CN217112599U - Intelligent simulation testing device - Google Patents
Intelligent simulation testing device Download PDFInfo
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- CN217112599U CN217112599U CN202122805510.4U CN202122805510U CN217112599U CN 217112599 U CN217112599 U CN 217112599U CN 202122805510 U CN202122805510 U CN 202122805510U CN 217112599 U CN217112599 U CN 217112599U
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Abstract
The utility model relates to the technical field of simulation test, in particular to an intelligent simulation test device, a voltage detection circuit is connected with an external analog signal tested end, a frequency detection circuit is connected with the voltage detection circuit, the frequency detection circuit and the voltage detection circuit are also connected with a detection identification circuit, and a display circuit is connected with the detection identification circuit; when in use, the voltage detection circuit amplifies and limits the voltage of an electric signal at the detected end of an external analog signal, and then outputs the electric signal to the detection identification circuit to identify a voltage value and displays the voltage value through the display circuit; the frequency detection circuit receives the electric signal amplified by the voltage detection circuit, re-amplifies the electric signal, outputs the electric signal to the detection identification circuit to identify a frequency value and displays the frequency value through the display circuit; when the detection identification circuit detects that the voltage value or the frequency value changes suddenly, the display circuit is automatically and intelligently controlled to switch and display the corresponding voltage value or frequency value, so that the intelligent detection analog quantity is realized, and the circuit is simple and low in cost.
Description
Technical Field
The utility model relates to a simulation volume test technical field, more specifically say, relate to an intelligent simulation testing arrangement.
Background
The publication number is: chinese utility model patent of CN 201921240367.5: a radio frequency chip test system discloses the structure and principle of the radio frequency test part of the chip test device;
and the publication numbers are: chinese utility model patent CN202023223491.6 ]: a chip test system capable of providing accurate reference voltage discloses a principle and a circuit for testing chip voltage;
in summary, most of the conventional analog quantity testing devices have a single function, and can only perform single frequency detection or voltage detection, but cannot perform detection of multiple analog quantities.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, provide a circuit simple, with low costs, small, convenient to use, extensive applicability extensive intelligent simulation testing arrangement.
The utility model provides a technical scheme that its technical problem adopted is:
an intelligent simulation test device is constructed, and comprises a frequency detection circuit, a voltage detection circuit, a detection identification circuit and a display circuit; the voltage detection circuit is connected with an external analog signal detected end, the frequency detection circuit is connected with the voltage detection circuit, the frequency detection circuit and the voltage detection circuit are both connected with the detection identification circuit, and the display circuit is connected with the detection identification circuit;
the power supply circuit is respectively connected with the frequency detection circuit, the voltage detection circuit, the detection identification circuit and the display circuit;
the voltage detection circuit is used for amplifying and limiting the voltage of an electric signal at the detected end of the external analog signal, outputting the electric signal to the detection identification circuit to identify a voltage value and displaying the voltage value through the display circuit;
the frequency detection circuit is used for receiving the electric signal amplified by the voltage detection circuit, amplifying the electric signal again, outputting the amplified electric signal to the detection identification circuit to identify a frequency value, and displaying the frequency value through the display circuit;
the power supply circuit is used for outputting 5V direct current through the 5V output end and outputting 2.5V direct current through the 2.5V output end after voltage reduction, rectification and voltage stabilization are carried out on external 220V alternating current commercial power.
The utility model discloses an intelligent simulation testing arrangement, wherein, voltage detection circuit includes first operational amplifier and first diode and second diode, the syntropy input end of first operational amplifier is connected with first resistance and second resistance, the other end of first resistance with the 5V output end is connected, the other end of second resistance is that the sense terminal of intelligent simulation testing arrangement is connected with the analog signal measured end of outside;
the reverse input end of the first operational amplifier is connected with a third resistor and a fourth resistor, the other end of the third resistor is grounded, and the other end of the fourth resistor is connected with the output end of the first operational amplifier;
the output end of the first operational amplifier is connected with a fifth resistor, and the other end of the fifth resistor is connected with a sixth resistor, a seventh resistor, the first diode and the second diode; the other end of the sixth resistor is connected with the 2.5V output end, and the anode of the first diode and the cathode of the second diode are connected with the other end of the fifth resistor; the cathode of the first diode is connected with the 5V output end, the anode of the second diode is grounded, and the other end of the seventh resistor is connected with the detection identification circuit for the output end of the voltage detection circuit.
The utility model discloses an intelligent simulation test device, wherein, the frequency detection circuit includes second operational amplifier and first electric capacity, the reverse input end of second operational amplifier is connected with eighth resistance and first electric capacity, the other end of eighth resistance with the output of first operational amplifier is connected, the other end of first electric capacity with the syntropy input end of second operational amplifier is connected, the syntropy input end of second operational amplifier still is connected with ninth resistance and tenth resistance, the other end of ninth resistance with the 2.5V output is connected;
the other end of the tenth resistor is connected with the output end of the second operational amplifier, the output end of the second operational amplifier is further connected with an eleventh resistor and a twelfth resistor, the other end of the eleventh resistor is connected with the 5V output end, the other end of the twelfth resistor is connected with a second capacitor, the other end of the second capacitor is grounded, and the other end of the twelfth resistor is the output end of the frequency detection circuit and is connected with the detection identification circuit.
The utility model discloses an intelligent simulation test device, wherein, the detection identification circuit is microcontroller, the P1.3 end of microcontroller is connected with the output of voltage detection circuit and the P1.2 end is connected with the output of frequency detection circuit; the VCC end of the microcontroller is connected with the 5V output end, the GND end of the microcontroller is grounded, and the model STC12C2052AD of the microcontroller is obtained.
The utility model discloses an intelligent simulation testing arrangement, wherein, the display circuit is seven-segment digital tube of quadbit, the A end, B end, C end, D end, E end, F end, G end, DP end, 1 end, 2 ends and 3 ends and 4 ends of seven-segment digital tube of quadbit with P1.7 end, P1.6 end, P1.5 end, P1.4 end, P1.1 end, P1.0 end, P3.7 end, P3.1 end, P3.2 end, P3.3 end and P3.4 end and P3.5 end one to one connection of microcontroller;
the P3.0 end of the microcontroller is connected with a jog switch, the jog switch is used for controlling the four-digit seven-segment digital tube to switch and display a voltage value or a current value, the other end of the jog switch is connected with a thirteenth resistor, and the other end of the thirteenth resistor is connected with a 5V output end.
The utility model discloses an intelligent simulation testing arrangement, wherein, power supply circuit includes transformer, rectifier bridge and first three-terminal regulator tube and second three-terminal regulator tube, the first end and the second end of the primary coil of transformer are connected with the live wire and the zero line of outside 220V alternating current commercial power one-to-one respectively, the first end and the second end of the secondary coil of transformer are connected with the first output and the second output one-to-one of rectifier bridge respectively, the anodal output of rectifier bridge respectively with the VI end of first three-terminal regulator tube and the VI end of second three-terminal regulator tube are connected, the negative pole of rectifier bridge respectively with the GND end of first three-terminal regulator tube and the GND end of second three-terminal regulator tube are connected and ground connection;
the VI end of the first three-terminal voltage regulator tube is connected with a third capacitor, the VO end of the first three-terminal voltage regulator tube is connected with a fourth capacitor, the VI end of the second three-terminal voltage regulator tube is connected with a fifth capacitor, the VO end of the second three-terminal voltage regulator tube is connected with a sixth capacitor, and the other ends of the third capacitor, the fourth capacitor, the fifth capacitor and the sixth capacitor are all grounded;
the VO end of the first three-end voltage-regulator tube is a 5V output end of the power circuit and used for outputting 5V direct current, and the VO end of the second three-end voltage-regulator tube is a 2.5V output end of the power circuit and used for outputting 2.5V direct current.
The beneficial effects of the utility model reside in that: when in use, the voltage detection circuit amplifies and limits the voltage of an electric signal at the detected end of an external analog signal, and then outputs the electric signal to the detection identification circuit to identify a voltage value and displays the voltage value through the display circuit; the frequency detection circuit receives the electric signal amplified by the voltage detection circuit, re-amplifies the electric signal, outputs the electric signal to the detection identification circuit to identify a frequency value and displays the frequency value through the display circuit; when the detection identification circuit detects that the voltage value or the frequency value changes suddenly, the display circuit is automatically and intelligently controlled to switch and display the corresponding voltage value or frequency value, so that the intelligent detection analog quantity is realized, and the circuit is simple, low in cost and small in size.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below with reference to the accompanying drawings and embodiments, wherein the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work according to the drawings:
fig. 1 is a schematic circuit diagram of a voltage detection circuit and a frequency detection circuit of the intelligent analog testing device according to the preferred embodiment of the present invention;
fig. 2 is a schematic circuit diagram of the detection identification circuit and the display circuit of the intelligent simulation testing device according to the preferred embodiment of the present invention;
fig. 3 is a schematic circuit diagram of a power circuit of the intelligent simulation test device according to the preferred embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, a clear and complete description will be given below with reference to the technical solutions of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
The intelligent simulation testing device of the preferred embodiment of the present invention is shown in fig. 1, and also refers to fig. 2 to 3; comprises a frequency detection circuit 102, a voltage detection circuit 101, a detection identification circuit 201 and a display circuit 202; the voltage detection circuit 101 is connected with an external analog signal detected end, the frequency detection circuit 102 is connected with the voltage detection circuit 101, the frequency detection circuit 102 and the voltage detection circuit 101 are also connected with the detection identification circuit 201, and the display circuit 202 is connected with the detection identification circuit 201;
the power supply circuit 301 is respectively connected with the frequency detection circuit 102, the voltage detection circuit 101, the detection identification circuit 201 and the display circuit 202;
the voltage detection circuit 101 is used for amplifying and limiting an electric signal at a detected end of an external analog signal, outputting the amplified and limited electric signal to the detection identification circuit 201 to identify a voltage value, and displaying the voltage value through the display circuit 202;
the frequency detection circuit 102 is configured to receive the electrical signal amplified by the voltage detection circuit 101, amplify the electrical signal again, output the amplified electrical signal to the detection and identification circuit 201, identify a frequency value, and display the frequency value through the display circuit 202;
the power circuit 301 is used for reducing, rectifying and stabilizing voltage of external 220V alternating current mains supply, and outputting 5V direct current through a 5V output end and 2.5V direct current through a 2.5V output end;
when in use, the voltage detection circuit 101 amplifies and limits the voltage of an electric signal at the detected end of an external analog signal, and outputs the amplified and limited electric signal to the detection identification circuit 201 to identify a voltage value and display the voltage value through the display circuit 202; the frequency detection circuit 102 receives the electric signal amplified by the voltage detection circuit 101, re-amplifies the electric signal, outputs the amplified electric signal to the detection identification circuit 201, identifies a frequency value, and displays the frequency value through the display circuit 202; when the detection and identification circuit 201 detects that the voltage value or the frequency value changes suddenly, the automatic intelligent control display circuit 202 switches and displays the corresponding voltage value or frequency value, so that the intelligent detection of the analog quantity is realized, and the circuit is simple, low in cost and small in size.
As shown in fig. 1 and 2, the voltage detection circuit 101 includes a first operational amplifier U2, a first diode D1 and a second diode D2, a first resistor R2 and a second resistor R3 are connected to a same-direction input end of the first operational amplifier U2, the other end of the first resistor R2 is connected to the 5V output end, and the other end of the second resistor R3 is a detection end of the intelligent analog test device and is connected to an external analog signal detected end;
the inverting input end of the first operational amplifier U2 is connected with a third resistor R4 and a fourth resistor R5, the other end of the third resistor R4 is grounded, and the other end of the fourth resistor R5 is connected with the output end of the first operational amplifier U2;
the output end of the first operational amplifier U2 is connected with a fifth resistor R12, and the other end of the fifth resistor R12 is connected with a sixth resistor R13, a seventh resistor R14, a first diode D1 and a second diode D2; the other end of the sixth resistor R13 is connected with the 2.5V output end, and the anode of the first diode D1 and the cathode of the second diode D2 are connected with the other end of the fifth resistor R12; the cathode of the first diode D1 is connected with the 5V output end, the anode of the second diode D2 is grounded, and the other end of the seventh resistor R14 is connected with the detection identification circuit 201 for the output end of the voltage detection circuit 101; the first diode D1 and the second diode D2 are used for limiting voltage, so that the voltage input to the microcontroller U1 is not more than the rated working voltage of 5V, and the circuit is simple, low in cost and small in size.
As shown in fig. 1 and fig. 2, the frequency detection circuit 102 includes a second operational amplifier U3 and a first capacitor C4, an inverting input terminal of the second operational amplifier U3 is connected with an eighth resistor R6 and a first capacitor C4, the other end of the eighth resistor R6 is connected with an output terminal of the first operational amplifier U2, the other end of the first capacitor C4 is connected with a non-inverting input terminal of the second operational amplifier U3, a non-inverting input terminal of the second operational amplifier U3 is further connected with a ninth resistor R7 and a tenth resistor R8, and the other end of the ninth resistor R7 is connected with a 2.5V output terminal;
the other end of the tenth resistor R8 is connected with the output end of the second operational amplifier U3, the output end of the second operational amplifier U3 is further connected with an eleventh resistor R11 and a twelfth resistor R9, the other end of the eleventh resistor R11 is connected with the 5V output end, the other end of the twelfth resistor R9 is connected with a second capacitor C5, the other end of the second capacitor C5 is grounded, and the other end of the twelfth resistor R9 is connected with the detection identification circuit 201 as the output end of the frequency detection circuit 102; the circuit is simple, the cost is low, and the volume is small.
As shown in fig. 1 and fig. 2, the detection and identification circuit 201 is a microcontroller U1, a P1.3 terminal of the microcontroller U1 is connected to the output terminal of the voltage detection circuit 101, and a P1.2 terminal is connected to the output terminal of the frequency detection circuit 102; the VCC end of the microcontroller U1 is connected with the 5V output end, the GND end is grounded, and the model STC12C2052AD of the microcontroller U1 is; the circuit is simple, the cost is low, and the volume is small.
As shown in fig. 1 and 2, the display circuit 202 is a four-bit seven-segment digital tube LCD1, wherein the terminals a, B, C, D, E, F, G, DP, 1, 2, 3 and 4 of the four-bit seven-segment digital tube LCD1 are connected with the terminals P1.7, P1.6, P1.5, P1.4, P1.1, P1.0, P3.7, P3.1, P3.2, P3.3, P3.4 and P3.5 of the microcontroller U1 in a one-to-one manner;
the P3.0 end of the microcontroller U1 is connected with a jog switch K1, the jog switch K1 is used for controlling a four-digit seven-segment digital tube LCD1 to switch and display a voltage value or a current value, the other end of the jog switch K1 is connected with a thirteenth resistor R15, and the other end of the thirteenth resistor R15 is connected with a 5V output end; a jog switch K1 is arranged to meet different use requirements; the circuit is simple, the cost is low, and the volume is small.
As shown in fig. 1 to 3, the power supply circuit 301 includes a transformer T1, a rectifier bridge BR1, a first three-terminal regulator tube U4 and a second three-terminal regulator tube U5, a first end and a second end of a primary coil of the transformer T1 are respectively connected with a live wire and a zero wire of an external 220V alternating current mains supply in a one-to-one manner, a first end and a second end of a secondary coil of the transformer T1 are respectively connected with a first output end and a second output end of the rectifier bridge BR1 in a one-to-one manner, a positive output end of the rectifier bridge BR1 is respectively connected with a VI end of the first three-terminal regulator tube U4 and a VI end of the second three-terminal regulator tube U5, and a negative electrode of the rectifier bridge BR1 is respectively connected with a GND end of the first three-terminal regulator tube U4 and a GND end of the second three-terminal regulator tube U5 and grounded;
the VI end of the first three-terminal voltage regulator tube U4 is connected with a third capacitor C9, the VO end of the first three-terminal voltage regulator tube U3878 is connected with a fourth capacitor C11, the VI end of the second three-terminal voltage regulator tube U5 is connected with a fifth capacitor C8, the VO end of the second three-terminal voltage regulator tube U5 is connected with a sixth capacitor C10, and the other ends of the third capacitor C9, the fourth capacitor C11, the fifth capacitor C8 and the sixth capacitor C10 are all grounded;
the VO end of the first three-terminal regulator tube U4 is the 5V output end of the power circuit 301 for outputting 5V direct current, and the VO end of the second three-terminal regulator tube U5 is the 2.5V output end of the power circuit 301 for outputting 2.5V direct current; the circuit is simple, the cost is low, and the volume is small.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are considered to be within the scope of the invention as defined by the following claims.
Claims (6)
1. An intelligent simulation test device comprises a frequency detection circuit, a voltage detection circuit, a detection identification circuit and a display circuit; the device is characterized in that the voltage detection circuit is connected with an external analog signal detected end, the frequency detection circuit is connected with the voltage detection circuit, the frequency detection circuit and the voltage detection circuit are also connected with the detection identification circuit, and the display circuit is connected with the detection identification circuit;
the power supply circuit is respectively connected with the frequency detection circuit, the voltage detection circuit, the detection identification circuit and the display circuit;
the voltage detection circuit is used for amplifying and limiting the voltage of an electric signal at the detected end of the external analog signal, outputting the electric signal to the detection identification circuit to identify a voltage value and displaying the voltage value through the display circuit;
the frequency detection circuit is used for receiving the electric signal amplified by the voltage detection circuit, amplifying the electric signal again, outputting the amplified electric signal to the detection identification circuit to identify a frequency value, and displaying the frequency value through the display circuit;
the power supply circuit is used for outputting 5V direct current through the 5V output end and outputting 2.5V direct current through the 2.5V output end after voltage reduction, rectification and voltage stabilization are carried out on external 220V alternating current commercial power.
2. The intelligent analog testing device according to claim 1, wherein the voltage detection circuit comprises a first operational amplifier and a first diode and a second diode, a first resistor and a second resistor are connected to a same-direction input end of the first operational amplifier, the other end of the first resistor is connected to the 5V output end, and the other end of the second resistor is used for connecting a detection end of the intelligent analog testing device with an external analog signal detected end;
the reverse input end of the first operational amplifier is connected with a third resistor and a fourth resistor, the other end of the third resistor is grounded, and the other end of the fourth resistor is connected with the output end of the first operational amplifier;
the output end of the first operational amplifier is connected with a fifth resistor, and the other end of the fifth resistor is connected with a sixth resistor, a seventh resistor, the first diode and the second diode; the other end of the sixth resistor is connected with the 2.5V output end, and the anode of the first diode and the cathode of the second diode are connected with the other end of the fifth resistor; the cathode of the first diode is connected with the 5V output end, the anode of the second diode is grounded, and the other end of the seventh resistor is connected with the detection identification circuit for the output end of the voltage detection circuit.
3. The intelligent analog testing device according to claim 2, wherein the frequency detection circuit comprises a second operational amplifier and a first capacitor, an inverting input terminal of the second operational amplifier is connected with an eighth resistor and the first capacitor, the other end of the eighth resistor is connected with an output terminal of the first operational amplifier, the other end of the first capacitor is connected with a non-inverting input terminal of the second operational amplifier, a non-inverting input terminal of the second operational amplifier is further connected with a ninth resistor and a tenth resistor, and the other end of the ninth resistor is connected with the 2.5V output terminal;
the other end of the tenth resistor is connected with the output end of the second operational amplifier, the output end of the second operational amplifier is further connected with an eleventh resistor and a twelfth resistor, the other end of the eleventh resistor is connected with the 5V output end, the other end of the twelfth resistor is connected with a second capacitor, the other end of the second capacitor is grounded, and the other end of the twelfth resistor is the output end of the frequency detection circuit and is connected with the detection identification circuit.
4. The intelligent analog testing device of claim 3, wherein the detection identification circuit is a microcontroller, and a terminal P1.3 of the microcontroller is connected to the output terminal of the voltage detection circuit and a terminal P1.2 is connected to the output terminal of the frequency detection circuit; the VCC end of the microcontroller is connected with the 5V output end, the GND end of the microcontroller is grounded, and the model STC12C2052AD of the microcontroller is obtained.
5. The intelligent simulation test device of claim 4, wherein the display circuit is a four-bit seven-segment digital tube, and the terminals A, B, C, D, E, F, G, DP, 1, 2, 3 and 4 of the four-bit seven-segment digital tube are connected with the terminals P1.7, P1.6, P1.5, P1.4, P1.1, P1.0, P3.7, P3.1, P3.2, P3.3, P3.4 and P3.5 of the microcontroller in a one-to-one manner;
the P3.0 end of the microcontroller is connected with a jog switch, the jog switch is used for controlling the four-digit seven-segment digital tube to switch and display a voltage value or a current value, the other end of the jog switch is connected with a thirteenth resistor, and the other end of the thirteenth resistor is connected with a 5V output end.
6. The intelligent simulation test device according to claim 5, wherein the power circuit comprises a transformer, a rectifier bridge, a first three-terminal regulator tube and a second three-terminal regulator tube, a first end and a second end of a primary coil of the transformer are respectively connected with a live wire and a zero wire of the external 220V alternating current mains supply in a one-to-one manner, a first end and a second end of a secondary coil of the transformer are respectively connected with a first output end and a second output end of the rectifier bridge in a one-to-one manner, a positive output end of the rectifier bridge is respectively connected with a VI end of the first three-terminal regulator tube and a VI end of the second three-terminal regulator tube, and a negative electrode of the rectifier bridge is respectively connected with a GND end of the first three-terminal regulator tube and a GND end of the second three-terminal regulator tube and grounded;
the VI end of the first three-terminal voltage regulator tube is connected with a third capacitor, the VO end of the first three-terminal voltage regulator tube is connected with a fourth capacitor, the VI end of the second three-terminal voltage regulator tube is connected with a fifth capacitor, the VO end of the second three-terminal voltage regulator tube is connected with a sixth capacitor, and the other ends of the third capacitor, the fourth capacitor, the fifth capacitor and the sixth capacitor are all grounded;
the VO end of the first three-terminal voltage-stabilizing tube is a 5V output end of the power circuit and is used for outputting 5V direct current, and the VO end of the second three-terminal voltage-stabilizing tube is a 2.5V output end of the power circuit and is used for outputting 2.5V direct current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122805510.4U CN217112599U (en) | 2021-11-16 | 2021-11-16 | Intelligent simulation testing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122805510.4U CN217112599U (en) | 2021-11-16 | 2021-11-16 | Intelligent simulation testing device |
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| CN217112599U true CN217112599U (en) | 2022-08-02 |
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| CN202122805510.4U Active CN217112599U (en) | 2021-11-16 | 2021-11-16 | Intelligent simulation testing device |
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