CN209784805U - Serial port data isolation protection device for industrial control safety - Google Patents
Serial port data isolation protection device for industrial control safety Download PDFInfo
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- CN209784805U CN209784805U CN201920990583.5U CN201920990583U CN209784805U CN 209784805 U CN209784805 U CN 209784805U CN 201920990583 U CN201920990583 U CN 201920990583U CN 209784805 U CN209784805 U CN 209784805U
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Abstract
A serial port data isolation protection device for industrial control safety comprises a main control chip, wherein a power isolation module and a communication isolation module are connected to the main control chip, the power isolation module is used for electrically isolating a power supply and signal transmission of the main control chip, and the communication isolation module is used for isolating transmission data of an internal network and an external network which transmit the data; the main control chip is connected with a parameter configuration module and a data output module, the parameter configuration module is used for combining an upper computer and a serial port configuration permission protocol, and the data output module is used for outputting irrelevant or wrong data according to the configured protocol; the main control chip is also provided with a communication processing module which is used for establishing a channel for data transparent transmission; screening and transmitting the unnecessary data through a data output module according to a license agreement; the communication processing module is used for establishing a data transparent transmission channel to transmit data, and the data transmission system has the advantages of safety, reality and effectiveness in data transmission.
Description
The technical field is as follows:
The utility model relates to a serial ports data isolation protector is used to industry control safety.
Background art:
Power plants, also known as power plants, are plants that convert various primary energy sources contained in nature into electrical energy. At the end of the 19 th century, with the growing demand for electricity, the idea of building electricity production centers began to be proposed. The development of motor manufacturing technology, the expansion of electric energy application range, the rapid increase of the demand of electricity for production and the consequent generation of power plants.
The existing power plant has a plurality of power generation ways: thermal power plants, which rely on thermal power, hydroelectric power plants, which rely on hydraulic power, and new power plants, which rely on solar energy, wind, tidal power, and nuclear fuel to generate electricity.
Because the power plant is used as a power center of a city, the quantity of data interacted in the power plant is huge, so that some irrelevant data or error data can be inevitably generated and transmitted in the process of data transmission; the existing data transparent transmission isolation device usually adopts a special transmission channel for data interaction, is a physical isolation mode, has poor isolation effect and cannot isolate unnecessary data fundamentally.
The utility model has the following contents:
The embodiment of the utility model provides an industrial control is serial ports data isolation protector for safety, structural design is reasonable, adopts photoelectric isolation and two kinds of isolation modes of physics isolation, can freely set up the configuration rule of data and sieve out data according to user's demand, and fundamentally realizes passing through of data, and the operation degree of freedom is high, and the practicality is strong, has solved the problem that exists among the prior art.
The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be:
A serial port data isolation protection device for industrial control safety comprises a main control chip, wherein a power isolation module and a communication isolation module are connected to the main control chip, the power isolation module is used for electrically isolating a power supply and signal transmission of the main control chip, and the communication isolation module is used for isolating transmission data of an internal network and an external network which transmit the data; the main control chip is connected with a parameter configuration module and a data output module, the parameter configuration module is used for combining an upper computer and a serial port configuration permission protocol, and the data output module is used for outputting irrelevant or wrong data according to the configured protocol; the main control chip is also provided with a communication processing module which is used for establishing a channel for data transmission.
The main control chip is connected with a voltage stabilizing module and a state indicating module through wires, the voltage stabilizing module is used for providing a stable power supply for the main control chip, and the state indicating module is used for displaying the real-time state of equipment operation and data transmission.
The power isolation module is an isolated DC/DC power supply or magnetic isolation ADUM1201 of ADI company.
The communication isolation module comprises an optical fiber transmission module or an electric signal transmission module.
The optical fiber transmission module is a single mode optical fiber, and the electric signal transmission module adopts TTL level or RS232 level.
The parameter configuration module is DATA-8203, and comprises a preset module and an execution module which are electrically connected, wherein the preset module is used for setting a DATA permission protocol, and the execution module is used for setting corresponding parameters according to the permission protocol.
The data output module is MO73S, the data output module includes screening module and transmission module that the electricity links to each other, the screening module is used for choosing irrelevant data according to the license agreement, the transmission module is used for passing through the serial ports with the irrelevant data of choosing and transmitting.
The communication processing module is an RS232 communication processing module or an RS485 communication processing module.
The voltage stabilizing module is LM7312, and the state indicating module is an LED indicating lamp.
The model of the main control chip is STM32F 103.
The utility model adopts the above structure, realizes power isolation and data isolation through the power isolation module and the communication isolation module, and cuts off the data series connection and the electrical connection of the internal and external networks, thereby ensuring the safety of data transmission; a parameter configuration module is matched with an upper computer and a serial port, and a strict fixed communication format or an exclusive rule or other rule formats are set; screening and transmitting the unnecessary data through a data output module according to a license agreement; the communication processing module is used for establishing a data transparent transmission channel to transmit data, and the data transmission system has the advantages of safety, reality and effectiveness in data transmission.
description of the drawings:
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the parameter configuration module of the present invention.
Fig. 3 is a schematic structural diagram of the data output module of the present invention.
The specific implementation mode is as follows:
In order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments in combination with the accompanying drawings.
As shown in fig. 1 to 3, a serial port data isolation protection device for industrial control safety comprises a main control chip, wherein a power isolation module and a communication isolation module are connected to the main control chip, the power isolation module is used for electrically isolating a power supply and signal transmission of the main control chip, and the communication isolation module is used for isolating data transmission of an internal network and an external network which transmit data; the main control chip is connected with a parameter configuration module and a data output module, the parameter configuration module is used for combining an upper computer and a serial port configuration permission protocol, and the data output module is used for outputting irrelevant or wrong data according to the configured protocol; the main control chip is also provided with a communication processing module which is used for establishing a channel for data transmission.
the main control chip is connected with a voltage stabilizing module and a state indicating module through wires, the voltage stabilizing module is used for providing a stable power supply for the main control chip, and the state indicating module is used for displaying the real-time state of equipment operation and data transmission.
The power isolation module is an isolated DC/DC power supply or magnetic isolation ADUM1201 of ADI company.
The communication isolation module comprises an optical fiber transmission module or an electric signal transmission module.
The optical fiber transmission module is a single mode optical fiber, and the electric signal transmission module adopts TTL level or RS232 level.
The parameter configuration module is DATA-8203, and comprises a preset module and an execution module which are electrically connected, wherein the preset module is used for setting a DATA permission protocol, and the execution module is used for setting corresponding parameters according to the permission protocol.
The data output module is MO73S, the data output module includes screening module and transmission module that the electricity links to each other, the screening module is used for choosing irrelevant data according to the license agreement, the transmission module is used for passing through the serial ports with the irrelevant data of choosing and transmitting.
The communication processing module is an RS232 communication processing module or an RS485 communication processing module.
The voltage stabilizing module is LM7312, and the state indicating module is an LED indicating lamp.
The model of the main control chip is STM32F 103.
When the device is used, the main control chip supplies power through the voltage stabilizing module, and the data transparent transmission isolating device enters a working state; firstly, a permission protocol or a strict fixed communication format or an exclusive rule or other rule formats of data transparent transmission are set by a parameter configuration module in combination with an upper computer and an interface, so that irrelevant data or error data can be screened out, a preset module on the parameter configuration module sets a data permission protocol, and an execution module sets corresponding parameters according to the set data permission protocol; after the data permission agreement is set, the data output module enters a working state, the screening module selects irrelevant data based on the data permission agreement and summarizes and arranges all the selected data, and the transmission module transmits the selected data, so that a user can conveniently analyze the data; the parameter configuration module and the data output module are electrically connected to the main control chip and are uniformly controlled by the main control chip, so that the operation is simple and convenient, and the precision is high; the main control chip is also connected with a power isolation module and a communication isolation module, and the serial connection and the electrical connection of the internal and external network data are isolated by adopting a mode of combining photoelectric isolation and physical isolation, so that the safe isolated transmission of serial port data is realized, and the safety of data transmission is ensured; the communication processing module connected to the main control chip is an RS-232 communication processing module or an RS-485 communication processing module, a stable and rapid data transparent transmission channel can be established, and normal transmission of data is guaranteed; the state indicating module can display the working state of the transparent transmission device in real time, and the working state of the transparent transmission device is obtained through the change condition of the LED indicating lamp, so that the transparent transmission device is safe and practical; and a one-way communication transmission mode is adopted in the process of data transparent transmission, so that data reverse write-back is avoided, and data safety is guaranteed.
The above-mentioned specific embodiments can not be regarded as the restriction to the scope of protection of the utility model, to technical personnel in this technical field, it is right the utility model discloses any replacement improvement or transform that embodiment made all fall within the scope of protection of the utility model.
The parts of the present invention not described in detail are the known techniques of those skilled in the art.
Claims (10)
1. the utility model provides a serial ports data isolation protector for industrial control safety which characterized in that: the system comprises a main control chip, wherein a power isolation module and a communication isolation module are connected to the main control chip, the power isolation module is used for electrically isolating a power supply and signal transmission of the main control chip, and the communication isolation module is used for isolating transmission data of an internal network and an external network which transmit the data; the main control chip is connected with a parameter configuration module and a data output module, the parameter configuration module is used for combining an upper computer and a serial port configuration permission protocol, and the data output module is used for outputting irrelevant or wrong data according to the configured protocol; the main control chip is also provided with a communication processing module which is used for establishing a channel for data transmission.
2. The apparatus of claim 1, wherein: the main control chip is connected with a voltage stabilizing module and a state indicating module through wires, the voltage stabilizing module is used for providing a stable power supply for the main control chip, and the state indicating module is used for displaying the real-time state of equipment operation and data transmission.
3. The apparatus of claim 1, wherein: the power isolation module is an isolated DC/DC power supply or magnetic isolation ADUM1201 of ADI company.
4. The apparatus of claim 1, wherein: the communication isolation module comprises an optical fiber transmission module or an electric signal transmission module.
5. The apparatus of claim 4, wherein: the optical fiber transmission module is a single mode optical fiber, and the electric signal transmission module adopts TTL level or RS232 level.
6. the apparatus of claim 1, wherein: the parameter configuration module is DATA-8203, and comprises a preset module and an execution module which are electrically connected, wherein the preset module is used for setting a DATA permission protocol, and the execution module is used for setting corresponding parameters according to the permission protocol.
7. The apparatus of claim 1, wherein: the data output module is MO73S, the data output module includes screening module and transmission module that the electricity links to each other, the screening module is used for choosing irrelevant data according to the license agreement, the transmission module is used for passing through the serial ports with the irrelevant data of choosing and transmitting.
8. The apparatus of claim 1, wherein: the communication processing module is an RS232 communication processing module or an RS485 communication processing module.
9. the apparatus of claim 2, wherein: the voltage stabilizing module is LM7312, and the state indicating module is an LED indicating lamp.
10. The apparatus of claim 1, wherein: the model of the main control chip is STM32F 103.
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| CN201920990583.5U CN209784805U (en) | 2019-06-27 | 2019-06-27 | Serial port data isolation protection device for industrial control safety |
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| CN201920990583.5U CN209784805U (en) | 2019-06-27 | 2019-06-27 | Serial port data isolation protection device for industrial control safety |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110187661A (en) * | 2019-06-27 | 2019-08-30 | 山东和信智能科技有限公司 | Serial data isolation protecting device is used safely in a kind of industry control |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110187661A (en) * | 2019-06-27 | 2019-08-30 | 山东和信智能科技有限公司 | Serial data isolation protecting device is used safely in a kind of industry control |
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