and left rear positions, respectively.
In some embodiments, the obstruction comprises a cylindrical obstruction 75mm in diameter and 1m high.
In a second aspect, an embodiment of the present invention provides an ultrasonic radar address writing apparatus using a vehicle, the apparatus including: an activation module for activating a plurality of ultrasonic radars mounted on a vehicle; the distance information acquisition module is used for acquiring distance information of obstacles detected by the ultrasonic radars, wherein the obstacles are placed at a preset position relative to the vehicle; the matching module is used for matching the obstacle distance information according to the corresponding relation between the pre-stored obstacle distance and the installation position, so that the installation positions of the plurality of ultrasonic radars are obtained; the prompt module is used for displaying a confirmation prompt message of the installation positions of the plurality of ultrasonic radars on a vehicle machine of the vehicle; and the writing module is used for writing the radar address corresponding to the installation position of each ultrasonic radar in the plurality of ultrasonic radars into the vehicle machine after receiving a confirmation instruction input by a user.
In some embodiments, 3 pins of each of the plurality of ultrasonic radars are respectively connected to a KL15 line, a local interconnect network bus, and a ground line of the vehicle.
In a third aspect, embodiments of the invention propose a storage medium storing machine-readable instructions which, when executed by a processor, perform a method according to any of the embodiments mentioned above.
The method, the device and the storage medium for writing the ultrasonic radar address of the vehicle application machine have the advantages that:
(1) The ultrasonic radar is activated by the vehicle machine to enter an address learning mode and complete address writing, and the parking distance control system does not need an independent controller or a main control sensor, so that the cost is saved due to the fact that the system controller or the main control sensor is omitted;
(2) The ultrasonic radar can use a 3PIN ultrasonic sensor with a simple structure, and the system has simple wiring harness connection, thereby simplifying wiring harness arrangement of the ultrasonic parking distance control system and saving cost on the other hand;
(3) The address writing-in of the ultrasonic radar can be completed quickly, a large number of working hours are saved, and the method is simple and efficient.
Drawings
The above and other objects, features and advantages of embodiments of the present invention will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the invention are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which:
fig. 1 is a flowchart illustrating an ultrasonic radar address writing method using a vehicle machine according to an embodiment of the present invention;
FIG. 2 shows a schematic connection diagram of an ultrasonic radar and a vehicle machine according to an embodiment of the invention;
FIG. 3 shows a schematic view of obstacle placement according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of the display content of the on-board computer according to the embodiment of the invention;
fig. 5 is a block diagram illustrating an ultrasonic radar address writing apparatus using a car machine according to an embodiment of the present invention.
In the drawings, the same or corresponding reference numerals indicate the same or corresponding parts.
Detailed Description
The principles and spirit of the present invention will be described with reference to a number of exemplary embodiments. It is understood that these embodiments are given solely for the purpose of enabling those skilled in the art to better understand and to practice the invention, and are not intended to limit the scope of the invention in any way.
In a first aspect, an embodiment of the present invention provides an ultrasonic radar address writing method using a vehicle machine. Referring to fig. 1, a flowchart of an ultrasonic radar address writing method 100 using a vehicle machine according to an embodiment of the present invention is shown. As shown in FIG. 1, the method 100 includes steps S101-S105.
In step S101, a plurality of ultrasonic radars (or ultrasonic sensors, sensors) mounted on a vehicle are activated. The plurality of ultrasonic radars may include an ultrasonic radar mounted on front and rear bumpers of the vehicle. For example, the ultrasonic radar is activated through an operation page of a parking distance control system installed on the vehicle machine to enter the address learning mode.
Referring to fig. 2, a schematic connection diagram of an ultrasonic radar and a vehicle machine according to an embodiment of the present invention is shown. As shown in fig. 2, 3 PINs (PIN PINs) of each of the plurality of ultrasonic radars are respectively connected to a KL15 line, a Local Interconnect Network (LIN) bus, and a Ground (GND) of the vehicle, that is, connected to the KL15, LIN, and GND wire harnesses in a parallel manner. In practice, 4 to 12 ultrasonic radars can be installed according to different vehicle types, a vehicle machine and an ultrasonic sensor are communicated through LIN, and the vehicle machine is connected with CANH (controller area network-high) and CANL (controller area network-low).
In step S102, obstacle distance information detected by a plurality of ultrasonic radars, in which an obstacle is placed at a position designated in advance with respect to a vehicle, is acquired. The obstacle may be, for example, a rectangular pillar obstacle placed in front and rear of the front and rear bumpers.
Referring to fig. 3, a schematic view of obstacle placement is shown, according to an embodiment of the present invention. Taking the 4-lane, parking distance control system as an example, the plurality of ultrasonic radars includes ultrasonic radars installed at right rear, right center, left center, and left rear positions, respectively, on a rear bumper of the vehicle. The vehicle is laid behind a distance marking cloth, in which each square can be, for example, 0.1 × 0.1m. Cylindrical obstacles with the diameter of 75mm and the height of 1m are respectively placed according to the length of 20cm, 30cm, 40cm and 50cm in the axial direction of the ultrasonic radar at the rear right back, the right middle, the left middle and the left back.
In step S103, the obstacle distance information is matched based on the correspondence relationship between the obstacle distance and the installation position stored in advance, and the installation positions of the plurality of ultrasonic radars are obtained. Thus, address information is defined for each ultrasonic radar by controlling the difference in the distance from the obstacle to the ultrasonic radar.
The ultrasonic radar locks the actual installation position of the ultrasonic radar through the corresponding relation between the distance of the obstacle and the installation position in the obstacle distance data matching learning mode detected by the ultrasonic radar.
In step S104, a confirmation prompt message of the installation positions of the plurality of ultrasonic radars is displayed on the vehicle-mounted device of the vehicle.
In step S105, after receiving the confirmation instruction input by the user, the radar address corresponding to the installation position of each of the plurality of ultrasonic radars is written into the in-vehicle device. And confirming the ultrasonic radar address identification result through the vehicle terminal, completing address writing, and then exiting the learning mode.
The ultrasonic radar address writing method using the vehicle machine provided by the embodiment of the invention can complete address learning and writing on the parking distance control system sensors of 4-12 channels at the same time.
As an embodiment of the present invention, the method may further include: displaying the online states of the plurality of ultrasonic radars on the vehicle machine; and after a reactivation command input by a user is received, reactivating the plurality of ultrasonic radars, and re-executing the steps of obstacle distance information acquisition, distance information matching and confirmation prompt message display.
Referring to fig. 4, a schematic diagram of the display content of the in-vehicle machine according to the embodiment of the invention is shown.
In the example of the display content shown in fig. 4, the in-vehicle page displays the address learning result and the state of the ultrasonic radar, confirms that all radars are in the online state and the address learning result is correct, and clicks to confirm that the address learning is finished. If the radar displays off-line, the radar wiring harness and the radar wiring harness are required to be checked to determine whether faults exist. If the radar is normally on-line but the address learning result is wrong, whether the obstacle is placed in the axial direction of the ultrasonic radar or not and whether the distance deviates or not needs to be checked. Click reactivation after calibration address learning is performed again.
As an embodiment of the invention, the method is adapted to be performed during front loading of the vehicle. In the front-mounted process of the vehicle, the barrier can be fixedly placed at a certain position, after the vehicle reaches the designated position, the address writing of the ultrasonic radar can be quickly completed within a few seconds, a large amount of working hours are saved, and the method is simple and efficient.
The ultrasonic radar address writing method of the application vehicle machine provided by the embodiment of the invention has the beneficial effects that:
(1) The ultrasonic radar is activated by the vehicle machine to enter an address learning mode and complete address writing, and the parking distance control system does not need an independent controller or a main control sensor, so that the cost is saved due to the fact that the system controller or the main control sensor is omitted;
(2) The ultrasonic radar can use a 3PIN ultrasonic sensor with a simple structure, the wiring harness connection of the system is simple, the wiring harness arrangement of the ultrasonic parking distance control system is simplified, and the cost is saved by simplifying the wiring harness connection;
(3) The address writing of the ultrasonic radar can be completed quickly, a large amount of working hours are saved, and the method is simple and efficient.
In a second aspect, an embodiment of the present invention provides an ultrasonic radar address writing device applied to a vehicle. Referring to fig. 5, there is shown a block diagram of an ultrasonic radar address writing apparatus using a car machine according to an embodiment of the present invention. As shown in fig. 5, the ultrasonic radar address writing device of the vehicle application machine may include: the device comprises an activation module, a distance information acquisition module, a matching module, a prompt module and a write-in module.
The activation module may be for activating a plurality of ultrasonic radars mounted on a vehicle.
And the distance information acquisition module can be used for acquiring the distance information of the obstacles detected by the plurality of ultrasonic radars, wherein the obstacles are placed at the preset positions relative to the vehicle.
And the matching module can be used for matching the obstacle distance information according to the corresponding relation between the pre-stored obstacle distance and the installation position, so that the installation positions of the ultrasonic radars are obtained.
And the prompt module can be used for displaying a confirmation prompt message of the installation positions of the ultrasonic radars on a vehicle machine of the vehicle.
And the writing module can be used for writing the radar address corresponding to the installation position of each ultrasonic radar in the plurality of ultrasonic radars into the vehicle machine after receiving the confirmation instruction input by the user.
As one embodiment of the invention, 3 pins of each ultrasonic radar in a plurality of ultrasonic radars are respectively connected with KL15 lines, a local area interconnection network bus and a ground line of a vehicle machine.
It should be noted that the steps executed by each module in the ultrasound radar address writing device of the vehicle application machine correspond to the steps of the ultrasound radar address writing method of the vehicle application machine described above one to one, and please refer to the above description about the method steps for the specific implementation and technical effects.
Embodiments of the present invention also provide a storage medium storing machine-readable instructions which, when executed by a processor, perform a method as described in any of the above embodiments.
The invention provides a method and a device for writing in an ultrasonic radar address by using a vehicle machine, and a storage medium, which are related to an automobile parking distance control system and are a technical scheme for activating an ultrasonic radar to enter a learning mode by using the vehicle machine to complete the writing in of the radar address. According to the scheme, the single controller or the master control sensor of the parking distance control system is saved, and the wiring harness connection is simplified, so that the cost is saved.
The foregoing description of the embodiments of the invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or to limit the invention to the precise forms disclosed. It will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed as the best mode contemplated for carrying out this invention, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. An ultrasonic radar address writing method applied to a vehicle machine is characterized by comprising the following steps:
activating a plurality of ultrasonic radars mounted on a vehicle;
acquiring obstacle distance information detected by the plurality of ultrasonic radars, wherein the obstacles are placed at a pre-designated position relative to the vehicle;
matching the obstacle distance information according to a pre-stored corresponding relation between the obstacle distance and the installation position, so as to obtain the installation positions of the plurality of ultrasonic radars;
displaying a confirmation prompt message of the installation positions of the plurality of ultrasonic radars on a vehicle machine of the vehicle;
and after receiving a confirmation instruction input by a user, writing a radar address corresponding to the installation position of each ultrasonic radar in the plurality of ultrasonic radars into the vehicle machine.
2. The method of claim 1, further comprising:
displaying the online states of the plurality of ultrasonic radars on the vehicle machine;
and after a reactivation command input by a user is received, reactivating the plurality of ultrasonic radars, and re-executing the steps of obtaining the obstacle distance information, matching the distance information and displaying a confirmation prompt message.
3. The method according to claim 1, wherein 3 pins of each of the plurality of ultrasonic radars are connected to KL15 line, local interconnect network bus and ground line of the vehicle machine, respectively.
4. The method of claim 1, wherein the method is adapted to be performed during front loading of the vehicle.
5. The method of claim 1, wherein the plurality of ultrasonic radars comprises: and the ultrasonic radars are respectively arranged at the right rear position, the right middle position, the left middle position and the left rear position on a rear bumper of the vehicle.
6. The method according to claim 5, wherein the obstacles include four obstacles each spaced apart by 20cm, 30cm, 40cm and 50cm in an axial direction of the ultrasonic radar at the right rear, right center, left center and left rear positions, respectively.
7. The method of claim 1, wherein the obstruction comprises a cylindrical obstruction 75mm in diameter and 1m in height.
8. The utility model provides an use ultrasonic radar address write device of car machine which characterized in that, the device includes:
an activation module for activating a plurality of ultrasonic radars mounted on a vehicle;
the distance information acquisition module is used for acquiring distance information of obstacles detected by the plurality of ultrasonic radars, wherein the obstacles are placed at a preset position relative to the vehicle;
the matching module is used for matching the obstacle distance information according to the corresponding relation between the pre-stored obstacle distance and the installation position, so that the installation positions of the plurality of ultrasonic radars are obtained;
the prompt module is used for displaying a confirmation prompt message of the installation positions of the plurality of ultrasonic radars on a vehicle machine of the vehicle;
and the writing module is used for writing the radar address corresponding to the installation position of each ultrasonic radar in the plurality of ultrasonic radars into the vehicle machine after receiving a confirmation instruction input by a user.
9. The apparatus according to claim 7, wherein 3 pins of each of the plurality of ultrasonic radars are connected to the KL15 line, the local interconnect network bus and the ground line of the vehicle.
10. A storage medium storing machine readable instructions which, when executed by a processor, perform the method of any one of claims 1-7.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116946010A (en) * | 2023-09-19 | 2023-10-27 | 浙江吉利控股集团有限公司 | Mute whistle method based on ultrasonic signal |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116946010A (en) * | 2023-09-19 | 2023-10-27 | 浙江吉利控股集团有限公司 | Mute whistle method based on ultrasonic signal |
| CN116946010B (en) * | 2023-09-19 | 2023-12-26 | 浙江吉利控股集团有限公司 | Mute whistle method based on ultrasonic signal |
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