CN105702009A - Intelligent meter reading gateway supporting multi-type sensor network accessing simultaneously - Google Patents

Abstract

The invention discloses an intelligent meter reading gateway that supports simultaneous access to multiple types of sensor networks, which includes a processing module, a display module, peripherals, a meter reading network interface module and multiple different types of sensor network concentrators. The signal output terminal of the processing module is connected to the signal input terminal of the display module, the processing module communicates with the peripherals, the meter reading network interface module communicates with the processing module, the meter reading network interface module communicates with each sensor network concentrator, Each sensor network concentrator communicates with a meter reading sensor network of the same type; the advantage is that the meter reading network interface module adapts the communication hardware interface of the sensor network concentrator and is compatible with the communication of different meter reading sensor networks In the way of protocol, it realizes the support for various wired and wireless meter reading sensor networks, so it can support the simultaneous access of multiple meter reading sensor networks of different types, different frequency bands and even different architectures during deployment.

Description

A Smart Meter Reading Gateway Supporting Simultaneous Access of Multiple Types of Sensor Networks

technical field

The invention relates to an intelligent meter reading technology, in particular to an intelligent meter reading gateway supporting simultaneous access of multiple types of sensor networks.

Background technique

With the continuous development of communication technology, Internet technology and computer technology, all kinds of intelligent systems are widely used in modern buildings, and the intelligent meter reading system based on sensor network is one of the important applications. The meter system has the advantages of high degree of automation, wide coverage, fast response, high collection efficiency, convenient data management, and low labor and system maintenance costs. It is currently rapidly replacing the traditional manual meter reading method and becoming the mainstream solution for energy collection and measurement. An important symbol for solution and building automation.

The intelligent meter reading system generally expands the metering sensor, information processing and communication modules on the traditional meters (water, electricity, gas meters, etc.), and becomes a metering node with data collection, processing and transmission capabilities, and through the communication network The technology organizes several metering nodes to form a sensor network with a specific topology within a certain period of time. The sensor network summarizes the data collected by each metering node and submits it to the upper-level network through a static or dynamic organization. According to the scale of the network and actual application requirements, the intelligent meter reading system deploys data centralized equipment at the root node of a certain level of network to realize automatic reading of metering data. In the actual intelligent meter reading system, this type of data centralized The equipment often adopts a computer system with strong communication, data processing and data storage capabilities. This type of computer system can often configure and manage the lower-level network according to the actual application environment, and at the same time provide remote data services, thus becoming an intelligent meter reading gateway. .

At present, the mainstream intelligent meter reading system is divided into two types according to the network connection mode: wired and wireless. Forming a fixed acquisition network, this type of intelligent meter reading system has wiring problems, so the cost of deployment and maintenance is high, and the support for dynamic topology adjustment is poor. The wireless intelligent meter reading system utilizes the current fast-developing wireless communication technology and configures wireless communication modules on the metering nodes to realize wireless information exchange between nodes and between nodes and concentrators. At the same time, intelligent meter reading systems often Run a specific communication protocol to organize the wireless local area network between nodes to meet the actual use needs. This type of intelligent meter reading system has the characteristics of simple deployment, low maintenance cost, and strong ability to support dynamic topology. It has gradually become the current intelligent meter reading system. The mainstream communication network solutions for meter systems are typically radio frequency systems based on 433M, 470M, Zigbee, and Wifi technologies. At this stage, thanks to the large-scale development of mobile communication networks and operation services, various intelligent meter reading systems based on mobile communication technology have emerged as the times require. Combined with mature mobile operator networks, wireless intelligent meter reading systems In theory any area can be covered. However, due to the large variety and specifications of wireless modules, there are many types of wireless smart meters. Therefore, for specific projects, developers often need to customize the gateway according to the selected wireless modules. At present, the wireless intelligent meter reading system generally adopts a network of one type of nodes with a gateway. Since one gateway cannot manage different types of nodes, on the one hand, it causes a waste of gateway resources; on the other hand, if it is necessary to integrate multiple types of nodes , the gateway or a system configuration adaptation module on the upper level of the gateway is required to realize the compatibility of the protocol and data, which increases the complexity of the wireless intelligent meter reading system.

Contents of the invention

The technical problem to be solved by the present invention is to provide an intelligent meter reading gateway that can support simultaneous access of multiple types of sensor networks, which not only saves gateway resources, reduces the complexity of the intelligent meter reading system, and is compatible with common Wired meter reading sensor network and wireless meter reading sensor network, so as to realize unified management of heterogeneous networks.

The technical solution adopted by the present invention to solve the above-mentioned technical problems is: an intelligent meter reading gateway that supports simultaneous access of multiple types of sensor networks, including a processing module, a display module and peripherals, the signal output terminal of the processing module is connected to the The signal input terminal of the display module is connected, and the processing module communicates with the peripheral hardware, and it is characterized in that the intelligent meter reading gateway also includes a meter reading network interface module and a plurality of different types of sensor networks Concentrator, the meter reading network interface module communicates with the processing module, the meter reading network interface module communicates with each of the sensor network concentrators, and each of the sensor network The concentrator communicates with a meter reading sensor network of the same type;

The smart meter reading gateway has two working modes. The first working mode is the passive transmission of data by the meter reading sensor network, and the meter reading sensor network that is required to transmit data is defined as the target meter reading sensor network: the external It is assumed to obtain user input instructions, and transmit the user input instructions to the processing module; the processing module generates a control instruction including the target meter reading sensor network according to the received user input instructions, and transmits a control instruction including the target meter reading sensor network. The control command of the network is given to the described meter reading network interface module; the described meter reading network interface module determines the target meter reading sensor network according to the received control command containing the target meter reading sensor network, and determines the target meter reading sensor network and the target meter reading sensor network. The sensor network concentrator of the sensor network communication converts the control instructions containing the target meter reading sensor network into network instructions according to the communication protocol operated by the registered target meter reading sensor network, and finally transmits the network instructions to The sensor network concentrator communicating with the target meter reading sensor network; the sensor network concentrator communicating with the target meter reading sensor network controls the target meter reading sensor network to execute network instructions; the target meter reading sensor network The sensor network transmits the execution result to the described sensor network concentrator communicating with the target meter reading sensor network after executing the network instruction; the described meter reading network interface module communicates with the target meter reading sensor network according to the planned The sensor network concentrator communicates with the dispatch table and the registered target meter reading sensor network runs the communication protocol to obtain the execution result received by the sensor network concentrator communicating with the target meter reading sensor network , and analyze the obtained execution results; the meter reading network interface module transmits the analysis results to the processing module; the processing module transmits the analysis results to the display module and the peripherals;

The second working mode is that the meter reading sensor network actively transmits data, and the meter reading sensor network that actively transmits data is defined as an active meter reading sensor network: the active meter reading sensor network aggregates data information to the communication network In the sensor network concentrator, the meter reading network interface module communicates with the planned sensor network concentrator for active meter reading sensor network communication and the registered active meter reading sensor network The running communication protocol obtains the data information received by the sensor network concentrator communicating with the active meter reading sensor network, and analyzes the acquired data information; the meter reading network interface module transmits the analysis result to the described A processing module; the processing module transmits the parsing result to the display module and the peripherals.

The interface adaptation between the meter reading network interface module and each of the sensor network concentrators is realized through serial data communication.

Before the described meter reading network interface module runs, register the communication protocols of various types of meter reading sensor network operations in the described meter reading network interface module in advance; and plan to connect with the described meter reading network interface module A schedule of communications for each of the sensor network concentrators.

The smart meter reading gateway also includes a storage module, the storage module is connected to the processing module, the processing module transmits the analysis result to the storage module, and is stored by the storage module.

The smart meter reading gateway also includes a power supply module, and the power supply modules are respectively the processing module, the display module, the peripherals, the meter reading network interface module, each of the transmission The sense network concentrator and the storage module are powered.

Described processing module is made of low-power embedded microprocessor with data processing function, and described microprocessor is connected with described display module, described peripheral hardware, described meter reading network interface module respectively , The storage module communication.

The meter reading sensor network is a wired meter reading sensor network or a wireless meter reading sensor network; the wired meter reading sensor network is formed by energy meters deployed in different places through wired communication Self-organizing network; the wireless meter reading sensor network is an self-organizing network formed by energy metering instruments deployed in different places through wireless communication.

In the first working mode of the smart meter reading gateway, if there are multiple user input instructions obtained by the peripheral device, the processing module first inputs instructions to multiple users after receiving multiple user input instructions. Carry out caching and carry out follow-up processing to each user input instruction in turn; In the second working mode of the intelligent meter reading gateway, if there are multiple meter reading sensor networks that actively transmit data, then the described meter reading network interface module In turn, according to the planned communication schedule of the sensor network concentrator communicating with each active meter reading sensor network and the registered communication protocol for each active meter reading sensor network to obtain information related to each active meter reading sensor network The data information received by the sensor network concentrator of the table sensor network communication.

Compared with the prior art, the present invention has the advantages of:

1) The smart meter reading gateway adds a meter reading network interface module, which replaces the direct connection with the sensor network concentrator using a single communication interface. The meter reading network interface module is currently commonly used through adaptation The communication hardware interface of the sensor network concentrator and the communication protocol compatible with different meter reading sensor networks realize the support for various wired and wireless meter reading sensor networks, so it can support a variety of different types during deployment , different frequency bands or even different architectures of meter reading sensor networks can be connected at the same time, thus improving the current shortcoming that a smart meter reading gateway can only access one type of meter reading sensor network at the same time, and can realize the unification of heterogeneous networks management.

2) When the intelligent meter reading system using the smart meter reading gateway is implemented, only a small number of smart meter reading gateways can be used to realize the management coverage of the large-scale heterogeneous meter reading sensor network, which saves gateway resources on the one hand , thereby saving the hardware cost of the intelligent meter reading system and reducing the complexity of the intelligent meter reading system. Minimize the investment in the development of the meter reading system, improve the development efficiency, and shorten the development cycle.

Description of drawings

Fig. 1 is the composition block diagram of the intelligent meter reading gateway that supports multi-type sensor network to insert simultaneously of embodiment one;

Fig. 2 is a block diagram of an intelligent meter reading gateway supporting simultaneous access to multiple types of sensor networks in Embodiment 2.

detailed description

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

Embodiment one:

A kind of intelligent meter reading gateway that supports multiple types of sensor networks to be connected at the same time proposed in this embodiment, as shown in Figure 1, it includes a processing module 1, a display module 2, peripherals 3, a meter reading network interface module 4, Multiple different types of sensor network concentrators 5 (such as sensor network concentrator model CC1110-F32, sensor network concentrator model STM8L152C6, sensor network concentrator model CC2530, etc.), power supply module 6 , the power supply module 6 supplies power to the processing module 1, the display module 2, the peripherals 3, the meter reading network interface module 4, and each sensor network concentrator 5, the signal output terminal of the processing module 1 and the signal input terminal of the display module 2 connection, the processing module 1 communicates with the peripheral device 3, the meter reading network interface module 4 communicates with the processing module 1, the meter reading network interface module 4 communicates with each sensor network concentrator 5, and each sensor network concentrator 5 communicate with a meter reading sensor network (not shown in the figure) belonging to the same type.

The smart meter reading gateway has two working modes. The first working mode is the passive transmission of data by the meter reading sensor network, and the meter reading sensor network that is required to transmit data is defined as the target meter reading sensor network: Peripheral 3 acquisition The user inputs an instruction, and transmits the user input instruction to the processing module 1; the processing module 1 generates a control instruction including the target meter reading sensor network according to the received user input instruction, and transmits the control instruction including the target meter reading sensor network to the reading The meter network interface module 4; the meter reading network interface module 4 determines the target meter reading sensor network according to the received control instruction that includes the target meter reading sensor network, and determines the sensor network concentrator communicating with the target meter reading sensor network 5. Then, according to the communication protocol operated by the registered target meter reading sensor network, convert the control commands containing the target meter reading sensor network into network commands, and finally transmit the network commands to the sensor network communicating with the target meter reading sensor network Concentrator 5; the sensor network concentrator 5 that communicates with the target meter reading sensor network controls the target meter reading sensor network to execute network instructions; the target meter reading sensor network transmits the execution results to the target meter reading after executing the network instructions The sensor network concentrator 5 of sensor network communication; The communication protocol of network operation obtains the execution result received by the sensor network concentrator 5 communicating with the target meter reading sensor network, and analyzes the execution result obtained; the meter reading network interface module 4 transmits the analysis result to the processing module 1; the processing module 1. Transmit the analysis result to the display module 2 and the peripheral device 3.

The second working mode is that the meter reading sensor network actively transmits data, and the meter reading sensor network that actively transmits data is defined as the active meter reading sensor network: the active meter reading sensor network aggregates data information to the sensor network that communicates with it In the concentrator 5, the meter reading network interface module 4 obtains the communication protocol according to the planned communication protocol of the sensor network concentrator 5 communicating with the active meter reading sensor network and the registered active meter reading sensor network. The sensor network concentrator 5 of the active meter reading sensor network communication receives the data information, and analyzes the acquired data information; the meter reading network interface module 4 transmits the analysis result to the processing module 1; the processing module 1 transmits the analysis result to the display module 2 and peripheral 3.

Embodiment two:

The smart meter reading gateway proposed in this embodiment, which supports simultaneous access to multiple types of sensor networks, is improved on the basis of the smart meter reading gateway proposed in Embodiment 1, that is, a storage module is added. As shown in Figure 2, it is specifically: the intelligent meter reading gateway includes a processing module 1, a display module 2, peripherals 3, a meter reading network interface module 4, a plurality of different types of sensor network concentrators 5 (such as a model of CC1110-F32 sensor network concentrator, model STM8L152C6 sensor network concentrator, model CC2530 sensor network concentrator, etc.), power supply module 6 and storage module 7, power supply module 6 are processing module 1, display Module 2, peripheral equipment 3, meter reading network interface module 4, each sensor network concentrator 5, and storage module 7 supply power, the signal output end of the processing module 1 is connected with the signal input end of the display module 2, and the processing module 1 is connected to the external Let 3 communicate with each other, the meter reading network interface module 4 and the processing module 1 communicate with each other, the meter reading network interface module 4 and each sensor network concentrator 5 communicate with each other by sending and receiving two signal lines, each sensor network concentrator 5 It communicates with a meter reading sensor network (not shown in the figure) of the same type, and the storage module 7 is connected with the processing module 1 .

In the first working mode and the second working mode of the intelligent meter reading gateway, the processing module 1 also transmits the analysis result to the storage module 7, which is stored by the storage module 7, so that if the user wants to see the previous meter reading information, then The directly operable peripheral 3 is called by the processing module 1 and the analysis result stored in the storage module 7 is displayed on the display module 2 .

In each of the above embodiments, the multiple sensor network concentrators 5 of different types may be of different types, or part of the sensor network concentrators 5 may be of the same type.

In each of the above-mentioned embodiments, in the first working mode, the user can only input one user input command, and can also input multiple user input commands at the same time. When multiple user input commands are input, the intelligent meter reading gateway will The user input instructions are cached and processed sequentially to complete the meter reading tasks of multiple meter reading sensor networks; similarly, in the second working mode, one meter reading sensor network can actively transmit data, or multiple meter reading sensor networks can actively transmit data. A meter reading sensor network actively transmits data at the same time. When multiple meter reading sensor networks actively transmit data at the same time, the meter reading network interface module 4 communicates with the sensor network concentrator 5 planned to communicate with the active meter reading sensor network. The communication dispatch table sequentially processes the data information actively transmitted by multiple meter reading sensor networks to complete the meter reading tasks of multiple meter reading sensor networks.

In each of the above-mentioned embodiments, the processing module 1 mainly completes data processing, running software and coordinating the operation of each module. It is composed of a low-power embedded microprocessor with data processing functions, random access memory, clock circuit and peripheral auxiliary circuits. Microprocessor is connected with random access memory, clock circuit, peripheral auxiliary circuit respectively, and microprocessor communicates with display module 2, peripheral equipment 3, meter reading network interface module 4 respectively; power consumption of embedded microprocessors.

In each of the above-mentioned embodiments, the display module 2 directly adopts the existing LED display screen, which mainly displays the operating status of the gateway, collected data and gateway information, etc.; the peripheral device 3 can be a keyboard, and mainly completes receiving user input, feedback information, and providing data. service interface, etc.; the power supply module 6 directly adopts the prior art; the sensor network concentrator 5 can be the sensor network concentrator of the existing model CC1110-F32, the sensor network concentrator of the existing model STM8L152C6, the existing Some sensor network concentrators are CC2530. The sensor network concentrator 5 mainly manages the meter reading sensor network, collects data and responds to instructions from the meter reading network interface module 4 .

In each of the above-mentioned embodiments, the meter reading network interface module 4 mainly completes the hardware interface adaptation of the sensor network concentrator 5, the compatibility of the communication protocols of different types of meter reading sensor networks, the issuance of functional instructions, and the centralized operation of the sensor network. Functions such as obtaining meter reading data in the device 5. The meter reading network interface module 4 is in hardware, because the hardware interface of each sensor network concentrator 5 is different, so the meter reading network interface module 4 realizes the interface with each sensor network concentrator 5 uniformly through the serial data communication mode Adaptation; in terms of software, the meter reading network interface module 4 registers the communication protocols of various types of meter reading sensor network operations in the meter reading network interface module 4 in advance before running; and planning and meter reading network interface module 4 A schedule for communication of each sensor network concentrator 5 connected.

In each of the above-mentioned embodiments, the underlying interface communication protocol of the meter reading network interface module 4 and the sensor network concentrator 5 adopts the RS232 serial port communication protocol.

In the above-mentioned embodiment two, the storage module 7 directly adopts the prior art. For example, the storage module 7 is composed of a storage chip with a certain storage capacity and multiple erasing functions and an auxiliary circuit. The storage module 7 mainly completes the configuration information of the gateway and the operating parameters of the gateway. and storage and management of collected data.

In each of the above embodiments, the meter reading sensor network is a wired meter reading sensor network or a wireless meter reading sensor network; the wired meter reading sensor network is formed by energy meters deployed in different places through wired communication Self-organizing network; wireless meter reading sensor network is an self-organizing network formed by energy metering instruments deployed in different places through wireless communication. Each meter not only collects metering data, but also participates in data transmission in the meter reading sensor network, thereby realizing networked operation and management of a large number of energy metering meters. On the other hand, a meter reading sensor network also needs to adopt a unified communication protocol to ensure the accuracy and stability of data interaction between meters, so as to realize the effective operation of the meter reading sensor network, but different types of meter reading The communication protocols of the sensor network can also be varied.

In each of the above-mentioned embodiments, in the first working mode, the processing module 1 generates a control instruction including the target meter reading sensor network according to the received user input instruction, and the meter reading network interface module 4 generates the control instruction according to the registered target meter reading sensor network. The communication protocol conversion of the operation of the sensor network includes the control command of the target meter reading sensor network as a network command, and the execution results obtained by the analysis of the meter reading network interface module 4. These technologies can be realized on the basis of the above-mentioned technical solutions; in the second work In the mode, the meter reading network interface module 4 analyzes the acquired data information, and this technology can be realized on the basis of the above technical solution.

Claims (8)

1. the intelligent meter data recording gateway supporting polymorphic type sensing network to be concurrently accessed, including processing module, display module and peripheral hardware, the signal output part of described processing module is connected with the signal input part of described display module, described processing module intercoms mutually with described peripheral hardware, it is characterized in that this intelligent meter data recording gateway also includes check meter Network Interface Module and a multiple different types of sensing network concentrator, described Network Interface Module of checking meter intercoms mutually with described processing module, described Network Interface Module of checking meter intercoms mutually with each described sensing network concentrator, each described sensing network concentrator intercoms mutually with the sensing network of checking meter belonging to same type；

This intelligent meter data recording gateway has two kinds of mode of operations, the first mode of operation passively transmits data for sensing network of checking meter, the sensing network of checking meter being required transmission data is defined as target check meter sensing network: described peripheral hardware obtains user input instruction, and transmits user input instruction to described processing module；Described processing module generates according to the user input instruction that receives and comprises target and check meter the control instruction of sensing network, and transmits and comprise target and check meter the control instruction of sensing network to described Network Interface Module of checking meter；According to the check meter control instruction of sensing network of target that comprises received, described Network Interface Module of checking meter determines that target is checked meter sensing network, and determine sensing network of checking meter with target communicate described in sensing network concentrator, be converted to network instruction according to check meter communication protocol that sensing network runs of registered target by comprising the check meter control instruction of sensing network of target afterwards, last transmission network instruction give sensing network of checking meter with target communicate described in sensing network concentrator；Control target sensing network of checking meter perform network instruction with check meter sensing network concentrator described in sensing network communication of target；Target check meter sensing network transmit after having performed network instruction perform result to sensing network of checking meter with target communicate described in sensing network concentrator；Described Network Interface Module of checking meter obtains check meter the execution result that the sensing network concentrator described in sensing network communication receives with target according to the dispatch list of the sensing network concentrator communication checked meter described in sensing network communication with target planned and the registered target communication protocol that sensing network runs of checking meter, and resolves the execution result of acquisition；Described Network Interface Module transmission analysis result of checking meter is to described processing module；Described processing module transmission analysis result gives described display module and described peripheral hardware；

The second mode of operation is sensing network active transmission data of checking meter, the sensing network of checking meter of active transmission data is defined as sensing network of actively checking meter: sensing network of actively checking meter converges data message in the sensing network concentrator described in communicating with, described Network Interface Module of checking meter is according to the data message that communication protocol obtains with actively the sensing network concentrator checked meter described in sensing network communication receives with the dispatch list of the sensing network concentrator communication actively checked meter described in sensing network communication and registered sensing network operation of actively checking meter planned, and resolve the data message of acquisition；Described Network Interface Module transmission analysis result of checking meter is to described processing module；Described processing module transmission analysis result gives described display module and described peripheral hardware。

2. a kind of intelligent meter data recording gateway supporting polymorphic type sensing network to be concurrently accessed according to claim 1, it is characterised in that described checking meter realizes interface adaptation by serial data communication mode between Network Interface Module and each described sensing network concentrator。

3. a kind of intelligent meter data recording gateway supporting polymorphic type sensing network to be concurrently accessed according to claim 1 and 2, it is characterized in that described checking meter Network Interface Module before runtime, in described Network Interface Module of checking meter, register the communication protocol that various types of sensing network of checking meter runs in advance；And plan the dispatch list of each described sensing network concentrator communication being connected with described Network Interface Module of checking meter。

4. a kind of intelligent meter data recording gateway supporting polymorphic type sensing network to be concurrently accessed according to claim 1, it is characterized in that this intelligent meter data recording gateway also includes memory module, described memory module is connected with described processing module, described processing module transmission analysis result gives described memory module, by described memory module storage。

5. a kind of intelligent meter data recording gateway supporting polymorphic type sensing network to be concurrently accessed according to claim 4, it is characterized in that this intelligent meter data recording gateway also includes supply module, the respectively described processing module of described supply module, described display module, described peripheral hardware, described Network Interface Module of checking meter, each described sensing network concentrator, described memory module are powered。

6. a kind of intelligent meter data recording gateway supporting polymorphic type sensing network to be concurrently accessed according to claim 5, it is characterized in that described processing module is made up of the low-power-consumption embedded microprocessor with data processing function, described microprocessor respectively with described display module, described peripheral hardware, described Network Interface Module of checking meter, described memory module communication。

7. a kind of intelligent meter data recording gateway supporting polymorphic type sensing network to be concurrently accessed according to claim 1, it is characterised in that described sensing network of checking meter is wired sensing network or for radio meter register sensing network of checking meter；Described wired sensing network of checking meter is by being deployed in the self-organizing network that different local energy measurement instrument is formed by wired communication mode；Described radio meter register sensing network is by being deployed in the self-organizing network that different local energy measurement instrument is formed by wireless communication mode。

8. a kind of intelligent meter data recording gateway supporting polymorphic type sensing network to be concurrently accessed according to claim 1, it is characterized in that this intelligent meter data recording gateway is in the first mode of operation, if the user input instruction that described peripheral hardware obtains has multiple, then multiple user input instruction are first carried out buffer memory after receiving multiple user input instruction and successively each user input instruction are carried out subsequent treatment again by described processing module；This intelligent meter data recording gateway is in the second mode of operation, if the sensing network of checking meter of active transmission data has multiple, then described Network Interface Module of checking meter obtains, with the dispatch list of each sensing network concentrator communication actively checked meter described in sensing network communication and registered each communication protocol actively checking meter sensing network operation, the data message received with each sensing network concentrator actively checked meter described in sensing network communication according to what planned successively。