Wireless manual fire alarm button based on 4G network communication technology

Abstract

The utility model relates to the technical field of fire alarm, in particular to a wireless manual fire alarm button based on the 4G network communication technology, which is a fire-fighting cloud platform capable of transmitting fire alarm signals without laying lines, improves the applicability of products, and improves the reliability of the products. The system comprises a main control unit, a power conversion unit, a button switch signal detection unit and a fire-fighting cloud platform communication unit. The main control unit is used for completing power-on initialization, calling the button switch signal detection unit, and calling the fire-fighting cloud platform communication unit to upload equipment real-time state signals to a fire-fighting cloud platform when the button switch state change is detected; the power supply conversion unit is connected with the lithium battery and converts the voltage into required working voltage and working current; the button switch signal detection unit is used for detecting whether a button is in a closed and broken state; and the fire-fighting cloud platform communication unit adopts 4G communication and is used for sending a communication message to a fire-fighting cloud platform at regular time or when the equipment state changes.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire alarm technical field, concretely is a wireless manual fire alarm button based on 4G network communication technology. BACKGROUND

[0002] Fire alarm button is the important component in the automatic fire alarm system, is divided into automatic and manual two trigger devices. The use scene of manual fire alarm button is extensive, is applicable to hotel, restaurant, computer room, bank, shopping mall, warehouse, museum, library and other public places, especially in the environment with higher humidity can also work stably. The traditional fire alarm system based on wired communication technology needs to lay line, is more difficult to construct in the old project upgrading, and the applicability is poor. CONTENT OF UTILITY MODEL

[0003] In order to solve above-mentioned technical problem, the utility model provides a wireless manual fire alarm button based on 4G network communication technology, its fire alarm signal transmission fire control cloud platform without laying line can improve product applicability.

[0004] Its technical scheme is such that: a wireless manual fire alarm button based on 4G network communication technology, it is characterized in that, it includes main control unit, power conversion unit, button switch signal detection unit, fire control cloud platform communication unit;

[0005] The main control unit is used to complete power-on initialization, and calls button switch signal detection unit, when detecting the button switch state change, then calls fire control cloud platform communication unit, and uploads device real-time state signal to fire control cloud platform;

[0006] The power conversion unit is connected lithium cell and converts into required working voltage and working current;

[0007] The button switch signal detection unit is used to detect whether button is closed and broken line state;

[0008] Fire control cloud platform communication unit adopts 4G communication, is used to send communication message to fire control cloud platform when timing or device state change.

[0009] Its further characterized in that, the main control unit includes MCU chip U3 of model GD32L233C8T6;

[0010] The power conversion unit includes a DC / DC control chip U2 of model SGM6623, one end of the 6-pin capacitor C3 is connected with the ground, the other end of the capacitor C3 is connected with the drain end of the MOS tube Q1, one end of the resistor R1, one end of the inductor L1, the other end of the resistor R1 is connected with the 4-pin of the DC / DC control chip U2, the gate end of the MOS tube Q1 is connected with one end of the resistor R31 and one end of the capacitor C18, the other end of the capacitor C18 is connected with the source end of the MOS tube Q1, one end of the resistor R3, Vbat, the other end of the resistor R31 and the other end of the resistor R3 are connected with the collector of the triode Q2, the base of the triode Q2 is connected with one end of the resistor R4 and one end of the resistor R6, the other end of the resistor R6 and the emitter of the triode Q2 are grounded, the other end of the resistor R4 is connected with the 25-pin of the MCU chip U3, the other end of the inductor L1 is connected with the anode of the diode D1 and the 1-pin of the DC / DC control chip U2, the 3-pin of the DC / DC control chip U2 is connected with one end of the resistor R5 and one end of the resistor R7, the other end of the resistor R7 and the 2-pin of the DC / DC control chip U2 are grounded, the 5-pin of the DC / DC control chip U2 is connected with the other end of the resistor R5, the cathode of the diode D1, one end of the capacitor E1, one end of the capacitor E2, one end of the capacitor C20, one end of the capacitor C21, one end of the capacitor C22, the cathode of the TVS tube D6, the other end of the capacitor E1, the other end of the capacitor E2, the other end of the capacitor C20, the other end of the capacitor C21, the other end of the capacitor C22, the anode of the TVS tube D6 are grounded;

[0011] The button switch signal detection unit includes a triode Q3, the base of the triode Q3 is connected with one end of the resistor R12 and one end of the resistor R14, the other end of the resistor R14 is connected with the 19-pin of the MCU chip U3, the other end of the resistor R12 is connected with one end of the resistor R9 and Vbat, the other end of the resistor R9 is connected with the emitter of the triode Q3, the collector of the triode Q3 is connected with one end of the resistor R15, one end of the resistor R30 and one end of the capacitor C6, the other end of the capacitor C6 is grounded, the other end of the resistor R15 is connected with the 20-pin of the MCU chip U3, the other end of the resistor R30 is connected with the 22-pin of the MCU chip U3, the two ends of the capacitor C6 are connected with the hand report button switch;

[0012] The communication unit of the fire-fighting cloud platform comprises a communication chip U1A of model NT26KCN, one end of the communication chip U1A is connected with one end of a capacitor C4 and one end of a resistor R2, the other end of the resistor R2 is connected with one end of a capacitor C5, one end of a TVS tube D2 and one end of an antenna RF1, the 34th pin of the communication chip U1A is connected with the other end of the capacitor C4, the other end of the capacitor C5, the other end of the TVS tube D2, the other end of the antenna RF1 and the ground, the 17th pin of the communication chip U1A of the NT26KCN is connected with the anode of a diode D5, and the 18th pin is connected with the emitter of a triode Q8, the cathode of the diode D5 is connected with the 13th pin of an MCU chip U3, the emitter of the triode Q8 is connected with one end of a resistor R29 and the 14th pin of the MCU chip U3, the other end of the resistor R29 is connected with Vbat, the base of the triode Q8 is connected with one end of a resistor R27 and one end of a capacitor C16, the other end of the resistor R27 is connected with the other end of the capacitor C16 and the 24th pin of the communication chip U1A, the 15th pin of the 27th pin of the communication chip U1A is connected with the collector of a triode Q5 and one end of a capacitor C8, and the 7th pin is connected with the collector of a triode Q6 and one end of a capacitor C9, the base of the triode Q5 is connected with one end of a resistor R19 and one end of a resistor R20, the other end of the resistor R19 is connected with the 27th pin of the MCU chip U3, the other end of the resistor R20 is connected with the emitter of the triode Q5, the other end of the capacitor C8 and the ground, the base of the triode Q6 is connected with one end of a resistor R21 and one end of a resistor R22, the other end of the resistor R21 is connected with the 30th pin of the MCU chip U3, and the other end of the resistor R22 is connected with the emitter of the triode Q6, the other end of the capacitor C9 and the ground.

[0013] After the utility model is used, through independent power supply of lithium battery, it is not necessary to lay communication line, as long as there is mobile operator 4G signal coverage place, fire alarm signal transmission fire-fighting cloud platform in real time is available in wireless communication environment, improve the product's applicability. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is principle block diagram of the utility model;

[0015] Figure 2 It is principle diagram of main control unit circuit;

[0016] Figure 3 It is principle diagram of button switch signal detection unit circuit;

[0017] Figure 4 It is principle diagram of fire-fighting cloud platform communication unit circuit;

[0018] Figure 5 It is principle diagram of power conversion unit circuit;

[0019] Figure 6 The main control program flow chart of the utility model;

[0020] Figure 7 The initialization flow chart of the utility model;

[0021] Figure 8 The button switch state detection flow chart of the utility model;

[0022] Figure 9 The communication flow chart of the utility model and the fire-fighting cloud platform. DETAILED DESCRIPTION

[0023] As shown in Figure 1 Fig. 1, a wireless manual fire alarm button based on 4G network communication technology comprises a main control unit, a power conversion unit, a button switch signal detection unit and a fire-fighting cloud platform communication unit.

[0024] As shown in Figure 2 The main control unit comprises a 32-bit low-power MCU chip U3 of GD32L233C8T6 type, which is internally integrated with 64KB FLASH program space and 16KB data RAM space, and meets the needs of low-power operation and high-performance data processing of the device, and is connected with three indicator lights V1, V2 and V3, which correspond to the running indicator light, the alarm indicator light and the opening indicator light respectively.

[0025] As shown in Figure 3 The button switch signal detection unit comprises a triode Q3, one end of the base of the triode Q3 is connected with one end of the resistor R12 and one end of the resistor R14, the other end of the resistor R14 is connected with the pin 19 of the MCU chip U3, the other end of the resistor R12 is connected with one end of the resistor R9 and Vbat, the other end of the resistor R9 is connected with the emitter of the triode Q3, the collector of the triode Q3 is connected with one end of the resistor R15, one end of the resistor R30 and one end of the capacitor C6, the other end of the capacitor C6 is grounded, the other end of the resistor R15 is connected with the pin 20 of the MCU chip U3, the other end of the resistor R30 is connected with the pin 22 of the MCU chip U3, and the two ends of the capacitor C6 are connected with the manual reporting button switch; the pins 20 and 22 of the MCU chip U3 detect whether the button is closed and disconnected and other states, and the indicator light in the manual reporting button switch is controlled to be lighted by the triode Q3.

[0026] As shown in Figure 4As shown, the fire cloud platform communication unit includes a communication chip U1A of model NT26KCN, the 35-pin of the communication chip U1A is connected with one end of the capacitor C4 and one end of the resistor R2, the other end of the resistor R2 is connected with one end of the capacitor C5, one end of the TVS tube D2 and one end of the antenna RF1, the 34-pin of the communication chip U1A is connected with the other end of the capacitor C4, the other end of the capacitor C5, the other end of the TVS tube D2, the other end of the antenna RF1 and grounded, the 17-pin of the communication chip U1A of the NT26KCN is connected with the anode of the diode D5, the 18-pin is connected with the emitter of the triode Q8, the cathode of the diode D5 is connected with the 13-pin of the MCU chip U3, the emitter of the triode Q8 is connected with one end of the resistor R29 and the 14-pin of the MCU chip U3, the other end of the resistor R29 is connected with Vbat, the base of the triode Q8 is connected with one end of the resistor R27 and one end of the capacitor C16, the other end of the resistor R27 is connected with the other end of the capacitor C16 and the 24-pin of the communication chip U1A, the 15-pin of the 27 of the communication chip U1A is connected with the collector of the triode Q5 and one end of the capacitor C8, the 7-pin is connected with the collector of the triode Q6 and one end of the capacitor C9, the base of the triode Q5 is connected with one end of the resistor R19 and one end of the resistor R20, the other end of the resistor R19 is connected with the 27-pin of the MCU chip U3, the other end of the resistor R20 is connected with the emitter of the triode Q5 and the other end of the capacitor C8 and grounded, the base of the triode Q6 is connected with one end of the resistor R21 and one end of the resistor R22, the other end of the resistor R21 is connected with the 30-pin of the MCU chip U3, the other end of the resistor R22 is connected with the emitter of the triode Q6 and the other end of the capacitor C9 and grounded; the communication chip U1A of the Yilida 4G communication module NT26KCN is the core unit. The module is a 4G full-network module, adopts CAT.1 communication mode, has the characteristics of fast networking speed, low communication rate and low power consumption, meets the design requirements of fast response of button start and long battery standby time, realizes the reset control of the MCU on the 4G module through the triode Q5 controlling the reset pin of the 4G module; realizes the on / off control of the MCU on the 4G module through the triode Q6 controlling the start pin of the 4G module; realizes the interface level matching through the triode Q8 and the diode D5 connecting the UART communication interface pin of the MCU and the 4G module.

[0027] See Figure 5As shown, the power supply unit includes a DC / DC control chip U2 of model SGM6623, one end of the 6-pin capacitor C3 of the DC / DC control chip U2 is connected with the ground, the other end of the capacitor C3 is connected with the drain end of the MOS tube Q1, one end of the resistor R1 is connected with the inductor L1, the other end of the resistor R1 is connected with the 4-pin of the DC / DC control chip U2, the gate end of the MOS tube Q1 is connected with one end of the resistor R31 and one end of the capacitor C18, the other end of the capacitor C18 is connected with the source end of the MOS tube Q1, one end of the resistor R3 and Vbat, the other end of the resistor R31 and the other end of the resistor R3 are connected with the collector of the triode Q2, one end of the resistor R4 and one end of the resistor R6 are connected with the base of the triode Q2, the other end of the resistor R6 and the emitter of the triode Q2 are grounded, the other end of the resistor R4 is connected with the 25-pin of the MCU chip U3, the other end of the inductor L1 is connected with the anode of the diode D1 and the 1-pin of the DC / DC control chip U2, one end of the resistor R5 and one end of the resistor R7 are connected with the 3-pin of the DC / DC control chip U2, the other end of the resistor R7 and the 2-pin of the DC / DC control chip U2 are grounded, the 5-pin of the DC / DC control chip U2 is connected with the other end of the resistor R5, the cathode of the diode D1, one end of the capacitor E1, one end of the capacitor E2, one end of the capacitor C20, one end of the capacitor C21, one end of the capacitor C22 and the cathode of the TVS tube D6, the other end of the capacitor E1, the other end of the capacitor E2, the other end of the capacitor C20, the other end of the capacitor C21, the other end of the capacitor C22 and the anode of the TVS tube D6 are grounded, the DC / DC control chip SGM6623 of Shengbang Micro is used as the core unit, and the function is to convert the 3V lithium battery input voltage into the working voltage and working current required by the 4G module, the MOS tube Q1 is used for controlling the lithium battery voltage input, the input is cut off in standby mode, and the device power consumption is further reduced.

[0028] The alarm button of the utility model adopts lithium battery power supply, is in low power consumption operation mode under monitoring state, and detects the button switch state in real time;When it is detected that the button switch is pressed, an alarm signal is immediately sent to the fire cloud platform.

[0029] See Figure 6 As shown, the main control program in the MCU chip, the main task is to complete the power-on initialization, and call the button switch signal detection unit, when the button switch state change is detected, the fire cloud platform communication unit is called again, and the device real-time state signal is uploaded to the platform.

[0030] See Figure 7 As shown, the initialization module of the MCU chip, the main task is to initialize the device after power-on and reset;Mainly including serial port setting, 4G module setting, timer setting and interrupt setting.

[0031] See Figure 8The button switch signal detection state detection, as shown, is mainly used for detecting the real-time state signal of the button switch and updating the state mark when there is a change.

[0032] See Figure 9 As shown, the communication with the fire cloud platform is mainly used for sending communication messages to the platform through the 4G module at a regular time or when the device state changes.

Claims

1. A wireless manual fire alarm button based on 4G network communication technology, characterized in that, It includes a main control unit, a power conversion unit, a push-button switch signal detection unit, and a fire cloud platform communication unit; The main control unit is used to complete the power-on initialization and call the button switch signal detection unit. When the button switch state changes, it calls the communication unit with the fire cloud platform to upload the real-time status signal of the equipment to the fire cloud platform. The power conversion unit is connected to the lithium battery and converts it to the required operating voltage and current. The push-button switch signal detection unit is used to detect whether the button is closed and whether the wire is disconnected. The fire protection cloud platform communication unit uses 4G communication to send communication messages to the fire protection cloud platform at regular intervals or when the equipment status changes.

2. The wireless manual fire alarm button based on 4G network communication technology according to claim 1, characterized in that, The main control unit includes an MCU chip U3 with model number GD32L233C8T6.

3. A wireless manual fire alarm button based on 4G network communication technology according to claim 2, characterized in that, The power conversion unit includes a DC / DC control chip U2 of model SGM6623. Pin 6 of the DC / DC control chip U2 is connected to one end of capacitor C3 and ground. The other end of capacitor C3 is connected to the drain of MOSFET Q1, one end of resistor R1, and one end of inductor L1. The other end of resistor R1 is connected to pin 4 of the DC / DC control chip U2. The gate of MOSFET Q1 is connected to one end of resistor R31 and one end of capacitor C18. The other end of capacitor C18 is connected to the source of MOSFET Q1, one end of resistor R3, and Vbat. The other ends of resistor R31 and R3 are connected to the collector of transistor Q2. The base of transistor Q2 is connected to one end of resistor R4 and one end of resistor R6. The other end of resistor R6 and the emitter of transistor Q2 are both connected to the base of transistor Q2. The circuit is grounded. The other end of resistor R4 is connected to pin 25 of MCU chip U3. The other end of inductor L1 is connected to the anode of diode D1 and pin 1 of DC / DC control chip U2. Pin 3 of DC / DC control chip U2 is connected to one end of resistor R5 and one end of resistor R7. The other end of resistor R7 and pin 2 of DC / DC control chip U2 are both grounded. Pin 5 of DC / DC control chip U2 is connected to the other end of resistor R5, the cathode of diode D1, one end of capacitor E1, one end of capacitor E2, one end of capacitor C20, one end of capacitor C21, one end of capacitor C22, and the cathode of TVS diode D6. The other ends of capacitors E1, E2, C20, C21, and C22, and the anode of TVS diode D6 are all grounded.

4. A wireless manual fire alarm button based on 4G network communication technology according to claim 2, characterized in that, The push-button switch signal detection unit includes a transistor Q3. The base of transistor Q3 is connected to one end of resistor R12 and one end of resistor R14. The other end of resistor R14 is connected to pin 19 of MCU chip U3. The other end of resistor R12 is connected to one end of resistor R9 and Vbat. The other end of resistor R9 is connected to the emitter of transistor Q3. The collector of transistor Q3 is connected to one end of resistor R15, one end of resistor R30, and one end of capacitor C6. The other end of capacitor C6 is grounded. The other end of resistor R15 is connected to pin 20 of MCU chip U3. The other end of resistor R30 is connected to pin 22 of MCU chip U3. The two ends of capacitor C6 are connected to the manual push-button switch.

5. A wireless manual fire alarm button based on 4G network communication technology according to claim 2, characterized in that, The fire protection cloud platform communication unit includes a communication chip U1A of model NT26KCN. Pin 35 of the communication chip U1A is connected to one end of capacitor C4 and one end of resistor R2. The other end of resistor R2 is connected to one end of capacitor C5, one end of TVS diode D2, and one end of antenna RF1. Pin 34 of the communication chip U1A is connected to the other ends of capacitor C4, capacitor C5, TVS diode D2, and antenna RF1, and is grounded. Pin 17 of the NT26KCN communication chip U1A is connected to the anode of diode D5, and pin 18 is connected to the emitter of transistor Q8. The cathode of diode D5 is connected to pin 13 of the MCU chip U3. The emitter of transistor Q8 is connected to one end of resistor R29 and pin 14 of the MCU chip U3. The other end of resistor R29 is connected to Vbat, and the base of transistor Q8 is... Connect one end of resistor R27 and one end of capacitor C16. Connect the other end of resistor R27 to the other end of capacitor C16 and pin 24 of communication chip U1A. Connect pin 15 of communication chip U1A to the collector of transistor Q5 and one end of capacitor C8. Connect pin 7 of communication chip U1A to the collector of transistor Q6 and one end of capacitor C9. Connect the base of transistor Q5 to one end of resistor R19 and one end of resistor R20. Connect the other end of resistor R19 to pin 27 of MCU chip U3. Connect the other end of resistor R20 to the emitter of transistor Q5, the other end of capacitor C8, and ground. Connect the base of transistor Q6 to one end of resistor R21 and one end of resistor R22. Connect the other end of resistor R21 to pin 30 of MCU chip U3. Connect the other end of resistor R22 to the emitter of transistor Q6, the other end of capacitor C9, and ground.

Images