CN111896908A - Test system and test method of intelligent instrument - Google Patents

Abstract

The application discloses a test system and a test method for an intelligent instrument. Wherein, the test system includes: multiple shielding devices for placing multiple smart meters, wherein the multiple smart meters include at least: dual-mode II collector, electric energy meter, water meter, gas meter and heat meter, dual-mode II The type collector can collect the following data at the same time: electricity, water, gas and heat energy costs; attenuators, which are arranged between multiple shielding devices, used to connect multiple shielding devices; test terminals, which are connected with multiple shielding devices. A shielding device communication connection is used to test the communication performance and electrical performance of multiple smart meters; the terminal is arranged between the test terminal and the shielding device, and is used to realize the networking function of multiple smart meters in the multiple shielding devices. The present application solves the technical problem of the lack of comprehensive testing equipment for communication interface electrical performance testing, communication performance, etc., which can cover smart meters such as electricity, water, gas, and heat.

Description

Test system and test method of intelligent instrument

technical field

The present application relates to the field of instrument testing, and in particular, to a testing system and a testing method for an intelligent instrument.

Background technique

With the successive introduction of policies to support the data collection and collection of electricity, water, gas, and heat energy, in order to ensure the data accuracy and collection success rate of the multi-meter acquisition system, the detection device and detection method in the construction of the multi-meter acquisition system have become a important part. At present, multi-meter collection is carried out through dual-mode II collectors, the local communication backbone network adopts broadband power line carrier communication, and the terminal water, gas, and heat smart meters are realized by micro-power wireless communication. When the multi-meter acquisition system is tested and detected, the detection environment is manually built, the operation is complex, dangerous, and the human interference factors are serious, and the comprehensive detection of the communication performance, communication protocol and other items of the smart meter cannot be realized.

Combined with the characteristics of various types of meters used on site, diversified interfaces and communication channels, and non-uniform communication protocols, in order to ensure that the compatibility and functions of all networked equipment meet the requirements, and reduce the loss of meter data due to product quality, poor compatibility, communication, etc. Instability and high maintenance rate. There is an urgent need for comprehensive testing equipment and methods for electrical performance testing and communication performance of communication interfaces (such as micro-power wireless, RS-485, M-Bus interfaces) that can cover smart meters such as electricity, water, gas, and heat.

For the above problems, no effective solution has been proposed yet.

SUMMARY OF THE INVENTION

The embodiments of the present application provide a test system and a test method for a smart meter, so as to at least solve the lack of comprehensive testing equipment for communication interface electrical performance testing, communication performance, etc. that can cover smart meters such as electricity, water, gas, and heat technical issues.

According to an aspect of the embodiments of the present application, a test system for a smart meter is provided, including: multiple shielding devices for placing multiple smart meters, wherein the multiple smart meters at least include: a dual-mode II collector, Electric energy meter, water meter, gas meter and heat meter, the dual-mode II collector can collect the following data at the same time: electricity, water, gas and heat; attenuator, set between multiple shielding devices, used to connect multiple A shielding device; a test terminal, connected to one shielding device among multiple shielding devices, and used to test the communication performance and electrical performance of multiple smart meters; The networking function of multiple smart meters in a shielded device.

Optionally, the shielding device includes at least two layers, wherein the first layer of the shielding device is used to place the communication unit test fixture, and the communication unit test fixture is used to connect the communication modules and power supply modules of multiple smart meters; Layers are used to place multiple smart meters.

Optionally, a broadband power line carrier communication mode is used for communication between multiple shielding devices.

Optionally, the terminal communicates with the test terminal through Ethernet, and the terminal communicates with the shielding device through broadband power line carrier communication.

Optionally, the dual-mode II collector communicates with the water meter, gas meter and heat meter through micro-power wireless communication, the dual-mode II collector communicates with the electric energy meter through the RS485 bus, and the dual-mode II collector communicates with the electric energy meter through the RS485 bus. It communicates with the terminal by means of broadband power line carrier communication.

Optionally, the dual-mode II collector can also be connected to water meters, gas meters and heat meters that support the M-Bus remote meter reading system bus.

Optionally, the shielding device can shield micro-power wireless signals of 470MHz to 510MHz.

Optionally, the operating frequency of the attenuator can be adjusted within a preset operating frequency range according to the number of shielding devices.

Optionally, the test system is powered by an independent power module.

According to another aspect of the embodiments of the present application, a method for testing smart meters is also provided. The testing method is applied to the above-mentioned test system to test the communication performance and electrical performance of multiple smart meters, including: according to the number of shielding devices Set the working frequency of the attenuator; control the terminal to query the routing network topology information to complete the networking of multiple smart meters; control the test terminal to collect the following data collected by the dual-mode II collector for many times: electricity, water, gas and heat. According to the success rate of data collected by the dual-mode II collector, it is judged whether the communication performance and electrical performance of multiple smart meters meet the requirements.

In an embodiment of the present application, a test system for a smart meter is provided, including: multiple shielding devices for placing multiple smart meters, wherein the multiple smart meters at least include: a dual-mode II type collector, an electric energy meter , water meter, gas meter and heat meter, the dual-mode II collector can simultaneously collect the following data: electricity bill, water bill, gas bill and thermal energy bill; attenuator, set between multiple shielding devices, used to connect multiple shielding devices Equipment; test terminal, communicated with one shielding device among multiple shielding devices, used to test the communication performance and electrical performance of multiple smart meters; terminal, set between the test terminal and the shielding device, used to realize multiple shielding The networking function of multiple smart meters in the device realizes the communication interface (such as micro-power wireless, RS-485, M- Bus interface) electrical performance test, communication performance and other comprehensive testing technical effects, thus solving the current lack of comprehensive testing equipment for communication interface electrical performance testing and communication performance that can cover smart meters such as electricity, water, gas, heat, etc. technical problem.

Description of drawings

The drawings described herein are used to provide further understanding of the present application and constitute a part of the present application. The schematic embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation of the present application. In the attached image:

1 is a structural block diagram of a test system for a smart meter according to an embodiment of the present application;

2 is a schematic structural diagram of a shielding device according to an embodiment of the present application;

3 is a schematic structural diagram of a test system for a smart meter according to an embodiment of the present application;

FIG. 4 is a flowchart of a method for testing a smart meter according to an embodiment of the present application.

Detailed ways

In order to make those skilled in the art better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only The embodiments are part of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the scope of protection of the present application.

It should be noted that the terms "first", "second" and the like in the description and claims of the present application and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It is to be understood that data so used may be interchanged under appropriate circumstances so that the embodiments of the application described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having" and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those expressly listed Rather, those steps or units may include other steps or units not expressly listed or inherent to these processes, methods, products or devices.

1 is a structural block diagram of a test system for a smart meter according to an embodiment of the present application. As shown in FIG. 1 , the test system includes:

A plurality of shielding devices 10 are used to place a plurality of smart meters, wherein the plurality of smart meters at least include: a dual-mode type II collector, an electric energy meter, a water meter, a gas meter and a heat meter, and the dual-mode type II collector can collect data simultaneously The following data: electricity, water, gas and heat;

Optionally, the shielding device 10 uses a low-frequency small shielding device (which can shield micropower wireless signals of 470MHz-510MHz) to avoid interference between the dual-mode II collector and the micropower water-gas heat meter in each shielding device.

The dual-mode II collector supports two communication modes, power line carrier communication and micro-power wireless communication. It can interact with the concentrator or local equipment through the power line carrier channel and the micro-power wireless channel to realize the functions of remote meter reading and local meter reading.

The attenuator 12 is arranged between the plurality of shielding devices 10 and is used for connecting the plurality of shielding devices 10;

The test terminal 14 is connected in communication with one shielding device 10 among the multiple shielding devices 10, and is used for testing the communication performance and electrical performance of the multiple smart meters;

The terminal 16 is arranged between the test terminal 14 and the shielding device 10 , and is used to realize the networking function of multiple smart meters in the multiple shielding devices 10 .

Through the above system, the electrical performance test and communication performance of the communication interface (such as micro-power wireless, RS-485, M-Bus interface) of the dual-mode type II collector, electricity, water, gas, heat and other smart meters can be integrated. sex test.

According to an optional embodiment of the present application, the shielding device 10 includes at least two layers, wherein the first layer of the shielding device 10 is used to place a communication unit test fixture, and the communication unit test fixture is used to connect the communication modules of multiple smart meters and power supply module; the second layer of shielding device 10 is used to place multiple smart meters.

According to an optional embodiment of the present application, the communication between multiple shielding devices 10 is carried out in a broadband power line carrier communication manner.

In an optional embodiment of the present application, the terminal 16 communicates with the test terminal 14 through Ethernet, and the terminal 16 communicates with the shielding device 10 through broadband power line carrier communication.

FIG. 2 is a schematic structural diagram of a shielding device according to an embodiment of the present application. As shown in FIG. 2 , the shielding device is a shielding box, and the shielding box has two layers. Water, gas, heat meter. Communication between the shielding boxes is carried out through broadband power line carrier (HPLC); Ethernet communication is used between the shielding boxes and the test terminal.

According to an optional embodiment of the present application, the communication unit test fixture includes:

(1) Three-phase four-wire power interface, which can be connected to 380V power supply

(2)Ethernet interface

(3) Control board power interface, can be connected to 24V power supply

(4) Single-phase HPLC module weak current interface

(5) Single-phase HPLC module strong current interface

(6) Single-phase HPLC module card slot, a total of 15

(7) Universal card slot for single/three-phase HPLC module, a total of 5

(8) Universal card slot for single/three-phase HPLC module, strong current interface for single-phase HPLC module

(9) Universal card slot for single/three-phase HPLC module, strong current interface for three-phase HPLC module

(10) Dual-mode II collector 485 interface/electric energy meter universal 485 interface

(11) 220V power interface of dual-mode II collector

(12) Dual-mode II collector card slots, 5 in total

(13) Module communication indicator

In some optional embodiments of the present application, the dual-mode type II collector communicates with the water meter, gas meter and heat meter by means of micro-power wireless communication, and the dual-mode type II collector communicates with the electric energy meter through the RS485 bus , the dual-mode II collector communicates with the terminal 16 by means of broadband power line carrier communication.

According to an optional embodiment of the present application, the dual-mode II collector can also be connected to a water meter, a gas meter, and a heat meter that support the M-Bus remote meter reading system bus.

According to an optional embodiment of the present application, the shielding device 10 can shield micro-power wireless signals of 470MHz˜510MHz.

In another optional embodiment of the present application, the operating frequency of the attenuator 12 can be adjusted within a preset operating frequency range according to the number of shielding devices 10 . There is a 30dB attenuator between each shielding device 10, which can be set between 0 and 60dB as required. Using adjustable attenuator, can build star topology, tree topology test environment.

Optionally, the above test system is powered by an independent power module. The use of precision purified regulated power supply provides an independent power supply environment to achieve HPLC signal isolation.

3 is a schematic structural diagram of a test system for a smart meter according to an embodiment of the present application, and the test system shown in FIG. 3 is described in detail below:

1. Ethernet communication is used between the terminal (ie the terminal 16 above) and the test computer (the test terminal 14 above); the terminal can be replaced with a virtual terminal.

2. HPLC communication is used between the terminal and each shielding box (shielding device 10 above); the shielding box can be placed in a cabinet.

3. The shielding box shields the micro-power wireless signal between 470MHz and 510MHz, so that the space signal between each shielding box is isolated.

4. The smart meter in the shielded box supports HPLC communication (supports multiple), and the single/bidirectional water meter, gas meter, and heat meter all support micro-power wireless communication (supports multiple).

5. The dual-mode II collector is networked with the terminal through HPLC communication, collects single/two-way water meters, gas meters, and heat meters through micro-power wireless communication, and collects 485 smart energy meters through RS485.

6. There is a 30dB attenuator between each shielding box, which can be set between 0 and 60dB according to needs;

7. The number of shielding boxes can be increased or decreased as required. For example, if there are 15 shielding boxes, the attenuators are all set to 30dB, which can form a 15-level topology environment; if the attenuators are all set to 0dB, it can form a 1-level topology or a 2-level topology environment.

8. In the shielding box, the dual-mode II collector can also be extended to connect to the water, gas, and heat smart meters that support M-Bus.

FIG. 4 is a flowchart of a test method for a smart meter according to an embodiment of the present application. As shown in FIG. 4 , the test method is applied to the test system shown in FIG. 1 to test the communication performance and electrical performance of multiple smart meters. Test, including the following steps:

Step S402, setting the operating frequency of the attenuator according to the number of shielding devices. Set the value of the attenuator to build a level 15/level 7 topology environment.

Step S404, the control terminal queries the routing network topology information to complete the networking of multiple smart meters. Initialize the terminal, clear the communication information of the slave node; send the intelligent meter (dual-mode II collector, electricity, water, gas, heat meter) slave node file information to the terminal; query the routing network topology information (HPLC), and wait for networking Finish.

In step S406, the test terminal is controlled to collect the following data collected by the dual-mode II collector for multiple times: electricity fee, water fee, gas fee and thermal energy fee.

In step S408, it is judged whether the communication performance and electrical performance of the plurality of smart meters meet the requirements according to the success rate of data collection by the dual-mode II collector. Collect smart meter data in multiple rounds; the collection success rate is required to be ≥99%.

Through the above method, the electrical performance test and communication performance of the communication interface (such as micro-power wireless, RS-485, M-Bus interface) of the dual-mode II collector, electricity, water, gas, heat and other smart meters can be integrated. sex test.

It should be noted that, for the preferred implementation of the embodiment shown in FIG. 4 , reference may be made to the relevant description of the embodiment shown in FIG. 1 , which will not be repeated here.

The above-mentioned serial numbers of the embodiments of the present application are only for description, and do not represent the advantages or disadvantages of the embodiments.

In the above-mentioned embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

In the several embodiments provided in this application, it should be understood that the disclosed technical content may be implemented in other ways. The device embodiments described above are only illustrative, for example, the division of the units may be a logical function division, and there may be other division methods in actual implementation, for example, multiple units or components may be combined or Integration into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of units or modules, and may be in electrical or other forms.

The units described as separate components may or may not be physically separated, and components shown as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.

The integrated unit, if implemented in the form of a software functional unit and sold or used as an independent product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solutions of the present application can be embodied in the form of software products in essence, or the parts that contribute to the prior art, or all or part of the technical solutions, and the computer software products are stored in a storage medium , including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: U disk, read-only memory (ROM, ReBJDLd-Only Memory), random access memory (RBJDLM, RBJDLndom BJDLccess Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes .

The above are only the preferred embodiments of the present application. It should be pointed out that for those skilled in the art, without departing from the principles of the present application, several improvements and modifications can also be made. It should be regarded as the protection scope of this application.

Claims (10)

1. A test system for a smart meter, comprising:

a plurality of shielding devices for housing a plurality of smart meters, wherein the plurality of smart meters includes at least: the system comprises a dual-mode II-type collector, an electric energy meter, a water meter, a gas meter and a heat meter, wherein the dual-mode II-type collector can simultaneously collect the following data: electricity, water, gas and heat charges;

the attenuator is arranged among the shielding devices and used for connecting the shielding devices;

the test terminal is in communication connection with one of the shielding devices and used for testing the communication performance and the electrical performance of the intelligent instruments;

and the terminal is arranged between the test terminal and the shielding equipment and used for realizing the networking function of a plurality of intelligent instruments in the plurality of shielding equipment.

2. The test system of claim 1, wherein the shielding device comprises at least two layers, wherein,

the first layer of the shielding equipment is used for placing a communication unit test fixture, and the communication unit test fixture is used for connecting the communication modules and the power supply modules of the intelligent instruments;

the second layer of the shielding device is used for placing the plurality of intelligent meters.

3. The test system of claim 2, wherein the plurality of shielding devices communicate with one another using broadband power line carrier communication.

4. The test system of claim 2, wherein the terminal and the test terminal communicate via ethernet, and wherein the terminal and the shielding device communicate via broadband power line carrier communication.

5. The test system according to claim 2, wherein the dual-mode II-type collector communicates with the water meter, the gas meter and the heat meter in a micro-power wireless communication manner, communicates with the electric energy meter through an RS485 bus, and communicates with the terminal in a broadband power line carrier communication manner.

6. The test system of claim 5, wherein the dual mode type II collector is further accessible to a water meter, a gas meter, and a heat meter supporting an M-Bus remote meter reading system Bus.

7. The test system of claim 1, wherein the shielding device can shield micropower wireless signals between 470MHz and 510 MHz.

8. The test system of claim 1, wherein the operating frequency of the attenuator is adjustable within a predetermined operating frequency range based on the number of shielding devices.

9. The test system according to any one of claims 1 to 8, wherein the test system is powered by an independent power module.

10. A method for testing smart meters, which is applied to the test system of any one of claims 1 to 9 to test the communication performance and the electrical performance of the plurality of smart meters, and comprises the following steps:

setting the working frequency of the attenuator according to the number of the shielding devices;

controlling the terminal to inquire the topological information of the routing network, and finishing the networking of the plurality of intelligent meters;

controlling the test terminal to acquire the following data acquired by the dual-mode II-type acquisition device for multiple times: electricity, water, gas and heat charges;

and judging whether the communication performance and the electrical performance of the intelligent instruments meet the requirements or not according to the success rate of the data acquired by the dual-mode II-type collector.

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