CN102509422A - A gas monitoring system - Google Patents

Abstract

The invention discloses a gas monitoring system, comprising: the wireless sensor network layer is used for acquiring indoor gas leakage state information through a wireless sensor network and sending safety data comprising the gas leakage state information and corresponding user information through a first wireless network; the information conversion layer is used for receiving and analyzing the safety data through the first wireless network and sending corresponding gas leakage state information through the second wireless network according to the user information in the safety data; the network layer is used for sending the gas leakage state information to the monitoring terminal through a second wireless network; the monitoring terminal is a server of a gas company, a mobile terminal and/or a property monitoring center, so that a user, the gas company and the property are convenient to obtain the safe operation information of the gas in time without being limited by time and space, the safety of system monitoring and the reliability of data transmission are improved, the system has a system self-checking function, the power consumption is low, and the popularization and application values are high.

Description

A gas monitoring system

technical field

The invention belongs to the technical field of gas monitoring, and in particular relates to a gas monitoring system.

Background technique

At present, under the impetus of national industrial reform, natural gas, liquefied petroleum gas and other gas continue to enter thousands of households. While gas provides convenience for thousands of households, it also causes many accidents. Therefore, it is necessary to monitor the concentration of indoor gas. real-time monitoring.

For this reason, the prior art proposes a gas alarm device installed in a single household, which detects the indoor gas concentration through a sensor, and sends an alarm through an alarm generating unit to prompt the on-site personnel to deal with it in time. It reduces the occurrence of gas leakage accidents to a certain extent. However, due to the single-family installation method, only local alarms can be issued. Therefore, when the user is not at home or has not heard the alarm information, gas leakage cannot be avoided. Accidents occur and safety performance is poor.

Contents of the invention

The purpose of the embodiment of the present invention is to provide a gas monitoring system to solve the problem of poor safety performance of the gas alarm device provided in the prior art.

The embodiment of the present invention is achieved in this way, a gas monitoring system, the system includes:

The wireless sensor network layer is used to collect indoor gas leakage status information through the wireless sensor network, and send security data including the gas leakage status information and corresponding user information through the first wireless network;

An information conversion layer, configured to receive and parse the safety data through the first wireless network, and send corresponding gas leakage status information through the second wireless network according to the user information in the safety data;

A network layer, configured to send the gas leakage status information to the monitoring terminal through the second wireless network;

The monitoring terminal is a gas company server, a mobile terminal, and/or a property monitoring center.

The gas monitoring system provided by the present invention realizes information interaction between the gas monitoring system and the monitoring terminal by establishing a gas monitoring network. The monitoring terminal can be a gas company server, a mobile terminal, and/or a property monitoring center, thereby facilitating users, Companies and properties can obtain gas safety operation information in a timely manner without being limited by time and space, which improves the safety of system monitoring and the reliability of data transmission. It has a system self-test function and low power consumption, which is of great promotion and application value. .

Description of drawings

Fig. 1 is the schematic diagram of the gas monitoring system provided by the present invention;

Fig. 2 is the structural diagram of the intelligent node in the wireless sensor network layer in Fig. 1;

Fig. 3 is in the present invention, the working flowchart of intelligent node;

Fig. 4 is a structural diagram of the information conversion layer in Fig. 1;

Fig. 5 is a working flow diagram of the information conversion layer in the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

As shown in Figure 1, the gas monitoring system provided by the present invention includes: a wireless sensor network layer 11, which is used to collect the indoor gas leakage status information through the wireless sensor network, and send the gas leakage status information and corresponding information through the first wireless network. The security data of user information; the information conversion layer 12 is used to receive and analyze the security data through the first wireless network, and send the corresponding gas leakage status information through the second wireless network according to the user information in the security data; the network layer 13. It is used to send the gas leakage status information to the monitoring terminal through the second wireless network.

The monitoring terminal can be a gas company server, a mobile terminal, and/or a property monitoring center. When the monitoring terminal includes a gas company server and a property monitoring center, the gas company server and the property monitoring center can be connected through the Internet; the first A wireless network can be various existing short-distance wireless communication networks, preferably, in the present invention, the first wireless network is Zigbee (Zigbee) network; The second wireless network wherein can be various existing long-distance communication networks , Preferably, in the present invention, the second wireless network is the Internet or a mobile communication network, and the mobile communication network may specifically be a GPRS network, a GSM network, a 3G network, and the like.

In the present invention, the wireless sensor network layer is composed of wireless sensor network nodes, and the wireless sensor network nodes may include a plurality of intelligent nodes respectively collecting indoor gas leakage state information and a central node connecting the plurality of intelligent nodes. The multiple smart nodes can be placed in each user room respectively, and two or more smart nodes can also be placed in the same user room. The multiple intelligent nodes can be connected by using various existing network topologies, such as a star network topology, a tree network topology, and the like. Each intelligent node, as well as between the intelligent node and the central node, can exchange information through the network. Each intelligent node can broadcast the collected gas leakage status information through the network, and other intelligent nodes can obtain the information through the network. In this way, the surrounding neighbors can assist in the monitoring of users with gas leakage.

Preferably, the intelligent node adopts the principle of forwarding to transmit information. Specifically, the intelligent node transmits the collected gas leakage status information to its closest intelligent node, and the other intelligent nodes are the same, looking for the closest intelligent node to transmit information. In this way, the gas leakage status information is transmitted to the central node point by point, thereby improving the reliability of wireless communication.

In order to further improve the reliability of the system, so that the property or gas company can know the working status of the indoor intelligent nodes in time, in the present invention, the central node is also used to send handshake signals to each intelligent node at regular intervals, and after sending a limited number of handshake signals without When receiving the response signal returned by the intelligent node, the fault signal of the corresponding intelligent node is sent to the monitoring terminal, so that the monitoring personnel can know in time whether the indoor intelligent node is in normal working condition, which improves the reliability of the system operation.

In addition, the wireless sensor network layer 11 can also be connected with an automatic meter reading device. The automatic meter reading device reads the user's gas consumption information in real time, and transmits the user's gas consumption information to the information conversion layer through the wireless sensor network layer 11. 12. The information conversion layer 12 is also used to send the gas consumption information of the user to the monitoring terminal through the second wireless network.

As shown in Figure 2, the smart node includes: a first wireless communication module 113 connected to the central node; a sensor module 111 including one or more sensors for collecting indoor gas leakage state information; a first information processing module 112 for When one or more sensors have collected the indoor gas leakage state information, the first wireless communication module 113 is controlled to send safety data including the collected gas leakage state information and corresponding user information to the central node.

The first information processing module 112 can directly send the indoor gas leakage state information collected by the first wireless communication module 113 to the central node through the first wireless communication module 113, or can pre-set a threshold, when judging the collected indoor gas leakage state information When the information exceeds the threshold, the collected indoor gas leakage status information is sent to the central node through the first wireless communication module 113, and at this time, the safety data therein also includes alarm information.

Preferably, the first wireless communication module 113 includes two sensors to realize redundant monitoring, and the first information processing module 112 sends safety data to the central node when both sensors collect the indoor gas leakage status information, thereby avoiding The traditional gas alarm device using a single sensor is prone to false alarms.

Preferably, the first wireless communication module 113 is a Zigbee wireless communication module; preferably, the first information processing module 112 is an AVR single-chip microcomputer.

The smart node also includes: a human-computer interaction module 114 for displaying indoor gas leakage status information. The human-computer interaction module 114 includes at least a liquid crystal display unit, and may also include a physical keyboard or a touch screen to provide an interface for the user to modify the user's phone number.

The smart node also includes: a power management module 115 that supplies power to the sensor module 111 , the first information processing module 112 and the human-computer interaction module 114 .

As shown in Figure 3, the workflow of the smart node is as follows:

In step S11, after the smart node is initialized, it is judged whether the phone number needs to be modified, if yes, step S13 is executed, otherwise, step S12 is executed.

In step S12, indoor gas leakage status information is collected.

In step S13, a telephone number is input.

In step S14, the telephone number is stored.

In step S15, it is judged whether all the sensors have collected the indoor gas leakage state information, if yes, execute step S16, otherwise execute step S18.

In step S16, find the nearest smart node and send the security data to it.

In step S17, an alarm signal is issued.

In step S18, it is judged whether broadcast information is received, if yes, execute step S17, otherwise execute step S12.

As shown in Figure 4, the information conversion layer 12 includes: a second wireless communication module 121, used to receive the security data sent by the wireless sensor network layer 11 through the first wireless network; a second information processing module 122, used to analyze the security data Data; customer identification card module 123, configured to send corresponding gas leakage status information through the second wireless network according to the user information in the security data.

Preferably, the customer identification card module 123 is a SIM card module, and the second information processing module 122 is an ARM chip. At this time, the information conversion layer 12 is controlled by an embedded system. After parsing the security data, the ARM chip controls the SIM card module to send the gas leakage status information to the mobile phone of the corresponding user according to the user information. Send it to the Internet to facilitate property managers and gas companies to monitor the overall safety information of gas.

As shown in Figure 5, the workflow of the information conversion layer 12 is as follows:

In step S21, the data sent by the wireless sensor network layer is extracted and analyzed.

In step S22, it is judged whether there is an alarm signal, if yes, execute step S24, otherwise execute step S23.

In step S23, an alarm signal is displayed.

In step S24, the address is resolved.

In step S25, the control client identification card module is sent to the monitoring terminal.

In the present invention, the network layer 13 realizes the monitoring purpose of users, properties and gas companies by setting different permissions. Establish a network platform through software programming on the server of the gas company, and set up three different login permissions for ordinary users, property management and gas service companies. The three different login permissions can query security data in different ranges, so that users, property management Management personnel and gas company personnel can grasp the gas safety status anytime and anywhere. At the same time, the network platform also has a database function, which can assist gas service companies to analyze historical data and plan and manage the overall gas safety system.

The gas monitoring system provided by the present invention realizes information interaction between the gas monitoring system and the monitoring terminal by establishing a gas monitoring network. The monitoring terminal can be a gas company server, a mobile terminal, and/or a property monitoring center, thereby facilitating users, Companies and properties can obtain gas safety operation information in a timely manner without being limited by time and space, which improves the safety of system monitoring and the reliability of data transmission. It has a system self-test function and low power consumption, which is of great promotion and application value. .

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, any person familiar with the technical field within the technical scope disclosed in the present invention, according to the technical solution of the present invention Any equivalent replacement or change of the inventive concepts thereof shall fall within the protection scope of the present invention.

Claims (10)

1. a gas monitoring system is characterized in that, said system comprises:

The radio sensing network layer is used for gathering indoor fuel gas leak condition information through radio sensing network, and passes through

First wireless network sends the secure data that comprises this combustion gas leak condition information and respective user information;

The information translation layer is used for receiving and resolve this secure data through said first wireless network, and according to the user profile in the said secure data corresponding combustion gas leak condition information is sent through second wireless network;

Network layer is used for through said second wireless network combustion gas leak condition information being sent to monitoring terminal;

Said monitoring terminal is gas company server, portable terminal and/or property Surveillance center.

2. gas monitoring as claimed in claim 1 system; It is characterized in that; Said radio sensing network layer also connects an automatic meter number recorder; Said automatic meter number recorder reads user's gas use amount information in real time, and sends user's gas use amount information to said information translation layer through said radio sensing network layer;

Said information translation layer also is used for through second wireless network, and user's gas use amount information is sent to monitoring terminal.

3. gas monitoring as claimed in claim 1 system is characterized in that said monitoring terminal comprises gas company server and property Surveillance center, between said gas company server and the said property Surveillance center through Internet connection.

4. gas monitoring as claimed in claim 1 system is characterized in that said first wireless network is the Zigbee network; Said second wireless network is internet or mobile communications network.

5. gas monitoring as claimed in claim 1 system; It is characterized in that; Said radio sensing network layer is made up of radio sensing network node, and said radio sensing network node comprises the Centroid gathering the intelligent node of indoor fuel gas leak condition information respectively and connect these a plurality of intelligent nodes; Said intelligent node comprises:

First wireless communication module that connects Centroid;

Sensor assembly, said sensor assembly comprise one or more sensors that are used to gather indoor fuel gas leak condition information;

First information processing module; Be used for when one or more sensors all collect indoor fuel gas leak condition information, control said first wireless communication module and send to said Centroid and comprise the combustion gas leak condition information that collects and the secure data of respective user information.

6. gas monitoring as claimed in claim 5 system is characterized in that said first wireless communication module is the Zigbee wireless communication module; Said first information processing module is the AVR single-chip microcomputer.

7. gas monitoring as claimed in claim 5 system is characterized in that said intelligent node also comprises: the human-computer interaction module that shows indoor fuel gas leak condition information.

8. gas monitoring as claimed in claim 7 system is characterized in that institute's intelligent node also comprises: to the power management module of said sensor assembly, first information processing module and human-computer interaction module power supply.

9. gas monitoring as claimed in claim 5 system is characterized in that said information translation layer comprises:

Second wireless communication module is used for receiving the secure data that said radio sensing network layer sends through first wireless network;

Second message processing module is used to resolve said secure data;

Client's identification card module is used for according to the user profile of said secure data corresponding combustion gas leak condition information being sent through second wireless network.

10. gas monitoring as claimed in claim 9 system is characterized in that said client's identification card module is the SIM module, and said second message processing module is the ARM chip.

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