CN216848181U - Alarm system for pipeline surveying instrument - Google Patents
Alarm system for pipeline surveying instrument Download PDFInfo
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- CN216848181U CN216848181U CN202122908405.3U CN202122908405U CN216848181U CN 216848181 U CN216848181 U CN 216848181U CN 202122908405 U CN202122908405 U CN 202122908405U CN 216848181 U CN216848181 U CN 216848181U
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Abstract
The application relates to an alarm system for pipeline survey instrument, including receiver, transmitter, still include: the wireless signal transmitting module is arranged on the transmitter and used for transmitting radio waves; the wireless signal receiving module is arranged on the receiver and used for receiving radio waves and outputting a converted voltage signal; the amplifying module is coupled to the wireless signal receiving module and used for receiving the converted voltage signal and outputting an amplified voltage signal; the comparison module is coupled with the amplification module, is internally preset with reference voltage, and is used for comparing the amplified voltage signal with the reference voltage and outputting a comparison signal; and the alarm module is coupled with the comparison module and used for receiving the comparison signal to alarm. The alarm system is arranged, so that the phenomenon that time is wasted when personnel and a receiver carry out pipeline detection at a position too far away from a transmitter is not easy to occur, and the pipeline detection efficiency is improved.
Description
Technical Field
The application relates to the technical field of pipeline detection, in particular to an alarm system for a pipeline surveying instrument.
Background
The pipeline detector can quickly and accurately detect the position, the trend and the depth of underground tap water pipelines, metal pipelines, cables and the like and the position and the size of a damaged point of an anticorrosive coating of a steel pipeline under the condition of not damaging ground covering soil, and is one of necessary instruments for generally surveying underground pipelines.
The pipeline detector comprises a transmitter and a receiver. A transmitter: applying a signal current with a special frequency to a measured pipeline, and generally adopting three excitation modes of a direct connection method, an induction method and a clamp method; a receiver: the receiver is internally provided with an induction coil, receives a magnetic field signal of the pipeline, and the coil generates induction current so as to calculate the trend and the path of the pipeline.
In view of the above-mentioned related technologies, because the transmitter forms an eddy current in the pipeline through electromagnetic induction, the pipeline eddy current far away from the transmitter decreases, the magnetic field signal will gradually weaken, but the person cannot accurately judge the detection distance, which easily causes the phenomenon that the person and the receiver perform pipeline detection at a position too far away from the transmitter and wastes time.
SUMMERY OF THE UTILITY MODEL
In order to enable personnel and a receiver to conduct pipeline detection at a position too far away from a transmitter and avoid time waste, the application provides an alarm system for a pipeline surveying instrument.
The application provides an alarm system for pipeline surveying instrument adopts following technical scheme.
An alarm system for pipeline survey instrument, includes receiver, transmitter, still includes:
the wireless signal transmitting module is arranged on the transmitter and used for transmitting radio waves;
The wireless signal receiving module is arranged on the receiver and used for receiving radio waves and outputting a converted voltage signal;
the amplifying module is coupled to the wireless signal receiving module and used for receiving the converted voltage signal and outputting an amplified voltage signal;
the comparison module is coupled with the amplification module, is internally preset with reference voltage, and is used for comparing the amplified voltage signal with the reference voltage and outputting a comparison signal; and (c) a second step of,
and the alarm module is coupled with the comparison module and used for receiving the comparison signal to alarm.
By adopting the technical scheme, the closer the distance to the signal source is, the higher the intensity of the signal or the radio wave is, the larger the voltage value of the voltage signal generated after the wireless signal receiving module receives the voltage signal is, the amplifying module amplifies the voltage signal so as to compare the voltage signal by the comparing module, the reference voltage is set according to the actual measurable range of the transmitter, when the voltage signal is smaller than the reference voltage, the distance between the receiver and the transmitter exceeds the actual measurable range of the transmitter, the alarm module alarms to remind personnel to return, and the phenomenon that the personnel and the receiver perform pipeline detection at the position too far away from the transmitter to waste time is not easy to occur.
Preferably, the alarm module includes triode Q1, bee calling organ, triode Q1's base is coupled with the output of comparison module, the one end of collecting electrode and bee calling organ is coupled, the projecting pole ground connection, another termination VCC of bee calling organ.
By adopting the technical scheme, the triode Q1 is controlled to be conducted through the comparison module, so that the buzzer is electrified to sound and alarm.
Preferably, the method further comprises the following steps:
the proximity switch is arranged at the bottom of the receiver and used for detecting whether the bottom end of the receiver meets the requirements with the ground or not and outputting a detection signal;
and the input end of the NOT gate is coupled with the proximity switch, and the output end of the NOT gate is connected with an electric connection point between the comparison module and the triode Q1.
By adopting the technical scheme, the distance between the bottom end of the receiver and the ground can be detected by the arrangement of the proximity switch, and the buzzer sounds to alarm when the bottom end of the receiver is far away from the ground.
Preferably, a starting switch S1 for a person to press is connected in series between an electrical connection point between the comparing module and the transistor Q1 and between the not gate.
By adopting the technical scheme, only when a person presses the starting switch S1 to detect the pipeline, the detection signal sent by the proximity switch can be received by the triode Q1, so that the receiver is prevented from sending a buzzing alarm in the carrying process.
Preferably, the interval chirping control module comprises a time-delay off relay KM1, one end of a coil of the time-delay off relay KM1 is coupled with an emitter of a triode Q1, the other end of the coil is grounded, and a normally closed contact switch of the time-delay off relay KM1 is connected in series between a starting switch S1 and a NAND gate.
By adopting the technical scheme, the arrangement of the delay disconnection relay KM1 ensures that the sounding alarm of the receiver far away from the ground and the sounding alarm of the receiver far away from the transmitter are different, thereby being convenient for personnel to distinguish.
Preferably, the interval chirping control module comprises a time-delay off relay KM1, one end of a coil of the time-delay off relay KM1 is coupled with an emitter of a triode Q1, the other end of the coil is grounded, and a normally closed contact switch of the time-delay off relay KM1 is connected in series between a starting switch S1 and a NAND gate.
By adopting the technical scheme, the circuit between the photoelectric switch and the alarm module can be automatically cut off after the buzzer buzzes for a short time by arranging the time delay cut-off relay KM1, so that the buzzing of the buzzer is stopped, and then the time delay cut-off relay KM1 is automatically reset, so that the buzzer can continue to buzz.
Preferably, an inductor L1 is connected in series between the coil of the time-delay disconnection relay KM1 and the emitter of the transistor Q1.
By adopting the technical scheme, the inductor L1 is arranged, so that after the triode Q1 is conducted, the coil of the delay disconnection relay KM1 is electrified after a certain time delay, and the intermittent sounding alarm of the buzzer is more stable.
Preferably, the amplifying module comprises an operational amplifier OA1, a resistor R1 and a resistor R2, wherein a non-inverting input terminal of the operational amplifier OA1 is coupled to the output terminal of the wireless signal receiving module, one end of the resistor R1 is coupled to ground, the other end of the resistor R2 is coupled to an inverting input terminal of the operational amplifier OA1, two ends of the resistor R2 are coupled to an inverting input terminal and an output terminal of the operational amplifier OA1, respectively, and an output terminal of the operational amplifier OA1 is coupled to the comparing module.
By adopting the technical scheme, the operational amplifier is the amplifier which has high gain, high input impedance, low temperature drift and flexible application and is closest to an ideal state, and can accurately amplify the distance information.
Preferably, the comparing module comprises a comparator OA2, an inverting input of the comparator OA2 is coupled to the output of the amplifying module, a non-inverting input is provided for inputting a reference voltage, and an output of the comparator OA2 is coupled to the alarm module.
By adopting the technical scheme, the comparator OA2 can output a positive level comparison signal when the amplified voltage signal is lower than the reference voltage, and the alarm module is started to alarm.
In summary, the present application includes at least one of the following beneficial technical effects:
the alarm system ensures that the phenomenon of time waste caused by pipeline detection of personnel and a receiver at a position too far away from a transmitter is not easy to occur, and the pipeline detection efficiency is improved;
the alarm system can send intermittent sound alarm to remind people when the distance between the receiver and the ground is too far, and the people can correct the alarm system in time, so that convenience is brought.
Drawings
Fig. 1 is a perspective view of an embodiment of the present application.
Fig. 2 is a circuit diagram of an embodiment of the present application.
Description of reference numerals: 1. a receiver; 2. a transmitter; 3. a wireless signal transmitting module; 4. a wireless signal receiving module; 5. an amplifying module; 6. a comparison module; 7. a proximity detection module; 8. an alarm module; 9. and an interval chirping control module.
Detailed Description
The embodiment of the application discloses alarm system for pipeline survey instrument.
Referring to fig. 1 and 2, an alarm system for a pipeline survey instrument includes a receiver 1, a transmitter 2, a wireless signal transmitting module 3, a wireless signal receiving module 4, an amplifying module 5, a comparing module 6, a proximity detecting module 7, and an alarm module 8. The wireless signal transmitting module 3 is fixedly arranged on the transmitter 2, and the wireless signal receiving module 4, the amplifying module 5, the comparing module 6, the approach detecting module 7 and the alarming module 8 are all fixedly arranged in the receiver 1.
The following describes each module in detail:
referring to fig. 2, a wireless signal transmitting module 3 fixedly installed on the transmitter 2 for transmitting radio waves;
the wireless signal receiving module 4 is fixedly arranged on the receiver 1, is in wireless connection with the wireless signal transmitting module 3 through WIFI, and is used for receiving radio waves and outputting a converted voltage signal;
and an amplifying module 5, coupled to the wireless signal receiving module 4, for receiving the converted voltage signal and outputting an amplified voltage signal. Specifically, the method comprises the following steps: the amplifying module 5 comprises an operational amplifier OA1, a resistor R1, and a resistor R2, wherein a non-inverting input terminal of the operational amplifier OA1 is coupled to the output terminal of the wireless signal receiving module 4 for receiving the converted voltage signal, one terminal of the resistor R1 is coupled to ground, the other terminal is coupled to an inverting input terminal of the operational amplifier OA1, two terminals of the resistor R2 are coupled to an inverting input terminal and an output terminal of the operational amplifier OA1, respectively, and an output terminal of the operational amplifier OA1 is coupled to the comparing module 6. The output of the operational amplifier OA1 is coupled to the comparison module 6.
And the comparison module 6 is coupled to the amplification module 5, is preset with a reference voltage therein, and is used for comparing the amplified voltage signal with the reference voltage and outputting a comparison signal. Specifically, the method comprises the following steps: the comparison module 6 comprises a comparator OA2, an inverting input of the comparator OA2 is coupled to the output of the operational amplifier OA1, a non-inverting input is provided for inputting a reference voltage, and an output of the comparator OA2 is coupled to the alarm module 8.
And the alarm module 8 is coupled to the comparison module 6 and used for receiving the comparison signal to alarm. Specifically, the method comprises the following steps: the alarm module 8 comprises a triode Q1 and a buzzer, wherein the base of the triode Q1 is coupled with the output end of the comparator OA2, the collector of the triode Q1 is coupled with one end of the buzzer, the other end of the buzzer is coupled with a power supply VCC, the emitter of the triode Q1 is coupled with an inductor L1, and the other end of the inductor L1 is coupled with the interval chirp control module 9.
Referring to fig. 2, the interval chirp control module 9 includes a delay off relay KM1, an emitter of the transistor Q1 is coupled to a coil of the delay off relay KM1, and the other end of the coil of the delay off relay KM1 is grounded. The alarm module 8 is also coupled to the proximity detection module 7. The proximity detection module 7 comprises a proximity switch and a not gate, the proximity switch is a photoelectric proximity switch, the proximity switch is fixed at the bottom of the receiver 1 and used for detecting the distance between the bottom end of the receiver 1 and the ground, after the ground enters the detection range of the proximity switch, the proximity switch outputs a detection signal, the input end of the not gate is coupled with the output end of the proximity switch, the output end of the not gate is coupled with one end of a normally closed contact switch of a time-delay disconnection relay KM1, the other end of the normally closed contact switch of the time-delay disconnection relay KM1 is coupled with a starting switch S1, and the other end of the starting switch S1 is coupled with an electrical connection point between a comparator OA2 and a triode Q1. Starting switch S1 makes, when personnel need use receiver 1 to carry out route detection, personnel can make and be close detection module 7 and get the circuit and switch on with alarm module 8 through closed starting switch S1, detects the distance on receiver 1 and ground, avoids personnel to take receiver 1 too high, leads to the detection effect not good.
The setting of time delay disconnection relay KM1 can be when proximity switch and ground distance are far away for buzzer intermittent type nature sound warning, and when signal reception module and signal transmission module distance were far away, the buzzer can sound always, and the personnel of being convenient for distinguish these two kinds of circumstances.
The implementation principle of the alarm system for the pipeline surveying instrument in the embodiment of the application is as follows: when a person holds the receiver 1 by hand to detect a pipeline route near the transmitter 2, after the person leaves the transmitter 2 for a certain distance, a signal received by the signal receiving module is weakened, so that an amplified voltage signal received by the comparator OA2 is smaller than a reference voltage, the triode Q1 is connected with a buzzer to alarm, the person is reminded to measure an over-range, and the phenomenon that the person and the receiver 1 perform pipeline detection at a distance too far away from the transmitter 2 to waste time is not easy to occur.
The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. The utility model provides an alarm system for pipeline survey appearance, includes receiver (1), transmitter (2), its characterized in that still includes:
A wireless signal transmitting module (3) mounted on the transmitter (2) for transmitting radio waves;
the wireless signal receiving module (4) is arranged on the receiver (1) and used for receiving radio waves and outputting a converted voltage signal;
the amplifying module (5) is coupled to the wireless signal receiving module (4) and used for receiving the converted voltage signal and outputting an amplified voltage signal;
the comparison module (6) is coupled with the amplification module (5), is internally preset with a reference voltage, and is used for comparing the amplified voltage signal with the reference voltage and outputting a comparison signal; and the number of the first and second groups,
and the alarm module (8) is coupled to the comparison module (6) and used for receiving the comparison signal to alarm.
2. The alarm system for the pipeline surveying instrument of claim 1, wherein: alarm module (8) are including triode Q1, bee calling organ, triode Q1's base is coupled with the output of comparison module (6), the one end of collecting electrode and bee calling organ is coupled, projecting pole ground connection, another termination power VCC of bee calling organ.
3. The alarm system for a pipeline surveying instrument of claim 2, further comprising:
the proximity switch is arranged at the bottom of the receiver (1) and used for detecting whether the bottom end of the receiver (1) meets the requirement with the ground or not and outputting a detection signal;
And the input end of the NOT gate is coupled with the proximity switch, and the output end of the NOT gate is connected with an electric connection point between the comparison module (6) and the triode Q1.
4. The alarm system for the pipeline surveying instrument of claim 3, wherein: an electric connection point between the comparison module (6) and the triode Q1 and a starting switch S1 pressed by a person are connected in series between the NOT gate and the comparison module.
5. The alarm system for the pipeline surveying instrument of claim 3, wherein: the proximity switch is coupled with an interval buzzing control module (9), and the interval buzzing control module (9) is used for receiving a detection signal to control the buzzer to buzze intermittently.
6. The alarm system for the pipeline surveying instrument of claim 5, wherein: the interval chirping control module (9) comprises a time-delay disconnection relay KM1, one end of a coil of the time-delay disconnection relay KM1 is coupled with an emitting electrode of a triode Q1, the other end of the coil is grounded, and a normally closed contact switch of the time-delay disconnection relay KM1 is connected in series between a starting switch S1 and a NAND gate.
7. The alarm system for the pipeline surveying instrument of claim 6, wherein: an inductor L1 is connected in series between the coil of the time-delay disconnection relay KM1 and the emitter of the triode Q1.
8. The alarm system for the pipeline surveying instrument of claim 1, wherein: the amplifying module (5) comprises an operational amplifier OA1, a resistor R1 and a resistor R2, wherein a non-inverting input terminal of the operational amplifier OA1 is coupled with an output terminal of the wireless signal receiving module (4), one end of the resistor R1 is coupled with the ground, the other end of the resistor R1 is coupled with an inverting input terminal of the operational amplifier OA1, two ends of the resistor R2 are respectively coupled with an inverting input terminal and an output terminal of the operational amplifier OA1, and an output terminal of the operational amplifier OA1 is coupled with the comparing module (6).
9. The alarm system for the pipeline surveying instrument of claim 1, wherein: the comparison module (6) comprises a comparator OA2, the inverting input of the comparator OA2 is coupled to the output of the amplification module (5), the non-inverting input is supplied with a reference voltage, and the output of the comparator OA2 is coupled to the alarm module (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122908405.3U CN216848181U (en) | 2021-11-25 | 2021-11-25 | Alarm system for pipeline surveying instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122908405.3U CN216848181U (en) | 2021-11-25 | 2021-11-25 | Alarm system for pipeline surveying instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216848181U true CN216848181U (en) | 2022-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122908405.3U Active CN216848181U (en) | 2021-11-25 | 2021-11-25 | Alarm system for pipeline surveying instrument |
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| Country | Link |
|---|---|
| CN (1) | CN216848181U (en) |
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2021
- 2021-11-25 CN CN202122908405.3U patent/CN216848181U/en active Active
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