CN113986590A - Online troubleshooting method for civil aviation environment monitoring system - Google Patents
Online troubleshooting method for civil aviation environment monitoring system Download PDFInfo
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- CN113986590A CN113986590A CN202111193011.2A CN202111193011A CN113986590A CN 113986590 A CN113986590 A CN 113986590A CN 202111193011 A CN202111193011 A CN 202111193011A CN 113986590 A CN113986590 A CN 113986590A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 19
- 238000013024 troubleshooting Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000036541 health Effects 0.000 claims abstract description 8
- 238000004891 communication Methods 0.000 claims abstract description 4
- 230000003862 health status Effects 0.000 claims abstract description 3
- 230000009977 dual effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
- G06F11/0706—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation the processing taking place on a specific hardware platform or in a specific software environment
- G06F11/0736—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation the processing taking place on a specific hardware platform or in a specific software environment in functional embedded systems, i.e. in a data processing system designed as a combination of hardware and software dedicated to performing a certain function
- G06F11/0739—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation the processing taking place on a specific hardware platform or in a specific software environment in functional embedded systems, i.e. in a data processing system designed as a combination of hardware and software dedicated to performing a certain function in a data processing system embedded in automotive or aircraft systems
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
- G06F11/0793—Remedial or corrective actions
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/3003—Monitoring arrangements specially adapted to the computing system or computing system component being monitored
- G06F11/3013—Monitoring arrangements specially adapted to the computing system or computing system component being monitored where the computing system is an embedded system, i.e. a combination of hardware and software dedicated to perform a certain function in mobile devices, printers, automotive or aircraft systems
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/3055—Monitoring arrangements for monitoring the status of the computing system or of the computing system component, e.g. monitoring if the computing system is on, off, available, not available
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/32—Monitoring with visual or acoustical indication of the functioning of the machine
- G06F11/324—Display of status information
- G06F11/327—Alarm or error message display
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/14—Handling requests for interconnection or transfer
- G06F13/20—Handling requests for interconnection or transfer for access to input/output bus
- G06F13/28—Handling requests for interconnection or transfer for access to input/output bus using burst mode transfer, e.g. direct memory access DMA, cycle steal
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- Computing Systems (AREA)
- Mathematical Physics (AREA)
- Debugging And Monitoring (AREA)
Abstract
本发明公开了一种民用航空环境监视系统在线故障排查方法，所述民用航空交通监视系统包括第一主设备、第二主设备、若干个状态上报从设备和控制寄存从设备，采用I2C总线通信，配置如下：其中，第一主设备、状态上报从设备和控制寄存从设备是固化到I2C总线网络中，状态上报从设备仅是上报健康状态，控制寄存从设备支持读写操作，第一主设备监控各上报状态从设备上报的健康状态；当发生故障时，第二主设备通过对控制寄存从设备的读写操作对故障进行消除。本发明采用双主设备的I2C总线方案，既能保持正常工作情况下的I2C功能不受影响，又能做到随时在线接入I2C总线排查故障，并及时解决问题，开启预留寄存器，启用备用解决方案。
The invention discloses an on-line troubleshooting method for a civil aviation environment monitoring system. The civil aviation traffic monitoring system includes a first master device, a second master device, several status reporting slave devices and control register slave devices, and adopts I2C bus communication , the configuration is as follows: Among them, the first master device, the state reporting slave device and the control register slave device are solidified into the I2C bus network, the state report slave device only reports the health state, the control register slave device supports read and write operations, the first master device The device monitors the health status reported by each reporting state slave device; when a fault occurs, the second master device eliminates the fault by reading and writing operations on the control register slave device. The invention adopts the I2C bus scheme of dual master devices, which can not only keep the I2C function under normal working conditions unaffected, but also can access the I2C bus online at any time to check the fault, solve the problem in time, open the reserved register, and enable the backup solution.
Description
Technical Field
The invention relates to an online troubleshooting method for a civil aviation environment monitoring system, which adopts a double master I2C bus scheme, can not only keep I2C functions under normal working conditions unaffected, but also can access an I2C bus on line at any time to troubleshoot faults, solve problems in time, start a reserved register and start a standby solution.
Background
The civil aviation environment monitoring system has the functions of traffic collision avoidance, air traffic control response and the like, and once the civil aviation environment monitoring system is offline, the airplane disappears in the display of the air traffic control secondary radar, the nearby airplane can not be found through the response machine, and even the risk of airplane collision can occur. Thus, online troubleshooting of civil aviation environmental monitoring systems is particularly important for flight safety.
The health management function of the normal work of the civil aviation environment monitoring system is realized through a conventional I2C bus, and the conventional health monitoring function can be checked in real time without depending on external equipment, but can not process faults.
Disclosure of Invention
The invention aims to provide an online troubleshooting method for a civil aviation environment monitoring system, which adopts a double master I2C bus scheme to realize flexible access to second main equipment for online troubleshooting, and has the advantages of simple hardware upgrading, flexibility and high cost.
The invention aims to be realized by the following technical scheme.
An online troubleshooting method for a civil aviation environment monitoring system comprises a first main device, a second main device, a plurality of state reporting slave devices and a control registering slave device, wherein the civil aviation traffic monitoring system adopts I2C bus communication and is configured as follows:
the first master device, the state reporting slave device and the control registering slave device are all fixed in an I2C bus network and cannot exit online, the state reporting slave device only reports the health state, the control registering slave device supports read-write operation, and the first master device monitors the health state reported by each reporting state slave device;
when a fault occurs, the second master device eliminates the fault through the read-write operation of the control register slave device.
Further, the second master device is further configured to monitor the health status reported by each reported status slave device, the first master device and the second master device use different operating frequencies, the operating level of the first master device is 5V to 3.3V, the operating level of the second master device is 3.3V to 0V, and the reported status slave device and the control register slave device determine the master device that responds at this time according to the value of the level.
Preferably, when a fault occurs or the external access is required to switch the working mode, the second master device accesses the I2C bus through the online debugging port, and after the task is completed, the second master device exits the I2C bus by pulling out the online debugging port.
Drawings
Fig. 1 is a schematic diagram of an I2C bus topology of a civil aviation traffic monitoring system according to an embodiment.
Fig. 2 is an assignment diagram of SCL levels and frequencies.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
In the online troubleshooting method for the civil aviation traffic monitoring system shown in this embodiment, referring to fig. 1, the civil aviation traffic monitoring system includes a first master device, a second master device, a plurality of slave devices reporting states, and a control register slave device, and is configured as follows by using I2C bus communication.
The first master device, the report state slave device and the control register slave device are solidified in the I2C bus network and cannot be logged out online, and the second master device can realize random online access and logging out. The access of the second main device does not affect the work of the first main device, and the exit of the bus does not affect the normal operation of the original bus device.
The control register slave device supports the read-write operation of the second master device, and the second master device can check and solve the fault through the read-write operation of the control register slave device.
The reported state slave devices only report the health state, each reported state slave device reports the fault word periodically, if all the bits in the fault word are 0, no fault is indicated, each position represents a fault, and the reported state slave devices are read only and cannot write to the first master device and the second master device. Each slave device for reporting the state runs independently and has the same position in the bus.
When a fault occurs or an external access switching working mode is needed, the second main device is accessed to the I2C bus through the online debugging port, some faults are eliminated through the read-write operation of the control register slave device, and after the fault elimination task is completed, the second main device exits from the I2C bus through the online debugging port. For example, the data of the fault word 7 reported from the device 3 in fig. 1 is 00001000, and the fifth position is 1, which indicates that the 5 th way ANRIC429 receives a fault. The way 5 ANRIC429 receive block may be reset by writing 00001000 followed by 00000000 to the corresponding location in the control register slave device and observing whether the fault word is cleared.
The second master device may also monitor the status of each reported status slave device. The I2C serial bus has two signal lines, one bi-directional data line SDA and the other clock line SCL. All serial data SDA connected to I2C bus equipment are connected to SDA of the bus, and clock line SCL of each equipment is connected to SCL of the bus. Where SCL can only be controlled by the master device. After the devices in the I2C bus complete physical connection according to a bus topology diagram, it is already clear about the SDA data bus in the bus, but there is a contention multiplexing problem in the absence of the SCL clock, there is only one master in the conventional I2C bus, only this master can drive the SCL, the slave is not qualified to drive the SCL, there are two masters in the I2C bus designed in the embodiment, the SCL must be multiplexed, and in order to avoid the risk, the embodiment designs two ways of frequency division multiplexing and pulse modulation to ensure that multiplexing is free from contention risk. The operating frequency of the first master is 400kHz and the operating frequency of the second master is 100kHz, and the clock frequencies of the two masters are different and do not interfere with each other. The working level of the first master device is 5V to 3.3V, the working level of the second master device is 3.3V to 0V, and the reporting state slave device and the control register slave device can judge the number of the master device responding at the moment according to the value of the level. The detailed design is shown in fig. 2.
The embodiment adopts the I2C bus scheme of double master, does not change the original bus structure from the hardware, has obvious advantages in the aspect of old system upgrade, occupies few debugging interfaces, and the I2C bus only needs to occupy 2 pin pins, so that the interface is very convenient to reserve the original interface or redistribute a new interface. The I2C bus of the double master adopts two voltages of 5V and 3.3V from the aspect of power consumption, the two voltages are low-power-consumption modes, the total power consumption of original hardware cannot be influenced by a new debugging interface, and extra power consumption influence does not need to be considered in upgrading on-line troubleshooting. Very strong fault online troubleshooting capability can be improved by very low cost investment, flight safety is guaranteed, and the market prospect is promising.
It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the scope of the appended claims.
Claims (3)
1. An online troubleshooting method for a civil aviation environment monitoring system comprises a first main device, a second main device, a plurality of state reporting slave devices and a control registering slave device, wherein the state reporting slave devices and the control registering slave devices adopt I2C bus communication, and the online troubleshooting method is characterized by being configured as follows:
the first master device, the state reporting slave device and the control registering slave device are solidified into an I2C bus network, the state reporting slave device only reports the health state, the control registering slave device supports read-write operation, and the first master device monitors the health state reported by each reporting state slave device;
when a fault occurs, the second master device eliminates the fault through the read-write operation of the control register slave device.
2. The on-line troubleshooting method of a civil aviation environment monitoring system as recited in claim 1, wherein the second master device is further configured to monitor health status reported by each of the reported status slave devices, the first master device and the second master device employ different operating frequencies, and an operating level of the first master device is 5V to 3.3V, an operating level of the second master device is 3.3V to 0V, and the reported status slave device and the control registering slave device determine the master device that responds at that time according to a value of the levels.
3. The on-line troubleshooting method for civil aviation environment monitoring system as recited in claim 1, wherein when a failure occurs or an external access is required to switch the operation mode, the second master device accesses the I2C bus through the on-line debugging port, and after the task is completed, the second master device exits the I2C bus by pulling out the on-line debugging port.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060253737A1 (en) * | 2005-04-26 | 2006-11-09 | Matsushita Electric Industrial Co., Ltd. | Debugging mechanism and debugging register |
| JP2015011371A (en) * | 2013-06-26 | 2015-01-19 | Ｎｅｃプラットフォームズ株式会社 | Alternative control apparatus, alternative control method, and alternative control program |
| CN105204600A (en) * | 2015-09-16 | 2015-12-30 | 上海斐讯数据通信技术有限公司 | I2C bus multiplexing method and system for realizing resetting of integrated chips and electronic equipment |
| CN109976489A (en) * | 2019-03-28 | 2019-07-05 | 烽火通信科技股份有限公司 | Automatically reset realization method and system under a kind of iic bus abnormal conditions |
| CN112131167A (en) * | 2020-08-21 | 2020-12-25 | 山东云海国创云计算装备产业创新中心有限公司 | LPC protocol-based I2C forwarding module, system and use method thereof |
| CN113032197A (en) * | 2021-03-29 | 2021-06-25 | 杭州迪普信息技术有限公司 | Equipment fault detection method and equipment |
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2021
- 2021-10-13 CN CN202111193011.2A patent/CN113986590A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060253737A1 (en) * | 2005-04-26 | 2006-11-09 | Matsushita Electric Industrial Co., Ltd. | Debugging mechanism and debugging register |
| JP2015011371A (en) * | 2013-06-26 | 2015-01-19 | Ｎｅｃプラットフォームズ株式会社 | Alternative control apparatus, alternative control method, and alternative control program |
| CN105204600A (en) * | 2015-09-16 | 2015-12-30 | 上海斐讯数据通信技术有限公司 | I2C bus multiplexing method and system for realizing resetting of integrated chips and electronic equipment |
| CN109976489A (en) * | 2019-03-28 | 2019-07-05 | 烽火通信科技股份有限公司 | Automatically reset realization method and system under a kind of iic bus abnormal conditions |
| CN112131167A (en) * | 2020-08-21 | 2020-12-25 | 山东云海国创云计算装备产业创新中心有限公司 | LPC protocol-based I2C forwarding module, system and use method thereof |
| CN113032197A (en) * | 2021-03-29 | 2021-06-25 | 杭州迪普信息技术有限公司 | Equipment fault detection method and equipment |
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