CN209562577U - A kind of fire-alarm gateway - Google Patents

Abstract

The utility model discloses a fire alarm gateway, comprising an AC-DC power supply module, a lithium battery charging management module, a LORA communication module, a 433Mhz wireless receiving module, an NBIoT communication module, an RS485/RS422 communication module, an RS232 communication module, and CAN communication modules, etc., one end of the AC-DC power supply module is electrically connected to the lithium battery charging management module, and is connected in series with the main control unit. The fire alarm gateway, through computer data analysis and processing, pushes early warning information to relevant terminal devices such as mobile phone clients, PC clients, and government command and dispatch centers at all levels according to abnormal sensor data, and at the same time, the data platform connects the data to individual firefighters The command system is used by firefighting governments and enterprises to efficiently and reasonably dispatch firefighters, so as to protect personnel safety and protect social property losses, which has great social value.

Description

A fire alarm gateway

technical field

The utility model relates to the technical field of fire alarm gateways, in particular to a fire alarm gateway.

Background technique

Fire alarms are widely used in various public buildings, residences and other places to detect fire and give an alarm. Generally, it uses sensor probes such as temperature sensing and smoke sensing to collect corresponding information, and an audible and visual alarm will be issued if the threshold value is exceeded; traditional fire alarm equipment is mostly wired installation, and the communication interface of fire-fighting related sensors is single. Old buildings, commercial streets, etc. Wiring construction is troublesome, maintenance is difficult in the later stage, replacement is troublesome, and power failure stops working, and networking is difficult; at the same time, the traditional fire alarm has a single alarm mode, and it is impossible to carry out intelligent linkage early warning through computer and network technology.

The gateways on the market lack a kind of fire alarm gateway with fire sensor equipment when used. There are inherent problems such as inconvenient installation, poor compatibility, and remote intelligent centralized monitoring, intelligent monitoring, and linkage control equipment. For this reason, we propose a fire alarm gateway based on NBIoT communication technology that is easy to deploy, easy to maintain, strong in communication anti-interference ability, free of wiring, continuous in power failure, compatible with mainstream fire sensor peripherals, intelligent monitoring, and linkage control .

Utility model content

The purpose of this utility model is to provide a fire alarm gateway to solve the lack of a fire alarm gateway with a fire sensor device when the gateway proposed in the background technology is used. At the same time, it is not possible to carry out remote intelligent centralized monitoring, intelligent monitoring, and linkage control equipment.

In order to achieve the above purpose, the utility model provides the following technical solutions: a fire alarm gateway, including AC-DC power supply module, lithium battery charging management module, LORA communication module, 433Mhz wireless receiving module, NBIoT communication module, RS485/RS422 communication Module, RS232 communication module, CAN communication module, analog/digital input port, main control unit and printer parallel port, one end of the AC-DC power supply module is electrically connected to the lithium battery charging management module, and the AC-DC power supply One end of the module is connected in series with the main control unit, and the main control unit forms an electrical connection with the parallel port of the printer through the drive circuit, and the signal transmission mode between the main control unit and the drive circuit is bidirectional transmission, the said LORA communication module, 433Mhz wireless receiving module, NBIoT communication module, RS485/RS422 communication module, RS232 communication module, CAN communication module, analog/digital input ports are all connected in parallel to the connecting terminal of the main control unit, and the CAN communication module includes electrical As for the fire sensor, the RS485/RS422 communication module includes a water level sensor, and the main control unit is electrically connected to the power detection module, the download interface, the debugging interface, the electrical fire sensor and the water level sensor.

Preferably, the information transmission mode between the electrical fire sensor and the water level sensor and the main control unit is two-way transmission, and the CAN terminal of the main control unit is connected to the electrical fire sensor, and the water level sensor is connected to the RS485 connection of the main control unit terminals.

Preferably, the power detection module, the temperature sensor, the smoke sensor and the main control unit are all connected in series, and the ADC terminal of the main control unit is connected to the power detection module, and one terminal of the main control unit is connected to the temperature sensor , and the GPIO terminal of the main control unit is connected to the smoke sensor.

Preferably, the download interface and the debugging interface are respectively connected to the SWD and UART1 connection terminals of the main control unit, and the information transmission mode between the two and the main control unit is electrical connection.

Preferably, the LED4 output terminal of the main control unit is connected in series with the state indication LEDX4.

Preferably, the access terminal of the RS232 communication module is connected to the UART terminal of the main control unit.

Preferably, the main control unit uses NB-IOT as an uplink communication link.

Compared with the prior art, the utility model has the beneficial effects that: the fire alarm gateway is provided with an AC-DC power supply module, a lithium battery charging management module, a LORA communication module, a 433Mhz wireless receiving module, an NBIoT communication module, and RS485/RS422 The communication module, RS232 communication module, CAN communication module, analog/digital input port, main control unit and printer parallel port can be correctly connected to the fire alarm gateway through the fire sensor peripherals according to the communication interface type when in use, turn on the power, and the device The gateway will start working immediately, and the gateway will send different fire sensor information to the background computer data platform through the NBIoT network according to the type of fire sensor equipment, and through computer data analysis and processing, the early warning information will be pushed to relevant terminal devices such as mobile phone customers according to the abnormal situation of sensor data Terminals, PC clients, and government command and dispatch centers at all levels. At the same time, the data platform connects data to the firefighting individual command system for firefighting government and enterprises to efficiently and reasonably dispatch firefighters, thereby protecting personnel safety and social property losses. It has great social significance. At the same time, this utility model adopts the latest NBIoT narrow-band cellular Internet of Things technology, which has many advantages such as low power consumption, low cost, wide and deep coverage area, massive number of connections, etc., and the related fire detection equipment of this equipment includes: temperature sensor , fire water pressure sensor, electrical fire monitoring detector, wireless/wired smoke detector, liquid level sensor, gas concentration detector, fire alarm controller, etc. The gateway comes with a large-capacity lithium battery, which can continue to work for sensor equipment , the maximum battery life is up to seven days, which effectively solves the problem of power failure monitoring interruption. At the same time, the main structural components of this design include: gateway shell, front baffle, rear baffle, 433MHz antenna, NBIoT antenna, PCB function main board, lithium battery In the device interface, the front panel includes main function port 1, main function port 2, power supply port, and indicator port; while the rear panel includes rear panel main function port 1, rear panel main function port 2, and rear panel antenna port 1 , Antenna interface 2 on the rear panel, where the main function port 1 includes RS232 communication interface, CAN communication interface, RS485 interface and 12V/24V DC power output interface; the main function port 2 includes digital input interface and analog input interface; the power supply interface includes DC 24V input interface, 220AC input interface and DC power switch; indicator light interface includes running status indicator light, fault status indicator light, disconnection status indicator light and power failure status indicator light; main function port 1 on the rear panel: printer parallel port input; The main function port 2 on the panel contains the printer parallel port output; the antenna port 1 on the rear panel contains the NBIoT port; the antenna port 2 on the rear panel contains the 433MHz port.

Description of drawings

Fig. 1 is the utility model fire alarm gateway circuit diagram;

Fig. 2 is the circuit diagram of the utility model RESET module.

In the picture: C1——433Mhz wireless receiving module; C2——LORA communication module; C3——NBIoT communication module; C4——RS485/RS422 communication module; C5——CAN communication module; C6——printer parallel port; C7—— Main control unit; C8—analog/digital input port; SK1—AC-DC power supply module; SK2—lithium battery charging management module; SK3—RS232 communication module.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figure 1-2, the utility model provides a technical solution: a fire alarm gateway, including AC-DC power supply module, lithium battery charging management module, LORA communication module, 433Mhz wireless receiving module, NBIoT communication module, RS485 /RS422 communication module, RS232 communication module, CAN communication module, analog/digital input port, main control unit and printer parallel port, one end of the AC-DC power supply module is electrically connected to the lithium battery charging management module, and the AC -One end of the DC power supply module is connected in series with the main control unit, and the main control unit is electrically connected to the parallel port of the printer through the drive circuit, and the signal transmission mode between the main control unit and the drive circuit is bidirectional transmission , the LORA communication module, the 433Mhz wireless receiving module, the NBIoT communication module, the RS485/RS422 communication module, the RS232 communication module, the CAN communication module, and the analog/digital input ports are connected in parallel to the connecting terminals of the main control unit, and the CAN communication The module includes an electrical fire sensor, the RS485/RS422 communication module includes a water level sensor, and the main control unit is electrically connected to the power detection module, the download interface, the debugging interface, the electrical fire sensor, and the water level sensor.

Working principle: For this type of fire alarm gateway, firstly, the fire sensor peripherals are correctly connected to the fire alarm gateway according to the communication interface type, and the device starts to work when the power is turned on. The information is sent to the background computer data platform through the NBIoT network, and through computer data analysis and processing, the early warning information is pushed to relevant terminal devices such as mobile phone clients, PC clients, and government command and dispatch centers at all levels according to abnormal sensor data. At the same time, the data platform will The data is connected to the firefighting individual command system for the firefighting government and enterprises to efficiently and reasonably dispatch firefighters, so as to protect the safety of personnel and ensure the loss of social property, which has great social value, and thus completes the use process of the entire fire alarm gateway.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (7)

1. a kind of fire-alarm gateway, including AC-DC power module, lithium battery charge management module, LORA communication module, 433Mhz wireless receiving module, NBIoT communication module, RS485/RS422 communication module, RS232 communication module, CAN communication mould Block, analog/digital input port, main control unit and parallel ports of printer, it is characterised in that: one end of the AC-DC power module with It to be electrically connected between lithium battery charge management module, and is the company of series connection between one end of AC-DC power module and main control unit It connects, the main control unit, which passes through to constitute between driving circuit and parallel ports of printer, to be electrically connected, and main control unit and driving circuit Between signal transfer mode be transmitted in both directions, the LORA communication module, 433Mhz wireless receiving module, NBIoT communicate mould Block, RS485/RS422 communication module, RS232 communication module, CAN communication module, analog/digital input port access master in parallel The connection terminal of unit is controlled, the CAN communication module includes electrical fire sensor, the RS485/RS422 communication module packet Include water level sensor, the main control unit and electric power detection module, download interface, debugging interface, electrical fire sensor and water It is to be electrically connected between level sensor.

2. a kind of fire-alarm gateway according to claim 1, it is characterised in that: the electrical fire sensor and water The mode of intelligence transmission between level sensor and main control unit is bi-directional, and the CAN terminal access of main control unit is electrical Fire sensor, and the RS485 connection terminal of water level sensor access main control unit.

3. a kind of fire-alarm gateway according to claim 1, it is characterised in that: the electric power detection module, temperature It is to be connected in series, and the ADC terminal of main control unit accesses electric power detection between sensor and cigarette propagated sensation sensor and main control unit Module, and a terminal cut-in temperature sensor of main control unit, and the GPIO terminal of main control unit accesses cigarette propagated sensation sensor.

4. a kind of fire-alarm gateway according to claim 1, it is characterised in that: the download interface and debugging interface It is respectively connected to SWD the and UART1 connection terminal of main control unit, and the mode of intelligence transmission between the two and main control unit is electricity Property connection.

5. a kind of fire-alarm gateway according to claim 1, it is characterised in that: the LED4 of the main control unit is exported It is series connection between terminal and status indicator LED X4.

6. a kind of fire-alarm gateway according to claim 1, it is characterised in that: the RS232 communication module connects Enter end to be connected with the UART terminal of main control unit.

7. a kind of fire-alarm gateway according to claim 1, it is characterised in that: the main control unit uses NB-IOT As uplink communication links.