A method for defining power-on inspection instructions for an electromechanical system intelligent power distribution device

Abstract

The application belongs to the technical field of power-on inspection of intelligent power distribution equipment of aircraft electromechanical system, and particularly relates to a power-on inspection instruction definition method of intelligent power distribution equipment of electromechanical system, which defines the high 16 bits of enable / disable instruction as the channel number of all power distribution channels of the intelligent power distribution system, defines the high 16 bits of reset instruction as the channel number of all power distribution channels of the intelligent power distribution system, and periodically receives the enable / disable instruction sent by the front-end control equipment, judges the air-ground state of the aircraft, periodically receives the reset instruction sent by the front-end control equipment, reads and judges the channel number, executes the operation in the "reset instruction identifier" on the channel if the channel belongs to the power distribution channel controlled by the local position, splits and defines the data bits of the power-on inspection instruction, and clearly defines the interaction principle of the power-on inspection instruction, which is beneficial to the unified type design of the intelligent power distribution equipment of electromechanical system and improves the accuracy of power-on inspection control.

Description

Technical Field

[0001] The present application belongs to the technical field of power-on inspection of intelligent power distribution equipment of an aircraft electromechanical system, and in particular relates to a method for defining power-on inspection instructions for intelligent power distribution equipment of an electromechanical system. Background Art

[0002] Aircraft electromechanical systems include dozens of subsystems, including power supply, hydraulics, environmental control, fuel, and lighting. Modern aircraft typically utilize a distributed architecture and intelligent management to control and manage these subsystems. Intelligent power distribution, primarily based on solid-state power distribution, is a key technology for achieving intelligent, miniaturized, and lightweight electromechanical control systems. Unlike traditional circuit breaker power distribution, intelligent power distribution utilizes direct output control by an onboard computer, resulting in high power density. Typically, a single, compact intelligent power distribution device can drive over 50 loads. Widespread adoption of aircraft system power distribution often requires hundreds of distribution channels. Traditional circuit breaker power distribution utilizes inscribed markings on the underside of the breaker to distinguish distribution channels. During initial system integration in the early stages of aircraft manufacturing, the corresponding distribution channels can be individually checked by plugging and unplugging circuit breakers. However, intelligent power distribution devices also require individual inspections of their distribution channels during initial system integration to mitigate risk.

[0003] The intelligent power distribution system of an aircraft is checked one by one, and a front-end control device is required to display the status of each power distribution channel. At the same time, a human-machine interaction page is provided to send the on-or-off instructions of each power distribution channel to the intelligent power distribution device via the onboard bus. In the current intelligent power distribution system of an aircraft, the power-on inspection instructions on the onboard bus are usually defined bit by bit according to the power distribution channel. This approach has two disadvantages: 1. During the early design of the intelligent power distribution system, various types of power distribution channels are often adjusted. The bit-by-bit definition will lead to frequent changes in the bus interface, which in turn will lead to frequent changes in the software of the front-end control device and the intelligent power distribution device; 2. The intelligent power distribution device usually undertakes the power distribution function of various loads of the entire aircraft and is a critical equipment. Errors in the onboard bus due to various faults may cause multiple power distribution channels to be abnormally shut down or reset at the same time, affecting the safety of the aircraft.

[0004] Therefore, how to improve the accuracy of power-on inspection control and enhance aircraft safety performance is a problem that needs to be solved. Summary of the Invention

[0005] The purpose of this application is to provide a method for defining power-on check instructions for intelligent power distribution equipment in an electromechanical system to solve the problems of frequent adjustment of existing power distribution channels and abnormal shutdown or reset of multiple power distribution channels due to various faults of the onboard bus.

[0006] The technical solution of this application is: a method for defining power-on inspection instructions for intelligent power distribution equipment in an electromechanical system, comprising:

[0007] Get the enable / disable command, define the upper 16 bits of the enable / disable command as the channel number of all distribution channels of the intelligent power distribution system, and define the "enable / disable command identifier"; get the reset command, define the upper 16 bits of the reset command as the channel number of all distribution channels of the intelligent power distribution system, and define the "reset command identifier";

[0008] Set the initial state of the enable / disable command. When performing an enable or disable operation, first obtain the corresponding power distribution channel, and fill in the corresponding power distribution channel number using the defined channel number information, fill in the "Enable / Disable Command Identifier", and then maintain the corresponding enable or disable command for a certain period of time and then send it to the corresponding device until the enable or disable command returns to the initial state. Until the next operation, the content of the enable or disable command can be changed.

[0009] The intelligent power distribution device periodically receives the enable / disable command sent by the front-end control device and determines the aircraft's air-ground status. If the air-ground status is "air", it will not respond to any enable / disable command and set all channels to the enabled state. If the air-ground status is "ground", it reads and determines whether to change the status of the power distribution channel.

[0010] Set the initial state of the reset command. During the reset operation, first obtain the corresponding power distribution channel, and fill in the corresponding power distribution channel number through the defined channel number information, fill in the "reset command identifier", and keep the corresponding reset command for a certain period of time before sending it to the corresponding device until the reset command returns to the initial state; until the next operation, the content of the reset command can be changed;

[0011] The intelligent power distribution equipment periodically receives the reset command sent by the front-end control device, reads and determines the channel number, and if it belongs to the power distribution channel controlled by this local position, performs the operation in the "reset command identifier" on the channel; if it does not belong to the power distribution channel controlled by this local position, the status of all power distribution channels remains unchanged.

[0012] Preferably, the channel number of the enable / disable instruction is divided into two parts, the upper 8 bits are the device number, and the device numbers 1 to N correspond to the intelligent distribution devices 1 to N respectively; the lower 8 bits are the distribution channel number for the local device to perform the enable / disable operation.

[0013] Preferably, two more digits are taken from the enable / disable instruction and defined as "enable / disable instruction identifier", "01" represents disable, and "10" represents enable.

[0014] Preferably, the channel number of the reset instruction is divided into two parts, the upper 8 bits are the device number, and the device numbers 1 to N correspond to the intelligent distribution devices 1 to N respectively; the lower 8 bits are the distribution channel number for the local bit to perform the reset operation.

[0015] Preferably, two more bits are taken from the reset instruction and defined as "reset instruction identifier", "00" represents no reset, and "11" represents reset.

[0016] Preferably, the initial state of the enable / disable instruction is 0x00000000.

[0017] Preferably, when performing an enabling operation, the distribution channel number of the enable / disable instruction is filled in with the channel number corresponding to this operation, and the "enable / disable instruction identifier" is filled in with "10", and the enable / disable instruction is maintained for 600ms and periodically sent to the intelligent distribution device until after 600ms, the enable / disable instruction becomes 0x00000000.

[0018] Preferably, when performing a disable operation, the distribution channel number of the enable / disable instruction is filled in with the channel number corresponding to this operation, the "enable / disable instruction identifier" is filled in with "01", and the enable / disable instruction is maintained for 600ms and sent to the VMC periodically until after 600ms, the enable / disable instruction becomes Ox00000000.

[0019] Preferably, the method for determining whether the status of the distribution channel has changed is as follows: if it is a distribution channel controlled by this local position, the "enable / disable instruction identifier" is filled in for the channel. After the channel disable / enable status changes, the disable / enable status remains unchanged before the next disable / enable instruction for this channel is received; if it is not a distribution channel controlled by this local position, the status of all distribution channels remains unchanged.

[0020] Preferably, the initial state of the reset instruction is 0x00000000.

[0021] Preferably, when performing a reset operation, the distribution channel number of the reset instruction is filled in with the channel number corresponding to this operation, the "reset instruction identifier" is filled in with "11", and the reset word is maintained for 600ms and sent to the VMC periodically until after 600ms, the reset instruction becomes 0x00000000.

[0022] The method for defining power-on check instructions for intelligent power distribution equipment in an electromechanical system of the present application splits and defines the data bits of the power-on check instructions, clarifies the interaction principles of the power-on check instructions, is conducive to the unified design of intelligent power distribution equipment in an electromechanical system, and improves the accuracy of power-on check control. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions provided by this application, the following is a brief introduction to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of this application.

[0024] Figure 1 This is a schematic diagram of the overall process of this application;

[0025] Figure 2 This is a diagram of enabling / disabling command definitions for this application;

[0026] Figure 3 This is a schematic diagram of the reset instruction definition for this application. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] A method for defining a power-on check instruction for intelligent power distribution equipment in an electromechanical system can split and define data bits of the power-on check instruction.

[0029] like Figure 1 , specifically including the following steps:

[0030] Step S100, obtain the enable / disable instruction, define the upper 16 bits of the enable / disable instruction as the channel number of all distribution channels of the intelligent distribution system, and define the "enable / disable instruction identifier"; obtain the reset instruction, define the upper 16 bits of the reset instruction as the channel number of all distribution channels of the intelligent distribution system, and define the "reset instruction identifier".

[0031] Preferably, if Figure 2 The channel number of the enable / disable command is divided into two parts. The upper 8 bits are the device number, and the device numbers 1 to N correspond to the intelligent power distribution devices 1 to N respectively; the lower 8 bits are the distribution channel number for the device to enable / disable the operation.

[0032] Preferably, two more bits are taken from the enable / disable instruction and defined as "enable / disable instruction identifier", "01" represents disable and "10" represents enable, so as to quickly identify the subsequent power-on detection status.

[0033] Preferably, if Figure 3 The channel number of the reset instruction is divided into two parts. The upper 8 bits are the device number, and the device numbers 1 to N correspond to the intelligent distribution devices 1 to N respectively; the lower 8 bits are the distribution channel number of this unit that needs to be reset. The specific definition is the same as the enable / disable instruction.

[0034] Preferably, two more bits are taken from the reset instruction and defined as "reset instruction identifier", "00" represents no reset, and "11" represents reset.

[0035] Step S200 sets the initial state of the enable / disable command. When performing an enable or disable operation, the corresponding power distribution channel is first obtained and the corresponding distribution channel number is entered using the defined channel number information. The "enable / disable command identifier" is then entered. The corresponding enable or disable command is held for a specified period of time and then sent to the corresponding device until the enable or disable command returns to its initial state. The enable or disable command content is then modified until the next operation.

[0036] Preferably, the initial state of the enable / disable instruction is 0x00000000.

[0037] Preferably, when performing an enabling operation, the distribution channel number of the enable / disable instruction is filled in with the channel number corresponding to this operation, and the "enable / disable instruction identifier" is filled in with "10", and the enable / disable instruction is maintained for 600ms and periodically sent to the intelligent distribution device until after 600ms, the enable / disable instruction becomes 0x00000000.

[0038] Preferably, when performing a disable operation, the distribution channel number of the enable / disable instruction is filled in with the channel number corresponding to this operation, the "enable / disable instruction identifier" is filled in with "01", and the enable / disable instruction is maintained for 600ms and sent to the VMC periodically until after 600ms, the enable / disable instruction becomes Ox00000000.

[0039] In step S300, the intelligent power distribution device periodically receives the enable / disable command sent by the front-end control device, determines the aircraft's air-ground status, and does not respond to any enable / disable command if the air-ground status is "air" and sets all channels to the enabled state; if the air-ground status is "ground", it reads and determines whether to change the status of the power distribution channel.

[0040] The specific method for checking whether the status of the distribution channel has changed is as follows: if it is a distribution channel controlled by this unit, fill in the "enable / disable instruction identifier" for the channel. After the channel disable / enable status changes, the disable / enable status remains unchanged before the next disable / enable instruction for this channel is received; if it is not a distribution channel controlled by this unit, the status of all distribution channels remains unchanged.

[0041] Step S400 sets the initial state of the reset command. During a reset operation, the corresponding power distribution channel is first obtained and the corresponding power distribution channel number is entered using the defined channel number information. The "reset command identifier" is then entered. The corresponding reset command is held for a certain period of time and then sent to the corresponding device until the reset command returns to the initial state. The reset command content is then modified until the next operation.

[0042] Preferably, the initial state of the reset instruction is 0x00000000.

[0043] Preferably, when performing a reset operation, the distribution channel number of the reset instruction is filled in with the channel number corresponding to this operation, the "reset instruction identifier" is filled in with "11", and the reset word is maintained for 600ms and sent to the VMC periodically until after 600ms, the reset instruction becomes 0x00000000.

[0044] In step S500, the intelligent power distribution device periodically receives the reset instruction sent by the front-end control device, reads and determines the channel number, and if it belongs to the power distribution channel controlled by this local position, performs the operation in the "reset instruction identifier" on the channel; if it does not belong to the power distribution channel controlled by this local position, the status of all power distribution channels remains unchanged.

[0045] Through the above design, the data bits of the power-on check instruction are split and defined, and the interaction principle of the power-on check instruction is clarified, which is conducive to the unified design of the intelligent power distribution equipment of the electromechanical system and improves the accuracy of the power-on check control.

[0046] Finally, it should be noted that the drawings of the embodiments disclosed in the present invention only involve structures related to the embodiments disclosed in the present invention. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the present invention can be combined with each other.

[0047] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for defining power-on inspection instructions for intelligent power distribution equipment in an electromechanical system, characterized in that: include: Get the enable / disable command, define the upper 16 bits of the enable / disable command as the channel numbers of all distribution channels in the intelligent power distribution system, and define the "enable / disable command identifier"; get the reset command, define the upper 16 bits of the reset command as the channel numbers of all distribution channels in the intelligent power distribution system, and define the "reset command identifier"; Set the initial state of the enable / disable command. When performing an enable or disable operation, first obtain the corresponding power distribution channel, enter the corresponding power distribution channel number using the defined channel number information, enter the "Enable / Disable Command Identifier", and maintain the corresponding enable or disable command for a certain period of time before sending it to the corresponding device until the enable or disable command returns to the initial state. The content of the enable or disable command will not be changed until the next operation; The intelligent power distribution device periodically receives enable / disable commands from the front-end control device and determines the aircraft's air-ground status. If the air-ground status is "air," it does not respond to any enable / disable commands and sets all channels to the enabled state. If the air-ground status is "ground," it reads and determines whether to change the status of the power distribution channels. Set the initial state of the reset command. During the reset operation, first obtain the corresponding power distribution channel, fill in the corresponding power distribution channel number through the defined channel number information, fill in the "reset command identifier", hold the corresponding reset command for a certain period of time, and then send it to the corresponding device until the reset command returns to the initial state; Until the next operation, the content of the reset instruction will be changed; The intelligent power distribution equipment periodically receives the reset command sent by the front-end control device, reads and determines the channel number, and if it belongs to the power distribution channel controlled by this local position, performs the operation in the "reset command identifier" on the channel; if it does not belong to the power distribution channel controlled by this local position, the status of all power distribution channels remains unchanged.

2. The method for defining power-on check instructions for an intelligent power distribution device in an electromechanical system according to claim 1, wherein: The channel number of the enable / disable command is divided into two parts. The upper 8 bits are the device number, and the device numbers 1 to N correspond to the intelligent power distribution devices 1 to N respectively; the lower 8 bits are the distribution channel number for the device in this unit to perform the enable / disable operation.

3. The method for defining power-on check instructions for an intelligent power distribution device in an electromechanical system according to claim 1, wherein: Two more bits are taken from the enable / disable command and defined as the "enable / disable command identifier", "01" represents disable, and "10" represents enable.

4. The method for defining power-on check instructions for an intelligent power distribution device in an electromechanical system according to claim 1, wherein: The channel number of the reset instruction is divided into two parts. The upper 8 bits are the device number, and the device numbers 1 to N correspond to the intelligent distribution devices 1 to N respectively; the lower 8 bits are the distribution channel number of this unit for the reset operation.

5. The method for defining power-on check instructions for an intelligent power distribution device in an electromechanical system according to claim 1, wherein: Two more bits are taken from the reset instruction and defined as "reset instruction identifier". "00" means no reset, and "11" means reset.

6. The method for defining power-on check instructions for an intelligent power distribution device in an electromechanical system according to claim 1, wherein: The initial state of the enable / disable instruction is 0x00000000.

7. The method for defining power-on check instructions for an intelligent power distribution device in an electromechanical system according to claim 6, wherein: When performing an enable operation, the distribution channel number of the enable / disable command is filled in with the channel number corresponding to this operation, and "10" is filled in for "Enable / Disable Command Identifier". The enable / disable command is maintained for 600ms and periodically sent to the intelligent power distribution device. After 600ms, the enable / disable command changes to 0x00000000.

8. The method for defining power-on check instructions for intelligent power distribution equipment in an electromechanical system according to claim 6, wherein: When performing a disable operation, the distribution channel number of the enable / disable command is filled in with the channel number corresponding to this operation, and the "enable / disable command identifier" is filled in with "01". The enable / disable command is maintained for 600ms and sent to the VMC periodically until 600ms later, when the enable / disable command becomes 0x00000000.

9. The method for defining power-on check instructions for intelligent power distribution equipment in an electromechanical system according to claim 1, wherein: The method for determining whether the status of a distribution channel has changed is as follows: If the channel belongs to a distribution channel controlled by this local position, fill in the "Enable / Disable Command Flag" for the channel. After the channel's disable / enable status changes, the disable / enable status remains unchanged until the next disable / enable command for this channel is received. If the channel does not belong to a distribution channel controlled by this local position, the status of all distribution channels remains unchanged.

10. The method for defining power-on check instructions for an intelligent power distribution device in an electromechanical system according to claim 1, wherein: The initial state of the reset instruction is 0x00000000.

11. The method for defining power-on check instructions for an intelligent power distribution device in an electromechanical system according to claim 10, wherein: When performing a reset operation, the power distribution channel number of the reset instruction is filled in with the channel number corresponding to this operation, and the "reset instruction identifier" is filled in with "11". The reset word is maintained for 600ms and periodically sent to the VMC. After 600ms, the reset instruction becomes 0x00000000.

Images