CN202886974U - Server computer remote control system based on controller area network (CAN) bus - Google Patents
Server computer remote control system based on controller area network (CAN) bus Download PDFInfo
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- CN202886974U CN202886974U CN2012205905798U CN201220590579U CN202886974U CN 202886974 U CN202886974 U CN 202886974U CN 2012205905798 U CN2012205905798 U CN 2012205905798U CN 201220590579 U CN201220590579 U CN 201220590579U CN 202886974 U CN202886974 U CN 202886974U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model discloses a server computer remote control system based on a controller area network (CAN) bus. The system consists of a host node and a slave node, wherein the host node consists of a No. zero node communication module, a network switch and a computer terminal, and the slave node consists of a No. 1 node communication module and a server computer. The system is characterized in that the No. zero node communication module comprises a central processor, a CAN communication module and an Ethernet communication module, and the No. 1 node communication module comprises the central processor, the CAN communication module, a universal serial bus (USB) communication module and a switch control unit; and the No. zero node communication module is connected with the computer terminal through the network switch, the No. 1 node communication module is connected with the server computer through a USB cable and a switch connection line, and the host node is connected with the slave node through a CAN bus cable. The system has the beneficial effects that the computer terminal is utilized to remotely control the server computer, so that human recourses for managing and maintaining the server computer are saved.
Description
[technical field]
The utility model relates to computer realm, particularly relates to a kind of server computer tele-control system based on the CAN bus.
[background technology]
Server computer is a kind of high-performance computer, and it is as network node, and access and the processing of data and information being provided for each network terminal computer are served.Along with the develop rapidly of computer networking technology and the people day by day increase to network demand, needed server computer quantity is more and more, thereby hundreds of have been occurred having placed, even the medium-and-large-sized server computer machine room of thousands of station server computers, thereby administering and maintaining also to become and become increasingly complex server computer.Because server computer always needs whole day to run without interruption, when causing server computer out of service owing to faults such as softwares, the actions such as the technician of management server computer need to arrange server computer immediately and restart, at this moment, the technician just needs the machine room to special service device computer, find out the server computer that this breaks down, this server computer is operated, this has brought very large inconvenience to the technician.Based on defects, we need a kind of tele-control system that can manage and safeguard the server computer of One's name is legion in the server computer machine room, so that the technician can start shooting to server computer by terminal long-range, perhaps shut down or restart etc. administers and maintains operation.
[summary of the invention]
The purpose of this utility model is to overcome defects, and a kind of server computer tele-control system based on the CAN bus is provided.
The purpose of this utility model is achieved in that a kind of server computer tele-control system based on the CAN bus, it is comprised of host node 100 and subordinate computer node 200, host node 100 is by No. 0 node communication module 110, the network switch 130 and terminal 120 form, subordinate computer node 200 is comprised of No. 1 node communication module 210 and server computer 220, it is characterized in that: described No. 0 node communication module comprises central processing unit (1), CAN communication module (2), ethernet communication module (3), described No. 1 node communication module comprises central processing unit (1), CAN communication module (2), usb communication module (4) and switch control unit (5); Described No. 0 node communication module 110 is connected with terminal and is connected by the network switch 130, described No. 1 node communication module 210 is connected with server computer to be connected with the switch connecting line by USB cable 230 and is connected, connect by CAN bus cable 300 between described host node 100 and the subordinate computer node 200, described terminal 120 sends steering order, this steering order is via the network switch 130, No. 0 node communication module 110, CAN bus cable 300 arrives No. 1 node communication module 210, and controls by USB cable 230 or 240 pairs of server computers 220 of switch connecting line.
In the said structure, described server computer 220 refers to a kind of high-performance computer that can give the network services such as access that each network terminal provides data and information and processing.
In the said structure, the described network switch 130 refer to a kind of can with are connected a computing machine or the network terminal and connect, consist of the equipment of a LAN (Local Area Network).
In the said structure, described computing terminal 120 refers to a kind of common computer that can be connected in the LAN (Local Area Network).
In the said structure, described USB cable 230 refers to for the connecting line that connects usb host end and equipment end.
In the said structure, described switch connecting line 240 can adopt the plain conductor with conducting function.
In the said structure, described central processing unit (1) is 8,16 or 32 s' microprocessor.
In the said structure, described CAN communication module (2) is by the CAN bus controller, the CAN buses isolator, and CAN bus driver and CAN bus interface form.
In the said structure, described ethernet communication module (3) is comprised of ethernet controller and Ethernet interface.
In the said structure, described usb communication module (4) is comprised of USB controller and USB interface, and it is operated in USB HID pattern, is configured to a USB keyboard equipment.It is controlled described server computer 220 to the mode of described server computer 220 to send the keyboard key.
In the said structure, the switching on and shutting down button of described switch control unit (5) and above-mentioned server computer 220 links to each other by switch connecting line 240 with reboot button, for server computer 220 being started shooting or shut down or restarting control.
The beneficial effects of the utility model are: the technician can be by terminal 120 from the long-range key input of server computer 220 being carried out keyboard, perhaps to server computer 220 operation such as start shooting or shut down or restart, greatly improved convenience and dirigibility that server computer 220 is managed and safeguards, saved server computer 220 is managed and safeguard needed human resources.
[description of drawings]
Fig. 1 is the structured flowchart of the utility model specific embodiment;
Fig. 2 is the connected mode figure of system of the utility model specific embodiment;
Fig. 3 is No. 0 node communication modular structure block diagram of the utility model specific embodiment;
Fig. 4 is No. 1 node communication modular structure block diagram of the utility model specific embodiment;
Fig. 5 is the CAN communication module circuit diagram of the utility model specific embodiment;
Fig. 6 is the usb communication module circuit diagram of the utility model specific embodiment;
Fig. 7 is the switch control unit circuit diagram of the utility model specific embodiment;
[embodiment]
Below in conjunction with accompanying drawing the utility model specific embodiment is described in detail.
As shown in Figure 1, the utility model relates to a kind of server computer tele-control system based on the CAN bus, it is comprised of host node 100 and subordinate computer node 200, host node 100 is by No. 0 node communication module 110, the network switch 130 and terminal 120 form, subordinate computer node 200 is comprised of No. 1 node communication module 210 and server computer 220, it is characterized in that: described No. 0 node communication module comprises central processing unit (1), CAN communication module (2), ethernet communication module (3), described No. 1 node communication module comprises central processing unit (1), CAN communication module (2), usb communication module (4) and switch control unit (5); Described No. 0 node communication module 110 is connected with terminal and is connected by the network switch 130, described No. 1 node communication module 210 is connected with server computer to be connected with the switch connecting line by USB cable 230 and is connected, connect by CAN bus cable 300 between described host node 100 and the subordinate computer node 200, described terminal 120 sends steering order, this steering order is via the network switch 130, No. 0 node communication module 110, CAN bus cable 300 arrives No. 1 node communication module 210, and carries out Long-distance Control by USB cable 230 or 240 pairs of server computers of switch connecting line 220.
Fig. 2 is the connected mode figure of system of the utility model specific embodiment.The CAN bus be a kind of much much more main from bus structure, on the CAN bus arbitrary node can be at any time on one's own initiative other CAN node on the CAN bus network send information, can realize free communication between each CAN node.Among Fig. 2, host node 100 and a plurality of subordinate computer node 200 link together by the CAN bus cable.According to the CAN bus protocol, up to a hundred subordinate computer nodes 200 can link together and CAN bus network of host node 100 compositions.In addition, in host node 100, many terminals 120 link to each other with No. 0 node communication module 110 by the network switch 130, and many terminals 120 and No. 0 node communication module 110 have formed a LAN (Local Area Network) (LAN) jointly.System's connected mode of the utility model specific embodiment is so that any terminal 120 in the whole system all can carry out Long-distance Control to any station server computer 220 in the system.Among Fig. 2, the two ends of two differential signals of CAN bus link to each other with terminal resistance, make it to mate with the impedance phase of CAN bus cable, to guarantee the signal integrity letter of CAN bus transfer.
Fig. 3 is No. 0 node communication modular structure block diagram in the utility model specific embodiment, it comprises central processing unit (1), CAN communication module (2), ethernet communication module (3), it plays the effect that connects calculation machine terminal 120 and CAN bus cable 300.
Fig. 4 is No. 1 node communication modular structure block diagram in the utility model specific embodiment, it comprises central processing unit (1), CAN communication module (2), usb communication module (4) and switch control unit (5), it is communicated by letter with host node 100 by CAN communication module (2), and by usb communication module (4) and switch control unit (5) server computer 220 is controlled.
Above-mentioned central processing unit (1) can adopt 8,16 or 32 s' microprocessor.In the utility model specific embodiment, selected central processing unit (1) is based on the 32-bit microprocessor STM32F107VCT of Cortex-M3 kernel, its inner integrated CAN bus controller, the media access controller of USB controller and ethernet controller (MAC) is responsible for various data are processed conversion with form.
Above-mentioned CAN communication module (2) is by the CAN bus controller, the CAN buses isolator, and CAN bus driver and CAN bus interface form.The CAN bus controller for generation of or receive the signal meet the CAN bus protocol so that central processing unit (1) can carry out data communication with the CAN bus; The CAN bus driver is used for the level signal that the CAN bus controller produces is converted to differential signal, perhaps differential signal is converted to the discernible level signal of CAN bus controller; The CAN buses isolator is used for the electrical connection between isolated can bus controller and the CAN bus driver, so that in described tele-control system, the terminal 120 in the host node 100 and the server computer 220 in the subordinate computer node 200 are independent mutually on electrical specification; The CAN bus interface is used for connecting the object medium CAN bus cable of CAN bus, connect by CAN bus cable 300 between described host node 100 and the subordinate computer node 200, CAN bus cable 300 can adopt two handsome line cables or concentric cable etc. to meet the cable of CAN bus communication requirement.
Fig. 5 is the CAN communication module circuit diagram of the utility model specific embodiment, in this specific embodiment, the CAN bus controller adopts the inner integrated CAN bus controller of central processing unit (1) STM32F107VCT, the CAN buses isolator adopts light lotus root isolating device 6N137, the CAN bus driver adopts the TJA1050T chip, and the CAN bus interface adopts the contact pin of four pins, and it comprises the CAN signal ground, the CAN power supply, CAN differential signal line CANH and four signals of CAN differential signal line CANL.Among Fig. 5, U20 and U21 are the CAN buses isolators, and U22 is the CAN bus driver, and J23 is the CAN bus interface.Pin on the CAN bus controller of U20 and U21 and central processing unit (1) links to each other, the CAN bus signals through the isolation of light lotus root after, link to each other with U22, U22 converts the CAN signal to differential signal, is connected to J23.
Above-mentioned ethernet communication module (3) is comprised of ethernet controller and Ethernet interface, wherein ethernet controller comprises media access controller (MAC) and physical interface transceiver (PHY) two parts, and Ethernet interface comprises Ethernet isolating transformer and RJ45 Ethernet joint.In the utility model specific embodiment, the media access controller of ethernet controller (MAC) adopts the inner integrated Ethernet media access controller (MAC) of central processing unit (1) STM32F107VCT, Ethernet physical interface transceiver (PHY) adopts the DM9161AEP chip, and it links to each other with Ethernet media access controller (MAC) on the central processing unit (1) by the MII bus interface; Ethernet interface adopts HR911105A, and it has comprised Ethernet isolating transformer and RJ45 network joint, and ethernet communication module (3) is connected on the network switch 130 by this RJ45 network joint.
Above-mentioned usb communication module (4) is comprised of USB controller and USB interface.In the utility model specific embodiment, the USB controller adopts the inner integrated USB controller of central processing unit (1) STM32F107VCT.
Fig. 6 is the usb communication module circuit diagram of the utility model specific embodiment, among the figure, J30 is USB interface, its differential signal line DM and differential signal line DP link to each other with USB controller pin on the central processing unit (1) by resistance, simultaneously, also comprised USB ground pin on the USB interface J30, and the 5V power pin.In subordinate computer node 200, usb communication module (4) links to each other with server computer 220 by the USB cable 230 that is connected on the USB interface J30.
Above-mentioned switch control unit (5) is comprised of ON-OFF control circuit and switch connecting contact pin.ON-OFF control circuit can adopt relay or metal-oxide-semiconductor or triode.In the utility model specific embodiment, adopt metal-oxide-semiconductor to form on-off circuit.This switch control unit (5) is connected to by switch connecting line 240 on the shift knob and reset button of server computer 220, can start shooting to server computer 220, perhaps shutdown, perhaps reboot operation.Switch connecting line 240 can adopt the plain conductor with conducting function.
Fig. 7 is the switch control unit circuit diagram of the utility model specific embodiment, and among the figure, Q40 and Q41 are that model is the NMOS pipe of 2N7002, and J42 is the contact pin for connecting valve connecting line 240.The 1st pin of Q40 and Q41 links to each other with the I0 pin of central processing unit (1), and the 2nd pin of Q40 and Q41 links to each other with signal ground, and is connected on the switch connecting contact pin J42, and the 3rd pin of Q40 and Q41 also is connected respectively on the switch connecting contact pin J42.Switch connecting contact pin J42 is connected respectively on the switching on and shutting down button and reboot button of server computer 220 by switch connecting line 240.When central processing unit (1) need to be started shooting to server computer 220, it exports high level by its I0 pin at the 1st pin of Q40, at this moment, the 2nd pin of Q40 and the 3rd pin conducting, be equivalent to manually supress the start button of server computer 220, thereby realized the boot action to server computer 220; When central processing unit (1) need to be restarted server computer 220, it exports high level by its I0 pin at the 1st pin of Q41, at this moment, the 2nd pin of Q41 and the 3rd pin conducting, be equivalent to manually supress the reboot button of server computer 220, thereby realized restarting server computer 220.After central processing unit (1) is finished required control action, in the 1st pin output low level of Q40 and Q41, at this moment, and the 2nd pin of Q40 and Q41 and the no longer conducting of the 3rd pin, thus discharged the switching on and shutting down of server computer 220 or the control of restarting.
In the utility model specific embodiment, the USB controller of usb communication module (4) is operated in USB HID pattern, and it is configured to a USB keyboard equipment.No. 1 node communication module 210 in the subordinate computer node 200 is as the USB keyboard of server computer 220, and it is by realizing the control to server computer 200 to server computer 220 transmission keyboard keys.Server computer 200 searches out usb communication module (3) by enumerating USB device, then adds this USB communication module (3) as the keyboard peripheral hardware of its standard.
When needs are controlled server computer 220 by the usb communication module (4) in the subordinate computer node 200, terminal 120 in the host node 100 sends needed keyboard key to 0 node communication module 110 by ethernet communication module (3), No. 0 node communication module 110 outputs to this keyboard key on the object medium CAN bus cable 300 of CAN bus by its CAN bus interface, after No. 1 node communication module 210 in the subordinate computer node 200 receives this keyboard key code value, by its USB communication module (5) this keyboard key code value is sent to server computer 220, server computer 220 is namely made corresponding response according to this keyboard key code value, thereby has realized the Long-distance Control of the server computer 220 in 120 pairs of subordinate computer nodes 200 of terminal in the host node 100.As an example in the utility model specific embodiment, on the server computer 220 of the key value that terminal 120 in the host node 100 can send three keyboards of CTRL+ALT+DEL in the subordinate computer node 200, after server computer 220 is received this keyboard key code value, namely carry out and the corresponding computer homing action of three keyboards of CTRL+ALT+DEL.
When needs are started shooting to server computer 220 by the switch control unit in the subordinate computer node 200 (5), perhaps shutdown, when perhaps resetting control, terminal 120 in the host node 100 sends corresponding instruction to 0 node communication module 110 by ethernet communication module (3), No. 0 node communication module 110 outputs to this instruction on the object medium CAN bus cable 300 of CAN bus by its CAN bus interface, after No. 1 node communication module 210 in the subordinate computer node 200 receives this instruction, by its switch control unit (5) server computer 220 is carried out corresponding start, perhaps shutdown, perhaps reboot operation.
In the utility model specific embodiment, the ethernet communication module (3) in the described host node 100 has comprised a web page server.Terminal 120 in the host node 100 visits the webpage control interface that the server computer 220 in the subordinate computer node 200 is controlled by the IP address of input ethernet communication module (3) in the address field of its web browser.By input keyboard key set code or switching on and shutting down on this webpage control interface, the steering order such as restart, namely can realize the Long-distance Control to the server computer 220 in the subordinate computer node 200.
In the utility model specific embodiment, in order to guarantee the reliability of Long-distance Control, when host node 100 sends keyboard key or steering order, in the packet that the CAN bus is communicated by letter, comprised source address and destination address, and the check code of keyboard key or steering order.After the CAN communication module receives keyboard key or steering order at every turn, can at first test to these data, just carry out corresponding control operation after check is correct, in addition, subordinate computer node 200 has also adopted information passback pattern by its CAN communication module (2), and it has received this keyboard key or steering order to inform host node 100.
It is to be noted; the utility model is not limited at the specific embodiment described in the instructions; any simple modification that any those skilled in the art do above-mentioned specific embodiment in based on the utility model scheme; equivalent variations and equivalent transformation are all in protection domain of the present utility model.
Claims (7)
1. server computer tele-control system based on the CAN bus, it is comprised of host node and subordinate computer node, host node is by No. 0 node communication module, the network switch and terminal form, subordinate computer node is comprised of No. 1 node communication module and server computer, it is characterized in that: described No. 0 node communication module comprises central processing unit, CAN communication module and ethernet communication module, described No. 1 node communication module comprises central processing unit, the CAN communication module, usb communication module and switch control unit; Described No. 0 node communication module is connected the network switch with terminal and is connected, described No. 1 node communication module is connected USB cable and is connected with the switch connecting line with the server computer expert, connect by the CAN bus cable between described host node and the subordinate computer node, described terminal sends steering order, this steering order is via the network switch, No. 0 node communication module, the CAN bus cable arrives No. 1 node communication module, and by USB cable or switch connecting line server computer is controlled.
2. a kind of server computer tele-control system based on the CAN bus as claimed in claim 1 is characterized in that: described central processing unit adopts 8,16 or 32 s' microprocessor.
3. a kind of server computer tele-control system based on the CAN bus as claimed in claim 1 is characterized in that: described CAN communication module is by the CAN bus controller, the CAN buses isolator, and CAN bus driver and CAN bus interface form.
4. a kind of server computer tele-control system based on the CAN bus as claimed in claim 1, it is characterized in that: described ethernet communication module is comprised of ethernet controller and Ethernet interface.
5. a kind of server computer tele-control system based on the CAN bus as claimed in claim 1, it is characterized in that: described usb communication module is comprised of USB controller and USB interface.
6. a kind of server computer tele-control system based on the CAN bus as claimed in claim 1, it is characterized in that: described usb communication module is operated in USB HID pattern, is configured to a USB keyboard equipment.
7. a kind of server computer tele-control system based on the CAN bus as claimed in claim 1, it is characterized in that: described switch control unit links to each other by the switch connecting line with reset button with the switching on and shutting down button of described server computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205905798U CN202886974U (en) | 2012-11-09 | 2012-11-09 | Server computer remote control system based on controller area network (CAN) bus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205905798U CN202886974U (en) | 2012-11-09 | 2012-11-09 | Server computer remote control system based on controller area network (CAN) bus |
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| CN202886974U true CN202886974U (en) | 2013-04-17 |
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| CN2012205905798U Expired - Fee Related CN202886974U (en) | 2012-11-09 | 2012-11-09 | Server computer remote control system based on controller area network (CAN) bus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103412544A (en) * | 2013-08-15 | 2013-11-27 | 上海固泰科技有限公司 | Automation control method based on CAN buses |
| CN104375472A (en) * | 2014-04-25 | 2015-02-25 | 芜湖佳景科技有限公司 | Intelligent switch for heavy truck |
-
2012
- 2012-11-09 CN CN2012205905798U patent/CN202886974U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103412544A (en) * | 2013-08-15 | 2013-11-27 | 上海固泰科技有限公司 | Automation control method based on CAN buses |
| CN104375472A (en) * | 2014-04-25 | 2015-02-25 | 芜湖佳景科技有限公司 | Intelligent switch for heavy truck |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Xie Qiang Document name: Notification of Termination of Patent Right |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20141109 |
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| EXPY | Termination of patent right or utility model |