CN205176550U - Adopt instrument human -computer interaction system of difference communication connection - Google Patents
Adopt instrument human -computer interaction system of difference communication connection Download PDFInfo
- Publication number
- CN205176550U CN205176550U CN201520915763.9U CN201520915763U CN205176550U CN 205176550 U CN205176550 U CN 205176550U CN 201520915763 U CN201520915763 U CN 201520915763U CN 205176550 U CN205176550 U CN 205176550U
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- China
- Prior art keywords
- instrument
- liquid crystal
- communication
- distributor
- cpu
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Abstract
The utility model discloses an adopt instrument human -computer interaction system of difference communication connection, including operating device, RS485 distributor, liquid crystal management and configuration management CPU, secondary RS485 distributor and an instrument center treater, operating device is connected with liquid crystal management and the communication of configuration management CPU through a RS485 distributor, and liquid crystal management and configuration management CPU are connected with the communication of secondary RS485 distributor, and secondary RS485 distributor and the treater communication of instrument center are connected. Adopt instrument human -computer interaction system of difference communication connection keeps apart high -speed CPU and low -speed CPU through the RS485 distributor for twice isolation between instrument circuit and the operating device, keep apart with the instrument frame, stopped the static and external unknown access voltage hindering and damaging the instrument that lead to by human touch liquid crystal etc..
Description
Technical field
The utility model relates to a kind of man-machine interactive system of instrument, particularly relates to a kind of instrument man-machine interactive system adopting differential communication to connect.
Background technology
In the prior art, electrostatic and external world's the unknown access voltage can cause instrument and hinder and damage.
Utility model content
For above-mentioned shortcoming and defect of the prior art, the purpose of this utility model is to provide a kind of electrostatic and extraneous unknown voltage can avoided instrument to be caused to the instrument man-machine interactive system hindered and damaged.
The purpose of this utility model is achieved through the following technical solutions:
A kind of instrument man-machine interactive system adopting differential communication to connect, comprise controlling equipment, RS485 divider, liquid crystal management and configuration management CPU, secondary RS485 divider and an instrument center processor, described controlling equipment is managed with liquid crystal by RS485 divider and configuration management CPU communication is connected, described liquid crystal management and configuration management CPU are connected with the communication of secondary RS485 divider, and described secondary RS485 divider is connected with the communication of instrument center processor.
Preferably, described instrument center processor is DSP.
Preferably, described controlling equipment is computer or DCS.
Compared with prior art, the utility model embodiment at least has the following advantages:
In the utility model embodiment, the instrument man-machine interactive system adopting differential communication to connect keeps apart high-speed CPU (i.e. the center processor DSP of instrument) and low speed CPU (and liquid crystal manages and configuration management CPU) by RS485 divider, avoid the communication caused due to reaction velocity difference between high-speed CPU and low speed CPU to wait for, improve the reaction velocity of system.Simultaneously by two RS485 dividers keep apart controlling equipment and liquid crystal management and configuration management CPU, liquid crystal management and configuration management CPU and DSP, make twice isolation between appliance circuit and controlling equipment, and with instrument lframe cross piece from, stopped access voltage the hindering and damaging instrument of electrostatic and the external world's the unknown caused by human body touch liquid crystal etc.
Accompanying drawing explanation
Fig. 1 is the structural representation of the instrument man-machine interactive system that the utility model adopts differential communication to connect.
Embodiment
Below in conjunction with embodiment and Fig. 1 thereof, the utility model is described in further detail, and following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
A kind of instrument man-machine interactive system adopting differential communication to connect, comprise controlling equipment, RS485 divider, liquid crystal management and configuration management CPU, secondary RS485 divider and an instrument center processor, described controlling equipment is managed with liquid crystal by RS485 divider and configuration management CPU communication is connected, described liquid crystal management and configuration management CPU are connected with the communication of secondary RS485 divider, and described secondary RS485 divider is connected with the communication of instrument center processor.
Described instrument center processor is DSP.
Described controlling equipment is computer or DCS.
The instrument man-machine interactive system adopting differential communication to connect keeps apart high-speed CPU (i.e. the center processor DSP of instrument) and low speed CPU (and liquid crystal manages and configuration management CPU) by RS485 divider, avoid the communication caused due to reaction velocity difference between high-speed CPU and low speed CPU to wait for, improve the reaction velocity of system.Simultaneously by two RS485 dividers keep apart controlling equipment and liquid crystal management and configuration management CPU, liquid crystal management and configuration management CPU and DSP, make twice isolation between appliance circuit and controlling equipment, and with instrument lframe cross piece from, stopped access voltage the hindering and damaging instrument of electrostatic and the external world's the unknown caused by human body touch liquid crystal etc.
The above; be only the utility model preferably embodiment; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (3)
1. the instrument man-machine interactive system adopting differential communication to connect, it is characterized in that, comprise controlling equipment, RS485 divider, liquid crystal management and configuration management CPU, secondary RS485 divider and an instrument center processor, described controlling equipment is managed with liquid crystal by RS485 divider and configuration management CPU communication is connected, described liquid crystal management and configuration management CPU are connected with the communication of secondary RS485 divider, and described secondary RS485 divider is connected with the communication of instrument center processor.
2. the instrument man-machine interactive system of employing differential communication connection according to claim 1, it is characterized in that, described instrument center processor is DSP.
3. the instrument man-machine interactive system of employing differential communication connection according to claim 1, it is characterized in that, described controlling equipment is computer or DCS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520915763.9U CN205176550U (en) | 2015-11-17 | 2015-11-17 | Adopt instrument human -computer interaction system of difference communication connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520915763.9U CN205176550U (en) | 2015-11-17 | 2015-11-17 | Adopt instrument human -computer interaction system of difference communication connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205176550U true CN205176550U (en) | 2016-04-20 |
Family
ID=55740524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520915763.9U Expired - Fee Related CN205176550U (en) | 2015-11-17 | 2015-11-17 | Adopt instrument human -computer interaction system of difference communication connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205176550U (en) |
-
2015
- 2015-11-17 CN CN201520915763.9U patent/CN205176550U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160420 Termination date: 20191117 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |