CN1558574A - A method and system for realizing wireless industrial monitoring by using a mobile phone - Google Patents

Abstract

The invention discloses a method and system for realizing wireless industrial monitoring by using a mobile phone. The method is to use the Java function supported by the mobile phone to download the monitoring terminal subsystem into the memory of the mobile phone and run it on the K-Java virtual machine of the mobile phone, so as to complete the data monitoring through the following data flow: 1) The user downloads and installs the monitoring terminal on the mobile phone The subsystem is initialized; 2) The mobile phone monitoring subsystem submits a registration request, and the industrial monitoring data server completes the authority distribution through identity authentication; 3) The mobile phone monitoring subsystem submits monitoring instructions through the wireless data network; 4) The industrial monitoring data server completes instruction processing , and return the result. The industrial monitoring method adopts the widely used mobile phone as the basic remote monitoring terminal, has the characteristics of convenient system construction, low cost, convenient use and maintenance, and can realize long-distance mobile monitoring, graphical interface interaction, and authority control. The invention also provides a system implemented by applying the method, which is composed of a mobile phone monitoring subsystem, a mobile communication network, the Internet, and an industrial monitoring data server.

Description

A method and system for realizing wireless industrial monitoring by using a mobile phone

Technical field

The invention relates to the field of industrial automation, in particular to a method and system for realizing wireless industrial monitoring by using a mobile phone.

Background technique

Traditional industrial monitoring information integration (SCADA, Supervisory Control And Data Acquisition System) is generally carried out within the enterprise LAN. Due to the limitation of the wired LAN, the monitoring terminal can only be limited to the vicinity of the industrial site covered by the wired network. The characteristics of modern industrial monitoring require monitoring technology to meet the following requirements:

1) Remote monitoring: Industrial production and manufacturing systems generally operate 24/7 throughout the year. However, due to various reasons, technical supervisors, production supervisors, and business decision-makers cannot maintain continuous and real-time monitoring of production data. Remote monitoring means that the above-mentioned personnel can master the key operating data of the industrial site through modern communication technology and monitoring technology even outside the industrial site, and make timely decisions and adjustments.

2) Multi-client: For a large-scale industrial site, there are often multiple monitoring indicators, such as production operation data, equipment operation data, etc. Due to different work divisions, different staff have different emphasis on each monitoring indicator, and it is possible to monitor an important indicator at the same time.

3) Weak real-time performance: The staff are required to track the data at the monitoring site in real time, to grasp the operating data of key production processes and key equipment, as well as the trend of data changes in the most recent time period. But it must be pointed out that this kind of monitoring technology is a supplement to the monitoring equipment on the industrial site, not a substitute. Such monitoring requirements have relatively weak real-time requirements.

4) Visual graphic user operation: Like the monitoring site, it can realize visualization of industrial tag selection, viewing, information modification and other operations, which is easy to learn and use.

5) Authority control: Industrial field data involves the core business of the enterprise, and authority control requires different responsibilities and different personnel to be given different authority.

For enterprise-level applications, there is currently no cheap, easy-to-use, and efficient solution for the above-mentioned long-distance, multi-user, and weak real-time monitoring requirements. The development of mobile communication network and the popularization of JAVA mobile phone provide a new and effective method to solve this kind of information integration problem with wide coverage.

Wireless communication network is an important part of wireless monitoring system, which can be divided into wireless private network and public wireless communication network. Public mobile communication network is currently the most common, cheapest and most mature technology. As we all know, mobile phones are the most popular mobile communication tools in modern society. As a portable communication tool for users, mobile phones have a natural affinity for users. The popularity and convenience of using mobile phones to realize remote monitoring is unmatched by any other technical means.

Wireless JAVA, also called K-JAVA, is Sun's wireless JAVA software platform technology specially used for embedded devices. As a more advanced and secure programming language, its relationship with mobile phones is like that of software and computers. The built-in J2ME version Mobile phones on the Java platform are called Java phones. With the introduction of more and more Java mobile phones, it has become a practical solution to apply Java mobile phones to industrial industries and use the mobile phone's Java extension functions to realize wireless industrial monitoring.

Through the above introduction, the monitoring client subsystem can be embedded in the mobile phone, and through the lightweight logical operation and data display of the monitoring data on the mobile phone monitoring subsystem, data exchange can be performed with the industrial monitoring server through the mobile communication network. Based on the above principles, the present invention provides an industrial monitoring method with the characteristics of wireless remote monitoring, multi-client concurrent processing, graphical interface interaction, strong real-time performance, and controllable authority levels to solve such information integration problems with wide coverage. And developed a system based on this method.

Contents of Invention

The purpose of the present invention is to provide a method and system for realizing wireless industrial monitoring by using a mobile phone.

The data processing flow of this method includes the following parts (as shown in Figure 1):

1) The user downloads and installs the monitoring subsystem on the mobile phone and completes the initialization

2) The mobile phone monitoring subsystem submits a registration request, and the industrial monitoring data server completes the authority distribution through identity authentication

3) The mobile phone monitoring subsystem submits monitoring instructions through the wireless data network

4) The industrial monitoring data server completes the command processing and returns the result

The system that uses mobile phones to realize wireless industrial monitoring has a mobile phone monitoring subsystem, wireless data network, Internet, and industrial monitoring data server connected in sequence. The mobile phone monitoring subsystem is connected to the Internet through a mobile communication network, and the industrial monitoring data server is connected to the Internet through a dedicated data line. .

Compared with existing similar inventions, the present invention has the following advantages:

1) The present invention directly utilizes the widely used mobile phone as the wireless monitoring subsystem, and uses K-Java to expand the functions. Since the mobile phone is a portable communication tool for users, it has a natural user affinity. Therefore adopting the method described in the present invention to realize remote monitoring, its popularity and convenience are unmatched by any other technical means.

2) The monitoring subsystem performs data transmission through the mobile communication wireless network. With the further development of the mobile communication wireless network, its bandwidth will be further increased, which ensures the feasibility of the method of the present invention from a practical point of view. At the same time, the monthly subscription service of the mobile communication network can be opened, which ensures the real-time online without time limit, and ensures the feasibility of the method of the invention from the perspective of cost.

3) This system can use the mobile phone number as the unique id to identify the user, and the server adopts the multi-user concurrent processing function, which can ensure that multiple clients can monitor the industrial site at the same time.

Description of drawings

Figure 1 is a block diagram of a wireless industrial monitoring system realized by a mobile phone;

Fig. 2 is a block diagram of industrial monitoring data server functional modules in the present invention;

Fig. 3 is a schematic diagram of a wireless industrial monitoring instruction format in the present invention;

Fig. 4 is a block diagram of the functional modules of the mobile phone monitoring subsystem in the present invention.

Detailed ways

A method for realizing wireless industrial monitoring by utilizing the Java function of a mobile phone, especially an embedded mobile phone. The monitoring instructions involved are used for a remote monitoring computer to submit a monitoring application request to a data server, such as querying real-time data from an OPC server and querying a historical database. historical data, etc. The data server executes the client's request, and returns the result to the client of the user's wireless industrial monitoring system, and finally feeds back to the user by displaying it on the mobile phone screen. This method comprehensively adopts wireless communication technology, JAVA technology, Internet technology, and database technology can realize ultra-remote authorized access to enterprise internal data by users through mobile phones, and query real-time production data and equipment data conveniently and quickly.

The wireless industrial monitoring subsystem on the mobile phone is the standard bytecode of Java, which can be interpreted and executed by the K-Java virtual machine. This code is compressed into a standard JAR format and waits for the mobile phone to download in the following way:

1) Infrared mode: The infrared interface of the mobile phone faces the interface of the computer with infrared function, and then activates the infrared function of the mobile phone and the infrared function of the PC to complete the download.

2) Data line method: Connect one end of the transmission line to the interface of the computer correctly, and connect the other end to the mobile phone. After connecting, install the driver, and the program will automatically detect the location of the transmission line port. Use your phone's download function to complete the download.

3) OTA mode: also called Over-the-Air (Over-the-Air). Through OTA, users can download the wireless industrial monitoring subsystem to the designated memory of the mobile phone as conveniently as downloading programs in the Internet browser.

The initialization operation of the wireless industrial monitoring subsystem is completed through the K-JAVA virtual machine that can execute the JAVA byte code in the mobile phone. The mobile phone monitoring subsystem first detects the memory space of the mobile phone, and establishes the following three functional module units under the condition of ensuring that the memory space is sufficient: interface logic unit (GUI), recording storage system unit (RMS), and data transmission logic unit (DTI). This work is done automatically by the subsystem.

The working principle of the mobile phone monitoring subsystem is shown in Figure 3.

The GUI handles the low-level operations of interacting with the user. First, respond to the input data of user information by initializing the six image input screens of user registration screen, user login screen, real-time data monitoring screen, historical data monitoring screen, user information modification screen, and user logout screen, and confirm the validity of user input at the same time.

For example: when the passwords entered twice during user registration are inconsistent, an error message will be displayed, requiring the user to re-enter valid data. After confirming that the data information is valid, the valid information is compiled into byte data and stored in RMS. The GUI is also responsible for reading out the data in the RMS and displaying it on the screen of the mobile phone; for the expansion function subsystem that meets other monitoring requirements, a function expansion function interface is reserved for future function expansion.

RMS is a simple record management system for data storage built in the phone's memory. It is similar to a small database system built on the mobile phone. Each table (Table) corresponding to the database is called a Record Store (RS), and each item in the Record Store is called a Record. Record Store is a file composed of Record, and its integrity is maintained by the K-Java virtual machine of the mobile phone platform. Store the byte data obtained by the GUI into the RMS in the form of a record table;

DTI is responsible for triggering the networking function of the mobile phone to establish a connection with the nodes of the industrial monitoring server on the Internet through the wireless network. Only when connecting to the wireless network for the first time, the mobile phone networking function is triggered.

The industrial monitoring data server is connected with the Internet and the industrial database within the enterprise at the same time. There are three basic modules on the application server side, real-time monitoring module, instruction processing module, and information feedback module. The real-time monitoring module adopts multi-terminal concurrent processing technology to create an independent thread for each newly connected user to complete the same monitoring function. It is mainly responsible for monitoring the network connection and waiting for the connection of the client. Once it receives the corresponding request from the mobile phone monitoring subsystem , establish connection with the mobile phone monitoring subsystem through the Internet and wireless network in turn, and receive data, and then deliver the received information to the instruction processing module. The instruction processing module is responsible for parsing the received instructions into standard SQL statement instructions and interacting with the industrial database. Each query will retrieve the user information table, which contains user permission information. For some key data, only users with high authority levels are allowed to perform data query and monitoring, and for general data, all users are allowed to perform data query and monitoring. It is also possible to designate the user to monitor data in advance according to the mobile phone number registered by the user, so as to achieve the division of authority and ensure the security of the core data and core business of the enterprise. At the same time, after the query result of the database is returned, the corresponding code is sent to the information return module for calling. The information feedback module is responsible for sending the encoded query results back to the client.

A complete monitoring task can be completed by executing the following commands in sequence:

1) Command REG

Instruction description: User registration instruction, submit a registration request to the server through the REG instruction

   The server returns true to indicate successful registration, and returns false to indicate registration failure

Defeated.

Parameters: id——a mark used to judge the uniqueness of the user, and the SIM card number can be used;

password——password for legitimate user login;

tagNO——used to specify the monitoring tag number, usually for a specific system;

width——the screen horizontal resolution of the mobile phone where the client subsystem is located;

height——The vertical resolution of the screen of the mobile phone where the client subsystem is located

Server return value: true—indicates that the registration is successful;

         false——indicates that the registration failed

Parameter input screen: user registration screen

2) command LOGIN

Instruction description: user login instruction, registered users will register mobile phone number and password as

Parameter login system

Parameters: id——a mark used to judge the uniqueness of the user, and the SIM card number can be used;

password——password for legitimate user login;

Server return value: true—indicates that the login is successful;

         false——indicates that the login failed

Parameter input screen: user login screen

3) Command REAL

Instruction description: Real-time data monitoring, refresh the screen every period time. displayed on the screen

There is the tagNO value returned from the server.

Parameters: period—the time interval for regularly refreshing data during real-time monitoring.

Server return value: string[]——real-time data corresponding to each tagNO

Parameter input screen: real-time data monitoring screen

4) command HIST

Instruction description: historical data monitoring. Generating historical trends on the server side through parameter input

picture. The returned *.png historical data trend graph and monitoring information are displayed on the screen

Display in the diagram

Parameters: period - the span from the current time;

tagNO——monitoring tag number;

periodNo - time span count before and after the current monitoring time;

Server return value: image—historical data trend graph, *.png format

Parameter input screen: historical data monitoring screen

5) Instruction SET

Instruction description: user information modification

Parameters: password - change the login password;

width——change the horizontal resolution of the mobile phone;

height——Change the vertical resolution of the mobile phone;

    tagNO——Change the monitoring bit of the client

Server return value: true——modify settings successfully

          false——modify settings successfully

Parameter input screen: user information modification screen

6) Command LOGOUT

Instruction description: user logout screen

Server return value: true——registration failed

false——Logout failed

Parameter input screen: user logout screen

The data transmission between all subsystems and the server adopts the following encoding method:

″<protocol>″:″<address>″:″<parameters>″

Among them: <protocol> represents the protocol in the process of data transmission

<address> represents the IP address of the industrial monitoring data server

<parameters> required transmission data

For example:

"http": "10.13.22.88": "13588404944 LOGIN("13588404944", "aaa")"

The above command is used to establish a connection with the application server 10.13.22.88 through the http protocol, and at the same time make a login request to the server. The login user is: 13588404944, and the password is aaa.

The server judges the validity of the command, verifies in turn whether the registered mobile phone number exists and whether the password is correct, and returns the result string through the connection channel. The return result is false may be due to the following reasons: the user password is incorrect, the network is unreachable, and the database operation fails.

For the processing of historical monitoring instructions, the industrial data monitoring server generates historical trend graphs according to the query results. The image format is *.png format, and the graphic size is controlled according to the mobile phone information to adapt to the size of the mobile phone screen. The following information can be included in the historical trend graph:

1) Monitoring time span sequence

2) bit number numerical sequence

3) Tag name

4) Introduction to bit number

5) Historical trend curve.

Claims (9)

1. one kind is utilized mobile phone to realize the method that wireless industrial is monitored.It is characterized in that, finish wireless remote monitor task by following step:

1) user's download is installed the Monitor And Control Subsystem of mobile phone end and is finished initialization;

2) the monitoring mobile phone subsystem is submitted register requirement to, and the industrial monitoring data server is finished right assignment by authentication;

3) the monitoring mobile phone subsystem is submitted monitored instruction to by mobile communications network;

4) the industrial monitoring data server is finished instruction process, and return results.

2. a kind of method of utilizing mobile phone to realize the wireless industrial monitoring according to claim 1, it is characterized in that, said user's download is installed the wireless industrial Monitor And Control Subsystem of mobile phone end and is finished initialization, what adopt is infrared mode, cellular phone data line mode, OTA network download mode, the mobile monitor subsystem is downloaded to mobile phone EMS memory, set up graphical user's interactive interface, carry out mobile phone state and detect, monitor interactive interface initialization and initialization of variable.

3. a kind of wireless industrial method for supervising that utilizes mobile phone to realize according to claim 2, it is characterized in that, said monitoring mobile phone subsystem is to run on the functional module on the K-Java virtual machine in the mobile phone, comprise interface logic unit GUI, system recorder memory unit R MS, data transfer logic cells D TI, wherein:

1) GUI is responsible for Memory Allocation, interface initialization, the input of monitoring demand information, information correct format coupling, comprises that at least the user registers screen, the user lands screen, real time data monitor screen, historical data monitor screen, user profile modification screen, user log off screen;

2) RMS is responsible for foundation, information stores, the information deletion of internal database;

3) DTI be responsible for triggering mobile phone wireless network savvy, information coding, with server connect passage, information is submitted to and subsystem in leave function expanded function interface and be used for following function expansion.

4. a kind of method of utilizing mobile phone to realize the wireless industrial monitoring according to claim 1, it is characterized in that, described monitoring mobile phone subsystem is submitted register requirement to, the industrial monitoring data server is finished right assignment by authentication, and the user submits to information can comprise unique identification, password, monitor message and terminal phone information etc.Wherein information header should comprise sign-on ID.The industrial monitoring data server is judged information header, judges the log-on message reasonability simultaneously, distribute data monitoring grade authority, return authentication information.

5. a kind of method of utilizing mobile phone to realize the wireless industrial monitoring according to claim 1, it is characterized in that, said monitoring mobile phone subsystem is submitted monitored instruction to, can specify real-time monitoring and inquiry instruction and the inquiry of historical data instruction, carry out the data flow mode and encode the back to long-range industrial monitoring data server submission monitoring request, remote server stands ready in the network monitoring mode and receives instruction, in case monitored instruction arrives and accept after be about to resolve to the corresponding monitor data handling process and the result of implementation of return instruction.

6. a kind of method of utilizing mobile phone to realize the wireless industrial monitoring according to claim 1, it is characterized in that, said industrial monitoring data server is finished instruction process and return results, and the industrial monitoring data server comprises instruction real-time listening module, command process module, information loopback module at least; It is by the information of real-time listening particular port, and the client of coming to be connected with request connects; And by interface channel, the information content that transmits is resolved to corresponding monitor data handling process, the result is returned to client after complete.

7. one kind is utilized mobile phone to realize the system that wireless industrial is monitored, it is characterized in that, it has monitoring mobile phone subsystem, radio data network, Internet, the industrial monitoring data server that connects successively, the monitoring mobile phone subsystem is connected with Internet by mobile communications network, and the industrial monitoring data server is connected with Internet by Leased line.

8. a kind of system that utilizes mobile phone to realize the wireless industrial monitoring according to claim 7 it is characterized in that said industrial monitoring data server has real-time listening module, information loopback module, and the and instruction processing module is joined respectively.User profile registration in the command process module, the inquiry of historical data, real time data inquiry, log-on message modify feature submodule explain to carry out and link to each other with database that server end adopts thread pool to handle the concurrent request of a plurality of client-end subsystem by SQL statement.

9. a kind of system that utilizes mobile phone to realize the wireless industrial monitoring according to claim 7, it is characterized in that said monitoring mobile phone subsystem keeps real-time online by mobile communication wireless network, realize that wireless monitor subsystem, industry spot monitoring server, industrial monitoring core database keep data sync.

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