WO2018165969A1

WO2018165969A1 - System and method for detecting environmental monitoring remote communication fault based on single-chip microcomputer

Info

Publication number: WO2018165969A1
Application number: PCT/CN2017/077020
Authority: WO
Inventors: 韩性峰
Original assignee: 深圳瀚飞科技开发有限公司
Priority date: 2017-03-17
Filing date: 2017-03-17
Publication date: 2018-09-20

Abstract

A system and method for detecting an environmental monitoring remote communication fault based on a single-chip microcomputer. The system comprises: a central single-chip microcomputer, a central error-reporting apparatus, a platform single-chip microcomputer and a platform error-reporting apparatus, wherein the central error-reporting apparatus and the central single-chip microcomputer are connected by means of a data line, the platform single-chip microcomputer establishes a communication connection with the central single-chip microcomputer, and the platform error-reporting apparatus establishes a communication connection with the platform single-chip microcomputer. With the system and method for detecting an environmental monitoring remote communication fault based on a single-chip microcomputer, a fault can be conveniently and quickly queried, and errors are reported by means of different error-reporting apparatuses, so that the location of the fault can be discovered in a timely manner, and maintenance can be carried out quickly and in a timely manner, thereby ensuring the smooth communication of the entire environmental monitoring remote control system.

Description

Environmental monitoring remote communication fault detection system and detection method based on single chip microcomputer

Technical field

The invention belongs to the technical field of environmental monitoring, and is specifically a fault detection system and a detection method for environmental monitoring remote communication based on single chip microcomputer.

technical background

With the continuous improvement of the living standards and environmental awareness of our residents, the quality of the environment is even more important for people. Therefore, the establishment of a practical and convenient environmental data monitoring and management system to achieve the comprehensive needs of environmental data monitoring is a problem that must be paid attention to now. The main contents of environmental data monitoring include temperature, humidity, ultraviolet light, noise, SO ₂ , NO ₂ and so on. At present, the situation of insufficient construction of environmental data monitoring network in China is the background. The wireless sensor network technology is used to establish an environmental monitoring system for remote monitoring and management. However, in the establishment of a remote monitoring system, the troubleshooting of communication failures is a problem that needs to be resolved in time.

Summary of the invention

According to the above technology, the present invention provides an environmental monitoring remote communication fault detection system and a detection method based on a single chip microcomputer.

The specific technical solution is:

Firstly, a fault detection system for environmental monitoring remote communication based on single chip microcomputer is provided, which comprises a central single chip microcomputer, a central error reporting device, a platform single chip microcomputer, and a platform error reporting device; the central error reporting device is connected with the central single chip microcomputer through a data line, the The platform MCU is in communication connection with the central MCU, and the platform error reporting device is in communication connection with the platform MCU.

Specifically, the central single-chip microcomputer is configured to send the attempt information to the platform single-chip microcomputer according to the defined file transfer protocol timing, and receive the response information sent by the platform single-chip microcomputer, and record that the response information is not received because the response information is not received. The number of failures, and based on The number of times the attempt fails, and sends an error instruction to the central error reporting device;

The central error reporting device is configured to send an error signal according to an error instruction sent by the central single chip microcomputer;

The platform microcontroller is configured to receive the attempt information sent by the central single chip, and after receiving the attempt information, send a response message to the central single chip, and also record that the attempt is not received. The number of attempts to fail the information, and according to the number of failed attempts, sends an error instruction to the platform error reporting device;

The platform error reporting device is configured to send an error signal according to an error instruction sent by the platform single chip microcomputer.

Further, the central single-chip microcomputer is a single-chip computer of a remote monitoring center host, and the platform single-chip computer is a single-chip computer for monitoring the environmental monitoring platform of the station.

Further, the central single-chip microcomputer and the platform single-chip microcomputer respectively comprise a communication module, and the central single-chip microcomputer and the platform single-chip microcomputer communicate with each other through a communication module.

The invention also provides a method for detecting remote communication faults based on single-chip microcomputer, comprising the following processes:

Defining a file transfer protocol, and the central MCU periodically sends the test information according to the file transfer protocol;

The attempted information is received by the platform microcontroller.

It also includes the following process:

If the platform MCU receives the attempt information, and sends response information according to the attempt information;

If the platform microcontroller does not receive the attempted information, recording the number of attempts to fail because the attempted information is not received;

According to the number of times the platform MCU continuously receives no attempt information, by the The platform MCU sends an error instruction, and starts the platform error reporting device to report an error;

The central single chip receives the response information sent by the platform single chip microcomputer;

If the central microcontroller does not receive the response message, recording the number of attempts to fail due to not receiving the response message;

According to the number of times that the central single-chip microcomputer does not receive the response information continuously, the central single-chip microcomputer sends an error instruction, and starts the center error reporting device to report an error.

Wherein, when the platform MCU continuously receives no attempt information for more than the set MAX_TIES, the platform MCU sends an error instruction;

If the number of times that the central single-chip microcomputer does not receive the response information continuously is greater than the set MAX_TIES, the central single-chip microcomputer sends an error instruction;

The MAX_TIES is an integer greater than one.

Further, when the platform MCU receives the attempt information, the recorded number of failed attempts due to failure to receive the attempt information is zero;

When the central MCU receives the response information, the recorded number of failed attempts due to failure to receive the response information is zeroed.

The invention provides a single-chip based environmental monitoring remote communication fault detection system and a detection method, which can conveniently and quickly perform fault inquiry, and report errors through different error reporting devices, and can timely find the fault location, and can quickly and timely repair and repair. To ensure smooth communication of the entire environment monitoring remote control system.

detailed description

The technical solutions of the present invention will be clearly and completely described in the following with reference to the embodiments. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Example 1

The environment monitoring remote communication fault system based on single chip microcomputer comprises a central single chip microcomputer, a central error reporting device, a platform single chip microcomputer, a platform error reporting device; the central error reporting device is connected with the central single chip computer through a data line, and the platform single chip microcomputer and the The central single-chip microcomputer performs communication connection, and the platform error reporting device communicates with the platform single-chip microcomputer.

The central single-chip microcomputer is configured to send the attempt information to the platform single-chip microcomputer according to the defined file transfer protocol timing, and is further configured to receive the response information sent by the platform single-chip microcomputer, and record the number of attempts to fail because the response information is not received, and according to the attempt The number of failures, sending an error instruction to the central error reporting device;

The central error reporting device is configured to issue an error signal according to an error instruction sent by the central single chip microcomputer;

The platform single-chip microcomputer is configured to receive the attempt information sent by the central single-chip microcomputer, and after receiving the trial information, send a response message to the central single-chip microcomputer, and record the number of attempts to fail because the trial information is not received, and according to the number of failed attempts, The platform error reporting device sends an error instruction;

The platform error reporting device is configured to issue an error signal according to an error instruction sent by the platform single chip microcomputer.

The central single-chip microcomputer is a single-chip computer of a remote monitoring center host, and the platform single-chip computer is a single-chip computer for monitoring an environmental monitoring platform of a station. When the host of the remote monitoring center fails, the central MCU will also fail, and it cannot send the attempt information to the platform MCU. If the environmental monitoring platform fails, the platform MCU will also fail, and the response message cannot be sent to the central MCU. The central MCU and the platform MCU communicate wirelessly through the communication module, which can be EnOcean, Zigbee, Z-Wave and Bluetooth.

Example 2

The invention also resides in an environmental monitoring remote communication fault detection method based on a single chip microcomputer, comprising:

(1) defining a file transfer protocol, and the central MCU periodically sends the test information according to the file transfer protocol;

Receiving the attempted information by the platform microcontroller;

The file transfer protocol is selected as the XModem file transfer protocol; the XModem protocol can be used directly in other device communications that follow this protocol. In LabWindows, the actual XModem application is hidden from the user. As long as the PC and other devices use the XModem protocol, the LabMode XModem function is used in file transfer. The functions are XModemConfig, XModemSend and XModemReceive.

The central MCU sends the attempt information at a certain time interval, and the platform MCU does not receive the attempt information within the specified time interval and is regarded as an attempt failure.

The central single-chip computer and the platform single-chip microcomputer communicate with each other through wireless communication methods to transmit the test information to each other.

(2) If the platform MCU receives the attempt information, the response message is sent according to the attempt information;

If the platform microcontroller does not receive the attempt information, the number of times the attempt fails due to not receiving the attempt information;

The central single-chip microcomputer is a single-chip computer of a remote monitoring center host, and the platform single-chip computer is a single-chip computer for monitoring an environmental monitoring platform of a station. When the remote monitoring center host is normal, the central single-chip microcomputer is normal, and the test information can be normally sent according to the file transfer protocol. Therefore, the platform single-chip microcomputer receives the trial information, indicating that the central single-chip microcomputer is in a normal working state, that is, the remote monitoring center host is normal. When the host of the remote monitoring center fails, the central MCU will also fail, and the attempt information cannot be sent normally. The platform MCU will not receive the attempt information, indicating that the remote monitoring center host has failed. But when it happens The barrier is short-lived, and the microcontroller can resume normal operation in a short period of time. Therefore, when the number of attempts to fail due to the failure to receive the trial information is recorded, it is judged whether the failure of the single-chip microcomputer is temporary.

If the platform MCU receives the attempt information, it will send a response message according to the attempt message and pass it to the central MCU.

(3) According to the number of times the platform MCU has not received the trial information continuously, the platform MCU sends an error instruction, and starts the platform error device to report the error;

When the platform MCU receives the attempted information, the number of failed attempts to record the failure due to the failure to receive the attempt information is zero. Only when the number of times the platform MCU has not received the trial information continuously reaches a certain value, it is possible to explain the remote monitoring center. If the host fails, you need to start the platform error reporting device to report the error.

(4) The central single chip receives the response information sent by the platform single chip microcomputer;

Since the platform MCU is a single-chip computer of the environmental monitoring platform, when the environmental monitoring platform is normal, the platform MCU is normal, can receive the test information normally, and send the response message. Therefore, if the central MCU receives the response message, the platform MCU is in normal. The working state, that is, the environmental monitoring platform is normal. When the environmental monitoring platform fails, the platform MCU also fails at the same time, the response message cannot be sent normally, and the central MCU will not receive the response message, indicating that the environmental monitoring platform is faulty. The same is true for temporary faults, which are excluded by recording the number of attempts to fail because no response information is received.

(5) According to the number of times the central single-chip microcomputer does not receive the response information continuously, the central single-chip microcomputer sends an error instruction, and the center error reporting device is started to report the error.

If the central microcontroller does not receive the response message, the record is not The number of times the attempt to receive the response message failed;

When the central MCU receives the response message, the number of attempts to fail due to the failure to receive the response message is zero. Only the number of times the central MCU has not received the response message continuously indicates that the host is actually faulty. Therefore, when the platform is faulty, When the number of times that the single-chip microcomputer does not receive the trial information is greater than the set MAX_TIES, the platform single-chip microcomputer sends an error instruction; if the number of consecutive times that the central single-chip microcomputer does not receive the response information is greater than the set MAX_TIES, the central single-chip microcomputer sends an error instruction; The set MAX_TIES is an integer greater than 1.

Therefore, when the remote monitoring center host fails, the central error reporting device reports an error, and when the environmental monitoring platform fails, the platform error reporting device reports an error. The error reporting method is different, and it can be judged from the error signal whether the host or the display is faulty.

The above description of the exemplary embodiments of the present invention has been provided for purposes of illustration and description. It is not intended to be exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations will be apparent to those skilled in the art. The embodiment was chosen and described in order to facilitate a better understanding of the principles of the invention and the application of the embodiments of the invention . It is intended that the scope of the invention be defined by the claims

Claims

The environment monitoring remote communication fault detection system based on single chip microcomputer comprises: a central single chip microcomputer, a central error reporting device, a platform single chip microcomputer, a platform error reporting device; the central error reporting device is connected with the central single chip microcomputer through a data line, the The platform MCU is in communication connection with the central MCU, and the platform error reporting device is in communication connection with the platform MCU.
The system for monitoring a remote communication fault detection based on a single chip according to claim 1, wherein:

The central single-chip microcomputer is configured to send the attempt information to the platform single-chip microcomputer according to the defined file transfer protocol timing, and receive the response information sent by the platform single-chip microcomputer, and record the number of attempts to fail because the response information is not received. And sending an error instruction to the central error reporting device according to the number of failed attempts;

The central error reporting device is configured to send an error signal according to an error instruction sent by the central single chip microcomputer;

The platform microcontroller is configured to receive the attempt information sent by the central single chip, and after receiving the attempt information, send a response message to the central single chip, and also record that the attempt is not received. The number of attempts to fail the information, and according to the number of failed attempts, sends an error instruction to the platform error reporting device;

The platform error reporting device is configured to send an error signal according to an error instruction sent by the platform single chip microcomputer.
The system according to claim 1, wherein the central single-chip microcomputer is a single-chip computer of a remote monitoring center host, and the platform single-chip computer is a single-chip computer for monitoring an environmental monitoring platform of the station.
The system for monitoring a remote communication fault detection based on a single chip according to claim 1, wherein the central single chip microcomputer and the platform single chip device respectively comprise The communication module includes a wireless communication connection between the central single chip computer and the platform single chip microcomputer through a communication module.
The method for detecting remote communication faults based on single-chip microcomputer is characterized in that it comprises the following processes:

Defining a file transfer protocol, and the central MCU periodically sends the test information according to the file transfer protocol;

The attempted information is received by the platform microcontroller.
The method according to claim 5, wherein the method further comprises the following process:

If the platform MCU receives the attempt information, and sends response information according to the attempt information;

If the platform microcontroller does not receive the attempted information, recording the number of attempts to fail because the attempted information is not received;

According to the number of times that the platform single-chip microcomputer does not receive the trial information continuously, the platform single-chip microcomputer sends an error instruction, and starts the platform error reporting device to report an error;

The central single chip receives the response information sent by the platform single chip microcomputer;

If the central microcontroller does not receive the response message, recording the number of attempts to fail due to not receiving the response message;

According to the number of times that the central single-chip microcomputer does not receive the response information continuously, the central single-chip microcomputer sends an error instruction, and starts the center error reporting device to report an error.
The method for detecting a remote communication fault based on a single-chip microcomputer according to claim 6, wherein when the number of times that the platform single chip microcomputer does not receive the trial information continuously is greater than the set MAX_TIES, the platform microcontroller transmits Error instruction

If the number of times that the central single-chip microcomputer does not receive the response information continuously is greater than the setting MAX_TIES, the central microcontroller sends an error instruction; said MAX_TIES is an integer greater than 1.
The method for detecting a fault of an environmental monitoring remote communication based on a single chip according to claim 4, wherein when the platform MCU receives the attempt information, the number of attempts to fail due to failure to receive the trial information is returned. zero;

When the central MCU receives the response information, the recorded number of failed attempts due to failure to receive the response information is zeroed.