CN109557892A - A kind of DIO channel status detection method and embedded test system - Google Patents
A kind of DIO channel status detection method and embedded test system Download PDFInfo
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- CN109557892A CN109557892A CN201710877993.4A CN201710877993A CN109557892A CN 109557892 A CN109557892 A CN 109557892A CN 201710877993 A CN201710877993 A CN 201710877993A CN 109557892 A CN109557892 A CN 109557892A
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- G—PHYSICS
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
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Abstract
A kind of DIO channel status detection method and embedded test system, wherein this method comprises: Step 1: obtaining the on-off times of measured switch device in the channel DIO to be measured；Step 2: the on-off times of measured switch device are compared with the default available on-off times reference threshold of the switching device, the state of measured switch device is determined according to comparison result.This method can judge the state of the measured switch device by counting the on-off times of measured switch device, to generate simultaneously outputting alarm signal when the on-off times of measured switch device reach certain number, also just facilitate user that can more accurately and reliably recognize the current state of switching device in this way, prevents from leading to corresponding DIO channel failure due to switching device ageing failure.
Description
Technical field
The present invention relates to embedded Control technical fields, specifically, being related to a kind of DIO channel status detection method and embedding
Enter formula test macro.
Background technique
With the development of china's industrialization process, embedded control software using more and more extensive, to embedded Control
The reliability requirement of software is also higher and higher, and an important guarantee of the software test as embedded control software quality is also got over
To be more taken seriously.
In the test macro building process of embedded control software, it is often used the digital quantity of DIO hardware realization test product
Acquisition, conversion and the driving output function of input/output signal.Common DIO hardware corridor includes MOSFET mode and relay
Device mode.
In actual operation, a key factor for influencing DIO hardware corridor availability is pass switching device to DIO hardware
Availability.When DIO hardware uses the channel DIO of relay mode, because there is certain electrical longevity in relay switch device
Life, after the on-off times of switching device reach certain value, device is it is possible that ageing failure, so as to cause corresponding DIO
Channel failure needs integral replacing DIO hardware at this time.
Summary of the invention
To solve the above problems, the present invention provides a kind of DIO channel status detection methods, which comprises
Step 1: obtaining the on-off times of measured switch device in the channel DIO to be measured；
Step 2: by the default available on-off times reference of the on-off times of the measured switch device and the switching device
Threshold value is compared, and the state of the measured switch device is determined according to comparison result.
According to one embodiment of present invention, in said step 1, pass through the switch to the measured switch device
Number carries out real-time progressive counting, obtains the on-off times of the measured switch device.
According to one embodiment of present invention, in said step 1,
Detection and detects the rising edge of the signal by the signal of the measured switch device, when detecting letter
When number rising edge, the on-off times of the measured switch device are increased primary；Or,
Detection and detects the failing edge of the signal by the signal of the measured switch device, when detecting letter
When number failing edge, the on-off times of the measured switch device are increased primary；Or,
The signal of the measured switch device is passed through in detection, and detects to the rising edge and failing edge of the signal, when
When detecting one group of pairs of signal rising edge and signal failing edge, the on-off times of the measured switch device are increased by one
It is secondary.
According to one embodiment of present invention, if the on-off times of the measured switch device and default available switch
The ratio of number reference threshold is greater than or equal to the first preset ratio threshold value, then generates and export the first alarm signal.
According to one embodiment of present invention, if the on-off times of the measured switch device and default available switch
The ratio of number reference threshold is greater than or equal to the first preset ratio threshold value but less than the second preset ratio threshold value, then generates and export
First alarm signal；
If the ratio of the on-off times of the measured switch device and default available on-off times reference threshold be greater than or
Equal to the second preset ratio threshold value, then generates and export the second alarm signal.
According to one embodiment of present invention, the method also includes:
According to the corresponding default available on-off times reference threshold of the on-off times of switching device, determine described to be measured
The device state type of each switching device in the channel DIO；
Signal frequency based on each DIO signal in the channel DIO to be measured obtains each in the channel DIO to be measured
The signal type of DIO signal；
According to the signal type and device state type, by the DIO signal of specified signal type and specified device state
The switching device of type is associated, so that the DIO signal of specified signal type is by specifying the switching device of type of device to carry out
Transmission.
The present invention also provides a kind of embedded test systems, which is characterized in that the system is using as above any one institute
The method stated carries out the detection of DIO channel status.
According to one embodiment of present invention, the system comprises:
Detect counting device, be used to detect the switch state of measured switch device in the channel DIO to be measured, obtain it is described to
Survey the on-off times of switching device；
State diagnostic apparatus is connect with the detection counting device, for the switch of the measured switch device is secondary
It is several to be compared with the default available on-off times reference threshold of the switching device, the measured switch is determined according to comparison result
The state of device.
According to one embodiment of present invention, the state diagnostic apparatus is configured to calculate opening for the measured switch device
The ratio of number and default available on-off times reference threshold is closed, and the measured switch is determined according to the value interval of the ratio
The state of device.
According to one embodiment of present invention, the system also includes:
Sig-nal-conditioning unit is connect, for according to the on-off times of switching device and its with the state diagnostic apparatus
Corresponding default available on-off times reference threshold, determines the device state class of each switching device in the channel DIO to be measured
Type, the signal frequency based on each DIO signal in the channel DIO to be measured obtain each DIO signal in the channel DIO to be measured
Signal type, and according to the signal type and device state type, by the DIO signal of specified signal type and specified device
The switching device of Status Type is associated, so that switching device of the DIO signal of specified signal type by specified type of device
It is transmitted.
Embedded test system provided by the present invention can be judged by counting the on-off times of measured switch device
The state of the measured switch device, to generate simultaneously outputting alarm when the on-off times of measured switch device reach certain number
Signal also just facilitates user that can more accurately and reliably recognize the current state of switching device in this way, prevents due to switch
Device aging fails and leads to corresponding DIO channel failure.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by specification, right
Specifically noted structure is achieved and obtained in claim and attached drawing.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is required attached drawing in technical description to do simple introduction:
Fig. 1 is the structural schematic diagram of existing embedded control system；
Fig. 2 is the structural schematic diagram of the test macro of existing embedded control system；
Fig. 3 is the structural schematic diagram of embedded test system according to an embodiment of the invention；
Fig. 4 is the implementation process schematic diagram of DIO channel status detection method according to an embodiment of the invention.
Specific embodiment
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings and examples, how to apply to the present invention whereby
Technological means solves technical problem, and the realization process for reaching technical effect can fully understand and implement.It needs to illustrate
As long as not constituting conflict, each feature in each embodiment and each embodiment in the present invention can be combined with each other,
It is within the scope of the present invention to be formed by technical solution.
Meanwhile in the following description, for illustrative purposes and numerous specific details are set forth, to provide to of the invention real
Apply the thorough understanding of example.It will be apparent, however, to one skilled in the art, that the present invention can not have to tool here
Body details or described ad hoc fashion are implemented.
In addition, step shown in the flowchart of the accompanying drawings can be in the department of computer science of such as a group of computer-executable instructions
It is executed in system, although also, logical order is shown in flow charts, and it in some cases, can be to be different from herein
Sequence execute shown or described step.
As shown in Figure 1, embedded control system 101 is connect with external equipment 102, it is used to send to external equipment 102
Corresponding control instruction, or obtain the corresponding state information of external equipment 102.Embedded control system 101 generally includes: input
Export IO 101a, processor 101b and memory 101c.Wherein, input and output IO 101a is for offer and external equipment
102 carry out the communication interface of data interaction, and memory 101c is used for storing executable code and related data, processor 101b
In execution computations and carry out relevant data processing and operation.Embedded control software is configured in processor 101b, it should
Embedded control software generally comprises operating system and application layer software, is executable code, and processor 101b passes through insertion
Formula controls software to realize certain function.
In order to guarantee the reliability of embedded control software, it is necessary to using the test macro of embedded control software come pair
Embedded control software is tested.Fig. 2 shows the structural representations of the test macro of embedded control software in the present embodiment
Figure.
As shown in Fig. 2, the test macro 201 of embedded control software generally includes signal conditioning unit 202 and data
Processing unit 203.Wherein, data processing unit 203 is for realizing measurand 204 (such as tested embedded control system)
External environment simulation, to meet the external environment of measurand operation.Data processing unit 203 can also be realized to be surveyed including software
Try the functions such as relevant test and management, test execution and user-machine interface.
Signal conditioning unit 202 is connect with data processing unit 203 and measurand 204, is used to receive itself
Signal converted, thus by the output signal of measurand 204 (such as digital signal, analog signal, voltage or electric current
Deng) signal that data processing unit 203 can identify is converted to, also the signal that data processing unit 203 is exported is converted to
The input signal that can be identified by measurand.
In the test macro 201 of embedded control software, DIO hardware 202a is the important set of signal conditioning unit 202
At part, be mainly used for realizing the acquisition of digital signal (including digital input signals and digital output signal), conversion and
The functions such as driving output.DIO hardware 202a is capable of providing multiple I/O channel, and channel interior has crucial switching device real
The switch on and off of existing I/O channel.Common switching device includes MOSFET and relay.
The present invention provides a kind of DIO channel status detection methods and application this method to carry out the detection of DIO channel status
Embedded test system, this method and system can be determined by the on-off times of switching device in the detection channel DIO
The state of switching device, and then determine the state in the channel DIO.
When the switching device in the channel DIO using relay to realize when, all there is certain electrical endurance in relay, electricity
The gas service life describes the ability that relay can work normally under given conditions.For relay, electrical endurance is logical
It is stated frequently with on-off times.For example, the reference life parameter of Omron relay is as follows: G4A mechanical life 2,000,000 times with
On, electrical endurance 200,000 times or more (1.5sON 1.5sOFF).
When the on-off times of the switching device in the channel DIO meet or exceed electrical endurance, DIO hardware may then go out
The problem of existing switching device failure, the corresponding channel DIO can also fail, to the not available phenomenon in channel occur.
Therefore DIO channel status detection method and system provided by the present invention are just based in the detected channel DIO
The on-off times of switching device realize the detection of switching device state and DIO channel status.Specifically, Fig. 3 shows this
The structural schematic diagram of embedded test system provided by embodiment, Fig. 4 show DIO channel status provided by the present embodiment
The implementation process schematic diagram of detection method, the embedded test system preferably carry out the channel DIO using method shown in Fig. 4
The detection of state.
As shown in figure 3, embedded test system 301 provided by the present embodiment with it is each in the channel DIO 300 to be measured
The connection of switching device signal, preferably includes: detection counting device 302 and state diagnostic apparatus 303.
Wherein, detection counting device 302 is connect with each switching device signal in the channel DIO 202a to be measured.In system
During work, detection counting device 302 can detect the switch of measured switch device in the channel DIO to be measured in step S401
State, to obtain the on-off times of measured switch device.
In the present embodiment, detecting counting device 302 can be by the switch to switching device to be measured in step S401
Number carries out real-time progressive counting, to obtain on-off times (the i.e. measured switch device progress switch motion of the measured switch device
Total degree).Specifically, in the present embodiment, detection counting device 302 can by by measured switch device signal into
Row identification, the switch state of measured switch device is detected with this.For example, detection counting device 302 can be opened by be measured
The rising edge for closing the signal of device is detected, when detecting signal rising edge (i.e. 0 → 1 jump occurs for digital signal), inspection
It surveys counting device 302 and also decides that a switch motion occurs for measured switch device at this time, thus opening measured switch device
Number is closed to increase once.
Certainly, in other embodiments of the invention, detection counting device 302 can also using other reasonable manners come
The on-off times of switching device are detected, the invention is not limited thereto.For example, in one embodiment of the invention, detection
Counting device 302 can also be detected to by the failing edge of signal of measured switch device, when detecting signal failing edge
When (i.e. 1 → 0 jump occurs for digital signal), detection counting device 302 also decides that measured switch device generation at this time is once opened
Pass movement, to the on-off times of measured switch device be increased primary；In another embodiment of the present invention, detection counts
Device 302 can to by measured switch device signal rising edge and failing edge detect, when detect signal rise
When edge and failing edge (i.e. 0 → 1 → 0 jump occurs for digital signal), detection counting device 302 also decides that measured switch device at this time
Switch motion occurs for part, to the on-off times of measured switch device be increased primary.
Counting device 302 is detected after the on-off times for obtaining measured switch device, obtained on-off times can be transmitted
To the state diagnostic apparatus 303 being attached thereto, by the on-off times of measured switch device and to be somebody's turn to do by state diagnostic apparatus 303
The default available on-off times threshold value of switching device is compared, to determine the shape of measured switch device according to comparison result
State.
Specifically, as shown in figure 4, in the present embodiment, state diagnostic apparatus 303 is in the switch for receiving measured switch device
After number, the on-off times and default can be used corresponding to the switching device that measured switch device can be calculated in step S402 are held
The ratio of number reference threshold is closed, and judges whether the ratio is greater than or equal to the first preset ratio threshold value in step S403.
The reference electricity that available on-off times reference threshold is preferably the switching device is preset in the present embodiment, corresponding to switching device
The gas service life.In different embodiments of the invention, the reference electrical endurance of switching device can pass through institute, practical devices manufacturer
The parameter of offer obtains, can also by the switching device to same type carry out reliability test or life test test come
It arrives.
If presetting available on-off times corresponding to the on-off times of measured switch device and the switching device refers to threshold
The ratio of value is greater than or equal to the first preset ratio threshold value, then state diagnostic apparatus 303 will also generate in step s 404
First alarm signal, so that the service life of measured switch device be prompted to carry out early warning.If as the ratio is default less than first
Proportion threshold value, then state diagnostic apparatus 303 will also determine that measured switch device still has longer service life at this time, at this time
The system continues to detect the on-off times of measured switch device for step S401 is continued to execute.
In other embodiments of the invention, state diagnostic apparatus 303 judges measured switch device in step S403
On-off times and the switching device corresponding to preset the ratio of available on-off times reference threshold to be greater than or equal to first pre-
If after proportion threshold value, can also further judge whether the ratio is greater than or equal to the second preset ratio threshold value.Wherein, if it is to be measured
The on-off times of switching device are greater than or wait with the ratio for presetting available on-off times reference threshold corresponding to the switching device
In the first preset ratio threshold value but less than the second preset ratio threshold value, then state diagnostic apparatus 303 can then generate and export
One alarm signal；And if above-mentioned ratio is greater than or equal to the second preset ratio threshold value, state diagnostic apparatus 303 can then give birth to
At the second alarm signal.The alarm grade of second alarm signal is than the alarm higher grade of the first alarm signal, and user passes through second
Alarm signal can know that the service life of measured switch device refers to electrical endurance already close to it.
It should be pointed out that in different embodiments of the invention, above-mentioned first preset ratio threshold value and the second default ratio
Example threshold value can be configured to different reasonable values according to actual needs, and the present invention is not to above-mentioned first preset ratio threshold value and the
The specific value of two preset ratio threshold values is defined.
It can thus be seen that embedded test system provided by the present embodiment can pass through statistics measured switch device
On-off times judge the state of the measured switch device, thus when the on-off times of measured switch device reach certain number
Simultaneously outputting alarm signal is generated, also just facilitates user that can more accurately and reliably recognize the current shape of switching device in this way
State prevents from leading to corresponding DIO channel failure due to switching device ageing failure.
Since the digital signal passed through in switching device different in the channel DIO is different, institute in different switching devices
The digital signal of process may be high-frequency signal, it is also possible to be intermediate-freuqncy signal, it is also possible to be low frequency signal, this also allows for DIO
The on-off times of different switching devices can have larger difference in channel, carry the embedded of DIO hardware so as to cause current
The test macro of control software can have DIO hardware corridor service life unbalanced problem in application process.
In view of the above-mentioned problems, as shown in figure 3, DIO channel status detection system provided by the present embodiment is preferably also wrapped
The sig-nal-conditioning unit 304 connecting with state diagnostic apparatus 303 is included.When state diagnostic apparatus 303 judges measured switch device
The ratio that available on-off times reference threshold is preset corresponding to the on-off times of part and the switching device is greater than or equal to first
After preset ratio threshold value, sig-nal-conditioning unit 304 can the on-off times based on switching device, realized according to certain strategy pair
The signal in the channel DIO configures adjustment, to realize the service life well-balanced adjustment of each switching device in the channel DIO.
Specifically, as shown in figure 4, in the present embodiment, sig-nal-conditioning unit 304 can be in step S405 according to switching device
On-off times and the switching device corresponding to preset available on-off times reference threshold, determine the device of each switching device
Status Type,
For example, sig-nal-conditioning unit 304 can preset available on-off times by calculating corresponding to each switching device
The difference of reference threshold and its on-off times obtains the residue switch number of each switching device, and then according to residue switch time
Switching device is divided into the first device state type, the second device state type and third device state class by several value ranges
Type.
Wherein, the residue switch number of the first device state type characterization switching device is more (such as high remaining life),
The residue switch number that third device state type characterizes switching device is less (such as low remaining life), the second device state class
Type then characterize switching device residue switch number be between the first device state type and third device state type (such as
Middle remaining life).
For example, if the residue switch number of switching device is greater than or equal to the first default residue switch frequency threshold value, that
The switching device can be then determined as the first device state type by sig-nal-conditioning unit 304；If the residue of switching device is opened
Number is closed less than the first default residue switch frequency threshold value but is greater than or equal to the second default residue switch frequency threshold value, then believing
Number adjustment device 304 switching device can be then determined as to the second device state type；If the residue switch time of switching device
Number is less than the second default residue switch frequency threshold value, then the switching device can be then determined as third by sig-nal-conditioning unit 304
Device state type.
It should be pointed out that in different embodiments of the invention, for distinguishing the switching device of device Status Type
First default residue switch frequency threshold value and the second default residue switch frequency threshold value can be configured to difference according to actual needs
Reasonable value, the present invention is not to the specific of the first default residue switch frequency threshold value and the second default residue switch frequency threshold value
Value is defined.
Sig-nal-conditioning unit 304 can also be in step S406 based on each DIO signal passed through required for the channel DIO
Signal frequency obtains the signal type of each DIO signal.Specifically, in the present embodiment, sig-nal-conditioning unit 304 is believed according to DIO
Number signal frequency DIO signal is preferably divided into high-frequency signal, intermediate-freuqncy signal and low frequency signal.In the present embodiment not to
It is high-frequency signal or intermediate-freuqncy signal or is that the specific value of signal frequency of low frequency signal is limited in distinguishes DIO signal
It is fixed.
Sig-nal-conditioning unit 304 can be believed in step S 407 according to signal type and device state type by specified
The DIO signal of number type is associated with the switching device of specified device state type.
For example, sig-nal-conditioning unit 304 can be associated with the switching device of the first device state type by high-frequency signal, it will
Intermediate-freuqncy signal is associated with the switching device of the second device state type, by the switch of low frequency signal and third device state type
Device is associated.In this way in subsequent use process, the switching device of high remaining life transmitted will for high-frequency signal, in remain
What the switching device in remaining service life was transmitted will be intermediate-freuqncy signal, and what the switching device of low remaining life was transmitted will believe for low frequency
Number, to improve the utilization rate of each switching device in the channel DIO, it helps improve the service life of DIO hardware.
For another example sig-nal-conditioning unit 304 can automatically generate all kinds of DIO signals and open with all kinds of according to default adjustment rule
Close the related information table of device.User also can be to the DIO signal that each switching device is transmitted according to the related information table
It is adjusted.Specifically, above-mentioned default adjustment rule can carry out reasonable disposition according to actual needs, for example, by high-frequency signal with
The switching device of first device state type is associated, and intermediate-freuqncy signal is related to the switching device of the second device state type
Connection, low frequency signal is associated with the switching device of third device state type.
It should be understood that disclosed embodiment of this invention is not limited to specific structure disclosed herein or processing step
Suddenly, the equivalent substitute for these features that those of ordinary skill in the related art are understood should be extended to.It should also be understood that
It is that term as used herein is used only for the purpose of describing specific embodiments, and is not intended to limit.
" one embodiment " or " embodiment " mentioned in specification means the special characteristic described in conjunction with the embodiments, structure
Or characteristic is included at least one embodiment of the present invention.Therefore, the phrase " reality that specification various places throughout occurs
Apply example " or " embodiment " the same embodiment might not be referred both to.
Although above-mentioned example is used to illustrate principle of the present invention in one or more application, for the technology of this field
For personnel, without departing from the principles and ideas of the present invention, hence it is evident that can in form, the details of usage and implementation
It is upper that various modifications may be made and does not have to make the creative labor.Therefore, the present invention is defined by the appended claims.
Claims (10)
1. a kind of DIO channel status detection method, which is characterized in that the described method includes:
Step 1: obtaining the on-off times of measured switch device in the channel DIO to be measured；
Step 2: by the default available on-off times reference threshold of the on-off times of the measured switch device and the switching device
It is compared, the state of the measured switch device is determined according to comparison result.
2. the method as described in claim 1, which is characterized in that in said step 1, by the measured switch device
On-off times carry out real-time progressive counting, obtain the on-off times of the measured switch device.
3. method according to claim 2, which is characterized in that in said step 1,
Detection and detects the rising edge of the signal by the signal of the measured switch device, when detecting on signal
Rise along when, the on-off times of the measured switch device are increased primary；Or,
Detection and detects the failing edge of the signal by the signal of the measured switch device, when detecting under signal
Drop along when, the on-off times of the measured switch device are increased primary；Or,
The signal of the measured switch device is passed through in detection, and detects to the rising edge and failing edge of the signal, works as detection
When to one group of pairs of signal rising edge and signal failing edge, the on-off times of the measured switch device are increased primary.
4. method according to any one of claims 1 to 3, which is characterized in that if the switch of the measured switch device
The ratio of number and default available on-off times reference threshold is greater than or equal to the first preset ratio threshold value, then generates and export the
One alarm signal.
5. method as described in any one of claims 1 to 4, which is characterized in that
If the on-off times of the measured switch device and the ratio of default available on-off times reference threshold are greater than or equal to
First preset ratio threshold value but less than the second preset ratio threshold value, then generate and export the first alarm signal；
If the on-off times of the measured switch device and the ratio of default available on-off times reference threshold are greater than or equal to
Second preset ratio threshold value then generates and exports the second alarm signal.
6. such as method according to any one of claims 1 to 5, which is characterized in that the method also includes:
According to the corresponding default available on-off times reference threshold of the on-off times of switching device, the DIO to be measured is determined
The device state type of each switching device in channel；
Signal frequency based on each DIO signal in the channel DIO to be measured obtains each DIO letter in the channel DIO to be measured
Number signal type；
According to the signal type and device state type, by the DIO signal of specified signal type and specified device state type
Switching device it is associated so that the DIO signal of specified signal type is by specifying the switching device of type of device to be transmitted.
7. a kind of embedded test system, which is characterized in that the system is used as according to any one of claims 1 to 6
The detection of method progress DIO channel status.
8. system as claimed in claim 7, which is characterized in that the system comprises:
Counting device is detected, is used to detect the switch state of measured switch device in the channel DIO to be measured, obtains described to be measured open
Close the on-off times of device；
State diagnostic apparatus is connect with the detection counting device, for by the on-off times of the measured switch device with
The default available on-off times reference threshold of the switching device is compared, and determines the measured switch device according to comparison result
State.
9. system as claimed in claim 8, which is characterized in that the state diagnostic apparatus is configured to calculate the measured switch
The ratio of the on-off times of device and default available on-off times reference threshold, and according to the determination of the value interval of the ratio
The state of measured switch device.
10. system as claimed in claim 8 or 9, which is characterized in that the system also includes:
Sig-nal-conditioning unit is connect with the state diagnostic apparatus, for corresponding according to the on-off times of switching device
Default available on-off times reference threshold, determine the device state type of each switching device in the channel DIO to be measured, base
The signal frequency of each DIO signal obtains the letter of each DIO signal in the channel DIO to be measured in the channel DIO to be measured
Number type, and according to the signal type and device state type, by the DIO signal of specified signal type and specified device state
The switching device of type is associated, so that the DIO signal of specified signal type is by specifying the switching device of type of device to carry out
Transmission.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109917180A (en) * | 2019-04-03 | 2019-06-21 | 杭州安脉盛智能技术有限公司 | Direct current signal non-contact detecting sensor based on current transformer |
| CN110725099A (en) * | 2019-09-27 | 2020-01-24 | 青岛海尔洗衣机有限公司 | Control method for washing machine fault diagnosis and washing machine |
| CN114002591A (en) * | 2020-07-28 | 2022-02-01 | 株洲中车时代电气股份有限公司 | Locomotive servicing test switch detection method and device and related components |
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| CN109917180B (en) * | 2019-04-03 | 2021-01-15 | 杭州安脉盛智能技术有限公司 | Direct current signal non-contact detection sensor based on current transformer |
| CN110725099A (en) * | 2019-09-27 | 2020-01-24 | 青岛海尔洗衣机有限公司 | Control method for washing machine fault diagnosis and washing machine |
| CN114002591A (en) * | 2020-07-28 | 2022-02-01 | 株洲中车时代电气股份有限公司 | Locomotive servicing test switch detection method and device and related components |
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