CN109406896B - External control device and method for oscilloscope - Google Patents
External control device and method for oscilloscope Download PDFInfo
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- CN109406896B CN109406896B CN201811201945.4A CN201811201945A CN109406896B CN 109406896 B CN109406896 B CN 109406896B CN 201811201945 A CN201811201945 A CN 201811201945A CN 109406896 B CN109406896 B CN 109406896B
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Abstract
The embodiment of the invention relates to the technical field of oscilloscopes, in particular to an external control device and method of an oscilloscope. The external control device of the oscilloscope comprises a body, a first trigger assembly, a second trigger assembly, a signal processing assembly and a signal transmission line, wherein a cavity is formed in the body, the signal processing assembly is arranged in the cavity and fixedly connected to the body, the first trigger assembly is movably connected to the body, the second trigger assembly is movably connected to the position, far away from the first trigger assembly, of the body, the first trigger assembly and the second trigger assembly are foot-operated, the first trigger assembly and the second trigger assembly are both in communication connection with the signal processing assembly, and one end of the signal transmission line is in communication connection with the signal processing assembly, and the other end of the signal transmission line is in communication connection with the oscilloscope. By adopting the external control device and method for the oscilloscope, the reliability of the oscilloscope test can be improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of oscilloscopes, in particular to an external control device and method of an oscilloscope.
Background
In electronic product development or testing, two probes of an oscilloscope are often used for simultaneously testing signal waveforms, but the reliability is lower when the conventional oscilloscope is used for testing the signal waveforms.
Disclosure of Invention
In view of this, the invention provides an external control device and method for an oscilloscope, which can improve the reliability of the oscilloscope test.
The embodiment of the invention provides an external control device of an oscilloscope, which comprises a body, a first trigger assembly, a second trigger assembly, a signal processing assembly and a signal transmission line, wherein the first trigger assembly is connected with the body;
the signal processing assembly is arranged in the cavity and is fixedly connected to the body;
the first trigger assembly is movably connected to the body, the second trigger assembly is movably connected to a position, far away from the first trigger assembly, of the body, and the first trigger assembly and the second trigger assembly are foot-operated;
the first trigger assembly and the second trigger assembly are in communication connection with the signal processing assembly, one end of the signal transmission line is in communication connection with the signal processing assembly, and the other end of the signal transmission line is in communication connection with an oscilloscope.
Optionally, the signal processing component comprises a first counter, a second counter and a signal processor;
the first counter, the second counter and the signal processor are contained in the cavity and fixedly connected to the inner bottom wall of the body;
the first counter is in communication connection with the first trigger assembly, and the first counter is in communication connection with the signal processor;
the second counter is in communication connection with the second trigger assembly, and the second counter is in communication connection with the signal processor;
one end of the signal transmission line is in communication connection with the signal processor.
Optionally, a timer is disposed in the first counter, and the timer is in communication connection with the first counter.
Optionally, the first trigger assembly comprises a first pedal, a first spring, and a first pressure gauge; the second trigger assembly comprises a second pedal, a second spring and a second pressure gauge;
the first pressure gauge is fixedly connected to the inner bottom wall of the body and is positioned in the cavity at a position close to the first counter and far away from the signal processor; one end of the first spring is fixedly connected with the first pressure gauge, the other end of the first spring penetrates through the top wall of the body and is arranged outside the body, and the first pedal is fixedly connected with the other end of the first spring;
the second pressure gauge is fixedly connected to the inner bottom wall of the body and is positioned in the cavity close to the second counter and far away from the signal processor; one end of the second spring is fixedly connected with the second pressure gauge, the other end of the second spring penetrates through the top wall of the body and is arranged outside the body, and the second pedal is fixedly connected with the other end of the second spring.
The embodiment of the invention also provides an external control method of the oscilloscope, which is applied to the external control device of the oscilloscope, and the method comprises the following steps:
the method comprises the steps that a first trigger assembly detects whether first external pressure exists, if so, a first pressure value of the first external pressure is obtained, whether the first pressure value reaches a first set value is judged, and if the first pressure value reaches the first set value, a first trigger signal is transmitted to a signal processing assembly;
the signal processing assembly receives the first trigger signal, generates an operation instruction according to the first trigger signal, and transmits the operation instruction to the oscilloscope through the signal transmission line;
the second trigger assembly detects whether a second external pressure exists, if the second external pressure exists, a second pressure value of the second external pressure is obtained, whether the second pressure value reaches a second set value is judged, and if the second pressure value reaches the second set value, a second trigger signal is transmitted to the signal processing assembly;
and the signal processing assembly receives the second trigger signal, generates a stop instruction according to the second trigger signal, and transmits the stop instruction to the oscilloscope through the signal transmission line.
Optionally, the first trigger assembly comprises a first pedal, a first spring and a first pressure gauge, the first spring is connected between the first pedal and the first pressure gauge, and the first pressure gauge is in communication connection with the signal processing assembly; the first triggering component judges whether the first pressure value reaches a first set value, and if the first pressure value reaches the first set value, the step of transmitting a first triggering signal to the signal processing component comprises the following steps:
the first pressure gauge obtains a first pressure value of first external pressure transmitted by the first pedal and the first spring, judges whether the first pressure value reaches a first set value or not, and transmits a first trigger signal to the signal processing assembly if the first pressure value reaches the first set value.
Optionally, the signal processing assembly includes a first counter and a signal processor, the first counter is respectively in communication connection with the first pressure gauge and the signal processor, and the signal processor is in communication connection with the oscilloscope through the signal transmission line; the signal processing assembly receives the first trigger signal, generates an operation instruction according to the first trigger signal, and transmits the operation instruction to the oscilloscope through the signal transmission line, and the method comprises the following steps:
the first counter receives a first trigger signal transmitted by the first pressure gauge, counts the first trigger signal to generate a first count value, judges whether a third trigger signal is received within a duration set time, and transmits the first count value to the signal processor if the third trigger signal is not received within the duration set time;
and the signal processor receives the first count value, generates an operation instruction according to the first count value, and transmits the operation instruction to the oscilloscope through the signal transmission line.
Optionally, the method further comprises:
the signal processor sends an initialization instruction to the first counter after receiving the first counting value;
and the first counter receives the initialization instruction and initializes the first counter.
Optionally, the method further comprises:
if the first counter receives a third trigger signal within the duration setting time, counting the third trigger signal on the basis of the first count value to obtain a second count value, and transmitting the second count value to the signal processor;
and the signal processor receives the second count value, generates a screen clearing instruction according to the second count value, and transmits the screen clearing instruction to the oscilloscope through the signal transmission line.
Optionally, the method further comprises:
the first trigger component obtains a first modification instruction for modifying the first set value, and modifies the first set value according to the first modification instruction;
and the second trigger component obtains a second modification instruction for modifying the second set value, and modifies the second set value according to the second modification instruction.
According to the external oscilloscope control device and the external oscilloscope control method provided by the embodiment of the invention, the pedal first trigger component and the pedal second trigger component can enable a worker to control the operation and stop of the oscilloscope through two feet, so that the worker can release two hands, and the probe of the oscilloscope is controlled through the two hands, so that the reliability of signal waveform testing by the oscilloscope is improved.
Furthermore, the first trigger assembly and the second trigger assembly can judge whether the obtained pressure value reaches a corresponding set value in advance, and if the obtained pressure value reaches the corresponding set value, corresponding trigger signals can be sent to the signal processing assembly, so that the anti-interference performance of the whole device can be improved, false trigger signals caused by misoperation of workers can be avoided, meanwhile, the first set value and the second set value can be modified according to actual conditions (the weight of the workers), the use flexibility of the whole device is improved, and the reliability of the external control device of the oscilloscope is further improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of an external oscilloscope control device according to an embodiment of the present invention.
Fig. 2 is a flowchart of an external oscilloscope control method according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of an oscilloscope test system according to an embodiment of the present invention.
Fig. 4 is a block diagram of an oscilloscope testing system according to an embodiment of the present invention.
Icon:
100-an external control device of an oscilloscope; 200-oscilloscope test systems;
1-body; 11-a cavity; 12-a top wall; 13-inner bottom wall;
2-a first trigger component; 21-a first pedal; 22-a first spring; 23-a first pressure gauge;
3-a second trigger component; 31-a second pedal; 32-a second spring; 33-a second pressure gauge;
4-a signal processing component; 41-a first counter; 411-a timer; 42-a second counter; 43-a signal processor;
5-a signal transmission line;
6-an oscilloscope; 61-oscilloscope interface; 62-oscilloscope CPU.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "connected," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The inventor finds that the reliability of a worker who uses the existing oscilloscope to test the signal waveform is low, and the reason is that the worker is difficult to conveniently operate the trigger button and the probe of the oscilloscope. Specifically, during the test, the staff can only touch two probes with one hand simultaneously mostly, then operate the oscilloscope with the other hand, but because one hand hardly stabilizes two test points that the point touched the position difference simultaneously, when needing the afterglow test, it is more difficult to stabilize the point and touch for a long time, can cause the probe to slide, can not measure stable signal, and more victory causes the short circuit, damages relevant equipment.
The above prior art solutions have shortcomings which are the results of practical and careful study of the inventor, and therefore, the discovery process of the above problems and the solutions proposed by the following embodiments of the present invention to the above problems should be the contribution of the inventor to the present invention in the course of the present invention.
Based on the research, the embodiment of the invention provides an external oscilloscope control device and an external oscilloscope control method.
Fig. 1 shows a schematic structural diagram of an external oscilloscope control device 100 according to an embodiment of the present invention, and as can be seen from the figure, the external oscilloscope control device 100 includes a main body 1, a first trigger component 2, a second trigger component 3, a signal processing component 4, and a signal transmission line 5.
The first trigger assembly 1 and the second trigger assembly 2 are pedal-type, the first trigger assembly 2 includes a first pedal 21, a first spring 22 and a first pressure gauge 23, the second trigger assembly 3 includes a second pedal 31, a second spring 32 and a second pressure gauge 33, and further, the signal processing assembly 4 includes a first counter 41, a second counter 42 and a signal processor 43.
Referring to fig. 1, the inside of the main body 1 is a cavity 11, the first counter 41, the second counter 42 and the signal processor 43 are accommodated in the cavity 11 and fixedly connected to the inner bottom wall 13 of the main body 1, the first pressure gauge 23 and the second pressure gauge 33 are also fixedly connected to the inner bottom wall 13, the first pressure gauge 23 is close to the first counter 41, and the second pressure gauge 33 is close to the second counter 42.
The first pressure gauge 23 is in communication connection with the first counter 41, the first counter 41 is in communication connection with the signal processor 43, the second pressure gauge 33 is in communication connection with the second counter 42, the second counter 42 is in communication connection with the signal processor 43, one end of the signal transmission line 5 is in communication connection with the signal processor 43, and the other end of the signal transmission line is in communication connection with an oscilloscope 6.
Further, one end of the first spring 22 is fixedly connected to the first pressure gauge 23, the other end of the first spring passes through the top wall 12 of the body 1 and is disposed outside the body 1, the first pedal 21 is fixedly connected to the other end of the first spring 22, one end of the second spring 32 is fixedly connected to the second pressure gauge 33, the other end of the second spring passes through the top wall 12 of the body 1 and is disposed outside the body 1, and the second pedal 31 is fixedly connected to the other end of the second spring 32.
As shown in fig. 1, when using the oscilloscope, a worker may control the operation and the stop of the oscilloscope by using the external oscilloscope control device 100, and it can be understood that the worker may control the operation and the stop of the oscilloscope by using the first pedal 21 and the second pedal 31, for example, the first pedal 21 is a start pedal, the second pedal 31 is a stop pedal, the signal transmission line 5 is connected to a CPU of the oscilloscope, and when the signal transmission line 5 is inserted into the oscilloscope, the CPU of the oscilloscope can detect the access of the external oscilloscope control device 100, and further activate the external oscilloscope control device 100.
It can be understood that, compared with the existing foot-controlled peripheral, the external oscilloscope control device 100 has strong anti-interference performance, stable control and flexible use, and specifically, please refer to fig. 2 in combination, which is a flowchart of an external oscilloscope control method provided by an embodiment of the present invention, and the external oscilloscope control method is applied to the external oscilloscope control device 100 shown in fig. 1, and specifically, the following steps are performed:
in step S21, the first pressure gauge obtains a first pressure value of the first external pressure transmitted by the first pedal and the first spring, and determines whether the first pressure value reaches a first set value.
For example, when the operator uses the external oscilloscope control device 100, the operator may step on the first pedal 21 with the left foot, the first pedal 21 transmits the pressure (first external pressure) generated by the left foot step to the first pressure gauge 23 through the first spring 22, and the first pressure gauge 23 obtains the first pressure value F of the first external pressure1。
Further, the first pressure gauge 23 will determine the first pressure value F1Whether or not the first set value V is reached1If yes, the process proceeds to step S22, and if not, no operation is performed. With such an arrangement, the reliability of the method can be improved, for example, if the operator steps on the first pedal 21 due to misoperation, and if the stepping force is small, the first set value V is not exceeded1The first pressure gauge 23 does not perform any operation, and thus it is prevented from receiving a small stepping force to perform a wrong operation.
In step S22, the first pressure gauge transmits a first trigger signal to the first counter, and the first counter receives the first trigger signal for counting to generate a first count value.
It will be appreciated that when the first pressure value F is reached1Reaches the first set value V1The first pressure gauge 23 will transmit the first trigger signal to the first counter 41.
The first counter 41 receives the first trigger signal and then starts counting to generate a first count value, for example, the first counter 41 initially has a count value of zero, and after receiving the first trigger signal, the first count value is "1".
In step S23, the first counter determines whether the third trigger signal is received within the duration of the set time.
Further, the first counter 41 is further provided with a timer 411, and the timer 411 is connected in communication with the first counter 41. It will be appreciated that timer 411 is used to assist whether first counter 41 continuously receives a trigger signal. In the oscilloscope control, the control instruction includes an operation instruction, a screen clearing instruction and a stop instruction, wherein the timer 411 and the first counter 41 are used for judging the operation instruction and the screen clearing instruction.
Specifically, after the first counter 41 receives the first trigger signal, the timer 411 starts counting, if the first counter receives the third trigger signal within the duration set time (e.g., 500ms), the timer 411 sends a prompt instruction to the first counter 41, and after the first counter 41 receives the prompt instruction, it determines that the reception of the third trigger signal is within the duration set time, and then the process goes to step S24. It is understood that if the third trigger signal is not received by the first counter within the duration of the set time period, the process goes to step S26.
It will be appreciated that a third trigger signal is also sent by the first pressure gauge 23.
In step S24, the first counter counts the third trigger signal on the basis of the first count value to obtain a second count value, and sends the second count value to the signal processor.
For example, the first counter 41 counts the third trigger signal on the basis of the first count value "1", obtains a second count value "2", and sends the second count value to the signal processor 43.
And step S25, the signal processor receives the second count value, generates a screen clearing instruction according to the second count value, and transmits the screen clearing instruction to the oscilloscope through the signal transmission line.
It will be appreciated that if the signal processor 43 receives the second count value of "2", it generates a clear + auto instruction and transmits the clear instruction to the oscilloscope.
In step S26, the first counter sends the first count value to the signal processor.
And step S27, the signal processor receives the first count value, generates an operation instruction according to the first count value, and transmits the operation instruction to the oscilloscope through the signal transmission line.
It will be appreciated that if the signal processor 43 receives the first count value "1", an operation instruction (auto) is generated and transmitted to the oscilloscope.
It can be understood that, through steps S21 to S27, reliable control of the oscilloscope running and screen clearing can be achieved, and through the first setting value and the duration setting time, the consequences caused by misoperation of the operator can be minimized, and optionally, the duration setting time can be modified, for example, the duration setting time is appropriately increased, so that frequent pressing of the first pedal 21 by the operator when performing the screen clearing operation can be avoided, and convenience can also be provided for some operators with slower response, and for some operators with slower response, if the duration setting time is shorter, the time may exceed the duration setting time when pressing for the second time, that is, the operator should perform the screen clearing operation, and the result becomes running operation, which may cause reduction of test reliability, and therefore, the duration setting time is appropriately increased for the operators with slower response, these workers can more accurately step on the first pedal 21.
Referring to fig. 3, another flowchart of an external oscilloscope control method according to an embodiment of the present invention is shown, it can be understood that the method shown in fig. 3 is used for turning off an oscilloscope, and includes the following specific steps:
in step S31, the second pressure gauge obtains a second pressure value of the second external pressure transmitted from the second pedal and the second spring, and determines whether the second pressure value reaches a second set value.
For example, when the operator is ready to turn off the oscilloscope, the second pedal 31 may be stepped on by the right foot, the second pedal 31 transmits the pressure (second external pressure) generated by the stepping on by the right foot to the second pressure gauge 33 by the second spring 32, and the second pressure gauge 33 obtains a second pressure value F of the second external pressure2。
Further, the second pressure gauge 33 will determine the second pressure value F2Whether or not the second set value V is reached2If yes, the process proceeds to step S32, and if not, no operation is performed. So arranged, the worker can be avoidedThe second pedal 31 is stepped by the operator by mistake to cause the oscilloscope to be closed, so that the reliability of control is improved.
In step S32, the second pressure gauge transmits a second trigger signal to the second counter, and the second counter receives the second trigger signal to count to generate a third count value.
The second counter 42 receives the second trigger signal and then starts counting to generate a third count value, for example, the second counter 42 initially counts to zero and generates a third count value of "1" after receiving the second trigger signal.
In step S33, the second counter sends the third count value to the signal processor.
And step S34, the signal processor receives the third counting value, generates a closing instruction according to the third counting value, and transmits the closing instruction to the oscilloscope through the signal transmission line.
The signal processor 43 receives the third count value "1", generates a stop instruction (stop), and transmits the stop instruction to the oscilloscope.
Referring to fig. 4, which is a block diagram of an oscilloscope testing system 200 according to an embodiment of the present invention, it can be seen that the signal processor 43 receives the related count values from the first counter 41 and the second counter 42, generates corresponding control instructions (an operation instruction, a screen clearing instruction, and a stop instruction) according to the related count values, and transmits the control instructions to the oscilloscope CPU62 through the oscilloscope interface 61.
Alternatively, the first set value and the second set value may be modified according to actual conditions, for example, the first pressure gauge 21 may obtain a first modification instruction, the first set value is modified according to the first modification instruction, the second pressure gauge 31 may obtain a second modification instruction, and the second set value is modified according to the second modification instruction. In this way, the first set value and the second set value can be adjusted according to the actual condition of the worker, for example, if the weight of the worker is large and the force of the worker pressing the worker is large, the first set value and the second set value can be increased appropriately, and if the weight of the worker is small, the first set value and the second set value can be decreased appropriately, or the first set value and the second set value can be adjusted according to the actual demand of the worker.
Optionally, after receiving the first count value or the second count value, the signal processor 43 sends an initialization instruction to the first counter 41, and the first counter 41 receives and initializes the initialization instruction, it is understood that the count value of the first counter 41 after initialization is "0", and similarly, after receiving the third count value, the signal processor 43 sends an initialization instruction to the second counter 42, and the second counter 42 receives and initializes the initialization instruction, and initializes the count value to "0".
In summary, the external oscilloscope control device and the external oscilloscope control method provided by the embodiment of the invention have the advantages that the structure is skillfully designed, the operation, screen clearing and stopping operations of the oscilloscope can be controlled by a worker through two feet, and the reliability, flexibility and anti-interference performance of the oscilloscope test are improved by setting the trigger condition, so that the correctness and stability of the tested signal are ensured.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. An external control device of an oscilloscope is characterized by comprising a body, a first trigger component, a second trigger component, a signal processing component and a signal transmission line;
the signal processing assembly is arranged in the cavity and is fixedly connected to the body;
the first trigger assembly is movably connected to the body, the second trigger assembly is movably connected to a position, far away from the first trigger assembly, of the body, and the first trigger assembly and the second trigger assembly are foot-operated;
the first trigger assembly and the second trigger assembly are in communication connection with the signal processing assembly, one end of the signal transmission line is in communication connection with the signal processing assembly, and the other end of the signal transmission line is in communication connection with an oscilloscope;
the signal processing assembly comprises a first counter, a second counter and a signal processor;
the first counter, the second counter and the signal processor are contained in the cavity and fixedly connected to the inner bottom wall of the body;
the first counter is in communication connection with the first trigger assembly, and the first counter is in communication connection with the signal processor;
the second counter is in communication connection with the second trigger assembly, and the second counter is in communication connection with the signal processor;
one end of the signal transmission line is connected to the signal processor in a communication mode;
a timer is arranged in the first counter and is in communication connection with the first counter;
the first trigger assembly comprises a first pedal, a first spring and a first pressure gauge; the second trigger assembly comprises a second pedal, a second spring and a second pressure gauge;
the first pressure gauge is fixedly connected to the inner bottom wall of the body and is positioned in the cavity at a position close to the first counter and far away from the signal processor; one end of the first spring is fixedly connected with the first pressure gauge, the other end of the first spring penetrates through the top wall of the body and is arranged outside the body, and the first pedal is fixedly connected with the other end of the first spring;
the second pressure gauge is fixedly connected to the inner bottom wall of the body and is positioned in the cavity close to the second counter and far away from the signal processor; one end of the second spring is fixedly connected with the second pressure gauge, the other end of the second spring penetrates through the top wall of the body and is arranged outside the body, and the second pedal is fixedly connected with the other end of the second spring.
2. An external oscilloscope control method, which is applied to the external oscilloscope control device of claim 1, the method comprising:
the method comprises the steps that a first trigger assembly detects whether first external pressure exists, if so, a first pressure value of the first external pressure is obtained, whether the first pressure value reaches a first set value is judged, and if the first pressure value reaches the first set value, a first trigger signal is transmitted to a signal processing assembly;
the signal processing assembly receives the first trigger signal, generates an operation instruction according to the first trigger signal, and transmits the operation instruction to the oscilloscope through the signal transmission line;
the second trigger assembly detects whether a second external pressure exists, if the second external pressure exists, a second pressure value of the second external pressure is obtained, whether the second pressure value reaches a second set value is judged, and if the second pressure value reaches the second set value, a second trigger signal is transmitted to the signal processing assembly;
and the signal processing assembly receives the second trigger signal, generates a stop instruction according to the second trigger signal, and transmits the stop instruction to the oscilloscope through the signal transmission line.
3. The external oscilloscope control method according to claim 2, wherein the first trigger assembly comprises a first pedal, a first spring and a first pressure gauge, the first spring is connected between the first pedal and the first pressure gauge, and the first pressure gauge is in communication connection with the signal processing assembly; the first triggering component judges whether the first pressure value reaches a first set value, and if the first pressure value reaches the first set value, the step of transmitting a first triggering signal to the signal processing component comprises the following steps:
the first pressure gauge obtains a first pressure value of first external pressure transmitted by the first pedal and the first spring, judges whether the first pressure value reaches a first set value or not, and transmits a first trigger signal to the signal processing assembly if the first pressure value reaches the first set value.
4. The external oscilloscope control method according to claim 3, wherein the signal processing module comprises a first counter and a signal processor, the first counter is in communication connection with the first pressure gauge and the signal processor respectively, and the signal processor is in communication connection with the oscilloscope through the signal transmission line; the signal processing assembly receives the first trigger signal, generates an operation instruction according to the first trigger signal, and transmits the operation instruction to the oscilloscope through the signal transmission line, and the method comprises the following steps:
the first counter receives a first trigger signal transmitted by the first pressure gauge, counts the first trigger signal to generate a first count value, judges whether a third trigger signal is received within a duration set time, and transmits the first count value to the signal processor if the third trigger signal is not received within the duration set time;
and the signal processor receives the first count value, generates an operation instruction according to the first count value, and transmits the operation instruction to the oscilloscope through the signal transmission line.
5. The external oscilloscope control method according to claim 4, further comprising:
the signal processor sends an initialization instruction to the first counter after receiving the first counting value;
and the first counter receives the initialization instruction and initializes the first counter.
6. The external oscilloscope control method according to claim 4, further comprising:
if the first counter receives a third trigger signal within the duration setting time, counting the third trigger signal on the basis of the first count value to obtain a second count value, and transmitting the second count value to the signal processor;
and the signal processor receives the second count value, generates a screen clearing instruction according to the second count value, and transmits the screen clearing instruction to the oscilloscope through the signal transmission line.
7. The external oscilloscope control method according to claim 2, further comprising:
the first trigger component obtains a first modification instruction for modifying the first set value, and modifies the first set value according to the first modification instruction;
and the second trigger component obtains a second modification instruction for modifying the second set value, and modifies the second set value according to the second modification instruction.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811201945.4A CN109406896B (en) | 2018-10-15 | 2018-10-15 | External control device and method for oscilloscope |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811201945.4A CN109406896B (en) | 2018-10-15 | 2018-10-15 | External control device and method for oscilloscope |
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| CN109406896A CN109406896A (en) | 2019-03-01 |
| CN109406896B true CN109406896B (en) | 2020-12-11 |
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| CN201811201945.4A Active CN109406896B (en) | 2018-10-15 | 2018-10-15 | External control device and method for oscilloscope |
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