CN210199567U

CN210199567U - Field device management system

Info

Publication number: CN210199567U
Application number: CN201821705666.7U
Authority: CN
Inventors: Hongyi Huang; 黄弘毅; Ting Gu; 顾廷
Original assignee: Shimadzu Corp
Current assignee: Shimadzu Corp
Priority date: 2018-10-19
Filing date: 2018-10-19
Publication date: 2020-03-27
Anticipated expiration: 2028-10-19
Also published as: JP3224053U

Abstract

The utility model provides a long-range field device's monitoring or field device management system of control that carries out field device. The field device management system includes: one or more field devices (1); an input/output unit (2) which is connected to the field device in a communication manner; a field monitoring unit (3) which is connected in communication with the field device via the input/output unit; and a remote monitoring unit (5) communicatively connected to the on-site monitoring unit via a communication line (4). According to the utility model discloses a field device management system can realize that after sale engineers do not go the scene also can look over equipment data, confirm the equipment state to carry out field device's correction and quality control at any time according to the equipment state. When a problem occurs, fault diagnosis can be remotely carried out, field workers are guided to carry out maintenance, and labor cost is reduced.

Description

Field device management system

Technical Field

The utility model relates to a field device management system.

Background

As an example of a technique for monitoring or controlling the state of a field device, it is generally necessary to provide a field monitoring unit that is connected to the field device via an input-output unit. If remote monitoring or control of the state of the field device is required, a remote monitoring unit is required to be connected to the field device via the input-output unit via a communication line.

SUMMERY OF THE UTILITY MODEL

Problem to be solved by utility model

However, the conventional technique has the following problems:

(1) if the data needs to be remotely checked, the data needs to be uploaded to a data acquisition instrument through a MODBUS protocol and then uploaded through a GSM (global system for mobile communications) or uploaded through a DCS (distributed control system) through a simulation direct current signal for checking. If the historical data needs to be remotely checked, the uploaded data needs to be stored.

(2) If remote correction and quality control are needed, remote contact input is needed through DCS, and the device automatically corrects after receiving contact signals. Therefore, real-time correction and quality control according to the state of the equipment cannot be performed.

(3) If the state of the equipment needs to be remotely checked, the state quantity defined in advance needs to be output through a MODBUS protocol. If a field device needing to check the state is added, the input and the output of a contact point are required to be increased, the corresponding firmware is required to be modified, and the expansibility is poor.

(4) In the process of repairing or fault diagnosis, an engineer is required to be carried out on site, and in the case that the situation can not be solved, a manufacturer engineer or a specialist is required to go to the site.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a field device management system that remotely monitors or controls a field device.

Means for solving the problems

The utility model discloses a field device management system, include: one or more field devices; an input-output unit communicatively coupled to the field device; a field monitoring unit communicatively coupled to the field device via the input-output unit; and a remote monitoring unit that is communicatively connected to the on-site monitoring unit via a communication line, the on-site monitoring unit having: a first receiving and transmitting unit; the first receiving and sending unit is respectively in communication connection with the field device and the remote monitoring unit and transmits data and instructions to the field device and the remote monitoring unit; the first control processing unit receives the instruction from the remote monitoring unit through the first receiving and sending unit and processes the data from the field device; a first display unit displaying a picture related to data from the field device; and the remote monitoring unit has: a second receiving and transmitting unit; the second receiving and sending unit is connected with the on-site monitoring unit and transmits data and instructions with the on-site monitoring unit; the second control processing unit sends an instruction to the on-site monitoring unit through the second receiving and sending unit according to user operation; the second display unit displays a picture corresponding to the picture displayed by the first display unit.

Effect of the utility model

According to the utility model discloses a field device management system can realize that after sale engineers do not go the scene also can look over equipment data, confirm the equipment state to carry out field device's correction and quality control at any time according to the equipment state. When a problem occurs, fault diagnosis can be remotely carried out, field workers are guided to carry out maintenance, and labor cost is reduced.

Drawings

Fig. 1 schematically shows a system configuration of a field device management system according to the present invention.

Fig. 2 schematically shows the configuration of the on-site monitoring unit and the remote monitoring unit according to the present invention.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings. However, the embodiments described below are merely examples, and are not intended to exclude the application of various modifications and techniques not explicitly described below. That is, the present invention can be implemented by being variously modified within a range not departing from the gist thereof.

The field device management system includes one or more field devices 1, an input/output (IO) unit 2, a field monitoring unit 3, a remote monitoring unit 5, and the like.

As an example of the field device 1, a valve device such as a flow control valve or a pressure control valve may be used. The IO unit 2 is connected to the field device 1. The field monitoring unit 3 can be connected in communication with the field device 1 via the IO unit 2.

For example, the field device 1 can transmit an analog dc signal of a current value (4 to 20mA) corresponding to the measured value to the field monitoring unit 3 through the IO unit 2, and can receive an analog dc signal of a current value (4 to 20mA) corresponding to a set value, a control value, or the like transmitted from the field monitoring unit 3 through the IO unit 2. The field device 1 can transmit the switching amount signal to the field monitoring unit 3 through the IO unit 2, and can receive the switching amount signal transmitted from the field monitoring unit 3 through the IO unit 2.

An analog dc signal is one example of a signal representing a variable corresponding to field device 1. As examples of the variables, measured values of flow rate, pressure, temperature, and the like obtained from the field device 1, control values of valve opening degree of a pump, a valve, and the like are illustrated. The switching value signal, i.e., the digital signal, can be used to diagnose the state of the field device 1.

Therefore, various data obtained from the field device 1 can be viewed by the field monitoring unit 3, and status information (e.g., failure information, etc.) of the field device 1 can be viewed. Calibration and quality control of the field device 1 can also be carried out with the field monitoring unit 3.

The remote monitoring unit 5 is connected to the on-site monitoring unit 3 via the communication line 4. An example of the communication line 4 is an ethernet (registered trademark) communication line 4 (cable) by way of example. Thus, the remote monitoring unit 5 is able to communicate with the on-site monitoring unit 3.

Fig. 2 schematically shows the configuration of the site monitoring unit 3 and the remote monitoring unit 5 according to the present invention.

As shown in fig. 2, the on-site monitoring unit 3 includes: a first receiving and transmitting unit 31; a first display unit 33 and a first control processing unit 32. The first transmitting/receiving unit 31 is connected to the field device 1 and the remote monitoring unit 5 in communication, and transmits data and commands to the field device 1 and the remote monitoring unit 5. The first control processing unit 32 receives an instruction from the remote monitoring unit 5 through the first receiving and transmitting unit 31, and processes data from the field device 1; the first display unit 33 displays a screen related to data from the field device 1.

The remote monitoring unit 5 has: a second receiving/transmitting unit 51; a second display unit 53 and a second control processing unit 52, the second receiving and transmitting unit 51 being connected to the site monitoring unit 3 and transmitting data and commands to the site monitoring unit 3; the second control processing unit 52 sends an instruction to the on-site monitoring unit 3 through the second receiving and sending unit 51 according to the user operation; the second display unit 53 displays a screen corresponding to the screen displayed by the first display unit 33.

Next, the operation of the remote monitoring unit 5 on the site monitoring unit 3 will be specifically described.

(1) Browsing measured data

The field monitoring unit 3 can receive the real-time data from the field device 1 via the first transmitting/receiving unit 31, and can store the previous real-time data as history data in a storage device (not shown). The on-site monitoring unit 3 displays real-time data and history data according to an instruction of the second control processing unit 52 and transmits data of a display screen to the remote monitoring unit 5, and the second display unit 53 displays a screen corresponding to the screen displayed by the first display unit 33. Thus, the user can view real-time data of the field device 1 at any time and also view historical data of the field device 1 through the second display unit 53 of the remote monitoring unit 5.

(2) Performing calibration and quality control operations

The second control processing unit 52 issues a modification instruction of data from the field device 1 to the field monitoring unit 3 through the second receiving and transmitting unit 51 according to a user operation, thereby enabling correction and quality control of the field device 1 to be performed remotely at any time according to the operating state of the field device 1.

(3) Viewing device status

The real-time data from field device 1 may be data (analog dc signals) representing measurements of field device 1. Or may be data (switching value signal) indicating the state of field device 1. The user can view status information of the field device 1 at any time through the second display unit 53 of the remote monitoring unit 5. In addition, when the field device 1 whose status needs to be checked is added, the status can be checked directly through the second display unit 53 of the remote monitoring unit 5 without adding a contact input/output and modifying corresponding firmware.

(4) Maintenance and fault diagnosis

The remote monitoring unit 5 can perform fault diagnosis by viewing the status information of the field device 1 through the second display unit 53 at any time. Further, the engineer on the remote monitoring unit 5 side often has a higher access authority than the field engineer and can access internal data that cannot be accessed by the field engineer, and therefore, maintenance of the equipment can be performed remotely without the field engineer.

Claims

1. A field device management system, comprising:

one or more field devices;

an input-output unit communicatively coupled to the field device;

a field monitoring unit communicatively coupled to the field device via the input-output unit; and

a remote monitoring unit communicatively coupled to the on-site monitoring unit via a communication line,

the on-site monitoring unit has: a first receiving and transmitting unit; the first receiving and sending unit is respectively in communication connection with the field device and the remote monitoring unit and transmits data and instructions to the field device and the remote monitoring unit; the first control processing unit is used for receiving an instruction from the remote monitoring unit through the first receiving and sending unit and processing data from the field device; a first display unit displaying a screen corresponding to data from the field device; and

the remote monitoring unit has: a second receiving and transmitting unit; the second receiving and sending unit is connected with the on-site monitoring unit and transmits data and instructions with the on-site monitoring unit; the second control processing unit is used for sending an instruction to the on-site monitoring unit through the second receiving and sending unit according to user operation; the second display unit displays a picture corresponding to the picture displayed by the first display unit.

2. The field device management system of claim 1,

the first receiving and transmitting unit receives real-time data from the field device, the field monitoring unit has a storage unit that stores previous real-time data as history data,

the on-site monitoring unit displays real-time data and historical data according to the instruction of the second control processing unit, transmits data of a display picture to the remote monitoring unit, and the second display unit displays a picture corresponding to the picture displayed by the first display unit.

3. The field device management system of claim 1,

and the second control processing unit sends a modification instruction of the data from the field device to the field monitoring unit through the second receiving and sending unit according to the user operation.

4. The field device management system of claim 1,

the data from the field device is data representing measurements of the field device.

5. The field device management system of claim 1,

the data from the field device is data representing a state of the field device.