CN201282503Y - Control system for automatic alarm network communication - Google Patents

Abstract

The utility model relates to a communication control system of an automatic alarming network, which comprises a front-end acquisition device, the front-end acquisition device is connected with a fire alarm center and a monitoring center through a telephone line communication link, the front-end acquisition device is connected with an internet gateway through the telephone line communication link; the internet gateway is connected with Internet network; and the monitoring center is connected with the telephone line communication link and the Internet network. The system has the advantages of flexible and novel design, and wide application range, can automatically communicate with a fire telephone and sends the relevant digital information, simultaneously utilizes an ADSL (Asymmetrical Digital Subscriber Loop) modulator to realize the transmission of network wideband data, transmit the field sensor data and the pictures filmed on the field to the background monitoring center, in particular to the automatic monitoring of fire and warehousing security protection.

Description

Automatic alarm network communication control system

technical field

The utility model relates to an automatic alarm network communication control system.

Background technique

At present, automatic fire alarm control systems have been installed in most of the key units, and the system is mainly composed of fire detection sensors and the main control machine. The sensor is composed of detection equipment such as smoke sensor, temperature sensor, flame sensor and gas probe. They are distributed at various fire monitoring points. When a fire is detected, an alarm message is sent to the main control machine, and the speaker of the main control machine sends a sound alarm. Judgment and handling by the staff on duty. Existing technical materials and retrieved patent documents, some patents and products have improved the disadvantages of the above-mentioned monitoring system, and can realize the function of automatically dialing 119 after detecting an accident, but they still obviously have the following problems Weaknesses and flaws:

(1) The fire command center cannot quickly determine the name and location of the alarm unit, the fire and the surrounding conditions of the fire;

(2) The fire point cannot be accurately located, that is, the position of the alarm probe cannot be accurately located, so the severity of the fire cannot be determined;

(3) Without an automatic answering function, it is impossible to ensure and determine whether the alarm signal is sent to the alarm center, and it is impossible to avoid occupying the telephone line due to non-stop dialing, and at the same time add troubles such as line occupation and personnel response to the alarm center;

(4) The existing dial controller cannot be well compatible with various alarm master controllers in terms of communication protocols, communication interfaces, etc.;

(5) There is no automatic alarm receiving software with complete functions such as alarm reception, data storage, data query and maintenance, and data statistical analysis that is matched with the dial controller.

(6) There is no relatively cheap on-site photo shooting function accessories, once the photo shooting is supported, the cost will increase exponentially.

Utility model content

Aiming at many deficiencies and defects in the current automatic alarm control system, the utility model provides a method of using the existing automatic alarm system to automatically connect the fire telephone through the urban telephone network and transmit relevant digital information, and realize network broadband by using an ADSL modulator. Data transmission, the on-site sensor data and on-site pictures are transmitted to the automatic alarm network communication control system of the background monitoring center.

In order to solve the above technical problems, the technical solution adopted by the utility model is: an automatic alarm network communication control system, which is characterized in that it includes a front-end acquisition device, and the front-end acquisition device is connected to the fire alarm center and the monitoring center through a telephone line communication link , the front-end acquisition device is connected to the Internet gateway through a telephone line communication link, the Internet gateway is connected to the Internet network, and the monitoring center is connected to the telephone line communication link and the Internet network; the monitoring center includes a host and is connected to the host The database server, the host is connected to the telephone line communication link through the MODEM, and the host is connected to the Internet through the firewall.

The front-end acquisition device includes a power supply module and an ARM9 core board connected to all chips for power supply, and the ARM9 core board is connected with optocoupler isolation, 8251 chip, watchdog chip, caller ID chip, LED status indicator, programmable parallel I/O expansion interface, Flash memory, buzzer and USB interface chip; the optocoupler isolation connection 8139 network chip, the 8139 network chip is connected to the ADSL modulator, and the 8251 chip is connected to the MODEM chip; the ADSL modulator , the MODEM chip and the caller ID chip are connected to the telephone line; the programmable parallel I/O expansion interface is connected to 16 sensor interfaces, the 16 sensor interfaces are connected to the sensor group, and the USB interface chip is connected to the camera.

The sensor group is one or more of smoke sensor, flame sensor, temperature and humidity sensor, carbon monoxide sensor and infrared sensor.

Compared with the prior art, the utility model has the following advantages:

1) It is compatible with the existing automatic alarm control system in terms of interface and data communication protocol, protects the original investment of users, and connects each key fire protection unit with the alarm network of the fire command center, supplemented by supporting data communication, Automatic alarm reception, data maintenance and other software can realize the functions of promptness, accuracy, positioning accuracy, and fire statistics analysis of alarms and alarms, providing scientific decision-making basis for fire departments to fire, alarm, and fire prevention.

2) The utility model has remote automatic collection of on-site environmental parameters, and the detection results of environmental parameters can be quickly transmitted through telephone lines or broadband networks, which is accurate and convenient, and the method of using this device for information collection has the advantages of low cost, high efficiency and safety.

3) Real-time monitoring of equipment operation of firefighting units, thereby improving the reliability of fire alarm facilities and enhancing the rapid response and command capabilities of firefighters. The automatic alarm network communication control system uses the connected sensor elements to obtain the fire alarm information of key fire units, and sends the digital alarm information specific to the probe to the fire command center through telephone or broadband network, so that the fire command center can quickly determine the name of the alarm unit , location, fire and surrounding conditions of the fire; make the fire command center the earliest to discover and monitor the occurrence of accidents in real time.

The technical solutions of the present utility model will be further described in detail through the accompanying drawings and examples of implementation.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural block diagram of the utility model front-end collecting device;

Explanation of reference signs:

1—Front-end acquisition device; 2—Telephone line communication link; 3—Broadband network transmission link;

4—monitoring center; 5—fire alarm center; 6—camera;

7—ADSL modulator; 8—ARM9 core board; 9—sensor group;

10—PSTN network; 11—Internet gateway; 12—Internet network;

13—MODEM; 14—database server; 15—firewall;

16—host; 18—power supply module; 21—USB interface chip;

22—optocoupler isolation; 23—8139 network chip; 24—8251 interface chip;

25—MODEM chip; 26—Watchdog chip; 27—Caller ID chip;

28—telephone line; 29—LED status indicator; 31—programmable parallel I/O expansion

Extension interface;

32—16-channel sensor interface; 33—Flash memory; 34—buzzer;

Detailed ways

As shown in Figure 1, the utility model comprises two parts: front-end acquisition device 1 and monitoring center 4; Between front-end acquisition device 1 and monitoring center 4, enter Internet network 12 through PSTN network 10 or ADSL modulation and carry out data transmission.

The automatic alarm network communication control system includes a front-end acquisition device 1, the front-end acquisition device 1 is connected to the fire alarm center 5 and the monitoring center 4 through the telephone line communication link 2, and the front-end acquisition device 1 is connected to the Internet gateway 11 through the telephone line communication link 2 , the Internet gateway 11 is connected to the Internet network 12, and the monitoring center 4 is connected to the telephone line communication link 2 and the Internet network 12.

The front-end acquisition device 1 includes an ARM9 core board 8 , and the ARM9 core board 8 is connected with a camera 6 , a sensor group 9 and an ADSL modulator 7 . The ADSL modulator 7 is connected to the telephone line communication link 2 .

The monitoring center includes a host 16 and a database server 14 connected to the host 16. The host 16 is connected to the telephone line communication link 2 through a MODEM 13, and the host 16 is connected to the Internet 12 through a firewall 15.

As shown in Figure 2, the power module 18 is connected to all chips for power supply; the ARM9 core board 8 is connected with an optocoupler isolation 22, an 8251 interface chip 24, a watchdog chip 26, a caller display chip 27, an LED status indicator 29, a programmable Parallel I/O expansion interface 31, Flash memory 33, buzzer 34 and USB interface chip 21; optocoupler isolation 22 is connected to 8139 network chip 23, 8139 network chip 23 is connected to ADSL modulator 7, 8251 interface chip 24 is connected to MODEM chip 25 ADSL modulator 7, MODEM chip 25 and caller ID chip 27 are connected with telephone line 28; Programmable parallel I/O expansion interface 31 is connected with 16 road sensor interfaces 32, and 16 road sensor interfaces 32 are connected with sensor group 9, USB interface chip 21 Connect the USB camera6.

(1) Front-end acquisition device:

Embed the Linux operating system on the ARM9 core board 8, which has high-performance processing capability, and is used to obtain the information of the environment where the sensor group 9 collects real-time information through A/D conversion, packs information data, and controls the communication transceiver unit to send and receive data;

Communication transceiver unit: comprise two kinds of interfaces, one is the existing telephone line communication modulator, ARM9 core board 8 connects Inte18251 interface chip 24 to MODEM chip 25, drives MODEM chip 25 to carry out telephone dialing and can directly use telephone line dialing, then carry out Data transmission, this method is low in cost, but the rate is low, and it cannot transmit a large amount of picture information taken on site. One is the ADSL modulator 7 based on network broadband, the ARM9 core board 8 is connected to the optocoupler isolation 22, the optocoupler isolation 22 is connected to the 8139 network chip 23, and the 8139 network chip 23 is connected to the ADSL modulator 7. This method can realize automatic dial-up Broadband network, fast speed, can transmit on-site pictures, the cost is slightly higher, and an annual subscription fee for network broadband is required.

Sensor group 9: used to detect environmental parameters; it can support 8-way analog and 8-way switch sensor input, including smoke, flame, temperature and gas probes. The sensor group 9 is one or more of smoke sensor, flame sensor, temperature and humidity sensor, carbon monoxide sensor and infrared sensor.

USB interface chip 21: It can support QQ cameras with up to 5 million pixels at present, and realize on-site shooting. Compared with ordinary CCD cameras, the cost is extremely low, and it is optional and more practical.

Buzzer 34: used for alarming when the parameter exceeds the limit;

Flash memory 33: used for caching the data collected on site, no need to store when the communication is smooth, only temporarily stored when there is a problem with the communication, and will be automatically uploaded when the communication is restored.

(2) The background monitoring center includes a MODEM 13, a host computer 16, a firewall 15 and a database server 14, and the host computer 16 is equipped with online monitoring software.

MODEM13: It can receive telephone dialing and data transmission from the front-end acquisition device 1 on site.

Host 16: it can support fixed IP or dynamic domain name resolution, and accept data transmission from the on-site front-end acquisition device 1 through ADSL broadband communication.

Database server 14: adopts a large-scale relational database, supporting up to hundreds of millions of alarm records.

Online monitoring software: Receive on-site network communication controller to on-site or alarm data through the network interface or fixed-line interface, and save the data in the database.

Firewall 15: Effectively prevent illegal network connections.

The method of using this system to collect environmental parameters is: use the sensor group 9 of the front-end acquisition device 1 to conduct on-site detection. When a certain sensor is abnormal, the front-end acquisition device 1 will judge that it supports the telephone debugging communication mode. If it supports it, it will automatically dial and upload. Data, and alarm, if it supports ADSL modulation mode, it can realize linkage shooting on-site pictures, upload alarm events and on-site pictures taken. Background monitoring center 4 can immediately judge whether to take further action after receiving the uploaded alarm event and the scene picture.

working principle:

The power supply module 18 supplies power for all chips, and the ARM9 core board 8 is connected to the USB interface chip 21 to drive the USB camera 6 . Buzzer 34 is connected to ARM9 core board 8, is driven by ARM9 core board 8 on-site sound alarm. Flash memory 33 is connected to ARM9 core board 8 for storing temporary alarm information and device factory parameters. The 16-way sensor interface 32 is driven by the programmable parallel I/O expansion interface 31 and connected to the ARM9 core board 8 in turn, and is used to collect digital data of field environmental parameters as a basis for alarming. LED status indicator light 29 is connected to ARM9 core board 8 by 3 LED light-emitting diodes, indicates power switch state, data communication state and alarm state. The connection between ARM9 core board 8 and 8139 network interface chip 23 needs optocoupler device 22 to isolate, and then 8139 network interface chip 23 is connected to ADSL modulator 7 again, can realize the function that ARM9 core board 8 automatically dials into the broadband network. ARM9 core board 8 connects Intel 18251 interface chip 24 (asynchronous serial port chip) to MODEM chip 25, drives MODEM chip 25 to carry out telephone dialing. The ARM9 core board 8 is connected to the caller display chip 27 and can display the numbers of incoming and outgoing calls. The ARM9 core board 8 is connected to the watchdog chip 26 in order to prevent the processor program from running away and crashing.

Claims (3)

1. An automatic alarm network communication control system is characterized in that comprising a front-end acquisition device, the front-end acquisition device is connected to a fire alarm center and a monitoring center by a telephone line communication link, and the front-end acquisition device is connected by a telephone line communication link To the Internet gateway, the Internet gateway is connected to the Internet network, and the monitoring center is connected to the telephone line communication link and the Internet network; The monitoring center includes a host and a database server connected to the host, the host is connected to a telephone line communication link through a MODEM, and the host is connected to the Internet through a firewall. 2. automatic alarm network communication control system according to claim 1, it is characterized in that described front-end acquisition device comprises the power supply module and ARM9 core board that connects all chips to supply power, and described ARM9 core board is connected with optocoupler isolation, 8251 chip, watchdog chip, caller ID chip, LED status indicator, programmable parallel I/O expansion interface, Flash memory, buzzer and USB interface chip; the optocoupler is isolated and connected to the 8139 network chip, and the 8139 network The chip is connected to the ADSL modulator, and the 8251 chip is connected to the MODEM chip; the ADSL modulator, the MODEM chip and the caller ID chip are connected to the telephone line; the programmable parallel I/O expansion interface is connected to 16 sensor interfaces, and the 16 The road sensor interface is connected to the sensor group, and the USB interface chip is connected to the camera. 3. The automatic alarm network communication control system according to claim 1 or 2, characterized in that the sensor group is one or more of smoke sensor, flame sensor, temperature and humidity sensor, carbon monoxide sensor and infrared sensor.

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