CN219475849U - Convenient wall hidden line detection device - Google Patents
Convenient wall hidden line detection device Download PDFInfo
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- CN219475849U CN219475849U CN202320247110.2U CN202320247110U CN219475849U CN 219475849 U CN219475849 U CN 219475849U CN 202320247110 U CN202320247110 U CN 202320247110U CN 219475849 U CN219475849 U CN 219475849U
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Abstract
The utility model relates to a line detection technology, in particular to a convenient wall hidden line detection device, which comprises a power supply, an inductance coil, an induction amplifying circuit and a state sensing module, wherein the inductance coil, the induction amplifying circuit and the state sensing module are sequentially connected; the inductance coil comprises a first inductance coil and a second inductance coil; the sensing amplifying circuit comprises a first Darlington tube, a second Darlington tube, an operational amplifier and a peripheral circuit; the state sensing module comprises a state display circuit; one end of the first inductance coil is grounded, the other end of the first inductance coil is connected with the first Darlington tube, one end of the second inductance coil is grounded, the other end of the second inductance coil is connected with the second Darlington tube, the first Darlington tube and the second Darlington tube are both connected with a power supply and are connected with an operational amplifier through a resistor, and the operational amplifier is connected with a state display circuit. The device can conveniently detect the wire in the wall, and the detection result is accurate and reliable. Has the characteristics of simple operation, small volume, portability, simple circuit and low cost.
Description
Technical Field
The utility model belongs to the technical field of line detection, and particularly relates to a convenient wall hidden line detection device.
Background
When people decorate at home, the wires are often buried in the wall, so that the effect is attractive and the practicability is not lost. In the face of more complex decoration demands, due to the defect of decoration data, some old communities cannot well position and trend of hidden lines in the wall, and certain danger exists when the wall is damaged. The utility model can simply and easily position the position and the trend of the hidden line, thereby greatly improving the safety and the high efficiency during decoration. Therefore, the design and implementation of a simple, convenient and efficient wall hidden line detection device has great practical significance.
Disclosure of Invention
Aiming at the problems existing in the background technology, the utility model provides the convenient wall hidden line detection device, so that the position and trend of the hidden line in the wall are easy to perceive, and the safety and the high efficiency during decoration are improved.
In order to solve the technical problems, the utility model adopts the following technical scheme: a convenient wall hidden line detection device comprises a power supply, an inductance coil, an induction amplifying circuit and a state sensing module which are connected in sequence; the inductance coil comprises a first inductance coil and a second inductance coil; the sensing amplifying circuit comprises a first Darlington tube, a second Darlington tube, an operational amplifier and a peripheral circuit; the state sensing module comprises a state display circuit; one end of the first inductance coil is grounded, the other end of the first inductance coil is connected with the first Darlington tube, one end of the second inductance coil is grounded, the other end of the second inductance coil is connected with the second Darlington tube, the first Darlington tube and the second Darlington tube are both connected with a power supply and are connected with an operational amplifier through a resistor, and the operational amplifier is connected with a state display circuit.
In the convenient wall hidden line detection device, the first inductance coil and the second inductance coil are both single-layer coils, one ends of the first inductance coil and the second inductance coil are grounded, and the other ends of the first inductance coil and the second inductance coil are respectively connected with the bases of the first Darlington tube and the second Darlington tube.
In the convenient wall hidden line detection device, an operational amplifier adopts an OPA690 chip, the No. 4 pin of the OPA690 chip U1 is grounded, the No. 7 pin is connected with a +5V power supply, the other ends of the second resistor R2 and the third resistor R3 are respectively connected with the No. 2 pin and the No. 3 pin of the OPA690 chip U1, and the two ends of the fifth resistor R5 are respectively connected with the No. 2 pin and the No. 6 pin of the OPA690 chip U1; one end of the fourth resistor R4 is connected with the No. 3 pin of the OPA690 chip U1, and the other end is grounded.
In the convenient wall hidden line detection device, the first darlington tube and the second darlington tube are connected by NPN+NPN connection, the power supply is +5V power supply, the +5V power supply supplies power for the first darlington tube and the second darlington tube, and the emitters of the first darlington tube and the second darlington tube are respectively connected with one ends of the second resistor R2 and the third resistor R3; the other ends of the second resistor R2 and the third resistor R3 are respectively connected with a No. 2 pin and a No. 3 pin of the OPA690 chip U1.
In the convenient wall hidden line detection device, the state display circuit comprises a first resistor R1, an LED lamp D1 and a buzzer B1, wherein the LED lamp D1 and the buzzer B1 are connected in parallel and then connected in series with the first resistor R1 to be connected between a No. 6 pin of an OPA690 chip U1 and the ground; if a dark line is detected, the LED lamp emits light, and the buzzer alarms.
Compared with the prior art, the utility model has the beneficial effects that: the device is a convenient detection device capable of detecting wires in walls, and the detection result is more accurate and reliable through differential signal input. Has the characteristics of simple operation, small volume, portability, simple circuit and low cost.
Drawings
FIG. 1 is a block diagram of an embodiment of the present utility model;
fig. 2 is a schematic circuit diagram of an embodiment of the present utility model.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described in the following in conjunction with the embodiments of the present utility model, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
The utility model will be further illustrated, but is not limited, by the following examples.
The embodiment of the convenient wall hidden line detection device comprises a power supply, an inductance coil, an induction amplifying circuit and a state sensing module. The wires in the wall can be detected conveniently, accurately and reliably. The position and the trend of the hidden line in the wall are easy to perceive, and the safety and the high efficiency during decoration are improved.
The embodiment is realized through the following technical scheme, as shown in fig. 1, a convenient wall hidden line detection device comprises a power supply, an inductance coil, an induction amplifying circuit and a state sensing module.
As shown in fig. 2, the inductor coils include two groups, a first inductor coil and a second inductor coil, the first inductor coil is used for blank comparison, the second inductor coil is used for inducing an alternating magnetic field generated by a wall hidden line, and a differential voltage signal is output to the induction amplifying circuit. The sensing amplifying circuit comprises a first Darlington tube, a second Darlington tube, an operational amplifier and a peripheral circuit; the state sensing module comprises a state display circuit; one end of the first inductance coil is grounded, the other end of the first inductance coil is connected with the first Darlington tube, one end of the second inductance coil is grounded, the other end of the second inductance coil is connected with the second Darlington tube, the first Darlington tube and the second Darlington tube are both connected with a power supply and are connected with an operational amplifier through resistors, the operational amplifier is connected with a state display circuit, and whether a dark line exists in a detection area is indicated through the state display circuit.
And the first inductance coil and the second inductance coil are all single-layer coils, one ends of the first inductance coil and the second inductance coil are grounded, and the other ends of the first inductance coil and the second inductance coil are respectively connected with the bases of the first darlington tube and the second darlington tube. The first and second Darlington tubes are connected by NPN+NPN, and the connection has the characteristics of higher current gain, high input impedance and low output impedance. And a +5V power supply is selected to supply power to the first darlington tube and the second darlington tube, and the output ends of the first darlington tube and the second darlington tube are respectively connected with one ends of the second resistor R2 and the third resistor R3.
And the operational amplifier adopts an OPA690 chip U1, and the output current can reach 190mA. The No. 4 pin of the OPA690 chip U1 is grounded, and the No. 7 pin is connected with a +5V power supply. OPA690 chip U1 processes and amplifies a received set of differential signals. The other ends of the second resistor R2 and the third resistor R3 are respectively connected with the No. 2 pin and the No. 3 pin of the OPA690 chip U1, so that a group of differential voltage signals are input. Two ends of the fifth resistor R5 are respectively connected with the No. 2 pin and the No. 6 pin of the OPA690 chip U1.
And the state display circuit consists of a first resistor R1 of a current limiting resistor, an LED lamp D1 and a buzzer B1, wherein the LED lamp D1 and the buzzer B1 are connected in parallel, and the first resistor R1 is connected in series between a No. 6 pin of the OPA690 chip U1 and the ground. If a dark line is detected, the LED lamp emits light, and the buzzer alarms.
The input signal of the detection device of the embodiment adopts a differential mode, one group of induction coils is placed at a non-wire flowing place, and the other group of induction coils is used for detecting on a wall in a circulating way and is used for sensing a dark line in the wall. And (3) introducing an alternating magnetic field generated by 50Hz alternating current, and further converting the alternating magnetic field into a voltage signal and outputting the voltage signal. After passing through the darlington tube, the voltage signals enter the inverting and non-inverting terminals of the operational amplifier OPA690 respectively. The No. 2 pin and the No. 3 pin of the operational amplifier OPA690 are respectively connected with the emitter of the Darlington tube through resistors, and the No. 6 pin is connected with a state display circuit. The state display circuit comprises a current limiting resistor, an LED lamp and a buzzer. The LED lamp and the buzzer are connected in parallel and then connected in series with the current limiting resistor R1 between the No. 6 pin of the OPA690 chip and the ground.
The foregoing is merely illustrative of the preferred embodiments of the present utility model and is not intended to limit the embodiments and scope of the present utility model, and it should be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the teachings of the present utility model, which are intended to be included within the scope of the present utility model.
Claims (5)
1. The convenient wall hidden line detection device is characterized by comprising a power supply, an inductance coil, an induction amplifying circuit and a state sensing module which are connected in sequence; the inductance coil comprises a first inductance coil and a second inductance coil; the sensing amplifying circuit comprises a first Darlington tube, a second Darlington tube, an operational amplifier and a peripheral circuit; the state sensing module comprises a state display circuit; one end of the first inductance coil is grounded, the other end of the first inductance coil is connected with the first Darlington tube, one end of the second inductance coil is grounded, the other end of the second inductance coil is connected with the second Darlington tube, the first Darlington tube and the second Darlington tube are both connected with a power supply and are connected with an operational amplifier through a resistor, and the operational amplifier is connected with a state display circuit.
2. The portable wall hidden line detection device according to claim 1, wherein the first inductance coil and the second inductance coil are both single-layer coils, one ends of the first inductance coil and the second inductance coil are grounded, and the other ends of the first inductance coil and the second inductance coil are respectively connected with bases of the first darlington tube and the second darlington tube.
3. The convenient wall hidden line detection device according to claim 1, wherein the operational amplifier adopts an OPA690 chip, a No. 4 pin of the OPA690 chip (U1) is grounded, a No. 7 pin is connected with a +5V power supply, the other ends of the second resistor (R2) and the third resistor (R3) are respectively connected with a No. 2 pin and a No. 3 pin of the OPA690 chip (U1), and the two ends of the fifth resistor (R5) are respectively connected with a No. 2 pin and a No. 6 pin of the OPA690 chip (U1); one end of the fourth resistor (R4) is connected with the No. 3 pin of the OPA690 chip (U1), and the other end is grounded.
4. The portable wall hidden line detection device according to claim 3, wherein the first darlington tube and the second darlington tube are connected by NPN+NPN connection, the power supply is +5V power supply, the +5V power supply supplies power to the first darlington tube and the second darlington tube, and the emitters of the first darlington tube and the second darlington tube are respectively connected with one ends of a second resistor (R2) and a third resistor (R3); the other ends of the second resistor (R2) and the third resistor (R3) are respectively connected with a No. 2 pin and a No. 3 pin of the OPA690 chip (U1).
5. The portable wall hidden line detection device according to claim 3, wherein the status display circuit comprises a first resistor (R1), an LED lamp (D1) and a buzzer (B1), wherein the LED lamp (D1) and the buzzer (B1) are connected in parallel and then connected in series with the first resistor (R1) to be connected between pin 6 of the OPA690 chip (U1) and the ground; if a dark line is detected, the LED lamp emits light, and the buzzer alarms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320247110.2U CN219475849U (en) | 2023-02-16 | 2023-02-16 | Convenient wall hidden line detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320247110.2U CN219475849U (en) | 2023-02-16 | 2023-02-16 | Convenient wall hidden line detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219475849U true CN219475849U (en) | 2023-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320247110.2U Active CN219475849U (en) | 2023-02-16 | 2023-02-16 | Convenient wall hidden line detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219475849U (en) |
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2023
- 2023-02-16 CN CN202320247110.2U patent/CN219475849U/en active Active
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