阅读说明：本技术 一种机载胎压实时监测设备 (Airborne tire pressure real-time monitoring equipment ) 是由 范祥辉 杨建茜 史岩 于 2021-09-08 设计创作，主要内容包括：本发明属于机载无线胎压实时监测方法,具体涉及一种机载胎压实时监测设备。本发明通过安装在轮胎上的无线胎压传感器与安装在起落架舱内的网关节点或者手持数据监测设备共同完成胎压等传感器信息的实时获取及地面状态下的传感器信息获取。能够极大降低飞机轮胎胎压、胎温及加速度信息获取的难度,减少胎压监测耗费时间,并降低胎压监控过程中的漏气风险。通过实时获取胎压信息,可以及时给出轮胎维护建议,监控记录到的大量胎压数据,通过分析可以提升轮胎使用寿命。(The invention belongs to an airborne wireless real-time tire pressure monitoring method, and particularly relates to airborne real-time tire pressure monitoring equipment. The invention can obtain the information of the sensors such as the tire pressure and the like in real time and the information of the sensors under the ground state through the wireless tire pressure sensor arranged on the tire and the gateway node or the handheld data monitoring equipment arranged in the undercarriage cabin. The difficulty of obtaining the tire pressure, the tire temperature and the acceleration information of the airplane tire can be greatly reduced, the time consumed for monitoring the tire pressure is reduced, and the air leakage risk in the tire pressure monitoring process is reduced. Through obtaining tire pressure information in real time, can in time give the tire and maintain the suggestion, a large amount of tire pressure data of control record can promote tire life through the analysis.)

1. An airborne tire pressure real-time monitoring device, comprising:

the tire pressure sensors are arranged on the tires of the warplane, are used for monitoring the tire pressure, the temperature and the acceleration of the tires and are provided with wireless transmission equipment; the wireless transmission equipment is used for wirelessly transmitting the measurement data of the tire pressure sensor;

the plurality of communication nodes are respectively arranged on the undercarriage and are respectively used as wireless gateways to receive wireless data of the wireless transmission devices which are put on the undercarriage together and complete communication management of a wireless subnet;

and the remote interface units respectively transmit the data of each communication node to a backbone network.

2. The real-time tire pressure monitoring device of claim 1, wherein: the data wireless transmission mode of the tire pressure sensor comprises the following steps:

making a link response according to the query message frame of the communication node and then entering a data sending state;

and if the inquiry signal frame is not received within the threshold time, entering an active request link state.

3. The real-time tire pressure monitoring device of claim 1, wherein: the communication node communicates with the tire pressure sensor through a command-responsive communication protocol.

4. The real-time tire pressure monitoring device of claim 2, wherein: the real-time monitoring equipment also comprises ground monitoring equipment; the ground monitoring equipment is used for receiving the sending data of the wireless transmission equipment.

5. The real-time tire pressure monitoring device of claim 4, wherein: the ground monitoring equipment is also used for sending the inquiry information frame.

6. The real-time tire pressure monitoring device of claim 1, wherein: the communication node is also used for receiving the communication requirement of the remote interface unit and sending the communication requirement to the tire pressure sensor; the tire pressure sensor is configured to perform data acquisition and data wireless transmission according to the communication requirement.

7. The real-time tire pressure monitoring device of claim 1, wherein: the communication node is connected with the remote interface unit in a bridging mode.

8. The real-time tire pressure monitoring device of claim 1, wherein: the tire pressure sensor is arranged at an air tap of the tire.

Technical Field

The invention belongs to an airborne wireless real-time tire pressure monitoring method, and particularly relates to airborne real-time tire pressure monitoring equipment.

Background

The aircraft tire is generally filled with nitrogen, the tire pressure, the tire temperature and other information of the tire are critical to the safety of the aircraft, the proper tire pressure can improve the landing performance of the aircraft, the unsafe risk in the landing process is reduced, meanwhile, the abrasion of the aircraft tire can be reduced, the service life of the tire is prolonged, and the operation cost of the aircraft is reduced. Ensure that tire pressure work in reasonable scope, prevent that the too high danger that leads to blowing out of tire pressure, prevent that the tire pressure from crossing to lead to the brake efficiency to descend, the danger that the side grinds blown out is the main target of tire pressure control excessively. The traditional method for measuring the tire pressure by using the barometer has the advantages of complex operation process, long operation time, air leakage risk in the operation process, capability of being carried out only in a ground state and incapability of acquiring tire pressure information in real time.

Disclosure of Invention

In view of the above, the present invention provides an airborne real-time tire pressure monitoring device, which jointly completes real-time acquisition of sensor information such as tire pressure and the like and acquisition of sensor information in a ground state through a wireless tire pressure sensor mounted on a tire and a gateway node or a handheld data monitoring device mounted in a landing gear bay. The difficulty of obtaining the tire pressure, the tire temperature and the acceleration information of the airplane tire can be greatly reduced, the time consumed for monitoring the tire pressure is reduced, and the air leakage risk in the tire pressure monitoring process is reduced. Through obtaining tire pressure information in real time, can in time give the tire and maintain the suggestion, a large amount of tire pressure data of control record can promote tire life through the analysis.

In order to achieve the technical purpose, the invention adopts the following specific technical scheme:

an airborne tire pressure real-time monitoring device comprising:

the tire pressure sensors are arranged on the tires of the warplane, are used for monitoring the tire pressure, the temperature and the acceleration of the tires and are provided with wireless transmission equipment; the wireless transmission equipment is used for wirelessly transmitting the measurement data of the tire pressure sensor;

the plurality of communication nodes are respectively arranged on the undercarriage and are respectively used as wireless gateways to receive wireless data of the wireless transmission devices which are put on the undercarriage together and complete communication management of a wireless subnet;

and the remote interface units respectively transmit the data of each communication node to a backbone network.

Further, the data wireless transmission mode of the tire pressure sensor comprises:

making a link response according to the query message frame of the communication node and then entering a data sending state;

and if the inquiry signal frame is not received within the threshold time, entering an active request link state.

Further, the communication node communicates with the tire pressure sensor through a command-responsive communication protocol.

Furthermore, the real-time monitoring equipment also comprises ground monitoring equipment; the ground monitoring equipment is used for receiving the sending data of the wireless transmission equipment.

Further, the ground monitoring device is further configured to send the query message frame.

Further, the communication node is also used for receiving the communication requirement of the remote interface unit and sending the communication requirement to the tire pressure sensor; the tire pressure sensor is configured to perform data acquisition and data wireless transmission according to the communication requirement.

Further, the communication node is connected with the remote interface unit in a bridging mode.

Further, the tire pressure sensor is arranged at an air tap of the tire.

By adopting the technical scheme, the invention can bring the following beneficial effects:

the invention can solve the problems of complex operation process, overlong operation time, air leakage risk in the operation process and the like of the conventional airplane tire pressure detection. Meanwhile, the ability of acquiring tire pressure information in real time by pilots or ground service maintainers in air and ground states is provided, a large amount of data recorded by the method can be monitored, trend analysis and monitoring prediction can be performed on tire use, risks of the airplane caused by tire pressure problems can be effectively reduced, the operation efficiency of the airplane is improved, and the operation cost of the airplane is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic diagram of an installation location of a wireless sensor and a wireless gateway device according to an embodiment of the present invention;

FIG. 2 is a topological structure diagram of an airborne wireless tire pressure real-time monitoring system in an embodiment of the present invention;

wherein: 1. a tire pressure sensor; 2. a communication node; 3. a remote interface unit; 4. ground monitoring equipment.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. 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 is noted that various aspects of the embodiments are described below within the scope of the appended claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the disclosure, one skilled in the art should appreciate that one aspect described herein may be implemented independently of any other aspects and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number of the aspects set forth herein. Additionally, such an apparatus may be implemented and/or such a method may be practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.

It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the drawings only show the components related to the present invention rather than the number, shape and size of the components in practical implementation, and the type, quantity and proportion of the components in practical implementation can be changed freely, and the layout of the components can be more complicated.

In addition, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects may be practiced without these specific details.

In one embodiment of the present invention, an onboard real-time tire pressure monitoring device is provided, as shown in fig. 1 or fig. 2, including:

the tire pressure sensors 1 are arranged on the tires of the fighter plane, are used for monitoring the tire pressure, the temperature and the acceleration of the tires and are provided with wireless transmission equipment; the wireless transmission device is used for wirelessly transmitting the measurement data of the tire pressure sensor 1;

the plurality of communication nodes 2 are respectively arranged on each undercarriage and are respectively used as wireless gateways to receive wireless data of each wireless transmission device on the undercarriage together and complete communication management of a wireless subnet;

and a plurality of remote interface units 3 for transmitting data of the communication nodes 2 to a backbone network, respectively.

In the present embodiment, the data wireless transmission manner of the tire pressure sensor 1 includes:

making a link response according to the query message frame of the communication node 2 and then entering a data sending state;

and if the inquiry frame is not received within the threshold time, entering an active request link state.

In the present embodiment, the communication node 2 communicates with the tire air pressure sensor 1 through a command-responsive communication protocol.

In this embodiment, the real-time monitoring device further includes a ground monitoring device 4; the ground monitoring device 4 is used for receiving the sending data of the wireless transmission device.

In this embodiment, the ground monitoring device 4 is also configured to send an inquiry frame.

In this embodiment, the communication node 2 is further configured to receive a communication requirement of the remote interface unit 3 and transmit the communication requirement to the tire pressure sensor 1; the tire pressure sensor 1 is configured to collect and wirelessly transmit data according to communication requirements.

In the present embodiment, the communication node 2 is connected to the remote interface unit 3 by means of a bridge.

In the present embodiment, the tire pressure sensor 1 is provided at the air valve of the tire.

In the embodiment, a tire pressure sensor 1 is arranged at an air nozzle of an airplane tire, the sensor has the functions of monitoring the tire pressure, temperature and acceleration of the tire and wirelessly sends out monitoring data, and the tire pressure sensor 1 is powered by a battery;

in the embodiment, wireless gateway nodes are arranged in a front landing gear cabin, a rear left landing gear cabin and a rear right landing gear cabin of an airplane, the gateway nodes are upwards connected with a remote interface unit 3(RIU) through wires and downwards communicated with a tire pressure sensor 1 through a wireless network to form three mutually independent wireless subnets;

in this embodiment, the RIU communicates with an intelligent display (SDU) through a main aircraft network, and displays tire pressure related information on the aircraft display in real time;

in the embodiment, the ground handheld monitoring equipment has a wireless communication function and a data storage function, and can be in wireless communication with the tire pressure sensor 1;

in this embodiment, the communication frequency band of the wireless tire pressure sensor 1 and the wireless gateway node is 315MHz or 4300MHz, and the frequency bandwidth is 2 MHz;

in this embodiment, the gateway node serves as a master control node of the wireless subnetwork and communicates with the tire pressure sensor 1 through a command response type communication protocol; the gateway node sends acquisition commands to the tire pressure sensors 1 in the sub-network one by one according to the air/ground state of the airplane and system requirements;

in the embodiment, after receiving a gateway node acquisition command, the tire pressure sensor 1 starts information acquisition such as tire pressure, tire temperature, acceleration, battery allowance and the like, and sends the information and the tire ID to a gateway node, the gateway node collects data of all the tire pressure sensors 1 in a subnet and then transmits the data to an RIU (radio interface Unit), and the RIU uploads the data to an intelligent display through a main network of an airplane;

in the embodiment, in a ground state, ground service maintainers pass through the handheld collecting equipment, and the handheld collecting equipment has a gateway node function, can manually send collecting commands to the sensors, and collects and records data of the tire pressure sensors 1 one by one;

in this embodiment, according to the collected data of the tire pressure sensor 1, the RIU node or the ground handheld device may give a tire maintenance suggestion, such as replacing a tire, supplementing a tire pressure, etc., by analyzing the data content;

in this embodiment, a tire usage trend analysis may be performed according to a large amount of collected sensor data, and a health prediction may be performed on a tire.

As shown in fig. 2, in this embodiment, first, a tire pressure sensor 1 needs to be installed on an aircraft tire, and a wireless gateway is installed in a landing gear bay, and the wireless gateway is interconnected with an RIU, and accesses an aircraft main network through the RIU, thereby implementing a data path with a cockpit display. An aircraft is generally provided with 3 landing gear cabins, each landing gear cabin forms an independent subnet, and the number of wireless sensors in each subnet is different from 1 to 8 according to the number of tires of the aircraft.

As shown in fig. 1, 2 communication nodes 2 are arranged in 1 landing gear bay, and the data transmission method of the tire pressure sensor 1 is as follows:

real-time display function of cockpit display

The method comprises the following steps that (1) the airplane full-airplane equipment is powered on, and an RIU sends acquisition commands to a communication node 2 one by one through a gateway periodically (which can be set and is generally 500ms) in a ground or air state according to the design requirements of an airplane system;

after receiving the acquisition command, the communication node 21 starts to acquire information such as tire pressure, tire temperature, acceleration, battery remaining capacity and the like, and sends the information and the tire ID to the gateway node;

after receiving the data of the communication node 21, the gateway node sends an acquisition command to the communication node 22;

after receiving the acquisition command, the communication node 22 starts to acquire information such as tire pressure, tire temperature, acceleration, battery remaining capacity and the like, and sends the information and the tire ID to the gateway node;

after collecting 2 sensor data, the gateway node forms a packet of data and transmits the packet of data to RIU equipment through an HB6096 bus;

after receiving the data, the RIU equipment analyzes the sensor data in real time, judges whether the tire pressure is normal or not and judges whether the problems of too low and too high tire pressure exist or not, and transmits the analysis result, the maintenance suggestion and the sensor data information to the intelligent display through the main airplane network;

and after the display receives the data, the display displays the tire pressure related information and the tire maintenance suggestion in real time in the maintenance picture page of the display.

(II) real-time maintenance function of ground service personnel

When the airplane is in a ground state, no matter the whole airplane equipment is in a power-on/power-off state, ground personnel actively approach to the airplane tire (within 3 meters) by holding the tire pressure monitoring equipment, and manually acquire related information such as tire pressure in real time;

the ground service maintainer sends an acquisition command to the communication node 21 through the handheld tire pressure monitoring equipment;

after receiving the acquisition command, the communication node 21 starts to acquire information such as tire pressure, tire temperature, acceleration, battery remaining capacity and the like, and sends the information and the tire ID to the handheld tire pressure monitoring equipment;

after receiving the data of the communication node 21, the handheld tire pressure monitoring equipment analyzes the data of the sensor in real time, judges whether the tire pressure is normal or not and whether the problem of too low and too high tire pressure exists or not, displays the analysis result, maintenance suggestions and the like in a display of the handheld equipment, and stores the data in the equipment;

the ground service maintainer sends an acquisition command to the communication node 22 through the handheld tire pressure monitoring equipment;

after receiving the acquisition command, the communication node 22 starts to acquire information such as tire pressure, tire temperature, acceleration, battery remaining capacity and the like, and sends the information and the tire ID to the handheld tire pressure monitoring equipment;

after receiving the data of the communication node 22, the handheld tire pressure monitoring equipment analyzes the data of the sensor in real time, judges whether the tire pressure is normal or not and whether the problem of too low and too high tire pressure exists or not, displays the analysis result, maintenance suggestions and the like in a display of the handheld equipment, and stores the data in the equipment;

the data stored in the handheld device can be exported, trended by specialized software, and health predicted for tire usage.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.