CN206865480U - A kind of CAN data conversion device - Google Patents
A kind of CAN data conversion device Download PDFInfo
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- CN206865480U CN206865480U CN201720622908.5U CN201720622908U CN206865480U CN 206865480 U CN206865480 U CN 206865480U CN 201720622908 U CN201720622908 U CN 201720622908U CN 206865480 U CN206865480 U CN 206865480U
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Abstract
The utility model provides a kind of CAN data conversion device, including USB interface, controller, transceiver and the CAN interface being sequentially connected；The USB interface is additionally operable to be connected with host computer；The CAN interface is additionally operable to be connected with CAN；The controller is a single-chip microcomputer, the single-chip microcomputer includes data processing module, USB control modules and CAN control modules, the data processing module is used for the mutual conversion for realizing usb signal and CAN signal, the USB control modules are used to control the USB interface receiving and transmitting signal, and the CAN control modules are used to control CAN interface receiving and transmitting signal；The transceiver is used for the level conversion for realizing CAN signal.Two IC chips of the utility model CAN data conversion device, only controller and transceiver, it is simple in construction, it is possible to increase the reliability of equipment, to reduce production cost.
Description
Technical field
Data conversion device technical field is the utility model is related to, more particularly to a kind of CAN data conversion device.
Background technology
CAN is because its real-time is high, and transmission range is relatively far away from, therefore all widely should in many monitoring systems
With.But CAN is not computer standard interface, collection can not be directly observed on computers in many application scenarios
The data arrived, and to use special-purpose assorted industrial computer；USB interface makes the standard interface of computer, and the characteristic of plug and play makes
Its use is extremely convenient.CAN data are exactly converted to usb data by CAN data conversion equipment, can be direct
With the convenient connection of host computer.But there is apparatus structure complexity, the higher deficiency of cost in existing CAN data conversion.
Therefore, a kind of CAN data conversion device simple in construction, cost is cheap how is founded, is art technology
Personnel's urgent problem to be solved.
Utility model content
The technical problems to be solved in the utility model is to provide CAN data conversion dress simple in construction, that cost is cheap
Put, to overcome the problem of existing CAN data conversion device is complicated, cost is higher.
In order to solve the above technical problems, the utility model provides a kind of CAN data conversion device, including connect successively
USB interface, controller, transceiver and the CAN interface connect；The USB interface is additionally operable to be connected with host computer；The CAN
EBI is additionally operable to be connected with CAN；The controller is a single-chip microcomputer, the single-chip microcomputer include data processing module,
USB control modules and CAN control modules, the data processing module are used to realize that usb signal and the mutual of CAN signal turn
Change, the USB control modules are used to control the USB interface receiving and transmitting signal, and the CAN control modules are used to control CAN
Interface receiving and transmitting signal；The transceiver is used for the level conversion for realizing CAN signal.
As a kind of improvement of the present utility model, the CAN data conversion device is powered by the USB interface.
Further improve, the single-chip microcomputer is MCF51JM128 cake cores.
Further improve, the transceiver is TJA1040 type CAN transceivers.
Further improve, the CAN interface is DB9 interfaces.
After above-mentioned design, the utility model at least has advantages below：
1st, two IC chips of the CAN data conversion device, only controller and transceiver, it is simple in construction,
The reliability of equipment can be improved, reduce production cost.
2nd, powered by USB interface for the CAN data conversion device, voltage-regulation chip can be eliminated, have and be easy to
Further simplify structure.
Brief description of the drawings
Above-mentioned is only the general introduction of technical solutions of the utility model, in order to better understand technology hand of the present utility model
Section, below in conjunction with accompanying drawing, the utility model is described in further detail with embodiment.
Fig. 1 is the principle schematic of the utility model CAN data conversion device.
Embodiment
CAN data conversion device of the present utility model, including be sequentially connected USB interface, controller, transceiver and
CAN interface；USB interface is additionally operable to be connected with host computer；CAN interface is additionally operable to be connected with CAN；Controller is
One single-chip microcomputer, single-chip microcomputer include data processing module, USB control modules and CAN control modules, and data processing module is used to realize
The conversion of usb signal and CAN signal, USB control modules are used to control USB interface receiving and transmitting signal, and CAN control modules are used for
Control CAN interface receiving and transmitting signal；Transceiver is used for the level conversion for realizing CAN signal.
Only two IC chips of controller and transceiver of the CAN data conversion device, simple in construction, energy
Enough improve the reliability of equipment, reduce production cost.
Specifically, as shown in figure 1, the CAN data conversion device, including the PCB provided with through hole, USB interface, control
Device, transceiver and CAN interface are respectively mounted on the pcb.Wherein, USB interface is welded on PCB by the through hole, monolithic
Machine is by USB interface and upper machine communication, and host computer is powered by USB interface for the CAN data conversion device,
The voltage of USB interface is 5V, is powered by USB interface, moreover it is possible to eliminates voltage-regulation chip, has and be easy to further simplify knot
Structure, can be by PCB area compression to about 8cm2。
Single-chip microcomputer can use MCF51JM128 cake cores, and MCF51JM128 cake core processing speeds are very fast.Transceiver is used for
Change the level of CAN signal.Transceiver can use TJA1040 type CAN transceivers, the transmitting-receiving of TJA1040 types CAN
Device data transmission bauds is high, and electromagnetic radiation is low, strong antijamming capability, and can depart from not power-up state from bus, and zero is negative
Carry.CAN interface can use DB9 interfaces, equally be directly welded on PCB, DB9 interface structures are simple, easy to connect.
Operation principle：After the CAN data conversion device obtains CAN signal by CAN interface, pass through receipts
Device is sent out by the level conversion of CAN signal into the level for meeting single-chip microcomputer requirement, single-chip microcomputer is recombinated and encapsulated to data
And usb signal is formed, host computer is then transferred to by USB interface.Conversely, after usb signal is received by USB interface,
Single-chip data is recombinated to data and forms CAN signal, and is turned the level of the CAN signal by transceiver
Change the level for meeting CAN requirement into, be then sent to by CAN interface in CAN.
Certainly, the concrete model of above-mentioned single-chip microcomputer, transceiver and CAN interface can adjust according to being actually needed.
CAN data reforming unit of the present utility model, simple in construction, compact in design, low-profile and cost are low
It is honest and clean.
It is described above, only it is preferred embodiment of the present utility model, not the utility model is made any formal
Limitation, those skilled in the art make a little simple modification, equivalent variations or modification using the technology contents of the disclosure above,
Fall in the scope of protection of the utility model.
Claims (5)
1. a kind of CAN data conversion device, it is characterised in that including the USB interface, controller, transceiver being sequentially connected
And CAN interface；
The USB interface is additionally operable to be connected with host computer；
The CAN interface is additionally operable to be connected with CAN；
The controller is a single-chip microcomputer, and the single-chip microcomputer includes data processing module, USB control modules and CAN control modules,
The data processing module is used for the mutual conversion for realizing usb signal and CAN signal, and the USB control modules are used to control
The USB interface receiving and transmitting signal is made, the CAN control modules are used to control CAN interface receiving and transmitting signal；
The transceiver is used for the level conversion for realizing CAN signal.
2. CAN data conversion device according to claim 1, it is characterised in that the CAN data conversion dress
Put and powered by the USB interface.
3. CAN data conversion device according to claim 1, it is characterised in that the single-chip microcomputer is
MCF51JM128 cake cores.
4. CAN data conversion device according to claim 1, it is characterised in that the transceiver is TJA1040 types
CAN transceiver.
5. CAN data conversion device according to claim 1, it is characterised in that the CAN interface is DB9
Interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720622908.5U CN206865480U (en) | 2017-05-31 | 2017-05-31 | A kind of CAN data conversion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720622908.5U CN206865480U (en) | 2017-05-31 | 2017-05-31 | A kind of CAN data conversion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206865480U true CN206865480U (en) | 2018-01-09 |
Family
ID=60825812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720622908.5U Active CN206865480U (en) | 2017-05-31 | 2017-05-31 | A kind of CAN data conversion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206865480U (en) |
-
2017
- 2017-05-31 CN CN201720622908.5U patent/CN206865480U/en active Active
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