CN112652153A - Alarm system for preventing construction machinery from mistakenly touching power transmission line - Google Patents
Alarm system for preventing construction machinery from mistakenly touching power transmission line Download PDFInfo
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- G—PHYSICS
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- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems; Audible personal calling systems
- G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
- G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
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Abstract
The invention provides an alarm system for preventing construction machinery from mistakenly touching a power transmission line, and belongs to the technical field of construction safety. The device comprises a detection module, a processing module, an alarm module and a transmission module; the detection module is arranged at the top end of the construction machine and used for detecting the safety state of the top end of the construction machine; the processing module is used for processing the data detected by the detection module; the alarm module is arranged in an operation chamber of the construction machine and used for giving an alarm to an operator; the transmission module is used for signal connection with the processing module and the alarm module; the detection module comprises a height detection unit, a distance detection unit and a near-electricity detection unit; the height detection unit is an air pressure sensor and is used for detecting the height of the detection module from the ground; the distance detection unit is an ultrasonic sensor and is used for detecting the distance between the detection module and the power transmission line; the near-electricity detection unit is used for detecting whether the detection module is close to the power transmission line. The invention can avoid the lifting overrun of the construction machinery and prevent the mistaken collision of the transmission line by combining other monitoring modes.
Description
Technical Field
The invention belongs to the technical field of construction safety, and particularly relates to an alarm system for preventing construction machinery from mistakenly touching a power transmission line.
Background
The failure of the power transmission line is a big cause of the failure of the power grid, the protection work of the power transmission facility is well done, the power transmission facility is an important condition for the safe operation of the power grid and is a basic condition for promoting the economic development and maintaining the social stability, so the power transmission line cannot have any problem, the stability of the power grid is seriously influenced by the intentional or unintentional external force damage, and the immeasurable serious consequence is caused to the social economy.
With the accelerated progress of urbanization, construction phenomena near the power transmission line are more and more, wherein some large construction machines, especially some large construction machines with higher height or higher arms after being extended are not easy to be judged by the constructors located in the operating room, so that the safety distance between the construction machines and the wire is not enough, the power transmission line is easy to discharge, short circuit, trip or damage, and the life safety of the constructors is also harmed.
The utility model discloses a utility model patent that publication number is CN208506939U provides a nearly electric alarm system is prevented to high voltage on-the-spot construction machinery, is provided with nearly electric detection device and nearly electric receiving arrangement on this alarm system's the construction machinery, nearly electric detection device sets up in construction machinery's construction end, nearly electric receiving arrangement sets up in construction machinery's driver's cabin department. The power transmission line can be close to the construction end to the response antenna that sets up on the nearly electric detection device of this patent, and communication antenna can contact with nearly electric receiving arrangement, transmission alarm signal and data, then nearly electric receiving arrangement on the construction machinery can pass through bee calling organ and speaker warning staff.
Another patent of the invention with publication number CN111207787A proposes a construction distance early warning device for high voltage transmission lines, which is provided with an alarm, when the sensor senses the high voltage transmission line, the servo motor is operated through a connecting line, the driving belt is driven to drive the upper helical gear by the lower helical gear, the connecting gear is rotated to make the rack downward to make the contact and the power on, the buzzer vibrates to sound, the buzzer is heard by people, and the people are alerted to avoid the contact with the high voltage transmission line.
The above patents all use the principle of near-electric induction to monitor whether the construction machine is close to the power transmission line, but if the power transmission line is not electrified, the patents cannot give an alarm.
Disclosure of Invention
The invention aims to solve the technical problem of providing an alarm system for preventing construction machinery from mistakenly touching a power transmission line aiming at the defects of the prior art.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a prevent that construction machinery mistake from bumping transmission line's alarm system, includes: the device comprises a detection module, a processing module, an alarm module and a transmission module;
the detection module is arranged at the top end of the construction machine and used for detecting the safety state of the top end of the construction machine;
the processing module is used for processing the data detected by the detection module;
the alarm module is arranged in an operation chamber of the construction machine and used for giving an alarm to an operator;
the transmission module is used for signal connection between the processing module and the alarm module;
the detection module comprises a height detection unit, a distance detection unit and a near-electricity detection unit;
the height detection unit is an air pressure sensor and is used for detecting the height of the detection module from the ground;
the distance detection unit is an ultrasonic sensor and is used for detecting the distance between the detection module and the power transmission line;
the near-electricity detection unit is used for detecting whether the detection module is close to the power transmission line.
Further, the processing module comprises a first processing unit arranged at the top end of the construction machine and a second processing unit arranged in the operating chamber of the construction machine; the transmission module is used for signal connection between the first processing unit and the second processing unit; the construction machine operating room is also internally provided with a display module for displaying the height of the top end of the construction machine; the display module and the alarm module are in signal connection with the second processing unit.
Further, the height detection unit comprises a first height detection unit arranged at the top end of the construction machine and a second height detection unit arranged in the operation chamber of the construction machine; the second height detection unit is in signal connection with the second processing unit.
Further, the alarm module comprises an acoustic alarm.
Further, the alarm module also comprises a light alarm.
Further, the transmission module utilizes a bluetooth 4.0 protocol for data transmission.
Further, the display module is an LED dot matrix display screen.
Further, the sound alarm is a loudspeaker.
Further, the light alarm is a multicolor alarm lamp.
When a power system is constructed or is constructed close to a power transmission line, the hoisting operation is inevitably carried out under the power transmission line. When a large construction machine is lifted or hoisted, a driver is difficult to judge the distance between the top end of the machine and a power transmission line by visual inspection, and personal safety and large-scale power failure accidents are often caused because the operation is not stopped in time due to the short distance. The existing solution is to install an alarm device at the top end of the construction machinery, and when the alarm device monitors that the distance between the alarm device and the power transmission line is too small, an alarm signal is sent out to remind an operator to pay attention.
The alarm device is mainly realized by using a near-electric induction principle, for example, in the prior art of patent CN103971486A, documents (Yaoweiming, Wangyiyi, Chenjun, and the like, design of a crane operation alarm and monitoring system under a high-voltage power transmission line [ J ] electric technology, 2016(12): 82-86.) and the like, an electric field sensor is adopted to measure the space electric field intensity, the electric field intensity is converted into a voltage signal, and then the distance between the electric field intensity and the power transmission line is judged according to the voltage, so that whether the electric field intensity is close to the power transmission line is judged. But the detection of the non-electrified transmission line cannot be realized by using the near-electric induction method.
In this case, an alarm device using a camera for power transmission line detection appears as in patent CN210006186U, but the camera uses visible light to identify the power transmission line, and is very easily illuminated by sunlight to affect the identification effect due to the fact that the camera is directed to the sky when installed. For example, the application of a radar in a crane anti-collision high-voltage line system, such as a fire control radar technology 2014,43(3): 17-19.) and a literature (king brightness, a crane anti-collision high-voltage line monitoring system based on X-band radar ranging, an electronic test 2013(10): 19-21.) are provided, and an alarm device for detecting the distance between the crane anti-collision high-voltage line monitoring system and the power transmission line by using the X-band radar is proposed, but the radar detection technology is complex in structure and high in cost. Warning devices have also been proposed, such as CN201703993U, which measure the distance to the transmission line using a laser, such as CN204847986U, using ultrasound.
However, the irradiation angle or emission angle of the camera, the millimeter wave radar, the laser ranging and the ultrasonic ranging is limited and basically aligned to the upper side, and when the construction machine rises from the safe distance of the power transmission line to a height exceeding the height of the power transmission line, the power transmission line positioned at the lower part cannot be monitored, and at the moment, if the construction machine moves, the construction machine may collide with the power transmission line.
Based on the problems, the inventor researches a method capable of detecting the top height of the construction machine, takes height monitoring as a main monitoring means of an alarm device, avoids the lifting overrun of the construction machine, and improves the effectiveness and accuracy of monitoring by combining other monitoring modes.
The invention has the following beneficial effects:
the detection module comprises a height detection unit capable of detecting the height of the top end of the construction machine in real time, a distance detection unit capable of detecting the distance from the top end of the construction machine to the power transmission line, and a near-electricity detection unit capable of detecting whether the top end of the construction machine is close to the power transmission line, and sends out an alarm signal according to detection data, wherein the alarm signal is sent to the alarm module in a wireless transmission mode and sends out an audible and visual alarm to remind an operator to stop operation or cautious operation.
The invention adopts three combined monitoring modes of height monitoring, distance monitoring and near-electricity monitoring, provides multiple guarantees, can be suitable for different power transmission lines, and can realize monitoring even the power transmission line which is not electrified; the invention can effectively avoid the power transmission line from discharging, short-circuiting, tripping or damaging due to the fact that the construction machinery exceeds the safety distance between the construction machinery and the power transmission line, ensure the personal safety of operators, greatly improve the safety of construction operation close to the power transmission line, ensure the safe operation of the power transmission line and reduce safety accidents and economic losses.
The display module is arranged in the operating room of the construction machine, can display the height of the top end of the construction machine, enables an operator of the construction machine to visually know the current height, and can improve the attention of the operator to the height during operation and the safety during construction.
The invention utilizes Arduino as a hardware platform and a software platform, so that the invention has the characteristics of convenience, flexibility, easy expansion and convenient programming. The invention utilizes the Bluetooth 4.0 protocol to transmit signals, supports an ultra-long effective connection distance, has a transmission distance of 80m, and can be suitable for various elevated construction machines.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
FIG. 1: the circuit schematic block diagram of embodiment 1 of the present invention.
FIG. 2: the circuit diagram of embodiment 1 of the present invention.
FIG. 3: the circuit schematic block diagram of embodiment 2 of the present invention.
FIG. 4: the circuit diagram of embodiment 2 of the present invention.
FIG. 5: the circuit schematic block diagram of embodiment 3 of the present invention.
FIG. 6: circuit diagram of embodiment 3 of the present invention.
FIG. 7: the circuit diagram of embodiment 4 of the present invention.
Wherein: 1-detection module, 11-height detection unit, 111-first height detection unit, 112-second height detection unit, 12-distance detection unit, 13-near electricity detection unit, 2-processing module, 21-first processing unit, 22-second processing unit, 3-alarm module, 4-transmission module, 41-first transmission unit, 42-second transmission unit and 5-display module.
Detailed Description
For a better understanding of the invention, the following description is given in conjunction with the examples and the accompanying drawings, but the invention is not limited to the examples. In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details.
Example 1:
referring to fig. 1, the present invention includes: the device comprises a detection module 1, a processing module 2, an alarm module 3 and a transmission module 4.
The detection module 1 is installed at the top end of the construction machine, and is provided with various sensors for detecting the safety height of the construction machine. Specifically, the detection module 1 includes a height detection unit 11, a distance detection unit 12, and a near-electricity detection unit 13.
The processing module 2 is arranged at the same position as the detection module 1, is also arranged at the top end of the construction machine, is in signal connection with the detection module 1, and is used for processing the data detected by the detection module 1. The processing module 2 of the present embodiment is implemented by an Arduino motherboard, and the specific model is Arduino Nano.
The height detection unit 11 is used for detecting the height from the ground, and is specifically realized by adopting an air pressure sensor. The air pressure sensor can acquire a temperature value and an air pressure value of the position, and the altitude can be acquired by calculating the acquired temperature value and air pressure value; and then, the actual height of the top end of the construction machine can be judged by monitoring the change of the altitude. The height detection unit 11 of the embodiment adopts a GY-63 air pressure sensor module, the GY-63 air pressure sensor module is integrated with an MS5611 air pressure sensor chip, and the resolution of the MS5611 air pressure sensor chip can reach 10 cm.
The distance detection unit 12 is used for detecting the distance to the power transmission line, and is specifically realized by an ultrasonic sensor. The ultrasonic sensor continuously detects the echo reflected by an obstacle (power transmission line) after ultrasonic wave is transmitted, measures the time difference between the transmitted echo and the received echo, and further calculates the distance between the ultrasonic sensor and the power transmission line according to the time difference. The distance detection unit 12 of the embodiment adopts an ultrasonic sensor module with the model number HC-SR04, and the HC-SR04 ultrasonic sensor module is integrated with a CS100A ultrasonic ranging chip.
The near-electric detection unit 13 is configured to detect whether to approach the power transmission line, in this embodiment, the near-electric induction antenna is connected to the processing module 2, and the processing module 2 may detect an induction voltage on the near-electric induction antenna, and then may determine whether to approach the power transmission line according to the magnitude of the induction voltage. The near-induction antenna adopts a metal rod antenna or a metal spiral antenna.
The alarm module 3 is installed in an operation room of the construction machine and used for giving an alarm to an operator. The alarm module 3 comprises a sound alarm capable of giving out alarm sound, and the sound alarm is a loudspeaker in the embodiment; the alarm module 3 is also provided with a power amplifier module for driving a loudspeaker, the model of the power amplifier module is XY-BT-Mini, and Bluetooth connection is supported.
And the transmission module 4 is used for signal connection between the processing module 2 and the alarm module 3. In this embodiment, the transmission module 4 performs data transmission by using bluetooth, and specifically uses a bluetooth module with a model number of HC-05.
Referring to fig. 2, components mounted to the top end of the construction machine are as follows: module U1 is the Arduino mainboard, and module U2 is GY-63 baroceptor module, and module U3 is HC-SR04 ultrasonic sensor module, and module U4 is HC-05 bluetooth module, and antenna L1 is nearly electric induction antenna.
The VCC pin of the module U2 is connected to the 3V3 pin of the module U1, the SCL pin is connected to the A3 pin of the module U1, the SDA pin is connected to the A4 pin of the module U1, and the GND pin is grounded.
The ECHO pin of the module U3 is connected to the D5 pin of the module U1, the TRIG pin is connected to the D4 pin of the module U1, the VCC pin is connected to the +5V pin of the module U1, and the GND pin is grounded.
The VCC pin of the module U4 is connected with the +5V pin of the module U1, the UART-TX pin is connected with the D2 pin of the module U1, the UART-RX pin is connected with the D3 pin of the module U1 through a resistor R1, the UART-RX pin is grounded after passing through a resistor R1 and a resistor R2, and the GND pin is grounded.
The antenna L1 is connected to the a0 pin of the module U1 and is grounded through a resistor R3.
The module U1 supports 5V or 6-20V external power supply, and for the power supply of the module U1, a 9V battery can be directly connected with VIN and GND pins of the module U1 for power supply, and a lithium ion battery can be boosted to 5V and then connected with a +5V pin of the module U1 for power supply.
The components installed in the operating room of the construction machine are as follows: the module U5 is an XY-BT-Mini power amplifier module, and a right channel pin R of the module U5 is connected with an alarm speaker SP1 (or a left channel pin L is connected with the alarm speaker SP 1). The module U5 supports the power supply of an external power supply of 3.7V-5V, so that the lithium ion battery can be directly connected with the B + and B-pins for power supply, and an operating room power supply can be converted into 5V and then connected with the B + and B-pins for power supply.
In this embodiment, the processing module 2 completes the work by using a program stored in an Arduino motherboard (module U1).
The embodiment is realized by adopting the following steps when the GY-63 air pressure sensor module is used for monitoring the height from the ground:
s11, placing the detection module 1 on the ground for starting, and manually setting the maximum height which can be lifted by the construction machine;
s12, reading the air pressure value and the temperature value detected by the GY-63 air pressure sensor module by a program;
s13, calculating the altitude according to the obtained air pressure value and temperature value;
s14, storing the altitude (namely the poster height on the ground) acquired at the moment as an initial height;
s15, mounting the detection module 1 on the top end of the construction machine;
s16, automatically repeating the steps S12-S13 to obtain the current altitude, calculating the height of the top end of the construction machine according to the initial height, and playing an alarm sound if the height of the top end of the machine is larger than a preset value.
As for the setting method of the maximum height in step S11, the setting can be performed by the bluetooth connection processing module 2 using a mobile phone.
In this embodiment, when the HC-SR04 ultrasonic sensor module is used to monitor the distance to the power transmission line, the following steps are adopted:
s21, setting the state of the D4 pin of the module U1 as output and the state of the D5 pin as input;
s22, controlling the HC-SR04 ultrasonic sensor module to emit ultrasonic waves through a D4 pin of the module U1;
s23, detecting the time interval from the emission of the ultrasonic wave to the reception of the reflected ultrasonic wave through the D5 pin of the module U1;
s24, calculating the distance from the power transmission line by using the acquired time interval;
and S25, continuously repeating the steps S22-S24 to obtain the distance from the power transmission line, and if the obtained distance is smaller than a preset value, playing an alarm sound.
In this embodiment, when the near-induction antenna is used to monitor whether to approach the power transmission line, the following steps are adopted:
s31, reading an input signal through the A0 pin of the module U1;
s32, calculating the frequency of the input signal, and if the frequency is power frequency, acquiring the signal value of the input signal;
and S33, continuously repeating the steps S31-S32 to obtain the signal value of the input signal, and playing an alarm sound if the obtained signal value is larger than a preset value.
The embodiment utilizes three kinds of monitoring modes that combine together of height monitoring, distance monitoring, nearly electric monitoring, provides multiple guarantee, prevents that construction machinery from bumping transmission line by mistake.
Example 2:
referring to fig. 3, the alarm system for preventing the construction machine from mistakenly colliding with the power transmission line provided by the embodiment is improved on the basis of the embodiment 1 as follows: the processing module 2 of the present embodiment includes a first processing unit 21 and a second processing unit 22, the first processing unit 21 is the processing module 2 (Arduino Nano motherboard, module U1 in the circuit diagram) of embodiment 1, and the second processing unit 22 is installed in the operating room of the construction machine; the operating room of the construction machine is also internally provided with a display module 5 which is used for displaying the height of the top end of the construction machine and is in signal connection with the second processing unit 22; the alarm module 3 is in signal connection with the second processing unit 22 and also comprises a light alarm capable of emitting alarm light; the transmission module 4 is used for signal connection between the first processing unit 21 and the second processing unit 22, and includes a first transmission unit 41 and a second transmission unit 42 wirelessly connected with each other, the first transmission unit 41 is the transmission module 4 (HC-05 bluetooth module, module U4 in the circuit diagram) in embodiment 1, and is in signal connection with the first processing unit 21; the second transmission unit 42 is installed in the operating room of the construction machine and is in signal connection with the second processing unit 22.
In this embodiment, the second processing unit 22 is implemented by an Arduino motherboard, and the specific model is Arduino Nano; the second transmission unit 42 is realized by a Bluetooth module, and the specific model is HC-05; the display module 5 adopts a dot matrix LED display screen, and the model of a display driving chip of the display module is MAX 7219; the light alarm adopts polychrome alarm lamp, polychrome alarm lamp comprises red, green and blue LED lamp pearl.
Referring to fig. 4, components installed at the top end of the construction machine are the same as those of embodiment 1, and components installed in the operating room of the construction machine are as follows: the module U6 is the second processing unit 22 (Arduino mainboard), the module U7 is the second transmission unit 42 (HC-05 Bluetooth module), the module U8 is the display module 5 (LED dot matrix display screen), the module U9 is the multicolor alarm lamp, and SP1 is the alarm speaker.
The VCC pin of the module U7 is connected with the +5V pin of the module U6, the UART-TX pin is connected with the D2 pin of the module U6, the UART-RX pin is connected with the D3 pin of the module U6 through a resistor R5, the UART-RX pin is grounded after passing through a resistor R5 and a resistor R6, and the GND pin is grounded.
The VCC pin of the module U8 is connected to the +5V pin of the module U6, the DIN pin is connected to the D10 pin of the module U6, the CS pin is connected to the D9 pin of the module U6, the CLK pin is connected to the D8 pin of the module U6, and the GND pin is grounded.
The pin R of the module U9 is connected with the pin D7 of the module U6 through a resistor R7, the pin G is connected with the pin D6 of the module U6 through a resistor R8, the pin B is connected with the pin D5 of the module U6 through a resistor R9, and the pin GND is grounded.
The positive pole of the alarm speaker SP1 is connected with the D4 pin of the module U6 through a resistor R4, and the negative pole is grounded.
For the power supply of the module U6, a power supply mode consistent with that of the first processing unit 21 may be adopted, or the VIN and GND pins of the 12V power connection module U6 in the operating room may be directly supplied, or the +5V and GND pins of the connection module U6 after the operating room power is converted into 5V may be supplied.
When the construction machine works, the first processing unit 21 at the top end of the construction machine sends the acquired height of the top end of the construction machine, the distance from the top end of the construction machine to a power frequency signal value to the second transmission unit 42 through the first transmission unit 41, the second transmission unit 42 sends data to the second processing unit 22, the second processing unit 22 displays the acquired height array on the display module 5, controls the multicolor alarm lamp to emit different colors such as green light, yellow light or red light according to the size of related data, and plays an alarm sound through the alarm loudspeaker if alarm is needed.
The display module 5 added in the embodiment can display the height of the top end of the construction machine, so that an operator can visually know the current height; the light alarm that this embodiment alarm module 3 increases can show the light of different colours, can instruct states such as safety, warning, danger, can make operating personnel have audio-visual understanding to the safe state of current operation.
Example 3:
referring to fig. 5, the alarm system for preventing the construction machine from mistakenly colliding with the power transmission line provided by the embodiment is improved on the basis of the embodiment 2 as follows: the height detecting unit 11 includes a first height detecting unit 111 and a second height detecting unit 112, the first height detecting unit 111 is the height detecting unit 11 (GY-63 air pressure sensor module, module U2 in the circuit diagram) of embodiments 1 and 2, and the second height detecting unit 112 is installed in the operating room of the construction machine and is in signal connection with the second processing unit 22.
Referring to fig. 6, components mounted on the top end of the construction machine are identical to those of embodiments 1 and 2, and a module U10 is added to components mounted in the operating room of the construction machine as compared to embodiment 2, and a module U10 is a second height detecting unit 112.
The VCC pin of the module U10 is connected to the 3V3 pin of the module U6, the SCL pin is connected to the A3 pin of the module U6, the SDA pin is connected to the A4 pin of the module U6, and the GND pin is grounded.
The elevation of the top end of the construction machine that can be detected by the first height detection unit 111 and the elevation of the operation room can be detected by the second height detection unit 112 in this embodiment, and then the actual height of the top end of the construction machine can be obtained by the difference between the elevation of the two. Compared with the embodiments 1 and 2, the embodiment does not need to acquire the initial height (the altitude of the ground) before construction, and is more convenient to use.
Example 4:
referring to fig. 7, the alarm system for preventing the construction machine from mistakenly colliding with the power transmission line provided by the embodiment is improved on the basis of the embodiment 3 as follows: the first transmission unit 41 and the second transmission unit 42 both adopt Bluetooth modules with the model number of HC-08; the Bluetooth module HC-08 adopts the Bluetooth 4.0 protocol and can support data transmission of 80 m.
The Bluetooth module HC-08 can realize data transmission at a longer distance, so that the invention can be suitable for various elevated construction machines.
Example 5:
the alarm system for preventing the construction machinery from mistakenly colliding the power transmission line provided by the embodiment is improved on the basis of the embodiment 4 as follows: the distance detection unit 12 of the present embodiment has three ultrasonic sensors, and the three ultrasonic sensors are arranged at equal angles, so that the ultrasonic emission angle of the distance detection unit 12 covers a wider range. The ECHO pin and the TRIG pin of the three ultrasonic sensors are connected one-to-one to the number pin (pin beginning with the letter D) of the first processing unit 21.
In the working of the embodiment, the program controls one ultrasonic sensor to perform distance detection, and after a time interval of about 50ms-100ms, controls the next ultrasonic sensor to perform distance detection, and the process is repeated. In the embodiment, only one ultrasonic sensor is driven to detect the distance at a time, and the next ultrasonic sensor is switched to after a certain time interval, so that the working mode can avoid mutual interference among the ultrasonic sensors.
In specific implementation, other numbers of ultrasonic sensors can be arranged according to actual conditions.
This embodiment sets up a plurality of ultrasonic sensor, can make apart from the detection unit cover wider detection angle, avoids unable detection and the distance between the transmission line because of the angle problem.
Example 6:
compared with embodiment 1, the present embodiment is implemented by using the following steps when monitoring the distance to the power transmission line by using the HC-SR04 ultrasonic sensor module:
s41, setting the state of the D4 pin of the module U1 as output and the state of the D5 pin as input;
s42, controlling the HC-SR04 ultrasonic sensor module to emit ultrasonic waves through a D4 pin of the module U1;
s43, detecting the time interval from the sending of the ultrasonic wave to the receiving of the reflected ultrasonic wave through the D5 pin of the module U1;
s44, calculating the distance from the power transmission line by using the acquired time interval and the temperature value acquired by the GY-63 air pressure sensor module;
and S45, continuously repeating the steps S42-S44 to obtain the distance from the power transmission line, and if the obtained distance is smaller than a preset value, playing an alarm sound.
In the embodiment, when the distance is calculated by using the sound velocity, the temperature value is introduced, so that the calculated distance is more accurate. The related calculation formula is a known formula and is not described in detail herein.
It should be noted that the ground connection in the circuit diagram of the present specification and the ground connection described in the embodiments both refer to connection to the negative electrode of the power supply.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and other modifications or equivalent substitutions made by the technical solutions of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.
Claims (9)
1. The utility model provides a prevent that construction machinery mistake from bumping transmission line's alarm system which characterized in that: the device comprises a detection module, a processing module, an alarm module and a transmission module;
the detection module is arranged at the top end of the construction machine and used for detecting the safety state of the top end of the construction machine;
the processing module is used for processing the data detected by the detection module;
the alarm module is arranged in an operation chamber of the construction machine and used for giving an alarm to an operator;
the transmission module is used for signal connection between the processing module and the alarm module;
the detection module comprises a height detection unit, a distance detection unit and a near-electricity detection unit;
the height detection unit is an air pressure sensor and is used for detecting the height of the detection module from the ground;
the distance detection unit is an ultrasonic sensor and is used for detecting the distance between the detection module and the power transmission line;
the near-electricity detection unit is used for detecting whether the detection module is close to the power transmission line.
2. The alarm system for preventing the construction machinery from mistakenly colliding the power transmission line according to claim 1, characterized in that: the processing module comprises a first processing unit arranged at the top end of the construction machine and a second processing unit arranged in the operating chamber of the construction machine; the transmission module is used for signal connection between the first processing unit and the second processing unit; the construction machine operating room is also internally provided with a display module for displaying the height of the top end of the construction machine; the display module and the alarm module are in signal connection with the second processing unit.
3. The alarm system for preventing the construction machinery from mistakenly colliding the power transmission line according to claim 2 is characterized in that: the height detection unit comprises a first height detection unit arranged at the top end of the construction machine and a second height detection unit arranged in the operating chamber of the construction machine; the second height detection unit is in signal connection with the second processing unit.
4. The alarm system for preventing the construction machinery from mistakenly colliding the power transmission line according to claim 1, characterized in that: the alarm module includes an audible alarm.
5. The alarm system for preventing the construction machinery from mistakenly colliding the power transmission line according to claim 4, characterized in that: the alarm module further comprises a light alarm.
6. The alarm system for preventing the construction machinery from mistakenly colliding the power transmission line according to claim 1, characterized in that: the transmission module utilizes a Bluetooth 4.0 protocol to transmit data.
7. The alarm system for preventing the construction machinery from mistakenly colliding the power transmission line according to claim 2 is characterized in that: the display module is an LED dot matrix display screen.
8. The alarm system for preventing the construction machinery from mistakenly colliding the power transmission line according to claim 4, characterized in that: the sound alarm is a loudspeaker.
9. The alarm system for preventing the construction machinery from mistakenly colliding the power transmission line according to claim 5, characterized in that: the light alarm is a multicolor alarm lamp.
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| CN114038156A (en) * | 2021-10-27 | 2022-02-11 | 广西电网有限责任公司防城港东兴供电局 | Split type vehicle near-electric induction early warning device |
| CN114446024A (en) * | 2022-01-29 | 2022-05-06 | 国家电网有限公司 | Early warning method for preventing external damage of power transmission line |
| CN115331387A (en) * | 2022-06-27 | 2022-11-11 | 国网山东省电力公司汶上县供电公司 | Electric shock prevention control method and system for operation vehicle |
| CN115825994A (en) * | 2022-11-22 | 2023-03-21 | 国网甘肃省电力公司天水供电公司 | Power transmission and transformation maintenance dynamic height limit management and control device and system based on Beidou system |
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