CN104076719A - Industrial wireless sensor network on-off control system and method - Google Patents
Industrial wireless sensor network on-off control system and method Download PDFInfo
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- CN104076719A CN104076719A CN201410341735.0A CN201410341735A CN104076719A CN 104076719 A CN104076719 A CN 104076719A CN 201410341735 A CN201410341735 A CN 201410341735A CN 104076719 A CN104076719 A CN 104076719A
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Abstract
The invention relates to an industrial wireless sensor network on-off control system and method. The industrial wireless sensor network on-off control system is characterized by comprising control terminals and a monitoring terminal, the control terminals are arranged close to a switch value device, are in wireless communication with the monitoring terminal and are used for collecting, processing, transmitting, transferring and controlling switch value signals, and the monitoring terminal is connected with a monitoring processing center through a protective device to achieve transmission and transferring of the switch value data of the control terminals and the data of the monitoring processing center, networking and data communication. The communication distance between the control terminals and the wireless communication distance between the control terminals and the monitoring terminal can reach 2700 m, the control terminals receive the networking pairing information sent by the monitoring terminal, one-to-one, one-to-many, many-to-one and many-to-many pairing of the switch value input/switch value output between the control terminals is achieved, and the star network is constructed. Sharing and linkage of multiple working devices are achieved, the working efficiency is improved, the wired arrangement cost of wires and maintenance cost are lowered, and consumed time is shortened.
Description
Technical field
The present invention relates to a kind of industrial wireless sensing net on-off control system and method.Belong to radio communication and embedded system technology field.
Background technology
Technical of industrial control system development mainly experiences manual control, semiautomatic control and the intelligent three phases of controlling.Manual control mode does not have Central Control Room, controls entirely by virtue of experience operation, random large.Semiautomatic control mode terminal operating supplemental characteristic generally transmits by wire cable, from Central Control Room, it is arranged.Terminal device carries out operation automatically according to the parameter arranging, and in operation process, can carry out necessary intervention according to actual conditions, also can or order by wire cable control operation at Central Control Room parameters, or carry out controlled in wireless by loading wireless device.The intelligent method of operation mainly adopts distance control mode, and operating personnel controls in Central Control Room, sends instruction, and terminal device carries out work according to instruction.In the course of work, operating personnel can monitor and intervene at Central Control Room.If on-the-spot place is large, there are multiple devices, artificial remote intervention will be difficult for realizing, and therefore, which is generally used in the little situation of field apparatus, and pseudo-ginseng tail generating as large in HDK electric power is adopted in this way.The wire signal transmission of traditional Long-distance Control based on PLC controlled.Every station terminal carries out collection and the processing of wire signal by the PLC of self, and processing result information is sent to Central Control Room by wire cable, and this mode easily causes cable wearing and tearing year in year out, affects the stability of signal transmission.
For this phenomenon, utilize wireless communication technology, carry out control information transmission, i.e. point-to-point control.Here point-to-point control adopts double-direction radio intelligent controller, can replace the control cables of terminal device completely, realize controlled in wireless, thereby the control cables fracture that solves traditional control system causes the problem that has a strong impact on production, safeguard and change conveniently simultaneously, saved a large amount of human and material resources and financial resources.Point-to-point control needs two pairings to use, mutually control, input state controls to the output to method, apparatus, equipment has self-diagnostic function simultaneously, detect the whether function such as online, fault outputting alarm of method, apparatus, has simple, easy to use, practical, the steady performance of configuration.
Point-to-point double-direction radio intelligent controller has been avoided in wire transmission causing control signal Loss because of cable bad or loose contact, still, also brings the shortcomings such as frequency range utilization factor is low, efficiency is not high.Set up industrial wireless sensing net by multiple control terminals, realize control terminal switching value input/switching value outlet chamber one to one, the configuration of one-to-many, many-one, multi-to-multi, reach a control terminal, control many output devices, solve the control problem that on-site terminal number of devices is many, distribution is unconcentrated.
Summary of the invention
The object of the invention is to solve the deficiency that prior art exists, a kind of industrial wireless sensing net on-off control system and communication means are provided.Object is that just monitor terminal, control terminal are set up into industrial wireless sensing net, by configuration, build control terminal switching value input/switching value outlet chamber one to one, one-to-many, many-one, multi-to-multi shine upon, realize the interlock of control terminal, improve equipment efficiency of usage, strengthen whole network life cycle.
Technical matters solved by the invention can realize by the following technical solutions:
A kind of industrial wireless sensing net on-off control system, comprises monitor terminal and control terminal, utilizes wireless communication technology, builds industrial wireless sensing net.
Specifically, described control terminal is arranged near switching value equipment place, communicates, for collection, processing, transmission, forwarding and the control of switching value signal with monitor terminal by communication;
Further, described monitor terminal is connected with monitoring processing enter by protective device, arrive monitoring processing enter, and processing enter data is monitored in forwarding or control terminal is arrived in order, realize networking and data communication for forwarding control terminal switching value data.
Further, described industrial wireless sensing net on-off control system is made up of a monitor terminal and Duo Tai control terminal, by star schema, builds network, realizes many control terminal information sharings and interlock.Realize control terminal configuration and control by monitor terminal, and configuration network, can carry out flexile configuration according to actual conditions, reach utilization of resources optimum.
The data communication technology of aforesaid industrial wireless sensing net on-off control system, is characterized in that, comprises the following steps:
1) control terminal is installed near switching value equipment, the two connects by wired, and switching value equipment adopts low-tension supply power supply, or adopts the Power supply of control terminal;
2) monitor terminal is installed near monitoring processing enter by protective device, the two connects by wired, and monitor terminal power supply can adopt the power supply of monitoring processing enter or power supply separately;
3) control command of the wired reception monitoring of monitor terminal processing enter, through processing, each control terminal in mass-sending industrial wireless sensing net, sets up Star Network;
4) command information that control terminal reception monitor terminal is sent is resolved, realize each control terminal switching value input/switching value outlet chamber in industrial wireless sensing net one to one, the configuration of one-to-many, many-one, multi-to-multi, and configuration information is preserved;
5) after monitor terminal has configured, feed back to monitor terminal by wireless transmission, monitor terminal is transmitted to configuration result monitoring processing enter and preserves, networking success;
6) switching value is input to after control terminal, and electric signal is converted into 0 or 1 digital signal by control terminal, and according to unpaired message, radios to the control terminal switching value output of pairing;
7) data that control terminal wireless receiving comes to the control terminal transmission of pairing are resolved, the output of output control switch amount;
8) monitoring processing enter realizes the real-time status of the control terminal in monitoring industrial wireless sensing net by monitor terminal, also can realize the unpaired message of adjusting control terminal.
Advantage of the present invention and effect: compared with prior art, industrial wireless sensing net on-off control system provided by the invention realizes configuration and the control to control terminal by monitor terminal.Can realize one to one, the flexible configuration of one-to-many, each control terminal can be temporarily as main control terminal in order to control the duty of other control terminal in whole network.Avoid because of indivedual equipment failures, cause region work to complete, and system effectiveness is low; Also can, according to field condition, by monitor terminal, equipment working state be set.By networking mode, realize equipment effect and maximize.
Brief description of the drawings
Fig. 1 is the control terminal figure of industrial wireless sensing net on-off control system;
Fig. 2 is the monitor terminal figure of industrial wireless sensing net on-off control system;
Fig. 3 is the network topology structure figure of industrial wireless sensing net on-off control system;
Fig. 4 is the network configuration structural representation of industrial wireless sensing net on-off control system.
Specific embodiments
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Fig. 1 is the control terminal figure of industrial wireless sensing net on-off control system.8 way switch input quantities are made up of two 4 tunnel input quantities, are input to processing single chip by photoelectric isolating circuit, and photoelectric isolating circuit makes to realize electrical isolation between switch input quantity and processing single chip, strengthen system stability.Pilot lamp independently shows the on off operating mode of 8 input switch amounts.Wireless singlechip receives wireless signal, conversion is input to processing single chip, and the information wireless also processing single chip being transmitted sends simultaneously.Processing single chip is resolved the information that wireless singlechip transports, and result is passed through to photoelectric isolating circuit, and 8 way switch amounts are controlled in output.DC-DC circuit offers processing single chip, wireless singlechip, radiofrequency signal processing, pilot lamp, 8 way switch input quantity working powers.
Fig. 2 is the monitor terminal figure of industrial wireless sensing net on-off control system.RS232 communication interface, RS232/485 communication interface transmission cable data are to processing single chip, and object is that in Industry Control, other module is carried out wire communication, plays compatibility function.Wireless singlechip receives wireless signal, conversion is input to processing single chip, and the information wireless also processing single chip being transmitted sends simultaneously.Processing single chip is resolved the wireless messages that wireless singlechip transports, and the wired information transporting by RS232 communication interface, RS232/485 communication interface.DC-DC circuit offers processing single chip, wireless singlechip, radiofrequency signal processing, pilot lamp working power.
Based on hub-and-spoke configuration, control terminal, monitor terminal are combined, build the network topology structure of industrial wireless sensing net on-off control system, as shown in Figure 3.Industrial wireless sensing net on-off control system adopts the layer-stepping Star Network structure of 3 layers, and the ground floor (workstation) of network topology structure comprises monitoring processing enter and monitor terminal.The second layer is the Star Network structure of the composition taking workstation as core, adopts control terminal as radio node.The 3rd layer is to form Star Network structure taking a certain node in the second layer as core, adopts control terminal as radio node.Monitor terminal receives by RS-232 communication interface the configuration order that monitoring processing enter is sent, and configures accordingly, and wherein Modbus communication protocol is supported in data communication.The IO pairing that control terminal is sent by wireless receiving monitor terminal is ordered, and realizes the output channel of other control terminal of input channel Long-distance Control of control terminal.Wirelessly transmitting data frame total length is 20 bytes, comprises the frame head of 2 bytes, the data type of 1 byte, the end mark of the data field of 16 bytes and 1 byte.
Fig. 4 is the network configuration structural representation of industrial wireless sensing net on-off control system.As can be seen from Figure 4; between monitoring processing enter and monitor terminal, carry out wire transmission data by protective device; monitor terminal and control terminal; between control terminal and control terminal, pass through wirelessly transmitting data; each control terminal can be temporarily as main control terminal in order to control the duty of other wireless switching amount control terminal in whole network; and the input quantity of control terminal and output quantity pairing situation have diversity, alms giver will comprise step in fact:
1) control terminal is installed near switching value equipment, the two connects by wired, and switching value equipment adopts low-tension supply power supply, or adopts the Power supply of control terminal;
2) monitor terminal is installed near monitoring processing enter by protective device, the two connects by wired, and monitor terminal power supply can adopt the power supply of monitoring processing enter or power supply separately;
3) control command of the wired reception monitoring of monitor terminal processing enter, through processing, each control terminal in mass-sending industrial wireless sensing net, sets up Star Network;
4) command information that control terminal reception monitor terminal is sent is resolved, realize each control terminal switching value input/switching value outlet chamber in industrial wireless sensing net one to one, the configuration of one-to-many, many-one, multi-to-multi, and configuration information is preserved;
5) after monitor terminal has configured, feed back to monitor terminal by wireless transmission, monitor terminal is transmitted to configuration result monitoring processing enter and preserves, networking success;
6) switching value is input to after control terminal, and electric signal is converted into 0 or 1 digital signal by control terminal, and according to unpaired message, radios to the control terminal switching value output of pairing;
7) data that control terminal wireless receiving comes to the control terminal transmission of pairing are resolved, the output of output control switch amount;
8) monitoring processing enter realizes the real-time status of the control terminal in monitoring industrial wireless sensing net by monitor terminal, also can realize the unpaired message of adjusting control terminal.
9) if do not change configuration information, repeating step 6)-8); If change configuration information, repeating step 3)-8).
In sum, adopt after the present invention, can effectively utilize the advantage of wireless transmission, flexible configuration, transmitting, low cost etc.Between control terminal, wireless communication distance can reach 2700m farthest, and this has boundless application prospect in places such as large-scale stacker-reclaimer sports ground, harbours.
Claims (2)
1. an industrial wireless sensing net on-off control system, is characterized in that, comprising:
Control terminal: be arranged near switching value equipment place, communicate by communication with monitor terminal, for collection, processing, transmission, forwarding and the control of switching value signal;
Monitor terminal: be connected with monitoring processing enter by protective device, arrive monitoring processing enter for forwarding control terminal switching value data, and processing enter data monitored in forwarding or control terminal is arrived in order, realize networking and data communication.
2. the data communications method of industrial wireless sensing net on-off control system according to claim 1, is characterized in that, comprises the following steps:
1) control terminal is installed near switching value equipment, the two connects by wired, and switching value equipment adopts low-tension supply power supply, or adopts the Power supply of control terminal;
2) monitor terminal is installed near monitoring processing enter by protective device, the two connects by wired, and monitor terminal power supply can adopt the power supply of monitoring processing enter or power supply separately;
3) control command of the wired reception monitoring of monitor terminal processing enter, through processing, each control terminal in mass-sending industrial wireless sensing net, sets up Star Network;
4) command information that control terminal reception monitor terminal is sent is resolved, realize each control terminal switching value input/switching value outlet chamber in industrial wireless sensing net one to one, the configuration of one-to-many, many-one, multi-to-multi, and configuration information is preserved;
5) after monitor terminal has configured, feed back to monitor terminal by wireless transmission, monitor terminal is transmitted to configuration result monitoring processing enter and preserves, networking success;
6) switching value is input to after control terminal, and electric signal is converted into 0 or 1 digital signal by control terminal, and according to unpaired message, radios to the control terminal switching value output of pairing;
7) data that control terminal wireless receiving comes to the control terminal transmission of pairing are resolved, the output of output control switch amount;
8) monitoring processing enter realizes the real-time status of the control terminal in monitoring industrial wireless sensing net by monitor terminal, also can realize the unpaired message of adjusting control terminal.
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| CN105988421A (en) * | 2015-02-12 | 2016-10-05 | 上海磐颖实业有限公司 | Remote digital transmission control module integrating functions of transmitting, receiving, relaying and controlling |
| CN106547213A (en) * | 2016-10-13 | 2017-03-29 | 湖南工业大学 | A kind of soft-touch control interlocking collocation method |
| CN106658384A (en) * | 2017-01-16 | 2017-05-10 | 天津工业大学 | Industrial wireless sensor network switch control system and method |
| CN111836405A (en) * | 2020-07-21 | 2020-10-27 | 深圳市炬力北方微电子有限公司 | Wireless matching method and storage medium |
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Application publication date: 20141001 |