CN216209522U - Detection device for detecting switching value output signal - Google Patents
Detection device for detecting switching value output signal Download PDFInfo
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- CN216209522U CN216209522U CN202122345802.4U CN202122345802U CN216209522U CN 216209522 U CN216209522 U CN 216209522U CN 202122345802 U CN202122345802 U CN 202122345802U CN 216209522 U CN216209522 U CN 216209522U
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Abstract
The utility model relates to a detection device for detecting an output signal of a switching value, belongs to the field of signal detection, and aims to provide a detection device capable of quickly and simply detecting and judging whether the output of a switching value module has problems. The detection device is used for detecting whether a switching value output signal with preset characteristics exists on a transmission path of the switching value output signal, and comprises: a coupling member coupled to the transmission path; and at least one indicator light configured to be wirelessly electromagnetically coupled or wired electrically connected to the transmission path through the coupling member, wherein the indicator light has an electrical signal exciting element which is excited only by a predetermined electrical signal to undergo a visible change in optical characteristic, and the switching output signal having the predetermined characteristic on the transmission path generates the predetermined electrical signal exciting the electrical signal exciting element through the coupling member. The detection device is suitable for daily equipment detection, such as maintenance, and can quickly detect and judge whether the output of the module has problems.
Description
Technical Field
The utility model relates to a detection device for detecting a switching value output signal, and belongs to the field of signal detection.
Background
In an industrial control system, a switching value signal is generally output to a receiving component (a controlled component such as a relay) to realize corresponding control, and the switching value signal can be output through a switching value module of a cabinet. The output switching value signal is a discontinuous signal having only two states of high and low potential, and usually has multiple states or forms, such as a long command type signal (e.g., 24V DC) and a short command pulse type signal (e.g., 2Hz and 0.5 Hz).
During actual use, for example, during maintenance, the output switching value signal needs to be measured. Typically, the measurement personnel need to measure through a specialized meter (e.g., multimeter, oscilloscope, etc.). Although a professional instrument such as an oscilloscope can measure various parameters of an electrical signal in a graphic mode, such as voltage amplitude, period, frequency, phase difference, pulse width and the like of the signal, the professional instrument such as the oscilloscope is generally large and heavy, is inconvenient for a tester to carry and carry, and needs a certain operation skill of the tester compared with other measuring instruments. Moreover, such specialized meters are expensive and require periodic verification and maintenance.
In the daily equipment detection process, whether the output of the switching value module has a problem needs to be detected and judged quickly and simply. Obviously, the use of specialized instrumentation does not accommodate this requirement well.
SUMMERY OF THE UTILITY MODEL
The present invention has been made to solve the above technical problems, and other technical problems. To this end, an improved detection device for detecting a switching value output signal is provided.
According to an aspect of the present invention, there is provided a detection apparatus for detecting a switching amount output signal, the detection apparatus being configured to detect whether or not a switching amount output signal having a predetermined characteristic exists on a transmission path of the switching amount output signal, the detection apparatus including: a coupling member coupled to the transmission path; and at least one indicator light configured to be wirelessly electromagnetically coupled or wired electrically connected to a transmission path of the switching amount output signal through the coupling member, wherein the indicator light has an electric signal excitation element that is excited by only a predetermined electric signal to undergo a visible optical characteristic change, and the switching amount output signal having the predetermined characteristic present on the transmission path generates a predetermined electric signal that excites the electric signal excitation element through the coupling member.
According to an alternative embodiment of the present invention, the coupling member includes a first connection terminal electrically connected to the switching value output terminal and a second connection terminal electrically connected to a ground terminal, and the at least one indicator lamp is electrically connected between the first connection terminal and the second connection terminal directly through a conductor; or the coupling component is configured as an electromagnetic coupling component.
According to an alternative embodiment of the utility model, the at least one indicator light comprises a plurality of indicator lights cooperating with each other to indicate a plurality of switching value output signals having different predetermined characteristics.
According to an alternative embodiment of the utility model, the plurality of indicator lights comprise a first indicator unit indicating a long command direct current type switching value output signal and at least one second indicator unit indicating a short command pulse type switching value output signal.
According to an optional embodiment of the utility model, the first and second indication units each have a first and a second electrical connection end, wherein the first electrical connection end of one of the first and second indication units is electrically connected with the second electrical connection end of the other of the first and second indication units, or the first electrical connection ends of both the first and second indication units are electrically connected with each other and the second electrical connection ends of both the first and second indication units are electrically connected with each other.
According to an alternative embodiment of the utility model, the at least one second indicator unit comprises a first indicator element indicating a short-command pulse-type switching value output signal having a first frequency characteristic and a second indicator element indicating a short-command pulse-type switching value output signal having a second frequency characteristic different from the first frequency characteristic.
According to an optional embodiment of the utility model, the first indicating unit is configured to indicate a first switching amount output signal having a first predetermined characteristic with a first optical characteristic, the first indicating element is configured to indicate a second switching amount output signal having a second predetermined characteristic different from the first predetermined characteristic with a second optical characteristic different from the first optical characteristic, and the second indicating element is configured to indicate a third switching amount output signal having a third predetermined characteristic different from both the first predetermined characteristic and the second predetermined characteristic with a third optical characteristic different from both the first optical characteristic and the second optical characteristic.
According to an alternative embodiment of the utility model, the first indicating unit is configured to indicate a 24V long command dc type switching value output signal; and/or the first indicator element is configured to indicate a 2Hz short-instruction pulse-type switching value output signal; and/or the second indicator element is configured to indicate a short command pulse type switching value output signal of 0.5 Hz.
The detection device is particularly suitable for daily equipment detection, and can quickly detect and judge whether the output of the module has problems.
Drawings
The principles, features and advantages of the present invention may be better understood by describing the utility model in more detail below with reference to the accompanying drawings. The drawings comprise:
fig. 1 shows in a schematic principle diagram a detection device for detecting a switching value output signal according to an exemplary embodiment of the present invention.
Fig. 2 schematically shows a detection apparatus according to an exemplary embodiment of the present invention, in which a plurality of indicator lights are arranged.
Fig. 3 schematically shows a case where the detection device shown in fig. 2 lights up the first indicator element when detecting a short-command pulse type switching amount output signal of a certain frequency.
List of reference numerals:
1 detection device
11 first connection end
12 second connection end
13 indicator light
131 first indicating unit
132 second indicating unit
1321 first indicator element
1322 second indicator element
14 load bearing structure
2 switching value output module
21 switching value output terminal
3 ground terminal
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and exemplary embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and do not limit the scope of the utility model.
Fig. 1 shows in a schematic principle diagram a detection device for detecting a switching value output signal according to an exemplary embodiment of the present invention.
According to an aspect of the present invention, there is provided a detection apparatus for detecting a switching amount output signal, the detection apparatus being configured to detect whether or not a switching amount output signal having a predetermined characteristic exists on a transmission path of the switching amount output signal, the detection apparatus including: a coupling member coupled to the transmission path; and at least one indicator light configured to be wirelessly electromagnetically coupled or wired electrically connected to a transmission path of the switching amount output signal through the coupling member, wherein the indicator light is an indicator device in which a visible change in optical characteristic occurs only when the switching amount output signal having a predetermined characteristic is present on the transmission path. This display of the indicator light is different from oscilloscopes and multimeters in that it responds only to a switching value output signal having predetermined characteristics. For this purpose, the indicator lamp has an electrical signal excitation element which is excited only by a predetermined electrical signal to produce a visible change in the optical characteristic, and the switching value output signal having the predetermined characteristic present on the transmission path produces the predetermined electrical signal which excites the electrical signal excitation element by means of the coupling member. The detection device is described below by referring to an exemplary embodiment.
Here, as will be understood by those skilled in the art, the "characteristic" of the "predetermined characteristic" refers to a parameter or a variable that distinguishes the switching amount output signals from each other, and particularly refers to the frequency.
As shown in fig. 1, the detection apparatus 1, in particular, the coupling component thereof, may include: a first connection terminal 11 for electrical connection to a switching value output terminal 21 (see fig. 2) of the switching value output module 2; a second connection terminal 12 for electrical connection to the ground terminal 3 (see fig. 2); and at least one indicator light 13, wherein the indicator light 13 can be configured to directly and visually indicate whether the switching value output signal with the preset characteristic transmitted from the first connecting end 11 to the second connecting end 12 exists on the transmission path. The ground terminal 3 may be an actual ground terminal or a virtual ground terminal.
Here, it should be noted that "direct visual indication of the presence or absence … …" means that whether or not the corresponding switching value output signal is present can be determined directly by an optical change, such as a brightness change, which can be directly detected by human eyes, which is presented by an indicator light, without presenting or reproducing the switching value output signal in a specific quantification, and thus is different from a graphic display manner of an oscilloscope or a multimeter. For example, whether the corresponding switching value output signal exists can be judged by turning on or off the indicator lamp.
It can be understood that when it is only necessary to determine whether a certain switching value output terminal correctly outputs a certain type of switching value output signal, only one indicator lamp may be used to determine whether the type of switching value output signal exists. For example, when it is only necessary to determine whether or not a certain switching value output terminal correctly outputs a long-command DC-type switching value output signal, for example, a 24V DC signal, it can be determined by observing on/off of the indicator lamp, and when the long-command DC-type switching value output signal is detected, the indicator lamp is on, otherwise, the indicator lamp is off. The "length of the command" refers to a time length during which the switching value signal is continuously at the high potential or the low potential. Those skilled in the art will appreciate that the terms "long instruction" and "short instruction" are used herein in a relative sense.
Of course, to better draw the attention of the inspector or to better facilitate the observation of the inspector, it may also be presented in a blinking or color-changing manner. For example, red or non-flashing means may be used to indicate that the corresponding switching value output signal is not detected, while green or flashing means may be used to indicate that the corresponding switching value output signal is detected. Here, those skilled in the art will understand that the method is not limited to the above method, as long as the inspector can directly determine the optical change of the indicator light.
When the detection operation is in a complex detection environment such as a higher position or an extremely low position, the on and off of the circuit (the existence of a switching value output signal) can be intuitively judged through the direct visual indication of the indicating lamp, the step of checking the voltage value and/or the frequency by a measurer is reduced, and the test rapidness and the test safety are greatly improved.
According to an exemplary embodiment of the present invention, the at least one indicator light 13 may be directly electrically connected between the first connection terminal 11 and the second connection terminal 12 by a conductor. In this case, the switching value output signal is directly transmitted through the indicator lamp 13, so that the detection device can be simplified. Of course, it is also conceivable for the person skilled in the art to arrange the indicator light in an electromagnetically coupled manner, as described above. For example, the detection device 1 may be provided in the vicinity of an electric circuit, and an indicator lamp may be operated by electromagnetic induction. At this time, the coupling part is configured as an electromagnetic coupling part.
In order to extend the versatility of the detection device, according to an exemplary embodiment of the present invention, the at least one indicator light 13 may comprise a plurality of indicator lights for cooperating with each other to indicate a plurality of switching value output signals having different specific characteristics. Thus, it is possible to allow detection of a plurality of switching amount output terminals or different output states of the same switching amount output terminal using the same detection means.
Fig. 2 schematically shows a detection apparatus according to an exemplary embodiment of the present invention, in which a plurality of indicator lamps are arranged.
As shown in fig. 2, the plurality of indicator lamps may include a first indication unit 131 for indicating a long-command direct-current type switching amount output signal and at least one second indication unit 132 for indicating a short-command pulse type switching amount output signal according to an exemplary embodiment of the present invention.
In this case, the detection device 1 preferably further comprises a carrying structure 14 for carrying the plurality of indicator lights. This facilitates the fixing and holding of the indicator light.
Those skilled in the art will even appreciate that in principle, when detecting a plurality of switching value output signals having different predetermined characteristics, it is not necessary to use a corresponding number of indicator lights. For example, when two switching amount output signals are detected, two states of one detection device may be used for presentation. For another example, when three or four switching value output signals of different characteristics are detected, a combined indication of two indicator lights may be used to present the corresponding detection result.
According to an exemplary embodiment of the present invention, the first indicating unit 131 and the at least one second indicating unit 132 may each have a first electrical connection terminal and a second electrical connection terminal (not separately shown) according to the characteristics of the indicating units themselves, and the first indicating unit 131 and the at least one second indicating unit 132 may be disposed in series or in parallel with each other through their first electrical connection terminals and second electrical connection terminals, as long as the indicating lamp can correspondingly and uniquely indicate in case of a certain switching amount output signal.
As a further exemplary embodiment, the at least one second indicating unit 132 may include a first indicating element 1321 for indicating a short-instruction pulse-type switching amount output signal having a first frequency characteristic, for example, a 2Hz short-instruction pulse-type switching amount output signal, and a second indicating element 1322 for indicating a short-instruction pulse-type switching amount output signal having a second frequency characteristic different from the first frequency characteristic, for example, a 0.5Hz short-instruction pulse-type switching amount output signal.
According to an exemplary embodiment of the present invention, the first indicating unit 131, said first indicating element 1321 and said second indicating element 1322 are arranged in a row, as shown in fig. 2.
Fig. 3 exemplarily shows a case where the first indicator element 1321 is lighted when the detection device shown in fig. 2 detects a short-instruction pulse type switching amount output signal of, for example, 2 Hz.
The detection device is particularly suitable for daily equipment detection, because in order to quickly detect and judge whether the output of the module has problems, the frequency change of the pulse signal is simply measured, parameters such as the phase difference and the pulse width of the voltage do not need to be accurately adjusted, and therefore the loop can be quickly checked and faults can be eliminated.
Although specific embodiments of the utility model have been described herein in detail, they have been presented for purposes of illustration only and are not to be construed as limiting the scope of the utility model. Various substitutions, alterations, and modifications may be devised without departing from the spirit and scope of the present invention.
Claims (8)
1. A detection device (1) for detecting a switching value output signal, the detection device (1) being configured to detect whether a switching value output signal having a predetermined characteristic is present on a transmission path of the switching value output signal, the detection device (1) comprising:
a coupling member coupled to the transmission path; and
at least one indicator light (13), wherein the at least one indicator light (13) is configured to be wirelessly and electromagnetically coupled or wired and electrically connected to a transmission path of the switching value output signal through the coupling member, wherein the indicator light (13) has an electrical signal excitation element which is excited by a predetermined electrical signal only to undergo a visible optical characteristic change, and the switching value output signal with the predetermined characteristic existing on the transmission path generates the predetermined electrical signal exciting the electrical signal excitation element through the coupling member.
2. Detection device (1) for detecting a switching value output signal according to claim 1,
the coupling part comprises a first connection end (11) electrically connected to the switching value output terminal (21) and a second connection end (12) electrically connected to the ground terminal (3), and the at least one indicator light (13) is electrically connected between the first connection end (11) and the second connection end (12) directly through a conductor; or
The coupling component is configured as an electromagnetic coupling component.
3. Detection device (1) for detecting a switching value output signal according to claim 1 or 2,
the at least one indicator light (13) comprises a plurality of indicator lights cooperating with each other to indicate a plurality of switching value output signals having different predetermined characteristics.
4. Detection device (1) for detecting a switching value output signal according to claim 3,
the plurality of indicator lamps include a first indicator unit (131) indicating a long-command direct-current type switching amount output signal and at least one second indicator unit (132) indicating a short-command pulse type switching amount output signal.
5. Detection device (1) for detecting a switching value output signal according to claim 4,
the first indication unit (131) and the second indication unit (132) each have a first electrical connection end and a second electrical connection end, wherein the first electrical connection end of one of the first indication unit (131) and the second indication unit (132) is electrically connected with the second electrical connection end of the other of the first indication unit (131) and the second indication unit (132), or the first electrical connection ends of both the first indication unit (131) and the second indication unit (132) are electrically connected with each other and the second electrical connection ends of both the first indication unit (131) and the second indication unit (132) are electrically connected with each other.
6. Detection apparatus (1) for detecting a switching value output signal according to claim 4 or 5,
the at least one second indicating unit (132) includes a first indicating element (1321) indicating a short-command pulse type switching amount output signal having a first frequency characteristic and a second indicating element (1322) indicating a short-command pulse type switching amount output signal having a second frequency characteristic different from the first frequency characteristic.
7. Detection device (1) for detecting a switching value output signal according to claim 6,
the first indicating unit (131) is configured to indicate a first switching amount output signal having a first predetermined characteristic with a first optical characteristic, the first indicating element (1321) indicates a second switching amount output signal having a second predetermined characteristic different from the first predetermined characteristic with a second optical characteristic different from the first optical characteristic, and the second indicating element (1322) is configured to indicate a third switching amount output signal having a third predetermined characteristic different from both the first predetermined characteristic and the second predetermined characteristic with a third optical characteristic different from both the first optical characteristic and the second optical characteristic.
8. Detection device (1) for detecting a switching value output signal according to claim 6,
the first indicating unit (131) is configured to indicate a switching value output signal of a long instruction direct current type of 24V; and/or
The first indication element (1321) is configured to indicate a 2Hz short-instruction pulse-type switching value output signal; and/or
The second indicator element (1322) is configured to indicate a short command pulse type switching value output signal of 0.5 Hz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122345802.4U CN216209522U (en) | 2021-09-26 | 2021-09-26 | Detection device for detecting switching value output signal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122345802.4U CN216209522U (en) | 2021-09-26 | 2021-09-26 | Detection device for detecting switching value output signal |
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| Publication Number | Publication Date |
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| CN216209522U true CN216209522U (en) | 2022-04-05 |
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| CN202122345802.4U Active CN216209522U (en) | 2021-09-26 | 2021-09-26 | Detection device for detecting switching value output signal |
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| CP01 | Change in the name or title of a patent holder |
Address after: 211100 No.37 Yihuai street, Jiangning Economic and Technological Development Zone, Nanjing, Jiangsu Province Patentee after: Siemens Energy Automation (Nanjing) Co.,Ltd. Address before: 211100 No.37 Yihuai street, Jiangning Economic and Technological Development Zone, Nanjing, Jiangsu Province Patentee before: SIEMENS POWER PLANT AUTOMATION Ltd. |
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