CN207037120U - A kind of collision detection circuit - Google Patents
A kind of collision detection circuit Download PDFInfo
- Publication number
- CN207037120U CN207037120U CN201720726338.4U CN201720726338U CN207037120U CN 207037120 U CN207037120 U CN 207037120U CN 201720726338 U CN201720726338 U CN 201720726338U CN 207037120 U CN207037120 U CN 207037120U
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- circuit
- infrared
- collision detection
- infrared receiving
- mcu
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Abstract
The utility model provides a kind of collision detection circuit, and it includes switching power circuit, infrared transtation mission circuit, infrared receiving circuit and voltage detecting circuit, and compared with traditional collision detection circuit, the both ends of infrared receiving diode are parallel with switch.Collision detection circuit provided by the utility model, compared to traditional microswitch for being arranged at sweeper both sides, the advantage is that can save I/O port, reach the function of detection barrier and collision.Under special circumstances, when such as barrier is black or is smaller, can be collided by bump bar causes switch motion, can detect whether barrier.
Description
Technical field
The collision detection circuit of family's floor cleaning wash mill necessary to human lives is the utility model is related to, especially
Ground, it the utility model is related to a kind of collision detection circuit of field in intelligent robotics.
Background technology
Sweeping robot, also known as automatic sweeping machine, intelligent cleaning device, floor-treating device etc., belong to smart home
Equipment.Machine sweep the floor compared with traditional dust catcher, its fuselage is radio equipment, overcomes and inconvenience is cleaned caused by electric wire,
It is based on collar plate shape, and there is also square footage of different vendor's production etc..
Existing sweeping robot is fitted with greatly ground detection sensing gas and wall detection sensor etc., to a certain extent
The detection to ground road conditions and wall distance is realized, realizes the intellectuality of sweeping robot.But existing wall detection sensing
Device can not detect the concrete condition of the collision obstacle of sweeping robot, thus phenomena such as stuck or even shutdown easily occur.
Therefore, it is necessary to design a set of simple and easy technical scheme, solve the problems, such as the detection of obstacles of sweeping robot, improve obstacle
The precise degrees of analyte detection, reduce the therefore infringement to caused by machine.
Utility model content
Collision detection circuit provided by the utility model, by being parallel with switch at the both ends of infrared receiving diode,
Voltage change is detected using MCU, is confirmed whether have front-wheel to test the speed, avoids the dieback of machine, stuck phenomenon from occurring.
Collision detection circuit disclosed in the utility model, its concrete technical scheme are as follows：
Including switching power circuit, infrared transtation mission circuit, infrared receiving circuit and voltage detecting circuit, the Switching Power Supply
Circuit on one side is connected with the infrared receiving circuit and voltage detecting circuit respectively, and the infrared transtation mission circuit infrared connects with described
Receive circuit to be connected, the infrared transtation mission circuit is connected with MCU IO, and the voltage detecting circuit is connected with MCU AD IO, described
Infrared receiving circuit includes infrared receiving diode, and the both ends of the infrared receiving diode are parallel with switch.
Further, one end of the infrared receiving diode respectively with the switching power circuit, voltage detecting circuit
It is connected, the other end ground connection of the infrared receiving diode.
Further, the infrared transtation mission circuit includes infrared transmission diode, one end of the infrared transmission diode
It is connected by resistance R4 with MCU IO.
Further, described switching power circuit one end is examined with the infrared receiving circuit, voltage respectively by resistance R1
Slowdown monitoring circuit is connected.
Further, described voltage detecting circuit one end is connected with MCU AD IO, and the voltage detecting circuit other end leads to
RC filter circuits, resistance R2 are crossed with being connected respectively with the switching power circuit, infrared receiving circuit.
Further, the MCU AD IO are MCU AD Sampling Interfaces.
Further, the RC filter circuits include the resistance R3 and electric capacity C2 being in parallel, described RC filter circuits one end
Ground connection.
Beneficial effect：
1. collision detection circuit provided by the utility model, compared to traditional microswitch for being arranged at sweeper both sides,
The advantage is that can save I/O port, reach the function of detection barrier and collision.
2. collision detection circuit provided by the utility model, under special circumstances, such as barrier be black or it is smaller when,
Can be collided by bump bar causes switch motion, can detect whether barrier.
3. collision detection circuit provided by the utility model, is easily installed, the microswitch of both sides can be saved, saves circuit
Cost, and be more convenient for installing, greatly promote aesthetic property.
Brief description of the drawings
Fig. 1 is collision detection circuit circuit diagram.
Embodiment
The collision detection circuit that the utility model is related to, refer to the attached drawing：
Including switching power circuit, infrared transtation mission circuit, infrared receiving circuit and voltage detecting circuit, switching power circuit
One end is connected with infrared receiving circuit and voltage detecting circuit respectively, and infrared transtation mission circuit is connected with infrared receiving circuit, infrared
Transtation mission circuit is connected with MCU IO, and voltage detecting circuit is connected with MCU AD IO, and infrared receiving circuit includes the pole of infrared receiver two
Pipe, the both ends of infrared receiving diode are parallel with switch.When sweeper and barrier bump against, infrared receiving diode both ends are simultaneously
The switch conduction of connection, infrared receiving circuit are in short-circuit condition, and voltage detecting circuit is sampled according to voltage signal is measured by AD
Interface is transferred to MCU.
One end of infrared receiving diode is connected with switching power circuit, voltage detecting circuit respectively, the pole of infrared receiver two
The other end ground connection of pipe.
Infrared transtation mission circuit includes infrared transmission diode, and one end of infrared transmission diode passes through resistance R4 and MCU IO
It is connected.
Switching power circuit one end is connected with infrared receiving circuit, voltage detecting circuit respectively by resistance R1.
Voltage detecting circuit one end is connected with MCU AD Sampling Interface MCU AD IO, and the voltage detecting circuit other end passes through
RC filter circuits, resistance R2 with switching power circuit, infrared receiving circuit with being connected respectively.MCU AD IO are.RC filter circuits
It is grounded including the resistance R3 being in parallel and electric capacity C2, RC filter circuit one end.
Above circuit operation principle：
A.MCU allows infrared transmission diode D1 to work by MCU I/O ports, with PWM mode or direct level, now red
The light that outer transmission diode is sent belongs to black light.
B. infrared receiving diode D2 is pulled up by R1, and this, which is in, has certain voltage when not receiving.Given by R2
MCU, now R3C2 constitute a RC filter circuit.
C. when infrared receiving diode does not receive infrared signal, MCU AD IO can detect that D2 both end voltages, and record
The value is U1.
D.MCU can now allow infrared-emitting diode to work, and now MCU AD IO can detect that the other voltage in D2 both ends
It is worth for U2.
E. when U1-U2 is more than certain value U3, now think that there is barrier in front.
If F. now U1=U2=0, illustrate that now switch S1 has been acted, integrated structure, now bump bar encountered barrier
Hinder thing.
Although embodiment of the present utility model has been shown and described above, above-described embodiment be it is exemplary, no
It is understood that not depart from principle and objective of the present utility model to limitation of the present utility model, one of ordinary skill in the art
In the case of carry and above-described embodiment can be changed, changed in the scope of the utility model, replaced and modification.
Claims (7)
1. a kind of collision detection circuit, it is characterised in that including switching power circuit, infrared transtation mission circuit, infrared receiving circuit
And voltage detecting circuit, described switching power circuit one end are connected with the infrared receiving circuit and voltage detecting circuit respectively,
The infrared transtation mission circuit is connected with the infrared receiving circuit, and the infrared transtation mission circuit is connected with MCU IO, the voltage
Detection circuit is connected with MCU AD IO, and the infrared receiving circuit includes infrared receiving diode, the infrared receiving diode
Both ends be parallel with switch.
2. collision detection circuit according to claim 1, it is characterised in that one end difference of the infrared receiving diode
It is connected with the switching power circuit, voltage detecting circuit, the other end ground connection of the infrared receiving diode.
3. collision detection circuit according to claim 1 or 2, it is characterised in that the infrared transtation mission circuit includes infrared
Diode is sent, one end of the infrared transmission diode is connected by resistance R4 with MCU IO.
4. collision detection circuit according to claim 3, it is characterised in that described switching power circuit one end passes through resistance
R1 is connected with the infrared receiving circuit, voltage detecting circuit respectively.
5. collision detection circuit according to claim 4, it is characterised in that described voltage detecting circuit one end and MCU AD
IO is connected, the voltage detecting circuit other end by RC filter circuits, resistance R2 with respectively with the switching power circuit, red
Outer receiving circuit is connected.
6. collision detection circuit according to claim 5, it is characterised in that the AD samplings that the MCU AD IO are MCU connect
Mouthful.
7. collision detection circuit according to claim 5, it is characterised in that the RC filter circuits include the electricity being in parallel
Hinder R3 and electric capacity C2, RC filter circuits one end ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720726338.4U CN207037120U (en) | 2017-06-21 | 2017-06-21 | A kind of collision detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720726338.4U CN207037120U (en) | 2017-06-21 | 2017-06-21 | A kind of collision detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207037120U true CN207037120U (en) | 2018-02-23 |
Family
ID=61468625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720726338.4U Active CN207037120U (en) | 2017-06-21 | 2017-06-21 | A kind of collision detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207037120U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108357453A (en) * | 2018-03-05 | 2018-08-03 | 浙江吉利汽车研究院有限公司 | A kind of collision detection circuit and system |
-
2017
- 2017-06-21 CN CN201720726338.4U patent/CN207037120U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108357453A (en) * | 2018-03-05 | 2018-08-03 | 浙江吉利汽车研究院有限公司 | A kind of collision detection circuit and system |
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