CN105629797A - Output control method and system for N output channels - Google Patents
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Abstract
The invention discloses an output control method and system for N output channels, wherein N is not smaller than 2. The method includes the following steps that: channel units in on states receive data signals outputted by corresponding control units and perform digital-to-analog conversion on the data signals so as to obtain analog signals, and send the analog signals to a diagnostic unit; the diagnostic unit performs acquisition processing and analog-to-digital conversion processing on the analog signals and sends processed signals to voting units; the voting units obtain comparison results of corresponding output channels according to the digital signals sent by the voting units and the output signals sent by the corresponding control units, and send the comparison results to the other output channels separately; voting results can be obtained according to the comparison results of the N output channels; each channel unit controls the on-off of the corresponding channel unit according to the voting result of the output channel where the corresponding channel unit is located, obtained priority information and received output state information of the output channels. The method has the advantages of high accuracy, low cost and high switching speed of the output channels.
Description
Technical field
The present invention relates to Data Transmission Controlling field, particularly relate to a kind of output control method for N number of output channel and system.
Background technology
In the security system, often require that equipment has high reliability and high availability, namely need the IO channel of equipment to have high reliability. The method of a lot of data processing can be used data to be put to the vote for input passage, but need to use hardware means of voting to carry out exporting control under normal circumstances for output channel. Further, digital output can use peripheral components to take out voting logic easily as required, but analog output to be realized identical function has just been difficult to.
Output control method of the prior art adopts three output channels to realize, three output channel redundancies each other, and each output channel is by CPU, channel unit and diagnosis unit composition. First output channel is sorted by the method, and the more little priority of sequence number is more high; CPU receives to export after data and data is calculated, and according to priority order from high to low, it is determined that an output channel carrys out output current value, and all the other output channels will no longer export; The current value that oneself exports is diagnosed by this output channel by diagnosis unit, if current value exceeds limit of error, then turns off this output channel and exports, and the CPU notifying other output channels carries out electric current output; Otherwise, this output channel holding current exports state.
But the method needs each output channel to be all equipped with a diagnosis unit, cost height; Whether and the output of self just diagnosed by each output channel respectively, and final output cannot be diagnosed correct, accuracy is low; Simultaneously owing to the diagnosis of each output channel is independent, need once there be output channel fault to carry out passage bridge, need the signal that waiting for CPU is transmitted, namely the communication cycle relying on CPU is needed when the diagnostic result of three output channels carries out mutual, therefore cause cannot making fast between output channel switching, thus cause on-the-spot fluctuation of current to become big, even can reach hundred Milliseconds.
Therefore, how to provide that a kind of cost is low, the output control method for N number of output channel that between accuracy height and output channel, switch speed is fast and system be the problem that those skilled in the art need to solve at present.
Summary of the invention
It is an object of the invention to provide a kind of output control method for N number of output channel and system, diagnose whether the output signal that each output channel is final just can accurately be diagnosed by unit by means of only one, the accuracy height of diagnosis, reduces cost; And not needing the signal carried out between CPU mutual, the switch speed of output channel is fast.
For solving the problems of the technologies described above, the present invention provides a kind of output control method for N number of output channel, comprising:
Channel unit in output channel described in each obtains output status information and the priority information of self place output channel respectively, and by channel unit that the output status information of self is sent in the output channel of all the other except self; Wherein, N is not less than 2;
Channel unit in output channel described in each receives the data signal that corresponding control unit exports respectively, and described data signal is carried out respectively digital-to-analog conversion process and obtains analog signals, the channel unit in output channel described in each judges whether the analog signals of correspondence is sent to diagnosis unit according to the open and-shut mode of self;
The analog signals received is carried out acquisition process by described diagnosis unit, and the analog signals collected is carried out analog-to-digital conversion process; By the voting unit that the numerary signal after process is sent in output channel described in each respectively;
The output signal that voting unit in output channel described in each sends according to the control unit of correspondence and the numerary signal that described diagnosis unit sends obtain the comparative result of output channel described in each, and described comparative result is sent to the output channel of all the other except self;
Voting unit in output channel described in each obtains the voting result of output channel described in each respectively according to the comparative result of N number of described output channel, and described voting result is sent to corresponding channel unit;
Channel unit in output channel described in each respectively output status information according to the priority information of the output channel at self place and the voting result received, output channel described in each control the opening and closing of self.
Preferably, the method also comprises:
Voting unit in output channel described in each obtains the priority information of self place output channel respectively, and selects an output channel as main output channel according to described priority information;
The channel unit that voting unit in described main output channel sends in start signal to described main output channel controls it and opens, and the voting unit in all the other output channels except main output channel sends closedown signal respectively, and to corresponding channel unit, to control, it is closed.
Preferably, the process of the voting unit in described output channel described in each sends according to the control unit of correspondence output signal and the comparative result that the numerary signal that described diagnosis unit sends obtains output channel described in each is specially:
The numerary signal that the output signal sent by control unit in output channel described in each sends with described diagnosis unit respectively compares, and obtains the signal difference of output channel described in each;
Judge whether the signal difference of output channel described in each is greater than predetermined threshold value respectively, if it does, the comparative result of output channel corresponding to described signal difference is mistake, otherwise, the comparative result of the output channel that described signal difference is corresponding is correct.
Preferably, N gets 3.
Preferably, the voting unit in described output channel described in each obtains the voting result of output channel described in each respectively according to the comparative result of N number of described output channel, and described voting result is sent to corresponding channel unit; The process of the opening and closing that the channel unit in output channel described in each controls according to the output status information of the priority information of the output channel at self place and the voting result received, output channel described in each respectively is specially:
The comparative result of three described output channels is carried out three and gets two voting process by voting unit in output channel described in each respectively, when being correct when there being the comparative result of two or more output channel, described voting result is correct, and described voting result can indicate the output channel of mistake; When there being the comparative result of two or more output channel for mistake, described voting result is mistake;
When described voting result is correct, and when indicating a wrong output channel, whether the channel unit that the output status information according to output channel described in each judges in the output channel of described mistake exports, if, then close the channel unit in the output channel of described mistake, and open the channel unit in the output channel that in all the other output channels except the output channel of described mistake, priority is higher; Otherwise, keep the open and-shut mode of the channel unit in three described output channels constant;
When described voting result is correct, and when representing the output channel not having mistake, keep the open and-shut mode of the channel unit in three described output channels constant;
When described voting result is mistake, close the channel unit in three described output channels.
Preferably, the method also comprises:
Described voting result is sent to controlling alarm unit;
When described voting result is mistake or described voting result shows a wrong output channel, described controlling alarm unit sends guard signal and reports to the police to warning device.
For solving the problems of the technologies described above, present invention also offers a kind of output control system for N number of output channel, comprising:
Channel unit in output channel described in each, for obtaining output status information and the priority information of self place output channel respectively, and by channel unit that the output status information of self is sent in the output channel of all the other except self; Wherein, N is not less than 2; Receive the data signal that corresponding control unit exports respectively, and described data signal is carried out respectively digital-to-analog conversion process and obtains analog signals, the channel unit in output channel described in each judges whether the analog signals of correspondence is sent to diagnosis unit according to the open and-shut mode of self; Output status information according to the priority information of the output channel at self place and the voting result received, output channel described in each controls the opening and closing of self respectively;
Described diagnosis unit, for the analog signals received is carried out acquisition process, and carries out analog-to-digital conversion process to the analog signals collected; By the voting unit that the numerary signal after process is sent in output channel described in each respectively;
Voting unit in output channel described in each, the numerary signal that the output signal sent for the control unit according to correspondence and described diagnosis unit send obtains the comparative result of output channel described in each, and described comparative result is sent to the output channel of all the other except self; Obtain the voting result of output channel described in each respectively according to the comparative result of N number of described output channel, and described voting result is sent to corresponding channel unit.
Preferably, N gets 3.
Preferably, adopt wireless connections between the voting unit in output channel described in each or connected by bus.
The present invention provides a kind of output control method for N number of output channel and system, diagnosis unit in the present invention can receive the analog signals being in the channel unit of opened condition in each output channel and sending, therefore whether the output signal that each output channel is final accurately can be diagnosed, the accuracy height of diagnosis; And the present invention can realize the diagnostic functions of N number of output channel by means of only a diagnosis unit, reduce cost; In addition, the channel unit in the present invention can directly according to the voting result of self place output channel, export status information and priority information controls self opening and closing. Therefore not needing the signal carried out between control unit (CPU) mutual, the switch speed of output channel is fast.
Accompanying drawing explanation
In order to the technical scheme being illustrated more clearly in the embodiment of the present invention, it is briefly described to the accompanying drawing used required in prior art and embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schema of the process of a kind of output control method for N number of output channel provided by the invention;
Fig. 2 is the schema of another kind provided by the invention for the process of the output control method of N number of output channel;
Fig. 3 is the structural representation of a kind of output control system for N number of output channel provided by the invention.
Embodiment
The core of the present invention is to provide a kind of output control method for N number of output channel and system, diagnoses whether the output signal that each output channel is final just can accurately be diagnosed by unit by means of only one, and the accuracy height of diagnosis, reduces cost; And not needing the signal carried out between CPU mutual, the switch speed of output channel is fast.
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments. Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment one
The present invention provides a kind of output control method for N number of output channel, shown in Figure 1, and Fig. 1 is the schema of the process of a kind of output control method for N number of output channel provided by the invention; The method comprises:
Step s101: the channel unit in each output channel obtains output status information and the priority information of self place output channel respectively, and by channel unit that the output status information of self is sent in the output channel of all the other except self; Wherein, N is not less than 2;
Step s102: the channel unit in each output channel receives the data signal that corresponding control unit exports respectively, and data signal is carried out respectively digital-to-analog conversion process and obtains analog signals, the channel unit in each output channel judges whether the analog signals of correspondence is sent to diagnosis unit according to the open and-shut mode of self;
Step s103: the analog signals received is carried out acquisition process by diagnosis unit, and the analog signals collected is carried out analog-to-digital conversion process; By the voting unit that the numerary signal after process is sent in each output channel respectively;
Step s104: the output signal that the voting unit in each output channel sends according to the control unit of correspondence and the numerary signal that diagnosis unit sends obtain the comparative result of each output channel, and comparative result is sent to the output channel of all the other except self;
Step s105: the voting unit in each output channel obtains the voting result of each output channel respectively according to the comparative result of N number of output channel, and voting result is sent to corresponding channel unit;
Step s106: the channel unit in each output channel respectively output status information according to the priority information of the output channel at self place and the voting result received, each output channel control the opening and closing of self.
The present invention provides a kind of output control method for N number of output channel, diagnosis unit in the present invention can receive the analog signals being in the channel unit of opened condition in each output channel and sending, therefore whether the output signal that each output channel is final accurately can be diagnosed, the accuracy height of diagnosis; And the present invention can realize the diagnostic functions of N number of output channel by means of only a diagnosis unit, reduce cost; In addition, the channel unit in the present invention can directly according to the voting result of self place output channel, export status information and priority information controls self opening and closing. Therefore not needing the signal carried out between control unit (CPU) mutual, the switch speed of output channel is fast.
Embodiment two
Present invention also offers the output control method of another kind for N number of output channel, shown in Figure 2, Fig. 2 is the schema of another kind provided by the invention for the process of the output control method of N number of output channel; The method comprises:
Step s201: the voting unit in each output channel obtains the priority information of self place output channel respectively, and select an output channel as main output channel according to priority information;
Determine it should be appreciated that the order of the priority of each output channel is the hardware being positioned at by output channel, namely when each output channel position after setting completed, the order of the priority of himself is also determined thereupon. Such as, the priority (namely priority information can refer to number information) that can represent each output channel by each output channel being numbered, number more little priority more high, select the highest output channel of priority as main output channel. Certainly, to whether adopting numbering form, to represent, priority does not limit in the present invention.
Step s202: the channel unit that the voting unit in main output channel sends in start signal to main output channel controls it and opens, the voting unit in all the other output channels except main output channel sends closedown signal respectively, and to corresponding channel unit, to control, it is closed;
It should be appreciated that method provided by the invention has and only has the channel unit in an output channel to output signal.
Step s203: the channel unit in each output channel obtains output status information and the priority information of self place output channel respectively, and by channel unit that the output status information of self is sent in the output channel of all the other except self; Wherein, N gets 3;
Wherein, output status information here refers to the information whether channel unit that can represent in output channel is exporting.
Step s204: the channel unit in main output channel receives the data signal that corresponding control unit exports, and undertaken data signal being sent to diagnosis unit after digital-to-analog conversion process obtains analog signals;
Step s205: the analog signals received is carried out acquisition process by diagnosis unit, and the analog signals collected is carried out analog-to-digital conversion process; By the voting unit that the numerary signal after process is sent in each output channel respectively;
It thus is seen that the output of analog signals can be diagnosed and control by the present invention, wherein, analog signals here can be electric current signal, and certainly, this is not particularly limited by the present invention; And N number of output channel adopts same diagnosis unit to carry out acquisition process, it is possible to ensure the consistence of the signal that the voting unit of each output channel receives.
Step s206: the numerary signal that the output signal sent by the control unit in each output channel sends with diagnosis unit respectively compares, and obtains the signal difference of each output channel;
It is understandable that, control unit needs to be converted to the data layout that channel unit can identify be sent to channel unit again by exporting data, with reason, control unit needs to be converted to the voting data layout that can identify of unit be sent to voting unit again by exporting data.
Step s207: judge whether the signal difference of each output channel is greater than predetermined threshold value respectively, if it does, the comparative result of output channel corresponding to signal difference is mistake, otherwise, the comparative result of the output channel that signal difference is corresponding is correct;
Certainly, the concrete numerical value of predetermined threshold value is not limited by the present invention, and staff can according to practical situation sets itself.
Step s208: comparative result is sent to the output channel of all the other except self; Wherein, N gets 3;
Step s209: the comparative result of three output channels is carried out three and gets two voting process by voting unit in each output channel respectively, when being correct when there being the comparative result of two or more output channel, voting result is correct, and voting result can indicate the output channel of mistake; When there being the comparative result of two or more output channel for mistake, voting result is mistake;
Step s210: when voting result is correct, and when indicating a wrong output channel, whether the channel unit that the output status information according to each output channel judges in the output channel of mistake exports, if, then close the channel unit in the output channel of mistake, and open the channel unit in the output channel that in all the other output channels except the output channel except mistake, priority is higher; Otherwise, keep the open and-shut mode of the channel unit in three output channels constant;
Step s211: when voting result is correct, and when representing the output channel not having mistake, keep the open and-shut mode of the channel unit in three output channels constant;
Step s212: when voting result is mistake, close the channel unit in three output channels.
It is understandable that, the numerary signal deciding by vote the diagnosis unit transmission that unit receives due to each is identical, the output signal that the control unit of the correspondence that each voting unit receives sends also should be identical in theory, therefore, the comparative result of each output channel should be identical, if it is different, then show to have the control unit fault in output channel or voting cell failure, such as, if the comparative result having two output channels is correct, and the comparative result having an output channel is mistake, then show that comparative result is the control unit fault in the output channel of mistake or voting cell failure.
Wherein, three in the present invention gets two voting process and 3OO2 logical process, and in this process, when there is the situation of two and above mistake, voting result is mistake. When the comparative result that appearance two is wrong, show that fault (control unit fault or voting cell failure) all occurs two output channels that these two comparative results are corresponding; When the comparative result that appearance three is wrong, show that fault all occurs three output channels that these three comparative results are corresponding, or diagnosis cell failure. Therefore when voting result mistake, should all close the channel unit in three output channels, stop exporting.
In addition, adopting three output channels to compare and only adopt two output channels, redundancy option is more, therefore can reduce the error of the final output signal caused due to output channel fault; And adopting four output channels, structure is too complicated, and adds cost.
Certainly, the concrete numerical value of N is not particularly limited to by the present invention, when N selects other numerical value, the logic of corresponding voting process also should change accordingly (as N=3, the logic of voting process be three get two or 3OO2).
As preferably, the method also comprises:
Voting result is sent to controlling alarm unit;
When voting result is mistake or voting result shows a wrong output channel, controlling alarm unit sends guard signal and reports to the police to warning device.
Wherein, controlling alarm unit here can be FPGA, and warning device can be indicating meter or hummer, and the type of controlling alarm unit and warning device is not all particularly limited to by the present invention.
Compared with embodiment one, the comparative result of each output channel has been carried out three and has got two voting process by the present invention, can reduce the error of the final output signal caused when control unit fault or voting cell failure, further increase the accuracy of output; And the present embodiment when voting result show mistake output channel time reporting to the police, it is possible to staff is found in time, and has there is fault in output channel, thus carries out failure testing.
Present invention also offers a kind of output control system for N number of output channel, comprising:
Channel unit 12 in each output channel, for obtaining output status information and the priority information of self place output channel respectively, and the channel unit 12 that the output status information of self is sent in the output channel of all the other except self; Wherein, N is not less than 2; Receive the data signal that corresponding control unit 11 exports respectively, and data signal is carried out respectively digital-to-analog conversion process and obtains analog signals, the channel unit 12 in each output channel judges whether according to the open and-shut mode of self analog signals of correspondence is sent to diagnosis unit 14; Output status information according to the priority information of the output channel at self place and the voting result received, each output channel controls the opening and closing of self respectively;
Diagnosis unit 14, for the analog signals received is carried out acquisition process, and carries out analog-to-digital conversion process to the analog signals collected; By the voting unit 13 that the numerary signal after process is sent in each output channel respectively;
Voting unit 13 in each output channel, the numerary signal that the output signal sent for the control unit 11 according to correspondence and diagnosis unit 14 send obtains the comparative result of each output channel, and comparative result is sent to the output channel of all the other except self; Obtain the voting result of each output channel respectively according to the comparative result of N number of output channel, and voting result is sent to corresponding channel unit 12.
Wherein, voting unit 13 here comprises comparer and voting machine, and when N gets 3, the type of voting machine is three get two voting machines. Certainly, the present invention does not limit the type of voting unit 13, and voting unit 13 can be CPU or logical device or hardware circuit, as long as the voting unit 13 that can realize above-mentioned functions is all within protection scope of the present invention.
As preferably, N gets 3.
Certainly, the concrete numerical value of N is not limited by the present invention.
In addition, adopt wireless connections between the voting unit 13 in each output channel or connected by bus.
As preferably, the present invention also comprises:
Controlling alarm unit, for receiving voting result, when voting result is mistake or voting result shows a wrong output channel, sends guard signal and reports to the police to warning device.
Wherein, controlling alarm unit here can be FPGA, and warning device can be indicating meter or hummer, and the type of controlling alarm unit and warning device is not particularly limited to by the present invention.
The present invention provides a kind of output control system for N number of output channel, diagnosis unit in the present invention can receive the analog signals being in the channel unit of opened condition in each output channel and sending, therefore whether the output signal that each output channel is final accurately can be diagnosed, the accuracy height of diagnosis; And the present invention can realize the diagnostic functions of N number of output channel by means of only a diagnosis unit, reduce cost; In addition, the channel unit in the present invention can directly according to the voting result of self place output channel, export status information and priority information controls self opening and closing. Therefore not needing the signal carried out between control unit (CPU) mutual, the switch speed of output channel is fast.
It should be noted that, in this manual, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, so that comprise the process of a series of key element, method, article or equipment not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise the key element intrinsic for this kind of process, method, article or equipment. When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are enable to realize or use the present invention. To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments. Therefore, the present invention can not be limited in these embodiments shown in this article, but be met the widest scope consistent with principle disclosed herein and features of novelty.
Claims (9)
1. the output control method for N number of output channel, it is characterised in that, comprising:
Channel unit in output channel described in each obtains output status information and the priority information of self place output channel respectively, and by channel unit that the output status information of self is sent in the output channel of all the other except self; Wherein, N is not less than 2;
Channel unit in output channel described in each receives the data signal that corresponding control unit exports respectively, and described data signal is carried out respectively digital-to-analog conversion process and obtains analog signals, the channel unit in output channel described in each judges whether the analog signals of correspondence is sent to diagnosis unit according to the open and-shut mode of self;
The analog signals received is carried out acquisition process by described diagnosis unit, and the analog signals collected is carried out analog-to-digital conversion process; By the voting unit that the numerary signal after process is sent in output channel described in each respectively;
The output signal that voting unit in output channel described in each sends according to the control unit of correspondence and the numerary signal that described diagnosis unit sends obtain the comparative result of output channel described in each, and described comparative result is sent to the output channel of all the other except self;
Voting unit in output channel described in each obtains the voting result of output channel described in each respectively according to the comparative result of N number of described output channel, and described voting result is sent to corresponding channel unit;
Channel unit in output channel described in each respectively output status information according to the priority information of the output channel at self place and the voting result received, output channel described in each control the opening and closing of self.
2. method according to claim 1, it is characterised in that, the method also comprises:
Voting unit in output channel described in each obtains the priority information of self place output channel respectively, and selects an output channel as main output channel according to described priority information;
The channel unit that voting unit in described main output channel sends in start signal to described main output channel controls it and opens, and the voting unit in all the other output channels except main output channel sends closedown signal respectively, and to corresponding channel unit, to control, it is closed.
3. method according to claim 2, it is characterized in that, the process of the output signal that the voting unit in described output channel described in each sends according to the control unit of correspondence and the comparative result that the numerary signal that described diagnosis unit sends obtains output channel described in each is specially:
The numerary signal that the output signal sent by control unit in output channel described in each sends with described diagnosis unit respectively compares, and obtains the signal difference of output channel described in each;
Judge whether the signal difference of output channel described in each is greater than predetermined threshold value respectively, if it does, the comparative result of output channel corresponding to described signal difference is mistake, otherwise, the comparative result of the output channel that described signal difference is corresponding is correct.
4. method according to claim 3, it is characterised in that, N gets 3.
5. method according to claim 4, it is characterized in that, voting unit in described output channel described in each obtains the voting result of output channel described in each respectively according to the comparative result of N number of described output channel, and described voting result is sent to corresponding channel unit; The process of the opening and closing that the channel unit in output channel described in each controls self according to the output status information of the priority information of the output channel at self place and the voting result received, output channel described in each respectively is specially:
The comparative result of three described output channels is carried out three and gets two voting process by voting unit in output channel described in each respectively, when being correct when there being the comparative result of two or more output channel, described voting result is correct, and described voting result can indicate the output channel of mistake; When there being the comparative result of two or more output channel for mistake, described voting result is mistake;
When described voting result is correct, and when indicating a wrong output channel, whether the channel unit that the output status information according to output channel described in each judges in the output channel of described mistake exports, if, then close the channel unit in the output channel of described mistake, and open the channel unit in the output channel that in all the other output channels except the output channel of described mistake, priority is higher; Otherwise, keep the open and-shut mode of the channel unit in three described output channels constant;
When described voting result is correct, and when representing the output channel not having mistake, keep the open and-shut mode of the channel unit in three described output channels constant;
When described voting result is mistake, close the channel unit in three described output channels.
6. method according to claim 5, it is characterised in that, the method also comprises:
Described voting result is sent to controlling alarm unit;
When described voting result is mistake or described voting result shows a wrong output channel, described controlling alarm unit sends guard signal and reports to the police to warning device.
7. the output control system for N number of output channel, it is characterised in that, comprising:
Channel unit in output channel described in each, for obtaining output status information and the priority information of self place output channel respectively, and by channel unit that the output status information of self is sent in the output channel of all the other except self; Wherein, N is not less than 2; Receive the data signal that corresponding control unit exports respectively, and described data signal is carried out respectively digital-to-analog conversion process and obtains analog signals, the channel unit in output channel described in each judges whether the analog signals of correspondence is sent to diagnosis unit according to the open and-shut mode of self; Output status information according to the priority information of the output channel at self place and the voting result received, output channel described in each controls the opening and closing of self respectively;
Described diagnosis unit, for the analog signals received is carried out acquisition process, and carries out analog-to-digital conversion process to the analog signals collected; By the voting unit that the numerary signal after process is sent in output channel described in each respectively;
Voting unit in output channel described in each, the numerary signal that the output signal sent for the control unit according to correspondence and described diagnosis unit send obtains the comparative result of output channel described in each, and described comparative result is sent to the output channel of all the other except self; Obtain the voting result of output channel described in each respectively according to the comparative result of N number of described output channel, and described voting result is sent to corresponding channel unit.
8. system according to claim 7, it is characterised in that, N gets 3.
9. system according to claim 7, it is characterised in that, adopt wireless connections between the voting unit in output channel described in each or connected by bus.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106094742A (en) * | 2016-05-31 | 2016-11-09 | 苏州时代华理电气有限公司 | A kind of safety instrument control system |
| CN107908100A (en) * | 2017-11-17 | 2018-04-13 | 浙江中控技术股份有限公司 | A kind of passage output system of selection and device based on triple modular redundant communication |
| CN110376931A (en) * | 2018-04-13 | 2019-10-25 | 沈阳中科博微科技股份有限公司 | A kind of functional safety current output module of high diagnosis coverage rate |
| CN109839918A (en) * | 2019-03-06 | 2019-06-04 | 中国核动力研究设计院 | A kind of self-diagnosing method based on FPGA |
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| CN110134552A (en) * | 2019-05-09 | 2019-08-16 | 中国航空工业集团公司西安航空计算技术研究所 | A kind of fault-tolerance approach based on empirical learning |
| CN112506830A (en) * | 2020-11-27 | 2021-03-16 | 山东航天电子技术研究所 | Redundancy synchronous communication method for multi-path transmission data bus |
| CN112526979A (en) * | 2020-12-16 | 2021-03-19 | 中国兵器装备集团自动化研究所 | Serial communication interface diagnosis system and method of multiple redundancy architecture |
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| CN113885401A (en) * | 2021-10-27 | 2022-01-04 | 杭州和利时自动化有限公司 | Analog quantity output method, device and medium |
| CN113885401B (en) * | 2021-10-27 | 2024-02-20 | 杭州和利时自动化有限公司 | Analog quantity output method, device and medium |
| CN114185291A (en) * | 2021-12-02 | 2022-03-15 | 杭州和利时自动化有限公司 | Output control system |
| CN114185291B (en) * | 2021-12-02 | 2023-07-11 | 杭州和利时自动化有限公司 | Output control system |
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