CN203132626U - Wireless communication flowmeter - Google Patents
Wireless communication flowmeter Download PDFInfo
- Publication number
- CN203132626U CN203132626U CN 201320120712 CN201320120712U CN203132626U CN 203132626 U CN203132626 U CN 203132626U CN 201320120712 CN201320120712 CN 201320120712 CN 201320120712 U CN201320120712 U CN 201320120712U CN 203132626 U CN203132626 U CN 203132626U
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- CN
- China
- Prior art keywords
- flowmeter
- wireless communication
- processing circuit
- digital processing
- wireless
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to flowmeters, in particular to a wireless communication flowmeter. The wireless communication flowmeter comprises flowmeter header shell (1). A digital processing circuit board (2) and wireless communication modules (3) are disposed in the flowmeter header shell (1). A radio frequency antenna (4) is disposed on the outer surface of the flowmeter header shell (1), connected with the wireless communication modules (3) through a cable and used for transmitting or receiving wireless signals and information transmitting between PLC (programmable logic controller) control cabinets. The digital processing circuit board (2) is provided with an RS485 serial port. The wireless communication modules (3) are connected with the digital processing circuit board (2) through the RS485 serial port. The wireless communication flowmeter is simple in structure, convenient in construction, highly practical and reliable in performance, RS485 close wireless communication is utilized, the wireless communication modules operate independently and do not affect one another, no complex wired communication lines needs to be laid, and signal interference caused by the fact that communication lines are close to a strong power supply can be avoided.
Description
Technical field
The utility model relates to flowmeter, is a kind of flowmeter of wireless telecommunications specifically.Especially refer to adopt the flowmeter of RS485 technology close range wireless communication.
Background technology
The flowmeter of each test satellite location of oil field, instrument cubicle all adopts wired mode to carry out data communication at present, and it is very difficult to lay a large amount of communication cables, long construction period, and contact is many again in addition, easily stays communication hidden danger, and executive cost and maintenance cost expense height.
In field, digital oil field, adopt wired RS485 serial communication in a large number, because the on-the-spot environment more complicated of using, the interference that makes the weak electric signal line avoid the forceful electric power cable has certain difficulty.
A plurality of flowmeters are connected on same the communication cable, if the communicating circuit short circuit of one of them flowmeter damages, will cause the communication of whole piece communication cable to break down, and make stability, the reliability of communication signal be subjected to very big influence.
The utility model content
At the defective that exists in the prior art, the purpose of this utility model is to provide a kind of flowmeter of wireless telecommunications, simple in structure, adopt RS485 close range wireless communication mode, each wireless communication module works alone, be independent of each other, need not lay numerous and diverse wire communication circuit, easy construction has avoided communication line to cause signal interference problem near the forceful electric power source, practical, dependable performance.
For reaching above purpose, the technical scheme that the utility model is taked is:
A kind of flowmeter of wireless telecommunications comprises flowmeter gauge outfit housing 1, it is characterized in that: be provided with digital processing circuit plate 2 and wireless communication module 3 in flowmeter gauge outfit housing 1 inside,
The outside surface of flowmeter gauge outfit housing 1 is provided with radio-frequency antenna 4, and radio-frequency antenna 4 is connected with wireless communication module 3 by cable, and radio-frequency antenna 4 is used for emission or receives transmission information between wireless signal and PLC switch board,
Digital processing circuit plate 2 is provided with RS485 communication serial ports, and wireless communication module 3 links to each other with digital processing circuit 2 plates by RS485 communication serial ports.
On the basis of technique scheme, the model of described wireless communication module 3 is BL100A.
On the basis of technique scheme, the power lead of wireless communication module 3, ground wire are connected with 5V power lead, the ground wire of digital processing circuit plate 2 respectively.
The flowmeter of wireless telecommunications described in the utility model, simple in structure, adopt RS485 close range wireless communication mode, each wireless communication module works alone, and is independent of each other, and need not lay numerous and diverse wire communication circuit, easy construction, avoided communication line to cause signal interference problem near the forceful electric power source, practical, dependable performance.
Description of drawings
The utility model has following accompanying drawing:
The structural representation of the flowmeter of Fig. 1 wireless telecommunications.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
As shown in Figure 1, the flowmeter of wireless telecommunications described in the utility model comprises:
Flowmeter gauge outfit housing 1, its inside are provided with digital processing circuit plate 2 and wireless communication module 3,
The outside surface of flowmeter gauge outfit housing 1 is provided with radio-frequency antenna 4, and radio-frequency antenna 4 is connected with wireless communication module 3 by cable, and radio-frequency antenna 4 is used for emission or receives transmission information between wireless signal and PLC switch board,
Digital processing circuit plate 2 is provided with RS485 communication serial ports, and wireless communication module 3 links to each other with digital processing circuit 2 plates by RS485 communication serial ports.
On the basis of technique scheme, the model of described wireless communication module 3 is BL100A.
On the basis of technique scheme, the power lead of wireless communication module 3, ground wire are connected with 5V power lead, the ground wire of digital processing circuit plate 2 respectively.That is: digital processing circuit plate 2 provides power supply to wireless communication module 3.Wireless communication module 3 also can be designed to independent powering mode.
Principle of work of the present utility model: according to the MODBUS standard, PLC (main frame) and each flowmeter (slave) all are in accepting state at ordinary times, when PLC need read the data of certain instrument, PLC sends " reading " instruction through wireless module, the numbering (address) that includes the target flow meter in this instruction, each flowmeter all received this " read " instruction, but that flowmeter that has only " address " to conform to can be made reflection, data are sent through wireless module, all the other flowmeters are because of mail returned on ground of incorrect address, still be in " reception " state, " data " that above-mentioned flowmeter sends are received by PLC, have finished the process that once reads flow meter data.Similarly, PLC also can send " writing " order that comprises certain flowmeter address, the data in the order is write that flowmeter of this address.
When 485 communications, the flowmeter of wireless telecommunications is in the slave status, and Surveillance center is in the main frame status, not during communication, both all are in accepting state, and every wireless telecommunications flowmeter has unique geocoding of setting, in the time of need reading the instrumented data of certain address.Earlier send query statement by the host monitor center, each the flowmeter instrument that is in the slave status all can be received query statement, but have only the address of a flowmeter to equate with address in the query statement, this flowmeter namely transfers emission state to, flow meter data is launched, and at this moment, Surveillance center has transferred accepting state to, the data of receiving instrument emission are finished process of reading one time.
The content that is not described in detail in this instructions belongs to this area professional and technical personnel's known prior art.
Claims (3)
1. the flowmeter of wireless telecommunications comprises flowmeter gauge outfit housing (1), it is characterized in that: be provided with digital processing circuit plate (2) and wireless communication module (3) in flowmeter gauge outfit housing (1) inside,
The outside surface of flowmeter gauge outfit housing (1) is provided with radio-frequency antenna (4), and radio-frequency antenna (4) is connected with wireless communication module (3) by cable, and radio-frequency antenna (4) is used for emission or receives transmission information between wireless signal and PLC switch board,
Digital processing circuit plate (2) is provided with RS485 communication serial ports, and wireless communication module (3) links to each other with digital processing circuit (2) plate by RS485 communication serial ports.
2. the flowmeter of wireless telecommunications as claimed in claim 1, it is characterized in that: the model of described wireless communication module (3) is BL100A.
3. the flowmeter of wireless telecommunications as claimed in claim 1, it is characterized in that: the power lead of wireless communication module (3), ground wire are connected with 5V power lead, the ground wire of digital processing circuit plate (2) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320120712 CN203132626U (en) | 2013-03-15 | 2013-03-15 | Wireless communication flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320120712 CN203132626U (en) | 2013-03-15 | 2013-03-15 | Wireless communication flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203132626U true CN203132626U (en) | 2013-08-14 |
Family
ID=48940598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320120712 Expired - Lifetime CN203132626U (en) | 2013-03-15 | 2013-03-15 | Wireless communication flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203132626U (en) |
-
2013
- 2013-03-15 CN CN 201320120712 patent/CN203132626U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG JINLONG AUTO-CONTROL EQUIPMENT CO., LTD. Free format text: FORMER OWNER: YU JINHAI Effective date: 20140303 |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 325000 WENZHOU, ZHEJIANG PROVINCE TO: 325207 WENZHOU, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140303 Address after: 325207 Zhejiang province Ruian City Feiyun Town District People Feiyun Road No. 518 Patentee after: ZHEJIANG JINLONG AUTOMATIC CONTROL EQUIPMENT CO.,LTD. Address before: 325000 Wenzhou City, Ruian province Ting Tian Town, No. 434 Middle Road, No. Patentee before: Yu Jinhai |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130814 |
|
| CX01 | Expiry of patent term |