CN214225697U - Aircraft and control circuit of flight control system thereof - Google Patents
Aircraft and control circuit of flight control system thereof Download PDFInfo
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- CN214225697U CN214225697U CN202120393089.8U CN202120393089U CN214225697U CN 214225697 U CN214225697 U CN 214225697U CN 202120393089 U CN202120393089 U CN 202120393089U CN 214225697 U CN214225697 U CN 214225697U
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Abstract
The application relates to aircraft and flight control system's control circuit thereof, this control circuit includes: the power supply device comprises a controller, a first power supply interface used for being connected with a first power supply, a second power supply interface used for being connected with a second power supply, a switch circuit and a power supply selector used for outputting a switch control signal to the switch circuit, wherein the second power supply interface comprises a power supply end and a data transmission end connected with the controller, and the switch circuit comprises a first switch connected between the first power supply interface and the controller and a second switch connected between the power supply end of the second power supply interface and the controller. According to the embodiment of the application, under the condition that the power supply of the battery is abnormal, a standby power supply can be provided for the controller, and backup of flight control data is achieved.
Description
Technical Field
The application relates to the field of aircrafts, in particular to a control circuit of an aircraft flight control system.
Background
The flight control system of the manned aircraft executes the starting, execution and control of all flight instructions in a flight task, whether the flight control system is safe or not is directly related to the safety of the aircraft, and the power supply safety of the controller in the flight control system is the premise of ensuring the safety of the flight control system. When the power supply of the controller of the flight control system fails, the aircraft loses control. In order to ensure the safety of the aircraft, the power supply of the flight control system controller must be ensured.
SUMMERY OF THE UTILITY MODEL
In order to overcome the problems in the related art, the application provides a control circuit of a flight control system, which can provide a standby power supply for a controller under the condition of abnormal power supply of a battery.
One aspect of the present application provides a control circuit of a flight control system, including:
a controller;
the first power supply interface is used for connecting a first power supply;
the second power supply interface is used for connecting a second power supply and comprises a power supply end;
the switch circuit comprises a first switch connected between the first power supply interface and the controller and a second switch connected between a power supply end of the second power supply interface and the controller;
a power supply selector for outputting a switching control signal to the switching circuit;
the second power supply interface further comprises a data transmission end connected with the controller.
In some embodiments, the power supply selector is configured to output a switch control signal for closing the second switch and opening the first switch when the second power supply interface is selected as the current power supply interface according to a preset rule; the controller is configured to respond to a signal that the second power supply interface is connected with the second power supply, and send flight control data to a data transmission terminal of the second power supply interface according to a preset data transmission instruction or periodically.
In some embodiments, the power supply further comprises a first detection circuit connected between the first power supply interface and the power supply selector, and a second detection circuit connected between power supply terminals of the second power supply interface and between the power supply selector.
In some embodiments, at least one of the first and second detection circuits is connected to the power selector by at least three signal lines including a supply voltage detection signal line, an over-voltage detection signal line, and an under-voltage detection signal line.
In some embodiments, at least one of the first detection circuit and the second detection circuit includes a resistance voltage division detection circuit, the resistance voltage division detection circuit includes a first resistor, a second resistor, and a third resistor connected in series between the corresponding power supply interface and the ground in sequence, and an end of the first resistor connected to the corresponding power supply interface, an end of the first resistor connected to the second resistor, and an end of the second resistor connected to the third resistor are respectively connected to the power supply selector.
In some embodiments, the first power source is a battery power source and the second power source is a smart computing device.
In some embodiments, the second power supply interface is a USB interface
In some embodiments, the power supply further comprises a third power supply interface for connecting a third power supply, and the switch circuit further comprises a third switch connected between the third power supply interface and the controller;
wherein the third power source is a battery power source.
In some embodiments, the power supply selector is configured to output, to the switching circuit, a switching control signal of the first to third switches in response to a detection signal of the first to third power supplies, the switching control signal corresponding to a current power supply interface selected according to a preset power supply interface priority order and the detection signal of the first to third power supplies.
In some embodiments, the power supply further comprises a first capacitor connected between the first power supply interface and ground, a second capacitor connected between a power supply end of the second power supply interface and ground, and a third capacitor connected between the third power supply interface and ground.
Another aspect of the present application provides an aircraft having the control circuit of the flight control system as described above.
In this embodiment, the control circuit is configured with a second power supply interface for connecting to a second power supply, the second power supply interface has a power supply end and a data transmission end, the data transmission end is connected to the controller, a second switch is disposed between the power supply end and the controller, and the power supply selector can control whether to select the second power supply interface to operate by outputting a switch control signal. Through the configuration, the second power supply can be selected to provide a standby power supply for the controller under the condition that the power supply of the first power supply is abnormal, and the flight control data obtained by the controller can be transmitted outwards through the data transmission end of the second power supply interface, so that the backup of the flight control data is realized. On the other hand, whether the second power supply interface supplies power or not is managed through the power supply selector, so that the interference of the normal power supply of other power supplies when the second power supply is connected to the control circuit can be avoided.
Further, in some embodiments, after the next power supply interface is connected to the controller, the current power supply interface is disconnected from the controller, so that seamless switching of the power supply can be realized, and continuous power supply of the controller is ensured.
Furthermore, through the charging and discharging capacitors of the equipment between each power supply interface and the ground, the power supply of the current power supply can be continuously supplied to the controller through the corresponding capacitors under the conditions that the power supply fails or is insufficient in electric quantity and is not switched yet, the power failure of the controller is avoided, and the continuous power supply of the controller is ensured.
In some embodiments, the control circuit is configured with a second power supply interface for connecting the first battery, a third power supply interface for connecting the second battery, and a second power supply interface for connecting the smart computing device, the second power supply interface may be a USB interface having a power end and a data transmission end, the data transmission end is connected to the controller, a second switch is disposed between the power end and the controller, and the power selector may control whether to select the second power supply interface to operate by outputting a switch control signal. Through the configuration, double-battery power supply backup power supply can be provided for the controller, the intelligent computing equipment is selected to provide the backup power supply for the controller under the abnormal condition that the first battery and the second battery cannot normally supply power, the flight control data obtained by the controller can be transmitted to the intelligent computing equipment through the data transmission end of the USB interface, and backup of the flight control data is achieved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The foregoing and other objects, features and advantages of the application will be apparent from the following more particular descriptions of exemplary embodiments of the application, as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the application.
Fig. 1 is a schematic structural diagram illustrating a control circuit of an flight control system according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a control circuit of an aircraft control system according to another embodiment of the present application;
fig. 3 is a schematic structural diagram of a resistance voltage division detection circuit according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a control circuit of an flight control system according to another embodiment of the present application.
Detailed Description
Preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "at least one" means one or more than one, and "a plurality" means two or more than two unless specifically limited otherwise.
Unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly and can include, for example, direct connection, indirect connection through an intermediary, communication between two elements, or an interaction between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
The technical solutions of the embodiments of the present application are described in detail below with reference to the accompanying drawings.
Fig. 1 is a block diagram showing a control circuit 100 of an flight control system according to an embodiment of the present invention.
Referring to fig. 1, a control circuit 100 of the flight control system of the present embodiment includes: controller 20, first power supply interface 30, second power supply interface 32, switching circuit 40, and power supply selector 50.
The first power supply interface 30 is used for connecting a first power supply; the first power source may be a battery power source, and the connection of the first power source to the first power supply interface 30 includes a direct connection with the first power source and a connection with a converted power source after voltage boosting or voltage reducing processing is performed on the first power source.
The second power interface 32 is for connecting a second power source and includes a power terminal 36 and a data transfer terminal 38 connected to the controller 20. In this embodiment of the application, the second power supply may be an intelligent computing device, for example, an operating device (e.g., a tablet pc console) and an intelligent mobile terminal (e.g., a smart phone) that are installed in an aircraft, and the second power supply interface 32 is a data transmission interface adapted to the intelligent computing device, for example, a Universal Serial Bus (english: USB for short) interface, a Lightning interface, and the like may be used, and the USB interface may include various types of USB interfaces such as Type a, Type B, Micro a, Micro B, Mini a, Mini B, and Type C.
The switching circuit 40 includes a first switch connected between the first power interface 30 and the controller 20, and a second switch connected between the power terminal 36 of the second power interface 32 and the controller 20. In one implementation, the first switch and the second switch may be implemented by field effect transistors, but the application is not limited thereto.
The power supply selector 50 outputs a switching control signal to the switching circuit 40. In one implementation, the power selector 50 may include a power control chip configured to select the current power supply interface according to a preset rule and output a corresponding switch control signal to the switch circuit 40, for example, when the second power supply interface 32 is selected as the current power supply interface according to the preset rule, output a switch control signal that closes the second switch and opens the first switch. It is to be understood that the power selector 50 in the present application may also be a switch driving circuit composed of discrete components.
The controller 20 is configured to perform flight control, and in this embodiment, is further configured to send flight control data to the data transmission terminal 38 of the second power supply interface 32 according to a preset data transmission instruction or periodically in response to a signal that the second power supply interface 32 is connected to the second power supply. It is understood that the sending of the flight control data by the controller 20 to the second power source through the data transmission terminal 38 of the second power supply interface 32 and the supplying of the power to the controller 20 by the second power source may or may not be performed simultaneously.
In this embodiment, the control circuit is configured with a second power supply interface for connecting to a second power supply, the second power supply interface has a power supply end and a data transmission end, the data transmission end is connected to the controller, a second switch is disposed between the power supply end and the controller, and the power supply selector can control whether to select the second power supply interface to operate by outputting a switch control signal. Through the configuration, the second power supply can be selected to provide a standby power supply for the controller under the condition that the power supply of the first power supply is abnormal, and the flight control data obtained by the controller can be transmitted outwards through the data transmission end of the second power supply interface, so that the backup of the flight control data is realized. On the other hand, whether the second power supply interface supplies power or not is managed through the power supply selector, so that the interference of the normal power supply of other power supplies when the second power supply is connected to the control circuit can be avoided.
Fig. 2 shows a block diagram of a control circuit 200 of an flight control system according to another embodiment of the present application. Referring to fig. 2, the control circuit 200 of the flight control system of the present embodiment includes: the flight control system includes a controller 20, a first power supply interface 30, a second power supply interface 32, a first detection circuit 60, a second detection circuit 62, a switch circuit 40, and a power supply selector 50.
The first power supply interface 30 is used for connecting a first power supply; the first power source may be a battery power source, and the connection of the first power source to the first power supply interface 30 includes a direct connection with the first power source and a connection with a converted power source after voltage boosting or voltage reducing processing is performed on the first power source.
The second power interface 32 is for connecting a second power source and includes a power terminal 36 and a data transfer terminal 38 connected to the controller 20. In an embodiment of the present application, the second power source may be an intelligent computing device.
The switching circuit 40 includes a first switch connected between the first power interface 30 and the controller 20, and a second switch connected between the power terminal 36 of the second power interface 32 and the controller 20. In one implementation, the first switch and the second switch may be implemented by field effect transistors, but the application is not limited thereto.
The first detection circuit 60 is connected between the first power supply interface 30 and the power supply selector 50, and the second detection circuit 62 is connected between the power supply terminals 36 of the second power supply interface 32 and the power supply selector 50. It will be appreciated that the same or different detection circuits may be used for the first detection circuit 60 and the second detection circuit 62.
In one implementation, the first detection circuit 60 and the second detection circuit 62 each include a voltage detection circuit, which may be implemented by a voltage division circuit, such as a resistance division detection circuit 66, that outputs a detection signal of the first power supply and a detection signal of the second power supply to the power supply selector 50.
As shown in fig. 3, in a specific implementation, the resistance voltage division detecting circuit 66 includes a first resistor R1, a second resistor R2, and a third resistor R3 connected in series between the corresponding power supply interface and the ground in sequence, wherein one end of the first resistor R1 connected to the corresponding power supply interface, one end of the first resistor R1 connected to the second resistor R2, and one end of the second resistor R2 connected to the third resistor R3 are connected to the power selector 50 through a power supply voltage detecting signal line T1, an overvoltage detecting signal line T2, and an undervoltage detecting signal line T3, respectively, so as to output a power supply voltage detecting signal, an overvoltage detecting signal, and an undervoltage detecting signal to the power selector 50. The power selector 50 may determine whether a power supply is connected to the corresponding power supply interface and whether the connected power supply meets a preset power supply condition, such as whether the power supply circuit is normal, whether the power supply is within a power supply range between a preset high voltage threshold and a preset low voltage threshold, or the like, according to the power supply voltage detection signal, the overvoltage detection signal, and the undervoltage detection signal.
It will be appreciated that in other embodiments, other suitable detection circuits may be used to detect the power supply, such as current detection circuits. The detection signal of the power supply output from the detection circuit to the power supply selector 50 may be a part of the power supply voltage detection signal, the overvoltage detection signal, and the undervoltage detection signal, or may be another detection signal.
The power supply selector 50 may include a power supply control chip configured to select a current power supply interface according to a preset power supply interface priority order, and a detection signal of the first power supply and a detection signal of the second power supply, and output a corresponding switch control signal to the switch circuit 40. It is to be understood that in another embodiment, the power selector 50 may also be composed of discrete components.
In one implementation, the priority of the first power interface 30 is higher than the priority of the second power interface 32. If the first power supply interface 30 has a battery power supply connected thereto and the battery power supply meets the preset power supply condition, the power supply selector 50 outputs a switch control signal to the switch circuit 40 to turn on the first switch and turn off the second switch; if the first power supply interface 30 has no battery power connected or the battery power does not meet the preset power supply condition although the first power supply interface is connected, and the second power supply interface 32 has the intelligent computing device connected and the power provided by the intelligent computing device meets the preset power supply condition, the power supply selector 50 outputs a switch control signal for turning on the second switch and turning off the first switch to the switch circuit 40.
The controller 20 is configured to perform flight control, and in this embodiment, is further configured to send flight control data to the data transmission terminal 38 of the second power supply interface 32 when the second power supply interface 32 is the current power supply interface. In one implementation, the controller 20 is connected to the power supply selector 50, and configured to send the flight control data to the data transmission terminal 38 of the second power supply interface 32 in response to the indication signal sent by the power supply selector 50 that the second power supply interface 32 is the current power supply interface, and transmit the flight control data to the smart computing device via the second power supply interface 32 for data backup. The flight control data includes, for example, flight control data, attitude data, control data, and the like.
In this embodiment, the control circuit is configured with a second power supply interface for connecting to a second power supply, the second power supply interface has a power supply end and a data transmission end, the data transmission end is connected to the controller, a second switch is disposed between the power supply end and the controller, and the power supply selector can control whether to select the second power supply interface to operate by outputting a switch control signal. Through the configuration, the second power supply can be selected to provide a standby power supply for the controller under the condition that the power supply of the first power supply is abnormal, and the flight control data obtained by the controller can be transmitted outwards through the data transmission end of the second power supply interface, so that the backup of the flight control data is realized. On the other hand, whether the second power supply interface supplies power or not is managed through the power supply selector, so that the interference of the normal power supply of other power supplies when the second power supply is connected to the control circuit can be avoided.
Fig. 4 shows a block diagram of a control circuit 400 of an flight control system according to another embodiment of the present application. Referring to fig. 4, the control circuit 400 of the flight control system of the present embodiment includes: controller 20, first power supply interface 30, second power supply interface 32, third power supply interface 34, first detection circuit 60, second detection circuit 62, third detection circuit 64, switching circuit 40, and power supply selector 50.
The first power supply interface 30 is used for connecting a first power supply, and the third power supply interface 34 is used for connecting a third power supply; the first power source and the third power source may be battery power sources, the first power supply interface 30 may be connected to the first power source, and may be connected to the first power source directly or after the first power source is boosted or reduced, and the third power supply interface 34 may be connected to the third power source.
The second power interface 32 is for connecting a second power source and includes a power terminal 36 and a data transfer terminal 38 connected to the controller 20. In an embodiment of the present application, the second power source may be an intelligent computing device.
The switching circuit 40 includes a first switch connected between the first power interface 30 and the controller 20, a second switch connected between the power terminal 36 of the second power interface 32 and the controller 20, and a third switch connected between the power terminal 36 of the third power interface 34 and the controller 20. In one implementation, the first to third switches may be implemented by field effect transistors, but the present application is not limited thereto.
The first detection circuit 60 is connected between the first power supply interface 30 and the power supply selector 50, the second detection circuit 62 is connected between the power supply terminal 36 of the second power supply interface 32 and the power supply selector 50, and the third detection circuit 64 is connected between the power supply terminal 36 of the third power supply interface 34 and the power supply selector 50. It will be appreciated that the same or different circuits may be used for the first sensing circuit 60, the second sensing circuit 62 and the third sensing circuit 64.
In one implementation, the first to third detection circuits 60 to 64 respectively include a voltage detection circuit 66, which may be implemented by a voltage division circuit, such as a resistance voltage division detection circuit, and outputs detection signals of the first to third power supplies to the power supply selector 50.
It will be appreciated that in other embodiments, other suitable sensing circuits may be used to sense the power supply, such as current sensing circuits. The detection signal of the power supply output from the detection circuit to the power supply selector 50 may be a part of the power supply voltage detection signal, the overvoltage detection signal, and the undervoltage detection signal, or may be another detection signal.
The power supply selector 50 may include a power supply control chip configured to select one of the first power supply interface 30 to the third power supply interface 34 as a current power supply interface according to a preset power supply interface priority order and detection signals of the first power supply to the third power supply, and output a corresponding switch control signal to the switch circuit 40.
In one implementation, the first power interface 30 and the third power interface 34 have a higher priority than the second power interface 32, and the first power interface 30 has a higher priority than the third power interface 34.
In one implementation, selecting one of the first power interface 30 to the third power interface 34 as the current power interface according to a preset priority order of the power interfaces and the detection signals of the first power supply to the third power supply includes:
in order of priority of the first power supply interface 30 to the third power supply interface 34, the following steps are performed: judging whether a power supply corresponding to the power supply interface at the current level is connected with the control circuit and accords with preset power supply conditions, if so, determining that the power supply interface at the current level is the current power supply interface, if not, taking the power supply interface at the next priority order as the power supply interface at the current level, and returning to the step of judging whether the power supply corresponding to the power supply interface at the current level is connected with the control circuit and accords with the preset power supply conditions.
In another implementation manner, selecting one of the first power supply interface 30 to the third power supply interface 34 as the current power supply interface according to a preset priority order of the first power supply interface 30 to the third power supply interface 34 and respective detection signals of the first power supply to the third power supply includes:
the method comprises the steps of obtaining respective detection signals of the first power supply to the third power supply, judging whether the first power supply interface 30 to the third power supply interface 34 are respectively connected with the power supply and whether the connected power supply meets preset power supply conditions according to the obtained detection signals, and determining the current power supply interface according to the preset priority sequence of the first power supply interface 30 to the third power supply interface 34 under the condition that at least two connected power supplies meet the preset power supply conditions. For example, in a specific example, only the first power supply interface 30 of the three power supply interfaces is connected with a power supply, and neither the second power supply interface 32 nor the third power supply interface 34 is connected with a power supply, and at this time, the second power supply interface 32 and the third power supply interface 34 are equivalent to being grounded, the power supply selector 50 may consider that the power supplies of the second power supply and the third power supply are both abnormal, determine that the first power supply interface 30 is the current power supply interface, and output a switch control signal for closing the first switch and opening the second switch and the third switch, so that the first power supply supplies power; for another example, the first power supply interface 30 and the third power supply interface of the three power supply interfaces are both connected to a battery power supply, and both of them meet preset power supply conditions, the power supply selector 50 determines that the first power supply interface 30 is the current power supply interface according to the priority order of the three power supply interfaces, outputs a switch control signal for turning on the first switch, turning off the second switch, and turning off the third switch, and when the first power supply does not meet the preset power supply conditions, for example, no output voltage or a voltage lower than a preset threshold value, the power supply selector 50 switches the third power supply interface 34 to the current power supply interface, and outputs a switch control signal for turning on the third switch, turning off the first switch, and turning off the second switch, so that the third power supply supplies power.
In one implementation, when switching the power supply interfaces, after the third power supply interface 34 is connected to the controller 20, the first power supply interface 30 is disconnected from the controller 20, so as to implement seamless switching of the power supply and ensure continuous power supply of the controller 20.
In some embodiments, the control circuit further comprises a first capacitor connected between the first power interface 30 and ground, a second capacitor connected between the power supply terminal 36 of the second power interface 32 and ground, and a third capacitor connected between the third power interface 34 and ground. Through setting up first electric capacity to third electric capacity, can be in the power failure (for example battery connecting wire is not hard up, power supply interface is not hard up, the battery explodes etc.) or the electric quantity not enough and not switching yet the condition under, continue to supply power for the controller through corresponding electric capacity, avoid the controller outage.
The controller 20 is configured to perform flight control, and in this embodiment, is further configured to send flight control data to the data transmission terminal 38 of the second power supply interface 32 when the second power supply interface 32 is the current power supply interface. In one implementation, the controller 20 is connected to the power supply selector 50, and configured to send the flight control data to the data transmission terminal 38 of the second power supply interface 32 in response to the indication signal sent by the power supply selector 50 that the second power supply interface 32 is the current power supply interface, and transmit the flight control data to the smart computing device via the second power supply interface 32 for data backup. The flight control data includes, for example, flight control data, attitude data, control data, and the like.
In the embodiment of the present application, the power selector 50 may obtain power management data according to the detection signals of the first to third detection circuits 60 to 64, and send the power management data to the controller 20, where the power management data includes a current power supply interface, state information of a battery, and the like, and the battery state information includes, for example, a battery voltage value, a remaining power value, an output current value, and the like.
After obtaining the power management data, the controller 20 may make a flight decision according to the power management data, the flight status information, and a preset decision rule. The flight status information may include, for example, altitude, speed, location, etc.
In one embodiment, the controller 20 is configured to make flight decisions based on flight status information of the aircraft, power supply remaining capacity, and preset decision rules; the flight decision data may include whether to alarm or not, whether to force the aircraft to automatically return or land, and the like. For example, in one embodiment, whether the aircraft can safely land is determined according to the flying height of the aircraft, the remaining power of the power supply and a preset decision rule, if the aircraft can safely land but the remaining power of the battery is lower than a preset threshold, an alarm is triggered to prompt a user or force the aircraft to automatically land, and if the aircraft cannot safely land, a higher-level safeguard measure is triggered.
In another embodiment, the controller 20 is configured to make flight decisions based on flight status information of the aircraft, flight mission, power supply remaining capacity, and preset decision rules. For example, in a specific example, whether the power supply remaining capacity can complete the flight mission is determined according to the flight altitude, the flight speed, the flight mission, the power supply remaining capacity and a preset decision rule of the aircraft, if the power supply remaining capacity can complete the flight mission, no alarm is given, and if the power supply remaining capacity cannot complete, an alarm is triggered to prompt a user or force the aircraft to automatically land or return.
In another embodiment, the controller 20 is configured to periodically obtain the power supply remaining capacity, and obtain flight decision data based on the power supply remaining capacity. For example, in one embodiment, the controller 20 periodically obtains the remaining power of the power source, and sends an alarm to prompt the user or make the aircraft automatically perform a predetermined safeguard, such as automatic return or landing, when the remaining power of the power source reaches a predetermined alarm threshold.
In another embodiment, the controller 20 is configured to periodically obtain the power supply remaining capacity, determine a corresponding alert level according to the power supply remaining capacity, and make flight decisions according to the determined alert level. For example, in one embodiment, the lower the power supply remaining capacity, the higher the warning level, and when the warning level determined from the power supply remaining capacity is the highest level, the aircraft is forced to automatically land or return.
In this embodiment, the control circuit is configured with a second power supply interface for connecting the first battery, a third power supply interface for connecting the second battery, and a second power supply interface for connecting the intelligent computing device, where the second power supply interface may be a USB interface having a power source end and a data transmission end, the data transmission end is connected to the controller, a second switch is disposed between the power source end and the controller, and the power source selector may control whether to select the second power supply interface to operate by outputting a switch control signal. Through the configuration, double-battery power supply backup power supply can be provided for the controller, the intelligent computing equipment is selected to provide the backup power supply for the controller under the abnormal condition that the first battery and the second battery cannot normally supply power, the flight control data obtained by the controller can be transmitted to the intelligent computing equipment through the data transmission end of the USB interface, and backup of the flight control data is achieved. On the other hand, whether the second power supply interface supplies power or not is managed through the power supply selector, so that the interference of the normal power supply of other power supplies when the second power supply is connected to the control circuit can be avoided.
The present application also provides an aircraft, which may be, for example, an electric manned aircraft, including a control circuit as described above.
The aspects of the present application have been described in detail hereinabove with reference to the accompanying drawings. In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments. Those skilled in the art should also appreciate that the acts and modules referred to in the specification are not necessarily required in the present application. In addition, it can be understood that the steps in the method of the embodiment of the present application may be sequentially adjusted, combined, and deleted according to actual needs, and the modules in the device of the embodiment of the present application may be combined, divided, and deleted according to actual needs.
Having described embodiments of the present application, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the spirit of scope of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (11)
1. A control circuit of a flight control system, comprising:
a controller;
the first power supply interface is used for connecting a first power supply;
the second power supply interface is used for connecting a second power supply and comprises a power supply end;
the switch circuit comprises a first switch connected between the first power supply interface and the controller and a second switch connected between a power supply end of the second power supply interface and the controller;
a power supply selector for outputting a switching control signal to the switching circuit;
the second power supply interface further comprises a data transmission end connected with the controller.
2. The control circuit of claim 1, wherein:
the power supply selector is configured to output a switch control signal for closing the second switch and opening the first switch when the second power supply interface is selected as the current power supply interface according to a preset rule;
the controller is configured to respond to a signal that the second power supply interface is connected with the second power supply, and send flight control data to a data transmission terminal of the second power supply interface according to a preset data transmission instruction or periodically.
3. The control circuit of claim 2, wherein:
the power supply circuit further comprises a first detection circuit connected between the first power supply interface and the power supply selector and a second detection circuit connected between power supply ends of the second power supply interface and the power supply selector.
4. The control circuit of claim 3, wherein:
at least one of the first detection circuit and the second detection circuit is connected with the power supply selector through at least three signal wires, and the at least three signal wires comprise a power supply voltage detection signal wire, an overvoltage detection signal wire and an undervoltage detection signal wire.
5. The control circuit of claim 3, wherein:
at least one of the first detection circuit and the second detection circuit comprises a resistance voltage division detection circuit, the resistance voltage division detection circuit comprises a first resistor, a second resistor and a third resistor which are sequentially connected in series between a corresponding power supply interface and the ground, the first resistor is connected with one end of the corresponding power supply interface, one end of the first resistor is connected with the second resistor, and one end of the second resistor is connected with the third resistor, and the one end of the second resistor is connected with the power supply selector.
6. The control circuit of claim 2, wherein:
the first power supply is a battery power supply, and the second power supply is intelligent computing equipment.
7. The control circuit of claim 6, wherein the second power supply interface is a USB interface.
8. The control circuit of any of claims 1 to 7, wherein:
the switch circuit further comprises a third power supply interface used for being connected with a third power supply, and a third switch connected between the third power supply interface and the controller;
wherein the third power source is a battery power source.
9. The control circuit of claim 8, wherein:
the power supply selector is configured to output, to the switch circuit, switch control signals of the first to third switches in response to detection signals of the first to third power supplies, the switch control signals corresponding to a current power supply interface selected in accordance with a preset power supply interface priority order and the detection signals of the first to third power supplies.
10. The control circuit of claim 8, wherein:
the power supply circuit further comprises a first capacitor connected between the first power supply interface and the ground, a second capacitor connected between a power supply end of the second power supply interface and the ground, and a third capacitor connected between the third power supply interface and the ground.
11. An aircraft having a control circuit as claimed in any one of claims 1 to 10.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120393089.8U CN214225697U (en) | 2021-02-22 | 2021-02-22 | Aircraft and control circuit of flight control system thereof |
| PCT/CN2021/118304 WO2022174580A1 (en) | 2021-02-22 | 2021-09-14 | Aircraft, and control circuit of flight control system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120393089.8U CN214225697U (en) | 2021-02-22 | 2021-02-22 | Aircraft and control circuit of flight control system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214225697U true CN214225697U (en) | 2021-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120393089.8U Active CN214225697U (en) | 2021-02-22 | 2021-02-22 | Aircraft and control circuit of flight control system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214225697U (en) |
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2021
- 2021-02-22 CN CN202120393089.8U patent/CN214225697U/en active Active
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