CN203384947U - Wireless gas detection pre-warning mining lamp - Google Patents
Wireless gas detection pre-warning mining lamp Download PDFInfo
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- CN203384947U CN203384947U CN201320419667.6U CN201320419667U CN203384947U CN 203384947 U CN203384947 U CN 203384947U CN 201320419667 U CN201320419667 U CN 201320419667U CN 203384947 U CN203384947 U CN 203384947U
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Abstract
The utility model relates to a wireless gas detection pre-warning mining lamp, and belongs to the technical field of coal mine safety equipment. According to the wireless gas detection pre-warning mining lamp, a gas measurement circuit and a communication line of a ZigBee technology are mounted in the mining lamp; and the mining lamp comprises LED indication, sound alarm, gas detection, a touch switch, power supply management, LED illumination lamp, power amplification and a Zigbee wireless radio frequency transceiver, wherein the LED indication, the sound alarm, the gas detection, the touch switch, the power supply management, the LED illumination lamp, the power amplification and the Zigbee wireless radio frequency transceiver are mounted on the mining lamp; the LED indication, the gas detection and the sound alarm are connected with the Zigbee wireless radio frequency transceiver through an I/O (input/output) interface; the touch switch and the power supply management are connected with the Zigbee wireless radio frequency transceiver; the power amplification is connected with a radio frequency transmitting and receiving module of the Zigbee wireless radio frequency transceiver; and the LED illumination lamp is connected with the power supply management. A zigBee technology is adopted, the energy consumption of a product is less, the weight is lighter, the price is low, and the wireless gas detection pre-warning mining lamp is easier to popularize.
Description
Technical field
The utility model
wireless gas detects the early warning mine lamprelate to a kind of ZigBee technology that utilizes and realize two-way communication and location, there is gas and detect and accurate pre-alerting ability, can, for the device of night watching, belong to the safety of coal mines equipment technical field.
Background technology
Coal-bed gas in process of coal mining is one of key factor affected mine safety.Methane Concentration Measurement and Risk-warning are the control gas accidents, realize the important technical of Safety of Coal Mine Production.The location of coal mine down-hole personnel, very important for safety in production.In early days, fixed coal mine gas measurement mechanism for Coal Exploitation, need a large amount of gas checkout equipments, and installation site also is restricted, and it is very inconvenient in the scope of operation, to install.Detect gas density with mobile gas detector, operate more flexible, but, because the colliery scale of using equipment is generally all larger, distance is distant, security staff's labour intensity is large, can't guarantee the real-time detection of tunnel, mining area gas density.
The Chinese patent that notification number is CN2574446 has proposed a kind of Multifunctional safety helmet, and it installs gas detector on marginal ridge, at the gas density alarm that exceeds standard.
The Chinese patent that notification number is CN2614480 and CN201398506 improves in design.
The Chinese patent that notification number is CN2798644 has increased wireless calling function.
The advantage of the gas safety helmet is that the instantaneity of gas surveying is better, can reduce security staff's labour intensity.Shortcoming is to measure to lack locating information, because the coal mine gas prewarning threshold value is relevant with position, lacks the easy false alarm of reference of positional information.In addition, the early stage patent all do not consider the gas early warning will with the combination of mining area safety information system.Also there is the problem of more accurate difficulty in crash helmet, and these are the popularization of influence technique all.
The Chinese patent that notification number is CN102228319 has been introduced wireless communication technology, proposes to adopt Bluetooth technology that the environmental information in mining area is real-time transmitted to Surveillance center, and the signal strength signal intensity RSSI deixis carried by radio-frequency module realizes the location of crash helmet.This Patent design has obvious progress, but still has some shortcomings: at first, the helmet price that proposes Multi-sensor Fusion in patent is a problem; Secondly, the many power consumptions of helmet function are just large, use inconvenient; Propose in this patent to use the Bluetooth technology transmission information, utilize the RFID technology to carry out identification, two kinds of technology stacks can make cost compare high.RFID and Bluetooth technology, transmission range is all closer, and Bluetooth technology is not found good self-organization of network solution temporarily, therefore, should find better information transmission scheme.
The Chinese patent that notification number is CN2839563 has been announced a kind of coal mine gas forecast and personnel location system.Proposed to build colliery Real-Time Monitoring net by RS232, optical fiber, CAN BUS, mentioned between base station and main website and adopted radio communication, also proposed the imagination of transformation crash helmet as communication base station.Do not adopt which kind of wireless communication technology but do not clearly state in patent, do not provide the remodeling method as the crash helmet of base station yet.Also mentioned the conception of setting up safety means ID in patent, the flow process of personnel positioning has been described, and how has realized personnel positioning, but the shortage system is described.
The Chinese patent that notification number is CN201690442U has proposed to install the design of gas detection and sound and light alarm on crash helmet, and coal mine gas information is by wireless transmission.This patent has proposed, to each gas mine lamp, MAC Address is set, by receiving the strong and weak location of realizing of plural fixed station wireless signal.Do not illustrate in patent between mine lamp and fix information receiving station and adopt which kind of Radio Transmission Technology, do not introduce the structure of the system of mining area safety network yet.
Consider and adopt fixedly gas surveying Equipment Inspection gas in coal mine roadway, have the deficiency of number of devices and inconvenient problem is installed; With mobile gas checkout equipment, want the special messenger to be responsible for, and manually can't complete real-time detection; Detect gas density with the general gas early warning helmet, for want of, there is the puzzlement of wrong report in positional information; The gas helmet because quantity large more accurate be also very difficult thing; Adopt general wireless solution, the adverse circumstances in colliery and the cost of popularization need to consider.
Summary of the invention
The purpose of this utility model is to avoid weak point of the prior art, and provide a kind of reduction dust to invade and harass, increase the service life of sensor, improve the security protection ability of antenna, utilize ZigBee technology to realize two-way communication and coal mine gas detection and early warning and location
wireless gas detects the early warning mine lamp.
Of the present utility model
wireless gas detects the early warning mine lampthe communication line of gas surveying circuit and ZigBee technology is installed in mine lamp.
Of the present utility model
wireless gas detects the early warning mine lampthe communication line of gas surveying circuit and cheap ZigBee technology is installed in the battery case of mine lamp, firedamp sensor is arranged on to the side of battery case, reducing dust invades and harasses, increase the service life of sensor, the wireless receiving and dispatching antenna is vertically mounted in battery case, improves the security protection ability of antenna.
The utility model
wireless gas detects the early warning mine lampcomprise LED indication, audible alarm, gas detection, soft-touch control, power management, LED illuminating lamp, power amplification, Zigbee rf receiver and transmitter,
on mine lamp, installlED indication, audible alarm, gas detection, soft-touch control, power management, LED illuminating lamp, power amplification, Zigbee rf receiver and transmitter, the LED indication detects with gas, audible alarm is connected the Zigbee rf receiver and transmitter by the I/O interface, soft-touch control, power management connect the Zigbee rf receiver and transmitter, power amplification connects the RF receiving and transmission module of Zigbee rf receiver and transmitter, and the LED illuminating lamp connects power management.
Red, yellow and green three kinds of colors that LED is designated as, the LED Light-Emitting Diode of employing superbright, red danger, yellow expression warning, the green expression safety of meaning.
Audible alarm comprises that piezo buzzer, transistor 9550 drive, by transistor 9550, drives, and the piezo buzzer of low-voltage, vibration frequency is 2300Hz.
Gas detects and comprises firedamp sensor, amplifying circuit, and firedamp sensor is connected with amplifying circuit AD623, and the amplifying circuit of firedamp sensor adopts the AD623 that can be used for low-voltage, amplifies the gas voltage signal and gathers for AD.Firedamp sensor selects catalysis element MJC4/3.0L as firedamp sensor, this sensor fast response time, repeatability be stable with selective good, element function, reliably, there is stronger anti-H
2the advantages such as S is poisoning.
Soft-touch control adopts the single channel capacitor induction type to touch IC, and operating voltage: 2.4V ~ 5.5V encapsulation: 1.5uA, output signal is Transistor-Transistor Logic level.
Power management comprises DC-DC translation circuit, adopts DC-DC translation circuit SP6201, by 3.7 volts of dc source voltage transformations, is 3.3 volts of Voltage-outputs.
Power amplification adopts the CC2591 chip, improves the intensity transmitted.
The Zigbee rf receiver and transmitter comprises location tracking engine, ADC module, 8051 microcontrollers, RF receiving and transmission module, temperature sensor, 8051 microcontrollers connect RF receiving and transmission module, 8051 microcontrollers connect temperature sensor, 8051 microcontrollers connect the location tracking engine, and 8051 microcontrollers connect the ADC module.
The Zigbee rf receiver and transmitter adopts the CC2431 chip of TI company, this chip includes temperature sensor, 8051 microcontrollers, location tracking engine and ADC module and RF receiving and transmission module, and the RF receiving and transmission module of CC2431 chip improves the intensity transmitted by the CC2591 chip.
The utility model
wireless gas detects the early warning mine lampthe wiring board of the communication line of gas surveying circuit and cheap ZigBee technology is arranged on the position at the top of battery case, the sheet metal sensing environment temperature of the good heat conduction of being close to CC2431 is installed in battery case surfaces, the LED light of LED indication is installed in battery case surfaces, the red, yellow, and green LED light is installed, the grading forewarning system indication.
In battery case surfaces, soft-touch control is installed, is controlled mine lamp power switch, brightness adjustment, gas surveying demarcation and distress call.
Audible alarm is installed on battery case, audible alarm when the measurement gas density exceeds standard (controlled by security centre reports to the police).
Gas is installed on battery case and is detected, audible alarm when the measurement gas density exceeds standard.
The radio-frequency antenna of 2.4GHz is installed on battery case.
Place the LiMn2O4 ion battery of 3.7 volts of 6Ah in battery case.
The utility model
wireless gas detects the early warning mine lampthe firedamp sensor that gas detects is connected with amplifying circuit AD623, and the voltage signal that the gas density of amplification is relevant outputs to the I/O interface P0.4 of the CC2431 chip of Zigbee rf receiver and transmitter, and the settling signal collection calculates the gas density of environment.8051 microcontrollers in the CC2431 chip compare the concentration of calculating and the concentration threshold value in internal memory, when concentration value exceeds threshold value, the signal of the 2300Hz reported to the police by I/O interface P1.5 output sound, amplify through triode 8550, by transistor 9550, drive the piezo buzzer of low-voltage to report to the police.The CC2431 chip strengthens wireless signal transmission power by power amplification circuit CC2591.Three LED lights are connected with the I/O interface P1.2-P1.5 of CC2431 chip, during low level output, and lightening LED lamp.
wireless gas detects the early warning mine lampit is the part of ZigBee self-organizing network under coal mine.In the coal mine roadway used at the utility model, (reference mode and the utility model are similar to fill a reference mode every the 300-500 meter ampere, as installed, adopt the CC2531 chip the reference mode distance can extend), the utility model serves as location node, builds the ZigBee self-organizing network together with reference mode.The mining switch of the ZigBee reference mode equipment by end is connected with router, completes the information interaction at coal mine roadway information and coal mine safety management center.
Reference mode is a static node that is positioned at known location, this node knows the position of self, can preset, and notify other reference modes by its positional information by sending packet, then by switch and router, locating information is sent to the security management center of coal mine ground.As location node
wireless gas detects the early warning mine lampin the reference mode zone, move, receive data packet signal from reference mode, obtain reference mode position coordinates and corresponding RSSI value, engine of positioning is according to the RSSI value of input, calculate the propagation loss of signal, utilize theory and empirical model that loss is converted into to distance, adopt triangulation location to determine node location to be positioned.
The MAC Address of the wearer of this device and device is bound, the coal mine safety management center can be by receiving the locating information of reference mode and this device, instant understanding staff's positional information and the environmental informations such as the gas density of the mine laneway in corresponding place, temperature, implement scheduling and safety management.
The role of the utility model in ZigBee-network is end node, is again routing node, between device, can be connected in series, and its transmission of wireless signals is more farther than the distance of same category of device transmission.
wireless gas detects the early warning mine lampscaling method be to be placed near proven gas mine lamp, press gas and demarcate the demarcation that key completes the gas mine lamp.The general scaling method of gas surveying equipment is to adopt the Standard Gases sample more accurate, and common every ten days once more accurate, and the quantity of the gas safety helmet is many, usually more accurate job very difficult.The more accurate method that this device adopts is, first by the gas density of each gas early warning mine lamp the corresponding MAC Address of voltage curve deposit in the database of security management center, more punctual, by the gas density/voltage curve of calibrated device as a reference, gas density/the voltage measuring value of device of calibration of take is reference, the gas surveying device to be calibrated by the curve fitting technique correction.If find gas density that firedamp sensor to be measured surveys and proven device measuring value error large (as > 5%), send the buzzing alarm sound, abandon calibration.
wireless gas detects the early warning mine lampadopt the interior temperature sensor thermometric of CC2431 chip of Zigbee rf receiver and transmitter 8.The CC2431 chip has 1 analog temperature sensor and 1 8～14 s' analog-to-digital conversion ADC, and the digital quantity of precision setting output is the 8-14 position as required, and reference voltage can be set to external voltage also can adopt inner 1.25V reference voltage.The input of this device ADC is set to analog temperature sensor in sheet, obtain the output valve of the digital quantity of corresponding temperature, the lower formula 1 of recycling (inner 1.25V voltage for reference voltage, bit is the digital output figure place, Output is the output digital quantity) can obtain temperature value:
What consider that temperature sensor detects in the CC2431 chip is chip temperature, measures ambient temperature, will be subject to the impact of many extraneous factors.Under equivalent environment, the digital quantity of each module output is differentiated, process and just can apply through error compensation.This gas mine lamp is close to the CC2431 chip on wiring board on the metal window of good heat conduction of battery case panel, improves the susceptibility of temperature sensor to environment temperature.
The utility model
wireless gas detects the early warning mine lampbeneficial effect be: can reflect in real time that the gas density of coal mine roadway regional and ambient temperature situations (as install additional: CO, H
2s, O
2sensor, can obtain more environmental information), when finding danger, utilize ZigBee wireless information transfer technology can allow the aboveground relevant personnel in down-hole obtain in time early warning information, thereby realize safety management.By location technology, can make the network security management center obtain in time the positional information of staff in coal mine roadway, the personnel while being convenient to job management and mine disaster search and rescue.This device location and management combination, can be used for managing colliery peace pipe personnel's the night watching of going into the well.Positional information owing to can obtaining the gas detection, can realize the accurate early warning of gas.This device adopts remote calibration, can solve preferably the difficult problem of the many calibrations of gas helmet quantity.Device has adopted ZigBee technology, and the energy consumption of product is less, weight is light, low price, than being easier to, promotes.
The accompanying drawing explanation
Accompanying drawing 1:ZigBee wireless gas early warning night watching mine lamp block diagram.
Accompanying drawing 2:ZigBee wireless gas early warning night watching mining lamp structure figure.
Accompanying drawing 3: the ZigBee-network schematic diagram of coal mine roadway.
Accompanying drawing 4:ZigBee wireless gas early warning night watching mine lamp circuit theory diagrams.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Shown in accompanying drawing 1, the utility model
wireless gas detects the early warning mine lampcomprise: comprise that LED indication 1, audible alarm 2, gas detection 3, soft-touch control 4, power management 5, LED illuminating lamp 6, power amplification 7, Zigbee rf receiver and transmitter 8 form,
on mine lamp, installlED indication 1, audible alarm 2, gas detection 3, soft-touch control 4, power management 5, LED illuminating lamp 6, power amplification 7, Zigbee rf receiver and transmitter 8, LED indication 1 is connected Zigbee rf receiver and transmitter 8 with gas detection 3, audible alarm 2 by the I/O interface, soft-touch control 4, power management 5 connect Zigbee rf receiver and transmitter 8, power amplification 7 connects the RF receiving and transmission module of Zigbee rf receiver and transmitter, and LED illuminating lamp 6 connects power management 5.The communication line of gas surveying circuit and cheap ZigBee technology is installed in the battery case of mine lamp, firedamp sensor is arranged on to the side of battery case, reducing dust invades and harasses, increase the service life of sensor, the wireless receiving and dispatching antenna is vertically mounted in battery case, improves the security protection ability of antenna.LED indication 1 is divided into red, yellow and green three kinds of colors, adopts the LED Light-Emitting Diode of superbright, and redness means dangerous, and yellow the expression warned, the green safety that means.Audible alarm 2 comprises that piezo buzzer, transistor 9550 drive, by transistor 9550, drives, and the piezo buzzer of low-voltage, vibration frequency is 2300Hz.Gas detects 3 and comprises firedamp sensor, amplifying circuit, and firedamp sensor is connected with amplifying circuit AD623, and the amplifying circuit of firedamp sensor adopts the AD623 that can be used for low-voltage, amplifies the gas voltage signal and gathers for AD.Firedamp sensor selects catalysis element MJC4/3.0L as firedamp sensor, this sensor fast response time, repeatability be stable with selective good, element function, reliably, there is stronger anti-H
2the advantages such as S is poisoning.Soft-touch control 4 adopts the single channel capacitor induction type to touch IC, and operating voltage: 2.4V ~ 5.5V encapsulation: 1.5uA, output signal is Transistor-Transistor Logic level.Power management 5 comprises DC-DC translation circuit, adopts DC-DC translation circuit SP6201, by 3.7 volts of dc source voltage transformations, is 3.3 volts of Voltage-outputs.Power amplification 7 adopts the CC2591 chip, improves the intensity transmitted.Zigbee rf receiver and transmitter 8 comprises location tracking engine, ADC module, 8051 microcontrollers, RF receiving and transmission module, temperature sensor, 8051 microcontrollers connect RF receiving and transmission module, 8051 microcontrollers connect temperature sensor, 8051 microcontrollers connect the location tracking engine, and 8051 microcontrollers connect the ADC module.Zigbee rf receiver and transmitter 8 adopts the CC2431 chip of TI company, this chip includes temperature sensor, 8051 microcontrollers, location tracking engine and ADC module and RF receiving and transmission module, and the RF receiving and transmission module of CC2431 chip improves the intensity transmitted by the CC2591 chip.
Shown in accompanying drawing 2, the utility model
wireless gas detects the early warning mine lampgas surveying circuit and the wiring board of the communication line of the cheap ZigBee technology 12 position, top that is arranged on battery case, the sheet metal 11 sensing environment temperatures of the good heat conduction of being close to CC2431 are installed in battery case surfaces, the LED light of LED indication 1 is installed in battery case surfaces, the red, yellow, and green LED light is installed, the grading forewarning system indication.In battery case surfaces, soft-touch control 4 is installed, is controlled mine lamp power switch, brightness adjustment, gas surveying demarcation and distress call.2 audible alarms 2 are installed on battery case, audible alarm when the measurement gas density exceeds standard (controlled by security centre reports to the police).Gas is installed on battery case and is detected 3, audible alarm when the measurement gas density exceeds standard.The radio-frequency antenna 10 of 2.4GHz is installed on battery case.Place the LiMn2O4 ion battery 9 of 3.7 volts of 6Ah in battery case.
In accompanying drawing 3, described
wireless gas detects the early warning mine lampthe residing ZigBee information transmission system is comprised of reference mode, location node, mining router and switch, the utility model serves as location node, build the ZigBee self-organizing network together with reference mode, the mining switch of the ZigBee reference mode equipment by end is connected with router, complete the information interaction at coal mine roadway information and coal mine safety management center, wherein
wireless gas detects the early warning mine lampbeing location node, is again end node, or routing node,
wireless gas detects the early warning mine lampbe the part of ZigBee self-organizing network under coal mine, can be connected in series between device, its transmission of wireless signals is more farther than the distance of same category of device transmission.Reference mode in figure is routing node, the end reference mode dispose Ethernet interface can with switch, be connected.In the coal mine roadway used at the utility model, (reference mode and the utility model are similar to fill a reference mode every the 300-500 meter ampere, as installed, adopt the CC2531 chip the reference mode distance can extend), the utility model can be by receiving the information of reference mode, detection signal strength, determine the position of own relative and reference mode.This device can determine one's identity according to 32 ID addresses.Can interconnect between device, increase the transmission range of network part.Accompanying drawing 3 has been described the framework of coal mine lower network.The tunnel working face adopts ZigBee technology, by reference mode, location node, forms self-organization network; Backbone network is built by mining router and switch.This device is as the location node of ZigBee, and it is end node, is again routing node, can the locating information of this device and the gas density, the temperature data that detect be transferred to coal mine safety management center, ground by reference to node.Reference mode is a static node that is positioned at known location, this node knows the position of self, can preset, and notify other reference modes by its positional information by sending packet, then by switch and router, locating information is sent to the security management center of coal mine ground.As location node
wireless gas detects the early warning mine lampin the reference mode zone, move, receive data packet signal from reference mode, obtain reference mode position coordinates and corresponding RSSI value, engine of positioning is according to the RSSI value of input, calculate the propagation loss of signal, utilize theory and empirical model that loss is converted into to distance, adopt triangulation location to determine node location to be positioned.Will
wireless gas detects the early warning mine lampthe wearer with
wireless gas detects the early warning mine lampmAC Address binding, the coal mine safety management center can by receive reference mode with
wireless gas detects the early warning mine lamplocating information, immediately understand the environmental informations such as gas density, temperature of staff's positional information and the mine laneway in corresponding place, implement scheduling and safety management.
Accompanying drawing 4 has been described
wireless gas detects the early warning mine lampcircuit diagram.The utility model
wireless gas detects the early warning mine lampcomprise that LED indication, audible alarm, gas detection, soft-touch control, power management, LED illuminating lamp, power amplification, Zigbee rf receiver and transmitter form, the LED indication is divided into red, yellow and green three kinds of colors, adopt the LED Light-Emitting Diode of superbright, red expression is dangerous, yellow warning, the green safety that means of meaning.Audible alarm comprises that piezo buzzer, transistor 9550 drive, by transistor 9550, drives, and the piezo buzzer of low-voltage, vibration frequency is 2300Hz.Gas detects and comprises firedamp sensor, amplifying circuit, and firedamp sensor is connected with amplifying circuit AD623, amplifies the gas voltage signal and gathers for AD.Firedamp sensor selects catalysis element MJC4/3.0L as firedamp sensor, this sensor fast response time, repeatability be stable with selective good, element function, reliably, there is stronger anti-H
2the advantages such as S is poisoning.Soft-touch control adopts the single channel capacitor induction type to touch IC, and operating voltage: 2.4V ~ 5.5V encapsulation: 1.5uA, output signal is Transistor-Transistor Logic level.Power management comprises DC-DC translation circuit, adopts DC-DC translation circuit SP6201, by 3.7 volts of dc source voltage transformations, is 3.3 volts of Voltage-outputs.Power amplification adopts the CC2591 chip, improves the intensity transmitted.The Zigbee rf receiver and transmitter comprises location tracking engine, ADC module, 8051 microcontrollers, RF receiving and transmission module, temperature sensor, 8051 microcontrollers connect RF receiving and transmission module, 8051 microcontrollers connect temperature sensor, 8051 microcontrollers connect the location tracking engine, and 8051 microcontrollers connect the ADC module.The Zigbee rf receiver and transmitter adopts the CC2431 chip of TI company, this chip includes temperature sensor, 8051 microcontrollers, location tracking engine and ADC module and RF receiving and transmission module, and the RF receiving and transmission module of CC2431 chip improves the intensity transmitted by the CC2591 chip.
The utility model
wireless gas detects the early warning mine lampthe firedamp sensor that gas detects is connected with amplifying circuit AD623, and the voltage signal that the gas density of amplification is relevant outputs to the I/O interface P0.4 of the CC2431 chip of Zigbee rf receiver and transmitter, and the settling signal collection calculates the gas density of environment.8051 microcontrollers in the CC2431 chip compare the concentration of calculating and the concentration threshold value in internal memory, when concentration value exceeds threshold value, the signal of the 2300Hz reported to the police by I/O interface P1.5 output sound, amplify through triode 8550, by transistor 9550, drive the piezo buzzer of low-voltage to report to the police.The CC2431 chip strengthens wireless signal transmission power by power amplification circuit CC2591.Three LED lights are connected with the I/O interface P1.2-P1.5 of CC2431 chip, during low level output, and lightening LED lamp.
wireless gas detects the early warning mine lampcircuit is comprised of wlan transceiving integrated circuit CC2431 chip, power amplification circuit CC2591, amplifier AD623 and sensor MJC4/3.0.Three LED lights are connected with the I/O interface P1.2-P1.5 of CC2431 chip, during low level output, and lightening LED lamp.Firedamp sensor MJC4/3.0 is connected with amplifying circuit AD623, and the voltage signal that the gas density of amplification is relevant outputs to the I/O interface P0.4 of CC2431 chip, and the settling signal collection calculates the gas density of environment.8051 microcontrollers in the CC2431 chip compare the concentration of calculating and the concentration threshold value in internal memory, when concentration value exceeds threshold value, by the signal of I/O interface P1.5 output 2300Hz, through triode 8550, amplify the driving buzzer warning.The CC2431 chip strengthens wireless signal transmission power by wireless power amplifying circuit CC2591.Be provided with power switch, the more accurate key of gas, distress call key and light key in circuit.Four keys are connected with the P0.0-P0.3 pin of CC2431 chip respectively.The high level of the pin of four keys output at ordinary times, when button is pressed, pin becomes low level.
Claims (7)
1. one kind
wireless gas detects the early warning mine lamp, it is characterized in thatcomprise LED indication, audible alarm, gas detection, soft-touch control, power management, LED illuminating lamp, power amplification, Zigbee rf receiver and transmitter,
on mine lamp, installlED indication, audible alarm, gas detection, soft-touch control, power management, LED illuminating lamp, power amplification, Zigbee rf receiver and transmitter, the LED indication detects with gas, audible alarm is connected the Zigbee rf receiver and transmitter by the I/O interface, soft-touch control, power management connect the Zigbee rf receiver and transmitter, power amplification connects the RF receiving and transmission module of Zigbee rf receiver and transmitter, and the LED illuminating lamp connects power management.
2. according to claim 1
wireless gas detects the early warning mine lamp, it is characterized in that audible alarm comprises that piezo buzzer, transistor 9550 drive.
3. according to claim 1
wireless gas detects the early warning mine lamp, it is characterized in that the gas detection comprises firedamp sensor, amplifying circuit, firedamp sensor is connected with amplifying circuit AD623.
4. according to claim 1
wireless gas detects the early warning mine lamp, it is characterized in that soft-touch control adopts the single channel capacitor induction type to touch IC, power management comprises DC-DC translation circuit, adopts DC-DC translation circuit SP6201, by 3.7 volts of dc source voltage transformations, is 3.3 volts of Voltage-outputs.
5. according to claim 1
wireless gas detects the early warning mine lamp, it is characterized in that power amplification adopts the CC2591 chip.
6. according to claim 1
wireless gas detects the early warning mine lampit is characterized in that the Zigbee rf receiver and transmitter comprises location tracking engine, ADC module, 8051 microcontrollers, RF receiving and transmission module, temperature sensor, 8051 microcontrollers connect RF receiving and transmission module, 8051 microcontrollers connect temperature sensor, 8051 microcontrollers connect the location tracking engine, and 8051 microcontrollers connect the ADC module.
7. according to claim 1
wireless gas detects the early warning mine lamp, it is characterized in that the firedamp sensor that gas detects is connected with amplifying circuit AD623, the relevant voltage signal of gas density amplified outputs to the I/O interface P0.4 of the CC2431 chip of Zigbee rf receiver and transmitter, settling signal gathers, calculate the gas density of environment, 8051 microcontrollers in the CC2431 chip compare the concentration of calculating and the concentration threshold value in internal memory, when concentration value exceeds threshold value, the signal of the 2300Hz reported to the police by I/O interface P1.5 output sound, through triode 8550, amplify, by transistor 9550, drive the piezo buzzer of low-voltage to report to the police, the CC2431 chip strengthens wireless signal transmission power by power amplification circuit CC2591, three LED lights are connected with the I/O interface P1.2-P1.5 of CC2431 chip.
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| CN201320419667.6U CN203384947U (en) | 2013-07-16 | 2013-07-16 | Wireless gas detection pre-warning mining lamp |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103354013A (en) * | 2013-07-16 | 2013-10-16 | 广州番禺职业技术学院 | Early warning method of wireless gas detection and mine lamp thereof |
| CN104832214A (en) * | 2014-03-09 | 2015-08-12 | 胡兴志 | Novel passive coal mine underground environment safety monitoring system |
| CN105298541A (en) * | 2015-10-22 | 2016-02-03 | 无锡市恒达矿山机械有限公司 | Alarming device used in mine |
| CN106703890A (en) * | 2017-03-20 | 2017-05-24 | 杨雪锋 | Sound-light alarm device for mining industry |
| CN113284315A (en) * | 2021-04-06 | 2021-08-20 | 温州职业技术学院 | Miner safety monitoring system, calibration method and false alarm elimination method |
-
2013
- 2013-07-16 CN CN201320419667.6U patent/CN203384947U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103354013A (en) * | 2013-07-16 | 2013-10-16 | 广州番禺职业技术学院 | Early warning method of wireless gas detection and mine lamp thereof |
| CN104832214A (en) * | 2014-03-09 | 2015-08-12 | 胡兴志 | Novel passive coal mine underground environment safety monitoring system |
| CN105298541A (en) * | 2015-10-22 | 2016-02-03 | 无锡市恒达矿山机械有限公司 | Alarming device used in mine |
| CN106703890A (en) * | 2017-03-20 | 2017-05-24 | 杨雪锋 | Sound-light alarm device for mining industry |
| CN113284315A (en) * | 2021-04-06 | 2021-08-20 | 温州职业技术学院 | Miner safety monitoring system, calibration method and false alarm elimination method |
| CN113284315B (en) * | 2021-04-06 | 2023-02-03 | 温州职业技术学院 | Miner safety monitoring system and calibration method |
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