CN216873438U

CN216873438U - Control circuit of mining emergency early warning light filling lamp and broadcast early warning system thereof

Info

Publication number: CN216873438U
Application number: CN202220047420.5U
Authority: CN
Inventors: 陈锦明; 黄建祥; 马火旺; 汪金洋
Original assignee: LONGYAN LONGAN SAFETY TECHNOLOGY CO LTD
Current assignee: LONGYAN LONGAN SAFETY TECHNOLOGY CO LTD
Priority date: 2022-01-10
Filing date: 2022-01-10
Publication date: 2022-07-01
Anticipated expiration: 2032-01-10

Abstract

The utility model discloses a mining emergency early warning light supplement lamp, wherein a control circuit of the mining emergency early warning light supplement lamp comprises a main chip, a MOSFET main switch, a first voltage conversion circuit, a second voltage conversion circuit and a MOSFET interface, wherein the main chip is provided with a control circuit which is respectively connected with an audible and visual alarm, a lamp holder and a video recording function module through the MOSFET interface; the communication of the supplementary lighting lamp adopts an LORA communication wireless transparent transmission mode, the emergency alarm supplementary lighting lamp is used as a node to communicate with the Lora gateway, and the industrial ring network is accessed to be linked with the system; the data of the mining surface sensor can be transmitted to the system, and the system has the functions of monitoring lamp on-line, monitoring video storage and telephone incoming call reminding. And has the functions of monitoring environment abnormity, and flashing and alarming the emergency early warning light supplement lamp when receiving the emergency evacuation notification signal.

Description

Control circuit of mining emergency early warning light filling lamp and broadcast early warning system thereof

Technical Field

The utility model relates to the field of non-coal mine operation, in particular to a control circuit of a mining emergency early warning light supplement lamp and a broadcast early warning system thereof.

Background

The existing illumination adopts the head lamp on the miner hat to illuminate, and the insufficient illumination light is easily caused during operation because the head lamp cannot be fixed; and the headlight does not possess control and communication function, can't control the condition of digging face in real time, the phone incoming telegram can't convey the warning, can't predict when emergency appears, the emergency response ability is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a control circuit of a mining emergency early warning light supplement lamp and a broadcast early warning system thereof, which are used for lighting on the working face of a non-coal mine mining area, carrying out phone incoming call broadcast transmission reminding and carrying out emergency warning evacuation.

The technical problem solved by the utility model can be realized by adopting the following technical scheme:

a control circuit of a mining emergency early warning light supplement lamp comprises a main chip, an MOSFET main switch, a first voltage conversion circuit, a second voltage conversion circuit and an MOSFET interface;

the main chip is provided with a power supply interface, a contact switch interface, an LORA antenna interface, a status indicator lamp interface, an electric quantity display interface and an RS485 interface, and is also provided with a control circuit connected with the MOSFET interface; the power interface is connected with the first voltage conversion circuit, the contact switch interface is connected with the contact switch for detection, the LORA antenna interface is connected with the high-power LORA module, and the module is communicated with the main chip through a UART port or an SPI port; the state indicator light interface is connected with a communication and control state indicator light;

the first voltage conversion circuit is directly connected to the output end of the battery, converts the voltage of the battery into 3.3V and is used for supplying power to the main chip, the contact key detection circuit and the control circuit of the MOSFET main switch; the MOSFET main switch is connected with a battery and the second voltage conversion circuit; the second voltage conversion circuit is connected with the MOSFET main switch, converts input voltage into voltage required by the circuit board and supplies power to other parts of the control board; the MOSFET interface is powered by the second voltage conversion circuit, and the output end of the MOSFET interface is respectively connected with the audible and visual alarm, the lamp cap and the video recording function module.

Preferably, a constant current control module is further arranged in front of the interface where the MOSFET interface is connected with the lamp cap, and the constant current control module is arranged between the MOSFET interface and the second voltage conversion circuit.

Preferably, the MOSFET master switch is further connected with a battery power detection and display module.

Preferably, the main chip is a single chip microcomputer.

Preferably, the status indicator lamp interface is connected with a status indicator lamp of LORA communication, control output and RS485 communication.

Preferably, the MOSFET total switch controls the total power supply path of the battery by adopting a MOSFET with the current larger than 20A and the maximum voltage of 48V.

Preferably, the MOSFET interface is connected to a lamp cap of the light supplement lamp, and the light supplement lamp can be controlled to display three states of white light, white flashing and red light, wherein the current control capability of each channel is greater than 60A, and the withstand voltage is greater than 50V.

A broadcast early warning system of a light supplement lamp comprises a telephone, an incoming call signal acquisition transponder and the light supplement lamp, wherein the incoming call signal acquisition transponder is connected with the telephone, monitors and acquires incoming call signals in real time, is internally provided with a battery, a charge and discharge management circuit and an incoming call monitoring circuit, monitors incoming call ringing signal lines, and wirelessly transmits incoming call information to all the light supplement lamps in a nearby communication range through an LORA.

Preferably, the lighting device further comprises a repeater, and the repeater is used for repeating the LORA communication signal sent by the future electric signal acquisition repeater to the light supplement lamp.

Preferably, the incoming call signal acquisition transponder is supplied with alternating current, and the supply voltage range is AC 85V-265V; and LORA communication is adopted wirelessly.

Preferably, the incoming call signal acquisition transponder is provided with a status indicator lamp, which comprises a power indicator lamp and a communication indicator lamp.

The light supplement lamp adopts a portable charging design, and can provide continuous illumination for 8 hours; the emergency early warning communication adopts an LORA communication wireless transparent transmission mode, the lamp holder end has an electric quantity indication, and the on-off is a contact switch button; periodically reporting the state of the lamp after starting up, and receiving and executing an instruction from a server; after the power-off button is pressed down, firstly reporting the power-off state to the server, then closing all peripheral circuits, enabling the equipment to enter a low-power-consumption state, and only keeping the function of detecting a power-on/off button; the emergency early warning light supplement lamp is used as a node to communicate with a Lora gateway, and can be linked with a system when being connected to an industrial ring network; the system has the functions of monitoring lamp on-line, monitoring video storage and telephone incoming call reminding. And the system can monitor the abnormal environment, and can flash and alarm the emergency early warning light supplement lamp when receiving the emergency evacuation notification signal.

Drawings

Fig. 1 is a schematic diagram of a circuit control module of the fill-in light of the present invention.

Fig. 2 is a schematic diagram of the connection of the main chip interface of the fill-in light.

Fig. 3 is a schematic diagram of module connections of the broadcast warning system of the present invention.

Detailed Description

The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

As shown in fig. 1 to 3, which are preferred embodiments of the present invention, the fill-in light adopts a portable charging design, has a power of about 80W, is provided with a built-in DC12V lithium battery (60AH) for power supply, and can provide continuous illumination for 8 hours; the brightness is basically maintained unchanged in 8 hours, 2 paths of white light are output in a constant current mode, and power supply is cut off when the electric quantity is nearly exhausted.

The control circuit is shown in fig. 1 and 2 and comprises a main chip, a main MOSFET switch, a first voltage conversion circuit, a second voltage conversion circuit and a MOSFET interface.

The main chip selects a common singlechip, is provided with a power supply interface, a contact switch interface, an LORA antenna interface, a status indicator lamp interface, an electric quantity display interface and an RS485 interface, and is provided with an output connected with the MOSFET interface. The power interface is connected with the first voltage conversion circuit, and the battery supplies power to the main chip through the first voltage conversion circuit. The contact switch interface is connected with the contact switch for detection, the contact switch gives an on-off signal, and corresponding operation is executed through detection and judgment of the single chip microcomputer. The LORA antenna interface is connected with a high-power LORA module, and the module is communicated with the main chip single chip microcomputer through a UART port or an SPI port. The status indicator lamp interface connection communication, the control status indicator lamp, communication, the status indicator lamp of control status indicator lamp include LORA communication, control output and RS485 communication, and external pilot lamp need adopt the pilot lamp of voltage 3.3V. The RS485 interface is a reserved sensor communication interface and can upload the monitoring data of the sensor to the system in real time.

The first voltage conversion circuit is directly connected to the output end of the battery, converts the voltage of the battery into 3.3V and is used for supplying power to the single chip microcomputer, the contact key detection circuit and the MOSFET main switch control circuit.

The MOSFET main switch is connected with the battery and the second voltage conversion circuit, and the MOSFET with the current larger than 20A and the maximum voltage of 48V is adopted to control the battery main power supply path.

The second voltage conversion circuit is connected with the MOSFET main switch, can be internally provided with a DC/DC conversion chip according to the output voltage requirement, controls constant voltage output and can adjust the output current value within a certain range; it is applicable to any device that converts an input voltage to DC12V and satisfies an input voltage range of DC12V V to 36V.

The MOSFET interface is powered by a second voltage conversion circuit, and the output end of the MOSFET interface is respectively connected with an audible and visual alarm, a lamp cap and a video function module to control the on-off of the battery power supply; meanwhile, the main chip transmits the collected information and the received external control signal. The MOSFET interface is connected with a lamp cap of the light supplement lamp and can control the light supplement lamp to display three states of white light, white flash and red light, the current control capacity of each path is greater than 60A, and the withstand voltage is greater than 50V; in the embodiment, five MOSFET interfaces are arranged, and redundant two paths can be connected with other lamp caps or used as standby lighting interfaces. The MOSFET interface is connected with the audible and visual alarm and the video recording function module, supplies power to the audible and visual alarm and the video recording function module, is supplied with power by the second voltage conversion circuit, and has the current control capacity of more than 10A and the withstand voltage of more than 50V. Audible and visual alarm can send out audio alert and red scintillation warning light, and the video recording function module can realize carrying out the video recording storage to the face of digging.

A constant current control module (not shown in the figure) is arranged in front of the interface where the MOSFET interface is connected with the lamp holder and is arranged between the MOSFET interface and the second voltage conversion circuit, the constant current control module utilizes a high-precision sampling resistor to collect current and feed the current back to the operational amplifier for comparison according to the output current requirement, the MOSFET switching circuit is controlled to realize constant current output, and the output current value is adjustable within a certain range.

The emergency alarm light supplement lamp can receive an alarm instruction sent by the system and send out alarm sound and flash a red light according to the received alarm instruction under the abnormal conditions of emergency and the like in the mine. The emergency alarm light supplement lamp is used for lighting of workers under a mine, and the system is linked for escape early warning.

The MOSFET master switch is also connected with a battery electric quantity detection and display module which is used for detecting and displaying the battery electric quantity and calculating the residual electric quantity of the battery through sampling the battery voltage. The electric quantity display can use a nixie tube and an indicator light, and the nixie tube directly displays the percentage value; also can show with a row of pilot lamp, for example with five a row of demonstration electric quantities, every lamp corresponds 20% electric quantity, and it is 100% to light entirely, and 4 lights are lighted and are gone out with 1 lamp and be 80%, and 3 lights are lighted and are gone out with 2 lamps and be 60%, and the electric quantity of analogizing indicates in proper order.

The broadcast early warning system of the light supplement lamp comprises a telephone, an incoming call signal acquisition transponder and the light supplement lamp, wherein the incoming call signal acquisition transponder is connected with the telephone and monitors and acquires incoming call signals in real time, and an incoming call ringing signal line is monitored through an incoming call monitoring circuit arranged inside to judge whether an incoming call exists or not. When the telephone is monitored to have an incoming call, the telephone immediately sends the incoming call information to all the supplementary lighting lamps in the nearby communication range through LORA wireless. The incoming call signal acquisition transponder adopts alternating current power supply, and the power supply voltage range is as follows: AC 85V-265V; the wireless LORA communication that adopts, it is greater than 8 kilometers with the spacious visible distance of light filling lamp. The internal part is provided with a battery and a charge and discharge management circuit, and the device can work for more than 1 month under the condition of not being connected with external power supply. The incoming call signal acquisition transponder is provided with 2 status indicator lamps comprising power indicator lamps and communication indicator lamps; when the equipment is powered on normally, the power indicator lamp is normally on; when the incoming call ringing signal is detected, the communication indicator lamp flickers. The incoming call monitoring circuit synchronously sends signals to the safety digital lamp and the light supplement lamp to flicker during ringing through a ringing signal line of the monitoring telephone; answering off-hook or ringing is finished, and sending a signal to the safety supplementary lighting lamp to synchronously stop flashing (namely stop prompting flashing); the monitoring wire is incorporated into the telephone set, does not influence the work of the original circuit, and only senses and monitors through the triode circuit.

After the light supplement lamp receives the incoming call prompt signal, the audible and visual alarm is immediately started to broadcast the cyclic voice prompt of 'incoming call, answering call, incoming call and answering call', and the illuminating lamp flickers (off for 0.2 second and on for 2 seconds); and after receiving the ringing stop signal, immediately stopping the prompting state.

The relay determines whether the relay needs to be installed according to the communication distance between the light supplement lamp and the incoming call signal collecting and forwarding device, and the relay relays the LORA communication signals sent by the incoming call signal collecting and forwarding device to the light supplement lamp. If the communication distance from the fill-in light (working surface) to the telephone is enough, the repeater is not needed. The repeater receives the signal and directly relays the signal to a nearby safety digital lamp or a supplementary lighting lamp, and the repeater can also realize multi-stage relay.

When the system works, the incoming call signal acquisition transponder is in a state of monitoring incoming call signals in real time; the repeater is in a wait for reception state; after the light supplement lamp is started, the light supplement lamp is in a standby receiving state except for the lighting state.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the present invention.

Claims

1. A mining emergency early warning light supplement lamp is characterized in that a control circuit of the mining emergency early warning light supplement lamp comprises a main chip, an MOSFET main switch, a first voltage conversion circuit, a second voltage conversion circuit and an MOSFET interface;

the main chip is provided with a power supply interface, a contact switch interface, an LORA antenna interface, a status indicator lamp interface, an electric quantity display interface and an RS485 interface, and is also provided with a control circuit connected with the MOSFET interface; the power interface is connected with the first voltage conversion circuit, the contact switch interface is connected with the contact switch for detection, the LORA antenna interface is connected with the LORA module, and the LORA module is communicated with the main chip through a UART port or an SPI port; the status indicator lamp interface is connected with the communication and control status indicator lamp, and comprises a LORA communication status indicator lamp, a control output status indicator lamp and an RS485 communication status indicator lamp;

the first voltage conversion circuit is directly connected to the output end of the battery, converts the voltage of the battery into 3.3V and is used for supplying power to the main chip, the contact key detection circuit and the control circuit of the MOSFET main switch; the MOSFET main switch is connected with a battery and the second voltage conversion circuit; the second voltage conversion circuit is connected with the MOSFET main switch, converts input voltage into voltage required by the circuit board and supplies power to the control board; the MOSFET interface is powered by a second voltage conversion circuit, and the output end of the MOSFET interface is connected with the audible and visual alarm, the lamp cap and the camera respectively.

2. The mining emergency early warning light supplement lamp according to claim 1, characterized in that: and a constant current control module and a constant voltage control module are also arranged in front of the interface connecting the MOSFET interface and the lamp cap, and are arranged between the MOSFET interface and the second voltage conversion circuit.

3. The mining emergency early warning light supplement lamp according to claim 1, characterized in that: the MOSFET main switch is also connected with a battery electric quantity detection and display module.

4. The mining emergency early warning light supplement lamp according to claim 1, characterized in that: the main chip is a single chip microcomputer.

5. The mining emergency early warning light supplement lamp according to claim 1, characterized in that: the status indicator lamp interface comprises a status indicator lamp of LORA communication, control output and RS485 communication.

6. The mining emergency early warning light supplement lamp according to claim 1, characterized in that: the MOSFET total switch adopts the MOSFET with the current larger than 20A and the maximum voltage of 48V to control the total power supply path of the battery.

7. The mining emergency early warning light supplement lamp according to claim 1, characterized in that: the MOSFET interface is connected with a lamp cap of the light supplement lamp, the light supplement lamp can be controlled to display three states of white light, white flash and red light, the current control capacity of each path is larger than 60A, and the withstand voltage is larger than 50V.

8. The broadcasting early warning system applying the mining emergency early warning supplementary lighting lamp of claim 1 is characterized in that: the system comprises a telephone, an incoming call signal acquisition transponder and light supplementing lamps, wherein the incoming call signal acquisition transponder is connected with the telephone and used for monitoring and acquiring incoming call signals in real time, a battery, a charge and discharge management circuit and an incoming call monitoring circuit are arranged in the telephone and used for monitoring incoming call ringing signal lines, LORA communication is adopted, and incoming call information is sent to all the light supplementing lamps in a nearby communication range in a wireless mode through LORA.

9. The broadcast early warning system of the mining emergency early warning supplementary lighting lamp according to claim 8, characterized in that: the relay is used for relaying the LORA communication signal sent by the electric signal acquisition transponder to the light supplement lamp.

10. The broadcast early warning system of the mining emergency early warning supplementary lighting lamp according to claim 8, characterized in that: and the incoming call signal acquisition transponder is provided with a state indicator lamp which comprises a power indicator lamp and a communication indicator lamp.