CN110912785A - RSU health detection method and system - Google Patents
RSU health detection method and system Download PDFInfo
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- CN110912785A CN110912785A CN201911367555.9A CN201911367555A CN110912785A CN 110912785 A CN110912785 A CN 110912785A CN 201911367555 A CN201911367555 A CN 201911367555A CN 110912785 A CN110912785 A CN 110912785A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
- H04L43/0817—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking functioning
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0659—Management of faults, events, alarms or notifications using network fault recovery by isolating or reconfiguring faulty entities
- H04L41/0661—Management of faults, events, alarms or notifications using network fault recovery by isolating or reconfiguring faulty entities by reconfiguring faulty entities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/14—Arrangements for monitoring or testing data switching networks using software, i.e. software packages
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Abstract
The invention provides a method and a system for RSU health detection, which are characterized by comprising the following steps: step M1: detecting the preparation information according to the RSU health; step M2: setting a timer and waiting for the non-RSU management process to be powered on; the timer can set a time interval process; step M3: sending a power-on notification to an RSU management process to acquire power-on notification information; step M4: according to the power-on notification information; step M5, according to the process power-on completion information, the RSU management process starts a period timer, and sends the health detection message by taking the time set by the period timer as a period; step M6: the non-RSU management process receives the health detection message and detects whether all internal threads are normal or not; if yes, sending a health detection response message; if not, sending a non-health detection response message; and acquiring RSU health detection result information. The invention can monitor the running conditions of all threads in the RSU and prevent one thread from being hung up to cause the abnormal running of the whole RSU.
Description
Technical Field
The invention relates to health check of processes and threads, in particular to a method and a system for RSU health detection.
Background
Currently, the RSU has several processes, and each process is composed of several threads. During the running process of the RSU, whether each thread and process run normally needs to be detected. The existing realization only detects whether each main process normally operates, and does not detect whether all threads in the process normally operate.
Patent document CN104574533A discloses a concurrent processing method for an on-board unit (OBU) of a free flow, where a Road Side Unit (RSU) located at a path identification point executes transaction processes of each OBU in a coverage area thereof in a time-sharing concurrent manner, where the transaction processes include: A. the RSU sends an OBU searching command to the RSU coverage area at preset intervals, and if the transaction process of the RSU and any one OBU is not released and completed before the OBU searching command is sent each time, the RSU also sends a transaction command corresponding to the current transaction state of the RSU to the OBU; B. and the RSU waits for receiving feedback information aiming at the transaction command and/or feedback information aiming at the search OBU command, and if the correct feedback information is received, the RSU updates the transaction state of the corresponding OBU according to the feedback information. The patent does not detect well whether each thread and process is running properly.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a method and a system for RSU health detection.
The RSU health detection method provided by the invention comprises the following steps: step M1: acquiring an RSU management process according to the RSU health detection preparation information; step M2: setting a timer, waiting for the non-RSU management process to be powered on, and acquiring the power-on information of the non-RSU management process or the power-on information which is not received by the non-RSU management process; the timer can set a time interval process; step M3: sending a power-on notification to the RSU management process according to the power-on information of the non-RSU management process, and acquiring the power-on notification information; step M4: acquiring health examination starting information according to the power-on notification information; step M5, according to the process power-on completion information, the RSU management process starts a period timer, and sends the health detection message by taking the time set by the period timer as a period; step M6: the non-RSU management process receives the health detection message and detects whether all internal threads are normal or not; if yes, sending a health detection response message; if not, sending a non-health detection response message; and acquiring RSU health detection result information.
Preferably, the method further comprises the following steps: step M7: acquiring RSU health result output information according to the RSU health detection result information; the RSU health result output information comprises any one or more of the following output information: -RSU health result sound output information; -RSU health result display output information.
Preferably, the step M3 further includes: the step M3.1: and restarting the system to try to recover according to the condition that the non-RSU management process is electrified and does not receive information and the default RSU state is abnormal.
Preferably, the step M2 includes: step M2.1: the timer was set to a timing time of 2 minutes.
Preferably, the step M5 includes: step M5.1: the period timer is set to 1 second.
According to the present invention, there is provided an RSU health detection system, comprising: module M1: acquiring an RSU management process according to the RSU health detection preparation information; module M2: setting a timer, waiting for the non-RSU management process to be powered on, and acquiring the power-on information of the non-RSU management process or the power-on information which is not received by the non-RSU management process; the timer can set a time interval process; module M3: sending a power-on notification to the RSU management process according to the power-on information of the non-RSU management process, and acquiring the power-on notification information; module M4: acquiring health examination starting information according to the power-on notification information; a module M5, in which, according to the process power-on completion information, the RSU management process starts a period timer and sends the health detection message by taking the time set by the period timer as a period; module M6: the non-RSU management process receives the health detection message and detects whether all internal threads are normal or not; if yes, sending a health detection response message; if not, sending a non-health detection response message; and acquiring RSU health detection result information.
Preferably, the method further comprises the following steps: module M7: acquiring RSU health result output information according to the RSU health detection result information; the RSU health result output information comprises any one or more of the following output information: -RSU health result sound output information; -RSU health result display output information.
Preferably, the module M3 further includes: the module M3.1: and restarting the system to try to recover according to the condition that the non-RSU management process is electrified and does not receive information and the default RSU state is abnormal.
Preferably, said module M2 comprises: module M2.1: the timer was set to a timing time of 2 minutes.
Preferably, said module M5 comprises: module M5.1: the period timer is set to 1 second.
Compared with the prior art, the invention has the following beneficial effects:
the invention can monitor the running conditions of all threads in the RSU and prevent one thread from being hung up to cause the abnormal running of the whole RSU.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a flow chart illustrating inter-process health detection according to an embodiment of the present invention.
Fig. 2 is a schematic flow chart of health detection of all threads in a process, which relates to a general process in embodiment 1 of the present invention.
FIG. 3 is a flowchart illustrating health detection of all threads in a process related to a high-load process in embodiment 1 of the present invention.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
As shown in fig. 1 to 3, a RSU health detection method provided in accordance with the present invention includes: step M1: acquiring an RSU management process according to the RSU health detection preparation information; step M2: setting a timer, waiting for the non-RSU management process to be powered on, and acquiring the power-on information of the non-RSU management process or the power-on information which is not received by the non-RSU management process; the timer can set a time interval process; step M3: sending a power-on notification to the RSU management process according to the power-on information of the non-RSU management process, and acquiring the power-on notification information; step M4: acquiring health examination starting information according to the power-on notification information; step M5, according to the process power-on completion information, the RSU management process starts a period timer, and sends the health detection message by taking the time set by the period timer as a period; step M6: the non-RSU management process receives the health detection message and detects whether all internal threads are normal or not; if yes, sending a health detection response message; if not, sending a non-health detection response message; and acquiring RSU health detection result information.
Preferably, the method further comprises the following steps: step M7: acquiring RSU health result output information according to the RSU health detection result information; the RSU health result output information comprises any one or more of the following output information: -RSU health result sound output information; -RSU health result display output information.
Preferably, the step M3 further includes: the step M3.1: and restarting the system to try to recover according to the condition that the non-RSU management process is electrified and does not receive information and the default RSU state is abnormal.
Preferably, the step M2 includes: step M2.1: the timer was set to a timing time of 2 minutes.
Preferably, the step M5 includes: step M5.1: the period timer is set to 1 second.
Specifically, in one embodiment, a RSU health detection method includes:
step S1: a management process powermanager (pm for short) is started by an RSU (Road Side Unit), and a 2-minute timer is set after the pm process is powered on and used for waiting for receiving power-on notifications of other processes;
step S2: after other RSU processes needing health check are powered on, a power-on notice is sent to the pm process, and other processes comprise update and v2 x;
step S3: the pm process receives the power-on notice of other RSU processes and starts health check; if the power-on information of other processes is not received for two minutes, the state of the default RSU is abnormal, and the system is restarted to try to recover;
step S4: after all the processes are electrified, pm starts a periodic timer with the duration of 1 s; then sending health detection information with 1s as a period;
step S5: the non-pm process receives the health detection message, detects whether all internal threads are normal, and sends a health detection response message if all internal threads are normal; otherwise, no response message is sent;
the update process has three threads, including a main thread, pthread1, pthread2, pthread1 receives pm health check message and sends it to pthread2, pthread2 receives it and forwards it to the main thread, and the main thread receives the health check message and sends health check response to pm.
The v2x process is used for processing messages from radio (wireless), cloud (cloud server) side and ecu (electronic control unit) side, the v2x mainly comprises a main thread, pthread1, pthread2, pthread3 and pthread4, wherein pthread1 is used for communicating with other processes of the RSU, pthread2 is used for communicating with ecu, pthread3 is used for communicating with kud, and pthread4 is used for processing messages received wirelessly.
When pthread1 is powered on, recording the statistics of transceiving on the ecu, cloud and radio at the moment;
the pthread1 checks whether the message statistics of the ecu/close/radio are updated or not when receiving the health detection message, if the statistics is updated or sending the statistics is updated, the corresponding thread is considered to run normally, otherwise, the health detection message is sent to the corresponding thread, and the thread is considered to be normal after receiving the health detection response;
pthread1 considers that pthread 2-4 works normally, and sends a health detection message to the main thread, and after receiving the health detection message, the main thread sends a health detection response to the pm;
pm lines up the health check responses of other processes and considers the system to be normal. If no response message is received for the update or v2x process for 10 consecutive cycles, the RSU state is considered abnormal, and the system will be restarted to attempt recovery.
Specifically, in one embodiment, a method of RSU health detection follows the steps of:
1. judging whether one process manages other processes to work normally or not;
2. each process receives the health check information of the management process and detects the health state of all threads in the process;
1) and the thread which receives the health check sends the message to the other thread, the other thread receives the message and then sends the message to other threads in sequence, and the health check response message is sent to the management process until the last thread.
2) For the threads which are possibly always busy, other threads judge whether the threads run normally or not by detecting corresponding statistics.
3. If the management process receives the health detection response of all the monitoring processes, the system is considered to be normal; if no response message is received for the update or v2x process for 10 consecutive cycles, the RSU state is considered abnormal, and the system will be restarted to attempt recovery.
Those skilled in the art can understand the RSU health detection method provided by the present invention as an embodiment of the RSU health detection system provided by the present invention. That is, the RSU health detection system may be implemented by executing a flow of steps of the RSU health detection method.
According to the present invention, there is provided an RSU health detection system, comprising: module M1: acquiring an RSU management process according to the RSU health detection preparation information; module M2: setting a timer, waiting for the non-RSU management process to be powered on, and acquiring the power-on information of the non-RSU management process or the power-on information which is not received by the non-RSU management process; the timer can set a time interval process; module M3: sending a power-on notification to the RSU management process according to the power-on information of the non-RSU management process, and acquiring the power-on notification information; module M4: acquiring health examination starting information according to the power-on notification information; a module M5, in which, according to the process power-on completion information, the RSU management process starts a period timer and sends the health detection message by taking the time set by the period timer as a period; module M6: the non-RSU management process receives the health detection message and detects whether all internal threads are normal or not; if yes, sending a health detection response message; if not, sending a non-health detection response message; and acquiring RSU health detection result information.
Preferably, the method further comprises the following steps: module M7: acquiring RSU health result output information according to the RSU health detection result information; the RSU health result output information comprises any one or more of the following output information: -RSU health result sound output information; -RSU health result display output information.
Preferably, the module M3 further includes: the module M3.1: and restarting the system to try to recover according to the condition that the non-RSU management process is electrified and does not receive information and the default RSU state is abnormal.
Preferably, said module M2 comprises: module M2.1: the timer was set to a timing time of 2 minutes.
Preferably, said module M5 comprises: module M5.1: the period timer is set to 1 second.
The invention can monitor the running conditions of all threads in the RSU and prevent one thread from being hung up to cause the abnormal running of the whole RSU.
Those skilled in the art will appreciate that, in addition to implementing the system and its various devices, units provided by the present invention as pure computer readable program code, the system and its various devices, units provided by the present invention can be fully enabled to implement the same functions by logically programming the method steps in the form of logic gates, switches, application specific integrated circuits, programmable logic controllers, embedded microcontrollers and the like. Therefore, the system and various devices, units and units thereof provided by the invention can be regarded as a hardware component, and the devices, units and units included in the system for realizing various functions can also be regarded as structures in the hardware component; means, elements, units for performing various functions may also be regarded as structures within both software and hardware components for performing the method.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (10)
1. A method of RSU health detection, comprising:
step M1: acquiring an RSU management process according to the RSU health detection preparation information;
step M2: setting a timer, waiting for the non-RSU management process to be powered on, and acquiring the power-on information of the non-RSU management process or the power-on information which is not received by the non-RSU management process;
the timer can set a time interval process;
step M3: sending a power-on notification to the RSU management process according to the power-on information of the non-RSU management process, and acquiring the power-on notification information;
step M4: acquiring health examination starting information according to the power-on notification information;
step M5, according to the process power-on completion information, the RSU management process starts a period timer, and sends the health detection message by taking the time set by the period timer as a period;
step M6: the non-RSU management process receives the health detection message and detects whether all internal threads are normal or not; if yes, sending a health detection response message; if not, sending a non-health detection response message;
and acquiring RSU health detection result information.
2. The RSU health detection method of claim 1, further comprising:
step M7: acquiring RSU health result output information according to the RSU health detection result information;
the RSU health result output information comprises any one or more of the following output information:
-RSU health result sound output information;
-RSU health result display output information.
3. The RSU health detection method of claim 1, wherein the step M3 further comprises:
the step M3.1: and restarting the system to recover according to the condition that the information is not received when the non-RSU management process is electrified and the state of the default RSU is abnormal.
4. The RSU health detection method of claim 1, wherein the step M2 comprises:
step M2.1: the timer was set to a timing time of 2 minutes.
5. The RSU health detection method of claim 1, wherein the step M5 comprises:
step M5.1: the period timer is set to 1 second.
6. An RSU health detection system, comprising:
module M1: acquiring an RSU management process according to the RSU health detection preparation information;
module M2: setting a timer, waiting for the non-RSU management process to be powered on, and acquiring the power-on information of the non-RSU management process or the power-on information which is not received by the non-RSU management process;
the timer can set a time interval process;
module M3: sending a power-on notification to the RSU management process according to the power-on information of the non-RSU management process, and acquiring the power-on notification information;
module M4: acquiring health examination starting information according to the power-on notification information;
a module M5, in which, according to the process power-on completion information, the RSU management process starts a period timer and sends the health detection message by taking the time set by the period timer as a period;
module M6: the non-RSU management process receives the health detection message and detects whether all internal threads are normal or not; if yes, sending a health detection response message; if not, sending a non-health detection response message;
and acquiring RSU health detection result information.
7. The RSU health detection system of claim 6, further comprising:
module M7: acquiring RSU health result output information according to the RSU health detection result information;
the RSU health result output information comprises any one or more of the following output information:
-RSU health result sound output information;
-RSU health result display output information.
8. The RSU health detection system of claim 6, wherein the module M3 further comprises:
the module M3.1: and restarting the system to recover according to the condition that the information is not received when the non-RSU management process is electrified and the state of the default RSU is abnormal.
9. The RSU health detection system of claim 6, wherein the module M2 comprises:
module M2.1: the timer was set to a timing time of 2 minutes.
10. The RSU health detection system of claim 6, wherein the module M5 comprises:
module M5.1: the period timer is set to 1 second.
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Application publication date: 20200324 |