CN112165185A - In-situ wireless energy supplementing system and method for wireless sensor network node of aircraft - Google Patents
In-situ wireless energy supplementing system and method for wireless sensor network node of aircraft Download PDFInfo
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- CN112165185A CN112165185A CN202011000070.9A CN202011000070A CN112165185A CN 112165185 A CN112165185 A CN 112165185A CN 202011000070 A CN202011000070 A CN 202011000070A CN 112165185 A CN112165185 A CN 112165185A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/20—Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/40—The network being an on-board power network, i.e. within a vehicle
- H02J2310/44—The network being an on-board power network, i.e. within a vehicle for aircrafts
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- Computer Networks & Wireless Communication (AREA)
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- Mobile Radio Communication Systems (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
An in-situ wireless energy supplementing system for a wireless sensor network node of an aircraft comprises a ground terminal, a plurality of ground power transmitting antenna arrays and a plurality of on-device power receiving modules; the power receiving module on each device is arranged in an aircraft cabin; the ground terminal is a microwave source with an information acquisition function and a communication interface, receives the charging state information of each wireless sensor, generates a control instruction according to a set constraint condition and outputs the control instruction to each ground power transmitting antenna array; the ground power transmitting antenna array converts the electric energy into microwave energy to radiate towards a designated area in the cabin, and receives a control instruction sent by the ground terminal to adjust the shape and the direction of a wave beam; the power receiving module on each device rectifies and converts the received microwave energy into direct current to supply power to the corresponding wireless sensor. The invention solves the problem that a large number of wireless sensor nodes on an aircraft cannot be or are difficult to disassemble after being installed, so that charging maintenance cannot be carried out.
Description
Technical Field
The invention provides a wireless energy supplementing system and a wireless energy supplementing method, and belongs to the field of electrical and electronic design.
Background
A large number of sensors are generally installed in the aircraft for measuring various parameters of the aircraft, and the traditional wired measurement mode is gradually replaced by a wireless sensing network due to the problems that cables are heavy, complex and difficult to install and maintain and the like. Meanwhile, the current wireless sensors are powered by chemical batteries carried by the wireless sensors, and once the wireless sensors are installed on an aircraft, it is difficult or impossible to charge and maintain all sensor nodes one by one in a wired mode.
Disclosure of Invention
The technical problem solved by the invention is as follows: the invention provides an in-situ wireless energy supplementing system and method for a wireless sensor network node of an aircraft, aiming at realizing in-situ electric energy supplementing of a wireless sensor in a ground active microwave wireless energy supplementing mode and solving the problem that a large number of wireless sensor nodes on the aircraft cannot be assembled or are difficult to disassemble, so that charging maintenance cannot be carried out.
The technical scheme of the invention is as follows: an in-situ wireless energy supplementing system for a wireless sensor network node of an aircraft comprises a ground terminal, a plurality of ground power transmitting antenna arrays and a plurality of on-device power receiving modules;
the power receiving module on each device is arranged in an aircraft cabin;
the ground terminal is a microwave source with an information acquisition function and a communication interface, receives the charging state information of each wireless sensor, generates a control instruction according to a set constraint condition and outputs the control instruction to each ground power transmitting antenna array;
the ground power transmitting antenna array converts the electric energy into microwave energy to radiate towards a designated area in the cabin, and receives a control instruction sent by the ground terminal to adjust the shape and the direction of a wave beam;
the power receiving module on each device rectifies and converts the received microwave energy into direct current to supply power to the corresponding wireless sensor.
In the initial state, all the wireless sensors are in a dormant state and periodically send the charge state of the battery of the wireless sensors to the outside;
the ground terminal and the ground power transmitting antenna array are manually or remotely controlled to be started, the ground power transmitting antenna array is in a standby state after the ground terminal is started, and after the ground terminal receives the state information of the wireless sensors, whether all the wireless sensors need to be charged or not is judged:
if all the wireless sensor battery states are full states, the ground terminal does not output any instruction;
if the battery state of the wireless sensor is an unfilled state, the ground terminal autonomously generates a charging control strategy and sends a control instruction to each ground power transmitting antenna array; after receiving the control command, the ground power transmitting antenna array generates a ground-pointing microwave electromagnetic field with a specified shape; and after receiving the microwave energy, the power receiving module on the device rectifies and outputs charging current for the wireless sensor battery, and supplies power for the wireless sensor in real time.
The charging control strategy is as follows:
firstly, an initial phase is given to each microwave antenna unit of a ground power transmitting antenna array through a ground terminal, and then the relation between the phase of a first frequency microwave transmitting unit and the charge state of a wireless sensor battery is established by utilizing the charge state information of each wireless sensor battery returned by a wireless sensor signal link;
when the electric quantity of any wireless sensor battery is insufficient, the ground terminal can automatically adjust the phase of the first frequency of each antenna transmitting unit, so that the scanning of a first wave beam is realized, and the wireless sensor battery is charged;
when any wireless sensor battery is continuously in an unfilled state and cannot be supplied with electric energy, establishing a relationship between the phase of the second-frequency microwave transmitting unit and the charge state of the wireless sensor battery, automatically adjusting the phase of the second-frequency microwave of each antenna transmitting unit by the ground terminal, realizing scanning of a second wave beam, and charging the wireless sensor battery which is continuously in an unfilled state and cannot be supplied with electric energy.
An in-situ wireless energy supplementing method for an aircraft wireless sensor network node comprises the following steps:
step one, in an initial state, controlling all wireless sensors to be in a dormant state, and periodically sending the charge state of a battery of the wireless sensors to the outside;
step two, the ground terminal and the ground power transmitting antenna array are manually or remotely controlled to be started, the ground power transmitting antenna array is in a standby state after the ground terminal is started, and the ground terminal judges whether all the wireless sensors need to be charged or not after receiving the state information of the wireless sensors:
if all the wireless sensor battery states are full states, the ground terminal does not output any instruction;
if the battery state of the wireless sensor is not fully charged, the ground terminal autonomously generates a charging control strategy and sends control instructions to each ground power transmitting antenna array, the ground power transmitting antenna arrays generate a ground-oriented microwave electromagnetic field with a specified shape after receiving the control instructions, and the power receiving module on the device rectifies and outputs charging current for the battery of the wireless sensor after receiving microwave energy, so that the wireless sensor is powered in real time.
The charging control strategy is as follows:
firstly, an initial phase is given to each microwave antenna unit of a ground power transmitting antenna array through a ground terminal, and then the relation between the phase of a first frequency microwave transmitting unit and the charge state of a wireless sensor battery is established by utilizing the charge state information of each wireless sensor battery returned by a wireless sensor signal link;
when the electric quantity of any wireless sensor battery is insufficient, the ground terminal can automatically adjust the phase of the first frequency of each antenna transmitting unit, so that the scanning of a first wave beam is realized, and the wireless sensor battery is charged;
when any wireless sensor battery is continuously in an unfilled state and cannot be supplied with electric energy, establishing a relationship between the phase of the second-frequency microwave transmitting unit and the charge state of the wireless sensor battery, automatically adjusting the phase of the second-frequency microwave of each antenna transmitting unit by the ground terminal, realizing scanning of a second wave beam, and charging the wireless sensor battery which is continuously in an unfilled state and cannot be supplied with electric energy.
Compared with the prior art, the invention has the beneficial effects that:
(1) the invention provides a system solution for charging a wireless sensor in an active microwave energy supply mode in a closed metal cabin, which improves the maintainability of the wireless sensor.
(2) The invention provides a method for synthesizing space power by a multi-transmitting antenna array design, which realizes power radiation to any target position in space.
(3) The invention provides an in-situ wireless energy supplementing system for a wireless sensor network node of an aircraft, which is used for performing in-situ electric energy supplementing on a large number of wireless sensor nodes which are installed in a distributed manner in a cabin in a ground active microwave wireless energy supplementing mode, and solves the problem that a wireless sensor on the aircraft cannot be charged and maintained after being installed.
Drawings
FIG. 1 is a block diagram of an in-situ wireless energy supplementing system of a wireless sensor network node of a wireless sensor network of the invention;
FIG. 2 is a flowchart of the working process of the in-situ wireless energy supplementing method for the wireless sensor network node of the aircraft according to the present invention;
fig. 3 is a view showing a charging control strategy according to the present invention.
Detailed Description
The invention is further illustrated by the following examples.
An in-situ wireless energy supplementing system for wireless sensor network nodes of an aircraft converts electric energy into microwave energy to radiate to a designated area in a cabin, and meanwhile, each wireless sensor is provided with a microwave energy receiving device to convert the microwave energy into the electric energy to be stored and used. In order to solve the standing wave problem caused by the same frequency, the system designs two frequencies, namely a high frequency and a low frequency, wherein the high frequency is defined as a first frequency, and the low frequency is defined as a second frequency.
The in-situ wireless energy supplementing system of the wireless sensor network nodes of the aircraft comprises the following components:
as shown in fig. 1, the system includes a ground terminal, a plurality of ground power transmit antenna arrays (phased array antennas), and a plurality of on-board power receive modules. A plurality of on-board power receiving modules are mounted within the aircraft cabin.
The ground terminal is a microwave source with an information acquisition function and a communication interface, receives the charging state information of the wireless sensor, generates a control instruction according to the task requirement (such as constraint conditions of total charging time, transmitting power and the like) and outputs the control instruction to each ground power transmitting antenna array;
the ground power transmitting antenna array converts electric energy into microwave energy to radiate to a designated area in the cabin, and receives a control command sent by the ground terminal to adjust the shape and the direction of a wave beam;
and the power receiving module on the device rectifies and converts the received microwave energy into direct current to supply power to the corresponding wireless sensor.
As shown in fig. 2, the in-situ wireless energy supplementing method for the aircraft wireless sensor network node includes the following steps:
in the initial state, all wireless sensors on the device are in a dormant state, but the charge state of the battery of the device is periodically sent outwards;
the ground terminal and the ground power transmitting antenna array are manually or remotely controlled to be started, the ground power transmitting antenna array is in a standby state after the ground terminal is started, and after the ground terminal receives the state information of the wireless sensors, whether all the wireless sensors on the ground terminal need to be charged or not is judged.
If all the wireless sensor battery states are full states, the ground terminal does not output any instruction;
if the battery state of the wireless sensor is an unfilled state, the ground terminal autonomously generates a charging control strategy and sends a control instruction to each ground power transmitting antenna array;
after receiving the control command, the ground power transmitting antenna array generates a ground-pointing microwave electromagnetic field with a specified shape;
and after receiving the microwave energy, the power receiving module on the device carries out rectification output to charge the battery of the wireless sensor and simultaneously supplies power to the wireless sensor in real time.
A charging control method of an in-situ wireless energy supplementing system of an aircraft wireless sensor network node is shown in fig. 3;
the method comprises the steps of firstly giving an initial phase to each microwave antenna unit of a ground power transmitting antenna array through a ground terminal, and then establishing the relationship between the phase of a first frequency microwave transmitting unit and the charge state of a wireless sensor battery by utilizing the charge state information of each wireless sensor battery returned by a wireless sensor signal link.
When the electric quantity of a certain wireless sensor battery is insufficient, the ground terminal can automatically adjust the phase of the first frequency of each antenna transmitting unit, so that the scanning of the first wave beam is realized, and the wireless sensor battery with low electric quantity is charged in a centralized manner.
When a certain wireless sensor battery is continuously in an unfilled state and electric energy supply is not available, the relationship between the phase of the second-frequency microwave transmitting unit and the charge state of the wireless sensor battery is established, and the ground terminal can automatically adjust the phase of the second-frequency microwave of each antenna transmitting unit, so that scanning of a second wave beam is realized, and the wireless sensor battery is charged in a centralized manner.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make variations and modifications of the present invention without departing from the spirit and scope of the present invention by using the methods and technical contents disclosed above.
Claims (5)
1. An in-situ wireless energy supplementing system for a wireless sensor network node of an aircraft is characterized by comprising a ground terminal, a plurality of ground power transmitting antenna arrays and a plurality of on-device power receiving modules;
the power receiving module on each device is arranged in an aircraft cabin;
the ground terminal is a microwave source with an information acquisition function and a communication interface, receives the charging state information of each wireless sensor, generates a control instruction according to a set constraint condition and outputs the control instruction to each ground power transmitting antenna array;
the ground power transmitting antenna array converts the electric energy into microwave energy to radiate towards a designated area in the cabin, and receives a control instruction sent by the ground terminal to adjust the shape and the direction of a wave beam;
the power receiving module on each device rectifies and converts the received microwave energy into direct current to supply power to the corresponding wireless sensor.
2. The in-situ wireless energy supplementing system for the wireless sensing network node of the aircraft according to claim 1, wherein in an initial state, all wireless sensors are in a dormant state and periodically send the state of charge of a battery of the wireless sensors to the outside;
the ground terminal and the ground power transmitting antenna array are manually or remotely controlled to be started, the ground power transmitting antenna array is in a standby state after the ground terminal is started, and after the ground terminal receives the state information of the wireless sensors, whether all the wireless sensors need to be charged or not is judged:
if all the wireless sensor battery states are full states, the ground terminal does not output any instruction;
if the battery state of the wireless sensor is an unfilled state, the ground terminal autonomously generates a charging control strategy and sends a control instruction to each ground power transmitting antenna array; after receiving the control command, the ground power transmitting antenna array generates a ground-pointing microwave electromagnetic field with a specified shape; and after receiving the microwave energy, the power receiving module on the device rectifies and outputs charging current for the wireless sensor battery, and supplies power for the wireless sensor in real time.
3. The in-situ wireless energy supplementing system for the aircraft wireless sensor network node according to claim 2, wherein the charging control strategy is as follows:
firstly, an initial phase is given to each microwave antenna unit of a ground power transmitting antenna array through a ground terminal, and then the relation between the phase of a first frequency microwave transmitting unit and the charge state of a wireless sensor battery is established by utilizing the charge state information of each wireless sensor battery returned by a wireless sensor signal link;
when the electric quantity of any wireless sensor battery is insufficient, the ground terminal can automatically adjust the phase of the first frequency of each antenna transmitting unit, so that the scanning of a first wave beam is realized, and the wireless sensor battery is charged;
when any wireless sensor battery is continuously in an unfilled state and cannot be supplied with electric energy, establishing a relationship between the phase of the second-frequency microwave transmitting unit and the charge state of the wireless sensor battery, automatically adjusting the phase of the second-frequency microwave of each antenna transmitting unit by the ground terminal, realizing scanning of a second wave beam, and charging the wireless sensor battery which is continuously in an unfilled state and cannot be supplied with electric energy.
4. An in-situ wireless energy supplementing method for an aircraft wireless sensor network node is characterized by comprising the following steps:
step one, in an initial state, controlling all wireless sensors to be in a dormant state, and periodically sending the charge state of a battery of the wireless sensors to the outside;
step two, the ground terminal and the ground power transmitting antenna array are manually or remotely controlled to be started, the ground power transmitting antenna array is in a standby state after the ground terminal is started, and the ground terminal judges whether all the wireless sensors need to be charged or not after receiving the state information of the wireless sensors:
if all the wireless sensor battery states are full states, the ground terminal does not output any instruction;
if the battery state of the wireless sensor is not fully charged, the ground terminal autonomously generates a charging control strategy and sends control instructions to each ground power transmitting antenna array, the ground power transmitting antenna arrays generate a ground-oriented microwave electromagnetic field with a specified shape after receiving the control instructions, and the power receiving module on the device rectifies and outputs charging current for the battery of the wireless sensor after receiving microwave energy, so that the wireless sensor is powered in real time.
5. The in-situ wireless energy supplementing method for the aircraft wireless sensor network node according to claim 4, wherein the charging control strategy is as follows:
firstly, an initial phase is given to each microwave antenna unit of a ground power transmitting antenna array through a ground terminal, and then the relation between the phase of a first frequency microwave transmitting unit and the charge state of a wireless sensor battery is established by utilizing the charge state information of each wireless sensor battery returned by a wireless sensor signal link;
when the electric quantity of any wireless sensor battery is insufficient, the ground terminal can automatically adjust the phase of the first frequency of each antenna transmitting unit, so that the scanning of a first wave beam is realized, and the wireless sensor battery is charged;
when any wireless sensor battery is continuously in an unfilled state and cannot be supplied with electric energy, establishing a relationship between the phase of the second-frequency microwave transmitting unit and the charge state of the wireless sensor battery, automatically adjusting the phase of the second-frequency microwave of each antenna transmitting unit by the ground terminal, realizing scanning of a second wave beam, and charging the wireless sensor battery which is continuously in an unfilled state and cannot be supplied with electric energy.
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Cited By (1)
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| CN115021428A (en) * | 2022-07-08 | 2022-09-06 | 清华大学 | System and method for realizing wireless charging and mobile equipment |
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