Analog signal detection device

Abstract

The utility model discloses an analog signal detection device, which relates to the technical field of analog signal detection and comprises a first shell and a second shell. The first shell and the second shell are fixedly mounted through bolts; a first display, a key and an adjusting knob are arranged on the inclined surface of the top of the first shell; the end, away from the second shell, of the first shell is further provided with a hole facilitating insertion of a power line and a signal transmission line, a switch and an indicator lamp. A second circuit board is fixedly mounted in the first shell; a control module and a power supply module are arranged on the second circuit board; a second plug is arranged at one end of the second circuit board; the display and output module is respectively connected with the first display and the second display, processed signal results are presented to a user in a visual mode through the first display and the second display, and during display, when analog signals are interrupted or distorted, the first display and the second display transmit faults to the indicator light, so that the indicator light can be used for indicating whether the analog signals are interrupted or distorted or not. And an indicating lamp is used for prompting workers.

Description

TECHNICAL FIELD

[0001] The utility model relates to analog signal detection technical field, specifically a kind of analog signal detection device. BACKGROUND

[0002] Analog signal widely exists in nature and various industrial scenes, and its accurate detection is crucial;As a signal continuously changing in time and amplitude, analog signal widely exists in nature and various industrial scenes, such as the electrical signal obtained by converting the physical quantities such as sound, temperature and pressure through sensor;In the early stage of electronic technology development, analog signal detection technology has been born, and it is used in simple communication and industrial measurement field in early stage;With the progress of science and technology, its application range is expanding, from basic electronic equipment to complex aerospace, medical and other high-end fields, analog signal detection plays an indispensable role, and provides basic support for obtaining key information and realizing system control;In the field of communication, analog signal detection is the key link to realize signal reception and demodulation, which guarantees the preprocessing work before signal conversion from analog to digital in traditional analog communication and modern digital communication, such as the reception and preliminary processing of mobile phone signal;In industrial automation, analog signals collected by various sensors, such as temperature, pressure and flow, are converted into analyzable data by detection device, which is used for monitoring and automatic control of production process to ensure the stability and safety of production process;In medical equipment field, analog signal detection device is used to detect human physiological signals, such as electrocardiograph and electroencephalograph, to detect human bioelectric signals and provide key basis for disease diagnosis;On the one hand, noise interference is a common problem. Analog signal is easily affected by surrounding electromagnetic interference and internal circuit noise of detection device, which reduces signal quality and increases detection error;For example, in complex electromagnetic environment, detection device is difficult to accurately distinguish useful signal from noise. On the other hand, signal distortion problem cannot be ignored. In the process of signal transmission and processing, due to the non-linear characteristics of electronic components in detection device, circuit bandwidth limitation and other factors, signal distortion occurs, which causes deviation between detected signal and original signal, and affects the analysis of real characteristics of signal;In addition, traditional detection device has bottleneck in precision and sensitivity, which is difficult to meet the demand of weak signal detection and high-precision measurement, such as detection of extremely weak bioelectric signal in biomedical research;With the increasing demand of industries for analog signal detection accuracy, speed and reliability, it is urgent to develop analog signal detection device with better performance;

[0003] The existing analog signal detection device mainly has the shortcomings of anti-interference ability, precision, real-time performance and the like;Among them, some traditional analog signal detection devices are composed of multiple discrete components, and the circuit structure is complex, the volume is large, and the integration degree is not high. This not only increases the cost and power consumption of the device, but also may reduce the reliability of the system, and is also not conducive to use in some occasions with high space requirements.

[0004] A search revealed Chinese patent application CN202021199139.0, which discloses an analog signal detection device. The device includes a detection host, a protective cover, a flip-up connector, a graphic display, and a data acquisition line. The detection host is a flat rectangular parallelepiped. The graphic display is located on the upper surface of the detection host. The flip-up connector is rotatably hinged to the side wall of the detection host, and two sets of flip-up connectors are provided. The protective cover is rotatably hinged to the end of the flip-up connector, and the size of the protective cover is the same as the upper surface of the detection host. The data acquisition line is pluggable and detachable from the side wall of the detection host.

[0005] Although the detection device in the aforementioned patent can detect analog signals, during the detection process, the device can only display the form of the detected signal through a graphic display. This means that when the operator is away from the detection device, it is impossible to detect any abnormalities on the graphic display in time, which may result in incomplete or distorted detected signals and fail to effectively guarantee the quality of the detection. Utility Model Content

[0006] The purpose of this invention is to provide an analog signal detection device. In this structure, the analog signal to be detected is transmitted to a sensor module via a signal transmission line. The sensor module then transmits the signal to a signal conditioning module, an analog-to-digital converter (ADC) module, a digital signal processing (DSP) module, and a display and output module. The display and output module is connected to a first display and a second display. The first and second displays enable real-time display of the detected signal. Furthermore, during the detection process, if intermittent or distorted signals occur, the first and second displays will display the detected signal via indicator lights to alert the operator. This addresses the problems mentioned in the background section.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An analog signal detection device includes a first housing and a second housing; the first housing and the second housing are fixedly installed by bolts; wherein, a first display, buttons and adjustment knobs are provided on the top inclined surface of the first housing; and the end of the first housing away from the second housing is also provided with a hole, a switch and an indicator light for easy insertion of power cord and signal transmission line;

[0009] A second circuit board is fixedly installed inside the first housing; a control module and a power module are provided on the second circuit board; a second plug is provided at one end of the second circuit board;

[0010] As a further technical scheme of the utility model, the second shell top is provided with a second display, the second shell and the first shell are through arrangement, the first circuit board is fixedly installed in the second shell, sensor modules, signal conditioning modules, analog-digital conversion modules, digital signal processing modules and display and output modules are arranged on the first circuit board.

[0011] As a further technical scheme of the utility model, the sensor modules, signal conditioning modules, analog-digital conversion modules, digital signal processing modules and display and output modules are matched through standard quick plug interfaces.

[0012] As a further technical scheme of the utility model, the first circuit board is further provided with a first plug, and the first plug is electrically connected with a second plug on the second circuit board through a transmission line.

[0013] As a further technical scheme of the utility model, the display and output modules are electrically connected with a first display and a second display on the first shell and the second shell, the first display and the second display are further electrically connected with indicator lamps, and the signal transmission line is connected with the sensor modules.

[0014] As a further technical scheme of the utility model, the control module is connected with the buttons arranged on the first shell.

[0015] The second shell is fixedly provided with two groups of symmetrical mounting grooves on one side close to the first shell, a limiting block is movably installed between the two groups of mounting grooves, the limiting block is a half-spherical structure, a guide groove is formed in the inner center of the limiting block, a guide rod is installed in the guide groove, and the bottom of the limiting block is fixed with the inner wall of the second shell at the outer side of the guide rod, and a spring is installed on the bottom of the limiting block at the outer side of the guide rod.

[0016] The first shell is provided with a limiting hole corresponding to the position of the limiting block, and the limiting block realizes the limiting process through the limiting hole.

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] In use, the analog signal to be detected is transmitted to the sensor modules in the first circuit board through the signal transmission line, various non-electric physical quantities are converted into electric signals, and the utility model is the source of analog signal detection. Different types of sensors can convert different physical quantities to meet diversified detection requirements, and the sensor modules are transmitted to the signal conditioning modules, analog-digital conversion modules, digital signal processing modules and display and output modules to realize different processing of signals.

[0019] The utility model discloses, display and output module are with first display and second display respectively, and the signal result after processing is presented to the user with the intuitive mode through first display and second display, or the result is output to other equipment and carries out further processing and application, when displaying, when the analog signal appears the situation of interruption or distortion, first display and second display will fault transmission to pilot lamp, and the effect of prompting is played to the staff through pilot lamp. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the three-dimensional structure schematic diagram of the utility model.

[0021] Figure 2 It is another visual angle structure schematic diagram of the utility model in Figure 1 .

[0022] Figure 3 It is the side view of the utility model in Figure 1 .

[0023] Figure 4 It is the split schematic diagram of the utility model in Figure 1 .

[0024] Figure 5 It is the inside structure schematic diagram of first casing in the utility model in Figure 4 .

[0025] Figure 6 It is the structure schematic diagram of second casing in the utility model in Figure 4 .

[0026] Figure 7 It is the structure schematic diagram of mounting groove in the utility model in Figure 6 .

[0027] Figure 8 It is the inside structure schematic diagram of limit block in the utility model in Figure 6 .

[0028] In the drawing: 1-first casing, 2-second casing, 3-first display, 4-second display, 5-key, 6-power cord, 7-signal transmission line, 8-radiating fan, 9-sensor module, 10-signal conditioning module, 11-analog-digital conversion module, 12-digital signal processing module, 13-display and output module, 14-first plug, 15-control module, 16-power module, 17-second plug, 18-first circuit board, 19-second circuit board, 20-adjusting knob, 21-mounting groove, 22-limit block, 23-guiding slot, 24-guiding rod, 25-spring, 26-limit hole. DETAILED DESCRIPTION

[0029] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiment is only a part of the embodiment of the utility model, and is not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of protection of the utility model.

[0030] Please refer to Figures 1-8 In the embodiments of the utility model, a kind of analog signal detection device, including first shell 1 and second shell 2;The first shell 1 and second shell 2 are fixedly installed by bolt;Wherein, the first shell 1 top inclined plane is provided with first display 3, key 5 and adjusting knob 20;The one end of the first shell 1 away from second shell 2 is also provided with hole, switch and pilot lamp for facilitating power cord 6 and signal transmission line 7 plug-in;

[0031] The first shell 1 is fixedly installed with second circuit board 19 in interior;The second circuit board 19 is provided with control module 15 and power module 16;The second circuit board 19 is provided with second plug 17 in one end;When power module 16 is powered for detection equipment, the heat generated is cooled by the cooling fan 8 provided on the first shell 1, to ensure that the temperature inside the first shell 1 and second shell 2 is stable;

[0032] The second shell 2 is provided with second display 4 on top;The second shell 2 is provided with first shell 1;The first circuit board 18 is fixedly installed in the second shell 2 interior;The first circuit board 18 is provided with sensor module 9, signal conditioning module 10, analog-digital conversion module 11, digital signal processing module 12 and display and output module 13;

[0033] The sensor module 9, signal conditioning module 10, analog-digital conversion module 11, digital signal processing module 12 and display and output module 13 are matched by standard quick connector.

[0034] By adopting the above technical scheme, in use, the analog signal to be detected is transmitted to sensor module 9 in first circuit board 18 through signal transmission line 7, and various non-electric physical quantities are converted into electric signals, which is the source of analog signal detection;Different types of sensors can convert different physical quantities, thereby meeting the diversified detection needs, and then transmitted to signal conditioning module 10, analog-digital conversion module 11, digital signal processing module 12 and display and output module 13 through sensor module 9, to realize different processing of signals respectively;Through the connection of signal conditioning module 10 and control module 15 with key 5 and adjusting knob 20, the debugging effect in detection process is realized, to ensure the stability of analog signal in detection process.

[0035] The first circuit board 18 is further provided with a first plug 14, and the first plug 14 is electrically connected with a second plug 17 on a second circuit board 19 through a transmission line;

[0036] The display and output module 13 is electrically connected with a first display 3 and a second display 4 on the first shell 1 and the second shell 2, and the first display 3 and the second display 4 are further electrically connected with an indicator lamp; and the signal transmission line 7 is connected with the sensor module 9.

[0037] The control module 15 is connected with the button 5 arranged on the first shell 1.

[0038] According to the technical scheme, the display and output module 13 is connected with the first display 3 and the second display 4, and the first display 3 and the second display 4 can present the processed signal result to the user in an intuitive way or output the result to other devices for further processing and application.

[0039] The second shell 2 is fixed with two symmetrical groups of mounting grooves 21 on one side close to the first shell 1, and a limiting block 22 is movably arranged between the two groups of mounting grooves 21; the limiting block 22 is a half-spherical structure, and a guide groove 23 is arranged in the inner center of the limiting block 22; a guide rod 24 is arranged in the guide groove 23, and the end of the guide rod 24 penetrates through the bottom of the limiting block 22 and is fixed to the inner wall of the second shell 2; and a spring 25 is arranged on the outside of the guide rod 24 at the bottom of the limiting block 22.

[0040] The first shell 1 is provided with a limiting hole 26 corresponding to the position of the limiting block 22, and the limiting block 22 is limited through the limiting hole 26.

[0041] The working principle of the utility model is as follows: in use, first, the first shell 1 and the second shell 2 are connected and installed, the mounting groove 21 of the first shell 1 is slidably installed on the second shell 2, and after installation, the limiting block 22 is clamped into the position of the limiting hole 26 for fixation; similarly, when disassembling, the limiting block 22 is pressed and moved downward, and then the first shell 1 is manually slid upward to separate the first shell 1 from the second shell 2.

[0042] After installation, the analog signal to be detected is transmitted to the sensor module 9 in the first circuit board 18 through the signal transmission line 7, and various non-electric physical quantities are converted into electric signals, which are the source of analog signal detection. Different types of sensors can be used to convert different physical quantities to meet diversified detection needs, and then transmitted to the signal conditioning module 10, the analog-digital conversion module 11, the digital signal processing module 12 and the display and output module 13 through the sensor module 9, to realize different processing of the signals respectively;

[0043] The display and output module 13 is respectively connected with the first display 3 and the second display 4, and the processed signal results are presented to the user in an intuitive way through the first display 3 and the second display 4, or output to other devices for further processing and application. When the analog signal is interrupted or distorted, the first display 3 and the second display 4 will transmit the fault to the indicator light, which will prompt the staff through the indicator light.

[0044] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims should be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0045] In addition, it should be understood that although the present application is described in the specification in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. An analog signal detection apparatus, characterized by: It includes first shell (1) and second shell (2), first shell (1) and second shell (2) are fixed by bolt installation, wherein, first shell (1) top inclined plane is provided with first display (3), button (5) and adjusting knob (20), first shell (1) is away from second shell (2) one end is also provided with the hole of the convenience of power cord (6) and signal transmission line (7) plug, switch and pilot lamp, First shell (1) inside fixed installation has second circuit board (19), second circuit board (19) is provided with control module (15) and power module (16), one end of second circuit board (19) is provided with second plug (17).

2. The analog signal detection apparatus of claim 1, wherein: Second shell (2) top is provided with second display (4), second shell (2) is through with first shell (1) setting, first shell (1) inside fixed installation has first circuit board (18), first circuit board (18) is provided with sensor module (9), signal conditioning module (10), analog-digital conversion module (11), digital signal processing module (12) and display and output module (13).

3. The analog signal detection apparatus of claim 2, wherein: Sensor module (9), signal conditioning module (10), analog-digital conversion module (11), digital signal processing module (12) and display and output module (13) are matched through standard quick connector.

4. The analog signal detection apparatus of claim 2, wherein: First circuit board (18) is also provided with first plug (14), first plug (14) is electrically connected with second plug (17) on second circuit board (19) through transmission line.

5. The analog signal detection apparatus of claim 2, wherein: Display and output module (13) are electrically connected with first display (3) and second display (4) on first shell (1) and second shell (2), first display (3) and second display (4) are also electrically connected with pilot lamp, signal transmission line (7) is connected with sensor module (9).

6. The analog signal detection apparatus of claim 1, wherein: Control module (15) is connected with button (5) on first shell (1).

7. The analog signal detection apparatus of claim 1, wherein: Second shell (2) is fixed with two groups of symmetrical installation slot (21) on the side close to first shell (1), two groups of installation slot (21) are movably installed with a limit block (22), the limit block (22) is a half spherical structure, and a guide groove (23) is formed in the inner center of the limit block (22), a guide rod (24) is installed in the guide groove (23), and the end of the guide rod (24) penetrates the bottom of the limit block (22) and is fixed with the inner wall of the second shell (2), the spring (25) is installed on the outside of the guide rod (24) at the bottom of the limit block (22).

8. The analog signal detection apparatus of claim 1, wherein: First shell (1) is provided with a limit hole (26) corresponding to the position of limit block (22), and limit block (22) realizes the limiting process through limit hole (26).

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