CN103794036A - Wireless multipoint intelligent alarm system and control method thereof - Google Patents

Abstract

The invention relates to a wireless multipoint intelligent alarm system and a control method of the wireless multipoint intelligent alarm system, wherein the wireless multipoint intelligent alarm system and the control method can conduct beforehand monitoring on various accidents occurring in a house and perform remote alarming, so that life and property of a user are protected against loss. The wireless multipoint intelligent alarm system comprises at least one single-chip microcomputer auxiliary unit module and a single-chip microcomputer main unit module. After receiving changes in temperature, people and gas content, a first single-chip microcomputer system in each single-chip microcomputer auxiliary unit sends an instruction to a sound-light alarm module to make the sound-light alarm module give a sound and light alarm and controls a wireless transmitter module to wirelessly transmit alarm information when the temperature exceeds a preset value or suspicious people appear or the gas content becomes abnormal. In the single-chip microcomputer main unit module, according to the alarm information received by a wireless receiver module, a second single-chip microcomputer system controls a display module to display the specific transmitting position and the alarm type and controls a teletransmission module to send the alarm information to a remote terminal.

Description

A wireless multi-point intelligent alarm system and its control method

technical field

The invention relates to an alarm system and its control method, in particular to a wireless multi-point intelligent alarm system and its control method.

Background technique

With the continuous improvement of our country's national economy and people's living standards, the issue of family safety has attracted more and more attention. Intelligent anti-theft, fire prevention, and gas leakage alarm systems are currently hot technologies in the field of intelligent alarms. At present, there are more and more domestic and foreign Many manufacturers research alarm system technology, but the price of finished products is relatively high, so it is of great practical significance to develop a set of intelligent alarm system with low price, high reliability and complete functions that can meet the needs of the Chinese market.

Contents of the invention

The purpose of the present invention is to provide a wireless multi-point intelligent alarm system, so that theft, fire and gas leakage that are about to occur in the monitoring place can be found in time.

In order to achieve the above object, a wireless multi-point intelligent alarm system includes at least one single-chip extension module and a single-chip host module, wherein:

The single-chip extension module includes:

The pyroelectric infrared sensor module monitors the temperature and personnel changes in the environment;

Gas sensor module to monitor the gas content in the air;

Sound and light alarm module, after receiving the command, it will send out sound and light alarm prompts;

A wireless transmitting module for wirelessly transmitting alarm information; and

The first single-chip microcomputer system is connected to the pyroelectric infrared sensing module, the gas sensor module, the wireless transmitting module and the sound and light alarm module. After receiving changes in temperature, personnel and gas content, when the temperature exceeds When the preset value, suspicious personnel or abnormal gas content occur, an instruction is sent to the sound and light alarm module to send out sound and light alarm prompts, and control the wireless transmission module to wirelessly transmit alarm information;

The single-chip host module includes:

The wireless receiving module receives the alarm information of the wireless transmitting module;

A display module, displaying the sending location and alarm type of the alarm information;

a remote transmission module, which transmits the alarm information to a remote terminal; and

The second single-chip microcomputer system is connected to the wireless receiving module, the display module and the remote transmission module, and controls the display module to display the specific sending location and alarm type according to the alarm information received by the wireless receiving module, and controls the remote The transmission module sends alarm information to the remote terminal.

Preferably, the pyroelectric infrared sensing module includes a temperature sensor, a pyroelectric infrared sensor, a Fresnel lens of a model corresponding to the pyroelectric infrared sensor, and a dedicated processing chip BISS0001. the

Preferably, the gas sensing module includes an MQ9 sensor and an A/D conversion circuit, and the A/D conversion module is connected to the first single-chip microcomputer system.

Preferably, the wireless transmitting module is a 315MHz high-frequency transmitting circuit composed of a PT2262 chip.

Preferably, the remote transmission module includes a GTM9000 wireless communication circuit, a SIM card and a SIM card slot, and the SIM card slot connects the GTM9000 wireless communication circuit and the SIM card.

In order to achieve the above object, the present invention also provides a wireless multi-point intelligent alarm control method, using a wireless multi-point intelligent alarm system provided in claim 1, characterized in that it includes the following steps:

In the detection step, the single-chip extension module all monitors the temperature in the environment, the change of personnel and the gas content in the air;

The extension alarm step is to send an alarm message when the temperature exceeds a preset value, a suspicious person occurs, or the gas content is abnormal; if an alarm message is issued, a sound and a light alarm prompt are issued and the alarm message is wirelessly transmitted to the single-chip host module;

Host alarm step, the single-chip host module displays the alarm information according to the received alarm information, and sends the alarm information to the remote terminal;

Continue the detection step: when the temperature, changes in personnel and gas content in the air are normal, continue the detection step.

Preferably, the temperature, personnel change and gas content in the air are always monitored during the extension alarm step and the host alarm step.

Preferably, after the host alarm step is performed, the detection step continues to be circulated.

Preferably, the alarm information includes alarm location and alarm type.

Preferably, the alarm types include fire alarm, gas leakage alarm and suspicious person alarm.

Compared with the prior art, the present invention has the following advantages and positive effects due to the adoption of the above technical scheme:

1) The present invention can alarm in time when the theft, fire and gas leakage are about to occur in the monitoring place, and has strong real-time performance;

2) The present invention displays the specific alarm location and alarm type through the display module, sends out sound and light alarms on site, sends alarm information to the host and sends alarm information to the remote terminal, and realizes precise and specific alarms;

3) The present invention has low cost and simple structure, adopts two single-chip microcomputer systems as the control system, has strong versatility, simple operation, and reliable system operation.

Description of drawings

Fig. 1 is a system block diagram of a kind of wireless multi-point intelligent alarm system of the present invention;

Fig. 2 is the flowchart of a kind of wireless multi-point intelligent alarm control method of the present invention;

3 is a circuit diagram of a wireless transmission module and a first single-chip microcomputer system according to an embodiment of the present invention;

Fig. 4 is the GSM9000 communication module circuit diagram in the remote transmission module of the embodiment of the present invention;

Fig. 5 is the GSM level conversion circuit diagram in the remote transmission module of the embodiment of the present invention;

6 is a circuit diagram of a gas sensing module according to an embodiment of the present invention;

7 is a circuit diagram of a pyroelectric infrared sensor according to an embodiment of the present invention;

FIG. 8 is a circuit diagram of the wireless receiving module and the second single-chip microcomputer system in the embodiment of the present invention.

Detailed ways

The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

As shown in Figures 1, 3-8, a wireless multi-point intelligent alarm system provided by the present invention includes two single-chip extension modules 2 and a single-chip host module 1 .

The single-chip host module 1 includes a wireless receiving module 11, a display module 12, a remote transmission module 13 and a second single-chip system 14; the single-chip extension module 2 includes a pyroelectric infrared sensor module 21, a gas sensor module 22, an acousto-optic alarm module 23, The wireless transmitting module 24 and the first single-chip microcomputer system 25.

Wherein: the wireless receiving module 11 receives the alarm information from the wireless transmitting module 24 .

The display module 12 displays alarm information, including alarm location and alarm type, and can adopt liquid crystal display, LED screen and the like.

The remote transmission module 13 transmits the alarm information to a remote terminal 3. The remote transmission module 13 includes a GTM9000 wireless communication circuit, a SIM card and a SIM card slot. The SIM card slot is used to connect the SIM card and the remote transmission module 13, and the single-chip host module 1 When the logic level is different from that of GTM, the GTM9000 wireless communication circuit is also connected with a level conversion module, and responds to the instructions sent by the first single-chip microcomputer system 25 to send text messages or dial numbers to the remote terminal 3 .

The second single-chip microcomputer system 14 is the minimum system of single-chip microcomputer, and it connects wireless receiving module 11, display module 12 and long-distance transmission module 13, controls display module 12 according to the alarm information that wireless receiving module 11 receives and displays concrete sending position and alarm type, and Control the remote transmission module 13 to send alarm information to the remote terminal. the

The pyroelectric infrared sensing module 21 comprises a temperature sensor, a pyroelectric infrared sensor, a Fresnel lens corresponding to the pyroelectric infrared sensor, and a dedicated processing chip BISS0001. The pole output detection results are sent to two amplifiers composed of LM324. After the first stage LM324 is processed, a voltage fluctuating on the basis of 2.5v is obtained, and then sent to the window comparator composed of LM324 in the subsequent stage, and finally the output high level is sent to the microcontroller. . The temperature sensor detects the temperature and is connected to the first single-chip microcomputer system.

The final output high level is sent to the microcontroller for monitoring the temperature and personnel changes in the environment.

The gas sensor module 22 monitors the gas content in the air. In the present embodiment, the gas sensor module includes an MQ-9 combustible gas sensor and an A/D conversion circuit. In the present embodiment, the LM393 comparator is used as the A/D converter. After the gas sensor MQ9 detects the gas, the output voltage generated is sent to the LM393 comparator to determine whether the output voltage is high or low after the voltage comparison. The MQ-9 combustible gas sensor is connected to the first The single-chip microcomputer system is connected, and the sensed combustible gas concentration is compared with the critical value set in the single-chip microcomputer to determine whether to alarm.

The sound and light alarm module 23 sends out sound and light alarm prompts after receiving the instruction, and the sound and light alarm module 23 can use LED warning lights and buzzers.

Wireless transmission module 24 wireless transmission alarm information, is the 315M wireless transmission module that is made up of PT2262 chip, connects the first single-chip microcomputer system 25.

The first single-chip microcomputer system 25 is the minimum system of single-chip microcomputer, which connects the pyroelectric infrared sensor module 21, the gas sensor module 22, the wireless transmission module 24 and the sound and light alarm module 23, and receives the temperature in the monitoring environment, the change of personnel and the changes in the air. When the gas content meets the alarm conditions, an instruction is sent to the sound and light alarm module 23 to sound and light alarm prompts, and the wireless transmitting module 24 is controlled to wirelessly transmit alarm information. The alarm information includes the alarm location and alarm type. The alarm types include fire alarm, gas leakage alarm, and suspicious person alarm. When the temperature exceeds the preset value in the microcontroller, a fire alarm is issued; when an abnormal person occurs, a suspicious person alarm is issued; when flammable gas in the gas When the content exceeds the standard, a gas leakage alarm will be issued.

As shown in Figure 2, it is a flow chart of a wireless multi-point intelligent alarm control method provided by the present invention, and the method will be explained in detail below.

The present invention also provides a wireless multi-point intelligent alarm control method, using the above-mentioned wireless multi-point intelligent alarm system provided by the present invention, comprising the following steps:

In the detection step, the pyroelectric infrared sensor module 21 and the gas sensor module 22 in each single-chip extension module 2 respectively detect and monitor the temperature in the environment, changes in personnel and gas content in the air.

The extension alarm step, when the temperature exceeds the preset value, a suspicious person appears or the gas content is abnormal, an alarm message is sent. If an alarm message is sent, then sound and light alarm prompts are issued and the alarm message is wirelessly transmitted to the single-chip host module 1; the alarm message is always detected in the process of carrying out the extension alarm step.

The alarm information includes the alarm location and alarm type. The alarm types include fire alarm, gas leakage alarm, and suspicious person alarm. When the temperature exceeds the preset value in the microcontroller, a fire alarm is issued; when an abnormal person occurs, a suspicious person alarm is issued; when flammable gas in the gas When the content exceeds the standard, a gas leakage alarm will be issued.

In the host alarm step, the single-chip host module 1 displays the specific alarm location and alarm type of the alarm information according to the received alarm information. The alarm location can be a room number, a house number or the like. Alarm types include fire alarm, gas leak alarm and suspicious person alarm. And through the remote transmission module 13, the alarm information is transmitted to the remote terminal 3 in the form of a short message or a telephone call. Send alarm information to the remote terminal; always detect the alarm information during the host alarm step; continue to cycle the detection step after the host alarm step is performed.

Continue the detection step: when the temperature, personnel change and gas content in the air are normal, then continue the detection step.

The above-mentioned disclosure is only a specific embodiment of the present invention, which is only used to illustrate the present invention more clearly, but not to limit the present invention. Any changes that those skilled in the art can think of should fall within the scope of protection Inside.

Claims (10)

1. a wireless multipoint intelligent alarm system, is characterized in that, comprises at least one single-chip microcomputer extension set module and a single-chip microcomputer host module, wherein:

Described single-chip microcomputer extension set module comprises:

Thermal release electric infra-red ray sensing module, temperature and personnel's variation in monitoring of environmental;

Gas sensor module, gas content in monitoring air;

Sound and light alarm module, receives after instruction and sounds and light warning prompting;

Wireless transmitter module, wireless transmit warning message; And

The first Single Chip Microcomputer (SCM) system, connect described thermal release electric infra-red ray sensing module, described gas sensor module, described wireless transmitter module and described sound and light alarm module, receive after the variation of temperature, personnel and gas content, when temperature exceedes preset value, occurs that a suspect or gas content send instruction when abnormal and sound to described sound and light alarm module and light warning prompting, and control described wireless transmitter module wireless transmit warning message;

Described single-chip microcomputer host module comprises:

Wireless receiving module, receives the warning message of described wireless transmitter module;

Display module, what show described warning message sends position and type of alarm;

Remote transmission module, is sent to a remote terminal by warning message; And

Second singlechip system, connect described wireless receiving module, described display module and described remote transmission module, the warning message receiving according to described wireless receiving module, what the demonstration of control display module was concrete sends position and type of alarm, and controls remote transmission module transmission warning message to described remote terminal.

2. as claimed in claim 1. a kind of wireless multipoint intelligent alarm system, it is characterized in that, described thermal release electric infra-red ray sensing module comprises temperature sensor, Thermoelectric Infrared Sensor, Fresnel Lenses and dedicated processes chip BISS0001 with the corresponding model of described Thermoelectric Infrared Sensor.

3. as claimed in claim 1. a kind of wireless multipoint intelligent alarm system, it is characterized in that, described gas sensing module comprises a MQ9 sensor and an A/D change-over circuit, described A/D modular converter is connected with described the first Single Chip Microcomputer (SCM) system.

4. a kind of wireless multipoint intelligent alarm system as claimed in claim 1, is characterized in that, described wireless transmitter module is the high frequency transmission circuit of the 315MHz that is made up of PT2262 chip.

5. a kind of wireless multipoint intelligent alarm system as claimed in claim 1, it is characterized in that, described remote transmission module comprises GTM9000 wireless communication line, SIM card and sim card slot, and described sim card slot connects described GTM9000 wireless communication line and described SIM card.

6. a wireless multipoint intelligent alarm control method, the 1 a kind of wireless multipoint intelligent alarm system providing is provided right to use, it is characterized in that, comprises the following steps:

Detecting step, gas content in temperature, personnel's variation and air in the equal monitoring of environmental of described single-chip microcomputer extension set module;

Extension set alert step, when temperature exceedes preset value, occurs that a suspect or gas content send warning message when abnormal; If send warning message, sound and light warning prompting wireless transmit described in warning message to described single-chip microcomputer host module;

Main frame alert step, described single-chip microcomputer host module, according to the warning message receiving, shows described warning message, the concurrent alarming information of delivering newspaper is to described remote terminal;

Continue detecting step: in the time that gas content is normal in temperature, personnel's variation and air, proceed described detecting step.

7. a kind of wireless multipoint intelligent alarm control method as claimed in claim 6, is characterized in that, carry out carrying out all the time in described extension set alert step and described main frame alert step process temperature, personnel change and air in the monitoring of gas content.

8. the SCM Based carbon dioxide automatic alarm of the one as described in claim 6 or 7 control method, is characterized in that, after described main frame alert step is carried out, continues the described detecting step of circulation.

9. the SCM Based carbon dioxide automatic alarm of one as claimed in claim 6 control method, is characterized in that, described warning message comprises alert locations and type of alarm.

10. the SCM Based carbon dioxide automatic alarm of one as claimed in claim 9 control method, is characterized in that, described type of alarm comprises that fire alarm, coal gas leakage alarming and a suspect report to the police.

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