CN214670940U - Electric shock prevention device in rainy and foggy days - Google Patents

Abstract

The utility model discloses a rain and fog day protection against electric shock device, including power module, microcomputer module, humidity transducer module, human detection module, distance sensor module, audible alarm module, light alarm module, wireless transceiver module. The power circuit converts the input analog electric signal into a stable digital voltage signal, and when the humidity sensor detects rain and fog weather, the microcomputer module turns on the human body detection module, the distance sensor module, the sound alarm module and the like. Human body detection module detects the human body, and audible alarm module reports to the police, and light alarm module reports to the police, and distance sensor continuously detects human body to equipment distance, and the distance is more close, and the chimes of doom is more sharp-pointed, and light flicker frequency is higher, and wireless transceiver module transmits alarm information for the host computer. The utility model discloses the relatively poor environment of sight conditions such as rain fog day can in time send the early warning to effectively avoid the emergence of electric shock accident.

Description

Electric shock prevention device in rainy and foggy days

Technical Field

The utility model belongs to protection against electric shock device field especially relates to a rain and fog day protection against electric shock device.

Background

For various reasons, the electric power energy brings convenience to daily life of people and brings various dangers and even losses to the daily life, so that the electric power safety becomes a subject to be addressed by electric power related professional workers; the traditional electric power safety work is divided into two aspects, namely, the research of electric power accidents, the research of the mechanism, reason, composition, characteristics, rules and protective measures of the electric power accidents; and the second is to research and apply the methods of power monitoring, power inspection and power control to obtain necessary safety conditions. In recent years, due to the development of integrated circuits, some novel electric power safety products have come into operation, and the danger is eliminated in the bud stage mainly through a pre-warning mode.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rain and fog day protection against electric shock device to in time send out the police dispatch newspaper under the lower humid environment of visibility, greatly reduced the probability that the electric shock accident takes place.

In order to achieve the above object, the utility model discloses an electric shock prevention device who possesses alarming function, including power module, microcomputer module, humidity transducer module, human body detection module, distance sensor module, light alarm module, audible alarm module, wireless transceiver module, host computer.

The modules are divided into a plurality of modules which are electrically connected, and each module bears different functions and is mutually matched, so that the purpose of system design is realized.

The power module adopts AMS1117_3.3 as a main chip and is provided with a corresponding capacitor and a voltage stabilizing diode; the capacitor realizes the functions of filtering, bypassing, decoupling, energy storage and the like, and the voltage stabilizing diode is used for preventing static electricity and preventing the damage of high voltage to the circuit.

The microcomputer module adopts STM32F103 series chips as main chips, the highest working frequency of the series chips is 72MHz, the chips contain 2.0V-3.6V power supply and I/O pins, 2 12-bit analog-to-digital converters are arranged, and the conversion time is 1 us.

The humidity sensing module is a DHT11 temperature and humidity module, a VCC interface is connected with the anode of a system power supply, a GND interface is grounded, a DATA interface is connected with an IO port of the microcomputer module, the humidity detection range is 20% RH-90% RH, and the detection precision is 1% RH.

The human body detection module adopts HC-SR501, when a person enters the induction detection range, the high level is output, and when the person leaves the induction range, the high level is automatically delayed and closed, and the low level is output; the induction range is less than 120 degrees cone angle and within 7 meters.

The distance sensor adopts an HC-SR04 module, the sensor adopts an ultrasonic ranging mode, the high level duration corresponds to the detected distance, and the distance of the detected object can be obtained by recording the high level time.

The light alarm module adopts an LED lamp group, one end of the LED lamp is connected with high voltage, the other end of the LED lamp is connected with an I/O port of the microcomputer module, and the high voltage and the low voltage are output through the I/O port to realize the on-off of the LED and the flashing alarm function.

The sound alarm module is driven by an S8550 triode, a VCC interface is connected with the anode of a power supply, a GND interface is connected with GND, an I/O interface is connected with an I/O interface of the microcomputer module, and when the I/O interface inputs low level, the buzzer sounds to realize the sound alarm function.

The wireless transceiver module be NRF24L01,1 foot ground connection, 2 feet meet 3.3V voltage, transmitted power is 20dBm, maximum transmission rate is 2Mbps, maximum transmission distance is 1200 meters, under the condition that someone is close to in rainy and foggy days, can send preset alarm character to the host computer through the serial ports and show.

The upper computer is compiled by Labview software, and the characters sent by the lower computer are displayed.

Beneficial effect, the utility model provides an electric shock protection device who reports to police in advance, by humidity transducer perception weather variation, open monitoring and alarm system when rain and fog weather, the mode through wireless module commentaries on classics serial communication sends alarm information to the host computer, realizes the function of timely early warning under the relatively poor condition of rain and fog day visibility to effectively reduce the electric shock occurence of failure, simple structure, the consumption is lower, and the reliability is high.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a circuit diagram of the power module of the present invention.

FIG. 3 is a circuit diagram of a humidity sensor module.

Fig. 4 is an external schematic view of the human body detection module.

Fig. 5 is a circuit diagram of a distance sensor module.

Fig. 6 is a circuit diagram of a light alarm module.

Fig. 7 is a circuit diagram of an audible alarm module.

Fig. 8 is a circuit diagram of a wireless transceiver module.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings.

The utility model discloses mainly include 8 main circuit module and a host computer of writing by Labview software, as shown in fig. 1, power module, microcomputer module, humidity transducer, human detection module, distance sensor module, light alarm module, audible alarm module, wireless transceiver module become the host computer wholly through electric connection, and wireless transceiver in time sends early warning information for the host computer demonstration.

Please refer to fig. 2 to 8, the embodiment of the present invention is as follows, the utility model uses a regulated power supply to supply power to a microcomputer module, under the rain and fog weather condition, the air humidity increases, a humidity sensor transmits the humidity to the microcomputer module, the microcomputer module opens a human body detection sensor module, a distance sensor module, a light alarm module, a sound alarm module, and a wireless transceiver module, when the human body detection module senses the approach of a person, the light alarm starts to flash, the sound alarm module starts to sound, the distance sensor continuously works, when the person continues to approach, the light flashing frequency increases, the sound alarm module alarms more sharply; meanwhile, the wireless transceiving module sends the early warning characters in the microcomputer module to the upper computer wireless module through the lower computer wireless module, and the upper computer wireless module sends the characters to the Labview for display in a serial port mode.

Further, power module adopt AMS1117_3.3, its function is 3.3V with external voltage source's voltage transformation, for STM32F103 power supply, guarantee entire system's normal work.

Further, computer module adopt STM32103C8T6 chip, this chip has 64K flash memory program memory and 20 kbyte SRAM, 2 12 bit analog-to-digital converters, 37 quick IO mouths, can with DHT11 data port, human detection HC-SR501 data port is connected, also can export high low level signal and give light alarm module and sound alarm module to send early warning signal to host computer interface through NRF24L 01.

Further, humidity transducer module adopt DHT11 temperature and humidity sensor, this sensor includes that a resistance-type feels wet component, the sensor calibrates in the humidity check-up room before the use, 1 foot connects the power supply, 2 feet are the data foot, adopt the transmission of single bus data format, 3 feet are unsettled, 4 feet ground connection.

Furthermore, the human body detection module of the utility model adopts HC-SR 501; the chip has two triggering modes, one is a non-repeatable triggering mode, and the other is a repeatable triggering mode; when a person enters the sensing range, the person outputs high level, the high level is sensed by the microcomputer module through the I/O port, and the microcomputer module outputs a voltage signal through the pin of the microcomputer module, so that the functions of light and sound alarm can be realized.

Further, the distance sensor module adopt HC-SR04, at first the microcomputer module sends the high level pulse of at least 10us to the distance sensor module transmission mouth, the distance sensor module transmission mouth will send 8 40 KHz's square wave, wait, it begins timing to catch opening the timer when accepting mouthful rising edge signal to catch the distance sensor module, wait again and catch the falling edge that the distance sensor module accepted mouthful, when catching the falling edge, read out the time of timer, can calculate the distance according to formula distance ═ high level time 340/2.

Further, light alarm module be 3 LED, every LED connects a 10K's protective resistor, a termination 3.3V voltage, another termination to computer interface's 84 mouths, when 84(PD3) mouth output is low-voltage, the diode switches on luminous, when the output is high-voltage, emitting diode is by extinguishing, through the high low level that changes 84 mouths, realizes the function of scintillation warning.

Furthermore, the sound alarm module of the utility model is a buzzer controlled by 8550 PNP, the 8550 emitting electrode is connected with 3.3V voltage, the collecting electrode is connected with a horn, the other end of the horn is grounded, the base electrode of the PNP type is connected with the PE2 port of the microcomputer module, when the PE2 outputs high level, the emitting junction of the triode is reversely biased, the triode is stopped and does not sound, when the PE2 outputs low level, the emitting junction of the triode is positively biased, and the triode is switched on and sounds; the alarm function can be realized by changing the high and low level of the PE2 port.

Further, wireless transceiver module adopt NRF24L01 chip, 1 foot ground connection, 2 feet connect 3.3V power, 3 feet are RX or TX selection, select to TX in the next computer, 4 feet are SPI chip selection signal feet, 5 feet are SPI clock feet, 6 feet are for following SPI data input foot, 7 feet are for following SPI data output foot, IRQ is digital output foot.

Further, the host computer be Labview, compile host computer interface through this software, namely user operation interface, show including personnel break-in.

The utility model discloses can greatly reduce the danger of electrocuteeing under the lower condition of visibility such as rain and fog, and have the effect of timely feedback.

In addition, the embodiments described in this specification are only some embodiments of the present invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Claims (8)

1. The utility model provides a rain and fog day protection against electric shock device which characterized in that, includes power module, microcomputer module, humidity transducer module, human detection module, distance sensor module, light alarm module, audible alarm module, wireless transceiver module, host computer, microcomputer module and power module, humidity transducer module, human detection module, distance sensor module, light alarm module, audible alarm module electric connection, microcomputer module and host computer pass through wireless transceiver module and are connected.

2. The electric shock prevention device for the rainy and foggy days as claimed in claim 1, wherein the power module is an AMS1117_3.3 chip and provides a stable 3.3V direct current voltage for the system.

3. The electric shock prevention device in the rainy and foggy days as claimed in claim 1, wherein the humidity sensing module is a DHT11 temperature and humidity sensor for providing environmental humidity data for the system.

4. The electric shock protection device in rainy and foggy days as claimed in claim 1, wherein the human body detection module is HC-SR501 for detecting whether a person approaches the system.

5. The electric shock protection device in rainy and foggy days as claimed in claim 1, wherein the distance sensor is HC-SR04 module for detecting the distance between human body and system for system.

6. The electric shock prevention device in the rainy and foggy days as claimed in claim 1, wherein the light alarm module is an LED light group, and the light alarm module reminds nearby people of the existence of a strong power supply in a flashing manner.

7. The electric shock protection device in rainy and foggy days as claimed in claim 1, wherein the sound alarm module is a level-triggered active buzzer module, which sends out sound to remind nearby people of the existence of strong power supply.

8. The electric shock prevention device in the rainy and foggy days as claimed in claim 1, wherein the wireless transceiver module is an NRF24L01 module, and when someone approaches in the rainy and foggy days, alarm information is sent to an upper computer in time so that a user can know the alarm information.

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