Power-on inspection instruction definition method for intelligent power distribution equipment of electromechanical system

Abstract

The invention belongs to the technical field of power-on inspection of intelligent power distribution equipment of an electromechanical system of an airplane, and particularly relates to a power-on inspection instruction definition method for the intelligent power distribution equipment of the electromechanical system, which comprises the following steps of: defining high 16 bits of an enabling / forbidding instruction as channel numbers of all power distribution channels of the intelligent power distribution system; the high 16 bits in the reset instruction are defined as channel numbers of all power distribution channels of the intelligent power distribution system, the intelligent power distribution equipment periodically receives an enabling / forbidding instruction sent by the front-end control equipment and judges the air-ground state of an airplane, and the intelligent power distribution equipment periodically receives the reset instruction sent by the front-end control equipment and reads and judges the channel numbers; if the channel belongs to the power distribution channel controlled by the machine position, operation in reset instruction identification is executed on the channel; by splitting and defining the data bits of the power-on check instruction, the interaction principle of the power-on check instruction is defined, the unified design of intelligent power distribution equipment of an electromechanical system is facilitated, and the accuracy of power-on check control is improved.

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 a power-on inspection instruction for intelligent power distribution equipment of an electromechanical system. Background Art

[0002] The aircraft electromechanical system includes dozens of subsystems such as power supply system, hydraulic system, environmental control system, fuel system, lighting system, etc. For the control and management of these subsystems, modern aircraft usually use distributed architecture and intelligent management. Intelligent power distribution based on solid-state power distribution is the key technology to realize the intelligence, miniaturization and lightweight of electromechanical control system. Different from the traditional circuit breaker power distribution method, intelligent power distribution is directly controlled by the onboard computer, with high power density. Usually, a single small-volume intelligent power distribution device can drive more than 50 loads. After being widely used in aircraft system power distribution, hundreds of power distribution channels are usually required. Traditional circuit breaker power distribution can use the method of engraving under the circuit breaker to distinguish the distribution channels. When the system is first integrated in the early stage of aircraft manufacturing, the corresponding distribution channels can be checked one by one by plugging and unplugging the circuit breaker; and for intelligent power distribution equipment, it is also necessary to check its distribution channels one by one when the system is first integrated to reduce risks.

[0003] The intelligent power distribution system of the aircraft is checked one by one, and a front-end control device is required to display the status of each power distribution channel, and provide a human-machine interaction page to send the on or off command of each power distribution channel to the intelligent power distribution device through the airborne bus. In the current intelligent power distribution system of the aircraft, the power-on inspection command on the airborne bus is usually defined bit by bit according to the power distribution channel. This method has two disadvantages: 1. During the early design of the intelligent power distribution system, various types of power distribution channels are often adjusted. Bit definition will cause frequent changes in the bus interface, which 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 equipment usually undertakes the power distribution function of various loads of the entire aircraft and is an important equipment. Errors in the airborne 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 improve 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, so as to solve the problems of frequent adjustment of existing power distribution channels and abnormal shutdown or resetting of multiple power distribution channels due to various faults of the onboard bus.

[0006] The technical solution of the present 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 the enable or disable 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 "enable / disable command identifier", and keep 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 changes to the initial state; until the next operation, change the content of the enable or disable command;

[0009] The intelligent power distribution equipment periodically receives the enable / disable command sent by the front-end control equipment, determines the aircraft's air-ground status, and if the air-ground status is "in the air", it does not respond to any enable / disable command and sets all channels to the enabled state; if the air-ground status is "on the 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, and then send it to the corresponding device until the reset command changes to the initial state; until the next operation, change the content of the reset command;

[0011] The intelligent power distribution equipment periodically receives the reset command sent by the front-end control device, reads and determines the channel number. If it belongs to the power distribution channel controlled by this local position, it executes 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 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 bits are taken from the enable / disable instruction and defined as "enable / disable instruction flag", "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 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 command is filled in with the channel number corresponding to this operation, the "enable / disable command identifier" is filled in with "10", and the enable / disable command is maintained for 600ms and periodically sent to the intelligent distribution device until 600ms later, when the enable / disable command 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 600ms later, when the enable / disable instruction becomes Ox00000000.

[0019] Preferably, the method for determining whether the status of a distribution channel has changed is as follows: if it is a distribution channel controlled by this local position, 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 the 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 600ms later, when 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 and clarifies the interaction principles of the power-on check instructions, which is beneficial 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 solution provided by the present application, the following is a brief introduction to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present application.

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

[0025] Figure 2 A schematic diagram of enabling / disabling command definition 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 be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0028] A method for defining a power-on check instruction for an intelligent power distribution device of 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 in this unit to perform the enable / disable operation.

[0032] Preferably, two more bits are taken from the enable / disable instruction and defined as "enable / disable instruction identification", "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 command is divided into two parts. The upper 8 bits are the device number. 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 of this machine that needs to be reset. The specific definition is the same as the enable / disable command.

[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, set the initial state of the enable / disable command. When performing the enable or disable 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 "enable / disable command identifier", and keep 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 becomes the initial state. Until the next operation, change the content of the enable or disable command.

[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 command is filled in with the channel number corresponding to this operation, the "enable / disable command identifier" is filled in with "10", and the enable / disable command is maintained for 600ms and periodically sent to the intelligent distribution device until 600ms later, when the enable / disable command 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 600ms later, when the enable / disable instruction becomes Ox00000000.

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

[0040] The specific method for determining whether the status of a distribution channel has changed is as follows: if it is a distribution channel controlled by this unit, fill in the "enable / disable instruction flag" for the channel. After the channel disable / enable status changes, the disable / enable status remains unchanged before the next disable / enable instruction for the 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, set the initial state of the reset instruction. 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 instruction identifier", keep the corresponding reset instruction for a certain period of time, and then send it to the corresponding device until the reset instruction becomes the initial state. Until the next operation, change the content of the reset instruction.

[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 600ms later, when the reset instruction becomes 0x00000000.

[0044] Step S500, the intelligent power distribution device 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, executes 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.

[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, and other structures can refer to the general design. In the absence of conflict, 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 protection scope 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 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"; Set the initial state of the enable / disable command. When performing the enable or disable 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 "enable / disable command identifier", and keep 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 changes to the initial state; The content of the enable or disable command can be changed until the next operation; The intelligent power distribution equipment periodically receives the enable / disable command sent by the front-end control equipment, determines the aircraft's air-ground status, and if the air-ground status is "air", it does not respond to any enable / disable command 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; 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 changes to the initial state; Until the next operation, the content of the reset instruction can 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. If it belongs to the power distribution channel controlled by this local position, the operation in the "reset command identifier" is executed 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 inspection instructions for an electromechanical system intelligent power distribution device according to claim 1, characterized in that: 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 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 inspection instructions for an electromechanical system intelligent power distribution device according to claim 1, characterized in that: 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 inspection instructions for an electromechanical system intelligent power distribution device according to claim 1, characterized in that: 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 intelligent distribution devices 1 to N respectively; the lower 8 bits are the distribution channel number for the local reset operation.

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

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

7. The method for defining power-on inspection instructions for an intelligent power distribution device in an electromechanical system according to claim 6, characterized in that: When the enable operation is performed, 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 "10". The enable / disable command is maintained for 600ms and periodically sent to the intelligent distribution device until 600ms later, when the enable / disable command becomes 0x00000000.

8. The method for defining power-on inspection instructions for an electromechanical system intelligent power distribution device according to claim 6, characterized in that: 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 Ox00000000.

9. The method for defining power-on inspection instructions for an electromechanical system intelligent power distribution device according to claim 1, characterized in that: The specific method for checking whether the status of the power distribution channel has changed is as follows: if it is a power distribution channel controlled by this unit, fill in the "enable / disable command flag" for the channel. After the channel disable / enable status changes, the disable / enable status remains unchanged before the next disable / enable command for this channel is received; if it is not a power distribution channel controlled by this unit, the status of all power distribution channels remains unchanged.

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

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

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