CN105425780A - Bus fault self-diagnosis device - Google Patents
Bus fault self-diagnosis device Download PDFInfo
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- CN105425780A CN105425780A CN201510980317.0A CN201510980317A CN105425780A CN 105425780 A CN105425780 A CN 105425780A CN 201510980317 A CN201510980317 A CN 201510980317A CN 105425780 A CN105425780 A CN 105425780A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
- G05B23/0213—Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24054—Self diagnostic
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Small-Scale Networks (AREA)
Abstract
The invention relates to the field of bus diagnosis, and particularly relates to a bus fault self-diagnosis device. The bus fault self-diagnosis device comprises multiple controllers which include a master controller, plural slave controllers and an auxiliary controller. Each controller is provided with a self-diagnosis unit. Each controller comprises a control unit which is used for diagnosing connection faults between the controller and a bus. The self-diagnosis unit is used for controlling the on/off state of connection of the controller and the bus according to a control signal transmitted to the self-diagnosis unit by the control unit. The master controller also comprises a first resistor unit. The auxiliary controller comprises a second resistor unit. The beneficial effects of the bus fault self-diagnosis device are that the bus and all the devices arranged on the bus can be comprehensively diagnosed automatically, and the diagnosis result can be displayed via a human-computer interface so that accurate fault information can be provided for equipment early debugging personnel and later equipment maintenance personnel, and debugging maintenance time can be saved.
Description
Technical field
The present invention relates to bus diagnostic field, particularly relate to a kind of bus failure self-diagnosis system.
Background technology
Bus (Bus) transmits the common communication main line of information between each parts, be used for transmitting data and control signal that I/O path technique specifies, have in each commercial Application and use widely, simultaneously, what bus failure was applied along with bus popularizes, its possibility broken down also increase, maintenance difficulty strengthen, need share data message amount also increase etc.-, therefore the fault self-diagnosis technology of bus is arisen at the historic moment, and this also makes the exploitation of bus failure diagnostic system necessitate.
In prior art, the fault self-diagnosis of bus can testbus short trouble, and by detecting the communications status of each controller, determine concrete failed controller, but prior art for connect bus other each devices, to bus itself, the detection then cannot carrying out fault to the fault detect of terminal resistance, so greatly increase the workload of maintainer and the promptness of solution fault after initial stage commissioning staff and fault.
Summary of the invention
Now providing for the problems referred to above can by the communications status between the impedance of each state of testbus and each controller, judge whether bus exists fault, the type of fault and trouble spot and fault is delivered to man-machine interface in real time, auxiliary initial stage commissioning staff and later maintenance personnel solve a kind of bus failure self-diagnosis system of fault.
Concrete technical scheme is:
A kind of bus failure self-diagnosis system, be applicable to the fault diagnosis of bus 4, wherein, comprise some controllers, each described controller is connected with described bus 4;
Described controller comprises: master controller 1, a plurality of described from controller 2 and assistant controller 3;
Corresponding each described controller arranges a self-diagnosis unit switches 103,202,303 respectively;
Each described controller comprises:
Control module 101,201,301, connects described bus 4, for according to the communications status of described controller and described bus 4 or the resistance value of described controller, to the connection diagnosing malfunction between described controller and described bus 4;
Described self-diagnosis unit switches 103,202,303 connects the described control module 101,201,301 in corresponding described controller, for the control signal sent to described self-diagnosis unit switches 103,202,303 according to described control module 101,201,301, control the open and-shut mode that described controller is connected with described bus 4;
Described master controller 1 also comprises:
First resistance unit 102, for providing the impedance of described master controller 1;
Described assistant controller 3 also comprises
One second resistance unit 302, for providing the impedance of described assistant controller 3.
Preferably, above-mentioned bus failure self-diagnosis system, wherein, the described self-diagnosis unit switches 103,202,303 of corresponding each described controller is arranged in corresponding described controller.
Preferably, above-mentioned bus failure self-diagnosis system, wherein, the described self-diagnosis unit switches 103,202,303 of corresponding each described controller is set independently outside the described controller of correspondence.
Preferably, above-mentioned bus failure self-diagnosis system, wherein, in described master controller 1:
Described control module 101 is bi-directionally connected, for obtaining the described resistance value of described first resistance unit 102 with described first resistance unit 102;
Described control module 101 is connected with described self-diagnosis unit switches 103 is unidirectional, for sending described control signal to described self-diagnosis unit switches 103, controls the open and-shut mode that described master controller 1 is connected with described bus 4;
Described control module 101 in described master controller 1 is according to the communications status between described master controller 1 from described bus 4 when different open and-shut mode, and the described resistance value that described control module 101 obtains from described first resistance unit 102, to the connection diagnosing malfunction between described master controller 1 and described bus 4.
Preferably, above-mentioned bus failure self-diagnosis system, wherein, is connected from controller 2 with described bus 4 described in a plurality of successively;
Each described from controller 2:
Described self-diagnosis unit switches 202 is connected with described control module 201 is unidirectional, for sending described control signal to described self-diagnosis unit switches 202, and the open and-shut mode be connected from controller 2 with described bus 4 described in controlling;
Described from the described control module 201 controller 2 according to described from the communications status between controller 2 from described bus 4 when different open and-shut mode, to described from the connection diagnosing malfunction between controller 2 and described bus 4.
Preferably, above-mentioned bus failure self-diagnosis system, wherein, in described assistant controller 3:
Described second resistance unit 302 is bi-directionally connected, for finally obtaining the described resistance value of described control module 301 with described control module 301;
Described self-diagnosis unit switches 303 is connected with described control module 301 is unidirectional, sends described control signal to described self-diagnosis unit switches 303, controls the open and-shut mode that described assistant controller 3 is connected with described bus 4;
Described control module 301 in described assistant controller 3 is according to the communications status between described assistant controller 3 from described bus 4 when different open and-shut mode, and the described resistance value that described control module 301 obtains from described second resistance unit 302, to the connection diagnosing malfunction between described assistant controller 3 and described bus 4.
Preferably, above-mentioned bus failure self-diagnosis system, wherein, is connected described self-diagnosis unit switches 103 between described master controller 1 with described bus 4;
Described master controller 1 sends to described self-diagnosis unit switches 103 the described control signal that described master controller 1 is connected with the opening and closing of described bus 4, and according to the communications status between described master controller 1 from described bus 4 when different open and-shut mode, and the described resistance value of described first resistance unit 102 obtained, to the connection diagnosing malfunction between described master controller 1 and described bus 4.
Preferably, above-mentioned bus failure self-diagnosis system, wherein,
Describedly be connected described self-diagnosis unit switches 202 between controller 2 with described bus 4;
Describedly send the described described control signal be connected with the opening and closing of described bus 4 from controller 2 from controller 2 to described self-diagnosis unit switches 202; And according to described from the communications status between controller 2 from described bus 4 when different open and-shut mode, to described from the connection diagnosing malfunction between controller 2 and described bus 4.
Preferably, above-mentioned bus failure self-diagnosis system, wherein, is connected described self-diagnosis unit switches 303 between described assistant controller 3 with described bus 4;
Described assistant controller 3 sends to described self-diagnosis unit switches 303 the described control signal that described assistant controller 3 is connected with the opening and closing of described bus 4; And according to the communications status between described assistant controller 3 from described bus 4 when different open and-shut mode, and the described resistance value of described second resistance unit 302 obtained, to the connection diagnosing malfunction between described assistant controller 3 and described bus 4.
The invention has the beneficial effects as follows: the technical program can carry out comprehensive diagnostic to each device in bus 4 and bus 4 voluntarily, and diagnostic result is shown by man-machine interface 5, for equipment initial stage commissioning staff and post facility maintainer provide failure message accurately, save the debugging maintenance time.
Accompanying drawing explanation
Fig. 1 is in preferred embodiment of the present invention, a kind of structural representation of bus failure self-diagnosis system;
Fig. 2 is in preferred embodiment of the present invention, a kind of structural representation of bus failure self-diagnosis system.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment only-be the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite of not making creative work, all belongs to the scope of protection of the invention.
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.
Below in conjunction with the drawings and specific embodiments, the invention will be further described, but not as limiting to the invention.
As shown in Figure 1,
A kind of bus failure self-diagnosis system, be applicable to the fault diagnosis of bus 4, wherein, comprise some controllers, each described controller is connected with described bus 4;
Controller comprises: master controller 1, a plurality of from controller 2 and assistant controller 3;
Corresponding each controller arranges a self-diagnosis unit switches 103,202,303 respectively;
Each controller comprises:
Control module 101, control module 201, control module 301, connect bus 4, for according to controller and the communications status of bus 4 or the resistance value of controller, to the connection diagnosing malfunction between controller and bus 4;
Self-diagnosis unit switches 103, self-diagnosis unit switches 202, self-diagnosis unit switches 303 connect control module 101, control module 201, control module 301 in corresponding controller, for the control signal sent to self-diagnosis unit switches 103, self-diagnosis unit switches 202, self-diagnosis unit switches 303 according to control module 101, control module 201, control module 301, control the open and-shut mode that controller is connected with bus 4;
Master controller 1 also comprises:
First resistance unit 102, for providing the impedance of master controller 1;
Assistant controller 3 also comprises
Second resistance unit 302, for providing the impedance of assistant controller 3.
The technical program judges whether the device of each node in bus 4 and bus 4 exists fault, and it can solve in prior art cannot carry out the shortcoming of total failure detection to each device nodes in bus 4; By the control signal that controller sends to the self-diagnosis unit switches 103 in each self-controller, self-diagnosis unit switches 202, self-diagnosis unit switches 303, control the connection status of each controller and bus, the communication received according to different connection status-number, and obtain the resistance value of the controller under different connection status, judge whether corresponding controller or internal components exist fault
As follows by the determination methods of this device to the fault of bus and each controller:
Master controller 1 and bus 4 are disconnected, the resistance value of its bus 4 impedance tested by master controller 1, if resistance is 120 Ω, master controller 1 communicates normally, on the contrary master controller 1 or its terminal resistance fault;
Be connected with bus 4 by master controller 1, other all controller and bus 4 disconnect, if bus 4 impedance is 120 Ω and bus 4 pairs of ground levels meet designing requirement, bus 4 circuit is normal, on the contrary bus 4 line fault;
Be connected with bus 4 by assistant controller 3, allly disconnect from controller 2 and bus 4, if bus 4 impedance is 60 Ω, assistant controller 3 terminal resistance is normal, on the contrary assistant controller 3 terminal resistance fault; If assistant controller 3 communicates with master controller 1 normally, assistant controller 3 is normal, on the contrary assistant controller 3 fault;
Will from controller 2_1-be connected with bus 4 one by one from controller 2_N, if master controller 1 is with respectively normal from communicate, its from controller 2 normally, instead this its from controller 2 fault.
In present pre-ferred embodiments, the first resistance unit 102 comprises one 120 Ohmages.
In present pre-ferred embodiments, the second resistance unit 302 comprises one 120 Ohmages.
In present pre-ferred embodiments, corresponding each self-diagnosis unit switches 103, self-diagnosis unit switches 202, self-diagnosis unit switches 303 are arranged at corresponding in controller 2 device.
In present pre-ferred embodiments, corresponding each self-diagnosis unit switches 103, self-diagnosis unit switches 202, self-diagnosis unit switches 303 be set independently in correspondence from controller 2 device.
Self-diagnosis unit switches 103, self-diagnosis unit switches 202, self-diagnosis unit switches 303 are except being arranged on each controller inside, it is outside that each controller can also be set, connect with corresponding controller, also can reach the effect to device self diagnosis each in bus 4 equally, and install in setting more flexible.
In present pre-ferred embodiments, in master controller 1:
Control module 101 and the first resistance unit 102 are bi-directionally connected, for obtaining the resistance value of the first resistance unit 102;
Control module 101 is connected with self-diagnosis unit switches 103 is unidirectional, for transmitting control signal to self-diagnosis unit switches 103, controls the open and-shut mode that master controller 1 is connected with bus 4;
Control module 101 in master controller 1 is according to the communications status between master controller 1 from bus 4 when different open and-shut mode, and the resistance value that control module 101 obtains from the first resistance unit 102, to the connection diagnosing malfunction between master controller 1 and bus 4.
In present pre-ferred embodiments, above-mentioned bus failure self-diagnosis system, wherein, a plurality of from controller 2, be connected successively with bus 4;
Each from controller 2:
Self-diagnosis unit switches 202 is connected with control module 201 is unidirectional, for transmitting control signal to self-diagnosis unit switches 202, controls the open and-shut mode be connected with bus 4 from controller 2;
From the control module 201 controller 2 according to from the communications status between controller 2 from bus 4 when different open and-shut mode, to from the connection diagnosing malfunction between controller 2 and bus 4.
In present pre-ferred embodiments, above-mentioned bus failure self-diagnosis system, wherein, in assistant controller 3:
Second resistance unit 302 is bi-directionally connected, for finally obtaining the resistance value of control module 301 with control module 301;
Self-diagnosis unit switches 303 is connected with control module 301 is unidirectional, transmits control signal to self-diagnosis unit switches 303, controls the open and-shut mode that assistant controller 3 is connected with bus 4;
Control module 301 in assistant controller 3 is according to the communications status between assistant controller 3 from bus 4 when different open and-shut mode, and the resistance value that control module 301 obtains from the second resistance unit 302, to the connection diagnosing malfunction between assistant controller 3 and bus 4.
As shown in Figure 2,
In present pre-ferred embodiments, also comprise the connected mode between a kind of each device;
Self-diagnosis unit switches 103 is connected between master controller 1 with bus 4;
Master controller 1 sends to self-diagnosis unit switches 103 control signal that master controller 1 is connected with bus 4 opening and closing, and according to the communications status between master controller 1 from bus 4 when different open and-shut mode, and the resistance value of the first resistance unit 102 obtained, to the connection diagnosing malfunction between master controller 1 and bus 4.
Be connected with self-diagnosis unit switches 103 in master controller 1 outside, make master controller 1 to the connection diagnosing malfunction of master controller and bus, and diagnostic result can be obtained, and connect flexible.
On the basis of technique scheme, further,
Self-diagnosis unit switches 202 is connected between controller 2 with bus 4;
The control signal be connected with bus 4 opening and closing from controller 2 is sent from controller 2 to self-diagnosis unit switches 202; And according to from the communications status between controller 2 from bus 4 when different open and-shut mode, to from the connection diagnosing malfunction between controller 2 and bus 4.
Be connected on the basis of master controller 1 outside self-diagnosis unit switches 103, self-diagnosis unit switches 202 is connected to each outside from controller 2, make too to the connection diagnosing malfunction from controller and bus, and diagnostic result to be obtained from controller 2, and connect flexibly.
On the basis of technique scheme, further,
Self-diagnosis unit switches 303 is connected between assistant controller 3 with bus 4;
Assistant controller 3 sends to self-diagnosis unit switches 303 control signal that assistant controller 3 is connected with bus 4 opening and closing; And according to the communications status between assistant controller 3 from bus 4 when different open and-shut mode, and the resistance value of the second resistance unit 302 obtained, to the connection diagnosing malfunction between assistant controller 3 and bus 4.
Be connected on the basis of master controller 1 outside self-diagnosis unit switches 103, auxiliary self-diagnosis unit switches 303 is connected to the outside of assistant controller 3, make assistant controller 3 to the connection diagnosing malfunction of assistant controller and bus, and diagnostic result can be obtained too, and connect flexibly.
In present pre-ferred embodiments, can also comprise:
Man-machine interface 5, connecting master controller 1, for receiving the judged result of master controller 1, and showing.
Controller and the failure message of all proper communications detected by master controller 1 are sent in display screen.
This bus 4 fault self-diagnosis system is applicable to the communications such as CAN, CANopen, RS485, Profibus, DeviceNet, Modbus.
The foregoing is only preferred embodiment of the present invention; not thereby embodiments of the present invention and protection domain is limited; to those skilled in the art; should recognize and all should be included in the scheme that equivalent replacement done by all utilizations instructions of the present invention and diagramatic content and apparent change obtain in protection scope of the present invention.
Claims (9)
1. a bus failure self-diagnosis system, is applicable to the fault diagnosis of bus (4), it is characterized in that, comprises some controllers, and each described controller is connected with described bus (4);
Described controller comprises: master controller (1), a plurality of described from controller (2) and assistant controller (3);
Corresponding each described controller arranges a self-diagnosis unit switches (103,202,303) respectively;
Each described controller comprises:
Control module (101,201,301), for according to described controller and the communications status of described bus (4) or the resistance value of described controller, to the connection diagnosing malfunction between described controller and described bus (4);
Described self-diagnosis unit switches (103,202,303) connects the described control module (101,201,301) in corresponding described controller, for the control signal sent to described self-diagnosis unit switches (103,202,303) according to described control module (101,201,301), control the open and-shut mode that described controller is connected with described bus (4);
Described master controller (1) also comprises:
First resistance unit (102), for providing the impedance of described master controller (1);
Described assistant controller (3) also comprises
Second resistance unit (302), for providing the impedance of described assistant controller (3).
2. bus failure self-diagnosis system as claimed in claim 1, is characterized in that, the described self-diagnosis unit switches (103,202,303) of corresponding each described controller is arranged in corresponding described controller.
3. bus failure self-diagnosis system as claimed in claim 1, is characterized in that, the described self-diagnosis unit switches (103,202,303) of corresponding each described controller is set independently outside the described controller of correspondence.
4. bus failure self-diagnosis system as claimed in claim 2, is characterized in that, in described master controller (1):
Described control module (101) and described first resistance unit (102) are bi-directionally connected, for obtaining the described resistance value of described first resistance unit (102);
Described control module (101) is connected with described self-diagnosis unit switches (103) is unidirectional, for sending described control signal to described self-diagnosis unit switches (103), control the open and-shut mode that described master controller (1) is connected with described bus (4);
Described control module (101) in described master controller (1) is according to the communications status between described master controller (1) from described bus (4) when different open and-shut mode, and the described resistance value that described control module (101) obtains from described first resistance unit (102), to the connection diagnosing malfunction between described master controller (1) and described bus (4).
5. bus failure self-diagnosis system as claimed in claim 2, is characterized in that, is connected successively described in a plurality of from controller (2) with described bus (4);
Each described from controller (2):
Described self-diagnosis unit switches (202) is connected with described control module (201) is unidirectional, for sending described control signal to described self-diagnosis unit switches (202), the open and-shut mode be connected from controller (2) with described bus (4) described in controlling;
Described from the described control module (201) controller (2) according to described from the communications status between controller (2) from described bus (4) when different open and-shut mode, to described from the connection diagnosing malfunction between controller (2) and described bus (4).
6. bus failure self-diagnosis system as claimed in claim 2, is characterized in that,
In described assistant controller (3):
Described second resistance unit (302) and described control module (301) are bi-directionally connected, for finally obtaining the described resistance value of described control module (301);
Described self-diagnosis unit switches (303) is connected with described control module (301) is unidirectional, send described control signal to described self-diagnosis unit switches (303), control the open and-shut mode that described assistant controller (3) is connected with described bus (4);
Described control module (301) in described assistant controller (3) is according to the communications status between described assistant controller (3) from described bus (4) when different open and-shut mode, and the described resistance value that described control module (301) obtains from described second resistance unit (302), to the connection diagnosing malfunction between described assistant controller (3) and described bus (4).
7. bus failure self-diagnosis system as claimed in claim 3, is characterized in that,
Described self-diagnosis unit switches (103) is connected between described master controller (1) with described bus (4);
Described master controller (1) sends to described self-diagnosis unit switches (103) the described control signal that described master controller (1) is connected with described bus (4) opening and closing, and according to the communications status between described master controller (1) from described bus (4) when different open and-shut mode, and the described resistance value of described first resistance unit (102) obtained, to the connection diagnosing malfunction between described master controller (1) and described bus (4).
8. bus failure self-diagnosis system as claimed in claim 3, is characterized in that,
Describedly be connected described self-diagnosis unit switches (202) between controller (2) with described bus (4);
The described described control signal be connected from controller (2) with described bus (4) opening and closing described in transmission from controller (2) to described self-diagnosis unit switches (202); And according to described from the communications status between controller (2) from described bus (4) when different open and-shut mode, to described from the connection diagnosing malfunction between controller (2) and described bus (4).
9. bus failure self-diagnosis system as claimed in claim 3, is characterized in that,
Described self-diagnosis unit switches (303) is connected between described assistant controller (3) with described bus (4);
Described assistant controller (3) sends to described self-diagnosis unit switches (303) the described control signal that described assistant controller (3) is connected with described bus (4) opening and closing; And according to the communications status between described assistant controller (3) from described bus (4) when different open and-shut mode, and the described resistance value of described second resistance unit (302) obtained, to the connection diagnosing malfunction between described assistant controller (3) and described bus (4).
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| CN201510980317.0A CN105425780B (en) | 2015-12-23 | 2015-12-23 | A kind of bus failure self-diagnosis system |
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| CN201510980317.0A CN105425780B (en) | 2015-12-23 | 2015-12-23 | A kind of bus failure self-diagnosis system |
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| CN105425780A true CN105425780A (en) | 2016-03-23 |
| CN105425780B CN105425780B (en) | 2018-05-15 |
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| CN107092218A (en) * | 2017-07-03 | 2017-08-25 | 河南联纵消防科技有限公司 | Communication bus is nonpolarity conversion equipment and its implementation |
| CN112953763A (en) * | 2021-01-29 | 2021-06-11 | 珠海云洲智能科技股份有限公司 | Fault detection method and device based on unmanned ship system and terminal |
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| CN105425780B (en) | 2018-05-15 |
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