CN104202028B - Safety switch for small aircraft - Google Patents
Safety switch for small aircraft Download PDFInfo
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- CN104202028B CN104202028B CN201410406890.6A CN201410406890A CN104202028B CN 104202028 B CN104202028 B CN 104202028B CN 201410406890 A CN201410406890 A CN 201410406890A CN 104202028 B CN104202028 B CN 104202028B
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Abstract
The invention discloses a safety switch for a small aircraft. The safety switch for the small aircraft comprises a voltage-stabilizing module, a signal receiving module, a signal processing module, a switch, a remote controller and a battery, wherein the battery is used for supplying power for the signal receiving module and the signal processing module; the voltage-stabilizing module is respectively connected with the signal receiving module and the signal processing module; the remote controller is used for sending a signal to the signal receiving module through radio, the signal receiving module is connected with the signal processing module, the signal receiving module is used for receiving a remote-control index signal from the remote controller and sending the signal to the signal processing module; and the signal processing module is connected with the switch for controlling the on-off of the switch. The safety switch can be controlled at on or off state under PWM (pulse-width modulation) waves in different duty ratios. The safety switch is small in volume, light in mass, low in power consumption, strong in robustness and especially applied to fast turning off power supply when the small aircraft is out of operation so as to prevent the personal injury and property damage.
Description
Technical field
The invention belongs to safety device, more particularly to a kind of small aircraft safety switch.
Background technology
Existing small aircraft adopts remote control control, when aircraft loses the control in remote control power, direction, does not have
There are the means reliably cut off the electricity supply, so as to cause small aircraft to continue flight out of control, cause personnel's property to damage and lose.
This phenomenon causes certain risk for the practical operation of small aircraft.
The content of the invention
In order to after overcoming small aircraft out of control cannot power-off control, so as to damnous risk, the present invention provides one
Plant small aircraft safety switch.
The purpose of the present invention is achieved through the following technical solutions：A kind of small aircraft safety switch, including voltage stabilizing
Module, signal receiving module, signal processing module, switch, remote control and battery, battery is to signal receiving module and signal processing
Module for power supply；Voltage stabilizing module is connected with signal receiving module, signal processing module respectively；Remote control is connect to signal by radio
Module sending signal is received, signal receiving module is connected with signal processing module, signal receiving module receives the remote control of remote control and refers to
Show signal, and transmit a signal to signal processing module；Signal processing module is connected with switch, the break-make of controlling switch；It is described
Signal processing module includes double D trigger U2, electric capacity C1, C6, C7, inductance L1, resistance R3, R4, adjustable potentiometer R2, lights two
Pole pipe D2, audion Q1；Wherein, electric capacity C1 one end is connected with VCC, and the other end is connected to the ground；Electric capacity C6 one end and double D trigger
The 1R ports of U2 are connected, and the other end is connected to the ground；Electric capacity C7 one end and inductance L1 and resistance R3, other end ground connection；Inductance L1 mono-
End is connected with the 2Q ports of double D trigger, other end connection resistance R3 and electric capacity C7；One end connection inductance L1 of resistance R3, separately
One end is connected with the base stage of audion Q1；Resistance R4 one end is connected with VCC, and the other end is connected with light emitting diode D2 anodes；Send out
Optical diode D2 anodes are connected with resistance R4 one end, and the other end is connected with 2 ports of double D trigger；The base stage of audion Q1 connects
Connecting resistance R3, colelctor electrode are connected with PMOS P-MOSFET of switch, the grid of PMOS P-MOSFET2, grounded emitter；Can
2 end of center contact of potentiometer R2 is adjusted to be connected with the 1Q ports of double D trigger with 1 end, 3 ends are connected with electric capacity C6 one end；Double D
The remote control indication signal that the 1CLK ports of trigger receive, by low transition be high level when, electric capacity C6 pass through adjustable electric
Position device R2 is started to charge up, and its two ends charging voltage reaches the time length of 5V（Threshold value）Determined by the resistance of adjustable potentiometer R2；
When the dutycycle of remote control indication signal is less than the threshold value, audion Q1 is led by the 2Q ports output high level of double D trigger
Logical, the collector potential of audion Q1 is identical with emitting stage current potential, to PMOS P-MOSFET and PMOS P- that switch
The grid output low level of MOSFET2, the 2 ports output low level of double D trigger, light emitting diode D2 are lighted, and indicate switch
In closure state；When the dutycycle of remote control indication signal is more than the threshold value, the 2Q ports output low level of double D trigger,
Audion Q1 is turned off, audion Q1 is in high-impedance state, the grid to PMOS P-MOSFET and PMOS P-MOSFET2 of switch
Pole does not export low level signal, and the 2 ports output high level of double D trigger, light emitting diode D2 are knocked out, and indicate switch in disconnected
Open state.
The signal receiving module includes signal receiver P1, resistance R5；Wherein, resistance R5 one end and signal receiver P1
Signal port be connected, the other end is connected to the ground；The signal port of signal receiver P1 and the double D trigger of signal processing module
1CLK ports, 2D ports be connected；Positive pole is connected with VCC；Minus earth.
The Voltage stabilizing module includes 5V voltage stabilizing chips U1, resistance R1, electric capacity C2, C3, C4, C5, light emitting diode D1；Its
In, electric capacity C2 is connected with the input port of 5V voltage stabilizing chips U1 with one end of C3, other end ground connection；One end of electric capacity C4 and C5 is equal
It is connected with the output port of 5V voltage stabilizing chips U1, the other end is connected to the ground；Resistance R1 one end and the outfan of 5V voltage stabilizing chips U1
Mouth is connected, and the other end is connected with the anode of light emitting diode D1；The minus earth of light emitting diode D1；5V voltage stabilizing chips U1 it is defeated
Inbound port is connected with positive source, and ground port is connected to the ground, output port output 5V voltages, supplies signal receiving module and signal
Processing module.
The switch includes power supply wiring mouth P2, and PMOS P-MOSFET, PMOS P-MOSFET2, resistance R6, motor connect
Line mouth Motor；Wherein, resistance R6 one end is connected with 1 port of power supply wiring mouth P2, the other end and PMOS P-MOSFET and
The grid of PMOS P-MOSFET2 is connected；The current collection of the grid of PMOS P-MOSFET and the audion Q1 of signal processing module
Extremely it is connected, drain electrode is connected with the positive pole of motor connection jaws Motor, and source electrode is connected with the positive pole of power supply wiring mouth P2；PMOS P-
The grid of MOSFET2 is connected with the colelctor electrode of the audion Q1 of signal processing module, the positive pole of drain electrode and motor connection jaws Motor
It is connected, source electrode is connected with the positive pole of power supply wiring mouth P2；The positive pole of power supply wiring mouth P2 is connected with positive source, negative pole with ground and
Power cathode is connected；The positive pole of motor connection jaws Motor is connected with the positive pole of motor, and negative pole is connected with the negative pole of ground and motor；
When the grid of PMOS P-MOSFET and PMOS P-MOSFET2 receives low level signal, their drain electrode and source electrode connect
Logical so that the positive pole of power supply wiring mouth P2 is connected with the positive pole of motor connection jaws Motor, motor obtains the power supply of power supply and normal
Work；When PMOS P-MOSFET and the grid of PMOS P-MOSFET2 are not received by low level signal or receive high electricity
During ordinary mail, their drain electrode and source electrode disconnect so that the positive pole of power supply wiring mouth P2 is broken with the positive pole of motor connection jaws Motor
Open, motor loses the power supply of power supply, quits work.
The invention has the beneficial effects as follows：Using the DC source of small aircraft, not only from having reached to small aircraft
The break-make control of working power, provides working power to safety switch circuit also by 5V voltage stabilizing chips.
Simple structure, small volume are lightweight, may be mounted at any one place on small aircraft and do not affect weight
The heart.
Can be in the difference according to small aircraft rotor quantity, DC source size, using varying number, the P- of model
MOSFET is managed, with good robustness.
Description of the drawings
Fig. 1 is small aircraft safety switch construction schematic diagram；
Fig. 2 is the circuit diagram of signal processing module；
Fig. 3 is the circuit diagram of signal receiving module；
Fig. 4 is the circuit diagram of Voltage stabilizing module；
Fig. 5 is the circuit diagram of switch.
It is embodied as explanation
With reference to embodiments and its accompanying drawing is further described.
With reference to embodiments and its accompanying drawing is further described.
As shown in figure 1, small aircraft safety switch includes Voltage stabilizing module, signal receiving module, signal processing module, opens
Pass, remote control and battery, battery are powered to signal receiving module and signal processing module；Voltage stabilizing module receives mould with signal respectively
Block, signal processing module are connected, for stabilization signal receiver module, the voltage of signal processing module；Remote control passes through radio
To signal receiving module sending signal, receive signal receiving module and be connected with signal processing module, signal receiving module receives distant
The remote control indication signal of control device, and transmit a signal to signal processing module；Signal processing module is connected with switch, controlling switch
Break-make.
As shown in Fig. 2 the signal processing module includes double D trigger U2, electric capacity C1, C6, C7, inductance L1, resistance R3,
R4, adjustable potentiometer R2, light emitting diode D2, audion Q1；Wherein, electric capacity C1 one end is connected with VCC, the other end and ground phase
Even；Electric capacity C6 one end is connected with the 1R ports of double D trigger U2, and the other end is connected to the ground；Electric capacity C7 one end and inductance L1 and electricity
Resistance R3, other end ground connection；Inductance L1 one end is connected with the 2Q ports of double D trigger, other end connection resistance R3 and electric capacity C7；Electricity
One end connection inductance L1 of resistance R3, the other end are connected with the base stage of audion Q1；Resistance R4 one end is connected with VCC, the other end with
Light emitting diode D2 anodes are connected；Light emitting diode D2 anodes are connected with resistance R4 one end, 2 ends of the other end and double D trigger
Mouth is connected；The base stage connection resistance R3 of audion Q1, colelctor electrode and PMOS P-MOSFET, PMOS P-MOSFET2 that switch
Grid be connected, grounded emitter；1Q port phase of 2 end of center contact of adjustable potentiometer R2 with 1 end with double D trigger
Even, 3 ends are connected with electric capacity C6 one end.The remote control indication signal that the 1CLK ports of double D trigger receive, by low transition be
During high level, electric capacity C6 is started to charge up by adjustable potentiometer R2, and its two ends charging voltage reaches the time length of 5V by adjustable
The resistance of potentiometer R2 determines that the time is referred to as threshold value.When the dutycycle of remote control indication signal is less than the threshold value, double D triggerings
The 2Q ports output high level of device, audion Q1 is turned on, and the collector potential of audion Q1 is identical with emitting stage current potential, split
PMOS P-MOSFET of pass exports low level with the grid of PMOS P-MOSFET2, and 2 ports of double D trigger export low electricity
Flat, light emitting diode D2 is lighted, and indicates switch in closure state；When the dutycycle of remote control indication signal is more than the threshold value,
The 2Q ports output low level of double D trigger, audion Q1 is turned off, and audion Q1 is in high-impedance state, to the PMOS for switching
P-MOSFET does not export low level signal with the grid of PMOS P-MOSFET2, and the 2 ports output high level of double D trigger is sent out
Optical diode D2 is knocked out, and indicates that switch is off.
As shown in figure 3, the signal receiving module includes signal receiver P1, resistance R5；Wherein, resistance R5 one end and letter
The signal port of number receptor P1 is connected, and the other end is connected to the ground；The signal port and signal processing module of signal receiver P1
The 1CLK ports of double D trigger, 2D ports are connected；Positive pole is connected with VCC；Minus earth.The module is powered by VCC, electricity
Resistance R5 plays a part of stable remote control indication signal level, and the remote control indication signal that the module output is received is to signal processing mould
Block.
As shown in figure 4, the Voltage stabilizing module includes 5V voltage stabilizing chips U1, resistance R1, electric capacity C2, C3, C4, C5 light two
Pole pipe D1；Wherein, electric capacity C2 is connected with the input port of 5V voltage stabilizing chips U1 with one end of C3, other end ground connection；Electric capacity C4 with
One end of C5 is connected with the output port of 5V voltage stabilizing chips U1, and the other end is connected to the ground；Resistance R1 one end and 5V voltage stabilizing chips
The output port of U1 is connected, and the other end is connected with the anode of light emitting diode D1；The minus earth of light emitting diode D1；5V voltage stabilizings
The input port of chip U1 is connected with positive source, and ground port is connected to the ground, output port output 5V voltages, that is, VCC, is supplied
To signal receiving module and signal processing module, as its running voltage, light emitting diode D1 is lighted, and represents that Voltage stabilizing module is normal
Work.
As shown in figure 5, the switch includes power supply wiring mouth P2, PMOS P-MOSFET, PMOS P-MOSFET2, electricity
Resistance R6, motor connection jaws Motor；Wherein, resistance R6 one end is connected with 1 port of power supply wiring mouth P2, the other end and PMOS
P-MOSFET is connected with the grid of PMOS P-MOSFET2；The grid of PMOS P-MOSFET and three poles of signal processing module
The colelctor electrode of pipe Q1 is connected, and drain electrode is connected with the positive pole of motor connection jaws Motor, the positive pole phase of source electrode and power supply wiring mouth P2
Even；The grid of PMOS P-MOSFET2 is connected with the colelctor electrode of the audion Q1 of signal processing module, is drained and motor connection jaws
The positive pole of Motor is connected, and source electrode is connected with the positive pole of power supply wiring mouth P2；The positive pole of power supply wiring mouth P2 and positive source phase
Even, negative pole is connected with ground and power cathode；The positive pole of motor connection jaws Motor is connected with the positive pole of motor, negative pole with ground and electricity
The negative pole of machine is connected.When the grid of PMOS P-MOSFET and PMOS P-MOSFET2 receives low level signal, they
Drain electrode is connected with source electrode so that the positive pole of power supply wiring mouth P2 is connected with the positive pole of motor connection jaws Motor, and motor obtains power supply
Power supply and normal work；When PMOS P-MOSFET is not received by low level signal with the grid of PMOS P-MOSFET2
Or when receiving high level signal, their drain electrode and source electrode disconnect so that the positive pole of power supply wiring mouth P2 and motor connection jaws
The positive pole of Motor disconnects, and motor loses the power supply of power supply, quits work.
The remote control is model airplane remote controller, including X2610 models, the 8CH models of JR companies, the SD- of SANWA companies
10G models, 6EXHP models of FUTABA companies etc..
Using front, by remote control with signal receiving module to frequency so that safety switch can be entered by radio with remote control
Row communication；
Signal receiving module receives the remote control indication signal of small aircraft remote control（PWM ripples）, and by signal（PWM ripples）
Send signal processing module to；Signal processing module is according to the PWM ripple dutycycles for receiving, controlling switch break-make；Fly when small-sized
When row device is in the hole（To thrust into）, the gear on adjusting remote device so that PWM ripples dutycycle is less than threshold value, switch is disconnected,
Power supply of the power supply to aircraft is completely cut through, small aircraft falls, prevented injury of the aircraft to personnel etc..
Claims (3)
1. a kind of small aircraft safety switch, it is characterised in that including Voltage stabilizing module, signal receiving module, signal processing mould
Block, switch, remote control and battery, battery are powered to signal receiving module and signal processing module；Voltage stabilizing module respectively with signal
Receiver module, signal processing module are connected；Remote control is by radio to signal receiving module sending signal, signal receiving module
It is connected with signal processing module, signal receiving module receives the remote control indication signal of remote control, and transmits a signal at signal
Reason module；Signal processing module is connected with switch, the break-make of controlling switch；The signal processing module includes double D trigger U2,
Electric capacity C1, C6, C7, inductance L1, resistance R3, R4, adjustable potentiometer R2, light emitting diode D2, audion Q1；Wherein, electric capacity C1
One end is connected with VCC, and the other end is connected to the ground；Electric capacity C6 one end is connected with the 1R ports of double D trigger U2, the other end and ground phase
Even；Electric capacity C7 one end is connected with inductance L1 and resistance R3, other end ground connection；The 2Q ports phase of inductance L1 one end and double D trigger
Even, other end connection resistance R3 and electric capacity C7；One end connection inductance L1 of resistance R3, the base stage phase of the other end and audion Q1
Even；Resistance R4 one end is connected with VCC, and the other end is connected with light emitting diode D2 anodes；Light emitting diode D2 anodes and resistance R4
One end is connected, and the other end is connected with 2 ports of double D trigger；The base stage connection resistance R3 of audion Q1, colelctor electrode and switch
PMOS P-MOSFET, the grid of PMOS P-MOSFET2 are connected, grounded emitter；2 end of center contact of adjustable potentiometer R2
It is connected with the 1Q ports of double D trigger with 1 end, 3 ends are connected with electric capacity C6 one end；
The switch includes power supply wiring mouth P2, PMOS P-MOSFET, PMOS P-MOSFET2, resistance R6, motor connection jaws
Motor；Wherein, resistance R6 one end is connected with 1 port of power supply wiring mouth P2, the other end and PMOS P-MOSFET and PMOS
The grid of P-MOSFET2 is connected；The grid of PMOS P-MOSFET is connected with the colelctor electrode of the audion Q1 of signal processing module,
Drain electrode is connected with the positive pole of motor connection jaws Motor, and source electrode is connected with the positive pole of power supply wiring mouth P2；PMOS P-MOSFET2
Grid be connected with the colelctor electrode of the audion Q1 of signal processing module, drain electrode be connected with the positive pole of motor connection jaws Motor, source
Pole is connected with the positive pole of power supply wiring mouth P2；The positive pole of power supply wiring mouth P2 is connected with positive source, minus earth；Motor wiring
The mouth positive pole of Motor is connected with the positive pole of motor, minus earth；
The remote control indication signal that the 1CLK ports of double D trigger receive, by low transition be high level when, electric capacity C6 passes through
Adjustable potentiometer R2 is started to charge up, and its two ends charging voltage reaches the time length of 5V and determined by the resistance of adjustable potentiometer R2；
When the dutycycle of remote control indication signal is less than the time length in short-term, the 2Q ports output high level of double D trigger, by audion Q1
Conducting, the collector potential of audion Q1 are identical with emitting stage current potential, to PMOS P-MOSFET and PMOS P- that switch
The grid output low level of MOSFET2, the 2 ports output low level of double D trigger, light emitting diode D2 are lighted, and indicate switch
In closure state；When the grid of PMOS P-MOSFET and PMOS P-MOSFET2 receives low level signal, they
Drain electrode is connected with source electrode so that the positive pole of power supply wiring mouth P2 is connected with the positive pole of motor connection jaws Motor, and motor obtains power supply
Power supply and normal work；When the dutycycle of remote control indication signal is more than the time length in short-term, the 2Q ports output of double D trigger
Low level, audion Q1 is turned off, and audion Q1 is in high-impedance state, to PMOS P-MOSFET and PMOS P- that switch
The grid of MOSFET2 does not export low level signal, and the 2 ports output high level of double D trigger, light emitting diode D2 are knocked out, referred to
Show that switch is off；When PMOS P-MOSFET is not received by low level letter with the grid of PMOS P-MOSFET2
Number or when receiving high level signal, their drain electrode and source electrode disconnect so that the positive pole of power supply wiring mouth P2 and motor wiring
The positive pole of mouth Motor disconnects, and motor loses the power supply of power supply, quits work.
2. a kind of small aircraft safety switch according to claim 1, it is characterised in that the signal receiving module bag
Include signal receiver P1, resistance R5；Wherein, resistance R5 one end is connected with the signal port of signal receiver P1, the other end with ground
It is connected；The 1CLK ports of the signal port of signal receiver P1 and the double D trigger of signal processing module, 2D ports are connected, just
Pole is connected with VCC, minus earth.
3. a kind of small aircraft safety switch according to claim 1, it is characterised in that the Voltage stabilizing module includes 5V
Voltage stabilizing chip U1, resistance R1, electric capacity C2, C3, C4, C5, light emitting diode D1；Wherein, one end of electric capacity C2 and C3 is steady with 5V
The input port of pressure chip U1 is connected, other end ground connection；Output port phase of the one end of electric capacity C4 and C5 with 5V voltage stabilizing chips U1
Even, the other end is connected to the ground；Resistance R1 one end is connected with the output port of 5V voltage stabilizing chips U1, the other end and light emitting diode D1
Anode be connected；The minus earth of light emitting diode D1；The input port of 5V voltage stabilizing chips U1 is connected with positive source, ground port
It is connected to the ground, output port output 5V voltages supply signal receiving module and signal processing module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410406890.6A CN104202028B (en) | 2014-08-19 | 2014-08-19 | Safety switch for small aircraft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410406890.6A CN104202028B (en) | 2014-08-19 | 2014-08-19 | Safety switch for small aircraft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104202028A CN104202028A (en) | 2014-12-10 |
| CN104202028B true CN104202028B (en) | 2017-04-12 |
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ID=52087270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410406890.6A Expired - Fee Related CN104202028B (en) | 2014-08-19 | 2014-08-19 | Safety switch for small aircraft |
Country Status (1)
| Country | Link |
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| CN (1) | CN104202028B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105116799A (en) * | 2015-08-06 | 2015-12-02 | 北京韦加航通科技有限责任公司 | Remote control switch and control method |
| CN106961267B (en) * | 2017-05-09 | 2023-05-30 | 四川巧夺天工信息安全智能设备有限公司 | Anti-misoperation anti-interference switching circuit |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2376141Y (en) * | 1999-02-04 | 2000-04-26 | 张忠 | General infrared remote-control switch |
| CN203014993U (en) * | 2012-11-27 | 2013-06-19 | 深圳市睿碒科技有限公司 | Switching circuit controlling power source of television signal receiving circuit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005020363A (en) * | 2003-06-26 | 2005-01-20 | Matsushita Electric Ind Co Ltd | Pulse width modulation driving device |
-
2014
- 2014-08-19 CN CN201410406890.6A patent/CN104202028B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2376141Y (en) * | 1999-02-04 | 2000-04-26 | 张忠 | General infrared remote-control switch |
| CN203014993U (en) * | 2012-11-27 | 2013-06-19 | 深圳市睿碒科技有限公司 | Switching circuit controlling power source of television signal receiving circuit |
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| Publication number | Publication date |
|---|---|
| CN104202028A (en) | 2014-12-10 |
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