CN203191786U - Multi-sensor dynamic data fusion control system - Google Patents

Abstract

Provided is a multi-sensor dynamic data fusion control system. The system comprises a user-oriented management terminal A which is connected with a node main server B through a local area network, the node main server B which is used to execute and manage dynamic information fusion self-adaptive algorithms, and a field control system C used for data acquisition, information processing and control on a working site. The node main server B is connected with the field control system C through an I2C bus. The management control system can uniformly process different types of feedback information, and can drive a plurality of different type terminal actuators to perform corresponding control actions at the same time, thereby effectively solving problems of dynamic information fusion of multi-dimensional sensor signals.

Description

Multi-sensor dynamic data fusion control system

technical field

The utility model relates to the field of industrial control, in particular to a control system for fusion control of dynamic data collected by various industrial sensors. the

Background technique

In the existing industrial control field, a variety of sensors are needed for information collection and monitoring. Based on the collected and monitored information, terminal control is realized through a variety of corresponding terminal controllers. However, in some complex or harsh industrial sites, it is often necessary to use a large number and different types of sensors and end effectors at the same time for parameter acquisition and adjustment. In this case, the main problem is that a large number of sensors and actuators of different types and feedback modes cannot accurately and efficiently realize data fusion and resource allocation in the same system. the

Therefore, it is necessary to provide a multi-sensor dynamic data fusion control system to solve the problems existing in the prior art that cannot meet the problems of mass usage and resource allocation of sensors and actuators with different types and feedback modes in the same system. the

Utility model content

The purpose of this utility model is to provide a multi-sensor dynamic data fusion control system to solve the problems existing in the prior art that cannot satisfy the problems of mass use and resource allocation of sensors and actuators with different types and feedback modes in the same system. the

According to one aspect of the present invention, a multi-sensor dynamic data fusion control system is provided, including: management terminal A, facing users, including on-site planning terminal 10, on-site supervision terminal 20 and other department terminals 30, and communicates with nodes through a local area network The master server B is connected; the node master server B is connected with the field control system C through the I ² C bus; and the field control system C is used to collect, process and control data at the job site; the field control system C is further Including: a plurality of analog sensors 100, for inputting analog signals to the input end of the A/D converter 101; A/D converter 101, for converting the analog signals received from the plurality of analog sensors 100 into digital signals; Microcontroller MCU102; D/A converter 103, used for digital-to-analog conversion of the signal output by microcontroller MCU102 as a control signal of multiple terminal effectors 104; and multiple terminal effectors 104, multiple terminals execute The controller 104 is used for performing corresponding control actions based on the control signal output by the D/A converter 103 .

Optionally, the multi-sensor dynamic data fusion control system also includes a wireless communication receiving module 105, which is connected to the input/output interface of the microcontroller MCU102, and is used to receive information from multiple analog sensors and end effectors in a wireless manner. Signal. the

Wherein, the multiple analog sensors 100 are connected to the input terminals of the microcontroller MCU102 through the A/D converter 101 , and the output terminals of the microcontroller MCU102 are connected to the multiple end effectors 104 through the D/A converter 103 . the

Wherein, the node main server B also includes a system initial setting module, a LAN communication module and a display module. the

The multi-sensor dynamic data fusion control system described in the utility model integrates the original discrete industrial sensor control system into a unified industrial control system, which can uniformly process different types of feedback data uploaded in parallel, and It can simultaneously drive multiple different types of end effectors to perform corresponding control actions respectively. the

Therefore, it can effectively solve the current data fusion problem of multi-dimensional sensor signals, and at the same time simplify the upgrade and maintenance of software and hardware equipment in rail transit control systems and industrial control systems, and the cost is relatively low. the

Description of drawings

Fig. 1 has shown the structural diagram of the multi-sensor dynamic data fusion control system of the present invention. the

Detailed ways

In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and not intended to limit the scope of the present invention. In addition, in the following description, descriptions of known structures and technologies are omitted to avoid unnecessarily confusing the concept of the present invention. the

Fig. 1 has shown the structural diagram of the multi-sensor dynamic data fusion control system of the present invention. the

As shown in Figure 1, the multi-sensor dynamic data fusion control system of the present invention adopts a three-layer network architecture, including management terminal A, node master server B and field control system C. Among them, the management terminal A is user-oriented and belongs to the upstream device. Node master server B is an intermediate device. On-site control system C is the equipment that actually collects, processes and controls data at the job site, and belongs to the downstream equipment. the

The management terminal A includes an on-site planning terminal 10, an on-site supervision terminal 20, and other department terminals 30, etc. Management terminal A is connected to node master server B through a LAN. the

Node main server B is connected with field control system C through I ² C bus.

In the system of the present utility model, the main node server B, as the core equipment of adaptive control, is responsible for the execution and management of the dynamic data fusion adaptive algorithm facing the downstream network. The adaptive algorithm is stored in the hard disk of the host computer in the form of C language code. Through the repeated calling and execution of the program, the serial feedback information uploaded to the host computer will be calculated and processed according to different types, so as to obtain the accuracy and control efficiency. Higher control strategy. the

In addition, node master server B is also responsible for providing some necessary software modules (corresponding software or programs on the node master server, with functions such as system control, network connection, system related information display, etc.), such as system initial setting module, LAN communication module , display module, etc., to facilitate the remote query of managers, real-time monitoring and manual intervention. The information of the main node server B is obtained from the microcontroller MCU102 through the I ² C bus, for example, system control information, communication data information, display information, etc. are transmitted from the microcontroller MCU102 to the node server B through the I ² C bus.

The on-site control system C includes a plurality of different types of analog sensors 100 (the numbering sequence is 1, 2, ... n), an A/D converter 101, a microcontroller MCU 102, a D/A converter 103, and a plurality of terminals executing device 104 (the sequence of numbers is 1, 2, . . . n) and a wireless communication receiving module 105. the

The analog sensors 100 (1-n) include a plurality of different types of analog sensors, such as temperature, humidity, pressure and other types of sensors, these sensors are connected to the input end of the microcontroller MCU102 through the A/D converter 101, and the microcontroller The output end of the MCU 102 is connected to a plurality of end effectors 104 (1˜n) through a D/A converter 103 . Another input/output interface of the microcontroller MCU102 is connected with a wireless communication receiving module 105. the

In the system of the present invention, information is transmitted between the upstream management terminal A and the node master server B based on the principles of versatility and compatibility. Specifically, adopt the form of intra-enterprise LAN, and use a certain node computer located in the workshop or control center as the node master server B. Other users in the network, such as on-site planning terminal 10, on-site supervision terminal 20, and other department terminals 30, access node main server B in the form of B/S login users, so as to facilitate off-site query for node main server B and realize real-time Monitoring and remote human intervention. the

On the other hand, in the system of the present invention, the I ² C bus system is used for information transmission between the downstream field control system C and the node main server B. Specifically, the input/output interface of the microcontroller MCU102 is connected to the node master server B through the I ² C bus system.

In the utility model, the I ² C bus adopts two bidirectional transmission lines, including a clock line SCL and a data line SDA, both of which have the line-AND characteristic. The level on SDA is only allowed to transition state when SCL is low.

The microcontroller MCU102 is used for collecting and distributing information between the downstream equipment and the node main server B. Specifically, microcontroller MCU102 includes two main functions. The first function is to collect the feedback signals uploaded by industrial sensors sequentially, and perform unified encoding and parallel-to-serial conversion to meet the requirements of dynamic data fusion adaptive algorithms for multi-dimensional information sources of the system. The second function is to decode and serial-to-parallel convert the secondary control strategy calculated by node master server B, and send it to the corresponding terminal executors respectively. the

In the present utility model, microcontroller MCU102 can adopt multiple chips to realize, for example the AT89C52 chip of ATME1 etc., but the present utility model is not limited thereto. the

The selection of the number of MCU 102 can be flexibly determined according to the number of downstream sensors and actuators. Usually, each MCU 102 can drive 4 to 8 terminal devices. the

The A/D converter 101 is used for analog-to-digital conversion of the analog signal received from the sensor. For example, an ADC0809 with multiple A/D conversion channels can be used as the circuit structure of the processing core. Preferably, analog signal latching can be performed between the A/D converter 101 and the MCU 102 to improve the real-time requirements and stability of the system. the

The D/A converter 103 is used for digital-to-analog conversion of the signal output by the MCU 102 , and the converted analog signal is used as a control signal of a plurality of end effectors 104 . For example, a circuit structure with DAC0832 having multiple D/A conversion channels as the processing core can be adopted. the

In addition, for some industrial sensors whose feedback value is digital signals and actuators of digital control signals, they can be directly connected to the data bus of MCU102 after simple level comparison and driving circuit. the

Multiple end effectors 104 are used to execute corresponding control actions based on the control signals output by the D/A converter 103 . the

The wireless communication receiving module 105 is connected to the input/output interface of the microcontroller MCU102, and is used to receive signals from a plurality of analog sensors and end effectors in a wireless manner. Since some analog sensors and terminal actuators are far away from the MCU102 or the site is more complicated, it is difficult to set up signal transmission lines. transmission. As a high-speed and stable transmission mode, wireless serial communication not only saves port resources, but also improves transmission speed. the

The working process of the multi-sensor dynamic data fusion control system of the present invention is introduced below. the

The analog signals fed back by each analog sensor 100 are read into the RAM of the microcontroller MCU102 after being converted from analog to digital by the A/D converter 101 . In the MCU102, the feedback data is sorted in a matrix based on index tags such as upload time, data type, and sensor node number. The feedback data embedded with information such as time, data type, node number, station number, etc. is encoded and uploaded to the main node server B in sequence through the I ² C bus, and the main node server B performs adaptive processing and upstream LAN calls for viewing. The execution data calculated by the node master server B (including information such as data type, node number, and station number) is sequentially transmitted to the MCU 102 in the form of an I ² C bus, and after digital-to-analog conversion by the D/A converter 103, it is The end effector 104 sequentially reads and executes.

On the other hand, when the distance between the sensor or actuator and the MCU 102 is relatively long, digital information is transmitted through the wireless communication module 105 . The number of MCU 102 used depends on the number and complexity of the system nodes, and generally each MCU 102 can drive 4 to 8 analog sensors or actuators. the

The main feature of the multi-sensor dynamic data fusion control system described in the utility model is that the original discrete industrial sensor control system is integrated into a unified industrial control system, which can unify different types of feedback data uploaded in parallel processing, and can simultaneously drive multiple different types of end effectors to perform corresponding control actions respectively. the

Therefore, it can effectively solve the current data fusion problem of multi-dimensional sensor signals, and also simplify the upgrade and maintenance of software and hardware equipment in rail transit control systems and industrial control systems, and the cost is relatively low. the

It should be understood that the above specific embodiments of the present utility model are only used to illustrate or explain the principle of the present utility model, but not to limit the present utility model. Therefore, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present utility model shall be included in the protection scope of the present utility model. Furthermore, the appended claims are intended to cover all changes and modifications that come within the scope and boundaries of the appended claims, or equivalents of such scope and boundaries. the

Claims (4)

1. a multisensor dynamic data merges control system, comprising:

Office terminal (A), user oriented comprises on-the-spot plan terminal (10), on-the-spot monitor terminal (20) and other departmental terminals (30), and is connected with node master server (B) by LAN (Local Area Network);

Node master server (B), it passes through I ²The C bus is connected with field control system (C); And

Field control system (C) is used for carrying out collection, processing and the control of data at operation field;

Described field control system (C) further comprises:

A plurality of analog sensors (100) are for the input end that simulating signal is input to A/D converter (101);

A/D converter (101) is used for and will becomes digital signal from the analog signal conversion that a plurality of analog sensors (100) receive;

Microcontroller MCU (102);

D/A converter (103) is used for the signal of microcontroller MCU (102) output is carried out digital-to-analog conversion with the control signal as a plurality of end effectors (104); And

A plurality of end effectors (104), a plurality of end effectors (104) are used for carrying out corresponding control action based on the control signal of D/A converter (103) output.

2. control system according to claim 1 also comprises radio communication receiver module (105), is connected to the input/output interface of described microcontroller MCU (102), is used for receiving by wireless mode the signal of a plurality of analog sensors and end effector.

3. control system according to claim 1 and 2, described a plurality of analog sensor (100) is connected with the input end of microcontroller MCU (102) by A/D converter (101), and the output terminal of microcontroller MCU (102) is connected with a plurality of end effectors (104) by D/A converter (103).

4. control system according to claim 1 and 2, wherein, described node master server (B) also comprises system initial setting up module, local area network communications module and display module.

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