CN207718174U - Mobile robot power supply switching circuit - Google Patents
Mobile robot power supply switching circuit Download PDFInfo
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- CN207718174U CN207718174U CN201720846814.6U CN201720846814U CN207718174U CN 207718174 U CN207718174 U CN 207718174U CN 201720846814 U CN201720846814 U CN 201720846814U CN 207718174 U CN207718174 U CN 207718174U
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- 208000014674 injury Diseases 0.000 abstract description 3
- 239000004065 semiconductor Substances 0.000 description 10
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- 238000006243 chemical reaction Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000013473 artificial intelligence Methods 0.000 description 1
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- 238000010276 construction Methods 0.000 description 1
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- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
The utility model discloses a kind of mobile robot power supply switching circuits, the mobile robot power supply switching circuit of the utility model, including Self-resetting power switch, power supply turn-on control circuit, off signal detection circuit and microcontroller, wherein, power supply turn-on control circuit is connect with Self-resetting power switch and microcontroller respectively, and off signal detection circuit is connect with Self-resetting power switch and microcontroller respectively；Self-resetting power switch provides the enabling signal and shutdown signal of power supply, and power supply turn-on control circuit receives enabling signal, and powers for microcontroller；Off signal detection circuit receives shutdown signal, and control single chip computer cuts off power supply.The mobile robot power supply switching circuit of the utility model it is possible to prevente effectively from directly powered off the injury brought to other electrical equipments using mechanical power switch, and is avoided the occurrence of maloperation and leads to dump, the influence brought to other electrical equipments.
Description
Technical field
The utility model belongs to robotic technology field, and in particular to a kind of mobile robot power supply switching circuit.
Background technology
As the research and development to robot makes more and more either in industrial production or people’s lives
It is worked with robot.Robot is the automatic installations for executing work, it can not only receive mankind commander, but also can transport
The program of the advance layout of row, can also be according to principle program action formulated with artificial intelligence technology.
Robot can be divided into mobile robot and stationary machine people.Mobile robot currently on the market is
Using wheeled construction, the break-make of DC power supply is mainly positioned against one mechanical power switch of concatenation in current loop and comes in fact
It is existing.
Mechanical power switch generally comprises ship type switch or self-locking type switch, such switch are directly connected on power supply
It in circuit, is switched on by that side power supply to conducting, is just disconnected by disconnection other side power supply, it can be by entire electric power loop wink
Between be switched on or off.
But due to having used many sophisticated electronics, such as industrial personal computer in robot, sensor, all-in-one machine etc., such as
Fruit turns off the power switch in the case where other electrical equipments work normally, or if someone's maloperation turns off the power switch
When, the risk that the electronic equipment worked normally damages is may result in, if things go on like this influences whether these equipment
Working life.
Utility model content
The utility model is based in the prior art due to controlling on/off using mechanical power switch, when leading to mobile
The technical issues of electronic equipment of robot be easy to cause damage is, and it is an object of the present invention to provide a kind of mobile robot power supply switch electricity
Road, the mobile robot power supply switching circuit of the utility model, including Self-resetting power switch, power supply turn-on control circuit,
Off signal detection circuit and microcontroller,
Wherein, the power supply turn-on control circuit is connect with the Self-resetting power switch and the microcontroller respectively, institute
Off signal detection circuit is stated to connect with the Self-resetting power switch and the microcontroller respectively；The Self-resetting power switch
The enabling signal and shutdown signal of power supply are provided, the power supply turn-on control circuit receives the enabling signal, and is the list
Piece machine is powered；The off signal detection circuit receives the shutdown signal, and controls the microcontroller cut-out power supply.
The power supply turn-on control circuit further comprises providing the power starting circuit for starting voltage for the microcontroller
The power supply holding circuit powered to the microcontroller with maintenance.
The off signal detection circuit further comprises that optocoupler, the off signal change the electricity of the optocoupler output
Level state, the microcontroller cut off power supply according to the variation of the level state.
The Self-resetting power switch preferably passes through the first external interface and power supply turn-on control circuit and off signal
Detection circuit is separately connected.
Power-switching circuit, the electricity are further in series between the power supply turn-on control circuit and the microcontroller
The output voltage of power supply turn-on control circuit is converted to the supply voltage of the microcontroller by power-switching circuit.
Further, further include the second external interface, the microcontroller by second external interface with it is described other
Equipment communicates.
Preferably, further include when the microcontroller receives the off signal of the other equipment, cutting off power supply.
The microcontroller includes further timer, and the timer is according to the Self-resetting power switch of detection
The duration of low level signal, when determining that the power supply turn-on control circuit is microcontroller power supply, the Self-resetting electricity
Whether source switch sends out shutdown signal.
When the power supply turn-on control circuit is that the microcontroller is powered, the timer is according to the Self-resetting of detection
The duration of the low level signal of power switch is preferably more than 3 seconds, determines that the Self-resetting power switch sends out closing letter
Number.
The positive effect of the utility model is：The utility model coordinates microcontroller control using Self-resetting power switch
Power supply processed is switched on and off, and to power for other equipment, is avoided using mechanical power switch directly power-off to other use
The injury that electric equipment is brought, and avoid the occurrence of maloperation and lead to dump, the influence that other electrical equipments are brought.This
The structure of utility model is simple, it is at low cost, be readily produced, and can reduce and the longevity is used to what robot was brought due to maloperation
The influence of life.
Description of the drawings
Fig. 1 is the schematic diagram of the mobile robot power supply switching circuit of the utility model；
Fig. 2 is the circuit diagram of the power supply turn-on control circuit of the utility model；
Fig. 3 is the circuit diagram of the off signal detection circuit of the utility model；
Fig. 4 is the circuit diagram of first external interface of the utility model；
Fig. 5 is the circuit diagram of the power-switching circuit of the utility model；
Fig. 6 is the circuit diagram of second external interface of the utility model；
Fig. 7 is the circuit diagram of the SCM peripheral circuit of the utility model.
Specific implementation mode
As shown in Figure 1, mobile robot power supply switching circuit provided by the utility model, including Self-resetting power supply are opened
Pass, power supply turn-on control circuit, off signal detection circuit and microcontroller.Its principle is that Self-resetting power switch provides power supply
Enabling signal and shutdown signal, power supply turn-on control circuit receive enabling signal, and for microcontroller power；Off signal detects
Circuit receives shutdown signal, and control single chip computer cuts off power supply, can directly be powered off to avoid using mechanical power switch
It to the injury that other electrical equipments are brought, and avoids the occurrence of maloperation and leads to dump, other electrical equipments are brought
Influence.
In the following, the present embodiment is specifically described referring in particular to Fig. 2-Fig. 7：
The circuit input end of power supply turn-on control circuit is connect with Self-resetting power switch, and circuit output end connects with microcontroller
It connects, power supply turn-on control circuit may include providing to start the power starting circuit of voltage and maintain to supply to microcontroller for microcontroller
The power supply holding circuit of electricity.As shown in Fig. 2, power supply turn-on control circuit includes resistance R12, R7, R9, R11, triode Q1, MOS
Pipe Q2, Q3, diode D2 and optocoupler OC2.Wherein, power starting circuit includes resistance R12, R7, triode Q1 and optocoupler OC2,
Self-resetting power switch is by the base stage of resistance R12 connecting triodes Q1, and the 4th of the collector connection optocoupler OC2 of triode Q1 the
Foot, the emitter of triode Q1 and the 3rd foot earth of optocoupler OC2, the 2nd foot ground connection of optocoupler OC2, the 1st foot pass through resistance
R7 is connected with the IO output signal pins of microcontroller.Power supply holding circuit includes resistance R9, R11, metal-oxide-semiconductor Q2, Q3 and diode
D2.The 1st foot of metal-oxide-semiconductor Q2 connects supply voltage；The collector of triode Q1 after resistance R9 and R11 partial pressure by connecting metal-oxide-semiconductor
The 2nd foot of Q2；The 3rd foot of metal-oxide-semiconductor Q2 is connected as the supply voltage after being controlled with power output circuit, and the 1st foot and the 3rd
Be connected with diode D2 between foot, metal-oxide-semiconductor Q3 the 1st, 2,3 feet respectively with the 1st of Q2,2,3 feet it is in parallel.
Off signal detection circuit is connect with Self-resetting power switch and microcontroller respectively.As shown in figure 3, off signal is examined
Slowdown monitoring circuit includes resistance R5, R4, R16, optocoupler OC3 and capacitance C1.Self-resetting power switch pass through resistance R5 and optocoupler OC3 the
1 foot connects, the 2nd foot ground connection of optocoupler OC3, and the 4th foot of optocoupler OC3 is drawing to the level signal of microcontroller transmission height variation
Foot, by maintaining pull-up state after resistance R4 and R16 partial pressure.The off signal of Self-resetting power switch can change optocoupler OC3
The level state of output end, microcontroller U1 cut off power supply according to the variation of level state.
Wherein, it can be that can carry out height variation with the voltage signal of control single chip computer to use optocoupler OC2, optocoupler OC3
High level signal and low level signal, and supply voltage and single-chip microcomputer signal are isolated.
In order to which Self-resetting power switch, microcontroller, power supply conducting control electricity on the basis of simplifying circuit, may be implemented
Connection between road, off signal detection circuit etc., the present embodiment is using the first external interface J4 as shown in Figure 4, wherein the
One external interface J4 is connect by harness with Self-resetting power switch, 1 foot and 2 feet and the Self-resetting power supply of the first external interface J4
A pair of of normally opened contact of switch is connected, and 1 foot of the first external interface J4 is connected with 2 feet when Self-resetting power switch is pressed, and makes R12
In high level, when Self-resetting power switch unclamps, 1 foot of the first external interface J4 and 2 feet disconnect.Specifically, Self-resetting electricity
Source switch, by the base stage of resistance R12 connecting triodes Q1, is realized and control is connected with power supply by the 2nd foot of the first external interface J4
The connection of circuit processed, Self-resetting power switch pass through the 1st of resistance R5 and optocoupler OC3 by the 2nd foot of the first external interface J4
Foot connects, and realizes the connection with off signal detection circuit.
Since supply voltage is 24V, and the operating voltage of microcontroller is 3.3V, in order to allow microcontroller to work normally,
It is in series with power-switching circuit between power supply turn-on control circuit and microcontroller U1, by the output voltage of power supply turn-on control circuit
Be converted to the supply voltage of microcontroller U1.As shown in figure 5, power-switching circuit includes concatenated power conversion chip U2 and U3,
The supply voltage of 24V can be converted to the 3.3V operating voltages of microcontroller U1 after power conversion chip U2 and U3.Wherein,
Supply voltage is converted to the voltage of 5V after power conversion chip U2, and the voltage of 5V is converted to after power conversion chip U3
The voltage of 3.3V.
In the present embodiment, microcontroller U1 can also be communicated by the second external interface J7 with other equipment, and second is external
The circuit diagram of interface J7 is as shown in Figure 6.At this point, the case where microcontroller U1 cut-out power supplies may include two kinds：1, microcontroller
When U1 receives the off signal of other equipment, power supply is cut off.The string of the 2 feet connection microcontroller U1 of second external interface J7
Message number, other pins are connect by harness with the rs 232 serial interface signal of other equipment (such as all-in-one machine).Other equipment shutdown when
It waits, signal can be sent to microcontroller U1 by serial ports, the microcontroller U1 other equipments is notified to shut down, microcontroller U1 can basis
The signal cut power supply.If 2, Self-resetting power switch in the case where microcontroller U1 is powered by long-press again, it is single
Piece machine U1 obtains the signal of forced shutdown by off signal detection circuit, and then microcontroller U1 can pass through the second external interface J7
Serial ports give other equipment to send shutdown command then to cut off power supply after control other equipment shutdown.Microcontroller U1 can be with
Other equipment communicates, and controls cut-out power supply according to the off signal of other equipment, effectively prevents other equipment and closed
Machine, and microcontroller is still powered and powers for it, causes to waste.
The peripheral circuit of microcontroller U1 as circuit main composition is as shown in Figure 7, wherein has timing inside microcontroller U1
Device, timer determine power supply turn-on control circuit according to the duration of the low level signal of the Self-resetting power switch of detection
When powering for microcontroller U1, whether Self-resetting power switch sends out shutdown signal.Specifically, power supply turn-on control circuit is monolithic
When machine U1 power supplies, timer is preferably more than 3 seconds according to the duration of the low level signal of the Self-resetting power switch of detection,
It determines that Self-resetting power switch sends out shutdown signal, maloperation can be prevented and microcontroller is caused to cut off supply voltage, it is right
The problem of other equipment impacts.It should be noted that in the present embodiment, the low level signal of Self-resetting power switch is held
When the continuous time is more than 3 seconds, determine that Self-resetting power switch sends out shutdown signal, it in other embodiments, can also be according to reality
It needs to be changed the duration of judgement.
The specific work process of the utility model is the of moment the first external interface J4 that Self-resetting power switch is pressed
1 foot is connected with the 2nd foot, and the level at R12 is drawn high, triode Q1 conducting, and metal-oxide-semiconductor Q2 and Q3 is caused to meet unlocking condition, Q2 and
1 end of Q3 and the conducting of 3 ends, supply voltage have 24 volts of output voltage, and 3.3V electricity is exported after power conversion chip U2 and U3
Pressure is microcontroller U1 power supplies.Pin 11 is output it after microcontroller U1 initialization and moves high level to, and optocoupler OC2 conductings are maintained
Q2 and Q3 conductings.The Serial Port Line of second external interface J7 is communicated with other electronic equipments, when the string of the second external interface J7
When receiving the off signal of other equipment in mouthful, 11 feet can be become low level state, metal-oxide-semiconductor by microcontroller U1 from high level state
Q2 and Q3 cut-offs, electric power loop disconnect.Or when the switch of the first external interface J4 is again switched on, optocoupler OC3 can also be connected,
The Power_Off signals of its 4th pin can become low level from high level, and signal condition is input to the of microcontroller U1
12 feet, microcontroller U1 can check that the signal is maintained at the low level time by internal timer, if the duration reaches
3 seconds, then other equipment shutdown is notified by the Serial Port Line of the second external interface J7, then by the 11st foot of microcontroller U1 from height
Level state becomes low level state, metal-oxide-semiconductor Q2 and Q3 cut-off, and electric power loop disconnects.
In conclusion the mobile robot power supply switching circuit microcontroller of the utility model, optocoupler, metal-oxide-semiconductor and having
The self-resetting switch of normally opened contact come realize on/off control circuit, the power starting circuit after self-resetting switch is pressed
Conducting is that microcontroller is powered, and microcontroller controls the optocoupler of power supply holding circuit by its pin after being powered on and metal-oxide-semiconductor is realized
Power supply self-locking is microcontroller continued power.After microcontroller serial port receives power-off signal or switch is pressed for a long time again, monolithic
Function controls power supply disconnection again.The utility model has the advantages of simple structure, it is at low cost, be readily produced, and can reduce due to accidentally grasp
Make the influence for the service life brought to robot.
Claims (9)
1. a kind of mobile robot power supply switching circuit, which is characterized in that including Self-resetting power switch, power supply conducting control
Circuit, off signal detection circuit and microcontroller,
Wherein, the power supply turn-on control circuit is connect with the Self-resetting power switch and the microcontroller respectively, the pass
Machine signal deteching circuit is connect with the Self-resetting power switch and the microcontroller respectively；The Self-resetting power switch provides
The enabling signal and shutdown signal of power supply, the power supply turn-on control circuit receive the enabling signal, and are the microcontroller
Power supply；The off signal detection circuit receives the shutdown signal, and controls the microcontroller cut-out power supply.
2. mobile robot power supply switching circuit as described in claim 1, which is characterized in that the power supply conducting control electricity
Road includes providing to start the power starting circuit of voltage and the power supply powered to the microcontroller is maintained to maintain for the microcontroller
Circuit.
3. mobile robot power supply switching circuit as described in claim 1, it is characterised in that：The off signal detection electricity
Road includes optocoupler, and the off signal changes the level state of the optocoupler output, and the microcontroller is according to the level shape
Power supply is cut off in the variation of state.
4. mobile robot power supply switching circuit as described in claim 1, which is characterized in that the Self-resetting power switch
It is separately connected by the first external interface and power supply turn-on control circuit and off signal detection circuit.
5. mobile robot power supply switching circuit as described in claim 1, which is characterized in that the power supply conducting control electricity
It is in series with power-switching circuit between road and the microcontroller, the power-switching circuit is by the output of power supply turn-on control circuit
Voltage is converted to the supply voltage of the microcontroller.
6. mobile robot power supply switching circuit as described in claim 1, which is characterized in that further include second external connecing
Mouthful, the microcontroller is communicated by second external interface with other equipment.
7. mobile robot power supply switching circuit as claimed in claim 6, it is characterised in that：It further include the microcontroller
When receiving the off signal of the other equipment, power supply is cut off.
8. mobile robot power supply switching circuit as described in claim 1, which is characterized in that the microcontroller includes timing
Device, the timer determine the power supply according to the duration of the low level signal of the Self-resetting power switch of detection
When turn-on control circuit is that the microcontroller is powered, whether the Self-resetting power switch sends out shutdown signal.
9. mobile robot power supply switching circuit as claimed in claim 8, it is characterised in that：The power supply conducting control electricity
When road is that the microcontroller is powered, the timer continues according to the low level signal of the Self-resetting power switch of detection
Time is more than 3 seconds, determines that the Self-resetting power switch sends out shutdown signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720846814.6U CN207718174U (en) | 2017-07-13 | 2017-07-13 | Mobile robot power supply switching circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720846814.6U CN207718174U (en) | 2017-07-13 | 2017-07-13 | Mobile robot power supply switching circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207718174U true CN207718174U (en) | 2018-08-10 |
Family
ID=63063719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720846814.6U Expired - Fee Related CN207718174U (en) | 2017-07-13 | 2017-07-13 | Mobile robot power supply switching circuit |
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| Country | Link |
|---|---|
| CN (1) | CN207718174U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109665078A (en) * | 2019-02-11 | 2019-04-23 | 深圳鳍源科技有限公司 | Remote-controlled vehicle |
-
2017
- 2017-07-13 CN CN201720846814.6U patent/CN207718174U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109665078A (en) * | 2019-02-11 | 2019-04-23 | 深圳鳍源科技有限公司 | Remote-controlled vehicle |
| CN109665078B (en) * | 2019-02-11 | 2024-05-24 | 深圳鳍源科技有限公司 | Remote-controlled submersible |
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Granted publication date: 20180810 |