CN201170921Y - Alarm controller for combustible gas base on CAN bus network - Google Patents
Alarm controller for combustible gas base on CAN bus network Download PDFInfo
- Publication number
- CN201170921Y CN201170921Y CNU2008200187484U CN200820018748U CN201170921Y CN 201170921 Y CN201170921 Y CN 201170921Y CN U2008200187484 U CNU2008200187484 U CN U2008200187484U CN 200820018748 U CN200820018748 U CN 200820018748U CN 201170921 Y CN201170921 Y CN 201170921Y
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- bus
- alarm controller
- flammable gas
- gas alarm
- combustible gas
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Abstract
The utility model discloses a flammable gas alarm controller based on a CAN bus network, which belongs to a flammable gas leakage detection and alarm device. The flammable gas alarm controller comprises a central processor, an alarm circuit, a display, a printer, an input device, detectors and linkages; wherein, the central processor is provided with CAN interfaces, which are connected with eight to thirty two CAN/485 converter modules through a CAN bus; each converter module is provided with a DIP switch and connected with at least one gas detector and at least one linkage through a RS485 bus. With a fault self-diagnosis function, the flammable gas alarm controller is highly reliable and can effectively isolate part of fault points. With the self-diagnosis function, the flammable gas alarm controller can detect the owned illuminating elements and sound. The flammable gas alarm controller has reliable performance and strong universality. Because the capacity of the bus is large, the bus can support 1024 nodes at the maximum. The performance properties of the online controller and detectors can be configured.
Description
Technical field
The utility model belongs to combustible gas leakage and detects and panalarm.
Background technology
The development field bus technique has become the focus problem of widely paying close attention in the industrial automation field, and the research of fieldbus, exploitation in the world makes TT﹠C system break through the confinement of long-term closed system, goes on the journey of open-development.The networking of automated system is the megatrend of development, and it is very deep that field bus technique is subjected to the influence of computer networking technology.Now network technology is maked rapid progress, and develops very rapidly, and some network new technologies with significant impact will further be fused among the field bus technique.
At domestic measurement and control area in the past,, adopt BITBUS or RS-485 mostly as communication bus owing to there is not better choice.Its deficiency mainly contains: be the point-to-point communication, 1000 meters of the longest communication distance less thaies, one much more main from, irredundant; Data communication is a command response, and transfer rate is low; A little less than the error processing capacity.
The utility model content
Near in order to overcome existing use RS-485 as the controller communication distance of communication bus, the deficiency that Control Node is few, the purpose of this utility model provides a kind of combustible gas alarm controller based on the CAN bus network, this a kind of combustible gas alarm controller based on the CAN bus network not only can connect more node, and can reach 10 kms by communication distance.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of combustible gas alarm controller based on the CAN bus network, comprise central processing unit, warning circuit, display,, printing device, input media, detector, linkage, it is characterized in that: central processing unit is equipped with the CAN interface, link to each other with 8-32 CAN/485 modular converter by the CAN bus, the DIP toggle switch is housed on each modular converter, and is connecting at least one gas detector and at least one interlock module by the RS485 bus.
Described gas detector links to each other with central controller through RS485 bus, CAN/485 modular converter and CAN bus by the I/C converter.
Connecting solenoid valve or exhaust equipment or fire-fighting fire-extinguishing equipment on the described interlock module.
The disclosed combustible gas alarm controller based on the CAN bus network of the utility model sends to the CAN/485 modular converter by detector collection site signal and by 485 buses with concentration information and node state, the CAN/485 modular converter is sending to controller to nodal information by the CAN bus, and whether controller sends sound and light alarm and output signal according to concentration and node state decision.If must produce output signal, then the output command slave controller sends to the CAN/485 modular converter through the CAN bus, and the CAN/485 modular converter is sending to the interlock module through 485 buses, and the interlock module produces output when receiving action command.Equally detector being carried out when parameter is provided with is that the controller generation is provided with order equally, this order sends to the CAN/485 modular converter through the CAN bus, the CAN/485 modular converter will be provided with order through 485 buses and pass on detector, detector is revised self parameter and generation response according to order is set, and the transmission route of this response is identical with concentration signal.
The beneficial effects of the utility model are that this combustible gas alarm controller has fault self-diagnosis function, system reliability height, effectively isolated part trouble spot.Self-checking function is arranged, can detect the luminescent device of system own, sound.Dependable performance, highly versatile.Bus capacity is big, 1024 nodes of maximum support.The performance parameter of controller and detector can onlinely be set.
Description of drawings
Accompanying drawing 1 is a circuit structure block scheme of the present utility model,
Among the figure, 1. warning circuit, 2 towards central processor, 3. display, 4. input media, 5. printing device, 6.CAN bus, 7.CAN/485 modular converter, 8.RS485 bus, 9. gas detector, 10. interlock module.
Embodiment
Embodiment of the present utility model is, as shown in the figure:
Claims (3)
1. combustible gas alarm controller based on the CAN bus network, comprise central processing unit, warning circuit, display, printing device, input media, detector, linkage, it is characterized in that: central processing unit is equipped with the CAN interface, link to each other with 8-32 CAN/485 modular converter by the CAN bus, the DIP toggle switch is housed on each modular converter, and is connecting at least one gas detector and at least one interlock module by the RS485 bus.
2. a kind of combustible gas alarm controller based on the CAN bus network according to claim 1 is characterized in that: described gas detector links to each other with central controller through RS485 bus, CAN/485 modular converter and CAN bus by the I/C converter.
3. a kind of combustible gas alarm controller based on the CAN bus network according to claim 1 is characterized in that: connecting solenoid valve or exhaust equipment or fire-fighting fire-extinguishing equipment on the described interlock module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200187484U CN201170921Y (en) | 2008-03-06 | 2008-03-06 | Alarm controller for combustible gas base on CAN bus network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200187484U CN201170921Y (en) | 2008-03-06 | 2008-03-06 | Alarm controller for combustible gas base on CAN bus network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201170921Y true CN201170921Y (en) | 2008-12-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200187484U Expired - Fee Related CN201170921Y (en) | 2008-03-06 | 2008-03-06 | Alarm controller for combustible gas base on CAN bus network |
Country Status (1)
| Country | Link |
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| CN (1) | CN201170921Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102130809A (en) * | 2010-10-26 | 2011-07-20 | 北京鼎汉技术股份有限公司 | Method and system for increasing RS485 polling efficiency |
| CN102142181A (en) * | 2011-03-02 | 2011-08-03 | 安徽泓瑞医用设备工程有限公司 | Medical gas warning system |
| CN102280003A (en) * | 2011-06-03 | 2011-12-14 | 广州保得威尔电子科技有限公司 | Embedded single loop linkage fire-fighting system for fire disasters |
| CN105528865A (en) * | 2016-01-25 | 2016-04-27 | 詹朝润 | Combustible gas detection alarm device |
| CN110426978A (en) * | 2019-08-12 | 2019-11-08 | 深圳市泛海三江电子股份有限公司 | Bus type combustible gas detection control circuit, method and device |
-
2008
- 2008-03-06 CN CNU2008200187484U patent/CN201170921Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102130809A (en) * | 2010-10-26 | 2011-07-20 | 北京鼎汉技术股份有限公司 | Method and system for increasing RS485 polling efficiency |
| CN102142181A (en) * | 2011-03-02 | 2011-08-03 | 安徽泓瑞医用设备工程有限公司 | Medical gas warning system |
| CN102142181B (en) * | 2011-03-02 | 2016-10-12 | 安徽泓瑞医用设备工程有限公司 | Medical gas warning system |
| CN102280003A (en) * | 2011-06-03 | 2011-12-14 | 广州保得威尔电子科技有限公司 | Embedded single loop linkage fire-fighting system for fire disasters |
| CN102280003B (en) * | 2011-06-03 | 2013-06-05 | 广州保得威尔电子科技有限公司 | Embedded single loop linkage fire-fighting system for fire disasters |
| CN105528865A (en) * | 2016-01-25 | 2016-04-27 | 詹朝润 | Combustible gas detection alarm device |
| CN105528865B (en) * | 2016-01-25 | 2018-06-15 | 詹朝润 | A kind of combustible gas detecting warning device |
| CN110426978A (en) * | 2019-08-12 | 2019-11-08 | 深圳市泛海三江电子股份有限公司 | Bus type combustible gas detection control circuit, method and device |
| CN110426978B (en) * | 2019-08-12 | 2024-04-02 | 深圳市高新投三江电子股份有限公司 | Bus type combustible gas detection control circuit, method and device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081224 |