CN212980533U - Trigger circuit, unmanned aerial vehicle device and unmanned aerial vehicle of saving oneself - Google Patents
Trigger circuit, unmanned aerial vehicle device and unmanned aerial vehicle of saving oneself Download PDFInfo
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- CN212980533U CN212980533U CN202021320039.9U CN202021320039U CN212980533U CN 212980533 U CN212980533 U CN 212980533U CN 202021320039 U CN202021320039 U CN 202021320039U CN 212980533 U CN212980533 U CN 212980533U
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- 238000005474 detonation Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model provides a trigger circuit, unmanned aerial vehicle device and unmanned aerial vehicle of saving oneself, trigger circuit include output port, trigger protection circuit and relay, trigger protection circuit connects the coil end of relay and the earthing terminal of output port respectively, the both ends of output port are connected to first normally closed contact pin, one of them pin of second normally closed contact pin is unsettled, another pin connects the power end; the relay also comprises a first pin and a second pin, the second pin is arranged in a suspended manner, and the first pin is connected with the anode of the output port; when the relay is in an attraction state, the two ends of the output port are disconnected with short circuit connection, one end of the output port is connected with the anode, and the other end of the output port is grounded. Protection circuit and the trigger circuit of quick trigger function have multiple protection through the setting to avoid the spurious triggering to the trigger circuit design, open the device of saving oneself, avoided the emergence of unmanned aerial vehicle machine of exploding accident, realize the protection to unmanned aerial vehicle.
Description
Technical Field
The utility model relates to an unmanned aerial vehicle correlation technique field, specific theory relates to a trigger circuit, unmanned aerial vehicle device and unmanned aerial vehicle of saving oneself.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
Along with the development of science and technology, unmanned aerial vehicle more and more uses each to receive usefulness, and the electric power is patrolled and examined aerial photograph, survey and drawing, plant protection etc.. The inventor finds that the unmanned aerial vehicle can sometimes have accidents such as propeller breakage and rapid battery power failure in air flight or operators, and at the moment, the unmanned aerial vehicle often has a machine explosion accident, and serious loss is caused to an owner or other personnel of the unmanned aerial vehicle.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the above problem, a trigger circuit, unmanned aerial vehicle device and unmanned aerial vehicle of saving oneself is proposed, through setting up the protection circuit that has multiple protection and the trigger circuit of quick trigger function, save oneself the device for unmanned aerial vehicle in real time and provide the trigger signal who opens the device of saving oneself, and avoid the spurious triggering to the trigger circuit design, can launch automatically, open the device of saving oneself like the parachute, make unmanned aerial vehicle slowly descend, the emergence of unmanned aerial vehicle explosive accident has been avoided, the realization is to unmanned aerial vehicle's protection.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a first aspect of the present invention provides a trigger circuit, which includes an output port, a trigger protection circuit and a relay, wherein the trigger protection circuit is connected to a coil end of the relay and a grounding end of the output port respectively;
the relay at least comprises two groups of normally closed contact pins, wherein the first normally closed contact pin is connected with two ends of the output port, one pin of the second normally closed contact pin is suspended, and the other pin is connected with a power supply end; the relay also comprises a first pin and a second pin, the second pin is arranged in a suspended manner, and the first pin is connected with the anode of the output port; when the relay is in an actuation state, the contacts corresponding to the two groups of normally closed contact pins in the relay are disconnected, the contact of the pin connected with the power supply end in the second normally closed contact pin in the relay is actuated with the contact of the first pin, and the pin contact of the positive electrode connected with the output port in the first normally closed contact pin in the relay is actuated with the contact of the second pin.
A second aspect of the utility model provides an unmanned aerial vehicle device of saving oneself, including the controlling means that the device of saving oneself and control save oneself the device and open, wherein controlling means adopts a foretell trigger circuit.
The third aspect of the utility model provides an unmanned aerial vehicle, unmanned aerial vehicle adopts the aforesaid an unmanned aerial vehicle device of saving oneself.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a trigger circuit design output port is on the pin that does not trigger state lug connection correspond at two normally closed contacts of relay, and the output port is in the state of short circuit under normal condition, has improved the reliability that triggers, avoids trigger circuit spurious triggering. Through this trigger circuit direct trigger unmanned aerial vehicle device of saving oneself, can launch automatically, open the device of saving oneself like the parachute, make unmanned aerial vehicle slowly descend, avoided the emergence of unmanned aerial vehicle explosive accident, realize the protection to unmanned aerial vehicle.
Drawings
The accompanying drawings, which form a part of the specification, are provided to provide a further understanding of the invention, and are included to explain the illustrative embodiments and the description of the invention, and not to constitute a limitation of the invention.
Fig. 1 is a circuit diagram of a trigger circuit according to embodiment 1 of the present invention;
fig. 2 is a schematic view of the self-rescue device of the unmanned aerial vehicle in embodiment 2 of the present invention;
in fig. 2, i, a first housing, ii, and a control device.
The specific implementation mode is as follows:
the present invention will be further explained with reference to the accompanying drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise. It should be noted that, in the present invention, the features of the embodiments and the examples may be combined with each other without conflict. The embodiments will be described in detail below with reference to the accompanying drawings.
Example 1
In the technical scheme disclosed in one or more embodiments, a trigger circuit is provided, which can be applied to a control circuit to control the connection of a certain circuit or the triggering of a certain device, such as a detonation circuit of an unmanned aerial vehicle, to connect a detonation cord and release high-pressure gas; it can also be to turn on a valve, a switch, etc., as shown in fig. 1, the trigger circuit includes an output port J3, a trigger protection circuit and a relay, the trigger protection circuit is connected to the coil end of the relay and the ground end of the output port J3 respectively;
the relay at least comprises two groups of normally closed contact pins, wherein the first normally closed contact pin is connected with two ends of the output port J3, one pin of the second normally closed contact pin is suspended, and the other pin is connected with a power supply end; the relay further comprises a first pin and a second pin, the second pin is arranged in a suspended mode, and the first pin is connected with the anode of the output port J3; when the relay is in an actuation state, the contacts corresponding to the two groups of normally closed contact pins in the relay are disconnected, the contact of the pin connected with the power supply end in the second normally closed contact pin in the relay is actuated with the contact of the first pin, and the pin contact of the positive electrode connected with the output port J3 in the first normally closed contact pin in the relay is actuated with the contact of the second pin.
This embodiment sets up the both ends of output port J3 to short circuit connection through two normally closed pins with the both ends of output port J3 through connecting the relay, connects power and earthing terminal respectively after triggering, and under the state of not triggering, the both ends short circuit of output can improve the reliability of the device work of saving oneself, avoids arousing the spurious triggering because of factors such as interference.
Alternatively, as shown in fig. 1, the relay is an 8-pin relay, and the model may be HFD4, where pins 1 and 8 are pins for connecting an internal coil of the relay, pins 2 to 7 are pins for connecting internal contacts, pins 2 and 3 are pins of a first normally closed contact led out from a first normally closed contact, and pins 6 and 7 are pins of a second normally closed contact led out from a second normally closed contact. The pin 4 may be suspended as a second pin, and the pin 5 is a first pin. When the relay is not attracted, two ends of the output port J3 are in short-circuit connection through pins 2 and 3; when the relay is connected, the pins 2 and 3 are disconnected, the pins 6 and 7 are disconnected, the pins 3 and 4 are connected, the pins 5 and 6 are connected, and the positive end of the output port is connected with the positive electrode of the power supply.
Optionally, in order to improve the safety of the system, the circuit is protected when faults such as short circuit and overcurrent occur, and a fuse FU can be arranged on a circuit of the relay connected with the power supply.
In some embodiments, the trigger protection circuit includes a trigger execution circuit and a protection circuit, which are isolated from each other, the trigger execution circuit is connected to the coil terminal of the relay for connecting the positive electrode of the output port J3 and the power supply, and the protection circuit is connected to the ground terminal of the output port J3 for reliably grounding the ground terminal of the output port J3.
The trigger execution circuit controls the positive pole of the output port J3 to be connected with a circuit, the protection circuit controls the grounding end of the output port J3 to be grounded, the trigger execution circuit and the protection circuit are arranged in an isolated mode and are divided into two circuits which respectively control the connection of the output ports, the two ends of the output ports can be guaranteed to be reliably isolated, and the reliability and the stability of the circuit are improved.
Optionally, the trigger execution circuit includes a first photocoupler P1 and a diode D1, an input end of the first photocoupler P1 is connected to the first control signal and the positive power supply terminal respectively, an output end of the first photocoupler P1 is grounded, the other end of the output end of the first photocoupler P1 is connected to two pins of the relay coil through a diode D1 and directly connected to the other end of the relay coil through a diode D1, that is, the other end of the first photocoupler P1 is connected to the relay pin 8 directly and connected to the relay pin 7 through a diode D1, and a negative terminal of the diode D1 is connected to the pin of the positive power supply terminal.
In some embodiments, the protection circuit comprises a second photocoupler P2 and an electronic switch K1, wherein one end of the electronic switch K1 is grounded, and the other end is connected to the ground terminal of the output port J3; the input end of the second photoelectric coupler P2 is connected with a power supply and a second control signal, and the output end of the second photoelectric coupler P2 is connected with the electronic switch K1 through a pull-down resistor R11.
Optionally, the electronic switch may be 8205A in model number.
The first control signal and the second control signal can be provided by a controller capable of outputting high and low levels, a microcontroller or a single chip microcomputer.
The grounding end of the output port J3 is grounded through the electronic switch, the electronic switch acts quickly, when the first control signal and the second control signal are synchronous signals, the fact that the anode and the grounding end of the output port J3 are not connected at the same time is achieved, the electronic switch is fast, the relay acts slowly, the output port J3 is grounded firstly, and then the anode is connected with a power supply; or, the electronic switch and the relay can be triggered simultaneously by controlling the time difference between the first control signal and the second control signal, namely, the positive electrode is connected with the positive electrode of the power supply, and the grounding end is grounded and acts simultaneously, so that instant triggering can be realized.
The trigger execution circuit and the protection circuit receive the output high-low level signal of the controller through the arrangement of the first photoelectric coupler P1 and the second photoelectric coupler P2 respectively, electromagnetic interference can be reduced through photoelectric isolation, and false triggering caused by false connection of the output port J3 is avoided.
Example 2
This embodiment provides an unmanned aerial vehicle device of saving oneself, at least including the device of saving oneself and the controlling means II that the device of saving oneself of control opened, wherein controlling means II adopts embodiment 1 a trigger circuit.
Optionally, the device of saving oneself can set up to the parachute device, including first casing I and the parachute of setting in first casing I, and the bottom at the casing is fixed to the stay cord of parachute.
The control device II comprises a gas storage device arranged below the first shell I and communicated with the inner cavity of the first shell I, and a detonating cord arranged inside the gas storage device, wherein two ends of the detonating cord are respectively connected with the output port of the trigger circuit. Solid chemicals are arranged in the gas storage device, and the detonating cord detonates the solid chemicals to generate high-pressure gas so as to blow the parachute out.
When a signal output by an output port J3 of the trigger circuit enables the detonating cord to be respectively connected with the positive electrode and the negative electrode of the power supply, the gas in the gas outlet device generates high-pressure gas under the ignition action of the detonating cord, the upper end cover of the first shell I of the parachute is opened under the action of the high-pressure gas, and the generated high-pressure gas is released to open the compressed parachute arranged in the first shell I.
Optionally, as shown in fig. 2, the first casing i of this embodiment may be configured to include an upper cavity and a lower cavity, where the upper cavity is used for placing the compressed parachute, and the lower cavity is used for placing the control device. The shell of the device can be cylindrical, cuboid or round table.
Optionally, the second shell is arranged at the lower end of the first shell I in the embodiment, and the inner cavities of the first shell I and the second shell are communicated and can be connected through the clamping groove.
In some embodiments, the first control signal and the second control signal of the trigger circuit can be provided by a controller, the control device ii further comprises a main controller and an attitude sensor, the main controller is respectively connected with the attitude sensor and the trigger circuit, the first photoelectric coupler P1 and the second photoelectric coupler P2 are respectively connected with the main controller, and the attitude sensor is arranged on the unmanned aerial vehicle body and used for acquiring attitude data of the unmanned aerial vehicle. The P37 end of the first photoelectric coupler P1 and the P36 end of the second photoelectric coupler P2 are respectively connected with the output end of the main controller.
The main controller controls and outputs the first control signal and the second control signal to be in a low level or a high level according to the acquired attitude data so as to control whether the trigger circuit triggers or not. The present embodiment provides a trigger signal of the trigger circuit, which may be a trigger signal with a low selection level, and specifically, the main controller sends a low level trigger signal to the trigger execution circuit P37 and the protection circuit P36 in embodiment 1.
Furthermore, the remote control device can further comprise a wireless communication module and a remote controller, wherein the remote controller is in communication connection with the wireless communication module, and the wireless communication module is electrically connected with the main controller. The main controller can receive the control signal of the remote controller through the wireless communication module and directly output a trigger level signal to trigger the trigger circuit.
Optionally, the wireless communication module may be a 4G wireless communication module, a ZigBee wireless communication module, or a lora wireless communication module.
It can be understood that the power supply module is further included, the power supply module can be a built-in battery as a power supply, and power supplies connected with the VCC5 and the VCC8 can be provided through conversion of the power supply module.
Example 3
This embodiment provides an unmanned aerial vehicle, unmanned aerial vehicle adopts an unmanned aerial vehicle device of saving oneself in embodiment 2.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without inventive work are still within the scope of the present invention.
Claims (10)
1. A kind of trigger circuit, its characteristic is: the relay comprises an output port, a trigger protection circuit and a relay, wherein the trigger protection circuit is respectively connected with a coil end of the relay and a grounding end of the output port;
the relay at least comprises two groups of normally closed contact pins, wherein the first normally closed contact pin is connected with two ends of the output port, one pin of the second normally closed contact pin is suspended, and the other pin is connected with a power supply end; the relay also comprises a first pin and a second pin, the second pin is arranged in a suspended manner, and the first pin is connected with the anode of the output port; when the relay is in an actuation state, the contacts corresponding to the two groups of normally closed contact pins in the relay are disconnected, the contact of the pin connected with the power supply end in the second normally closed contact pin in the relay is actuated with the contact of the first pin, and the pin contact of the positive electrode connected with the output port in the first normally closed contact pin in the relay is actuated with the contact of the second pin.
2. A flip-flop circuit as claimed in claim 1, wherein: the trigger protection circuit comprises a trigger execution circuit and a protection circuit which are isolated from each other, and the trigger execution circuit is connected with the coil end of the relay and is used for connecting the positive electrode of the output port and the power supply; the protection circuit is connected with the grounding end of the output port and is used for grounding the grounding end of the output port.
3. A flip-flop circuit as claimed in claim 2, wherein: the trigger execution circuit comprises a first photoelectric coupler and a diode, the input end of the first photoelectric coupler is connected with a first control signal and the positive electrode of a power supply respectively, one end of the output end of the first photoelectric coupler is grounded, and the other end of the first photoelectric coupler is directly connected with two pins of the relay coil respectively through the diode.
4. A flip-flop circuit as claimed in claim 2, wherein: the protection circuit comprises a second photoelectric coupler and an electronic switch, one end of the electronic switch is grounded, and the other end of the electronic switch is connected with the grounding end of the output port; the input end of the second photoelectric coupler is connected with the power supply and the second control signal, and the output end of the second photoelectric coupler is connected with the electronic switch through the voltage limiting resistor.
5. A flip-flop circuit as claimed in claim 1, wherein: the relay is an 8-pin relay.
6. The utility model provides an unmanned aerial vehicle device of saving oneself which characterized by: the self-rescue device and a control device for controlling the self-rescue device to be started are included, wherein the control device adopts a trigger circuit as claimed in any one of claims 1 to 5.
7. The unmanned aerial vehicle self-rescue device of claim 6, wherein: the self-rescue device comprises a first shell and a parachute arranged in the first shell, and a pull rope of the parachute is fixed at the bottom end of the shell.
8. The unmanned aerial vehicle self-rescue device of claim 6, wherein: the control device comprises an air storage device arranged below the first shell and communicated with the inner cavity of the first shell, and a detonating cord arranged inside the air storage device, wherein two ends of the detonating cord are respectively connected with the output ports of the trigger circuit.
9. The unmanned aerial vehicle self-rescue device of claim 6, wherein: the control device also comprises a main controller and an attitude sensor, wherein the main controller is respectively connected with the attitude sensor and a trigger circuit, namely a first photoelectric coupler and a second photoelectric coupler, and the attitude sensor is arranged on the body of the unmanned aerial vehicle and is used for acquiring attitude data of the unmanned aerial vehicle;
or
The control device further comprises a wireless communication module and a remote controller, the remote controller is in communication connection with the wireless communication module, and the wireless communication module is electrically connected with the main controller.
10. An unmanned aerial vehicle, characterized by: the unmanned aerial vehicle adopts the self-rescue device of the unmanned aerial vehicle as claimed in any one of claims 6 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021320039.9U CN212980533U (en) | 2020-07-07 | 2020-07-07 | Trigger circuit, unmanned aerial vehicle device and unmanned aerial vehicle of saving oneself |
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| CN202021320039.9U CN212980533U (en) | 2020-07-07 | 2020-07-07 | Trigger circuit, unmanned aerial vehicle device and unmanned aerial vehicle of saving oneself |
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| CN212980533U true CN212980533U (en) | 2021-04-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113184197A (en) * | 2021-05-27 | 2021-07-30 | 江苏航空职业技术学院 | Unmanned aerial vehicle parachute device detonating circuit based on PX4 flight control |
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2020
- 2020-07-07 CN CN202021320039.9U patent/CN212980533U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113184197A (en) * | 2021-05-27 | 2021-07-30 | 江苏航空职业技术学院 | Unmanned aerial vehicle parachute device detonating circuit based on PX4 flight control |
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