Stirring building or station embedded control system

An embedded control and mixing plant technology, applied in mixing plants, control devices, mixing operation control, etc., can solve the problems of poor moisture resistance, low reliability, single overshoot control means, etc., to solve system instability , Improve system stability, change the effect of complex wiring

Inactive Publication Date: 2012-02-15
ZHENGZHOU HYDRAULIC MACHINERY
5 Cites 17 Cited by

AI-Extracted Technical Summary

Problems solved by technology

At present, there are mainly the following methods for the control system of the mixing building (station): 1. The "batching controller + PLC + PC" control system has the disadvantage that the batching controller has certain limitations in completing the batching measurement, and it does not have Buckle weighing function, single overshoot control method, closed software and hardware, limited resources and functions, slow parameter setting and data recording speed, low reliability, etc.
2. The "board card + PC" control system (IPC) has the disadvantages of poor vibration resistance, shock resistance, and moisture resistance in terms of hardware and inconvenient maintenance, and there is no strong real-time operating system and deterministic control in terms of software. , easy to crash, etc.
3. The "PLC+PC" control system has the disadvantages of poor openness, weak communicatio...
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Abstract

The invention discloses a stirring building or station embedded control system, which comprises an embedded industrial controller, wherein the communication interface of the embedded industrial controller is in communication connection with a display, an upper computer and an industrial Ethernet switch; the communication interface of the industrial Ethernet switch is connected with an input/output (I/O) controller; the signal input interface of the I/O controller is connected with the signal output end of a weighing sensor through an analog input module, and is in signal connection with a field switch through an on-off input module and an intermediate relay; the signal output interface of the I/O controller is connected with the control end of a field execution element through an on-off output module and an intermediate relay; the signal input end of the industrial Ethernet switch is connected with the signal output ends of a temperature detector, a slump detection device, a level sensor and a sand water measuring instrument; and the control output end of the industrial Ethernet switch is connected with the control input ends of a printer and a large display screen. The system has the advantage of realizing production automation of proportioning, unloading and concrete discharge in a stirring machine.

Application Domain

Control apparatusMixing operation plant

Technology Topic

Industrial EthernetControl system +11

Image

  • Stirring building or station embedded control system
  • Stirring building or station embedded control system
  • Stirring building or station embedded control system

Examples

  • Experimental program(1)

Example Embodiment

[0020] like figure 1 , 2 As shown in the figure, the embedded control system of the mixing building and station of the present invention includes an embedded industrial controller (PAC: Advantech UNO-2170KW, 1.6GHz, with a 512KB secondary cache processor; memory: 512M, and an additional 200pin DDR memory expansion slot; supports wide-range DC/AC power input, dual network ports, 4COM, 5USB 2.0, CF card, PC/104+ expansion interface); the communication interface of the embedded industrial controller is respectively connected with the display, host computer, Industrial Ethernet switch (EKI-2525; 5 10/100Mbps Ethernet ports; 8-slot distributed rack: ADAM-5000/TCP; CPU: RISC; Memory: 4M) communication connection; the industrial Ethernet switch communication interface An I/O controller (ADAM-5055S; 8 inputs; 8 outputs; electrical isolation: 2500VDC.) is connected; the signal input interfaces of the I/O controller respectively pass through the analog input module (ADAM-5017P; distinguish Rate: 16bit; electrical isolation: 3000VDC) is connected to the signal output terminal of the load cell, and is connected to the on-site switch signal through the switch input module (ADAM-5056S; 16 outputs; electrical isolation: 2500VDC) and the intermediate relay; I/O control The signal output interface of the device is connected to the control terminal of the field actuator through the switch input module (ADAM-5056S; 16 outputs; electrical isolation: 2500VDC) and the intermediate relay; The signal output end of the degree detection device, the material level sensor, and the sand water measuring instrument are connected; the control output end of the industrial Ethernet switch is respectively connected with the control input end of the printer and the large-screen display screen.
[0021] The slump detection device is composed of a current transformer for detecting the current signal of the mixer motor and a voltage transformer for the voltage signal. The slump value is obtained by comparing the collected current and voltage values ​​of the mixer motor with the laboratory data.
[0022] There are a plurality of the weighing sensors, which are respectively arranged at the positions of each weighing bucket on site; the on-site switch signals are respectively the limit switch signals installed at the positions of each weighing bucket door, silo door, and the discharge door of the mixer; The actuators are contactors for controlling mixers, screw conveyors, belt conveyors, and water pumps, respectively, and electromagnetic air valves for controlling scale bucket doors, silo doors, and mixer discharge doors; and the temperature detector is The temperature sensor installed in each aggregate bin and powder bin is used to detect the temperature of each bin; the material level sensor is installed in each aggregate bin and powder bin to detect the material inventory; The sand water measuring instrument is installed at the position of the outlet of the sand silo.
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