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Distributed digital boom control system (Distributive Digital Batten Control System) referred to as DDS, It uses highly reliable industrial fieldbus technology.

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Distributed digital boom control system (Distributive Digital Batten Control System) referred to as DDS,

It uses highly reliable industrial fieldbus technology, will be distributed in different locations of multiple nodes linked together, and through a control host as a central controller for unified monitoring and management, thus forming a distributed control system. The whole system uses a modular structure, greatly reducing the difficulty of field wiring, single bus technology, the maximum reduction in the amount of power cable. Greatly improving the reliability of the system. At the same time, the use of WINDOWS operating system based on the graphical user interface as a man-machine dialogue interface, with simple operation, reliable operation characteristics. On behalf of the stage of the latest technological development level.


The main functions of DDS are:



● Use high-precision incremental encoder for data acquisition to ensure accurate positioning;

● Using a fully distributed structure, the field wiring will be reduced by 70 percent;

● RTU intelligent control unit using the PLC design, high reliability;

● The console adopts the industrial field bus, and RTU data acquisition module to communicate, real-time collection of boom operating parameters;

● Set the upper and lower positions at any position on the line travel;

● Set a single free location at any location on the line trip;

● control any one of the uplink, downlink, positioning and stop;

● control any one of the upper limit of the line in place, the lower limit in place and the positioning point in place to stop;

● The use of mass storage technology, you can set up in a show more than 100 scenes of the line positioning design;

● In each scene design, you can set each line of different positioning location;

● can modify the content of the scene has been designed;

● In the performance, you can control the line position in any order of the scene;

● In the process of running the line, with automatic positioning error and automatic correction function, positioning error is less than ± 5mm;


System Features:



● Flexible configuration, can increase or decrease the number of boom;

● fully modular structure, greatly reducing the workload of the field wiring;

● highly reliable field bus technology to ensure the safety and reliability of system communication;

● Multiple fault diagnosis measures to ensure the safe and reliable operation of the system;

● accurate positioning accuracy, positioning error is less than 1cm;

● high reliability of the sensor technology, in any harsh environment without maintenance;

● highly intelligent self-learning function, which can effectively eliminate the positioning error caused by the mechanical device;

● Large capacity setting, the system can take up to 100 road boom;

● large-capacity scene settings and centralized control settings to ensure that any combination of complex needs of the scene;

● scene settings using the file system to save, with the scene import and export functions;

● easy to operate, easy to use, using a combination of traditional console and computer, the two can be controlled separately, each other does not affect;

● When the manual control, the sensor can also count. After the manual operation is completed, there is no need to reposition the boom.

● Automatic correction function, which can effectively eliminate the cumulative error of the boom. Truly maintenance-free.

● graphical user interface, the use of very simple.

● Multiple reliability design, the system is running very stable. To prevent the performance of the crash process.

● triple limit protection measures, to completely eliminate the boom boom failure occurred.


DDS系统构成:



 DDS system mainly consists of five parts: the main console (CSL), data acquisition unit (RTU), sensor unit (rotary encoder), PC system (PC), manual control unit.

 On the console, you can set the position (travel), speed (time), and with the action state.

 Location display and memory storage and other functions. On the console there are up, down and emergency stop buttons and separate joysticks. The whole control system has the advantages of convenient operation, safe and reliable.

 System connection block diagram shown in Figure 1:


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Figure 1 system block diagram

Main console instructions



● The main console is the central hub of the system. Through the RS232 and the host computer (pc) connected to accept the host computer to send the configuration information. Stored in the local large-capacity electronic disk. At the same time, will be running the position and status of the boom information sent to the host computer, displayed on the host computer.

● The main console and the host computer through RS232 (or network port) connected, and RTU through the highly reliable industrial field bus to communicate. Using automatic / manual dual backup system to ensure reliable operation.


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Figure 2 Desktop System Console

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Figure 3: Luxury floor-standing console

The tender uses the luxury floor console shown in Figure 3.


2.3 Intelligent control unit



● Intelligent control system mainly includes strong electric actuator, weak / strong electric conversion unit.

● 2.4 Motor wiring and data acquisition module unit (RTU)

● DDS boom control system of the biggest features: the system uses a fully distributed structure. The controller and the implementing agencies into an integrated device. In this way, the use of the field cable to a minimum, greatly reducing the difficulty of on-site construction and improve the reliability of the system.

● The distributed controller and the execution motor are combined together. These include: Actuator (AC contactor), data acquisition unit (RTU), data correction unit, sensor four parts.

● The AC contactor is used to control the forward, reverse and stop of the motor. AC contactor by the RTU control, can also be connected to manual / automatic dual-mode control.

● The data acquisition unit (RTU) is the core of the distributed controller. It receives the position information collected by the sensor and the control information sent from the console (CSL). After the operation, the data acquisition unit (RTU) is transmitted to the console through the fieldbus. The data is sent to the background PC for display. At the same time, when running to the set position, through the PLC control AC contactor for the corresponding action.

● The data correction unit is another major highlight of the system. Through this unit, the system can effectively eliminate the cumulative error caused by various causes such as mechanical error. To meet the requirements with expensive absolute encoders.


2.4 Sensor unit



The sensor uses a high-precision, maintenance-free rotary encoder as a data acquisition sensor. Sensor accuracy up to 1200 pulses / turn. In addition the system also has upper and lower limit sensor.


2.5 Background monitoring system



DDS boom control system background monitoring system based on WINDOWS operating system full graphical interface, easy to operate. While taking full account of the actual situation of the stage operation, the implementation of the second file management. Operation is very simple and convenient.


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办公地址:江苏省泰州市医药高新区鼓楼南路99号
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