CN208421240U - A kind of infrared detecting device based on blind area - Google Patents
A kind of infrared detecting device based on blind area Download PDFInfo
- Publication number
- CN208421240U CN208421240U CN201820814538.XU CN201820814538U CN208421240U CN 208421240 U CN208421240 U CN 208421240U CN 201820814538 U CN201820814538 U CN 201820814538U CN 208421240 U CN208421240 U CN 208421240U
- Authority
- CN
- China
- Prior art keywords
- infrared
- sensor mould
- infrared sensor
- mounting plate
- angle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses a kind of infrared detecting device based on blind area, the device includes an infrared detection module, fingerprint identification module, the module includes infrared sensor mould group 102, master control borad 103 and mechanical-stretching mechanism 101, one end of mechanical-stretching mechanism 101 is connected with the common end of the mounting plate of described two infrared sensor mould groups 102, while the not common end of the mounting plate of described two infrared sensor mould groups 102 is also connected on the infrared detecting device.Under the control instruction effect of the master control borad 103, one end of the mechanical-stretching mechanism 101 changes the default angle between the mounting plate of described two infrared sensor mould groups 102 by the common end to reduce check frequency, the utility model is according to by the angle between the mounting surface for closely driving mechanical telescoping mechanism change sensor module to detection of obstacles result, the area of detection to blind area is expanded, the detection blind area of the distribution of obstacles in short distance is reduced.
Description
Technical field
The utility model relates to sensing detection technical field, in particular to a kind of infrared detecting device and control based on blind area
Method processed.
Background technique
Obstacle avoidance apparatus is widely used in infrared induction technology at present, infra-red sensing system is with infrared ray be medium measurement
System can be divided into five classes according to function, can be divided by detection mechanism as photon detector and thermal detector.Infrared electronic technology is
Through having been widely used in fields such as modern science and technology, national defence and industrial or agricultural, many products have used infrared technology can
Realize the research such as vehicle speed measuring, detection.But existing infrared obstacle avoidance apparatus is usually that single hole straight line receives infrared radiation conduct
Obstacle detection source, there are blind area during obstacle detection, to having significant limitation in the detection of distribution of obstacles in space,
Various limitations of installation site etc. simultaneously, the detection range of single infrared array sensor is limited, and it is entire to be difficult to realize induction
The detection of the Temperature Distribution of space or object and the coverage rate for improving infrared detection.
Utility model content
In order to solve the above technical problems, the utility model provides the following technical solutions:
A kind of infrared detecting device based on blind area, the device include an infrared detection module, fingerprint identification module, which includes two
Infrared sensor mould group and a master control borad, the infrared detection module, fingerprint identification module further include a mechanical-stretching mechanism, mechanical-stretching machine
One end of structure is connected with the common end of the mounting plate of described two infrared sensor mould groups, for being controlled by the master control borad
Change the default angle between the mounting plate of described two infrared sensor mould groups to reduce check frequency, wherein described two red
Outer sensor mould group is symmetrically fixed on two mounting plates for connecting into default angle.
Further, under master control borad control, the infrared sensor mould group check frequency regional scope is with institute
It states the reduction of the default angle between the mounting plate of two infrared sensor mould groups and reduces.
Further, it includes a spring attachment member that the mechanical-stretching is in-house, the spring attachment member
Both ends are connect with described two infrared sensor mould groups and the master control borad respectively, for changing by the way that master control borad control is flexible
Become the default angle between the mounting plate of described two infrared sensor mould groups.
Further, the detection visual angle of described two infrared sensor mould groups is all C, and wherein C is greater than 60 degree, less than 90
Degree；
It is described two red when stretching reaches largest deformation amount under control of the spring attachment member in the master control borad
The default angle between the mounting plate of outer sensor mould group is first critical angle A1=180 degree+C；
It is described two red when compression reaches minimum deformation quantity under control of the spring attachment member in the master control borad
The default angle between the mounting plate of outer sensor mould group is second critical angle A2=180 degree；
It is described two red when compression reaches largest deformation amount under control of the spring attachment member in the master control borad
The default angle between the mounting plate of outer sensor mould group is third critiical angle A3=180 degree-C.
Further, it is blind to reach infrared sensor mould group detection when largest deformation amount for the spring attachment member compression
Region range is less than spring attachment member stretching and reaches infrared sensor mould group check frequency when largest deformation amount
Regional scope.
Further, the master control borad is believed by the detection that SPI data/address bus obtains described two infrared sensor mould groups
Number, and control the mechanical-stretching mechanism and change the default angle.
Compared with prior art, the utility model beneficial effect is: infrared detecting device provided by the utility model is to red
Outer sensor mould group increases mechanical-stretching mechanism, and structure is simple, drives mechanical telescoping mechanism to change according to the testing result of barrier
Become angle between the detection faces of sensor module, expands the area of detection to blind area, reduce the obstacle to space or object
The detection blind area of object distribution.
Detailed description of the invention
Fig. 1 be in the utility model embodiment a kind of structural schematic diagram of the infrared detecting device based on blind area and two
The mounting plate of infrared sensor mould group keeps the detection zone schematic diagram of first critical angle A1；
Fig. 2 be in the utility model embodiment a kind of structural schematic diagram of the infrared detecting device based on blind area and two
The mounting plate of infrared sensor mould group keeps the detection zone schematic diagram of second critical angle A2；
Fig. 3 be in the utility model embodiment a kind of structural schematic diagram of the infrared detecting device based on blind area and two
The mounting plate of infrared sensor mould group keeps the detection zone schematic diagram of third critiical angle A3；
Fig. 4 is that a kind of process of the control method of infrared detecting device based on blind area is provided in the utility model embodiment
Figure.
Specific embodiment
Specific embodiment of the present utility model is described further with reference to the accompanying drawing:
The present embodiment provides a kind of infrared detecting device based on blind area, which includes an infrared detection module, fingerprint identification module, such as
Shown in Fig. 1 to Fig. 3, which includes infrared sensor mould group 102, master control borad 103 and mechanical-stretching mechanism 101, mechanical-stretching
The common end of the mounting plate of one end of mechanism 101 and described two infrared sensor mould groups 102 is connected in a shaft, together
When described two infrared sensor mould groups 102 the not common end of mounting plate be connected to the infrared detecting device also by shaft
On.Under the control instruction effect of the master control borad 103, one end of the mechanical-stretching mechanism 101 is described public by drawing
End, changes the default angle between the mounting plate of described two infrared sensor mould groups 102 to reduce check frequency, wherein described
Two infrared sensor mould groups 102 are symmetrically fixed on two mounting plates for connecting into default angle, so that the infrared inspection
It surveys device and obtains the good detection effect for receiving reflection light.
Specifically, the master control borad 103 control under, the 102 check frequency regional scope of infrared sensor mould group with
The reduction of the default angle between the mounting plate of described two infrared sensor mould groups 102 and reduce.Wherein, Fig. 1
Check frequency is S1, and blind area width L1 is that first infrared sensor A ' and second is red in described two infrared sensor mould groups 102
The distance between outer sensor A, the default angle is A1；The check frequency of Fig. 2 is S11, and blind area width L2 is described two
The distance between first infrared sensor A ' and the second infrared sensor A in infrared sensor mould group 102, the default angle are
A2；The check frequency of Fig. 3 is S21, and blind area width L3 is the first infrared sensor A ' in described two infrared sensor mould groups 102
The distance between second infrared sensor A, the default angle is A3；Due to A1 > A2 > A3, so the face of check frequency S1
The area of product > check frequency S11 > check frequency S21 area, L1 > L2 > L3.In Fig. 3, L3 < 10mm be can be neglected,
Check frequency greatly reduces at this time.
It include a spring connection as a kind of mode that the utility model is implemented, inside the mechanical-stretching mechanism 101
Element, the both ends of the spring attachment member connect with described two infrared sensor mould groups 102 and the master control borad 103 respectively
It connects, it is pre- between the flexible mounting plate for changing described two infrared sensor mould groups 102 for being controlled by the master control borad 103
If angle.Spring attachment member described in the utility model implementation is a kind of spring, has certain elastic limit, i.e., maximum shape
Variable is used as subsequent detection, so that the infrared detecting device low manufacture cost.
As a kind of mode that the utility model is implemented, as shown in Figure 1 to Figure 3, described two infrared sensor mould groups 102
Detection visual angle be all C, wherein C be greater than 60 degree, less than 90 degree, be in acute angle within the scope of so that the infrared detecting device tool
There is the detection visual field of long range.
Preferably, in Fig. 1, the spring attachment member is in the master control borad 103 in the mechanical-stretching mechanism 101
Lower stretch of control reaches largest deformation amount, is obtained by geometrical relationship, between the mounting plate of described two infrared sensor mould groups 102
The default angle is as first critical angle A1=180 degree+C；Check frequency is S1, infrared overlay area S2, check frequency
S1 is consistent with the axis direction of infrared overlay area S2 and has a common point O, in the infrared detecting device just before
Side, wherein the effective distance on the axis direction of check frequency S1 is H1, having on the axis direction of infrared overlay area S2
Effect distance is H2.The range detected in the utility model embodiment it is larger and apart from the infrared detecting device farther out, generation
Blind zone is larger.
Preferably, in Fig. 2, the spring attachment member is in the master control borad 103 in the mechanical-stretching mechanism 101
Compression reaches minimum deformation quantity for Fig. 1 under control, is obtained by geometrical relationship, described two infrared sensor mould groups 102
Mounting plate between the default angle as second critical angle A2=180 degree；Check frequency is S11, infrared overlay area
For S12, check frequency S11 is consistent with the axis direction of infrared overlay area S12 and has a common point O1, in described red
The front of outer detection device, wherein the effective distance on the axis direction of check frequency S11 is H11, infrared overlay area
Effective distance on the axis direction of S2 is H12.The inspection of two infrared sensor mould groups 102 described in the utility model embodiment
The check frequency S1 in the preference of Fig. 1 can be covered by surveying visual angle.
Preferably, in Fig. 3, the spring attachment member is in the master control borad 103 in the mechanical-stretching mechanism 101
Compression reaches largest deformation amount for Fig. 2 under control, is obtained by geometrical relationship, described two infrared sensor mould groups 102
Mounting plate between the default angle as second critical angle A2=180 degree-C；Check frequency is S21, and infrared ray is superimposed area
Domain is S22, and check frequency S21 is consistent with the axis direction of infrared overlay area S22 and has a common point O2, in described
The front of infrared detecting device, wherein the effective distance on the axis direction of check frequency S21 is H21, and H21 is preferably
1.5cm, the effective distance on the axis direction of infrared overlay area S22 are H22.Two described in the utility model embodiment
The detection visual angle of infrared sensor mould group 102 can cover the check frequency S11 in the preference of Fig. 2.The utility model simultaneously
The detection covered range in visual angle is smaller and close apart from the infrared detecting device in embodiment, and the blind zone of generation is smaller,
It is negligible.
It should be noted that under the master control borad 103 control, when the installation of described two infrared sensor mould groups 102
When the default angle between plate is between the first critical angle A1 and the angular range of the second critical angle A2, institute
State the spring attachment member in mechanical-stretching mechanism 101 becomes starting compressive state from stretching longest state, while described
102 check frequency regional scope of infrared sensor mould group is between the mounting plate of described two infrared sensor mould groups 102
The reduction of the default angle and reduce；Under the master control borad 103 control, when described two infrared sensor mould groups 102
The default angle between mounting plate is between the first critical angle A2 and the angular range of the second critical angle A3
When, the spring attachment member becomes compressed shape variable from the smallest state of compressed shape variable in the mechanical-stretching mechanism 101
Maximum state, while the 102 check frequency regional scope of infrared sensor mould group is with described two infrared sensor moulds
It organizes the reduction of the default angle between 102 mounting plate and reduces；To improve the coverage area of detection, it is blind to reduce detection
Area.
Further, the spring attachment member compression reaches largest deformation amount when institute in the mechanical-stretching mechanism 101
It states 102 check frequency S21 regional scope of infrared sensor mould group and reaches largest deformation amount less than spring attachment member stretching
102 check frequency S1 regional scope of Shi Suoshu infrared sensor mould group.
As a kind of mode that the utility model is implemented, the master control borad 103 is obtained described two by SPI data/address bus
The detection signal of infrared sensor mould group 102, and control the mechanical-stretching mechanism and change the default angle.SPI data are total
Line is not limited to short haul connection, supports high speed infrared detection data transmission in real time, meets the flexible of the infrared detecting device
Detection demand under dynamic change.
Conceived based on same utility model, the utility model implementation provides a kind of control of infrared detecting device based on blind area
Method processed, for above-mentioned Fig. 1, into Fig. 3 the embodiment described, identical detection zone situation is repeated no more.The control method packet
It includes, as shown in flowchart form in figure 4,
Under step 1, the infrared detecting device stationary state, the master control borad initializes described two infrared sensor moulds
The default angle of the mounting plate of group 102, and enter step 2.
Step 2 passes through the spring attachment member stretching action in mechanical-stretching mechanism 103, described two infrared sensings
The mounting plate of device mould group 102 goes to detect the infrared ray superposition in the front of the infrared detecting device with the first critical angle A1
Whether there are obstacles in the S2 of region, is to enter step 8, otherwise enters step 3；Step 2 is filled from apart from the infrared detection
Set the situation that detection barrier is removed in farther away region.
Step 3 passes through the spring attachment member compression in mechanical-stretching mechanism 103, reduces described two infrared
The default angle of the mounting plate of sensor module 102, and 4 are entered step, it goes to detect the larger of the first critical angle A1 generation
Check frequency S1 in situation.
Step 4, described two infrared sensor mould groups 102 mounting plate go to detect with the second critical angle A2 it is described red
Whether there are obstacles in the infrared overlay area S12 in the front of outer detection device, is to enter step 8, otherwise enters
Step 5.
Step 5 passes through the spring attachment member compression in mechanical-stretching mechanism 103, reduces described two infrared
The default angle of the mounting plate of sensor module 102, and 6 are entered step, continue to test the inspection that the second critical angle A2 is generated
Survey the situation in the S11 of blind area.
Step 6, described two infrared sensor mould groups 102 mounting plate detection zone is gone with the third critiical angle A3
Whether there are obstacles in S22, is to enter step 8, otherwise enters step 7；Due to check frequency S21 width and effectively away from
It is smaller from H21, can be neglected, barrier collision accident will not occur, to thus no longer check frequency S21 is detected.
Step 7 is not present in the infrared overlay area and check frequency for confirming the front of the infrared detecting device
After barrier, the master control borad 103 controls the infrared detecting device and advances along the axis direction of infrared overlay area,
The distance of advance is the sum of the effective distance of the region S22 and its corresponding check frequency S21, in the region as detected
The total length of effective distance reaches zone of ignorance position, returns again to step 1, continues implementation aforementioned control method and is detected,
So that check frequency is nearby not present in barrier.
Step 8, described two infrared sensor mould groups 102 will feed back to the master control borad and be marked, the infrared inspection
The barrier in infrared overlay area surveyed in front of device is allowed by being reflected back dynamic infrared feedback pulse signal
The infrared detecting device further calculates the substantially orientation of barrier, and then the master control borad is according to described two infrared biographies
The location information of feedback is marked sensor mould group 102, is conducive to the infrared detecting device and carries out avoidance movement.
Wherein, the first critical angle A1 is that the spring attachment member stretching reaches in the mechanical-stretching mechanism 101
Default angle when largest deformation amount between the mounting plate of described two infrared sensor mould groups 102；Described second is critical
Angle A2 is that the spring attachment member compression reaches described two infrared biographies when minimum deformation quantity in the mechanical-stretching mechanism 101
The default angle between the mounting plate of sensor mould group 102；The third critiical angle A3 is in the mechanical-stretching mechanism 101
The spring attachment member compression reaches institute when largest deformation amount between the mounting plate of described two infrared sensor mould groups 102
State default angle；Wherein A1 > A2 > A3.
Specifically, it is that the first critical angle A1 corresponds to described two infrared sensor moulds that region S2, which is the default angle,
The infrared overlay area that 102 transmitting of group obtains, region S12 are that the default angle is described in the second critical angle A2 corresponding
Two infrared sensor mould groups 102 emit obtained infrared overlay area, and region S22 is that the default angle is the third
Critical angle A3 corresponds to described two infrared sensor mould groups 102 and emits obtained infrared overlay area；Region S2, region S12
The front that the infrared detecting device is successively approached with region S22, correspond to common point O, O1, O2 also successively approach it is described red
The front of outer detection device.
It should be noted that being connected in the step 3 and the step 5 by spring described in mechanical-stretching mechanism 103
Compression element effect is connect, the default angle of the mounting plate of described two infrared sensor mould groups 102 is reduced, it is described in the process
Two infrared sensor mould groups 102 are executing always the Obstacle Position in the infrared overlay area that detection is constantly updated
Situation, the detection visual angle of described two infrared sensor mould groups 102, which can cover, reduces the preceding institute formed based on the default angle
State check frequency.
Preferably, in the step 1, the master control borad 103 is by controlling the deformation quantity of the spring attachment member
Zero, to initialize the default angle of the mounting plate of described two infrared sensor mould groups 102, then pass through mechanical-stretching mechanism
The mounting plate of the spring attachment member stretching action in 103, described two infrared sensor mould groups 102 is critical with described first
Angle A1 goes to detect the case where there are barriers in the infrared overlay area S2 in the front of the infrared detecting device.According to institute
The maximum value that the deformation quantity of spring attachment member stretches is stated, first goes to examine since the region farthest apart from the infrared detecting device
The case where surveying the situation of barrier, then detecting short distance, and then check the barrier situation in corresponding check frequency.
Preferably, the mounting plate for reducing described two infrared sensor mould groups 102 by mechanical-stretching mechanism 101
The operation of default angle is that the master control borad 103 is compressed described two to reduce by the control spring attachment member
The default angle of the mounting plate of infrared sensor mould group 102.
Specifically, the effective distance in the step 7 be divided into the infrared overlay area effective distance and its
Effective distance on corresponding check frequency, the effective distance of the infrared overlay area are in the infrared overlay area
The infrared detecting device can received barrier reflected impulse signal longest distance in the axial direction, with described two red
The diminution of the default angle between the mounting plate of outer sensor mould group 102 and become smaller；On the check frequency it is effective away from
From for the first infrared sensor A ' or the second center infrared sensor A and the common point the check frequency axis
Length on direction, as the default angle between the mounting plate of described two infrared sensor mould groups 102 reduces and becomes
It is small；The first infrared sensor A ' and the second infrared sensor A, which is symmetrically fixed on, connects into two of default angle
On mounting plate, their relative position is with the default folder between the mounting plate of described two infrared sensor mould groups 102
The variation at angle and symmetrically change, their central point is always in the same horizontal line.
Above embodiments are only sufficiently open rather than limitation the utility model, all creation purports based on the utility model,
The replacement of equivalence techniques feature without creative work should be considered as the range of the application exposure.
Claims (6)
1. a kind of infrared detecting device based on blind area, which includes an infrared detection module, fingerprint identification module, which includes two red
Outer sensor mould group and a master control borad, which is characterized in that the infrared detection module, fingerprint identification module further includes a mechanical-stretching mechanism, machine
One end of tool telescoping mechanism is connected with the common end of the mounting plate of described two infrared sensor mould groups, for passing through the master
It controls plate control and changes the default angle between the mounting plate of described two infrared sensor mould groups to reduce check frequency, wherein institute
Two infrared sensor mould groups are stated symmetrically to be fixed on two mounting plates for connecting into default angle.
2. infrared detecting device according to claim 1, which is characterized in that under master control borad control, the infrared biography
Sensor mould group check frequency regional scope is with the default angle between the mounting plate of described two infrared sensor mould groups
Reduction and reduce.
3. infrared detecting device according to claim 1, which is characterized in that the in-house mechanical-stretching includes a bullet
Spring connecting element, the both ends of the spring attachment member connect with described two infrared sensor mould groups and the master control borad respectively
It connects, for controlling the default folder between the flexible mounting plate for changing described two infrared sensor mould groups by the master control borad
Angle.
4. infrared detecting device according to claim 3, which is characterized in that the detection of described two infrared sensor mould groups regards
Angle is all C, and wherein C is greater than 60 degree, less than 90 degree；
When stretching reaches largest deformation amount under control of the spring attachment member in the master control borad, described two infrared biographies
The default angle between the mounting plate of sensor mould group is first critical angle A1=180 degree+C；
When compression reaches minimum deformation quantity under control of the spring attachment member in the master control borad, described two infrared biographies
The default angle between the mounting plate of sensor mould group is second critical angle A2=180 degree；
When compression reaches largest deformation amount under control of the spring attachment member in the master control borad, described two infrared biographies
The default angle between the mounting plate of sensor mould group is third critiical angle A3=180 degree-C.
5. infrared detecting device according to claim 4, which is characterized in that the spring attachment member compression reaches maximum shape
The infrared sensor mould group check frequency regional scope is less than spring attachment member stretching and reaches largest deformation when variable
Infrared sensor mould group check frequency regional scope when amount.
6. infrared detecting device according to claim 1, which is characterized in that the master control borad is obtained by SPI data/address bus
The detection signal of described two infrared sensor mould groups, and control the mechanical-stretching mechanism and change the default angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820814538.XU CN208421240U (en) | 2018-05-29 | 2018-05-29 | A kind of infrared detecting device based on blind area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820814538.XU CN208421240U (en) | 2018-05-29 | 2018-05-29 | A kind of infrared detecting device based on blind area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208421240U true CN208421240U (en) | 2019-01-22 |
Family
ID=65113517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820814538.XU Active CN208421240U (en) | 2018-05-29 | 2018-05-29 | A kind of infrared detecting device based on blind area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208421240U (en) |
-
2018
- 2018-05-29 CN CN201820814538.XU patent/CN208421240U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106980111B (en) | Vehicle-mounted side rear-view anti-collision radar calibration device and calibration method thereof | |
| CN108196549A (en) | One kind is used for submersible AGV laser infrared obstacle avoidance systems | |
| US20150063068A1 (en) | Sensing device and positioning method | |
| KR20000023167A (en) | Method for determining the distance between an object and a movable device, in particular automobile | |
| US11150333B2 (en) | Object sensing apparatus and object sensing method | |
| CN105225387B (en) | A kind of deformation formula optical fiber fence system and its method for detecting invasion activity | |
| CN102590793A (en) | Method for operating sensor of vehicle and vehicle having sensor | |
| CN102103206A (en) | In-vehicle monitoring system | |
| CN108375776A (en) | A kind of infrared detecting device and control method of variable-angle | |
| CN109884639B (en) | Obstacle detection method and device for mobile robot | |
| CN104656083A (en) | Ultrasonic distance measuring system having temperature compensation function and adopting pulse counting | |
| CN105335021A (en) | Laser radar based man-machine interaction system | |
| CN105882632A (en) | Advanced emergency brake system and method for controlling brake thereof | |
| US20200290605A1 (en) | Apparatus, system, and method for vehicle collision avoidance control | |
| CN110034968A (en) | Multi-sensor Fusion vehicle safety method for detecting abnormality based on edge calculations | |
| CN208421240U (en) | A kind of infrared detecting device based on blind area | |
| CN108562914A (en) | A kind of infrared detecting device and control method based on blind area | |
| CN103568948A (en) | Safety control system for driving vehicle | |
| CN208207216U (en) | A kind of infrared detecting device of variable-angle | |
| CN103673977B (en) | The method and apparatus of rear dead zone of vehicle detection | |
| KR102179631B1 (en) | Device and method for generating and evaluating ultrasound signals, particularly for determining the distance of a vehicle from an obstacle | |
| CN104678400A (en) | Ultrasonic ranging system employing pulse counting | |
| CN110888135B (en) | Target identification method and device, storage medium and vehicle | |
| CN105372660A (en) | Early warning method and vehicle radar system | |
| US20160356883A1 (en) | Object detection apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |