CN220171228U - Vehicle-mounted mainframe-free radar system and vehicle-mounted radar calibration system - Google Patents
Vehicle-mounted mainframe-free radar system and vehicle-mounted radar calibration system Download PDFInfo
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- CN220171228U CN220171228U CN202223288758.9U CN202223288758U CN220171228U CN 220171228 U CN220171228 U CN 220171228U CN 202223288758 U CN202223288758 U CN 202223288758U CN 220171228 U CN220171228 U CN 220171228U
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Abstract
The embodiment of the utility model provides a vehicle-mounted host-free radar system and a vehicle-mounted radar calibration system, wherein the vehicle-mounted host-free radar system comprises a plurality of radar probes and response equipment, each radar probe comprises a VCC pin, a GND pin and a DATA pin, the VCC pins of each radar probe are connected with a power supply through a power line, the GND pin is connected with a grounding end through a grounding line, the DATA pins of each radar probe are connected with each other, and each radar probe is connected with the response equipment through a DATA line only by the DATA pin respectively; one of the radar probes calibrated as a predetermined identity is identified as a master radar probe, the remaining radar probes are identified as slave radar probes, and the master radar probe receives and analyzes the detection data of the radar probes and sends an alarm signal to the response device when the detection data of the radar probes meet an alarm condition. The radar probes of the vehicle-mounted host-free radar system can determine the identity of each radar probe conveniently and quickly with low cost without arranging an ID pin.
Description
Technical Field
The embodiment of the utility model relates to the technical field of motor vehicle radars, in particular to a vehicle-mounted host-free radar system and a vehicle-mounted radar calibration system.
Background
At present, the existing vehicle-mounted mainframe-free radar system of the motor vehicle generally adopts a plurality of radar probes to detect obstacle information, and in order to conveniently determine the detection direction of each radar probe and radar detection data in the detection direction, each radar probe installed on the motor vehicle needs to be configured necessarily before delivery so as to determine the unique corresponding identity of each radar probe.
The prior vehicle-mounted host-free radar system realizes identity identification by adopting a radar probe with an ID pin, specifically, the radar probe comprises a DATA pin, a VCC pin, a GND pin and an ID pin, when the radar probe is applied, different wiring modes are adopted for the ID pin of each radar probe to distribute different identity marks for each radar probe, for example, the ID pin is respectively connected to a ground wire, a power wire, a DATA wire and a suspension, so that when each radar probe is electrified and started, a response device can identify the identity mark by reading the wiring state of the ID pin of each radar probe.
However, the inventor of the present utility model has found that, in practical application, the above-mentioned vehicle-mounted non-host radar system still has the following drawbacks: the ID pin is required to be additionally arranged on the radar probe, so that the design and manufacturing cost of the radar probe are increased, the corresponding plug connector is larger in size, the layout setting of the radar probe is affected, in addition, an independent ID pin connecting line is required, 4 connecting lines are required for the wire harness externally connected with the radar probe, and the wire harness cost of the whole vehicle is increased.
Disclosure of Invention
The technical problem to be solved by the embodiment of the utility model is to provide a vehicle-mounted mainframe-free radar system which can calibrate each radar probe installed on a motor vehicle in a low-cost and convenient manner to determine the identity of each radar probe.
The technical problem to be further solved by the embodiment of the utility model is to provide a vehicle-mounted radar calibration system which can calibrate each radar probe installed on a motor vehicle in a low-cost and convenient manner to determine the identity of each radar probe.
The technical problem to be further solved by the embodiment of the utility model is to provide a vehicle-mounted radar calibration method which can calibrate each radar probe installed on a motor vehicle in a low-cost and convenient manner to determine the identity of each radar probe.
In order to solve the technical problems, the embodiment of the utility model adopts the following technical scheme: a vehicle-mounted off-host radar system comprising a plurality of radar probes assembled at predetermined locations on a motor vehicle and a response device for connecting each of the radar probes, each of the radar probes comprising three pins: the system comprises VCC pins, GND pins and DATA pins, wherein the VCC pins of all the radar probes are connected with a vehicle-mounted power supply of a motor vehicle through a power line, the GND pins are connected with a grounding end of the motor vehicle through a grounding line, the DATA pins of all the radar probes are connected with each other, and all the radar probes are connected with the response equipment through DATA lines only through the DATA pins respectively; one of the radar probes calibrated as a predetermined identity is identified as a master radar probe, the remaining radar probes are identified as slave radar probes, and the master radar probe receives and analyzes the detection data of itself and each of the slave radar probes and sends an alarm signal to the response device when the detection data of any one of the radar probes meets an alarm condition.
Further, the response device is also multiplexed as a calibration controller for performing calibration control of the radar probe.
Further, the response device includes:
the DATA transmission port is connected with the DATA pins of the radar probes in a two-way communication manner through DATA lines;
the input unit is used for inputting configuration codes containing the types of the motor vehicles, the quantity of radar probes corresponding to the types of the motor vehicles and parameter information and an alarm strategy;
the storage unit is connected with the input unit and used for pre-storing the configuration code and the alarm strategy;
the data processing unit is respectively connected with the storage unit and the data transmission port and is used for sending the configuration code to the radar probe after receiving the configuration information request from the radar probe and correspondingly generating the alarm instruction according to the pre-stored alarm strategy when receiving the alarm signal; and
and the alarm unit is connected with the data processing unit and is used for responding to the alarm instruction and alarming in a preset mode.
Further, the response device further includes:
and the display unit is connected with the data processing unit and used for displaying the detection data of each radar probe received and transferred by the data processing unit in a visual mode.
Further, the response device is an instrument module or a body controller built in the motor vehicle.
In order to solve the technical problems to be further solved, the embodiment of the utility model also adopts the following technical scheme: a vehicle radar calibration system comprising: the radar probe calibration system comprises a calibration site for fixed-point parking of a motor vehicle provided with a plurality of radar probes to be calibrated, a plurality of calibration pieces and a calibration controller for connecting each radar probe, wherein the calibration site comprises a motor vehicle parking area positioned in the middle and a plurality of detection areas which surround the motor vehicle parking area and are arranged in one-to-one correspondence with the radar probes, each detection area is movably provided with one calibration piece, the distance between each calibration piece and the corresponding radar probe is different, each radar probe is connected with the calibration controller through a DATA line only by a DATA pin, and the calibration controller is used for sending a calibration instruction to enable the radar probes to respectively detect the distance of each corresponding calibration piece, determine each unique identity of each radar probe according to the distance detection value of the corresponding calibration piece fed back by each radar probe and a pre-stored calibration piece identification code and distance relation table, and write the identity into a corresponding power-down nonvolatile memory of the radar probe.
Further, wave-absorbing partition walls are arranged at the boundary between any two adjacent detection areas and at one end, far away from the motor vehicle parking area, of each detection area.
Further, the calibration controller is an instrument module or a vehicle body controller which is arranged in the motor vehicle.
By adopting the technical scheme, the embodiment of the utility model has at least the following beneficial effects: according to the embodiment of the utility model, the ID pin is omitted on each radar probe, the VCC pin, the GND pin and the DATA pin are correspondingly connected with the power line, the ground line and the DATA line respectively on the basis of reserving the VCC pin, the GND pin and the DATA pin, and the unique identity of each radar probe is calibrated through the vehicle-mounted radar calibration system, so that the radar probe does not need to be provided with the ID pin and related circuits, the wire harness is used, the size of the plug connector is reduced, and the wire harness cost of the whole vehicle and the design cost of the radar probe are reduced. In addition, the radar probe with a specific identity mark is set as the master radar probe, and other radar probes are set as slave radar probes, so that the master radar probe has the function of dispatching other slave radar probes, and the functions of a controller and a common sensor are integrated with the master radar probe by the aid of the vehicle-mounted mainframe-free radar system.
According to the embodiment of the utility model, the motor vehicle parking area and the detection area are arranged in the calibration field to respectively park the motor vehicle and place the calibration pieces which are configured in one-to-one correspondence with the radar probes, and the calibration controller is also configured to correspondingly connect all the radar probes to be calibrated of the motor vehicle through the DATA wires only by the DATA pins, so that the distance between each calibration piece and the corresponding radar probe can be regulated to be different, the distance between the corresponding calibration piece is detected through each radar probe, and the calibration controller can determine the identification code of the calibration piece which is respectively and correspondingly arranged for each radar probe according to the distance detection value fed back by each radar probe and the pre-stored calibration piece identification code and distance relation table. And further writing the identity mark into a corresponding power-down nonvolatile memory of the radar probe, so that when the corresponding radar probe is started in the running process of the motor vehicle, each radar probe automatically reads and uses the corresponding identity mark from the power-down nonvolatile memory. Compared with the traditional mode, the vehicle-mounted radar calibration system is used for calibrating all radar probes of the vehicle-mounted host-free radar system, the corresponding radar probes of the vehicle-mounted host-free radar system can conveniently realize the function of distributing identity marks to all radar probes without arranging ID pins, and the wiring harness cost of the whole vehicle and the design cost of the radar probes are effectively reduced.
Drawings
FIG. 1 is a schematic diagram of an alternate embodiment of the on-board off-host radar system of the present utility model including 4 radar probes.
FIG. 2 is a schematic diagram of an alternate embodiment of the in-vehicle radar calibration system of the present utility model.
Fig. 3 is a schematic flow chart of a vehicle radar calibration method of the vehicle radar calibration system provided by the utility model.
Fig. 4 is a schematic flow chart of another vehicle radar calibration method of the vehicle radar calibration system provided by the utility model.
Detailed Description
The utility model will be described in further detail with reference to the drawings and the specific examples. It should be understood that the following exemplary embodiments and descriptions are only for the purpose of illustrating the utility model and are not to be construed as limiting the utility model, and that the embodiments and features of the embodiments of the utility model may be combined with one another without conflict.
As shown in fig. 1 and 2, an alternative embodiment of the present utility model provides a vehicle-mounted mainframe-less radar system, which includes a plurality of radar probes 1 assembled at predetermined positions on a motor vehicle 100 and a response device 6 for connecting each of the radar probes 1, each of the radar probes 1 including three pins: a VCC pin, a GND pin, and a DATA pin, wherein the VCC pin of each radar probe 1 is connected to a vehicle-mounted power supply of the motor vehicle 100 through a power line 5, the GND pin is connected to a ground terminal of the motor vehicle 100 through a ground line 7, the DATA pins of each radar probe 1 are connected to each other, and each radar probe 1 is connected to the response device 6 through a DATA line 9 only by the DATA pin, respectively; one of the radar probes 1 calibrated as a predetermined identity is identified as a master radar probe 1a, the remaining radar probes 1 are identified as slave radar probes 1b, the master radar probe 1a receives and analyzes the detection data of itself and each of the slave radar probes 1b and sends an alarm signal to the response device 6 when the detection data of any one of the radar probes 1 meets an alarm condition.
According to the embodiment of the utility model, the ID pins are canceled on each radar probe 1, the VCC pins, the GND pins and the DATA pins are correspondingly connected with the power line 5, the grounding line 7 and the DATA line 9 respectively on the basis of reserving the VCC pins, the GND pins and the DATA pins, and the unique identity of each radar probe 1 is calibrated by the vehicle-mounted radar calibration system, so that the radar probes 1 do not need to be provided with the ID pins and related circuits, the wire harness use is reduced, the size of the plug connector is reduced, and the wire harness cost of the whole vehicle and the design cost of the radar probes 1 are reduced. After the vehicle-mounted radar calibration system finishes the calibration work of each radar probe 1 of the vehicle-mounted host-free radar system, the radar probe 1 with a certain specific identity mark is set as a master radar probe 1a, and other radar probes 1 are set as slave radar probes 1b, so that the master radar probe 1a has the function of dispatching other slave radar probes 1b, specifically, the master radar probe 1a can simultaneously receive the barrier information acquired by the slave radar probe 1b and send a control instruction to the slave radar probe 1b, and the master radar probe 1a is used for analyzing all the acquired barrier information and then sending an alarm instruction to the response equipment 6. Therefore, by arranging the vehicle-mounted mainframe-free radar system, the main radar probe 1a integrates the functions of a controller and a common sensor, and compared with a mainframe radar system, one controller part is omitted, and certain space can be saved in arrangement and installation, so that the arrangement is simpler and more convenient. In particular implementations, the responsive action that may be taken by the responsive device 6 includes an alert tone, a distance of an obstacle from the vehicle or a display interface of an interval, and the like.
In an alternative embodiment of the utility model, as shown in fig. 1 and 2, the response device 6 is also multiplexed to the calibration controller 4 which performs calibration control of the radar probe 1. In this embodiment, the response device 6 may also be used as a calibration controller 4 for sending a calibration instruction to the radar probe 1, and by means of the existing motor vehicle device, the radar probe 1 is conveniently calibrated, so that the operability is strong, and the use cost of the radar probe 1 calibration is effectively reduced. In practical application, when the response device 6 is multiplexed into the calibration controller 4 for performing calibration control on the radar probe 1, the storage unit 63 pre-stores the calibration piece identification code and the distance relation table, so that the data processing unit 64 determines each unique identity of the radar probe 1 according to the distance detection value of the corresponding calibration piece 3 fed back by each radar probe 1 and the pre-stored calibration piece identification code and distance relation table, and writes the identity into the power-down nonvolatile memory 11 of the corresponding radar probe 1, thereby realizing the calibration process of each radar probe 1 and improving the universality of the response device 6.
In an alternative embodiment of the utility model, as shown in fig. 1, the response device 6 comprises:
a DATA transmission port 61 establishing a bidirectional communication connection with the DATA pin of each of the radar probes 1 through a DATA line 9;
an input unit 62 for inputting configuration codes including the vehicle type of the motor vehicle 100 and the number and parameter information of the radar probes 1 corresponding to the vehicle type and the alarm strategy;
a storage unit 63, connected to the input unit 62, for pre-storing the configuration code and the alarm policy;
a data processing unit 64, respectively connected to the storage unit 63 and the data transmission port 61, and configured to send the configuration code to the radar probe 1 after receiving a configuration information request from the radar probe 1, and correspondingly generate the alarm instruction according to the pre-stored alarm policy when receiving the alarm signal; and
an alarm unit 65, connected to the data processing unit 64, for giving an alarm in a predetermined manner in response to the alarm instruction.
In this embodiment, the configuration codes including the vehicle type of the motor vehicle 100 and the number and parameter information of the radar probes 1 corresponding to the vehicle type are pre-stored in the storage unit 63, and the configuration codes are sent to the main radar probe 1a after the data processing unit 64 receives the configuration information request from the radar probe 1a, so as to initialize the main radar probe 1a, so that different configurations can be performed according to different vehicle types of the motor vehicle 100, and the universality of the radar probe 1 is improved. The alarm strategy is pre-stored in the storage unit 63, and the alarm strategy can set different alarm modes, levels, time lengths and the like according to the detection data of the alarm as required, so that the alarm content of the radar detection is richer, and the attention of a driver is conveniently reminded. And the alarm unit 65 is set to alarm when the distance detection value of any obstacle detected by the radar probe 1 is smaller than a preset threshold value, so that a driver is reminded, and the practicability of obstacle detection is ensured.
In an alternative embodiment of the present utility model, as shown in fig. 1, the responding device 6 further includes:
and a display unit 66, connected to the data processing unit 64, for visually displaying the detection data of each radar probe 1 received and transferred by the data processing unit 64. In this embodiment, the display unit 66 is further provided to display the distance or section between the obstacle and the vehicle, and in addition, the fault display can be performed when any one of the radar probes 1 fails, so as to realize self-detection of the radar probe 1, thereby facilitating the driver to know the existence of the fault and maintain in time.
In an alternative embodiment of the utility model, as shown in fig. 1, the response device 6 is an instrument module or body controller built into the motor vehicle. In this embodiment, the response device 6 adopts an instrument module or a Body Controller (BCM) built in the motor vehicle, and sends an alarm instruction to the instrument module or the Body Controller (BCM) through the main radar probe 1a to perform a corresponding alarm action, and by adopting the above-mentioned existing motor vehicle 100 device, the design cost is saved under the condition of unchanged function.
As shown in fig. 1 and 2, another alternative embodiment of the present utility model further provides a vehicle radar calibration system, including: the motor vehicle 100 provided with a plurality of radar probes 1 to be calibrated is provided with a calibration site for fixed-point parking, a plurality of calibration pieces 3 and a calibration controller 4 for connecting each radar probe 1, wherein the calibration site comprises a motor vehicle parking area 21 positioned in the middle and a plurality of detection areas 22 which surround the motor vehicle parking area 21 and are arranged in a one-to-one correspondence with the radar probes 1, one calibration piece 3 is movably arranged in each detection area 22, the distance between each calibration piece 3 and the corresponding radar probe 1 is different, each radar probe 1 is respectively connected with the calibration controller 4 only through a DATA pin through a DATA line 9, and the calibration controller 4 is used for sending a calibration command to enable the radar probes 1 to respectively detect the distance of the corresponding calibration piece 3, and determining the unique identity of each radar probe 1 according to the distance detection value of the corresponding calibration piece 3 fed back by each radar probe 1 and a pre-stored calibration piece identification code and distance relation table, and writing the identity into the corresponding nonvolatile memory 11 of the radar probe 1.
According to the embodiment of the utility model, the motor vehicle parking area 21 and the detection area 22 are arranged in the calibration field to respectively park the motor vehicle 100 and place the calibration pieces 3 which are configured in one-to-one correspondence with the radar probes 1, and the calibration controller 4 is also configured to correspondingly connect each radar probe 1 to be calibrated of the motor vehicle 100 through the DATA wire 9 only through the DATA pin, so that the distance between each calibration piece 3 and the corresponding radar probe 1 can be regulated to be different, the distance between the corresponding calibration piece 3 is detected through each radar probe 1, and the calibration controller can determine the identification code of the calibration piece which is respectively and correspondingly arranged for each radar probe 1 according to the distance detection value fed back by each radar probe 1 and the pre-stored relationship table of the identification code of the calibration piece and the distance. And further writes the identity into the corresponding power-down nonvolatile memory 11 of the radar probe 1, so that when the corresponding radar probe 1 is started in the running process of the motor vehicle 100, each radar probe 1 automatically reads and uses the corresponding identity from the power-down nonvolatile memory 11. Compared with the traditional mode, the vehicle-mounted radar calibration system is used for calibrating all radar probes of the vehicle-mounted non-host radar system, the corresponding radar probes 1 adopted by the vehicle-mounted non-host radar system can conveniently realize the function of distributing identity marks to all the radar probes 1 without arranging ID pins, and the wiring harness cost of the whole vehicle and the design cost of the radar probes 1 are effectively reduced.
After the whole vehicle is off line, a plurality of radar probes 1 to be calibrated can be respectively arranged at the head and/or tail and/or side of the motor vehicle 100, a plurality of detection areas 22 are respectively and correspondingly arranged towards the position direction of the motor vehicle 100 where the radar probes 1 are positioned, and after the standby motor vehicle 100 is parked in the motor vehicle parking area 21, a plurality of radar probes 1 at different positions of the motor vehicle 100 can be calibrated at the same time. In the specific implementation, the calibration piece 3 is selected as a PVC pipe, so that the material selection is convenient.
In an alternative embodiment of the present utility model, as shown in fig. 2, a wave-absorbing partition wall 221 is provided at the boundary between any two adjacent detection zones 22 and at the end of each detection zone 22 remote from the motor vehicle parking zone 21. In this embodiment, the wave-absorbing isolation walls 221 are made of wave-absorbing materials, and the detection areas 22 defined by the wave-absorbing isolation walls 221 can be effectively used for isolating external objects, preventing the external objects from reflecting ultrasonic signals sent by the radar probe 1, and further improving the calibration accuracy of the radar probe 1.
In an alternative embodiment of the present utility model, as shown in fig. 2, the calibration controller 4 is an instrument module or a body controller built in the motor vehicle 100. In the present embodiment, the calibration command is sent to each radar probe 1 by means of an instrument module or a Body Controller (BCM) built in the motor vehicle 100, and by adopting the above-described conventional motor vehicle device, the design cost is saved while the implementation function is unchanged. In addition, the calibration controller 4 may be an external terminal device, such as an industrial personal computer, a mobile control terminal, or the like, that is connected to the radar probe 1 and is connected to the motor vehicle 100.
As shown in fig. 1 to 3, the specific flow steps of calibrating each radar probe 1 of the vehicle-mounted radar calibration system by adopting the vehicle-mounted radar calibration system are as follows:
s11: parking the motor vehicle 100 in a motor vehicle parking area 21 of a calibration site;
s12: adjusting the distance between each calibration piece 3 and each corresponding radar probe 1 to be different according to a preset calibration piece identification code and distance relation table, and storing the calibration piece identification code and distance relation table into a calibration controller 4;
s13: the calibration controller 4 sends out a calibration command to enable each radar probe 1 to acquire a distance detection value of each corresponding calibration piece 3 and receive the distance detection value fed back by each radar probe 1; and
s14: and determining the unique identity of each radar probe 1 according to the distance detection value fed back by each radar probe 1 and the relationship table of the identification code and the distance of the calibration piece, and writing the identity into the corresponding power-down nonvolatile memory 11 of the radar probe 1.
Through the above-mentioned process, the embodiment can pre-determine the calibration piece identification code and the distance relation table, then set the calibration piece 3 corresponding to each radar probe 1 on the parked automobile 100 according to the calibration piece identification code and the distance relation table at different distances, and store the calibration piece identification code and the distance relation table into the calibration controller 4, so that the calibration controller 4 can control each radar probe 1 to measure the distance detection value of each corresponding calibration piece 3, and determine each calibration piece identification code corresponding to each radar probe 1 according to the distance detection value and the calibration piece identification code and the distance relation table after obtaining the distance detection value, and the calibration pieces and the radar probes 1 are set in one-to-one correspondence, thereby determining the unique identity of each radar probe 1. And by writing the identity mark into the corresponding power-down nonvolatile memory 11 of the radar probe 1, when the corresponding radar probe 1 is started in the running process of the motor vehicle, each radar probe 1 automatically reads and uses the corresponding identity mark from the power-down nonvolatile memory 11. Compared with the traditional mode, the method of the embodiment can realize the function of distributing the identity to each radar probe 1 without arranging the ID pin by adopting the radar probe 1 of the vehicle-mounted host-free radar system, thereby reducing the cost of the whole vehicle wire harness and the design cost of the radar probe 1.
As shown in fig. 1, 2 and 4, with the above-mentioned vehicle radar calibration system, each radar probe 1 of the vehicle radar system may be calibrated according to the following steps:
s21: parking the motor vehicle 100 in a motor vehicle parking area 21 of a calibration site;
s22: the distance between each calibration piece 3 and each corresponding radar probe 1 is regulated to be different, the distance between each calibration piece 3 and each corresponding radar probe 1 is measured, and the identification code of each calibration piece 3 and the distance between each calibration piece 3 and the corresponding radar probe 1 are correspondingly recorded into the calibration controller 4 to generate a calibration piece identification code and distance relation table;
s23: the calibration controller 4 sends out a calibration command to enable each radar probe 1 to acquire a distance detection value of each corresponding calibration piece 3 and receive the distance detection value fed back by each radar probe 1; and
s24: and determining the unique identity of each radar probe 1 according to the distance detection value fed back by each radar probe 1 and the relationship table of the identification code and the distance of the calibration piece, and writing the identity into the corresponding power-down nonvolatile memory 11 of the radar probe 1.
Through the above-mentioned procedure, the embodiment can firstly set the corresponding calibration parts 3 of each radar probe 1 to be calibrated on the parked automobile 100 at different distances and measure the distance between each calibration part 3 and the corresponding radar probe 1, and then correspondingly record the identification code of each calibration part 3 and the distance between the corresponding radar probe 1 into the calibration controller 4 to generate a calibration part identification code and distance relation table, which is more convenient in specific operation. Therefore, the calibration controller 4 can control each radar probe 1 to measure the distance detection value of the corresponding calibration piece 3, and determine the corresponding calibration piece identification code of each radar probe 1 according to the distance detection value and the calibration piece identification code and distance relation table after obtaining the distance detection value, wherein the calibration pieces are arranged in a one-to-one correspondence with the radar probes 1, and then can determine the unique identity of each radar probe 1. And by writing the identity mark into the corresponding power-down nonvolatile memory 11 of the radar probe 1, when the corresponding radar probe 1 is started in the running process of the motor vehicle, each radar probe 1 automatically reads and uses the corresponding identity mark from the power-down nonvolatile memory 11. Compared with the traditional mode, the method of the embodiment can realize the function of distributing the identity to each radar probe 1 without arranging the ID pin by adopting the radar probe 1 of the vehicle-mounted host-free radar system, thereby reducing the cost of the whole vehicle wire harness and the design cost of the radar probe 1.
The embodiments of the present utility model have been described above with reference to the accompanying drawings, but the present utility model is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present utility model and the scope of the claims, which are all within the scope of the present utility model.
Claims (8)
1. A vehicle-mounted host-free radar system comprising a plurality of radar probes assembled at predetermined locations on a motor vehicle and a response device for connecting each of the radar probes, wherein each of the radar probes comprises three pins: the system comprises VCC pins, GND pins and DATA pins, wherein the VCC pins of all the radar probes are connected with a vehicle-mounted power supply of a motor vehicle through a power line, the GND pins are connected with a grounding end of the motor vehicle through a grounding line, the DATA pins of all the radar probes are connected with each other, and all the radar probes are connected with the response equipment through DATA lines only through the DATA pins respectively; one of the radar probes calibrated as a predetermined identity is identified as a master radar probe, the remaining radar probes are identified as slave radar probes, and the master radar probe receives and analyzes the detection data of itself and each of the slave radar probes and sends an alarm signal to the response device when the detection data of any one of the radar probes meets an alarm condition.
2. The vehicle-mounted host-free radar system of claim 1, wherein the response device is further multiplexed as a calibration controller for performing calibration control of the radar probe.
3. The vehicle-mounted headless radar system according to claim 1 or 2, wherein the response device includes:
the DATA transmission port is connected with the DATA pins of the radar probes in a two-way communication manner through DATA lines;
the input unit is used for inputting configuration codes containing the types of the motor vehicles, the quantity of radar probes corresponding to the types of the motor vehicles and parameter information and an alarm strategy;
the storage unit is connected with the input unit and used for pre-storing the configuration code and the alarm strategy;
the data processing unit is respectively connected with the storage unit and the data transmission port and is used for sending the configuration code to the radar probe after receiving the configuration information request from the radar probe and correspondingly generating an alarm instruction according to the pre-stored alarm strategy when receiving the alarm signal; and
and the alarm unit is connected with the data processing unit and is used for responding to the alarm instruction and alarming in a preset mode.
4. The vehicle-mounted mainframe-less radar system of claim 3, wherein the response device further comprises:
and the display unit is connected with the data processing unit and used for displaying the detection data of each radar probe received and transferred by the data processing unit in a visual mode.
5. The vehicle-mounted, host-free radar system of claim 1, wherein the response device is an instrument module or a body controller built into the motor vehicle.
6. The system is characterized by comprising a calibration site for fixed-point parking of a motor vehicle provided with a plurality of radar probes to be calibrated, a plurality of calibration pieces and a calibration controller for connecting the radar probes, wherein the calibration site comprises a motor vehicle parking area in the middle and a plurality of detection areas which surround the motor vehicle parking area and are arranged in a one-to-one correspondence with the radar probes, one calibration piece is movably arranged in each detection area, the distances between each calibration piece and the corresponding radar probe are different, each radar probe is respectively connected with the calibration controller through a DATA wire only through a DATA pin, and the calibration controller is used for sending a calibration command to enable the radar probes to respectively detect the distance of the corresponding calibration piece, determining the unique identity of each radar probe according to the distance detection value of the corresponding calibration piece fed back by each radar probe and a pre-stored calibration piece identification code and distance relation table, and writing the identity into a nonvolatile memory of the corresponding radar probe.
7. The vehicle radar calibration system as defined in claim 6, wherein a wave-absorbing barrier is provided at a boundary between any two adjacent detection zones and at an end of each detection zone remote from a parking zone of the motor vehicle.
8. The vehicle radar calibration system of claim 6, wherein the calibration controller is an instrument module or a body controller built into the motor vehicle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202223288758.9U CN220171228U (en) | 2022-12-06 | 2022-12-06 | Vehicle-mounted mainframe-free radar system and vehicle-mounted radar calibration system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202223288758.9U CN220171228U (en) | 2022-12-06 | 2022-12-06 | Vehicle-mounted mainframe-free radar system and vehicle-mounted radar calibration system |
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| CN220171228U true CN220171228U (en) | 2023-12-12 |
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| CN202223288758.9U Active CN220171228U (en) | 2022-12-06 | 2022-12-06 | Vehicle-mounted mainframe-free radar system and vehicle-mounted radar calibration system |
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