CN216087074U

CN216087074U - Intelligent mine lamp circuit module

Info

Publication number: CN216087074U
Application number: CN202122545178.2U
Authority: CN
Inventors: 王官升; 庞超; 彭云; 雷彩虹
Original assignee: Datong Yulong Environmental Protection Co ltd
Current assignee: Datong Yulong Environmental Protection Co ltd
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2022-03-18
Anticipated expiration: 2031-10-22

Abstract

The utility model relates to a circuit design module of a mine lamp in a coal mine, in particular to an intelligent circuit module of the mine lamp, which comprises a main control circuit, a light source driving control circuit, a clock control circuit, a digital display circuit, a key control circuit and a power supply circuit, wherein the main control circuit is connected with the light source driving control circuit, the clock control circuit, the digital display circuit and the key control circuit, and the power supply circuit supplies power to the main control circuit, the light source driving control circuit, the clock control circuit, the digital display circuit and the key control circuit. The intelligent mine lamp circuit module not only realizes the illumination function; still have miner's lamp safety management function, realized other functions that miner's lamp management required: 1. the main and auxiliary lamps of the miner's lamp are switched and controlled; 2. setting and displaying an independent electronic number of each miner lamp; 3. the miner's lamp is internally provided with a battery for displaying the electric quantity; 4. the miner's lamp uses the overtime alarm and disarm function; 5. a clock display function; 6. a first-aid alarm function; 7. and (4) a personnel positioning function.

Description

Intelligent mine lamp circuit module

Technical Field

The utility model relates to a circuit design module of a mine lamp in a coal mine, in particular to an intelligent mine lamp circuit module.

Background

In the environment of explosive mixed gas such as methane, coal dust and the like in a coal mine, the miner lamp is a portable lighting lamp for individual personnel of a person working in a well, the miner lamp is called as the eyes of a miner, and the safety performance of the circuit design quality of the miner lamp product directly relates to the personal safety of the miner. And the fourth miner lamp is centrally managed according to AQ 1111 and 2014 miner lamp use management specification. Each miner's lamp must be numbered, and the person who often uses miner's lamps must specialize in the lamp. Within 2h of each shift, the light house personnel must report a list of non-light-handed personnel to the mine dispatch room. And the seventh rule of abandonment and recovery of miner lamp charging management: the miner's lamp is forced to be discarded when the time from the day of putting into use reaches 18 months or the charging and discharging cycle discharge frequency of the miner's lamp reaches 500 times. The traditional miner's lamp mainly realizes the basic lighting function, and can not meet the requirements of the underground miner's lamp management on the miner's lamp.

Disclosure of Invention

The intrinsically safe circuit module is specially designed to meet the higher requirement of underground miner lamp management on miner lamps.

The utility model is realized by adopting the following technical scheme: the utility model provides an intelligence miner's lamp circuit module, includes master control circuit, light source drive control circuit, clock control circuit, digital display circuit, button control circuit and power supply circuit, wherein master control circuit and light source drive control circuit, clock control circuit, digital display circuit, button control circuit connect, and power supply circuit is master control circuit, light source drive control circuit, clock control circuit, digital display circuit, button control circuit power supply. The main control circuit, the light source driving control circuit and the key control circuit complete the switching control of the main and auxiliary lamps, the clock control circuit performs timing, the digital display circuit can display the serial number of the miner lamp, the current time, the current electric quantity and the alarm indication, and the key control circuit controls the display content of the digital display circuit.

According to the intelligent miner lamp circuit module, the control chip of the main control circuit adopts STM8L152C6T6, and the light source driving control circuit comprises components LM358, TL431, SI2314 and AO 9926; a pin 3 of the LM358 is connected to the cathode of the TL431 through a seventeenth resistor R17, and is further connected to one end of a seventeenth resistor R17 and one end of a twelfth resistor R12, another end of the twelfth resistor R12 is connected to a power supply, the pin 3 is further connected to the anode of the TL431 through a nineteenth resistor R19, the pin 4 is connected to the anode of the TL431, the pin 5 is connected to the anode of the TL431 through a thirteenth resistor R23, the pin 5 is further connected to the reference electrode of the TL431 through a twenty-first resistor R21, the cathode of the TL431 is connected to the reference electrode, the pin 5 is further connected to the cathode of the third transistor D3 through a twelfth resistor R22, the anode of the third transistor D3 is connected to a pin 7, the pin 6 is connected to the anode of the TL431 through an eighteenth resistor R18, the pin 6 is further connected to the power supply through an eleventh resistor, the pin 7 is connected to the base of the transistor Q6 through a thirteenth resistor R13, the pin 8 is connected to the power supply, the collector of the transistor Q6 is connected to the cathode of the first transistor D1 and the cathode of the second transistor 2, an emitter is connected with an anode of the TL431, an anode of a first crystal diode D1 is connected with a pin 7 and a pin 8 of AO9926, an anode of a second crystal diode D2 is connected with a grid electrode of an SI2314MOS tube, an anode of a second crystal diode D2 is further connected with a pin 1 of LM358 through a fourteenth resistor R14, an anode of the second crystal diode D2 is further connected with a pin 2 of LM358 through a fifteenth resistor R15, a source of the SI2314MOS tube is connected with a pin 2 of LM358, a source of the SI2314MOS tube is further connected with an anode of the TL431 through a resistor RS1, a drain of the SI2314MOS tube is connected with a cathode of a main lamp, an anode of the main lamp is connected with a power supply, an anode of an auxiliary lamp is connected with the power supply, a cathode of the auxiliary lamp is connected with a pin 7 of AO9926 through a sixteenth resistor R16, a pin 5 and a pin 6 of AO9926 are connected with an anode of the TL431, the pin 1 and the pin 3 are grounded, a pin 2 is connected with a PD1 of the main control chip, and a pin 4 is connected with a PD0 of the main control chip;

the clock control circuit adopts a chip DS1302, and the chip DS1302 adopts a three-wire interface to synchronously communicate with a main control circuit control chip; the digital display circuit adopts a 4-bit sharing-anode nixie tube HSL02481, 4-bit selection ends of the nixie tube HSL02481 are respectively connected with a collector electrode of a triode, base electrodes of 4 triodes are respectively connected with pins PD4, PD5, PD6 and PD7 of a control chip of the main control circuit, and emitting electrodes of the 4 triodes are connected with a power supply; the 7-bit section selection end is respectively connected with pins of a control chip PEO, PE5, PE3, PE6, PE7, PE2 and PE4 of the main control circuit through resistors; the key control circuit adopts micro switches SWD and SWX, one contact of the micro switches SWD and SWX is connected with a power supply, the contact is respectively connected with pins PA7 and PA6 of a control chip of the main control circuit, and the other contact is grounded.

In the intelligent mine lamp circuit module, the pin PB0 of the main control circuit control chip is connected to the voltage division position of the mine lamp battery end. The battery voltage is sampled through the PB0 pin, thus determining the battery charge.

In the intelligent mine lamp circuit module, the pin of the master control circuit control chip PA4 is connected to the personnel positioning chip, and personnel positioning signals are processed through the pin PA 4.

The intelligent mine lamp circuit module further comprises an effective period monitoring circuit, the circuit comprises three resistors R26, R27 and R28, the three resistors R26, R27 and R28 are sequentially connected in series in a power supply loop, wherein a twenty-seventh resistor R27 is a resistor with a resistance value of 0, and a pin of a control chip PA5 of the main control circuit is connected between the R27 and the R28. When the miner lamp leaves the factory, a twenty-seventh resistor R27 in the middle needs to be removed, the JCSM between the R27 and the R28 changes from high level to low level, the main control chip starts to record the service time of the miner lamp, and the miner lamp is ensured to be used within the period of validity.

In the intelligent mine lamp circuit module, the two ends of the micro switch SWD and the SWX are connected with the debounce capacitor in parallel.

The intelligent mine lamp circuit module not only realizes the illumination function; still have miner's lamp safety management function, realized other functions that miner's lamp management required: 1. the main and auxiliary lamps of the miner's lamp are switched and controlled; 2. setting and displaying an independent electronic number of each miner lamp; 3. the miner's lamp is internally provided with a battery for displaying the electric quantity; 4. the miner's lamp uses the overtime alarm and disarm function; 5. a clock display function; 6. a first-aid alarm function; 7. and (4) a personnel positioning function.

Drawings

Fig. 1 is a circuit schematic diagram of a master control circuit.

Fig. 2 is a schematic circuit diagram of a light source driving control circuit.

Fig. 3 is a circuit schematic of the clock control circuit.

Fig. 4 is a circuit schematic diagram of a digital display circuit.

FIG. 5 is a schematic circuit diagram of the key control circuit.

Fig. 6 is a circuit schematic diagram of the validity period monitoring circuit.

Fig. 7 is a circuit schematic of the power supply circuit.

Detailed Description

An intelligent miner lamp circuit module is composed of a main control circuit, a light source driving control circuit, a clock control circuit, a digital display circuit, a key control circuit and other hardware circuits.

1. Master control circuit (fig. 1): the control chip of the main control circuit adopts an STM8L152C6T6, 8-bit ultra-low power consumption single chip microcomputer and comprises functions of up to 64KB flash memory and 2KB data flash memory EEPROM, RTC, LCD, timer, USART, I2C, SPI, analog-to-digital converter, digital-to-analog converter and comparator. The main control circuit is the core of the miner's lamp circuit module:

1.1, the output of 2 pins PD0 and PD1 controls the switching of main and auxiliary lamps;

1.2, communicating with a clock chip through a PB4-PB6 pin to obtain clock information, and displaying after processing;

1.3, controlling the bit selection of the nixie tube through a PD4-PD7 pin, controlling the segment selection of the nixie tube through a PE0-PE7 pin, and displaying different contents according to different requirements;

1.4 judging the input condition of the external button through pins PA6 and PA 7;

1.5 judging the battery voltage through a PB0 pin, and calculating the battery capacity;

1.6 processing the personnel positioning signal through a PA4 pin;

1.7 validity period monitoring is performed by the PA5 pin judgment.

2. Light source drive control circuit (fig. 2): the light source driving circuit comprises a constant current driving circuit and a main and auxiliary lamp switching circuit. The main components comprise LM358, TL431, SI2314, AO9926 and the like.

A pin 3 of the LM358 is connected to cathodes of the seventeenth resistor R17 and the TL431, and further connected to one end of the twelfth resistor R12 through a seventeenth resistor R17, and the other end of the twelfth resistor R12 is connected to a power supply, a pin 3 is further connected to an anode of the TL431 through a nineteenth resistor R19, a pin 4 is connected to an anode of the TL431, a pin 5 is connected to an anode of the TL431 through a thirteenth resistor R23, a pin 5 is further connected to a reference electrode of the TL431 through a twenty-first resistor R21, a cathode of the TL431 is connected to the reference electrode, a pin 5 is further connected to a cathode of the third transistor D22 through a twelfth resistor R22 and a cathode of the third transistor D3, an anode of the third transistor D3 is connected to a pin 7, a pin 6 is connected to an anode of the TL431 through an eighteenth resistor R18, a pin 6 is further connected to a power supply through an eleventh resistor, a pin 7 is connected to a base of the transistor Q6 through a thirteenth resistor R13, a pin 8 is connected to a power supply, a collector of the transistor Q6 is connected to a cathode of the first transistor D1 and a cathode of the second transistor 2, the emitter of the first transistor diode D1 is connected to the anode of the TL431, the anode of the first transistor diode D1 is connected to the 7 pin and the 8 pin of AO9926, the anode of the second transistor diode D2 is connected to the gate of the SI2314MOS transistor, the anode of the second transistor diode D2 is further connected to the 1 pin of LM358 through the fourteenth resistor R14, the anode of the second transistor diode D2 is further connected to the 2 pin of LM358 through the fifteenth resistor R15, the source of the SI2314MOS transistor is connected to the 2 pin of LM358, the source of the SI2314MOS transistor is further connected to the anode of the TL 358 through the resistor RS1, the drain of the SI2314MOS transistor is connected to the cathode of the main lamp, the anode of the main lamp is connected to the power supply, the anode of the auxiliary lamp is connected to the power supply, the cathode of the auxiliary lamp is connected to the 7 pin of AO9926 through the sixteenth resistor R16, the 5 pin and the 6 pin of AO9926 are connected to the anode of the TL431, the 1 pin and the 3 pin are grounded, the 2 pin is connected to the PD1, and the PD pin is connected to the PD0 control chip.

The constant current driving circuit adjusts the sampling resistance to adjust the driving current. The main and auxiliary lamps can be switched according to the mode and controlled by a single chip microcomputer, and the single chip microcomputer outputs pins ZDen and Fden to be switched according to the selection of a button.

When the SWD lamp key is pressed down, a Zden signal output by a pin PD0 of the singlechip is at a high level, at the moment, a first MOS tube in AO9926 is conducted, the voltage of a pin 3 of LM358 is higher than the voltage of a pin 2, the pin 1 outputs the high level, an SI2314MOS tube is conducted, and a main lamp is on; then, a lamp key is pressed, a Zden signal output by a pin PD0 of the singlechip is in a low level, an Fden signal output by a pin PD1 is in a high level, at the moment, a first mos tube in AO9926 is cut off, a second mos tube is conducted, a main lamp is turned off, and an auxiliary lamp is turned on; and when a lamp key is pressed, the output of the pins PD0 and PD1 of the single chip microcomputer are all low level, and the main lamp and the auxiliary lamp are all turned off. The main component LM358 comprises two independent dual operational amplifiers with high gain and internal frequency compensation inside, is suitable for a single power supply with a wide power supply voltage range, is also suitable for a dual power supply working mode, and has no relation between power supply current and power supply voltage under the recommended working condition.

3. Clock control circuit (fig. 3): clock data acquisition is achieved using the DS 1302. DS1302 is a low power consumption real time clock chip with a trickle current charging capability. It can time year, month, day, week, hour, minute and second, and has multiple functions of leap year compensation and the like. The working voltage is 2.0V-5.5V. The synchronous communication is carried out with the singlechip by adopting a three-wire interface (a CE pin is connected with a PB4 pin of a main control circuit control chip, an I/O pin is connected with a PB6 pin of the main control circuit control chip, and an SCLK pin is connected with a PB5 pin of the main control circuit control chip), and a plurality of bytes of clock signals or RAM data can be transmitted at one time by adopting a burst mode. Inside the DS1302 is a 31 × 8 RAM register for temporarily storing data. The DS1302 may be used for data recording, particularly for recording certain data points of particular interest, enabling simultaneous recording of data with the time at which the data occurs. The DS1302 is communicated with the single chip microcomputer through a serial bus, when one-time read-write operation is carried out, at least two bytes are read-written, the first byte is a control byte, whether the DS1302 is read or write operation is given, whether the DS1302 is used for RAM or CLOK register operation is given, and the second byte is data to be read and written.

4. Digital display circuit (fig. 4): by adopting the 4-bit common-anode nixie tube HSL02481, the functions of displaying the serial number of the miner lamp, displaying the current time, displaying the current electric quantity and giving an alarm can be realized. The 4-bit selection ends of the nixie tube HSL02481 are respectively connected with the collector of a triode, the bases of the 4 triodes are respectively connected with pins PD4-PD7 of a control chip of a main control circuit, and the emitters of the 4 triodes are connected with a power supply; the 7-bit section selection ends (a-g) are respectively connected with pins of control chips PEO, PE5, PE3, PE6, PE7, PE2 and PE4 of the main control circuit through resistors. The digital tube is controlled by the main control circuit in a scanning mode, the conduction of the triode is controlled to control the 4-bit selection end of the digital tube, a certain digital tube is selected to be lightened, and then the section selection of the digital tube is selected to realize the display of the designated number or symbol. The brightness of the nixie tube can be changed by changing the resistance value of the segment selection end.

5. Key control circuit (fig. 5): the main and auxiliary lamp conversion, display switching and function setting can be carried out by adopting the micro switches SWD and SWX, one contact of the micro switches SWD and SWX is connected with a power supply, the contact is respectively connected with pins PA7 and PA6 of the main control circuit control chip, and the other contact is grounded. The circuit is added with a debounce capacitor, when the mechanical contact is opened and closed, one key switch cannot be stably connected immediately when being closed and cannot be disconnected at a stroke when being opened due to the elastic action of the mechanical contact. Therefore, a series of shakes are generated at the closing and opening moments, and the shakes can cause one key to be misread for multiple times. In order to ensure that the single chip microcomputer only processes one closing of the keys once, the key jitter must be removed. The capacitor is connected in parallel to two ends of the mechanical contact by utilizing the characteristic that the voltage at two ends of the capacitor can not change suddenly, so that the burr voltage generated by contact vibration is eliminated. The micro switch SWD is a main lamp key and an auxiliary lamp key, and when the SWD lamp key is pressed, the main lamp high-power LED is lightened; pressing a lamp key again to turn off the main lamp, turning on the low-power LED of the auxiliary lamp and turning off the main lamp; then, the key of the lamp is pressed, and the main and auxiliary lamps are all turned off. The main light source is used for lighting during normal work, and the auxiliary light source is switched to light in time to save electric quantity under special conditions when the expected working time is exceeded. The microswitch SWX is a setting key, the microswitch SWX is used for setting the functions of lamp number, time, electric quantity display and alarm, the nixie tube flickers to display an alarm, and an alarm signal is sent to the underground substation through the main control chip and the personnel positioning chip.

6. Expiration monitoring circuit (fig. 6): the three-phase power supply circuit comprises three resistors R26, R27 and R28, wherein the three resistors R26, R27 and R28 are sequentially connected in series in a power supply loop, a twenty-seventh resistor R27 is a resistor with the resistance value of 0, and a pin of a main control circuit PA5 is connected between the R27 and the R28. When the miner lamp leaves the factory, a twenty-seventh resistor R27 in the middle needs to be removed, the JCSM between the R27 and the R28 changes from high level to low level, the main control chip starts to record the service time of the miner lamp, and the miner lamp is ensured to be used within the period of validity.

7. Supply circuit (fig. 7): including row of inserting P2 and the linear steady voltage chip BL9180 of low-dropout, connect the interior battery of miner's lamp through row of inserting P2, convert 4.2V into the 3V that each circuit needs through the linear steady voltage chip BL9180 of low-dropout, 1 pin of row of inserting P2 is through twenty-four resistance R24 and twenty-five resistance R25 ground connection, be miner's lamp battery end partial pressure department between twenty-four resistance R24 and the twenty-five resistance R25.

Claims

1. The utility model provides an intelligence miner's lamp circuit module which characterized in that: the LED lamp comprises a main control circuit, a light source driving control circuit, a clock control circuit, a digital display circuit, a key control circuit and a power supply circuit, wherein the main control circuit is connected with the light source driving control circuit, the clock control circuit, the digital display circuit and the key control circuit, and the power supply circuit supplies power for the main control circuit, the light source driving control circuit, the clock control circuit, the digital display circuit and the key control circuit.

2. The intelligent miner's lamp circuit module of claim 1, wherein: the control chip of the main control circuit adopts STM8L152C6T6, and the light source driving control circuit comprises components LM358, TL431, SI2314 and AO 9926; a pin 3 of the LM358 is connected to the cathode of the TL431 through a seventeenth resistor R17, and is further connected to one end of a seventeenth resistor R17 and one end of a twelfth resistor R12, another end of the twelfth resistor R12 is connected to a power supply, the pin 3 is further connected to the anode of the TL431 through a nineteenth resistor R19, the pin 4 is connected to the anode of the TL431, the pin 5 is connected to the anode of the TL431 through a thirteenth resistor R23, the pin 5 is further connected to the reference electrode of the TL431 through a twenty-first resistor R21, the cathode of the TL431 is connected to the reference electrode, the pin 5 is further connected to the cathode of the third transistor D3 through a twelfth resistor R22, the anode of the third transistor D3 is connected to a pin 7, the pin 6 is connected to the anode of the TL431 through an eighteenth resistor R18, the pin 6 is further connected to the power supply through an eleventh resistor, the pin 7 is connected to the base of the transistor Q6 through a thirteenth resistor R13, the pin 8 is connected to the power supply, the collector of the transistor Q6 is connected to the cathode of the first transistor D1 and the cathode of the second transistor 2, an emitter is connected with an anode of the TL431, an anode of a first crystal diode D1 is connected with a pin 7 and a pin 8 of AO9926, an anode of a second crystal diode D2 is connected with a grid electrode of an SI2314MOS tube, an anode of a second crystal diode D2 is further connected with a pin 1 of LM358 through a fourteenth resistor R14, an anode of the second crystal diode D2 is further connected with a pin 2 of LM358 through a fifteenth resistor R15, a source of the SI2314MOS tube is connected with a pin 2 of LM358, a source of the SI2314MOS tube is further connected with an anode of the TL431 through a resistor RS1, a drain of the SI2314MOS tube is connected with a cathode of a main lamp, an anode of the main lamp is connected with a power supply, an anode of an auxiliary lamp is connected with the power supply, a cathode of the auxiliary lamp is connected with a pin 7 of AO9926 through a sixteenth resistor R16, a pin 5 and a pin 6 of AO9926 are connected with an anode of the TL431, the pin 1 and the pin 3 are grounded, a pin 2 is connected with a PD1 of the main control chip, and a pin 4 is connected with a PD0 of the main control chip;

3. The intelligent miner's lamp circuit module of claim 1 or 2, wherein: the pin PB0 of the main control circuit control chip is connected to the voltage division position of the battery end of the miner lamp.

4. The intelligent miner's lamp circuit module of claim 1 or 2, wherein: the master control circuit control chip PA4 pin is connected to the personnel locator chip.

5. The intelligent miner's lamp circuit module of claim 1 or 2, wherein: the circuit also comprises an effective period monitoring circuit, the circuit comprises three resistors R26, R27 and R28, the three resistors R26, R27 and R28 are sequentially connected in series in a power supply loop, wherein a twenty-seventh resistor R27 is a resistor with the resistance value of 0, and a pin of a control chip PA5 of the main control circuit is connected between the R27 and the R28.

6. The intelligent miner's lamp circuit module of claim 1 or 2, wherein: the two ends of the micro switches SWD and SWX are also connected with a debounce capacitor in parallel.