CN110888097B - Line switching method and device - Google Patents
Line switching method and device Download PDFInfo
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- CN110888097B CN110888097B CN201911106375.5A CN201911106375A CN110888097B CN 110888097 B CN110888097 B CN 110888097B CN 201911106375 A CN201911106375 A CN 201911106375A CN 110888097 B CN110888097 B CN 110888097B
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Abstract
The invention relates to a line switching method and a device, wherein the line switching method comprises the steps of sequentially and respectively acquiring a first running state parameter and a second running state parameter of a line wiring terminal in a time sequence; detecting whether the first operating state parameter matches the second operating state parameter; and when the first operation state parameter is not matched with the second operation state parameter, sending a tangent signal to a line switcher so as to change the on-off state of the line corresponding to the line wiring terminal. The method comprises the steps of determining the running state of a line corresponding to a line connecting terminal according to the running state parameters of the line connecting terminal at two different moments, indicating that a line is tangent when the running state of the line connecting terminal changes, namely indicating that the line is switched on or switched off, and changing the on-off state of the line by sending a tangent signal, so that the on-off state of the line is automatically switched, and the tangent efficiency is improved.
Description
Technical Field
The invention relates to the technical field of universal meter verification, in particular to a line switching method and device.
Background
Along with the promotion of electric wire netting power supply volume, need regularly examine and determine to the operating condition of cable, common calibrating installation is the universal meter, and traditional universal meter is after using a period, and the condition that the damage can appear in the internal circuit for the degree of accuracy of universal meter reduces, consequently, needs to carry out the examination of degree of accuracy to the universal meter.
However, the operation of manual wiring and line switching is needed in the traditional universal meter verification process, namely, firstly, the wiring and wiring are conducted on the universal meter wiring terminal, the universal meter wiring terminal is correspondingly connected with the wiring terminal of the output standard source, and when different ranges and gears are verified, the wiring of the universal meter wiring terminal and the wiring of the output standard source output terminal need to be switched, so that the wiring needs to be switched continuously in the universal meter verification process, the operation process is complex, and the wire cutting efficiency is reduced.
Disclosure of Invention
Accordingly, there is a need for a line switching method and apparatus for improving the line cutting efficiency.
A method of line switching, comprising: sequentially and respectively acquiring a first operation state parameter and a second operation state parameter of the line wiring terminal under a time sequence; detecting whether the first operating state parameter matches the second operating state parameter; and when the first operation state parameter is not matched with the second operation state parameter, sending a tangent signal to a line switcher so as to change the on-off state of the line corresponding to the line wiring terminal.
In one embodiment, the detecting whether the first operating condition parameter matches the second operating condition parameter includes: and detecting whether the first operation state parameter is equal to the second operation state parameter.
In one embodiment, the detecting whether the first operating condition parameter matches the second operating condition parameter comprises: and when the first operation state parameter is not equal to the second operation state parameter, sending a tangent signal to the line switcher.
In one embodiment, the sending a tangent signal to the line switcher when the first operating state parameter is not equal to the second operating state parameter includes: and when the first operation state parameter is smaller than the second operation state parameter, sending a conducting signal to the line switcher.
In one embodiment, the sending a tangent signal to the line switcher when the first operating state parameter is not equal to the second operating state parameter further includes: and when the first operation state parameter is larger than the second operation state parameter, sending a disconnection signal to the line switcher.
In one embodiment, after the detecting whether the first operating state parameter matches the second operating state parameter, the method further includes: and when the first operation state parameter is equal to the second operation state parameter, sending a maintaining signal to the line switcher.
In one embodiment, the sequentially and respectively acquiring the first operating state parameter and the second operating state parameter of the line terminal in the time sequence includes: acquiring the first operating state parameter of the line wiring terminal; and after the preset time, acquiring the second operation state parameter of the line wiring terminal again.
In one embodiment, the preset time is 10-50 ms.
In one embodiment, the predetermined time is 30 ms.
A line switching apparatus comprising: the system comprises a processing module, a standard source and a line switcher, wherein the standard source is connected with a corresponding line through the line switcher; the processing module is used for sequentially and respectively acquiring a first running state parameter and a second running state parameter of the line wiring terminal under a time sequence; the processing module is further configured to detect whether the first operating state parameter matches the second operating state parameter; the processing module is further configured to send a tangent signal to a line switcher when the first operating state parameter is not matched with the second operating state parameter, so that the on-off state of a line corresponding to the line connecting terminal is changed; the standard source is used for providing electric energy for a line correspondingly connected with the line switcher; the line switcher is used for controlling the on-off state of the line corresponding to the line wiring terminal according to the tangent signal.
According to the line switching method and device, the operation state of the line corresponding to the line wiring terminal is determined according to the operation state parameters of the line wiring terminal at two different moments, when the operation state of the line wiring terminal changes, it is indicated that a line cutting operation occurs, namely, the line is turned on or turned off, and the on-off state of the line is changed by sending a line cutting signal, so that the on-off state of the line is automatically switched, and the line cutting efficiency is improved.
Drawings
FIG. 1 is a flow chart of a line switching method according to an embodiment;
fig. 2 is a schematic structural diagram of a line switch according to an embodiment.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The invention relates to a line switching method. For example, the line switching method includes: sequentially and respectively acquiring a first operation state parameter and a second operation state parameter of the line wiring terminal under a time sequence; detecting whether the first operating state parameter matches the second operating state parameter; and when the first operation state parameter is not matched with the second operation state parameter, sending a tangent signal to a line switcher so as to change the on-off state of the line corresponding to the line wiring terminal. The method comprises the steps of determining the running state of a line corresponding to a line connecting terminal according to the running state parameters of the line connecting terminal at two different moments, indicating that a line is tangent when the running state of the line connecting terminal changes, namely indicating that the line is switched on or switched off, and changing the on-off state of the line by sending a tangent signal, so that the on-off state of the line is automatically switched, and the tangent efficiency is improved.
Please refer to fig. 1, which is a flowchart illustrating a circuit switching method according to an embodiment of the invention.
A line switching method includes some or all of the following steps.
S100: and under the time sequence, sequentially and respectively acquiring a first operation state parameter and a second operation state parameter of the line wiring terminal.
In this embodiment, the operating state of the line terminal is an on-off state of the line terminal, and the operating state parameter is a digital quantity corresponding to the operating state, that is, the on-off state of the line terminal is expressed by using the digital quantity, for example, when the operating state is on, the operating state parameter is expressed as "1", and when the operating state is on, the operating state parameter is expressed as "0", where the first operating state includes the on-off state of the line terminal at a first time, the second operating state includes the on-off state of the line terminal at a second time, the first time and the second time are different times, and the first time and the second time are two different time nodes in a time sequence. For the first operating state, the operating state of the line connection terminal includes two states of on and off, and the second operating state also includes two states of on and off of the line connection terminal. Therefore, according to the monitoring of the running state of the line wiring terminal, the change of the running state of the line wiring terminal is convenient to judge, even if the current running state of the line wiring terminal is known, so that the follow-up judgment is convenient to judge the running state condition of the line wiring terminal, even if the follow-up judgment is convenient to judge whether the running state of the line wiring terminal changes or not, and further the follow-up judgment is convenient to judge whether the on-off state of the line wiring terminal changes or not. In other embodiments, the first operating state includes a state of charge presence or absence of the line connection terminal at a first time, and the second operating state includes a state of charge presence or absence of the line connection terminal at a second time, where a time interval between the first time and the second time is a preset time, for example, the preset time interval is an output period of a standard source; as another example, the preset time interval is a crystal oscillation period of the processing module; for another example, the preset time interval is 10 to 50 ms.
S200: detecting whether the first operating state parameter matches the second operating state parameter.
In this embodiment, since the first operating state parameter and the second operating state parameter respectively represent the operating states of the line connection terminal at different times, the operating state change condition of the line connection terminal determines the on-off state of the line corresponding to the line connection terminal. And detecting whether the first operation state parameter is matched with the second operation state parameter, namely detecting whether the operation state of the line wiring terminal changes. The operation state of the line wiring terminal determines the on-off state of a corresponding line, that is, the operation state of the line wiring terminal determines the on-off state of the corresponding line, and the operation state of the line wiring terminal is a state in a time sequence, and the line wiring terminal may change along with the time lapse, so that the front and rear operation states of the line wiring terminal need to be compared, that is, the first operation state parameter and the second operation state parameter of the line wiring terminal are compared, that is, the operation state parameter of the line wiring terminal at the previous moment is compared with the operation state at the next moment, and the on-off state of the line corresponding to the line wiring terminal is conveniently controlled according to the operation state change condition of the line wiring terminal.
S300: and when the first operation state parameter is not matched with the second operation state parameter, sending a tangent signal to a line switcher so as to change the on-off state of the line corresponding to the line wiring terminal.
In this embodiment, the mismatch between the first operating state parameter and the second operating state parameter indicates that the operating state of the line terminal changes, that is, the state of the amount of charge on the line terminal changes, and the first operating state parameter and the second operating state parameter are two different operating state parameters, for example, the first operating state parameter is greater than the second operating state parameter; as another example, the first operating condition parameter is less than the second operating condition parameter. The change of the state parameters of the two line connecting terminals indicates the condition that the charge quantity on the line connecting terminal changes, namely the charge quantity on the line connecting terminal changes from no charge to any charge or from any charge to no charge, namely the line connecting terminal changes between a charge state and a no charge state. Therefore, according to the change of the size and the state of the electric charge on the line wiring terminal, namely, according to the state of the electric charge on the line wiring terminal, the corresponding tangent signal is sent, so that the on-off state of the line corresponding to the line wiring terminal is changed, the on-off state of the current line is automatically switched, and the tangent efficiency is improved. In other embodiments, the tangent signal includes an on signal for changing the line corresponding to the line terminal from the off state to the on state and an off signal for changing the line corresponding to the line terminal from the on state to the off state. The change states of the first operation state parameter and the second operation state parameter corresponding to the state change conditions can be determined according to actual application environments.
In one embodiment, the detecting whether the first operating condition parameter matches the second operating condition parameter includes: and detecting whether the first operation state parameter is equal to the second operation state parameter. In this embodiment, the first operating state parameter and the second operating state parameter are both operating state parameters of the line terminal, and are represented by corresponding numbers, that is, the first operating state parameter is a numerical value corresponding to an operating state of the line terminal at one time, the second operating state parameter is a numerical value corresponding to an operating state of the line terminal at another time, and the first operating state parameter and the second operating state parameter are sequentially obtained in time sequence, for example, the first operating state parameter is obtained first, and then the second operating state parameter is obtained. Like this, first running state parameter with second running state parameter embodies respectively line binding post is at the running state under the different moments, has numerical value size relation between the two and has decided whether line binding post's running state changes, thereby be convenient for detect whether the electric charge volume size in the line binding post changes, and then be convenient for follow-up basis first running state parameter with big or small relation control between the second running state parameter the break-make state of the circuit that line binding post corresponds.
In one embodiment, the detecting whether the first operating condition parameter matches the second operating condition parameter comprises: and when the first operation state parameter is not equal to the second operation state parameter, sending a tangent signal to the line switcher. In this embodiment, the first operating state parameter is different from the second operating state parameter, which indicates that the operating state of the line terminal changes, that is, indicates that the operating states of the line terminal at two different times are different, that is, indicates that the operating states of the line terminal at two times before and after the line terminal are different. Different operation state parameters correspond to different operation states, the different operation state parameters correspond to different numerical values, and indicate that the quantity of electric charge flowing on the line connecting terminal changes, namely that the quantity of electric charge on the line connecting terminal changes from zero to some or from some to none, and the line corresponding to the line connecting terminal correspondingly changes, for example, when the quantity of electric charge on the line connecting terminal changes from zero to some, a tangent signal is sent to the line switcher so that the line corresponding to the line connecting terminal is changed from an open circuit state to a conducting state; for another example, when the charge on the line terminal is changed from the on state to the off state, a line cutting signal is sent to the line switcher so that the line corresponding to the line terminal is changed from the on state to the off state. Therefore, according to the moment when the first running state parameter and the second running state parameter change, the corresponding tangent signal is sent to the line switcher, so that the on-off state of the line corresponding to the line wiring terminal is changed, the on-off state of the current line is automatically switched, and the tangent efficiency is improved.
In one embodiment, the sending a tangent signal to the line switcher when the first operating state parameter is not equal to the second operating state parameter includes: and when the first operation state parameter is smaller than the second operation state parameter, sending a conducting signal to the line switcher. In this embodiment, the first operating state parameter being smaller than the second operating state parameter indicates that the charge on the line connection terminal changes from no charge to charged, i.e. that the charge on the line connection terminal increases from zero to detectable, i.e. that the charge level on the line connection terminal changes from zero to a predetermined value. Since the first operating state parameter and the second operating state parameter are values corresponding to the amount of charge on the line connection terminal, the first operating state parameter is a value corresponding to the amount of charge at the line connection terminal at a first time, the second operating state parameter is a value corresponding to the amount of charge at the second moment of the line connection terminal, the first moment and the second moment being respectively two successively different moments, for example, when the charge quantity on the line connecting terminal is changed from 0 to a fixed value, the first operation state parameter is represented by '0', the second operation state parameter is represented by '1', i.e. no charge on the line terminals, the operating state on the line terminals is "0", when the circuit wiring terminal has electric charges, the operation state of the circuit wiring terminal is 1. In this way, the first operating state parameter is smaller than the second operating state parameter, and at this time, the first operating state parameter is smaller than the second operating state parameter, that is, at this time, the charge on the line connecting terminal is changed from a state in which no charge flows through to a state in which charge flows through, and a conducting signal is sent to the line switcher, so that the line corresponding to the line connecting terminal is conducted, and thus, the charge flows into the line corresponding to the line connecting terminal, and further, the line corresponding to the line connecting terminal is charged and normally operates, that is, the line corresponding to the line connecting terminal is automatically switched from an open circuit state to a conducting state, and the tangent efficiency is improved.
In one embodiment, the sending a tangent signal to the line switcher when the first operating state parameter is not equal to the second operating state parameter further includes: and when the first operation state parameter is larger than the second operation state parameter, sending a disconnection signal to the line switcher. In this embodiment, the operation states of the line terminals are two states, i.e., a charged state and a non-charged state, and the operation state parameter of the line terminal corresponding to the charged state is represented by a numeral "1", and the operation state parameter of the line terminal corresponding to the non-charged state is represented by a numeral "0". Since the first operating state parameter is obtained at a first time, and the second operating state parameter is obtained at a second time, that is, the obtaining time of the first operating state parameter is before the obtaining time of the second operating state parameter, that is, after the first operating state parameter is obtained, the second operating state parameter is obtained, so that the first operating state parameter is greater than the second operating state parameter, which indicates that the first operating state parameter is 1, and the second operating state parameter is 0, which indicates that there is charge in the line connection terminal at the first time, and there is no charge in the line connection terminal at the second time, that is, the charge amount on the line connection terminal changes from charge to zero charge. Therefore, at the moment, the change of the electric charge on the line wiring terminal from existence to nonexistence indicates that the on-off state of the line corresponding to the line wiring terminal needs to be changed, a state change signal is sent to the line switcher, namely, an off signal is sent to the line switcher, and the line corresponding to the line wiring terminal is changed from an on state to an off state through the off signal, so that the state of the line corresponding to the line wiring terminal is automatically switched, and the line cutting efficiency is improved.
In one embodiment, after the detecting whether the first operating state parameter matches the second operating state parameter, the method further includes: and when the first operation state parameter is equal to the second operation state parameter, sending a maintaining signal to the line switcher. In this embodiment, the operation states of the line terminals are two states, i.e., a charged state and a non-charged state, and the operation state parameter of the line terminal corresponding to the charged state is represented by a numeral "1", and the operation state parameter of the line terminal corresponding to the non-charged state is represented by a numeral "0". Since the first operating state parameter is obtained at a first time, and the second operating state parameter is obtained at a second time, that is, the obtaining time of the first operating state parameter is before the obtaining time of the second operating state parameter, that is, after the first operating state parameter is obtained, the second operating state parameter is obtained, so that the first operating state parameter is equal to the second operating state parameter, which indicates that the first operating state and the second operating state are the same operating state, that is, the state of charge in the line terminal at the first time is the same as the state of charge in the line terminal at the second time, for example, when the first operating state parameter is 0, the second operating state parameter is 0; for another example, when the first operating state parameter is 1, the second operating state parameter is 1. Therefore, at the moment, the charge on the line wiring terminal is not changed, which indicates that the on-off state of the line corresponding to the line wiring terminal does not need to be changed, a signal for keeping the existing state is sent to the line switcher, namely, a maintaining signal is sent to the line switcher, and the line corresponding to the line wiring terminal is enabled to keep the same on-off state at the first moment and the second moment through the maintaining signal, so that the running stability of the line corresponding to the line wiring terminal is improved.
In one embodiment, the sequentially and respectively acquiring the first operating state parameter and the second operating state parameter of the line terminal in the time sequence includes: acquiring the first operating state parameter of the line wiring terminal; and after the preset time, acquiring the second operation state parameter of the line wiring terminal again. In this embodiment, the operation states of the line terminals are two states, i.e., a charged state and a non-charged state, and the operation state parameter of the line terminal corresponding to the charged state is represented by a numeral "1", and the operation state parameter of the line terminal corresponding to the non-charged state is represented by a numeral "0". Since the first operating state parameter is acquired at a first time, the second operating state parameter is acquired at a second time, that is, the acquisition time of the first operating state parameter is before the acquisition time of the second operating state parameter, that is, after the first operating state parameter is acquired, the second operating state parameter is acquired. The preset time is a time interval between a first moment and a second moment, so that the first moment and the second moment are two successive and different moments, the first operation state parameter is acquired at the first moment, the second operation state parameter is acquired at the second moment, the first operation state parameter shows the operation state of the line wiring terminal at the first moment, and the second operation state parameter shows the operation state of the line wiring terminal at the second moment. Therefore, the running states of the line connecting terminal at two different moments with a sequence are obtained and converted into corresponding parameters, and the running states of the line connecting terminal at the two different moments are convenient to compare subsequently. In other embodiments, the first time and the second time are shorter as two time intervals in a continuous time sequence, for example, the preset time is 10 to 50 ms; for another example, the preset time is 30ms, so that the state sampling frequency of the line wiring terminal is increased, the real-time state acquisition of the line wiring terminal is improved, the state of the line wiring terminal is acquired in real time, the accuracy of state acquisition of the line wiring terminal is improved, the state change of the line wiring terminal is conveniently and timely sent out a tangent signal, and the tangent efficiency is improved.
In one embodiment, the operating state of the line terminal is two states, namely a charged state and a non-charged state, and the operating state parameter of the line terminal corresponding to the charged state is represented by a numeral "0" and the operating state parameter of the line terminal corresponding to the non-charged state is represented by a numeral "1". And performing non-operation on the digital quantities corresponding to the first operating state parameter and the second operating state parameter, namely obtaining the reverse digital quantity from the digital quantities corresponding to the first operating state parameter and the second operating state parameter. The comparison result in each of the above embodiments changes correspondingly, for example, when the first operating state parameter is greater than the second operating state parameter, a conducting signal is sent to the line switch; for another example, when the first operating state parameter is less than the second operating state parameter, a disconnect signal is sent to a line switcher. Therefore, the on-off state of the line is changed by sending the tangent signal, so that the on-off state of the line is automatically switched, and the tangent efficiency is improved.
In one embodiment, the detecting whether the first operating state parameter and the second operating state parameter are equal comprises: acquiring the same or value of the first running state parameter and the second running state parameter; detecting whether the exclusive nor value is greater than zero. In this embodiment, the operation states of the line terminals are two states, i.e., a charged state and a non-charged state, and the operation state parameter of the line terminal corresponding to the charged state is represented by a numeral "1", and the operation state parameter of the line terminal corresponding to the non-charged state is represented by a numeral "0". The exclusive OR value is a result value after exclusive OR operation between the first operation state parameter and the second operation state parameter, exclusive OR results of different state parameters of the line wiring terminal at a first moment and a second moment are calculated according to exclusive OR operation rules, when the exclusive OR value is 1, the first operation state parameter and the second operation state parameter are equal, namely the first operation state and the second operation state of the line wiring terminal are the same, at the moment, the line corresponding to the line wiring terminal does not need to be subjected to tangent operation, at the moment, a maintaining signal is sent to a line switcher, and the line wiring terminal is enabled to maintain the current operation state; when the same or value is 0, it indicates that the first operating state parameter and the second operating state parameter are not equal, that is, the first operating state and the second operating state of the line connecting terminal are different operating states, at this time, a tangent operation needs to be performed on the line corresponding to the line connecting terminal, and at this time, a tangent signal is sent to the line switcher, so that the on-off state of the line corresponding to the line connecting terminal is changed, that is, the line corresponding to the line connecting terminal is changed from one state to the other state, that is, the line corresponding to the line connecting terminal is changed from the on-state to the off-state or from the off-state to the on-state. Therefore, the on-off state of the line is changed by sending the tangent signal, so that the on-off state of the line is automatically switched, and the tangent efficiency is improved.
In one embodiment, the detecting whether the first operating state parameter and the second operating state parameter are equal comprises: acquiring an exclusive or value of the first operating state parameter and the second operating state parameter; detecting whether the exclusive nor value is greater than zero. In this embodiment, the operation states of the line terminals are two states, i.e., a charged state and a non-charged state, and the operation state parameter of the line terminal corresponding to the charged state is represented by a numeral "1", and the operation state parameter of the line terminal corresponding to the non-charged state is represented by a numeral "0". The exclusive or value is a result value after exclusive or operation between the first running state parameter and the second running state parameter, the exclusive or result of different state parameters of the line connecting terminal at a first moment and a second moment is calculated according to an exclusive or operation rule, when the exclusive or value is 0, the first running state parameter and the second running state parameter are equal, namely the first running state and the second running state of the line connecting terminal are the same running state, at the moment, the line corresponding to the line connecting terminal does not need to be subjected to tangent operation, at the moment, a maintaining signal is sent to the line switcher, and the line connecting terminal is enabled to maintain the current running state; when the same or value is 1, it indicates that the first operating state parameter and the second operating state parameter are not equal, that is, the first operating state and the second operating state of the line connecting terminal are different operating states, at this time, a tangent operation needs to be performed on the line corresponding to the line connecting terminal, and at this time, a tangent signal is sent to the line switcher, so that the on-off state of the line corresponding to the line connecting terminal is changed, that is, the line corresponding to the line connecting terminal is changed from one state to the other state, that is, the line corresponding to the line connecting terminal is changed from the on-state to the off-state or from the off-state to the on-state. Therefore, the on-off state of the line is changed by sending the tangent signal, so that the on-off state of the line is automatically switched, and the tangent efficiency is improved.
In one embodiment, the line switching method is applicable to a plurality of line connection terminals, the line connection terminals are connected with an external device to be tested through corresponding lines, in this embodiment, the external device to be tested is a digital multimeter used for a period of time, the digital multimeter includes four detection interfaces, specifically, an ampere interface, a milliampere/microampere interface, a voltage/resistance interface and a common terminal interface, each of the ampere interface, the milliampere/microampere interface and the voltage/resistance interface forms a loop with the common terminal interface, for example, the ampere interface, the corresponding line connection terminals and the digital multimeter form a first line; for another example, the milliampere/microampere interface, the corresponding line terminal and the digital multimeter form a second line; as another example, the voltage/resistance interface and corresponding line terminals and a digital multimeter form a third line. Like this, when detecting digital multimeter, switch on corresponding circuit for digital multimeter opens the detection that corresponds the gear, is convenient for detect at the gear of difference, has avoided the manual work to carry out on-off state switching operation to the circuit that the interface corresponds on the digital multimeter, thereby makes the on-off state automatic switch-over of circuit, has improved tangent line efficiency.
In one embodiment, the line switching device includes a processing module, a standard source and a line switcher, wherein the standard source is connected with a corresponding line through the line switcher, and the processing module is respectively connected with the line switcher and the standard source; the processing module is used for sequentially and respectively acquiring a first running state parameter and a second running state parameter of the line wiring terminal under a time sequence; the processing module is further configured to detect whether the first operating state parameter matches the second operating state parameter; the processing module is further configured to send a tangent signal to a line switcher when the first operating state parameter is not matched with the second operating state parameter, so that the on-off state of a line corresponding to the line connecting terminal is changed; the standard source is used for providing electric energy for a line correspondingly connected with the line switcher; the line switcher is used for controlling the on-off state of the line corresponding to the line wiring terminal according to the tangent signal. In this embodiment, the line switching device is implemented by using the line switching method according to any embodiment, and the line switching device has functional modules corresponding to the steps of implementing the line switching method. The processing module determines the running state of the line corresponding to the line wiring terminal according to the running state parameters of the line wiring terminal at two different moments, when the running state of the line wiring terminal changes, the line is indicated to have a tangent operation, namely the situation that the line is switched on or off is indicated, and the on-off state of the line is changed by sending a tangent signal to the line switcher, so that the on-off state of the line is automatically switched, and the tangent efficiency is improved.
In one embodiment, referring to fig. 2, the line switch 10 includes: base plate 100, power wiring end module 200 and switch module 300, power wiring end module 200 with switch module 300 set up respectively in on the base plate 100, switch module 300's input with power wiring end module 200 connects, just switch module 300's input is used for passing through power wiring end module 200 is connected with external standard source, power wiring end module 200 still is used for being connected with external processing module's input, switch module 300's control end is used for being connected with external processing module's output, switch module 300's output and the line connection who corresponds.
In this embodiment, the standard source provides electric energy for the line corresponding to the power terminal module 200 through the line switcher, the processing module obtains the output state of the standard source through the power terminal module 200, and the processing module changes the on-off state between the power terminal module 200 and the corresponding line through the switch module 300 according to the output state of the standard source, so that the on-off state of the line is automatically switched, and the line cutting efficiency is improved.
In one embodiment, referring to fig. 2, the substrate 100 is provided with a detection connection terminal 110, the detection terminal of the power connection terminal module 200 is connected to the detection connection terminal 110, and the detection connection terminal 110 is connected to an input terminal of an external processing module. In this embodiment, since the power terminal module 200 is connected to a standard source, the processing module obtains the charge condition of the power terminal module 200 through the detection terminal 110, that is, the processing module obtains the charge condition and the no charge condition of the power terminal module 200 through the detection terminal 110, that is, the processing module determines whether the power terminal module 200 is powered on through the detection terminal 110. The detection wiring terminal 110 is respectively connected with the detection end of the power wiring terminal module 200 and the input end of the processing module, the detection wiring terminal 110 serves as a switching module between the power wiring terminal module 200 and the processing module, the detection wiring terminal 110 inputs a standard source to the voltage or current in the power wiring terminal module 200 for preprocessing, so that the voltage or current input to the processing module meets the requirement, and the condition that the processing module is damaged due to overlarge voltage or current input to the processing module is avoided. In other embodiments, the detection terminal 110 is configured to convert the analog electrical signal of the power terminal module 200 into a digital electrical signal without analog-to-digital conversion performed by a processing module, so that the analog electrical signal is received and processed by the processing module, and the processing efficiency of the electrical signal input from a standard source into the power terminal module 200 is improved.
In one embodiment, referring to fig. 2, the substrate 100 is provided with a control connection terminal 120, and an external processing module is connected to the control terminal of the switch module 300 through the control connection terminal 120. In this embodiment, the control connection terminal 120 is connected to the processing module and the switch module 300, and the processing module analyzes and processes the acquired operating state of the power connection terminal module 200 and then sends a corresponding signal to the switch module 300 through the control connection terminal 120, so as to control the on-off state of the switch module 300, for example, when detecting that the operating state of the power connection terminal module 200 changes, the processing module sends a tangent signal to the switch module 300 through the control connection terminal 120, so as to control the on-off state of the switch module 300, that is, to control the switch module 300 to transition from the on state to the off state, or to control the switch module 300 to transition from the off state to the on state; for another example, when detecting that the operation state of the power terminal module 200 is not changed, the processing module sends a maintaining signal to the switch module 300 through the control terminal 120, so that the state of the switch module 300 is maintained at the current state, that is, the on-off state of the switch module 300 is not changed.
In one embodiment, referring to fig. 2, the substrate 100 is provided with an output connection terminal 130 and a common connection terminal 140, a first end of the switch module 300 is connected to the output connection terminal 130, the output connection terminal 130 is connected to an input end of a corresponding line, a second end of the switch module 300 is connected to the common connection terminal 140, and the common connection terminal 140 is connected to a common end of the corresponding line. In this embodiment, the line switch is used to detect the indication accuracy of the digital multimeter, the switch module 300 is used to control the on-off state of the line switch and the corresponding interface on the digital multimeter, the first end of the switch module 300 is connected to the corresponding interface on the digital multimeter through the output connection terminal 130, the second end of the switch module 300 is connected to the common end on the digital multimeter through the common connection terminal 140, so that the output connection terminal 130, the common connection terminal 140, the switch module 300 and the digital multimeter form a line, the on-off state of the switch module 300 is controlled to control the on-off state between the line switch and the corresponding interface on the digital multimeter, when detection is required, the switch module 300 is turned on to turn on the corresponding line, and when detection is not required, the switch module 300 is turned off, so that the corresponding line is broken. Therefore, the on-off between the circuit and the digital multimeter does not need manual cutting, so that the on-off state of the circuit is automatically switched, and the cutting efficiency is improved.
In one embodiment, referring to fig. 2, the output connection terminal 130 includes at least one voltage connection terminal 132, the switch module 300 includes a first voltage switch 310 and a second voltage switch 320, the power connection terminal module 200 includes at least one power voltage terminal 210, the positive pole of the power voltage terminal 210 is connected to the voltage connection terminal 132 through the first voltage switch 310, and the negative pole of the power voltage terminal 210 is connected to the common connection terminal 140 through the second voltage switch 320. In this embodiment, the voltage output end of the standard source is connected to the switch module 300 through the power voltage terminal 210, the switch module 300 is configured to change the on-off state between the power voltage terminal 210 and the digital multimeter, and the processing module controls the on-off state of the switch module 300 through the control terminal 120, that is, the processing module controls the on-off states of the first voltage switch 310 and the second voltage switch 320 through the control terminal 120. Therefore, by controlling the on-off states of the first voltage switch 310 and the second voltage switch 320, the electric signal output by the voltage output end of the standard source is controlled to pass through the on-off of the power supply voltage terminal 210 and the digital multimeter, namely, the voltage detection gear on the digital multimeter and the on-off of the power supply voltage terminal 210 are controlled, so that the determined voltage output by the voltage output end of the standard source is transmitted to the multimeter to be displayed, and the accuracy of the voltage detection gear of the digital multimeter is determined according to the comparison result of the voltage displayed on the digital multimeter and the determined voltage output by the voltage output end of the standard source. In other embodiments, the first voltage switch 310 and the second voltage switch 320 comprise high voltage relays of the HRM24-2a15 type having a maximum switching voltage of 10000V dc and a minimum breakdown voltage of 15000V.
In one embodiment, referring to fig. 2, the output terminal 130 includes at least one current terminal 134, the switch module 300 includes a first current switch 330 and a second current switch 340, the power terminal module 200 includes at least one power current terminal 220, the positive pole of the power current terminal 220 is connected to the current terminal 134 through the first current switch 330, and the negative pole of the power current terminal 220 is connected to the common terminal 140 through the second current switch 340. In this embodiment, the current output end of the standard source is connected to the switch module 300 through the power current terminal 220, the switch module 300 is configured to change the on-off state between the power current terminal 220 and the digital multimeter, and the processing module controls the on-off state of the switch module 300 through the control terminal 120, that is, the processing module controls the on-off states of the first current switch 330 and the second current switch 340 through the control terminal 120. Therefore, by controlling the on-off states of the first current switch 330 and the second current switch 340, the electric signal output by the current output end of the standard source is controlled to pass through the on-off state of the power current terminal 220 and the digital multimeter, namely, the on-off state of the current detection gear on the digital multimeter and the on-off state of the power current terminal 220 are controlled, so that the determined current output by the current output end of the standard source is transmitted to the multimeter for display, and the accuracy of the current detection gear of the digital multimeter is determined according to the comparison result of the current displayed on the digital multimeter and the determined current output by the current output end of the standard source. In other embodiments, the first current switch 330 and the second current switch 340 comprise a HHC67E-1Z-24 model high current relay having a contact load current of 40A and an ac voltage of 240V.
In one embodiment, referring to fig. 2, the current connection terminals 134 include a first current connection terminal 1342 and a second current connection terminal 1344, the first current switch 330 includes two first sub-current switches 332, the positive electrode of the power current terminal 220 is connected to the first current connection terminal 1342 through one of the first sub-current switches 332, and the positive electrode of the power current terminal 220 is connected to the second current connection terminal 1344 through the other first sub-current switch 332. In this embodiment, because there are two current detection gears on the digital multimeter, that is, a large current detection gear and a small current detection gear, that is, an ampere detection gear and a milliampere/microampere detection gear, the first current connection terminal 1342 and the second current connection terminal 1344 are respectively used for being connected to the ampere detection gear and the milliampere/microampere detection gear of the digital multimeter, for example, the first current connection terminal 1342 is connected to the ampere detection gear of the digital multimeter, and the second current connection terminal 1344 is connected to the milliampere/microampere detection gear of the digital multimeter. The processing module controls the on-off states of the two first sub-current switches 332 through the control connection terminal 120, and in order to separately detect currents with different magnitudes, the on-off states of the two first sub-current switches 332 are different, that is, when one of the first sub-current switches 332 is turned on, the other first sub-current switch 332 is turned off. Therefore, by controlling the on-off state of the two first sub-current switches 332, the electric signal output by the current output end of the standard source is controlled to pass through the on-off state of the power current terminal 220 and the digital multimeter, namely, different current detection gears on the digital multimeter and the corresponding on-off state of the power current terminal 220 are controlled, so that currents with different magnitudes output by the current output end of the standard source are transmitted to the current detection gears corresponding to the multimeter and are displayed, and the accuracy of the two current detection gears of the digital multimeter is determined according to the comparison result of the currents displayed on the digital multimeter and the determined currents output by the current output end of the standard source.
In one embodiment, referring to fig. 2, the control connection terminal 120 includes two current control connection terminals 122, each of the current control connection terminals 122 is correspondingly connected to one of the first sub-current switches 332, a first output terminal of the external processing module is connected to one of the current control connection terminals 122, and a second output terminal of the external processing module is connected to the other current control connection terminal 122. In this embodiment, in order to facilitate controlling the detection of different currents, two output terminals of the processing module are respectively connected to one of the current control connection terminals 122, and the two current control connection terminals 122 are used to control different currents to pass through the switch module 300, for example, a first output terminal of the processing module is correspondingly connected to one of the first sub-current switches 332 through one of the current control connection terminals 122, so that the processing module controls the on-off state of one of the first sub-current switches 332, and thus controls the on-off state of a large current signal output by the standard source between the first current connection terminal 1342 and an ampere detection gear of the digital multimeter; for another example, the second output terminal of the processing module is correspondingly connected to one of the first sub-current switches 332 through one of the current control connection terminals 122, so that the processing module controls the on-off state of one of the first sub-current switches 332, and thereby controls the on-off state of the small current signal output by the standard source between the second current connection terminal 1344 and the milliamp/microamp detection gear of the digital multimeter. Like this, through controlling the difference current control binding post 122 changes the on-off state of the different current detection gears of line switch and digital multimeter need not the manual work and carries out the tangent line for the on-off state automatic switch-over of circuit has improved tangent line efficiency.
In one embodiment, referring to fig. 2, the switch module 300 includes a first resistive switch 350 and a second resistive switch 360, the power terminal module 200 includes at least one power resistor terminal 230, the positive pole of the power resistor terminal 230 is connected to the voltage terminal 132 through the first resistive switch 350, and the negative pole of the power resistor terminal 230 is connected to the common terminal 140 through the second resistive switch 360. In this embodiment, since the voltage method is adopted for measuring the voltage and the resistance output by the standard source, when the resistance measurement is performed, the interface of the digital multimeter is still the voltage detection interface, and the detection gear of the digital multimeter is adjusted to be the resistance gear. The resistance output end of the standard source is connected with the switch module 300 through the power supply resistance terminal 230, the switch module 300 is used for changing the on-off state between the power supply resistance terminal 230 and the digital multimeter, and the processing module controls the on-off state of the switch module 300 through the control terminal 120, that is, the processing module simultaneously controls the on-off states of the first resistance switch 350 and the second resistance switch 360 through the control terminal 120. Therefore, by controlling the on-off states of the first resistance switch 350 and the second resistance switch 360, the electric signal output by the resistance output end of the standard source is controlled to pass through the on-off of the power supply resistance terminal 230 and the digital multimeter, namely, the on-off of the resistance detection gear on the digital multimeter and the power supply resistance terminal 230 is controlled, so that the determined equivalent resistance value output by the resistance output end of the standard source is used for being detected and displayed by the digital multimeter, and the accuracy of the resistance detection gear of the digital multimeter is determined according to the comparison result of the resistance displayed on the digital multimeter and the determined equivalent resistance value output by the voltage output end of the standard source. In other embodiments, the first and second resistive switches 350 and 360 comprise a model G5V-2 relay having a contact resistance of 50 ohms or less.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A method for line switching, comprising:
sequentially and respectively acquiring a first operation state parameter and a second operation state parameter of the line wiring terminal under a time sequence;
detecting whether the first operating state parameter matches the second operating state parameter;
when the first operation state parameter is not matched with the second operation state parameter, sending a tangent signal to a line switcher so as to change the on-off state of a line corresponding to the line wiring terminal;
the running state of the line wiring terminal is the on-off state of the line wiring terminal, and the running state parameter is a digital quantity corresponding to the running state;
the first operation state comprises the on-off state of the line wiring terminal at a first moment, the second operation state comprises the on-off state of the line wiring terminal at a second moment, the first moment and the second moment are different moments, and the first moment and the second moment are two different time nodes under a time sequence.
2. The line switching method according to claim 1, wherein the detecting whether the first operation state parameter matches the second operation state parameter comprises:
and detecting whether the first operation state parameter is equal to the second operation state parameter.
3. The line switching method according to claim 2, wherein the detecting whether the first operating state parameter matches the second operating state parameter comprises:
and when the first operation state parameter is not equal to the second operation state parameter, sending a tangent signal to the line switcher.
4. The line switching method according to claim 3, wherein the sending a tangent signal to the line switcher when the first operating state parameter is not equal to the second operating state parameter comprises:
and when the first operation state parameter is smaller than the second operation state parameter, sending a conducting signal to the line switcher.
5. The line switching method according to claim 3, wherein the sending a tangent signal to the line switcher when the first operating state parameter is not equal to the second operating state parameter further comprises:
and when the first operation state parameter is larger than the second operation state parameter, sending a disconnection signal to the line switcher.
6. The line switching method according to claim 2, wherein the detecting whether the first operating state parameter matches the second operating state parameter further comprises:
and when the first operation state parameter is equal to the second operation state parameter, sending a maintaining signal to the line switcher.
7. The line switching method according to claim 1, wherein sequentially and respectively acquiring the first operating state parameter and the second operating state parameter of the line terminal in the time sequence comprises:
acquiring the first operating state parameter of the line wiring terminal;
and after the preset time, acquiring the second operation state parameter of the line wiring terminal again.
8. The line switching method according to claim 7, wherein the predetermined time is 10 to 50 ms.
9. The line switching method according to claim 8, wherein the preset time is 30 ms.
10. A line switching apparatus, comprising: the system comprises a processing module, a standard source and a line switcher, wherein the standard source is connected with a corresponding line through the line switcher;
the processing module is used for sequentially and respectively acquiring a first running state parameter and a second running state parameter of the line wiring terminal under a time sequence; the processing module is further configured to detect whether the first operating state parameter matches the second operating state parameter; the processing module is further configured to send a tangent signal to a line switcher when the first operating state parameter is not matched with the second operating state parameter, so that the on-off state of a line corresponding to the line connecting terminal is changed; the running state of the line wiring terminal is the on-off state of the line wiring terminal, and the running state parameter is a digital quantity corresponding to the running state; the first operation state comprises the on-off state of the line wiring terminal at a first moment, the second operation state comprises the on-off state of the line wiring terminal at a second moment, the first moment and the second moment are different moments, and the first moment and the second moment are two different time nodes under a time sequence;
the standard source is used for providing electric energy for a line correspondingly connected with the line switcher;
the line switcher is used for controlling the on-off state of the line corresponding to the line wiring terminal according to the tangent signal.
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| CN201911106375.5A CN110888097B (en) | 2019-11-13 | 2019-11-13 | Line switching method and device |
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