CN218276744U - Wireless fire control gateway control circuit and wireless fire control gateway - Google Patents

Abstract

The application relates to a wireless fire-fighting gateway control circuit and a wireless fire-fighting gateway, which comprise a mainboard single chip microcomputer, a key single chip microcomputer, an Internet of things communication module, an LORA communication module, a sound indication module, an optical indication module, a storage module and a power supply module; the mainboard single chip microcomputer and the key single chip microcomputer receive and send communication signals mutually; the LORA communication module comprises a first LORA chip and a second LORA chip, the first LORA chip and the second LORA chip are communicated by adopting the same frequency, and the first LORA chip and the second LORA chip are electrically connected by an SPI interface of the mainboard single chip microcomputer; a communication interface of the Internet of things communication module is electrically connected with a communication interface of the mainboard singlechip; the receiving ends of the sound indicating module and the light indicating module are electrically connected with the control end of the mainboard single chip microcomputer; the communication interface of the storage module is respectively and electrically connected with the communication interfaces of the mainboard single chip microcomputer and the key single chip microcomputer; first LORA chip and second LORA chip are rather than the automatic pair code of subordinate's detector to adopt same frequency communication, can effectively avoid the interference of other detectors, guarantee signal quality.

Description

Wireless fire control gateway control circuit and wireless fire control gateway

Technical Field

The application relates to the field of fire alarm, in particular to a wireless fire-fighting gateway control circuit and a wireless fire-fighting gateway.

Background

The fire control gateway is as a fire control safety control product that possesses fire detection and security alarm function, can match multiple detector, when the detector detected the alert condition, sends alarm signal and starts the alarm of connecting at once by the fire control gateway, sends alarm information to monitor platform simultaneously, notifies relevant personnel, improves the efficiency of fighting a fire, ensures personal and property safety.

Fire control gateway on the market generally need to cooperate and connect multiple detectors use such as smoke and temperature sense, and the signal is easily disturbed in transmission process, influences the communication.

SUMMERY OF THE UTILITY MODEL

In view of this, the present application provides a wireless fire gateway control circuit and a wireless fire gateway to solve the current problems.

According to one aspect of the application, a wireless fire-fighting gateway control circuit is provided, and comprises a mainboard single chip microcomputer, a key single chip microcomputer, an internet of things communication module, an LORA communication module, a sound indication module, an optical indication module, a storage module and a power supply module;

the mainboard single chip microcomputer and the key single chip microcomputer receive and send communication signals mutually;

LORA communication module includes first LORA chip and second LORA chip, first LORA chip with the communication of same frequency is adopted to the second LORA chip, and by the SPI interface electricity of mainboard singlechip is connected.

A communication interface of the Internet of things communication module is electrically connected with a communication interface of the mainboard single chip microcomputer, wherein the Internet of things communication module comprises a 4G communication module and a wired communication module; the 4G communication module is used for sending AT command configuration parameters by the mainboard single chip microcomputer, and the wired communication module is configured and works by the SPI communication of the mainboard single chip microcomputer;

the receiving ends of the sound indicating module and the light indicating module are electrically connected with the control end of the mainboard singlechip;

the communication interface of the storage module is respectively and electrically connected with the communication interfaces of the mainboard single chip microcomputer and the key single chip microcomputer;

the power supply output end of the power supply module is electrically connected with the mainboard single chip microcomputer, the key single chip microcomputer, the Internet of things communication module, the sound indication module, the light indication module, the LORA communication module and the power supply output end of the storage module.

In one possible implementation manner, the first LORA chip and the second LORA chip are both of LRM-470-RL22 type;

the first LORA chip receives an L1_ MOSI signal sent by the mainboard single chip microcomputer, and sends an L1_ MISO signal to the mainboard single chip microcomputer;

the second LORA chip receives an L2_ MOSI signal sent by the mainboard single chip microcomputer, and sends an L2_ MISO signal to the mainboard single chip microcomputer;

and the L1_ SCK signal and the L2_ SCK signal transmitted between the first LORA chip and the second LORA chip and the mainboard single chip microcomputer are both output by the mainboard single chip microcomputer and used for providing clock pulses.

In a possible implementation manner, the 4G communication module includes a 4G chip, a first triode, a second triode, a first resistor, a second resistor, and a SIM communication module;

the emitter of the first triode is electrically connected with the MAIN _ TXD pin of the 4G chip, the base of the first triode is electrically connected with one end of the first resistor, the other end of the first resistor is electrically connected with the VDD _ EXT pin of the 4G chip, and the collector of the first triode is electrically connected with the PH2 pin of the mainboard singlechip; the emitting electrode of the second triode is electrically connected with a pin of the mainboard singlechip PC13, the base electrode of the second triode is electrically connected with one end of the second resistor, the other end of the second resistor is electrically connected with the V _4G of the power supply module, and the base electrode of the second triode is electrically connected with the MAIN _ RXD pin of the 4G chip;

the SIM communication module comprises an SIM card seat, a first diode and a third resistor, wherein the first diode is a TVS diode;

the pin 7 of the SIM card holder is electrically connected with the pin 1 of the first diode and is suitable for transmitting an SIM _ DATA signal, one end of the third resistor is electrically connected with the pin 5 of the SIM card holder, and the other end of the third resistor is electrically connected with a USIM _ DATA pin of the 4G chip.

In a possible implementation manner, the wired communication module includes an ethernet chip, an oscillator, a first capacitor, a second capacitor, and a fourth resistor, where the ethernet chip is a W5500 chip;

an MOSI pin of the Ethernet chip is electrically connected with a PB8 pin of the mainboard single chip microcomputer, and an MSIO pin of the Ethernet chip is electrically connected with a PB9 pin of the mainboard single chip microcomputer;

two ends of the oscillator are connected in parallel to two ends of the fourth resistor, one end of the fourth resistor is electrically connected with an XI/CLCKIN pin of the Ethernet chip, and the other end of the fourth resistor is electrically connected with an XO pin of the Ethernet chip; and the first capacitor and the second capacitor are connected in series and then are respectively electrically connected with two ends of the oscillator.

In a possible implementation manner, the sound indication module includes a buzzer, a third triode, a first inductor, a second inductor, a fifth resistor, a sixth resistor, and a seventh resistor;

one end of the first inductor is electrically connected with a PC9 pin of the key single chip microcomputer, the other end of the first inductor is electrically connected with one end of the fifth resistor, the other end of the fifth resistor is electrically connected with a base electrode of the third triode, and a collector electrode of the third triode is electrically connected with one end of the second inductor;

the two ends of the buzzer are electrically connected with the two ends of the second inductor, the two ends of the sixth resistor are respectively electrically connected with the base electrode and the emitting electrode of the third triode, one end of the seventh resistor is electrically connected with the emitting electrode of the third triode, and the other end of the seventh resistor is grounded.

In one possible implementation manner, the light indication module includes a fire alarm indication module, a fault indication module, a main power work indication module, a standby power work indication module and a communication indication module;

the main electric work indicating module receives an LED1 signal sent by the mainboard single chip microcomputer; the fire alarm indicating module receives an LED2 signal sent by the mainboard single chip microcomputer; the standby power work indication module receives an LED3 signal sent by the mainboard single chip microcomputer; the fault indication module receives an LED4 signal sent by the mainboard single chip microcomputer; and the communication indication module receives a 4G_LED signal sent by the 4G chip.

In a possible implementation manner, the system further comprises a state switching module;

the state switching module comprises an eighth resistor, a ninth resistor, a third capacitor, a fourth triode, a second diode, a first wiring terminal and a relay;

one end of the eighth resistor is electrically connected with a PC8 pin of the key single chip microcomputer, the other end of the eighth resistor is electrically connected with a base electrode of the fourth triode, two ends of the ninth resistor are respectively electrically connected with a base electrode and an emitting electrode of the fourth triode, the third capacitor is connected in parallel with two ends of the ninth resistor, and a collector electrode of the fourth triode is electrically connected with an anode of the second diode;

and the anode and the cathode of the second diode are electrically connected with the relay, and the two ends of the first wiring terminal are electrically connected with the relay.

In a possible implementation manner, the system further comprises a key driving module;

the key driving module comprises a switching key module, an upturning key module, a downturning key module, a mute key module and a confirmation key module;

the switching KEY module sends a KEY1 signal to a PB0/ADC12_ IN8 pin of the KEY single chip microcomputer; the upturning KEY module sends a KEY2 signal to a PB1/ADC12_ I N pin of the KEY single chip microcomputer; the KEY-down module sends a KEY3 signal to a PC5/ADC1_ IN15 pin of the KEY single chip microcomputer; the mute KEY module sends a KEY4 signal to a PC4/ADC1_IN14 pin of the KEY single chip microcomputer; and the confirmation KEY module sends a KEY5 signal to a PC7/AD C1_ IN17 pin of the KEY single chip microcomputer.

In one possible implementation manner, the power supply module comprises a voltage transformation rectification filter module, a 3.8V power supply module and a 3.3V power supply module;

the voltage transformation rectification filter module comprises a second wiring terminal, a rectifier bridge and a first filter module;

two ends of the second connecting terminal are respectively and electrically connected with the AC1 pin and the AC2 pin of the rectifier bridge and are suitable for inputting 220V alternating current to the rectifier bridge, the V + pin and the V-pin of the rectifier bridge are respectively and electrically connected with one end of the first filtering module, and the other end of the first filtering module outputs 24V direct current;

and the input ends of the 3.8V power supply module and the 3.3V power supply module are respectively electrically connected with the output end of the first filtering module.

According to another aspect of the present application, there is provided a wireless fire protection gateway comprising the wireless fire protection gateway control circuit described in any one of the above possible implementations.

The beneficial effect of this application:

in the wireless fire-fighting gateway control circuit, an LORA communication module is adopted to receive fire alarm signals detected by subordinate detectors of the LORA communication module, and the LORA communication module is communicated with a mainboard single chip microcomputer to transmit the alarm signals to the mainboard single chip microcomputer. The sound indication module and the light indication module are driven by the mainboard single chip microcomputer to send sound and light alarm signals, the sound and light alarm connected with the gateway is started to perform sound and light alarm, meanwhile, the alarm information is transmitted to the monitoring platform through the internet of things communication module, related personnel are informed, and fire alarm processing are achieved. It should be noted that, adopt first LORA chip and second LORA chip to mutually support in LORA communication module, first LORA chip and second LORA chip are rather than the automatic pair code of subordinate's detector to adopt same frequency communication, can effectively avoid the interference of other detectors, first LORA chip and second LORA chip set up simultaneously can effectively ensure signal data safety, are difficult for losing, realize guarantee communication quality's purpose from this.

Other features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features, and aspects of the application and, together with the description, serve to explain the principles of the application.

Fig. 1 shows a wireless fire gateway control circuit diagram of an embodiment of the present application;

fig. 2 shows a circuit diagram of a motherboard single chip of the embodiment of the present application;

FIG. 3 shows a circuit diagram of a key single chip microcomputer according to an embodiment of the present application;

fig. 4 shows a circuit diagram of a LORA communication module according to an embodiment of the present application;

fig. 5 shows a circuit diagram of a 4G communication module of an embodiment of the present application;

fig. 6 shows a circuit diagram of a wired communication module of an embodiment of the present application;

FIG. 7 shows a circuit diagram of an audible indicating module of an embodiment of the present application;

FIG. 8 shows a circuit diagram of a light indicating module of an embodiment of the present application;

FIG. 9 is a circuit diagram of a key driving module according to an embodiment of the present application;

FIG. 10 shows a circuit diagram of a state switching module of an embodiment of the present application;

FIG. 11 shows a circuit diagram of a memory module of an embodiment of the present application;

fig. 12 shows a circuit diagram of a power supply module of an embodiment of the present application.

Detailed Description

Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

It will be understood, however, that the terms "central," "longitudinal," "lateral," "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the present application or for simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.

Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present application. It will be understood by those skilled in the art that the present application may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present application.

Fig. 1 shows a wireless fire gateway control circuit diagram of an embodiment of the present application; fig. 2 shows a circuit diagram of a motherboard single chip microcomputer according to an embodiment of the present application; FIG. 3 shows a circuit diagram of a key single chip microcomputer according to an embodiment of the present application; fig. 4 shows a circuit diagram of a LORA communication module according to an embodiment of the present application; fig. 5 shows a circuit diagram of an internet of things communication module according to an embodiment of the present application; FIG. 6 shows a circuit diagram of an audible indicating module of an embodiment of the present application; FIG. 7 shows a circuit diagram of a light indicating module of an embodiment of the present application; FIG. 8 is a circuit diagram of a key driving module according to an embodiment of the present application; FIG. 9 shows a circuit diagram of a state switching module of an embodiment of the present application; FIG. 10 shows a circuit diagram of a memory module of an embodiment of the present application; fig. 11 shows a circuit diagram of a power supply module of an embodiment of the present application.

As shown in fig. 1, 2 and 3, the wireless fire gateway control circuit includes a motherboard single chip microcomputer 100, a key single chip microcomputer 200, an internet of things communication module 300, a LORA communication module 400, a sound indication module 510, a light indication module 500, a storage module 600 and a power supply module 900; the mainboard single chip microcomputer 100 and the key single chip microcomputer 200 receive and send communication signals mutually; the LORA communication module 400 includes a first LORA chip and a second LORA chip, wherein the first LORA chip and the second LORA chip communicate with each other at the same frequency and are electrically connected to each other through an SPI interface of the motherboard single chip; the communication interfaces of the internet of things communication module 300 are electrically connected with the communication interface of the mainboard singlechip 100, wherein the internet of things communication module 300 comprises a 4G communication module 310 and a wired communication module 320; the 4G communication module 310 sends 100 AT command configuration parameters through the mainboard single chip microcomputer, and the wired communication module 320 is configured and works through SPI communication of the mainboard single chip microcomputer 100; the receiving ends of the sound indicating module 510 and the light indicating module 500 are both electrically connected with the control end of the motherboard single-chip microcomputer 100; the communication interface of the storage module 600 is electrically connected with the communication interfaces of the mainboard single-chip microcomputer 100 and the key single-chip microcomputer 200 respectively; the power output end of the power module 900 is electrically connected to the power output ends of the motherboard single-chip microcomputer 100, the key single-chip microcomputer 200, the internet of things communication module 300, the LORA communication module 400, the voice indication module 510, the light indication module 500 and the storage module 600.

In this embodiment, the LORA communication module 400 in the wireless fire-fighting gateway control circuit communicates with the motherboard single-chip microcomputer 100 according to the received fire alarm signal transmitted by the subordinate detector, the motherboard single-chip microcomputer 100 drives the sound indication module 510 and the light indication module 500 to send out sound and light alarm signals, and simultaneously transmits alarm information to the monitoring platform through the internet of things communication module 300, and timely notifies related personnel in a short message or telephone manner, so that the fire alarm is timely handled, and personal and property safety is guaranteed. The LORA communication module 400 includes a first LORA chip and a second LORA chip, which communicate with each other at the same frequency, wherein the specific communication frequency is 470-510HZ, and the working voltage is 3.3V. It should be noted that, the purpose of automatically matching codes with the subordinate detectors can be realized by mutually matching the first LORA chip and the second LORA chip, one-to-one codes during initial use are not needed, and the occurrence of frequency needing to be set in advance before the LORA communication module 400 is used is reduced, so that the LORA communication module is more convenient and fast. Meanwhile, the first LORA chip and the second LORA chip communicate at the same frequency, so that the first LORA chip and the second LORA chip can be conveniently distinguished from the frequency of other communication modules, and signals are prevented from being interfered in the communication process.

In one specific embodiment, the first LORA chip and the second LORA chip both adopt LRM-470-RL22 models; the first LORA chip receives an L1_ MOSI signal sent by the mainboard single chip microcomputer, and sends an L1_ MISO signal to the mainboard single chip microcomputer; the second LORA chip receives the L2_ MOSI signal sent by the mainboard single chip microcomputer, and sends the L2_ MISO signal to the mainboard single chip microcomputer; and the L1_ SCK signal and the L2_ SCK signal transmitted between the first LORA chip and the mainboard single chip microcomputer and between the second LORA chip and the mainboard single chip microcomputer are both output by the mainboard single chip microcomputer and are used for providing clock pulses.

In this embodiment, the first LORA chip and the second LORA chip are connected to the antenna through the pi-type matching circuit to receive and transmit data. The L1_ SCK signal and the L2_ SCK signal are clock signals, the L1_ MOSI signal and the L1_ MISO signal which are mutually transmitted between the first LORA chip and the mainboard single chip microcomputer are completed based on the L1_ SCK signal, and the L2_ MOSI signal and the L2_ MISO signal which are mutually transmitted between the second LORA chip and the mainboard single chip microcomputer are completed based on the L2_ SCK signal. First LORA chip and second LORA chip mutually support and can also ensure that signal data is difficult for losing, if first LORA chip falls off, can be by the quality of second LORA chip guarantee communication in-process signal transmission.

In one embodiment, the 4G communication module includes a 4G chip D1A, a first transistor V T, a second transistor VT5, a first resistor R31, a second resistor R42, and a SIM communication module 311; an emitter of the first triode VT4 is electrically connected with a MAIN _ TXD pin of the 4G chip D1A, a base of the first triode V T is electrically connected with one end of a first resistor R31, the other end of the first resistor R31 is electrically connected with a VD _ EXT pin of the 4G chip D1A, and a collector of the first triode VT4 is electrically connected with a PH2 pin of the mainboard singlechip 100; an emitter of the second triode VT5 is electrically connected with a pin of the mainboard single chip microcomputer PC13, a base of the second triode V T is electrically connected with one end of a second resistor R42, the other end of the second resistor R42 is electrically connected with V _4G of the power supply module, and the base of the second triode VT5 is electrically connected with a pin MAIN _ RXD of the 4G chip; the SIM communication module 310 includes a SIM card socket U4, a first diode Z1, and a third resistor, wherein the first diode is a TVS diode; pin 7 of the SIM card holder U4 is electrically connected to pin 1 of the first diode Z1 and is adapted to transmit SIM _ DATA signals, and one end of the third resistor R38 is electrically connected to pin 5 of the SIM card holder, and the other end is electrically connected to the USIM _ DATA pin of the 4G chip.

In this embodiment, the motherboard single-chip microcomputer 100 sends an AT command through the serial port to control the parameter setting of the 4G communication module 310, and meanwhile, the 4G communication module 310 is also configured with a SIM card and a dedicated 4G antenna for use in cooperation, thereby ensuring that the signal quality is not interfered during transmission. Specifically, 4G communication module 310's operating voltage is 3.8V, and the 4G chip of adoption is the EC200N chip, and its ANT _ MAIN pin passes through resistance and realizes being connected with the antenna seat connector, and the mainboard singlechip resets through sending RST _ IO drive 4G communication module through sending POE _ IO signal drive 4G communication module switching on and shutting down simultaneously, ensures normal work from this.

In one embodiment, the wired communication module 320 includes an ethernet chip D2, an oscillator G1, a first capacitor C6, a second capacitor C7, and a fourth resistor R30, where the ethernet chip is a W5 chip; an MOSI pin of the Ethernet chip is electrically connected with a PB8 pin of the mainboard single chip microcomputer, and an MSIO pin of the Ethernet chip is electrically connected with a PB9 pin of the mainboard single chip microcomputer; two ends of the oscillator G1 are connected in parallel to two ends of a fourth resistor R30, one end of the fourth resistor R30 is electrically connected with an XI/CLCKIN pin of the Ethernet chip D2, and the other end of the fourth resistor R30 is electrically connected with an XO pin of the Ethernet chip; the first capacitor C6 and the second capacitor C7 are connected in series and then are respectively electrically connected with two ends of the oscillator.

In one embodiment, the sound indicating module 510 includes a buzzer BZ1, a third transistor VT1, a first inductor L10, a second inductor L6, a fifth resistor R18, a sixth resistor R20, and a seventh resistor R23; one end of a first inductor L10 is electrically connected with a PC9 pin of the key single chip microcomputer 200, the other end of the first inductor L10 is electrically connected with one end of a fifth resistor R18, the other end of the fifth resistor R18 is electrically connected with a base electrode of a third triode VT1, and a collector electrode of the third triode VT1 is electrically connected with one end of a second inductor L6; two ends of the buzzer BZ1 are electrically connected with two ends of the second inductor L6, two ends of the sixth resistor R20 are respectively electrically connected with the base electrode and the emitting electrode of the third triode VT1, one end of the seventh resistor R23 is electrically connected with the emitting electrode of the third triode VT1, and the other end of the seventh resistor R23 is grounded.

In this embodiment, after receiving the fire alarm signal, the key-press single-chip microcomputer 200 sends a PWM _ CLOSE signal to the sound indication module 510 to drive the sound indication module 510 to send out a sound alarm signal, so as to notify the fire occurrence situation of the related personnel. Specifically, the key single chip microcomputer 200 controls the on/off of the third triode VT1 and is connected with the power module 900 according to the second inductor L6, so that the second inductor L6 is charged and discharged, and the buzzer BZ1 sounds.

In one embodiment, the light indication module 500 includes a fire alarm indication module 520, a fault indication module 540, a main power operation indication module 510, a standby power operation indication module 530, and a communication indication module 5; the main electrical work indication module 510 receives the LED1 signal sent by the motherboard single-chip microcomputer 100; the fire alarm indicating module 520 receives the LED2 signal sent by the mainboard singlechip 100; the standby power work indication module 530 receives an LED3 signal sent by the motherboard single-chip microcomputer 100; the fault indication module 540 receives an LED4 signal sent by the motherboard single-chip microcomputer 100; the communication indication module 550 receives a 4G_LED signal sent by the 4G chip.

In this embodiment, a light emitting diode and a plurality of resistors are disposed in the main power indicating module 510, and after the main power indicating module 510 receives the LED1 signal of the motherboard single chip, the light emitting diode is turned from white light to green light to indicate work. Meanwhile, the specific setting modes of the fire alarm indication module 520, the standby power operation indication module 530 and the fault indication module 540 can refer to the main power operation indication module 510, and when the fire alarm indication module 520 receives an LED2 signal sent by the motherboard single-chip microcomputer, the light emitting diode in the fire alarm indication module 520 is changed from white light to red light to prompt fire alarm. When the standby power work indication module 530 receives an LE D3 signal sent by the main board single chip microcomputer, the light emitting diode in the standby power work indication module 530 is converted from white light to green light to indicate work, and when the fault indication module 540 receives an LED4 signal sent by the main board single chip microcomputer, the light emitting diode in the fault indication module 540 is converted from white light to yellow light to prompt fault, so that timely maintenance is facilitated. The communication indicating module receives a 4G_LED signal of the 4G chip, and the 4G_LED signal is transmitted to a light emitting diode in the communication indicating module 7 through an eleventh resistor R19 and a fifth triode VT2 to drive the light emitting diode to convert white light into red light for indicating communication.

In one embodiment, the system further comprises a status switching module 700; the state switching module comprises an eighth resistor R56, a ninth resistor R57, a third capacitor C35, a fourth triode Q1, a second diode VD3, a first wiring terminal XT2 and a relay K1; one end of an eighth resistor R56 is electrically connected with a PC8 pin of the key singlechip 200, the other end of the eighth resistor R56 is electrically connected with a base electrode of a fourth triode Q1, two ends of a ninth resistor R57 are respectively electrically connected with a base electrode and an emitting electrode of the fourth triode Q1, a third capacitor C35 is connected in parallel with two ends of the ninth resistor R57, and a collector electrode of the fourth triode Q1 is electrically connected with an anode of a second diode VD 3; the anode and the cathode of the second diode VD3 are both electrically connected with the relay, and both ends of the first wiring terminal XT2 are both electrically connected with the relay.

In this embodiment, the wireless fire-fighting gateway control circuit is further provided with a state switching module, and the linkage of other fire-fighting equipment can be controlled through a relay arranged in the state switching module.

In one embodiment, the system further comprises a key driving module 800; the key driving module 800 includes a switch key module 810, an up-turn key module 820, a down-turn key module 830, a mute key module 840, and a confirm key module 850; the switching KEY module 810 sends a KEY1 signal to a PB0/ADC12_ IN8 pin of the KEY singlechip; the up-turning KEY module 820 sends a KEY2 signal to a PB1/ADC12_ IN9 pin of the KEY single chip microcomputer; the KEY-down module 830 sends a KEY3 signal to the PC5/ADC1_ IN15 pin of the KEY single chip; the mute KEY module 840 sends a KEY4 signal to a PC4/ADC1_ IN14 pin of the KEY single chip microcomputer; the confirm KEY module 850 sends a KEY5 signal to the PC7/ADC1_ IN17 pin of the KEY singlechip.

In this embodiment, the switching key module 810, the flip-up key module 820, the flip-down key module 830, the mute key module 840 and the confirmation key module 850 are arranged in the same manner, and the detection purpose is achieved through the high-low level change of the IO port of the key single chip microcomputer 200. The KEY single chip microcomputer 200 respectively sends KEY1, KEY2, KEY3, KEY4 and KEY5 signals to the switching KEY module 810, the flip-up KEY module 820, the flip-down KEY module 830, the mute KEY module 840 and the confirmation KEY module 850, the level is pulled up to 3.3V through a pull-up resistor, and when a KEY is pressed down, the signal is grounded and the signal is at a low level; when the keys are loosened, the signals are high level, and therefore detection is achieved through the high-low level change of the IO port of the key single chip microcomputer.

In one embodiment, the power module 900 includes a transformer rectifier filter module 910, a 3.8V power module 930, and a 3.3V power module 940; the voltage transformation rectifying and filtering module 910 comprises a second connecting terminal XT8, a rectifier bridge U2 and a first filtering module 211; two ends of a second wiring terminal XT8 are respectively and electrically connected with an AC1 pin and an AC2 pin of a rectifier bridge U2 and are suitable for inputting 220V alternating current to the rectifier bridge U2, a V + pin and a V-pin of the rectifier bridge are respectively and electrically connected with one end of a first filtering module, and the other end of the first filtering module 211 outputs 24V direct current; the input terminals of the 3.8V power module 930 and the 3.3V power module 940 are electrically connected to the output terminal of the first filtering module 211, respectively.

In this embodiment, the 24V dc generates two divided voltages, the power chips respectively disposed in the 3.8V power module 930 and the 3.3V power module 940 convert the 24V voltage into a 3.8V voltage and a 3.3V voltage, and the power chips are A0Z1284 chip and an MP2460 chip, so as to supply power to other modules. Specifically, the 3.8V power module 930 provides a working power supply to the 4G communication module 310, and the 3.3V power module 940 provides a working power supply to the motherboard single chip microcomputer 100, the key single chip microcomputer 200, the key driving module 800, the light indication module 500, the storage module 600, the LORA communication module 400, and the cable network communication module 320.

Based on any preceding any one wireless fire control gateway control circuit, this disclosure still provides a wireless fire control gateway. Wherein, the wireless fire control gateway of this disclosed embodiment includes as any one above-mentioned wireless fire control gateway control circuit.

Having described embodiments of the present application, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims (10)

1. A wireless fire-fighting gateway control circuit is characterized by comprising a mainboard single chip microcomputer, a key single chip microcomputer, an Internet of things communication module, an LORA communication module, a sound indication module, an optical indication module, a storage module and a power supply module;

the mainboard single chip microcomputer and the key single chip microcomputer receive and send communication signals mutually;

the LORA communication module comprises a first LORA chip and a second LORA chip, the first LORA chip and the second LORA chip are communicated by adopting the same frequency, and the first LORA chip and the second LORA chip are electrically connected by an SPI interface of the mainboard single chip microcomputer;

a communication interface of the Internet of things communication module is electrically connected with a communication interface of the mainboard single chip microcomputer, wherein the Internet of things communication module comprises a 4G communication module and a wired communication module; the 4G communication module is used for sending AT command configuration parameters by the mainboard single chip microcomputer, and the wired communication module is configured and operated by the SPI communication of the mainboard single chip microcomputer;

the receiving ends of the sound indicating module and the light indicating module are electrically connected with the control end of the mainboard single chip microcomputer;

the communication interface of the storage module is respectively and electrically connected with the communication interfaces of the mainboard single chip microcomputer and the key single chip microcomputer;

the power output end of the power module is electrically connected with the mainboard single chip microcomputer, the key single chip microcomputer, the Internet of things communication module, the sound indication module, the light indication module, the LORA communication module and the power output end of the storage module.

2. The wireless fire gateway control circuit of claim 1, wherein the first LORA chip and the second LORA chip are both of LRM-470-RL22 type;

the first LORA chip receives an L1_ MOSI signal sent by the mainboard single chip microcomputer, and sends an L1_ MISO signal to the mainboard single chip microcomputer;

the second LORA chip receives an L2_ MOSI signal sent by the mainboard single chip microcomputer, and sends an L2_ MISO signal to the mainboard single chip microcomputer;

and the L1_ SCK signal and the L2_ SCK signal transmitted between the first LORA chip and the mainboard single chip microcomputer, the second LORA chip and the mainboard single chip microcomputer are both output by the mainboard single chip microcomputer and used for providing clock pulses.

3. The wireless fire gateway control circuit of claim 1, wherein the 4G communication module comprises a 4G chip, a first triode, a second triode, a first resistor, a second resistor and a SIM communication module;

an emitting electrode of the first triode is electrically connected with a MAIN _ TXD pin of the 4G chip, a base electrode of the first triode is electrically connected with one end of the first resistor, the other end of the first resistor is electrically connected with a VDD _ EXT pin of the 4G chip, and a collecting electrode of the first triode is electrically connected with a PH2 pin of the mainboard singlechip; the emitting electrode of the second triode is electrically connected with a pin of a PC13 of the mainboard singlechip, the base electrode of the second triode is electrically connected with one end of a second resistor, the other end of the second resistor is electrically connected with V _4G of the power supply module, and the base electrode of the second triode is electrically connected with a MAIN _ RXD pin of the 4G chip;

the SIM communication module comprises an SIM card seat, a first diode and a third resistor, wherein the first diode is a TVS diode;

the pin 7 of the SIM card holder is electrically connected with the pin 1 of the first diode and is suitable for transmitting an SIM _ DATA signal, one end of the third resistor is electrically connected with the pin 5 of the SIM card holder, and the other end of the third resistor is electrically connected with a USIM _ DATA pin of the 4G chip.

4. The wireless fire gateway control circuit of claim 1, wherein the wired communication module comprises an ethernet chip, an oscillator, a first capacitor, a second capacitor and a fourth resistor, wherein the ethernet chip is a W5500 chip;

an MOSI pin of the Ethernet chip is electrically connected with a PB8 pin of the mainboard single chip microcomputer, and an MSIO pin of the Ethernet chip is electrically connected with a PB9 pin of the mainboard single chip microcomputer;

two ends of the oscillator are connected in parallel to two ends of the fourth resistor, one end of the fourth resistor is electrically connected with an XI/CLCKIN pin of the Ethernet chip, and the other end of the fourth resistor is electrically connected with an XO pin of the Ethernet chip; and the first capacitor and the second capacitor are connected in series and then are respectively electrically connected with two ends of the oscillator.

5. The wireless fire gateway control circuit of claim 1, wherein the sound indication module comprises a buzzer, a third triode, a first inductor, a second inductor, a fifth resistor, a sixth resistor, and a seventh resistor;

one end of the first inductor is electrically connected with a PC9 pin of the key single chip microcomputer, the other end of the first inductor is electrically connected with one end of the fifth resistor, the other end of the fifth resistor is electrically connected with a base electrode of the third triode, and a collector electrode of the third triode is electrically connected with one end of the second inductor;

the two ends of the buzzer are electrically connected with the two ends of the second inductor, the two ends of the sixth resistor are respectively electrically connected with the base electrode and the emitting electrode of the third triode, one end of the seventh resistor is electrically connected with the emitting electrode of the third triode, and the other end of the seventh resistor is grounded.

6. The wireless fire gateway control circuit of claim 3, wherein the light indication module comprises a fire alarm indication module, a fault indication module, a main power operation indication module, a standby power operation indication module, and a communication indication module;

the main electric work indicating module receives an LED1 signal sent by the mainboard single chip microcomputer; the fire alarm indicating module receives an LED2 signal sent by the mainboard single chip microcomputer; the standby power work indication module receives an LED3 signal sent by the mainboard single chip microcomputer; the fault indication module receives an LED4 signal sent by the mainboard single chip microcomputer; and the communication indication module receives a 4G_LED signal sent by the 4G chip.

7. The wireless fire gateway control circuit of claim 1, further comprising a state switching module;

the state switching module comprises an eighth resistor, a ninth resistor, a third capacitor, a fourth triode, a second diode, a first wiring terminal and a relay;

one end of the eighth resistor is electrically connected with a PC8 pin of the key single chip microcomputer, the other end of the eighth resistor is electrically connected with a base electrode of the fourth triode, two ends of the ninth resistor are respectively electrically connected with a base electrode and an emitting electrode of the fourth triode, the third capacitor is connected in parallel with two ends of the ninth resistor, and a collector electrode of the fourth triode is electrically connected with an anode of the second diode;

and the anode and the cathode of the second diode are electrically connected with the relay, and the two ends of the first wiring terminal are electrically connected with the relay.

8. The wireless fire gateway control circuit of claim 1, further comprising a key driver module;

the key driving module comprises a switching key module, an upturning key module, a downturning key module, a mute key module and a confirmation key module;

the switching KEY module sends a KEY1 signal to a PB0/ADC12_ IN8 pin of the KEY single chip microcomputer; the upturning KEY module sends a KEY2 signal to a PB1/ADC12_ IN9 pin of the KEY single chip microcomputer; the KEY-down module sends a KEY3 signal to a PC5/ADC1_ IN15 pin of the KEY single chip microcomputer; the mute KEY module sends a KEY4 signal to a PC4/ADC1_ IN14 pin of the KEY single chip microcomputer; the KEY confirmation module sends a KEY5 signal to a PC7/AD C1_ IN17 pin of the KEY single chip microcomputer;

9. the wireless fire gateway control circuit of any one of claims 1 to 8, wherein the power module comprises a transformer rectifier filter module, a 3.8V power module, and a 3.3V power module;

the voltage transformation rectifying and filtering module comprises a second wiring terminal, a rectifying bridge and a first filtering module;

two ends of the second connecting terminal are respectively and electrically connected with the AC1 pin and the AC2 pin of the rectifier bridge and are suitable for inputting 220V alternating current to the rectifier bridge, the V + pin and the V-pin of the rectifier bridge are respectively and electrically connected with one end of the first filtering module, and the other end of the first filtering module outputs 24V direct current;

and the input ends of the 3.8V power supply module and the 3.3V power supply module are respectively electrically connected with the output end of the first filtering module.

10. A wireless fire protection gateway, comprising the wireless fire protection gateway control circuit of any one of claims 1 to 9.

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