CN210720613U - Digital quantity sensor signal detection device - Google Patents
Digital quantity sensor signal detection device Download PDFInfo
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- CN210720613U CN210720613U CN201921670293.9U CN201921670293U CN210720613U CN 210720613 U CN210720613 U CN 210720613U CN 201921670293 U CN201921670293 U CN 201921670293U CN 210720613 U CN210720613 U CN 210720613U
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- signal detection
- detection circuit
- digital quantity
- quantity sensor
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Abstract
The utility model relates to a signal detection device, concretely relates to digital quantity sensor signal detection device, including power supply unit, PNP signal detection circuit and NPN signal detection circuit, power supply unit is PNP signal detection circuit, NPN signal detection circuit and the digital quantity sensor power supply that awaits measuring, and PNP signal detection circuit, NPN signal detection circuit all include input circuit module, output circuit module, and output circuit module is connected to the input circuit module; the utility model provides a technical scheme can effectively overcome the defect that prior art exists can not effectively detect digital quantity sensor signal fast.
Description
Technical Field
The utility model relates to a signal detection device, concretely relates to digital quantity sensor signal detection device.
Background
In an automatic control system of an industrial production line, a plurality of digital quantity sensors are often installed to detect various digital signals, such as various magnetic switches, photoelectric switches, proximity switches, and the like. In the process of debugging an automatic control system, checking the IO control signal is important preparation work before debugging, and whether the IO control signal is correct or not relates to the stable operation of the control system.
At present, the method adopted by electrical personnel when checking digital quantity input signals is to wait for the wiring of the whole control system to be finished, and the method can be carried out only after the field has the conditions of electrification and ventilation. In some project sites, the system may not have the condition of checking the IO signal (for example, the system is not powered on, the connection from the sensor to the control cabinet is not completed, etc.) due to factors of various aspects, which brings difficulty to the debugging work, increases the debugging time of the system, and further affects the whole project cycle.
Some digital sensors need to be connected with a PLC (programmable logic controller), so that whether the installation positions of the sensors are correct or not and whether the detection signals of the sensors are normal or not can be judged. For example, the magnetic switch must be installed at a position close to a magnetic ring of the cylinder, the magnetic switch can detect the magnetic ring and output a signal, the magnetic ring is usually installed on a piston inside the cylinder, and the accurate position of the magnetic ring is difficult to judge from the surface, so that the position of the magnetic switch cannot be determined once when the magnetic switch is installed, adjustment is performed when IO signals are checked at a later stage, and work time is delayed.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
To the above-mentioned shortcoming that prior art exists, the utility model provides a digital quantity sensor signal detection device can effectively overcome the defect that prior art exists can not effectively detect digital quantity sensor signal fast.
(II) technical scheme
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
the utility model provides a digital quantity sensor signal detection device, includes power supply unit, PNP signal detection circuit and NPN signal detection circuit, power supply unit does PNP signal detection circuit, NPN signal detection circuit and digital quantity sensor power supply that awaits measuring, PNP signal detection circuit, NPN signal detection circuit all include input circuit module, output circuit module, input circuit module connects output circuit module.
Preferably, the input circuit module in the PNP signal detection circuit includes a current limiting resistor R1 and a photocoupler U1, and the output circuit module in the PNP signal detection circuit includes a BUZZER1, an indicator light LED1 and a current limiting resistor R2.
Preferably, the current-limiting resistor R1 is connected to an input end of the photocoupler U1, one output end and the other input end of the photocoupler U1 are both grounded, and the other output end of the photocoupler U1 is connected to the BUZZER1 and the indicator light LED1 which are connected in parallel.
Preferably, an input circuit module in the NPN signal detection circuit includes a current limiting resistor R3 and a photocoupler U2, and an output circuit module in the NPN signal detection circuit includes a BUZZER2, an indicator light LED2 and a current limiting resistor R4.
Preferably, the current-limiting resistor R3 is connected to one input end of the photocoupler U2, the other input end of the photocoupler U2 is connected to the power supply unit, one output end of the photocoupler U2 is grounded, and the other output end of the photocoupler U2 is connected to the BUZZER2 and the indicator light LED2 which are connected in parallel.
Preferably, the power supply unit comprises a terminal plug P1, a lithium battery pack PW1 and a power adapter X1 for converting 220V on the terminal plug P1 into 24V to charge the lithium battery pack PW 1.
(III) advantageous effects
Compared with the prior art, the utility model provides a digital quantity sensor signal detection device, when photoelectric coupler's input side has digital quantity sensor's that awaits measuring signal, its output side switches on, make bee calling organ, the pilot lamp carries out reputation and reminds, and lithium cell group among the power supply unit can provide the power to the digital quantity sensor that awaits measuring, thereby can effectively detect digital quantity sensor's signal fast, constructor can detect the output signal of sensor through this device when installing digital quantity sensor, confirm whether the mounted position of sensor is correct, avoid later stage readjustment mounted position, and the work efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic diagram of a PNP signal detection circuit of the present invention;
fig. 2 is a schematic diagram of the NPN signal detection circuit of the present invention;
fig. 3 is a schematic diagram of the power supply unit of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
A digital quantity sensor signal detection device is shown in figures 1 to 3 and comprises a power supply unit, a PNP signal detection circuit and an NPN signal detection circuit, wherein the power supply unit supplies power to the PNP signal detection circuit, the NPN signal detection circuit and a digital quantity sensor to be detected, the PNP signal detection circuit and the NPN signal detection circuit respectively comprise an input circuit module and an output circuit module, and the input circuit module is connected with the output circuit module.
An input circuit module in the PNP signal detection circuit comprises a current-limiting resistor R1 and a photoelectric coupler U1, and an output circuit module in the PNP signal detection circuit comprises a BUZZER BUZZER1, an indicator light LED1 and a current-limiting resistor R2.
The current-limiting resistor R1 is connected with an input end of a photoelectric coupler U1, one output end and the other input end of the photoelectric coupler U1 are both grounded, and the other output end of the photoelectric coupler U1 is connected with a BUZZER1 and an indicator light LED1 which are connected in parallel.
An input circuit module in the NPN signal detection circuit comprises a current-limiting resistor R3 and a photoelectric coupler U2, and an output circuit module in the NPN signal detection circuit comprises a BUZZER BUZZER2, an indicator light LED2 and a current-limiting resistor R4.
The current-limiting resistor R3 is connected with one input end of a photoelectric coupler U2, the other input end of the photoelectric coupler U2 is connected with the power supply unit, one output end of the photoelectric coupler U2 is grounded, and the other output end of the photoelectric coupler U2 is connected with a BUZZER2 and an indicator light LED2 which are connected in parallel.
The power supply unit comprises a terminal plug P1, a lithium battery pack PW1 and a power adapter X1 which is used for converting 220V on the terminal plug P1 into 24V to charge the lithium battery pack PW 1.
Working principles of the PNP signal detection circuit and the NPN signal detection circuit are as follows: when photoelectric coupler's input side has digital quantity sensor's that awaits measuring signal, its output side switches on for buzzer, pilot lamp carry out reputation and remind, and lithium cell group PW1 among the power supply unit can provide the power to digital quantity sensor that awaits measuring, thereby can effectively detect digital quantity sensor's signal fast.
In the technical scheme of the application, the power adapter X1 is a mature electronic product in the market, can be directly selected, and is not used for manufacturing the power adapter X1 independently. 18650 high-performance batteries are selected as the lithium battery pack PW1, the battery voltage is 3.7V, the whole lithium battery pack PW1 is formed by connecting 6 batteries in series, the system voltage is 3.7 × 6 ═ 22.2V, and the system voltage can be regarded as DC 24V.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (6)
1. A digital quantity sensor signal detection device characterized by: the digital sensor to be detected is powered by the power supply unit, the PNP signal detection circuit, the NPN signal detection circuit and the digital sensor to be detected are respectively provided with an input circuit module and an output circuit module, and the input circuit module is connected with the output circuit module.
2. The digital quantity sensor signal detecting device according to claim 1, characterized in that: an input circuit module in the PNP signal detection circuit comprises a current-limiting resistor R1 and a photoelectric coupler U1, and an output circuit module in the PNP signal detection circuit comprises a BUZZER BUZZER1, an indicator light LED1 and a current-limiting resistor R2.
3. The digital quantity sensor signal detecting device according to claim 2, characterized in that: the current-limiting resistor R1 is connected with one input end of the photoelectric coupler U1, one output end and the other input end of the photoelectric coupler U1 are both grounded, and the other output end of the photoelectric coupler U1 is connected with the BUZZER1 and the indicator light LED1 which are connected in parallel.
4. The digital quantity sensor signal detecting device according to claim 1, characterized in that: an input circuit module in the NPN signal detection circuit comprises a current-limiting resistor R3 and a photoelectric coupler U2, and an output circuit module in the NPN signal detection circuit comprises a BUZZER BUZZER2, an indicator light LED2 and a current-limiting resistor R4.
5. The digital quantity sensor signal detecting device according to claim 4, characterized in that: the current-limiting resistor R3 is connected with one input end of the photoelectric coupler U2, the other input end of the photoelectric coupler U2 is connected with a power supply unit, one output end of the photoelectric coupler U2 is grounded, and the other output end of the photoelectric coupler U2 is connected with the BUZZER BUZZER2 and the indicator light LED2 which are connected in parallel.
6. The digital quantity sensor signal detecting device according to claim 1, characterized in that: the power supply unit comprises a terminal plug P1, a lithium battery pack PW1 and a power adapter X1 which is used for converting 220V on the terminal plug P1 into 24V to charge the lithium battery pack PW 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921670293.9U CN210720613U (en) | 2019-10-08 | 2019-10-08 | Digital quantity sensor signal detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921670293.9U CN210720613U (en) | 2019-10-08 | 2019-10-08 | Digital quantity sensor signal detection device |
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| CN210720613U true CN210720613U (en) | 2020-06-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110568296A (en) * | 2019-10-08 | 2019-12-13 | 安徽新境界自动化技术有限公司 | Digital quantity sensor signal detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110568296A (en) * | 2019-10-08 | 2019-12-13 | 安徽新境界自动化技术有限公司 | Digital quantity sensor signal detection device |
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