CN208452896U - A kind of reversing aid system - Google Patents
A kind of reversing aid system Download PDFInfo
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- CN208452896U CN208452896U CN201820480512.6U CN201820480512U CN208452896U CN 208452896 U CN208452896 U CN 208452896U CN 201820480512 U CN201820480512 U CN 201820480512U CN 208452896 U CN208452896 U CN 208452896U
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- 239000000523 sample Substances 0.000 claims abstract description 21
- 230000004888 barrier function Effects 0.000 claims description 6
- 238000012360 testing method Methods 0.000 description 10
- 238000001514 detection method Methods 0.000 description 4
- 238000002604 ultrasonography Methods 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
The utility model discloses a kind of reversing aid systems, including at least two straight-down negative ultrasonic sensor mould group being connect with ECU module and audible alarm unit, the straight-down negative ultrasonic sensor mould group includes the ultrasonic probe of 2 files arrangement, first ultrasonic probe and the angle on ground are 90 °, second ultrasonic probe and the angle on ground are 45 °, and the audible alarm unit controls acoustic pressure size according to obstacle distance and the mode that pipes by ECU module.New mounting means and structural member are used for lorry, is conducive to reduce blind area.
Description
Technical field
The utility model relates to a kind of reversing aid systems, more particularly to a kind of reversing auxiliary based on ultrasound system
System, is particularly suitable for lorry.
Background technique
Currently, Ultrasonic Range Finder for Parking is strong by penetration power, decaying is small, albedo is strong, to illumination, color, electromagnetic field
It is insensitive, not vulnerable to adverse weather conditions, range measurement principle is simple, range accuracy is high, at low cost the features such as, be increasingly becoming and multiplied
With the standard configuration of vehicle.But it is still very low in the assembly rate of commercial vehicle field, especially lorry.Common reversing radar application
Some problems are still remained on lorry.For example current reversing radar is mounted on back buffer beam more, and collision prevention girders category rapid wear
Part, at the same because mounting height it is excessively high caused by short-distance blind section the problem of.
Tractor video radar backing device is described in the utility model patent that notification number is CN 201833953U, is wrapped
Camera, reversing radar and display are included, camera connect display with reversing radar, and display is located at the main driving of tractor
Interior, is provided with image splitter in display, the external connection display of image splitter, and image splitter is by the picture of display
Face is divided into three parts, while showing the real-time pictures got off captured by three cameras, the information that reversing radar senses
It shows, is mutually recruited by installing radar in the tail portion of vehicle and trailer compartment two sides front end with camera over the display
It closes (three cameras combine one by one with three radars).It needs with radar and camera, it is at high cost.It is existing by radar into
There are following several respects in the technology of row assisting car backing: combination, installation site and mounting means of sensor etc. are shadows
The comprehensive principal element of information detection is rung, prior art is not given and fully considered.
Utility model content
In order to solve above-mentioned technical problem, the utility model provides a kind of reversing aid system, especially suitable
In lorry, new mounting means and structural member are used for lorry, is in different angles from ground using what is arranged including 2 files
The straight-down negative ultrasonic sensor mould group of the ultrasonic probe of degree realizes short distance and Distance Test and determines detection model
It encloses.
The technical solution of the utility model is:
A kind of reversing aid system, including at least two straight-down negative ultrasonic sensor mould group harmony being connect with ECU module
Sound warning device, the straight-down negative ultrasonic sensor mould group include the ultrasonic probe of 2 files arrangement, the first ultrasonic wave
Detecting head and the angle on ground are 90 °, and the angle on the second ultrasonic probe and ground is 45 °, the audible alarm unit by
ECU module controls acoustic pressure size and the mode that pipes according to obstacle distance.
In preferred technical solution, the straight-down negative ultrasonic sensor mould group is installed on rear of vehicle bottom.
It further include the display module being connect with ECU module, orientation where real-time display barrier in preferred technical solution
And distance, and different distance ranges is marked with different color regions.
Compared with prior art, the utility model has the advantages that:
1, new mounting means and structural member are used for lorry, ultrasonic sensor is mounted on container bottom, uses
The straight-down negative ultrasonic sensor mould group of the ultrasonic probe in different angles with ground including 2 files arrangement, is realized
Short distance and Distance Test and determining investigative range.
, straight-down negative ultrasonic sensor mould group vertically adjacent probe between, have pairing between 45 degree of adjacent probes
Test, can accurately obtain the specific coordinate of barrier, while matching test and being conducive to reduce blind area.
Detailed description of the invention
The utility model is further described with reference to the accompanying drawings and embodiments:
Fig. 1 is the functional block diagram of the utility model reversing aid system based on ultrasound；
Fig. 2 is Tthe utility model system main working process.
Specific embodiment
To make the objectives, technical solutions and advantages of the present invention clearer, With reference to embodiment
And referring to attached drawing, the utility model is further described.It should be understood that these descriptions are merely illustrative, and do not really want
Limit the scope of the utility model.In addition, in the following description, descriptions of well-known structures and technologies are omitted, to avoid not
Necessarily obscure the concept of the utility model.
Embodiment:
With reference to the accompanying drawing, the preferred embodiment of the utility model is described further.
As shown in Figure 1, the utility model reversing aid system based on ultrasound, including connect with ECU module at least 2
A straight-down negative ultrasonic sensor mould group and audible alarm unit, straight-down negative ultrasonic sensor mould group include 2 file arrangements
Ultrasonic probe, the angle on the first ultrasonic probe and ground is 90 °, the angle of the second ultrasonic probe and ground
It is 45 °, audible alarm unit controls acoustic pressure size according to obstacle distance and the mode that pipes by ECU module.Audible alarm unit
It can be buzzer distance alarm module.
Module, as shown in Figure 1, the transmitting and reception of the ultrasonic wave of control ultrasonic sensor modules, by supersonic sensing
The received echo-signal of device module is converted to obstacle distance information, according to apart from size selection different modes driving buzzer ring
It cries.ECU module can also connect display module, need that barrier azimuth-range information is sent to display by CAN bus
Module；
Straight-down negative ultrasonic sensor mould group is installed on wagon cargo box bottom, and structure is two probe file arrangements,
In a head angle with respect to 90 degree of ground-angle, another opposite 45 degree of ground-angle of popping one's head in.It can solve top radar
The excessive problem in blind area；Between straight-down negative ultrasonic sensor mould group between vertically adjacent probe, between 45 degree of adjacent probes
There is pairing to test, the specific coordinate of barrier can be obtained accurately with this, while matching test and being conducive to reduce blind area.
Buzzer distance alarm module the acoustic pressure size of buzzer and pipes mode not according to the distance of obstacle distance
Together；
Display module, orientation and distance where the barrier of real-time display rear of vehicle, and come with different color regions
Mark different distance ranges.
Below with reference to Fig. 2, the workflow of Tthe utility model system is provided.
Modules are connected by harness according to Fig. 1；
2. powering on, as Fig. 2, ECU are initialized.It include: the initialization of MCU clock, bottom layer driving initializes, and CAN communication is initial
Change, reads APP and define file storage information, read condition when the upper task saved in EEPROM；
3. when [main SW information] is the occasion of " ON " in EEPROM, while gear meets condition, while meeting speed item
Part, while ignition signal IG, in normal range of operation, system enters sensor abnormality detecting state, detects the different of each probe
Normal state is simultaneously saved in EEPROM；
4. after init state, when [main SW information] is the occasion of " ON " in EEPROM, while gear meets item
Part, while meeting speed condition, system enters detection operation state.Sensor is according to sequential working, when single sensor is tested
Between about 35ms, test period is about 280ms.5ms is calculated for algorithm in each test period, is resulted in and is sent to CAN
Packet buffer area etc. is to be sent, while changing buzzer state according to obstacle distance information.There are 3 sensor echo receptions logical
Road, for matching test.Between the adjacent vertically arranged probe of straight-down negative sensor module, the probe of 45 degree of adjacent installations
Between have pairing test.In detection operation state, switch the working sensor in different channels by controlling analog multichannel switch；
5. [main SW information] is that the occasion of " OFF " or gear meet condition, or meet speed condition in the EEPROM, or
When IG is not in normal range of operation, system mode switchs to act OFF state.Under the state, sensor actuation stops, buzzer
Output stops.During this period, if condition meets, system will be again introduced into sensor abnormality detecting state.
It should be understood that the above-mentioned specific embodiment of the utility model is used only for exemplary illustration or explains this reality
With novel principle, without constituting limitations of the present invention.Therefore, in the spirit and scope without departing from the utility model
In the case of any modification, equivalent substitution, improvement and etc. done, should be included within the scope of protection of this utility model.In addition,
The appended claims for the utility model are intended to cover to drop out attached claim scope and boundary or this range and boundary
Whole change and modification in equivalent form.
Claims (3)
1. a kind of reversing aid system, which is characterized in that including at least two straight-down negative supersonic sensing being connect with ECU module
Device mould group and audible alarm unit, the straight-down negative ultrasonic sensor mould group include the ultrasonic probe of 2 files arrangement,
First ultrasonic probe and the angle on ground are 90 °, and the angle on the second ultrasonic probe and ground is 45 °, the sound
Warning device controls acoustic pressure size according to obstacle distance and the mode that pipes by ECU module.
2. reversing aid system according to claim 1, which is characterized in that the straight-down negative ultrasonic sensor mould group peace
Loaded on rear of vehicle bottom.
3. reversing aid system according to claim 1, which is characterized in that further include the display mould being connect with ECU module
Block, orientation and distance where real-time display barrier, and different distance ranges is marked with different color regions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820480512.6U CN208452896U (en) | 2018-04-04 | 2018-04-04 | A kind of reversing aid system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820480512.6U CN208452896U (en) | 2018-04-04 | 2018-04-04 | A kind of reversing aid system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208452896U true CN208452896U (en) | 2019-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820480512.6U Active CN208452896U (en) | 2018-04-04 | 2018-04-04 | A kind of reversing aid system |
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| Country | Link |
|---|---|
| CN (1) | CN208452896U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108357425A (en) * | 2018-04-04 | 2018-08-03 | 清华大学苏州汽车研究院（吴江） | A kind of reversing aid system |
-
2018
- 2018-04-04 CN CN201820480512.6U patent/CN208452896U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108357425A (en) * | 2018-04-04 | 2018-08-03 | 清华大学苏州汽车研究院（吴江） | A kind of reversing aid system |
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