CN110017737B - Power distribution method and device based on aircraft - Google Patents
Power distribution method and device based on aircraft Download PDFInfo
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- CN110017737B CN110017737B CN201910234736.8A CN201910234736A CN110017737B CN 110017737 B CN110017737 B CN 110017737B CN 201910234736 A CN201910234736 A CN 201910234736A CN 110017737 B CN110017737 B CN 110017737B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B15/00—Self-propelled projectiles or missiles, e.g. rockets; Guided missiles
- F42B15/01—Arrangements thereon for guidance or control
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Abstract
The invention relates to the technical field of aircrafts, in particular to an aircraft-based power distribution method and device, wherein the method comprises the steps of obtaining multi-path power distribution information; decoding and logically converting the power distribution information to obtain a control command corresponding to a unit to be distributed; and distributing power to each unit to be distributed based on the control command. The whole power distribution process adopts a full-digital power distribution mode, and compared with an analog circuit power distribution unit based on a relay as an execution component, the power distribution unit saves the use of the relay on the premise of realizing power distribution, and reduces the volume and the weight of power distribution equipment. Meanwhile, the received power distribution information is decoded and logically converted, so that a control command corresponding to a unit to be distributed can be extracted, multi-path simultaneous power distribution can be realized simultaneously, and all power distribution can be carried out by acquiring the power distribution information once.
Description
Technical Field
The invention relates to the technical field of aircrafts, in particular to an aircraft-based power distribution method and device.
Background
The power distribution system is a key component of an aircraft (such as a carrier rocket and a missile system), and has the main functions of distributing power, turning points, cutting off power, igniting initiating explosive devices and the like according to certain requirements and sequences for actual requirements in the launching process of the rocket (missile).
Traditional distribution unit adopts and is based on using the relay to constitute as the analog circuit of executive component, and the relay that is applied to in the distribution unit mainly is electromagnetic relay, and electromagnetic relay's volume is great will lead to the great, the weight of the volume of distribution unit heavy to will put forward higher requirement to the thrust of aircraft.
Disclosure of Invention
In view of this, embodiments of the present invention provide an aircraft-based power distribution method and apparatus, so as to solve the problem of a large volume of a power distribution unit.
According to a first aspect, embodiments of the present invention provide an aircraft-based power distribution method, comprising:
acquiring multi-path power distribution information;
decoding and logically converting the power distribution information to obtain a control command corresponding to a unit to be distributed;
and distributing power to each unit to be distributed based on the control command.
According to the aircraft-based power distribution method provided by the embodiment of the invention, the whole power distribution process adopts a full-digital power distribution mode, and compared with an analog circuit power distribution unit based on a relay as an execution component, the method saves the use of the relay on the premise of realizing power distribution and reduces the volume and weight of power distribution equipment. Meanwhile, the received power distribution information is decoded and logically converted, so that a control command corresponding to a unit to be distributed can be extracted, multi-path simultaneous power distribution can be realized simultaneously, and all power distribution can be carried out by acquiring the power distribution information once.
With reference to the first aspect, in a first implementation manner of the first aspect, the distributing the power to the unit to be distributed based on the control command includes:
acquiring state information of the unit to be distributed; the status information comprises at least one of voltage, current, and temperature;
judging the abnormal power distribution state of the state information;
and distributing power to the unit to be distributed based on the judgment result and the control command.
According to the aircraft-based power distribution method provided by the embodiment of the invention, by judging the abnormal power distribution state of the unit to be distributed, when the power distribution is abnormal, the power distribution is convenient to process in time, so that the safety and the reliability of the aircraft are ensured.
With reference to the first implementation manner of the first aspect, in a second implementation manner of the first aspect, before the step of determining that the power distribution state is abnormal, the method further includes:
sampling each state information according to a preset time sequence to obtain parallel sampling data corresponding to the state information;
filtering the parallel sampled data;
and framing the filtered parallel sampling data in sequence to obtain serial state information.
According to the aircraft-based power distribution method provided by the embodiment of the invention, the abnormal power distribution state is judged on the state information in a serial-parallel combination mode, so that the resource usage amount is reduced, and the operation efficiency is improved.
With reference to the second implementation manner of the first aspect, in a third implementation manner of the first aspect, the filtering the parallel sample data includes:
filtering the parallel sampling data for preset times to obtain a filtering result of the preset times;
calculating the average value of all the filtering results; wherein the average is the filtered parallel sample data.
With reference to the first embodiment of the first aspect, in a fourth embodiment of the first aspect, the method further includes:
storing the state information and the judgment result;
and sending the state information and the judgment result to an upper computer at preset time intervals.
According to the aircraft-based power distribution method provided by the embodiment of the invention, the state information and the judgment result of the abnormal power distribution state are stored, and the data are important data for self-test and provide data support for single-board self-test, so that external test equipment can be omitted.
With reference to the first aspect, in a fifth embodiment of the first aspect, the method further includes:
acquiring the power conversion state of the unit to be distributed; wherein the power conversion state comprises power conversion completion and power conversion incompletion;
and when the power conversion state of the unit to be power-distributed is power conversion completion, locking the power distribution control function of the unit to be power-distributed.
According to the aircraft-based power distribution method provided by the embodiment of the invention, the power distribution safety and reliability of the unit to be distributed are ensured through the power distribution self-locking function.
With reference to the first aspect, in a sixth implementation manner of the first aspect, the method further includes:
when a take-off blocking signal is received, power distribution of all the units to be distributed is forbidden;
and when a bus power-off command is received, the power distribution switch of the unit to be power distributed is disconnected and the power distribution information is stopped being received.
According to a second aspect, embodiments of the present invention also provide an aircraft-based power distribution apparatus, comprising:
the acquisition module is used for acquiring multi-path power distribution information;
the conversion module is used for decoding and logically converting the power distribution information to obtain a control command corresponding to a unit to be distributed;
and the power distribution module is used for distributing power to each unit to be distributed based on the control command.
According to the aircraft-based power distribution device provided by the embodiment of the invention, the whole power distribution process adopts a full-digital power distribution mode, and compared with an analog circuit power distribution unit based on a relay as an execution component, the aircraft-based power distribution device omits the use of the relay on the premise of realizing power distribution and reduces the volume and weight of power distribution equipment. Meanwhile, the received power distribution information is decoded and logically converted, so that a control command corresponding to a unit to be distributed can be extracted, multi-path simultaneous power distribution can be realized simultaneously, and all power distribution can be carried out by acquiring the power distribution information once.
According to a third aspect, an embodiment of the present invention further provides a power distribution apparatus, including:
a memory and a processor, the memory and the processor being communicatively coupled to each other, the memory having stored therein computer instructions, the processor executing the computer instructions to perform the aircraft-based power distribution method of the first aspect of the present invention or any of the first aspects.
According to a fourth aspect, embodiments of the present invention also provide a computer-readable storage medium having stored thereon computer instructions for causing a computer to perform the first aspect of the invention, or the aircraft-based power distribution method of any of the first aspects.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a flow chart of an aircraft-based power distribution method according to an embodiment of the invention;
FIG. 2 is a flow chart of an aircraft-based power distribution method according to an embodiment of the invention;
FIG. 3 is a flow chart of an aircraft-based power distribution method according to an embodiment of the invention;
FIG. 4 is a block diagram of an aircraft-based power distribution apparatus according to an embodiment of the invention;
FIG. 5 is a software module block diagram of an aircraft-based power distribution method according to an embodiment of the invention;
FIG. 6 is a flow chart of a filtering method according to an embodiment of the invention;
FIG. 7 is a schematic diagram of a filtered data stream according to an embodiment of the invention;
fig. 8 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the aircraft-based power distribution method described in the embodiment of the present invention may be applied to power distribution control systems of all rockers (bombs) and tests on the power distribution control systems, and the power distribution of a launch vehicle is described in detail below as an example.
In accordance with an embodiment of the present invention, there is provided an aircraft-based power distribution method embodiment, it is noted that the steps illustrated in the flowchart of the figure may be performed in a computer system, such as a set of computer-executable instructions, and that while a logical order is illustrated in the flowchart, in some cases the steps illustrated or described may be performed in an order different than presented herein.
In the present embodiment, an aircraft-based power distribution method is provided, which may be used in the above power distribution equipment, and fig. 1 is a flowchart of an aircraft-based power distribution method according to an embodiment of the present invention, as shown in fig. 1, where the flowchart includes the following steps:
and S11, acquiring multi-path power distribution information.
The power distribution equipment acquires multi-path power distribution information from an upper computer connected with the power distribution equipment, wherein the multi-path power distribution information can be understood as n paths of power distribution information, the n paths of power distribution information comprise an independent power distribution address and a power distribution command of each path of a power distribution module, a specific path of the n paths is selected through the power distribution address to distribute power, and whether the power distribution is executed or not is determined according to the power distribution command.
And S12, decoding and logically converting the power distribution information to obtain a control command corresponding to the unit to be distributed.
The power distribution equipment decodes and logically converts the power distribution information into a control command corresponding to the unit to be distributed, namely converts the control command into a corresponding power distribution state control port to control the power distribution state, and can simultaneously carry out multi-path power distribution.
Specifically, the physical layer transmission of data may be performed according to LVDS differential pairs, where each pair has only two data lines, transmits data by bit, receives bit data and decodes the bit data into an address and data, where one frame of data has only one base address, and the remaining data is sequentially stored in an offset address manner. The specific communication frame format is that the upper computer firstly sends the equipment number, the read-write mark and the communication data quantity. The distribution board receives the signal and then replies a command to the upper computer, and the upper computer sends or reads the data content of the response after receiving the command.
When a frame of data is received, a receiving completion signal is sent out, after the signal is received by the power distribution equipment, all data contents in a power distribution command frame ram are read in sequence, the address value is the sub-address received by the power distribution module, the address bit sub-address of the data in the ram is added with the offset address corresponding to the data position in the ram, after the data contents in the ram are read out, the absolute address corresponding to the corresponding data contents is converted according to the sub-address and the offset address, a power distribution operation command is carried out for one time according to the operation command corresponding to the absolute address, and a plurality of different power distribution operation commands can be executed at one time because of more data in the ram.
The power distribution equipment is externally provided with five pairs of interfaces with LVDS as physical layers, the values of three paths are compared each time, and the three paths are one path, two paths and three paths in sequence. The judgment is performed in a two-out manner, and the execution is performed in a majority state. If one of the three paths is not taken, the data of the fourth path is taken again for judgment and execution, and so on. If only three paths of data in the five paths can not be obtained, the main/standby working mode is entered, for example, only the first path of data and the second path of data are obtained. And executing by using the first path of data, performing hot backup on the second path of data, and judging and reading according to the second path of data once the first path of data cannot be acquired. And finally, storing the judged data into a power distribution data cache ram, and sending a power distribution receiving completion signal.
And S13, distributing the power to the units to be distributed based on the control command.
And after the power distribution equipment obtains the control command corresponding to the unit to be distributed, distributing power to each unit to be distributed based on the control command.
According to the aircraft-based power distribution method provided by the embodiment, the whole power distribution process adopts a full-digital power distribution mode, and compared with an analog circuit power distribution unit which is based on a relay as an execution component, the aircraft-based power distribution method omits the use of the relay on the premise of realizing power distribution, and reduces the volume and weight of power distribution equipment. Meanwhile, the received power distribution information is decoded and logically converted, so that a control command corresponding to a unit to be distributed can be extracted, multi-path simultaneous power distribution can be realized simultaneously, and all power distribution can be carried out by acquiring the power distribution information once.
In the present embodiment, an aircraft-based power distribution method is provided, which can be used in the above power distribution equipment, and fig. 2 is a flowchart of the aircraft-based power distribution method according to the embodiment of the present invention, as shown in fig. 2, the flowchart includes the following steps:
and S21, acquiring multi-path power distribution information.
Please refer to S11 in fig. 1, which is not described herein again.
And S22, decoding and logically converting the power distribution information to obtain a control command corresponding to the unit to be distributed.
Please refer to S12 in fig. 1, which is not described herein again.
And S23, distributing the power to the units to be distributed based on the control command.
The power distribution equipment also combines the state information of each unit to be distributed, such as voltage, current and the like, when distributing power to each unit to be distributed. Specifically, the method comprises the following steps:
and S231, acquiring the state information of the unit to be distributed.
Wherein the state information includes at least one of a voltage, a current, and a temperature. In the following description, the state information is described as an example of the bus voltage, the bus current, and the temperature of the unit to be distributed.
The power distribution equipment acquires the state information of the unit to be distributed in real time so as to timely process the power distribution fault in the power distribution process. For example, the state information of the unit to be distributed comprises m bus voltage signals, n bus current signals and k temperature signals.
And S232, sampling the state information according to a preset time sequence to obtain parallel sampling data corresponding to the state information.
The distribution equipment samples the bus voltage, the bus current and the temperature in different sampling periods, can convert the bus voltage, the bus current and the temperature into 16 paths of parallel data, and outputs digital voltage, digital current and digital temperature signals for subsequent filtering. The sampling of each state information can be realized by using an AD sampling module so as to complete the simultaneous acquisition of a plurality of paths of voltage signals, current signals and temperature signals.
Specifically, m lines of digital voltage signals are obtained after sampling corresponding to m lines of bus voltage signals; corresponding to the n bus current signals, obtaining n digital current signals after sampling; and obtaining k paths of digital temperature signals after sampling corresponding to the k paths of temperature signals.
And S233, filtering the parallel sampling data.
The power distribution equipment adopts 3 filtering modules to respectively filter the digital voltage signal, the digital current signal and the digital temperature signal, and the filtering modules can be respectively called as a voltage filtering module, a current filtering module and a temperature filtering module. Referring to fig. 7, during filtering, the power distribution device sends start signals start _ fu, start _ fi, and start _ ft to the voltage filtering module, the current filtering module, and the temperature filtering module at regular time intervals, and each filtering module completes a filtering operation after receiving the start signal and sends filtering completion signals finish _ fu, finish _ fi, and finish _ ft.
Optionally, since the voltage filtering module, the current filtering module and the temperature filtering module have the same working principle, the filtering process of the voltage filtering module is described as an example. Referring to fig. 6, the filtering may include the following steps:
(1) and filtering the parallel sampling data for preset times to obtain a filtering result of the preset times.
(2) Calculating the average value of all the filtering results; wherein the average is the filtered parallel sample data.
Specifically, the voltage filtering module needs to filter m digital voltage signals, and filter each digital voltage signal for a preset number of times. The preset number may be 32, and the specific preset number may be specifically set according to an actual situation, which is not limited herein. Therefore, the whole filtering process is:
and sequentially extracting each path of digital voltage signal Un (k), wherein n is used for representing the path number of the current filtered digital voltage signal, Sum is the accumulated Sum of the filtering modules, and k represents the current filtering times. And filtering each path of digital voltage signal to obtain a filtering result after each filtering is finished, accumulating all the filtering results, and then solving an average value to obtain the filtering result corresponding to each path of digital voltage signal. That is, Un _ out is Sum/32.
And S234, framing the filtered parallel sampling data in sequence to obtain serial state information.
After primary filtering is completed, the power distribution equipment carries out parallel-serial conversion on the three filtered signals in sequence for framing again, and then serial state information can be obtained.
And S235, judging the abnormal power distribution state of the state information.
The power distribution equipment judges the abnormal power distribution state of the serial state information, namely judges whether the voltage, the current and the temperature exceed corresponding preset values or other abnormal conditions exist, and the obtained abnormal judgment result is used for subsequent power distribution execution.
And S236, distributing power to the unit to be distributed based on the judgment result and the control command.
In the power distribution process, the power distribution equipment needs to combine the judgment result obtained in S235, that is, the judgment result of the abnormal power distribution state, in addition to executing the control command to distribute power to the unit to be distributed. For example, if the temperature is abnormal, the power distribution operation can be stopped for the corresponding unit to be distributed in the power distribution process, and corresponding abnormal information is fed back to the upper computer to wait for a further power distribution command of the upper computer.
According to the power distribution method based on the aircraft, the abnormal power distribution state of the unit to be distributed is judged, and when the power distribution is abnormal, the power distribution is convenient to process in time, so that the safety and the reliability of the aircraft are guaranteed. Furthermore, the abnormal power distribution state is judged by adopting a serial-parallel combination mode to the state information, so that the resource usage amount is reduced, and the operation efficiency is improved.
As an optional implementation manner of this embodiment, the method further includes:
(1) and storing the state information and the judgment result.
(2) And sending the state information and the judgment result to the upper computer at preset time intervals.
By storing the state information and the judgment result of the abnormal power distribution state, the data is important data for self-test, and data support is provided for single-board self-test, so that external test equipment can be omitted.
In the present embodiment, an aircraft-based power distribution method is provided, which can be used in the above power distribution equipment, and fig. 3 is a flowchart of the aircraft-based power distribution method according to the embodiment of the present invention, as shown in fig. 3, where the flowchart includes the following steps:
and S31, acquiring multi-path power distribution information.
Please refer to S21 in fig. 2 for details, which are not described herein.
And S32, decoding and logically converting the power distribution information to obtain a control command corresponding to the unit to be distributed.
Please refer to S22 in fig. 2 for details, which are not described herein.
And S33, distributing the power to the units to be distributed based on the control command.
Please refer to S23 in fig. 2 for details, which are not described herein.
And S34, acquiring the power conversion state of the unit to be distributed.
Wherein, the power conversion state comprises that the power conversion is completed and the power conversion is not completed.
Specifically, the power conversion state of the unit to be powered on can monitor whether the bus voltage is powered on through the resistor and the optical mos, and after the voltage is powered on, the optical mos is switched on, and the digital IO of the power distribution equipment receives a high level. No voltage exists on the bus, no power distribution is performed, and at the moment, the digital IO of the power distribution equipment receives low level.
And S35, when the power transfer state of the unit to be distributed is power transfer completion, locking the power distribution control function of the unit to be distributed.
And the power distribution equipment determines that the power is converted well by judging the state of the filtered digital IO. When the digital IO of the power distribution equipment receives high level, the logic part of the power distribution equipment locks all power distribution control functions, and all power distribution commands are forbidden.
According to the aircraft-based power distribution method provided by the embodiment, the power distribution safety and reliability of the unit to be distributed are ensured through the self-locking function.
As an optional implementation manner of this embodiment, the power distribution method further includes:
and when the takeoff blocking signal is received, power distribution of all the units to be distributed is forbidden.
And when a bus power-off command is received, the power distribution switch of the unit to be distributed is disconnected and the power distribution information is stopped being received.
In this embodiment, an aircraft-based power distribution device is further provided, and the device is used to implement the foregoing embodiments and preferred embodiments, and the description of the device that has been already made is omitted. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
The present embodiment provides an aircraft-based power distribution apparatus, as shown in fig. 4, including:
and the obtaining module 41 is used for obtaining the multi-path power distribution information.
And the conversion module 42 is configured to decode and logically convert the power distribution information to obtain a control command corresponding to the unit to be power distributed.
And the power distribution module 43 is configured to distribute power to each unit to be distributed based on the control command.
The aircraft-based power distribution device provided by the embodiment adopts a full-digital power distribution mode in the whole power distribution process, saves the use of a relay on the premise of realizing power distribution and reduces the volume and weight of power distribution equipment compared with an analog circuit power distribution unit based on the relay as an execution component. Meanwhile, the received power distribution information is decoded and logically converted, so that a control command corresponding to a unit to be distributed can be extracted, multi-path simultaneous power distribution can be realized simultaneously, and all power distribution can be carried out by acquiring the power distribution information once.
The aircraft-based power distribution apparatus in this embodiment is presented in the form of a functional unit, where the unit refers to an ASIC circuit, a processor and memory that execute one or more software or fixed programs, and/or other devices that may provide the above-described functionality.
Further functional descriptions of the modules are the same as those of the corresponding embodiments, and are not repeated herein.
As a specific embodiment of the aircraft-based power distribution method according to the present invention, since the method is implemented by each program module in the power distribution device, the power distribution method is described in detail in the form of program modules in the following description. As shown in fig. 5, the execution of the aircraft-based power distribution method can be divided into a digital communication module, a power distribution logic module, a power distribution execution module, a state acquisition module, a serial filtering module, a storage module, and a fault determination and protection module on a software level.
Specifically, the digital communication module realizes communication between the upper computer and a power distribution logic module and a storage module in the power distribution equipment (taking FPGA as an example), receives power distribution command information through communication with the upper computer, and sends various power distribution state information. The communication signals comprise n paths of power distribution signals, take-off blocking signals, power conversion completion signals, bus power-off signals and the like. The n paths of power distribution signals comprise an independent power distribution address and a power distribution command of each path of the power distribution module, specific paths of the n paths are selected for power distribution through the power distribution addresses, and whether power distribution is executed or not is determined according to the power distribution command. The takeoff blocking signal is enabling information of power distribution action, and all power distribution signals are forbidden after the takeoff blocking signal is received. The bus power-off signal is power-off information in emergency, and after receiving a bus power-off command, all power distribution switches are switched off and do not receive any power distribution information. And the digital communication module carries out CRC redundancy check and frame header check on the instruction signal sent by the upper computer and sends the instruction signal into the power distribution logic module. And the power distribution state signal received from the storage module is sent to an upper computer through calculation of CRC redundancy check. The digital communication module can realize various communication protocols such as 422, 232, can, Mlvds and the like according to requirements, all functions are realized by hardware, and the digital communication module is stable and reliable and has good anti-interference performance.
And the state acquisition module receives bus voltage, bus current, an inter-board temperature signal of the FPGA and a time sequence recovery signal. The bus voltage, the bus current and the inter-plate temperature signals are sampled in different sampling periods, converted into 16-bit parallel data, and output digital voltage, digital current and digital temperature signals which are sent into a serial filtering module. The AD sampling module realizes the control of the AD converter and finishes the simultaneous acquisition of a plurality of paths of voltage signals, current signals and temperature signals. And sampling the time sequence back-sampling signal in real time to obtain the power distribution action command and the power distribution time sequence state of each path.
And the logic power distribution module receives a power distribution communication command and an emergency power-off IO signal of the digital communication module. The power distribution logic module carries out decoding and logic conversion according to power distribution information transmitted by the power distribution communication command, converts the power distribution information into a corresponding power distribution state control port to control the power distribution state, and can carry out multi-path power distribution simultaneously. And after receiving the power failure IO signal, carrying out emergency power failure, and turning off each power distribution state control port at the highest priority.
The serial filtering module consists of a filtering time sequence control module, m voltage filtering modules, n current filtering modules, k temperature filtering modules and a data framing module. As shown in fig. 7, multiple bus voltage, bus current and inter-board temperature signals from the state acquisition module are received. Respectively sent to the m voltage filtering modules, the n current filtering modules and the k temperature filtering modules. The filtering time sequence module respectively sends starting signals start _ fu, start _ fi and start _ ft to the m paths of voltage filtering modules, the n paths of current filtering modules and the k paths of temperature filtering modules at fixed time intervals, each filtering module completes one filtering operation after receiving the starting signals, sends finish _ fu, finish _ fi and finish _ ft to the filtering time sequence control module and the data framing module, and simultaneously sends filtered voltage, current and temperature signals to the data framing module. After the data framing module receives finish _ fu, finish _ fi and finish _ ft, the three filtered signals are sequentially subjected to parallel-serial conversion for re-framing. The filtering timing sequence module receives finish _ fu, finish _ fi and finish _ ft to send the next starting signal.
Fig. 6 is a calculation flow chart of the filtering module, because the bus voltage, the bus current and the temperature filtering mode are the same, only the bus voltage filtering flow is described, where n is how many total paths of voltages, Sum is the accumulated Sum variable of the filter, k is the number of times of filtering operation is being performed on the nth path, Un _ out is the output of the nth path of filtering operation, and ns is how many total paths of voltage signals.
The storage module is an on-chip flash with the size of 1Kbt, and the one-frame content of the state acquisition module is stored and read so as to be used in self-testing. And under the control of a counter of the storage module, the stored content is sent to the digital communication module in a whole frame at a certain frequency.
The fault judging and protecting module receives the bus voltage, the bus current and the inter-board temperature signals from the monitoring module, judges the abnormal power distribution state and outputs fault information to the power distribution executing module and the storage module. The fault judging and protecting module can judge various abnormal states such as voltage abnormality, current abnormality, temperature abnormality and the like, and collects state signals in the fault state.
And the power distribution execution module receives the power distribution signal transmitted by the power distribution logic module, controls the corresponding power distribution IO port and performs corresponding power distribution action. And the power distribution execution module simultaneously receives the fault protection signals from the judgment and fault protection module and carries out protection control on the power distribution IO with the highest priority.
In the whole working process, a group of bus voltage, bus current and temperature signal data acquired by each fixed period state acquisition module are subjected to digital filtering and framing again through the serial filtering module. And the data is sent into a storage module and a fault judging and protecting module, the fault judging and protecting module judges real-time state information, and once abnormity is found, the power distribution executing module is controlled to carry out protection at the highest priority. The digital communication module receives communication signals transmitted by the upper computer, including n paths of power distribution commands, take-off blocking signals, emergency power-off signals and power transfer completion signals, and directly transmits the signals to the power distribution logic module. And the digital communication module simultaneously sends the power distribution state information and the fault state information stored in the storage module to the upper computer at fixed intervals. The power distribution logic module indexes execution requirements of different power distribution commands according to address information and command information in the power distribution command signal, and sends the power distribution requirements to the power distribution execution module for power distribution.
This embodiment possesses each state information that can save among the power distribution module to transmit state information to the host computer via digital communication module, can send the control that the distribution order directly carried out the distribution through the host computer simultaneously, consequently possess solitary test and debugging function, improved production and debugging efficiency. Meanwhile, various state information in the power distribution module can be collected and monitored in real time, if the abnormal state is found, the power distribution execution module can perform protection action at the first time, record and store the abnormal state and transmit the abnormal state back through the communication module for subsequent checking.
An embodiment of the present invention further provides a power distribution apparatus having the power distribution apparatus based on an aircraft shown in fig. 4.
Referring to fig. 8, fig. 8 is a schematic structural diagram of a power distribution apparatus according to an alternative embodiment of the present invention, as shown in fig. 8, the power distribution apparatus may include: at least one processor 81, such as a CPU (Central Processing Unit), at least one communication interface 83, memory 84, and at least one communication bus 82. Wherein a communication bus 82 is used to enable the connection communication between these components. The communication interface 83 may include a Display (Display) and a Keyboard (Keyboard), and the optional communication interface 83 may also include a standard wired interface and a standard wireless interface. The Memory 84 may be a high-speed RAM Memory (volatile Random Access Memory) or a non-volatile Memory (non-volatile Memory), such as at least one disk Memory. The memory 84 may optionally be at least one memory device located remotely from the processor 81. Wherein the processor 81 may be in connection with the apparatus described in fig. 4, an application program is stored in the memory 84, and the processor 81 calls the program code stored in the memory 84 for performing any of the above-mentioned method steps.
The communication bus 82 may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus. The communication bus 82 may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown in FIG. 8, but this is not intended to represent only one bus or type of bus.
The memory 84 may include a volatile memory (RAM), such as a random-access memory (RAM); the memory may also include a non-volatile memory (english: non-volatile memory), such as a flash memory (english: flash memory), a hard disk (english: hard disk drive, abbreviated: HDD) or a solid-state drive (english: SSD); the memory 84 may also comprise a combination of the above types of memory.
The processor 81 may be a Central Processing Unit (CPU), a Network Processor (NP), or a combination of CPU and NP.
The processor 81 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a Programmable Logic Device (PLD), or a combination thereof. The PLD may be a Complex Programmable Logic Device (CPLD), a field-programmable gate array (FPGA), a General Array Logic (GAL), or any combination thereof.
Optionally, the memory 84 is also used to store program instructions. The processor 81 may invoke program instructions to implement the aircraft-based power distribution method as shown in the embodiments of fig. 1-3 of the present application.
Embodiments of the present invention further provide a non-transitory computer storage medium storing computer-executable instructions that may perform the aircraft-based power distribution method in any of the above method embodiments. The storage medium may be a magnetic Disk, an optical Disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a Flash Memory (Flash Memory), a Hard Disk (Hard Disk Drive, abbreviated as HDD), a Solid State Drive (SSD), or the like; the storage medium may also comprise a combination of memories of the kind described above.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.
Claims (8)
1. An aircraft-based power distribution method, comprising:
acquiring multi-path power distribution information;
decoding and logically converting the power distribution information to obtain a control command corresponding to a unit to be distributed;
distributing power to each unit to be distributed based on the control command;
wherein the distributing the power to the unit to be distributed based on the control command comprises:
acquiring state information of the unit to be distributed; the status information comprises at least one of voltage, current, and temperature;
judging the abnormal power distribution state of the state information;
distributing power to the unit to be distributed based on the judgment result and the control command;
before the step of determining that the power distribution state of the state information is abnormal, the method further includes:
sampling each state information according to a preset time sequence to obtain parallel sampling data corresponding to the state information;
filtering the parallel sampled data;
and framing the filtered parallel sampling data in sequence to obtain serial state information.
2. The method of claim 1, wherein the filtering the parallel sample data comprises:
filtering the parallel sampling data for preset times to obtain a filtering result of the preset times;
calculating the average value of all the filtering results; wherein the average is the filtered parallel sample data.
3. The method of claim 1, further comprising:
storing the state information and the judgment result;
and sending the state information and the judgment result to an upper computer at preset time intervals.
4. The method of claim 1, further comprising:
acquiring the power conversion state of the unit to be distributed; wherein the power conversion state comprises power conversion completion and power conversion incompletion;
and when the power conversion state of the unit to be power-distributed is power conversion completion, locking the power distribution control function of the unit to be power-distributed.
5. The method of claim 1, further comprising:
when a take-off blocking signal is received, power distribution of all the units to be distributed is forbidden;
and when a bus power-off command is received, the power distribution switch of the unit to be power distributed is disconnected and the power distribution information is stopped being received.
6. An aircraft-based power distribution apparatus, comprising:
the acquisition module is used for acquiring multi-path power distribution information;
the conversion module is used for decoding and logically converting the power distribution information to obtain a control command corresponding to a unit to be distributed;
the power distribution module is used for distributing power to the units to be distributed based on the control command, wherein the power distribution to the units to be distributed based on the control command comprises the following steps: acquiring state information of the unit to be distributed; the status information comprises at least one of voltage, current, and temperature; judging the abnormal power distribution state of the state information; distributing power to the unit to be distributed based on the judgment result and the control command; before the step of determining that the power distribution state of the state information is abnormal, the method further includes: sampling each state information according to a preset time sequence to obtain parallel sampling data corresponding to the state information; filtering the parallel sampled data; and framing the filtered parallel sampling data in sequence to obtain serial state information.
7. An electrical distribution apparatus, comprising:
a memory and a processor communicatively coupled to each other, the memory having stored therein computer instructions, the processor executing the computer instructions to perform the aircraft-based power distribution method of any of claims 1-5.
8. A computer-readable storage medium having stored thereon computer instructions for causing a computer to perform the aircraft-based power distribution method of any of claims 1-5.
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| CN201910234736.8A CN110017737B (en) | 2019-03-26 | 2019-03-26 | Power distribution method and device based on aircraft |
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| CN201910234736.8A CN110017737B (en) | 2019-03-26 | 2019-03-26 | Power distribution method and device based on aircraft |
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| FR2900637B1 (en) * | 2006-05-04 | 2009-02-13 | Airbus France Sas | DEVICE AND METHOD FOR MANAGING THE ACTIVATION OR DEACTIVATION OF ELECTRICAL POWER SUPPLIES IN ELECTRICAL SYSTEMS ON BOARD AN AIRCRAFT |
| GB201015760D0 (en) * | 2010-09-21 | 2010-10-27 | Airbus Uk Ltd | Aircraft power distribution network |
| US9677864B1 (en) * | 2014-11-19 | 2017-06-13 | Orbital Research Inc. | Closed, self-contained ballistic apogee detection module and method |
| GB2557292B (en) * | 2016-12-05 | 2020-09-02 | Ge Aviat Systems Ltd | Method and apparatus for operating a power system architecture |
| US10601218B2 (en) * | 2017-05-25 | 2020-03-24 | Ge Aviation Systems Llc | Power management and fault detection system |
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