CN109839843A - CAN bus based on-site test instrument - Google Patents
CAN bus based on-site test instrument Download PDFInfo
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- CN109839843A CN109839843A CN201711191229.8A CN201711191229A CN109839843A CN 109839843 A CN109839843 A CN 109839843A CN 201711191229 A CN201711191229 A CN 201711191229A CN 109839843 A CN109839843 A CN 109839843A
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- chip microcontroller
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- test instrument
- site test
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Abstract
The present invention relates to a kind of detection instrument, and in particular to a kind of CAN bus based on-site test instrument；Including single-chip microcontroller, temperature sensor, pH sensor, salinity sensor, turbidity transducer, keyboard, LCD, solenoid valve and aerator, temperature sensor, pH sensor, salinity sensor, turbidity transducer output end connect with single-chip microcontroller, the output end of institute's keyboard is connect with single-chip microcontroller, and the output end of single-chip microcontroller is connect with LCD, solenoid valve and aerator；It using the CAN bus based on-site test instrument of technical solution of the present invention, realizes the precise measurement of water environment many kinds of parameters and realizes CAN networking, realize the information exchange between CAN bus field network and Ethernet.
Description
Technical field
The present invention relates to a kind of detection instrument, and in particular to a kind of CAN bus based on-site test instrument.
Background technique
Currently, on-site test instrument is mainly that single instrument is worked independently and directly controlled, operation and maintenance cost all compared with
It is high.Moreover, communication interface mainly uses simple serial communication interface, pass through RS-232 or RS-485 and customized communication
Protocol mode communicate with monitoring computer or other equipment and remotely be managed.These communication mode limitations are big, ineffective
It lives, be not easy to extend, it is difficult to adapt to the requirement of industrial production fast development.With the appearance of fieldbus, these problems can be with
It solves.CAN, that is, controller LAN is a kind of serial communication bus of multiple host pattern, since it uses unique design, with one
As communication bus compare, have reliability outstanding, real-time and flexibility, occupy importantly in industrial control field
Position.CAN bus network is dispersed in production scene for multiple, and the intelligence instrument with CAN communication interface is used as network node
The CAN protocol of specification, these intelligence instruments, which are connected into, can interact information, common to complete to detect and control task
CAN network system.By establishing based on detection instrument, CAN bus, the detection of Ethernet and distance transmission system, allow instrument with
Information network real time communication, unites industrial control network and information network.
Summary of the invention
The purpose of the present invention is to provide a kind of CAN bus based on-site test instrument, realize a variety of ginsengs of water environment
Several precise measurements simultaneously realizes CAN networking, realizes the information exchange between CAN bus field network and Ethernet.
To achieve the goals above, the present invention provides a kind of CAN bus based on-site test instrument, including single-chip microcontroller,
Temperature sensor, pH sensor, salinity sensor, turbidity transducer, keyboard, LCD, solenoid valve and aerator, the temperature pass
Sensor, pH sensor, salinity sensor, turbidity transducer output end connect with the single-chip microcontroller, the output end of institute's keyboard with
The single-chip microcontroller connection, the output end of the single-chip microcontroller are connect with the LCD, solenoid valve and aerator.
Preferably, the single-chip microcontroller uses C8051F040.
There are following advantages for CAN bus based on-site test instrument by adopting the above technical scheme: system is in practical survey
Stable and reliable operation in examination, by the analysis to operation result and performance it is found that by Industrial Ethernet and CAN bus technology and intelligence
Energy instrument combines, and the various information that Meter Test obtains are passed to monitoring room, certain special or dangerous nothing may be implemented
The monitoring of people's occasion on duty.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Specific embodiment
Further explanation of the technical solution of the present invention with reference to the accompanying drawings and examples:
As shown in Figure 1, the present invention provides a kind of CAN bus based on-site test instrument, including single-chip microcontroller, temperature sensing
Device, pH sensor, salinity sensor, turbidity transducer, keyboard, LCD, solenoid valve and aerator, temperature sensor, pH sensing
Device, salinity sensor, turbidity transducer output end connect with single-chip microcontroller, the output end of institute's keyboard is connect with single-chip microcontroller, monolithic
The output end of machine is connect with LCD, solenoid valve and aerator.
Single-chip microcontroller uses C8051F040.
The design object of system is to realize to supervise on-site test instrument in real time based on embedded type C AN-Ethemet gateway
Control, this is related to CAN bus, Ethernet, TCWIP protocol stack, Web server etc..Using 8/16 single-chip microcontroller as core, extension with
Too network interface extends CAN interface, back-fore ground system is used on software, and multiple tasks module works in a big circulation
In；In the design, Ethernet chip is a kind of highly integrated Ethernet chip using RTLS019AS.RTL8019AS,
It can simply realize the characteristics such as PlugandHay and compatible NE2000, power down.Most common CAN controller is in industrial application
SJA1000, the CAN controller that system uses microprocessor LPC2292 to be internally integrated, can make full use of processor in this way
Internal resource improves the reliability of system in the case where not increasing hardware cost, while reducing system overall cost again, and
Compared with SJAl000, the CAN controller that LPC2292 is internally integrated has more advanced reception to check and accept filtering function.
System stable and reliable operation in actual test, by the analysis to operation result and performance it is found that by industry with
Too net and CAN bus technology combines with intelligence instrument, and the various information that Meter Test obtains are passed to monitoring room, Ke Yishi
The monitoring of existing certain special or dangerous unattended occasion.
The above are merely the preferred embodiment of the present invention, it is noted that for those skilled in the art, not
Under the premise of being detached from structure of the invention, several modifications and improvements can also be made, these also should be considered as protection model of the invention
It encloses, these all will not influence the effect and patent practicability that the present invention is implemented.
Claims (2)
1. CAN bus based on-site test instrument, it is characterised in that: including single-chip microcontroller, temperature sensor, pH sensor, salt
Spend sensor, turbidity transducer, keyboard, LCD, solenoid valve and aerator, the temperature sensor, pH sensor, salinity sensing
Device, turbidity transducer output end connect with the single-chip microcontroller, the output end of institute's keyboard is connect with the single-chip microcontroller, the monolithic
The output end of machine is connect with the LCD, solenoid valve and aerator.
2. CAN bus based on-site test instrument according to claim 1, it is characterised in that: the single-chip microcontroller uses
C8051F040。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711191229.8A CN109839843A (en) | 2017-11-24 | 2017-11-24 | CAN bus based on-site test instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711191229.8A CN109839843A (en) | 2017-11-24 | 2017-11-24 | CAN bus based on-site test instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109839843A true CN109839843A (en) | 2019-06-04 |
Family
ID=66876174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711191229.8A Withdrawn CN109839843A (en) | 2017-11-24 | 2017-11-24 | CAN bus based on-site test instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109839843A (en) |
-
2017
- 2017-11-24 CN CN201711191229.8A patent/CN109839843A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190604 |
|
| WW01 | Invention patent application withdrawn after publication |