CN203551985U - Two-way CAN bus expansion switching value output module - Google Patents
Two-way CAN bus expansion switching value output module Download PDFInfo
- Publication number
- CN203551985U CN203551985U CN201320532350.3U CN201320532350U CN203551985U CN 203551985 U CN203551985 U CN 203551985U CN 201320532350 U CN201320532350 U CN 201320532350U CN 203551985 U CN203551985 U CN 203551985U
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- output module
- machine box
- way
- bus expansion
- switching value
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- Expired - Fee Related
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Abstract
The utility model discloses a two-way CAN bus expansion switching value output module, comprising a top box, a circuit board hermetically arranged in the top box and an electric connector arranged at an open pore on one end of the top box, wherein a switching value output module is arranged on the circuit board, the switching value output module comprises at least two CAN interfaces, each CAN interface is connected with a transceiver, the transceiver is connected with a microprocessor through an isolation device, and the output end of the microprocessor is connected with at least one relay output circuit through a drive. The two-way CAN bus expansion switching value output module disclosed by the utility model is used for solving the problems that the output of a reinforcement machine expansion output board can only meet the logic control requirements of naval gun armaments after power amplification of a driving unit, the reinforcement machine adopts a data address bus expansion output board to occupy the main board CPU resources and the number of the expansion output boards and the expansion output channels is limited; and meanwhile, solving the problem that the prior art is not suitable for occasions with a large number of control switching values, strong practicability and severe environments.
Description
Technical field
The utility model relates to the data outputting module in a kind of Computer Control Technology, relates in particular to a kind of output module of the CAN of being applied to bus expansion switch amount.
Background technology
Warship canon all adopts switching value to control for defense preparations logics such as mending bullet, emission coefficient, and this often needs to expand a large amount of switching value output channels, and meanwhile, defense preparations logic control object is mainly solenoid valve, and drive current is very large.At present, the reinforcing machine expansion output boards that adopt are controlled in switching value output more, and expansion output board output current is very little, need to, after over-drive unit power amplification, could meet warship canon defense preparations logic control requirement; In addition, reinforcing machine adopts data address bus expansion output board, takies mainboard cpu resource, expansion output board and expansion output channel limited amount.
In addition, Fieldbus Control often adopts the I/O module based on CAN bus, though this I/O module has decentralised control, expand advantage easily, but, I/O module adopts terminal row wiring, and the access of I/O module is counted very little, the occasion that quantity is many, real-time and environment is severe that is not suitable for gauge tap amount.
Utility model content
The purpose of this utility model is just to provide a kind of two-way CAN bus expansion switch amount output module, need to be after over-drive unit power amplification to solve prior art employing reinforcing machine expansion output board, could meet warship canon defense preparations logic control requirement, and reinforcing machine adopts data address bus expansion output board, take mainboard cpu resource, expansion output board and expansion output channel a limited number of problems, and prior art is not suitable for the problem of many, the real-time and occasion that environment is severe of the quantity of gauge tap amount.
For achieving the above object, the utility model is by the following technical solutions:
The utility model comprises that it comprises machine box, and sealing is arranged on the circuit board of machine box inside and is arranged on the electric connector of machine box one end tapping; On circuit board, be furnished with switching value output module, switching value output module comprises at least 2 CAN interfaces, CAN interface is connected with transceiver, and transceiver is connected with microprocessor by isolating device, and the output terminal of microprocessor is connected with at least 1 road outputting circuit for relay by driver.
It also comprises feed circuit, described feed circuit comprise power supply, power supply is connected with linear voltage regulator by DC/DC converter, and linear voltage regulator output terminal is connected with current-limiting resistance row with microprocessor respectively, and current-limiting resistance row be connected with at least 1 outputting circuit for relay.
Described linear voltage regulator is low pressure difference linear voltage regulator.
In described machine box inside, be provided with boss, circuit board is flexibly connected and is arranged on boss.
Described boss is arranged on surrounding and the centre of machine box inside, is provided with threaded hole in the middle of boss, and circuit board is arranged on boss by the bolt matching with threaded hole.
On machine box top, be provided with cover plate, between cover plate and machine box and between electric connector and machine box, be equipped with packoff.
Described machine box is aluminium casing, in machine box side wall upper part, is provided with snap close.
In employing the utility model of scheme solved employing reinforcing machine expansion output board need to be after over-drive unit power amplification, could meet warship canon defense preparations logic control requirement, and reinforcing machine adopts data address bus expansion output board, take mainboard cpu resource, expansion output board and a limited number of problems of expansion output channel; Meanwhile, also solved the problem that prior art is not suitable for many, the real-time and occasion that environment is severe of the quantity of gauge tap amount.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present utility model.
Fig. 2 is physical construction schematic diagram of the present utility model.
Figure number sign is as follows: 1, machine box; 2, boss; 3, snap close; 4, circuit board; 5, electric connector.
Embodiment
As shown in drawings, the utility model machine box 1, sealing is arranged on the circuit board 4 of machine box inside and is arranged on the electric connector 5 of machine box one end tapping; On circuit board 4, be furnished with switching value output module, switching value output module comprises at least 2 CAN interfaces, CAN interface is connected with transceiver, and transceiver is connected with microprocessor by isolating device, and the output terminal of microprocessor is connected with at least 1 road outputting circuit for relay by driver; Described microprocessor is dsp processor, and driver is that one-level drives.The utility model be take dsp processor as core, utilize 2 built-in road CAN controllers of dsp processor, expansion switch amount multichannel output channel, according to signal, according to the requirement of real-time of transmission, classify, Gao Gengxin rate signal and low turnover rate signal transmit by high-speed channel and low speed passage respectively, have solved like this real-time of signal and the contradiction between limited transmission bandwidth; The utility model adopts dsp processor complete independently defense preparations logic control function, has simplified circuit, has reduced arrangement space, has solved the technical matters of expanding a large amount of output channels in warship canon equipment test.
As improvement of the present utility model: it also comprises feed circuit, described feed circuit comprise power supply, power supply is connected with linear voltage regulator by DC/DC converter, linear voltage regulator output terminal is connected with current-limiting resistance row with microprocessor respectively, and current-limiting resistance row be connected with at least 1 outputting circuit for relay; Described linear voltage regulator is low pressure difference linear voltage regulator.
As further improvement of the utility model: be provided with boss 2 in described machine box 1 inside, circuit board 4 is flexibly connected and is arranged on boss 2, the setting of boss makes it go for working under vibration and shock environment.
Described boss 2 is arranged on surrounding and the centre of machine box 1 inside, in the middle of boss, be provided with threaded hole, circuit board 4 is arranged on boss 2 by the bolt matching with threaded hole, in the middle of boss, be provided with threaded hole, circuit board 5 is arranged on boss 2 by the bolt matching with threaded hole, with bolts, facilitate the repair demolition in later stage.
On machine box 1 top, be provided with cover plate, between cover plate and machine box and between electric connector and machine box, be equipped with packoff, packoff is rubber blanket, and this has guaranteed the sealing of machine box integral body, has also guaranteed that internal circuit meets humidity, salt fog, the anti-environmental requirement of dust three simultaneously.
At described machine box 1, be aluminium casing, in machine box side wall upper part, be provided with snap close 3.Machine box is aluminium casing, light and protect, and production cost is low; Connection is installed in the combination facilitating between multimode machine box that arranges of snap close.
Principle of work of the present utility model is as follows: the utility model is powered by power supply, voltage range+the 18V of power supply～+ 36V, through be converted into+5V of DC/DC converter DC voltage, to internal circuit, power, + 5V DC voltage process low pressure difference linear voltage regulator or be converted into+3.3V of low voltage DC/DC converter ,+low-voltages such as 1.8V, give dsp processor chip power supply, wherein more than dsp processor dominant frequency 100MHz, integrated CAN controller, and possess a large amount of universal I/O ports.The preferred dsp processor chip of the utility model TMS320F2833x, integrated 2 road CAN controllers in this dsp processor, and possess the nearly 88 general GPIO ports in road, circuit board adopts this chip design, need not increase CAN controllers and address data bus expansion IO port, simplify circuit, reduced arrangement space, improved reliability.CAN communicating circuit is design isolated circuit and transceiver circuit only, and isolating device adopts magnetic isolating device, and circuit is simple, and voltage isolation Level and signal transmission speed are high, and transceiver adopts CAN bus transmitting-receiving special chip, possesses good EMC interference free performance.Output port in switching value output control circuit adopts dsp chip GPIO port, and after logic OC door or the amplification of Darlington transistor one-level drive current, then by relay power amplification, relay drive current reaches more than 2 amperes, is directly used in control solenoid valve.
Claims (7)
1. a two-way CAN bus expansion switch amount output module, is characterized in that: it comprises machine box (1), and sealing is arranged on the circuit board (4) of machine box inside and is arranged on the electric connector (5) of machine box one end tapping; On circuit board (4), be furnished with switching value output module, switching value output module comprises at least 2 CAN interfaces, CAN interface is connected with transceiver, and transceiver is connected with microprocessor by isolating device, and the output terminal of microprocessor is connected with at least 1 road outputting circuit for relay by driver.
2. two-way CAN bus expansion switch amount output module according to claim 1, it is characterized in that: it also comprises feed circuit, described feed circuit comprise power supply, power supply is connected with linear voltage regulator by DC/DC converter, linear voltage regulator output terminal is connected with current-limiting resistance row with microprocessor respectively, and current-limiting resistance row be connected with at least 1 outputting circuit for relay.
3. two-way CAN bus expansion switch amount output module according to claim 2, is characterized in that: described linear voltage regulator is low pressure difference linear voltage regulator.
4. two-way CAN bus expansion switch amount output module according to claim 1, is characterized in that: in described machine box (1) inside, be provided with boss (2), circuit board (4) is flexibly connected and is arranged on boss (2).
5. two-way CAN bus expansion switch amount output module according to claim 4, it is characterized in that: described boss (2) is arranged on machine box (1) inner surrounding and centre, be provided with threaded hole in the middle of boss, circuit board (4) is arranged on boss (2) by the bolt matching with threaded hole.
6. two-way CAN bus expansion switch amount output module according to claim 1, is characterized in that: on machine box (1) top, be provided with cover plate, between cover plate and machine box and between electric connector (5) and machine box, be equipped with packoff.
7. two-way CAN bus expansion switch amount output module according to claim 1, is characterized in that: described machine box (1) is aluminium casing, in machine box side wall upper part, is provided with snap close (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320532350.3U CN203551985U (en) | 2013-08-29 | 2013-08-29 | Two-way CAN bus expansion switching value output module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320532350.3U CN203551985U (en) | 2013-08-29 | 2013-08-29 | Two-way CAN bus expansion switching value output module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203551985U true CN203551985U (en) | 2014-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320532350.3U Expired - Fee Related CN203551985U (en) | 2013-08-29 | 2013-08-29 | Two-way CAN bus expansion switching value output module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203551985U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116799573A (en) * | 2023-07-03 | 2023-09-22 | 四川航天电液控制有限公司 | Injection molding mining vehicle-mounted Ethernet type low-power-consumption isolation coupler |
-
2013
- 2013-08-29 CN CN201320532350.3U patent/CN203551985U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116799573A (en) * | 2023-07-03 | 2023-09-22 | 四川航天电液控制有限公司 | Injection molding mining vehicle-mounted Ethernet type low-power-consumption isolation coupler |
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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: 20140416 Termination date: 20210829 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |