Smoke alarm based on Beidou satellite positioning function

Abstract

The utility model provides a smoke alarm based on a Beidou satellite positioning function, which comprises a shell, an environment monitoring module, a positioning communication module, a main control module and a voltage division circuit are arranged in the shell, the environment monitoring module is electrically connected with the main control module through the voltage division circuit, and the positioning communication module is electrically connected with the main control module through the voltage division circuit. The wireless communication module is used for transmitting the collected surrounding environment parameters to the main control module for data processing, and the main control module is electrically connected with the positioning communication module and used for controlling the positioning communication module to send the positioning information of the fire position to the outside; the smoke alarm uses a smoke sensing unit and a temperature sensing unit in the environment monitoring module to detect smoke concentration and current temperature information, uses a positioning unit in the positioning communication module to obtain fire position information through a Beidou satellite, converts the position information into a link string, and stores the link string in the communication unit to wait for triggering. When a fire breaks out, the communication unit sends the address information and the link string to the outside in the form of a fire short message, and dials a fire alarm call at the same time.

Description

Technical Field

[0001] The utility model belongs to the technical field of smoke alarm equipment, and in particular relates to a smoke alarm based on Beidou satellite positioning function. Background Art

[0002] A smoke alarm is a device used to detect the smoke concentration in indoor air. Once the detected smoke concentration exceeds a preset threshold, an alarm will be sounded to alert people of possible fire hazards.

[0003] As a fire prevention device, smoke alarm has the characteristics of simple structure, economical and practical, and is therefore widely used in life. However, with the continuous acceleration of urbanization, shopping malls, industrial parks and residential areas are occupying larger and larger areas, and the internal design and road design are becoming more and more complicated. When a fire occurs, the difficulty and time of rescue also increase accordingly. However, most of the existing smoke alarms do not have a positioning function or the positioning is inaccurate. When a fire occurs, the positioning information cannot be accurately conveyed to the firefighters in time, so that the route to the fire scene is not optimal, delaying rescue, and not meeting the fire warning requirements under the new situation. Therefore, there is a need for a smoke alarm with a positioning function and accuracy. Utility Model Content

[0004] In order to solve the shortcomings and deficiencies of the prior art, a smoke alarm based on Beidou satellite positioning function is provided, thereby solving the problem that the existing smoke alarm has no positioning function or the positioning information is inaccurate.

[0005] In order to achieve the purpose of the utility model, a smoke alarm based on Beidou satellite positioning function is provided, including a shell, in which an environmental monitoring module, a positioning communication module, a main control module and a voltage divider circuit are arranged. The environmental monitoring module is electrically connected to the main control module through the voltage divider circuit, and is used to transmit the collected surrounding environmental parameters to the main control module for data processing. The main control module is electrically connected to the positioning communication module, and is used to control the positioning communication module to send the positioning information of the fire location to the outside world.

[0006] As a further improvement of the above scheme, the environmental monitoring module includes a smoke sensing unit and a temperature sensing unit, which are used to obtain the smoke concentration signal and temperature signal of the surrounding environment for monitoring; the smoke sensing unit includes a chip U7 and resistors R13 and R16, pin 1 of the chip U7 is connected to a 5V power supply, pin 3 is connected to one end of the resistor R13, pin 4 is grounded, the other end of the resistor R13 is connected to one end of the resistor R16 and ADC, and the other end of the resistor R16 is grounded; the temperature sensing unit includes a chip U5, pin 1 of the chip U5 is grounded, pin 2 is connected to DQ, and pin 3 is connected to the VCC3.3V power supply.

[0007] As a further improvement of the above solution, the positioning and communication module includes a positioning unit and a communication unit, which are used to locate the fire location and send the positioning information to the outside world.

[0008] As a further improvement of the above scheme, the positioning unit includes a chip U6, a socket H1, resistors R1-R5, R7-R9, R11-R12, capacitors C7-C14, a transistor Q1, antennas L1-L2, L4, an inductor L3 and a light-emitting diode LED1. Pins 2, 1, 54, and 53 of the chip U6 are respectively connected to pins 1-4 of the socket H1, pin 5 is connected to the collector of the transistor Q1, pin 15 is connected to one end of the resistor R12 and one end of the capacitor C13, and pins 16, 18-21 are respectively connected to GD, SIM_VCC, and SIM_CL K, SIM_RST, SIM_DATA, pins 22 and 24 are connected to GNSSTXD, pins 23 and 25 are connected, pin 26 is connected to VCC3.3V power supply and one end of capacitors C11 and C14, pins 27 and 31 are connected to the other end of capacitors C11 and C14 and then grounded, pin 32 is connected to one end of resistor R9 and one end of capacitor C9, pin 33 is connected to one end of resistors R5 and R7, pin 34 is connected to one end of resistor R4, pin 37 is connected to PA4, pin 41 is connected to one end of resistor R2 and one end of capacitor C7, pin 47 is connected to One end of the resistor R1 is connected, pin 51 is connected to the VCC_4V power supply, and pins 14, 40, 42, 44-45, 48-49 are all grounded; the base of the transistor Q1 is connected to one end of the resistors R3 and R8, the emitter is connected to the other end of the resistor R8 and then grounded, and the other end of the resistor R3 is connected to PA5; the other end of the resistor R12 is connected to one end of the inductor L3, one end of the capacitor C12 and one end of the antenna L4, the other end of the inductor L3 is connected to one end of the resistor R11, the other end of the resistor R11 is connected to the VCC3.3V power supply, and the capacitor C12- C13 and the other end of the antenna L4 are both grounded; the other end of the resistor R9 is connected to one end of the capacitor C10 and one end of the antenna L2, and the other ends of the capacitors C9-C10 and the antenna L2 are grounded; the other end of the resistor R7 is grounded, the other end of the resistor R5 is connected to TXD1, and the resistor R4 is connected to RDX1; the other end of the resistor R2 is connected to one end of the capacitor C8 and one end of the antenna L1, and the other ends of the capacitors C7-C8 and the antenna L1 are both grounded; the other end of the resistor R1 is connected to the positive electrode of the light-emitting diode LED1, and the negative electrode of the light-emitting diode LED1 is grounded.

[0009] As a further improvement of the above scheme, the communication unit includes a chip U4, resistors R14-R15, R17-R18 and capacitors C15-C18, pin 1 of the chip U4 is connected to one end of the resistor R15 and SIM_VCC, pin 2 is connected to one end of the resistor R17 and one end of the capacitor C17, pin 3 is connected to one end of the resistor R18 and one end of the capacitor C18, pin 4 is connected to one end of the capacitor C15 and GD, and pin 6 is connected to DATA; the other end of the resistor R15 is connected to one end of the capacitor C16, one end of the resistor R14 and DATA, the other end of the resistor R14 is connected to SIM_DATA, the other ends of the resistors R17-R18 are respectively connected to SIM_RST and SIM_CLK, the other ends of the capacitors C16-C18 are grounded, and the other end of the capacitor C15 is connected to SIM_VCC.

[0010] As a further improvement of the above scheme, the main control module includes chips U1-U2, crystal oscillator X1, capacitors C1-C6, socket H2 and resistors R6, R10; pin 1 of the chip U1 is connected to the VCC3.3V power supply, pin 5 is connected to one end of the crystal oscillator X1 and one end of the capacitor C2, pin 6 is connected to the other end of the crystal oscillator X1 and one end of the capacitor C3, pin 8 is connected to one end of the capacitor C4 and then grounded, pin 9 is connected to the other end of the capacitor C4 and the VCC3.3V power supply, pin 23 is connected to one end of the capacitor C6 and then grounded, pin 24 is connected to the other end of the capacitor C6 and the VCC3.3V power supply, pin 35 is connected to one end of the capacitor C5 and then grounded, pin 36 is connected to the other end of the capacitor C5 and the VCC3.3V power supply, and pin 47 is connected to one end of the capacitor C1 The pin 48 is connected to the other end of the capacitor C1 and the VCC3.3V power supply, and the pins 7, 11, 20, 30, 31, 34, 37, 43, and 44 are connected to RST, ADC, BOOT1, TXD1, RXD1, SWDIO, SWCLK, DO, and BOOT0 respectively. The other ends of the capacitors C2-C3 are all grounded; the pins 1 and 2 of the socket H2 are connected to RXD1 and TXD1 respectively; one end of the resistors R6 and R10 are connected to BOOT0 and BOOT1 respectively, and the other ends are all grounded; the pins 1-3 of the chip U2 are connected to the 5V power supply, VCC4V power supply, and VCC3.3V power supply respectively, and the pin 4 is grounded. The pins 5-7 are connected to SWCLK, SWDIO, and RST respectively.

[0011] The beneficial effects of the utility model are:

[0012] Compared with the prior art, the smoke alarm based on Beidou satellite positioning function provided by the utility model utilizes the smoke sensing unit and temperature sensing unit in the environmental monitoring module to detect the smoke concentration and current temperature information, and utilizes the positioning unit in the positioning communication module to obtain the fire location information through the Beidou satellite, and converts the location information into a link string and stores it in the communication unit waiting for triggering. Subsequently, when a sudden fire occurs, the communication unit sends the address information and the link string to the outside world in the form of a fire information text message, and at the same time dials the fire alarm phone. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the overall connection schematic diagram of the utility model;

[0014] Figure 2 This is a circuit connection diagram of the smoke sensing unit in the present utility model;

[0015] Figure 3 This is a circuit connection diagram of the temperature sensing unit in the utility model;

[0016] Figure 4 It is a circuit connection diagram of the positioning unit in the utility model;

[0017] Figure 5 It is a circuit connection diagram of the communication unit in the utility model;

[0018] Figure 6 This is a circuit connection diagram of the main control module in the utility model. DETAILED DESCRIPTION

[0019] The following is a further detailed description of the specific implementation of the utility model in conjunction with the accompanying drawings:

[0020] according to Figure 1 As shown, the utility model provides a smoke alarm based on Beidou satellite positioning function, including a shell, in which an environment monitoring module, a positioning communication module, a main control module and a voltage divider circuit are arranged. The environment monitoring module is electrically connected to the main control module through the voltage divider circuit, and is used to transmit the collected surrounding environment parameters to the main control module for data processing. The main control module is electrically connected to the positioning communication module, and is used to control the positioning communication module to send the positioning information of the fire location to the outside world. The environment monitoring module includes a smoke sensing unit and a temperature sensing unit, which are used to obtain the smoke concentration signal and temperature signal of the surrounding environment for monitoring; the positioning communication module includes a positioning unit and a communication unit, which are used to locate the fire location and send the positioning information to the outside world.

[0021] Depend on Figure 2It can be seen that the smoke sensing unit includes a chip U7 and resistors R13 and R16. Pin 1 of the chip U7 is connected to a 5V power supply, pin 3 is connected to one end of the resistor R13, and pin 4 is grounded. The other end of the resistor R13 is connected to one end of the resistor R16 and the ADC, and the other end of the resistor R16 is grounded. Figure 3 As shown, the temperature sensing unit includes a chip U5. Pin 1 of the chip U5 is grounded, pin 2 is connected to DQ, and pin 3 is connected to VCC 3.3V power supply.

[0022] Depend on Figure 4 It can be seen that the positioning unit includes chip U6, socket H1, resistors R1-R5, R7-R9, R11-R12, capacitors C7-C14, transistor Q1, antennas L1-L2, L4, inductor L3 and light-emitting diode LED1. Pins 2, 1, 54, and 53 of chip U6 are respectively connected to pins 1-4 of socket H1, pin 5 is connected to the collector of transistor Q1, pin 15 is connected to one end of resistor R12 and one end of capacitor C13, pins 16, 18-21 are respectively connected to GD, SIM_VCC, SIM_CLK, SIM_RST, and SIM_DATA, pins 22 and 24 are connected to GNSSTXD, pins 23 and 25 are connected, and pin 26 is connected to VCC3.3V power supply and capacitors C11 and C1 4, pins 27 and 31 are connected to the other ends of capacitors C11 and C14 and then grounded, pin 32 is connected to one end of resistor R9 and one end of capacitor C9, pin 33 is connected to one end of resistors R5 and R7, pin 34 is connected to one end of resistor R4, pin 37 is connected to PA4, pin 41 is connected to one end of resistor R2 and one end of capacitor C7, pin 47 is connected to one end of resistor R1, pin 51 is connected to VCC_4V power supply, and pins 14, 40, 42, 44-45, 48-49 are all grounded. The base of the transistor Q1 is connected to one end of resistors R3 and R8, and the emitter is connected to the other end of resistor R8 and then grounded. The other end of resistor R3 is connected to PA5. The other end of resistor R12 is connected to one end of inductor L3, one end of capacitor C12 and one end of antenna L4. The other end of inductor L3 is connected to one end of resistor R11. The other end of resistor R11 is connected to the VCC 3.3V power supply. The other ends of capacitors C12-C13 and antenna L4 are grounded. The other end of resistor R9 is connected to one end of capacitor C10 and one end of antenna L2, and the other ends of capacitors C9-C10 and antenna L2 are grounded. The other end of resistor R7 is grounded. The other end of resistor R5 is connected to TXD1. Resistor R4 is connected to RDX1. The other end of resistor R2 is connected to one end of capacitor C8 and one end of antenna L1. The other ends of capacitors C7-C8 and antenna L1 are grounded. The other end of resistor R1 is connected to the positive electrode of light-emitting diode LED1. The negative electrode of light-emitting diode LED1 is grounded.

[0023] Depend on Figure 5 It can be seen that the communication unit includes a chip U4, resistors R14-R15, R17-R18 and capacitors C15-C18. Pin 1 of chip U4 is connected to one end of resistor R15 and SIM_VCC, pin 2 is connected to one end of resistor R17 and one end of capacitor C17, pin 3 is connected to one end of resistor R18 and one end of capacitor C18, pin 4 is connected to one end of capacitor C15 and GD, and pin 6 is connected to DATA. The other end of resistor R15 is connected to one end of capacitor C16, one end of resistor R14 and DATA. The other end of resistor R14 is connected to SIM_DATA. The other ends of resistors R17-R18 are connected to SIM_RST and SIM_CLK respectively. The other ends of capacitors C16-C18 are all grounded. The other end of capacitor C15 is connected to SIM_VCC.

[0024] Depend on Figure 6 It can be seen that the main control module includes chips U1-U2, crystal oscillator X1, capacitors C1-C6, socket H2 and resistors R6 and R10. Pin 1 of chip U1 is connected to the VCC3.3V power supply, pin 5 is connected to one end of crystal oscillator X1 and one end of capacitor C2, pin 6 is connected to the other end of crystal oscillator X1 and one end of capacitor C3, pin 8 is connected to one end of capacitor C4 and then grounded, pin 9 is connected to the other end of capacitor C4 and the VCC3.3V power supply, pin 23 is connected to one end of capacitor C6 and then grounded, pin 24 is connected to the other end of capacitor C6 and the VCC3.3V power supply, pin 35 is connected to one end of capacitor C5 and then grounded, pin 36 is connected to the other end of capacitor C5 and the VCC3.3V power supply, pin 47 is connected to one end of capacitor C1 and then grounded, pin 48 is connected to the other end of capacitor C1 and the VCC3.3V power supply, and pins 7, 11, 20, 30, 31, 34, 37, 43, and 44 are connected to RST, ADC, BOOT1, TXD1, RXD1, SWDIO, SWCLK, DO, and BOOT0 respectively. The other ends of capacitors C2-C3 are grounded. Pins 1 and 2 of socket H2 are connected to RXD1 and TXD1 respectively. One end of resistors R6 and R10 are connected to BOOT0 and BOOT1 respectively, and the other ends are grounded. Pins 1-3 of chip U2 are connected to 5V power supply, VCC4V power supply, and VCC3.3V power supply respectively, pin 4 is grounded, and pins 5-7 are connected to SWCLK, SWDIO, and RST respectively.

[0025] The utility model provides a smoke alarm based on Beidou satellite positioning function. The smoke sensing unit and the temperature sensing unit work together to obtain information data, and then transmit the data to the main control unit. At the same time, the positioning unit is started and transmits the information to the main control unit. The positioning data is converted into a positioning link and transmitted to the communication unit to wait for triggering. When a fire breaks out, the smoke sensing unit and the temperature sensing unit transmit the data to the main control unit. After determining that there is a fire, the main control unit controls the communication unit to send a fire SMS and make a call, wherein the fire SMS includes address information and a positioning link string.

[0026] In the embodiment, the smoke sensing unit may adopt an MQ-2 smoke sensor, and the temperature sensing unit may adopt a DS18B20 temperature sensor. When detecting a fire environment, the smoke sensing unit converts the fire signal into an analog signal, processes the analog signal through a voltage divider circuit, and transmits the processed signal to the main control unit. After A / D conversion, the analog signal is converted into a recognizable and processable digital signal and transmitted to the main control unit for fire determination.

[0027] In the embodiment, the positioning unit can use the GNSS algorithm to analyze the positioning data of the Beidou satellite; the communication unit can use the GSM / GPRS network to realize the long-distance wireless communication between the fire monitoring terminal and the alarm. The smoke alarm provided by the utility model locates the fire location at the first time of activation, and after the positioning signal of the location is collected, the positioning data is analyzed by the GNSS algorithm, and then the analyzed data is transmitted to the main control unit, and the data is converted into a positioning link string, and finally the short message information is stored in the communication unit and waits for triggering.

[0028] The above embodiments are not limited to the technical solutions of the embodiments themselves, and the embodiments can be combined with each other to form new embodiments. The above embodiments are only used to illustrate the technical solutions of the utility model and are not intended to limit them. Any modification or equivalent replacement that does not deviate from the spirit and scope of the utility model shall be included in the scope of the technical solution of the utility model.

Claims

1. A smoke alarm based on Beidou satellite positioning function, comprising a housing, characterized in that: An environment monitoring module, a positioning communication module, a main control module and a voltage divider circuit are arranged in the shell. The environment monitoring module is electrically connected to the main control module through the voltage divider circuit, and is used to transmit the collected surrounding environment parameters to the main control module for data processing. The main control module is electrically connected to the positioning communication module, and is used to control the positioning communication module to send the positioning information of the fire location to the outside world; the positioning communication module includes a positioning unit and a communication unit, which are used to locate the fire location and send the positioning information to the outside world; the positioning unit includes a chip U6, a socket H1, resistors R1-R5, R7-R9, R11-R12, capacitors C7-C14, transistor Q1, antennas L1-L2, L4, inductor L3 and light-emitting diode LED1, and pins 2, 1, 54, and 53 of the chip U6 are respectively connected to pins 1-4 of the socket H1, pin 5 is connected to the collector of the transistor Q1, and pin 15 is connected to One end of the resistor R12 and one end of the capacitor C13 are connected, pins 16, 18-21 are connected to GD, SIM_VCC, SIM_CLK, SIM_RST, and SIM_DATA respectively, pins 22 and 24 are connected to GNSSTXD, pins 23 and 25 are connected, pin 26 is connected to the VCC3.3V power supply and one end of the capacitors C11 and C14, pins 27 and 31 are connected to the other end of the capacitors C11 and C14 and then grounded, pin 32 is connected to one end of the resistor R9 and one end of the capacitor C9, pin 33 is connected to one end of the resistors R5 and R7, pin 34 is connected to one end of the resistor R4, pin 37 is connected to PA4, pin 41 is connected to one end of the resistor R2 and one end of the capacitor C7, pin 47 is connected to one end of the resistor R1, pin 51 is connected to the VCC_4V power supply, and pins 14, 40, 42, 44-45, 48-49 are all grounded; The base of the transistor Q1 is connected to one end of the resistors R3 and R8, the emitter is connected to the other end of the resistor R8 and then grounded, the other end of the resistor R3 is connected to PA5; the other end of the resistor R12 is connected to one end of the inductor L3, one end of the capacitor C12 and one end of the antenna L4, the other end of the inductor L3 is connected to one end of the resistor R11, the other end of the resistor R11 is connected to the VCC3.3V power supply, the other ends of the capacitors C12-C13 and the antenna L4 are all grounded; the other end of the resistor R9 It is connected to one end of the capacitor C10 and one end of the antenna L2, and the other ends of the capacitors C9-C10 and the antenna L2 are grounded; the other end of the resistor R7 is grounded, the other end of the resistor R5 is connected to TXD1, and the resistor R4 is connected to RDX1; the other end of the resistor R2 is connected to one end of the capacitor C8 and one end of the antenna L1, and the other ends of the capacitors C7-C8 and the antenna L1 are all grounded; the other end of the resistor R1 is connected to the positive electrode of the light-emitting diode LED1, and the negative electrode of the light-emitting diode LED1 is grounded.

2. The smoke alarm based on Beidou satellite positioning function according to claim 1, characterized in that: The environmental monitoring module includes a smoke sensing unit and a temperature sensing unit, which are used to obtain the smoke concentration signal and temperature signal of the surrounding environment for monitoring; the smoke sensing unit includes a chip U7 and resistors R13 and R16, pin 1 of the chip U7 is connected to a 5V power supply, pin 3 is connected to one end of the resistor R13, pin 4 is grounded, the other end of the resistor R13 is connected to one end of the resistor R16 and ADC, and the other end of the resistor R16 is grounded; the temperature sensing unit includes a chip U5, pin 1 of the chip U5 is grounded, pin 2 is connected to DQ, and pin 3 is connected to VCC3.3V power supply.

3. The smoke alarm based on Beidou satellite positioning function according to claim 1, characterized in that: The communication unit includes a chip U4, resistors R14-R15, R17-R18 and capacitors C15-C18. Pin 1 of the chip U4 is connected to one end of the resistor R15 and SIM_VCC, pin 2 is connected to one end of the resistor R17 and one end of the capacitor C17, pin 3 is connected to one end of the resistor R18 and one end of the capacitor C18, pin 4 is connected to one end of the capacitor C15 and GD, and pin 6 is connected to DATA; the other end of the resistor R15 is connected to one end of the capacitor C16, one end of the resistor R14 and DATA, the other end of the resistor R14 is connected to SIM_DATA, the other ends of the resistors R17-R18 are respectively connected to SIM_RST and SIM_CLK, the other ends of the capacitors C16-C18 are grounded, and the other end of the capacitor C15 is connected to SIM_VCC.

4. The smoke alarm based on Beidou satellite positioning function according to claim 1, characterized in that: The main control module includes chips U1-U2, crystal oscillator X1, capacitors C1-C6, socket H2 and resistors R6, R10; Pin 1 of the chip U1 is connected to the VCC3.3V power supply, Pin 5 is connected to one end of the crystal oscillator X1 and one end of the capacitor C2, Pin 6 is connected to the other end of the crystal oscillator X1 and one end of the capacitor C3, Pin 8 is connected to one end of the capacitor C4 and then grounded, Pin 9 is connected to the other end of the capacitor C4 and the VCC3.3V power supply, Pin 23 is connected to one end of the capacitor C6 and then grounded, Pin 24 is connected to the other end of the capacitor C6 and the VCC3.3V power supply, Pin 35 is connected to one end of the capacitor C5 and then grounded, Pin 36 is connected to the other end of the capacitor C5 and the VCC3.3V power supply, Pin 47 is connected to one end of the capacitor C1 and then grounded, Pin 4 8 is connected to the other end of the capacitor C1 and the VCC3.3V power supply, pins 7, 11, 20, 30, 31, 34, 37, 43, and 44 are connected to RST, ADC, BOOT1, TXD1, RXD1, SWDIO, SWCLK, DO, and BOOT0 respectively, and the other ends of the capacitors C2-C3 are grounded; pins 1 and 2 of the socket H2 are connected to RXD1 and TXD1 respectively; one ends of the resistors R6 and R10 are connected to BOOT0 and BOOT1 respectively, and the other ends are grounded; pins 1-3 of the chip U2 are connected to the 5V power supply, VCC4V power supply, and VCC3.3V power supply respectively, pin 4 is grounded, and pins 5-7 are connected to SWCLK, SWDIO, and RST respectively.

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