Oscilloscope fault autonomous detection system
Through the temperature change detection and alarm of the oscilloscope fault autonomous detection system, the problem of difficult to control the oscilloscope preheating time under different climatic conditions is solved, and accurate self-test status detection and convenient operation process are achieved.
Patent Information
- Application Number
- CN202420789491.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-17
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-04-17
AI Technical Summary
The preheating time of existing oscilloscopes is difficult to accurately control under different climatic conditions, which affects the self-test results, and operators need to wait 15 minutes to waste time.
An oscilloscope fault autonomous detection system is designed, including a temperature change detection module, a signal processing module and an alarm. The internal temperature of the oscilloscope is detected in real time through a temperature sensor, and the temperature change amount is automatically compared within the set time interval. When the temperature is stable, A prompt signal is sent, and the operator can perform self-test operations in a timely manner.
It realizes accurate detection of the oscilloscope preheating state under different climatic conditions, reduces the impact of temperature difference on the self-test results, improves operation convenience, and avoids the problem of wasting time when waiting for preheating.
Smart Images
Figure CN222259560U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of oscilloscopes, and in particular to an oscilloscope fault autonomous detection system. Background Art
[0002] In circuit design, an oscilloscope is an indispensable debugging and testing tool for circuit boards. After a certain period of use, a common oscilloscope requires the operator to perform a self-test on the oscilloscope to ensure the accuracy of the various values of the oscilloscope test circuit board.
[0003] In the prior art, when an operator performs a self-test on an oscilloscope, the operator ensures that the oscilloscope is preheated for 15 minutes in advance so that the internal temperature of the oscilloscope tends to be stable and the adverse effects of temperature differences on the front-end analog parameters of the oscilloscope are reduced. After the preheating is completed, the operator needs to remove the probe, converter, signal connection, etc. connected to the oscilloscope, and then control the oscilloscope to perform a self-test through the buttons on the oscilloscope main interface menu. When the oscilloscope display shows the word "PASS", it can be determined that the oscilloscope has passed the self-test and can be used normally.
[0004] However, due to the influence of different seasons, different climates and different weather, the time required for preheating varies. When the temperature is low, the same preheating time is difficult to ensure that the internal temperature of the oscilloscope reaches the required temperature, and it is difficult to achieve accurate self-test results; when the temperature is high, the oscilloscope can reach the required temperature value in a shorter running time. Waiting for preheating for 15 minutes wastes the operator's time spent on performing self-test operations on the oscilloscope, and there is room for improvement. Utility Model Content
[0005] In order to accurately detect the preheating state of an oscilloscope before self-testing and improve the convenience for operators to perform self-testing on the oscilloscope, the present application provides an oscilloscope fault self-detection system.
[0006] The present application provides an oscilloscope fault autonomous detection system that adopts the following technical solution:
[0007] An oscilloscope fault autonomous detection system includes an oscilloscope body and:
[0008] A control panel, arranged on the oscilloscope body, and a signal is used to input a preheating start signal;
[0009] A temperature change detection module, fixedly installed in the oscilloscope body, connected to the signal output terminal of the control panel, for receiving the preheating start signal and detecting the temperature difference inside the oscilloscope body and outputting a temperature change signal;
[0010] A signal processing module, connected to the signal output terminal of the temperature change detection module, for receiving and comparing the temperature change signal, and outputting a prompt signal when the temperature change value is less than a set value;
[0011] The alarm is fixedly mounted on the oscilloscope body, and the signal input end is connected to the signal output end of the signal processing module, and is used for receiving the prompt signal and issuing a warning message.
[0012] By adopting the above technical solution, when the operator performs a fault self-test operation on the oscilloscope, the power supply of the oscilloscope can be connected first, the oscilloscope can be started, and a preheating start signal can be input through the button on the control panel. After receiving the preheating start signal, the temperature change detection module detects the temperature difference change inside the oscilloscope within a set time interval and outputs a temperature change signal. The signal processing module receives and compares the temperature change signal, and controls the alarm to prompt the operator that the preheating is complete when the temperature change value is less than the set value (the temperature inside the oscilloscope tends to be stable). The operator can be accurately prompted to the preheating status of the oscilloscope. At this time, the operator controls the oscilloscope on the control panel to perform a self-test operation, thereby preventing the temperature difference from causing adverse effects on the self-test results.
[0013] Preferably, the temperature change detection module includes:
[0014] A temperature sensor, fixedly mounted in the oscilloscope body, signal-connected to the signal input terminal of the control panel, for receiving the preheating start signal and detecting the temperature inside the oscilloscope body and outputting a sensed temperature signal;
[0015] A signal collector, connected to the signal output terminal of the temperature sensor, for receiving the sensed temperature signal and outputting it at a set time interval;
[0016] The single chip microcomputer is connected to the signal output terminal of the signal collector, and is used to receive the sensed temperature signal, compare the difference between any two adjacent sensed temperatures, and output the temperature change signal.
[0017] By adopting the above technical solution, the temperature sensor can detect the internal temperature of the oscilloscope in real time and output it, the signal collector can collect the internal temperature signal of the oscilloscope at the set time interval and output it to the microcontroller, and the microcontroller can automatically calculate the temperature change within the set time inside the oscilloscope and output it.
[0018] Preferably, the signal processing module includes a comparator chip, the signal input end of the comparator chip is connected to the signal output end of the single-chip microcomputer, the comparator chip receives and compares the temperature change signal, and outputs a prompt signal when the temperature difference in the oscilloscope body is less than a set value.
[0019] By adopting the above technical solution, the comparator chip compares the temperature change and can determine that the internal temperature of the oscilloscope tends to be constant when the temperature change is less than the set value.
[0020] Preferably, the alarm includes a buzzer, and a signal input terminal of the buzzer is signal-connected to a signal output terminal of the comparator chip.
[0021] By adopting the above technical solution, when the oscilloscope is preheated, the buzzer emits a prompt sound, which can promptly remind the operator that the oscilloscope is preheated and can perform subsequent self-test operations.
[0022] Preferably, a plurality of cable storage components are fixedly connected to the outer side wall of the oscilloscope body.
[0023] By adopting the above technical solution, the cable storage piece can facilitate operators to store probes, signal connection cables, etc. removed during self-inspection.
[0024] Preferably, the cable storage member comprises a card seat, the card seat is provided with a card slot, and a fixing member is slidably arranged in the card slot;
[0025] The card slot includes a first slot wall and a second slot wall, the second slot wall is mounted above the first slot wall, and a placement slot for placing a cable is formed between the fixing member and the first slot wall of the card slot;
[0026] A spring is fixedly connected between the top of the fixing member and the second groove wall.
[0027] By adopting the above technical solution, when the operator places the removed probe and signal connection cable in the placement groove, the spring applies elastic force to the fixing member to form a clamping and fixing effect on the cable.
[0028] Preferably, a limiting rod is fixedly connected to the second groove wall, and one end of the spring away from the fixing member is coaxially sleeved on the outer side of the limiting rod.
[0029] By adopting the above technical solution, the limiting rod can limit the spring, limit the deformation trajectory of the spring, and reduce the occurrence of irreversible deformation of the spring.
[0030] Preferably, a limiting groove is provided at the bottom of the slot, a limiting slider is fixedly connected to the side wall of the fixing member, and the limiting slider is embedded and slidably disposed in the limiting groove.
[0031] By adopting the above technical solution, the limiting slider slides in the limiting groove, which can limit the sliding trajectory of the fixing member and improve the sliding stability of the fixing member.
[0032] In summary, the present application provides an oscilloscope fault autonomous detection system, which has at least one of the following beneficial technical effects:
[0033] 1. Through the combination and use of temperature sensors, signal collectors, single-chip microcomputers, comparator chips and buzzers, the internal temperature of the oscilloscope can be detected in real time during the preheating process before the oscilloscope self-test, and the temperature change at the set time interval inside the oscilloscope can be automatically detected. When the temperature change at the set time interval is less than the set value, the preheating is determined to be completed, and the buzzer is automatically controlled to sound a prompt to prompt the operator to perform subsequent oscilloscope self-test operations. The technical effect of automatically detecting the preheating state of the oscilloscope and automatically prompting the completion of preheating can be achieved, effectively improving the convenience of the operator's self-test operation on the oscilloscope;
[0034] 2. Through the combination and use of the holder, the fixing part and the spring, the operator can fix and store the probe cable and the signal connection cable removed during the self-test, so as to facilitate the subsequent reinstallation. BRIEF DESCRIPTION OF THE DRAWINGS
[0035] Figure 1 It is a schematic diagram of an embodiment of the present application for illustrating the overall structure of an oscilloscope body.
[0036] Figure 2 It is a schematic diagram of an embodiment of the present application for demonstrating the internal signal transmission of an oscilloscope self-test system.
[0037] Figure 3 yes Figure 1 The enlarged schematic diagram at point A in the middle is mainly used to show the schematic diagram of the overall structure of the cable storage component.
[0038] Explanation of the reference numerals: 1. Oscilloscope body; 2. Control panel; 3. Buzzer; 4. Cable storage; 41. Card holder; 42. Card slot; 421. First slot wall; 422. Second slot wall; 423. Limit rod; 424. Limit groove; 43. Fixing member; 431. Limit slider; 44. Placement slot; 45. Spring. DETAILED DESCRIPTION
[0039] The following is combined with Figure 1-3 This application is described in further detail.
[0040] Example
[0041] The present application embodiment discloses an oscilloscope fault autonomous detection system. Figure 1 and Figure 2 , which mainly includes an oscilloscope body 1.
[0042] And: a control panel 2, which is arranged on the oscilloscope body 1, and the signal is used to input a preheating start signal; a temperature change detection module, which is fixedly installed in the oscilloscope body 1 and is connected to the signal output end of the control panel 2, and is used to receive the preheating start signal and detect the internal temperature difference of the oscilloscope body 1 and output a temperature change signal; a signal processing module, which is connected to the signal output end of the temperature change detection module, and is used to receive and compare the temperature change signal, and output a prompt signal when the temperature change value is less than the set value; an alarm, which is fixedly installed on the oscilloscope body 1, and the signal input end is connected to the signal output end of the signal processing module, and is used to receive the prompt signal and issue a warning message.
[0043] When the operator performs a fault self-check operation on the oscilloscope, the power supply of the oscilloscope can be connected first, the oscilloscope can be started, and a preheating start signal can be input through the button on the control panel 2. After receiving the preheating start signal, the temperature change detection module detects the temperature difference change inside the oscilloscope within a set time interval and outputs a temperature change signal. The signal processing module receives the temperature change signal and compares it, and when the temperature change value is less than the set value (the temperature inside the oscilloscope tends to be stable), the alarm is controlled to prompt the operator that the preheating is complete, which can accurately prompt the operator of the oscilloscope preheating status. At this time, the operator controls the oscilloscope to perform a self-check operation through the control panel 2, thereby preventing the temperature difference from causing adverse effects on the self-check result.
[0044] Reference Figure 2 The temperature change detection module includes: a temperature sensor, which is fixedly installed in the oscilloscope body 1 and is signal-connected to the signal input end of the control panel 2, for receiving a preheating start signal and detecting the temperature inside the oscilloscope body 1 and outputting a sensed temperature signal; a signal collector, which is signal-connected to the signal output end of the temperature sensor, for receiving the sensed temperature signal and outputting it at a set time interval; a single-chip microcomputer, which is signal-connected to the signal output end of the signal collector, for receiving the sensed temperature signal and comparing the difference between any two adjacent sensed temperatures and outputting a temperature change signal.
[0045] The temperature sensor can detect the internal temperature of the oscilloscope in real time and output it. The signal collector can collect the internal temperature signal of the oscilloscope at the set time interval and output it to the microcontroller. The microcontroller can automatically calculate the temperature change within the set time inside the oscilloscope and output it.
[0046] In the embodiment of the present application, the signal processing module adopts a comparator chip, the signal input end of the comparator chip is connected to the signal output end of the single-chip microcomputer, the comparator chip receives and compares the temperature change signal, and outputs a prompt signal when the temperature difference in the oscilloscope body 1 is less than the set value.
[0047] The comparator chip compares the temperature change and can determine that the internal temperature of the oscilloscope is tending to be constant when the temperature change is less than the set value.
[0048] Reference Figure 1 and Figure 2 The alarm device adopts a buzzer 3 fixedly mounted on the oscilloscope body 1, and the signal input end of the buzzer 3 is connected to the signal output end of the comparator chip.
[0049] When the oscilloscope is preheated, the buzzer 3 emits a prompt sound, which can promptly remind the operator that the oscilloscope is preheated and can perform subsequent self-test operations.
[0050] It should be noted that a plurality of cable storage members 4 are fixedly connected to the outer wall of the oscilloscope body 1. The cable storage members 4 can facilitate operators to store probes, signal connection cables, etc. removed during self-test.
[0051] Among them, the cable storage component 4 includes a base 41, a slot 42 is opened on the base 41, and a fixing component 43 is slidably arranged in the slot 42; the slot 42 includes a first slot wall 421 and a second slot wall 422, the second slot wall 422 is arranged above the first slot wall 421, and a placement groove 44 for placing cables is formed between the fixing component 43 and the first slot wall 421 of the slot 42; a spring 45 is fixedly connected between the top of the fixing component 43 and the second slot wall 422.
[0052] When the operator places the removed probe and signal connection cable in the placement groove 44 , the spring 45 applies elastic force to the fixing member 43 to clamp and fix the cable.
[0053] Reference Figure 3 A limiting rod 423 is fixedly connected to the second groove wall 422 , and one end of the spring 45 away from the fixing member 43 is coaxially sleeved on the outer side of the limiting rod 423 .
[0054] The limiting rod 423 can limit the spring 45 and the deformation trajectory of the spring 45, while reducing the occurrence of irreversible deformation of the spring 45.
[0055] Reference Figure 3 The bottom of the slot 42 is provided with a limiting groove 424, and a limiting slider 431 is fixedly connected to the side wall of the fixing member 43, and the limiting slider 431 is embedded and slidably arranged in the limiting groove 424. The limiting slider 431 slides in the limiting groove 424, which can limit the sliding track of the fixing member 43 and improve the sliding stability of the fixing member 43.
[0056] The implementation principle of an oscilloscope fault autonomous detection system in an embodiment of the present application is as follows: through the mutual coordination and use of a temperature sensor, a signal collector, a single-chip microcomputer, a comparator chip and a buzzer 3, the internal temperature of the oscilloscope can be detected in real time during the preheating process before the oscilloscope self-test, and the temperature change at a set time interval inside the oscilloscope can be automatically detected. When the temperature change at the set time interval is less than the set value, it is determined that the preheating is completed, and the buzzer 3 is automatically controlled to emit a prompt sound to prompt the operator to perform subsequent oscilloscope self-test operations. The technical effect of automatically detecting the preheating status of the oscilloscope and automatically prompting the completion of preheating can be achieved, effectively improving the convenience of the operator in performing self-test operations on the oscilloscope.
[0057] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. An oscilloscope fault autonomous detection system, characterized in that: It includes an oscilloscope body (1), and: A control panel (2), arranged on the oscilloscope body (1), the signal of which is used to input a preheating start signal; A temperature change detection module, fixedly mounted in the oscilloscope body (1), signal-connected to a signal output terminal of the control panel (2), and used for receiving the preheating start signal and detecting the temperature difference inside the oscilloscope body (1) and outputting a temperature change amount signal; A signal processing module, connected to the signal output terminal of the temperature change detection module, for receiving and comparing the temperature change signal, and outputting a prompt signal when the temperature change value is less than a set value; An alarm is fixedly mounted on the oscilloscope body (1), and its signal input end is connected to the signal output end of the signal processing module, and is used to receive the prompt signal and issue a warning message.
2. An oscilloscope fault autonomous detection system according to claim 1, characterized in that: The temperature change detection module comprises: A temperature sensor, fixedly mounted in the oscilloscope body (1), signal-connected to a signal input terminal of the control panel (2), and used for receiving the preheating start signal and detecting the temperature inside the oscilloscope body (1) and outputting a sensed temperature signal; A signal collector, connected to the signal output terminal of the temperature sensor, for receiving the sensed temperature signal and outputting it at a set time interval; The single chip microcomputer is connected to the signal output terminal of the signal collector, and is used to receive the sensed temperature signal, compare the difference between any two adjacent sensed temperatures, and output the temperature change signal.
3. An oscilloscope fault autonomous detection system according to claim 2, characterized in that: The signal processing module comprises a comparator chip, the signal input end of the comparator chip is signal-connected to the signal output end of the single-chip computer, the comparator chip receives and compares the temperature variation signal, and outputs a prompt signal when the temperature difference in the oscilloscope body (1) is less than a set value.
4. The oscilloscope fault autonomous detection system according to claim 3, characterized in that: The alarm comprises a buzzer (3), the signal input end of the buzzer (3) being signal-connected to the signal output end of the comparator chip.
5. An oscilloscope fault autonomous detection system according to claim 4, characterized in that: A plurality of cable storage components (4) are fixedly connected to the outer side wall of the oscilloscope body (1).
6. An oscilloscope fault autonomous detection system according to claim 5, characterized in that: The cable storage member (4) comprises a card seat (41), a card slot (42) is provided on the card seat (41), and a fixing member (43) is slidably arranged in the card slot (42); The card slot (42) comprises a first slot wall (421) and a second slot wall (422), the second slot wall (422) being arranged above the first slot wall (421), and a placement slot (44) for placing a cable is formed between the fixing member (43) and the first slot wall (421) of the card slot (42); A spring (45) is fixedly connected between the top of the fixing member (43) and the second groove wall (422).
7. An oscilloscope fault autonomous detection system according to claim 6, characterized in that: The second groove wall (422) is fixedly connected to a limiting rod (423), and one end of the spring (45) away from the fixing member (43) is coaxially sleeved on the outer side of the limiting rod (423).
8. An oscilloscope fault autonomous detection system according to claim 7, characterized in that: A limiting groove (424) is provided at the bottom of the slot (42), a limiting slider (431) is fixedly connected to the side wall of the fixing member (43), and the limiting slider (431) is embedded and slidably disposed in the limiting groove (424).