CN102426775A - Electric power consumption information acquisition device, electric power consumption information acquisition and transmission method and system - Google Patents

Abstract

The invention provides a power consumption information collection device, a power consumption information collection and transmission system and a method for collecting and transmitting power consumption information. The power consumption information collection device includes a data collection module, an EPON processing module and an optical transmission module. Wherein the data acquisition module obtains the collected data from the electric meter, the EPON processing module converts the collected data into EPON data suitable for transmission through the EPON system, and the optical sending module generates an optical signal based on the EPON data under the control of the EPON processing module, And send the optical signal through the optical fiber. By implementing the device, system and method of the present invention, the stability and transmission rate of power information transmission can be effectively improved to meet the requirements of real-time transmission.

Description

Electricity consumption information collection device, power consumption information collection and transmission method and system

technical field

The invention relates to the field of information collection and transmission, in particular to the collection and transmission of electricity consumption information.

Background technique

The power consumption information collection system has functions such as power information collection, power quality detection, power consumption analysis and management, and intelligent power consumption equipment information interaction. The existing electricity consumption information collection system mainly includes a main station system, a communication channel, a concentrator and a collector.

FIG. 1 is a structural diagram of an existing electricity consumption information collection system. Referring to FIG. 1 , the collector 11 is connected with the electric meter 10 , obtains collected data from the electric meter 10 , and sends the collected data to the concentrator 12 through the power carrier. The concentrator 12 is generally located in a community, and is used to collect data collected by multiple collectors 11 and send it to the master station system 13 through a communication channel. The communication channel is responsible for providing information exchange between the main station system 13 and the concentrator 12, and the main communication methods include GPRS and CDMA. The master station system 13 is responsible for analyzing and managing the received electric energy information.

However, the inventors of the present invention have found that the existing collection and transmission system can cause the following problems:

1. The power carrier method is used between the collector and the concentrator, but the power carrier method is easily affected by the power grid, causing the transmission signal of the high-frequency signal on the power line of the low-voltage station area to attenuate quickly, making the communication between the collector and the concentrator successful The rate is not high.

2. The communication between the concentrator and the main station system has the following problems due to the use of GPRS, CDMA, etc.: First, the signal is easily interfered, resulting in packet loss, prolonged transfer, unstable operation, and cannot guarantee timely handling of communication failures Second, the transmission data speed of this transmission method is low, and the maximum transmission rate is limited, which cannot guarantee the requirement of real-time transmission.

Contents of the invention

The inventors of the present invention have discovered the problems in the above-mentioned prior art, and therefore proposed a new technical solution for at least one of the problems.

An object of the present invention is to provide a power consumption information collection device, a power consumption information collection and transmission method and system, to ensure the stability and real-time performance of power consumption information collection.

According to one aspect of the present invention, there is provided a device for collecting electricity consumption information, including:

The data acquisition module is used to obtain the collected data from the electric meter;

EPON processing module, for converting the collected data into EPON data suitable for transmission through the EPON system;

An optical sending module, configured to generate an optical signal based on the EPON data under the control of the EPON processing module, and send the optical signal through an optical fiber.

Preferably, the data acquisition module has at least one interface, which is respectively connected to at least one electric meter in signal connection.

Preferably, the interface of the data acquisition module is an RS485 interface, which is used to maintain a signal connection with the electric meter through the RS485 bus.

Preferably, the power consumption information collection device further includes a FE interface module, the FE interface module is electrically connected to the EPON processing module, and serves as a debugging and maintenance port of the power consumption information collection device.

Preferably, the power consumption information collection device further includes a storage module for storing the collected data.

Preferably, the storage module includes FLASH and/or SRAM.

According to a second aspect of the present invention, a system for collecting and transmitting electricity consumption information is provided, including:

Electricity information collection equipment, the equipment includes a data collection module, an EPON processing module and an optical transmission module, wherein the data collection module is used to obtain collection data from an electric meter, and the EPON processing module is used to convert the collection data into suitable For EPON data transmitted through the EPON system, the optical sending module is used to generate an optical signal based on the EPON data under the control of the EPON processing module, and is configured to send the optical signal to an optical splitter through an optical fiber;

an optical splitter, connected to the optical sending module through an optical fiber, and used to send the optical signal sent by the optical sending module to an optical line terminal;

An optical line terminal is connected to the optical splitter and the main station system respectively, and is used to convert the optical signal sent by the optical splitter into an electrical signal and send it to the main station system;

The main station system is used to process the electrical signal sent by the optical line terminal, and control the power consumption information collection and transmission system.

Preferably, the data acquisition module has at least one interface, which is respectively connected to at least one electric meter in signal connection.

Preferably, the interface of the data acquisition module is an RS485 interface, which is used to maintain a signal connection with the electric meter through the RS485 bus.

Preferably, the power consumption information collection device of the power consumption information collection and transmission system further includes a FE interface module, the FE interface module is electrically connected to the EPON processing module, and is used for debugging and maintenance of the power consumption information collection device mouth.

Preferably, the power consumption information collection device of the power consumption information collection and transmission system further includes a storage module for storing the collected data.

Preferably, the storage module includes FLASH and/or SRAM.

According to a third aspect of the present invention, a method for collecting and transmitting electricity consumption information is provided, including:

S101. Obtaining collected data from the electric meter;

S102. Converting the collected data into EPON data suitable for transmission through the EPON system;

S103. Generate an optical signal based on the EPON data, and send the optical signal through an optical fiber.

Preferably, after step S101, the collected data is stored.

By adopting the power consumption information collection device of the present invention, the collection data can be obtained from multiple electric meters, and the collection data can be finally sent to the main station system through the EPON system. Since the power consumption information collection equipment transmits the collected data to the main station system through the EPON system, it avoids the phenomenon of high-frequency signal attenuation, packet loss, and extension when switching, and improves the stability of signal transmission. This will effectively reduce information packet loss, etc. This phenomenon improves the stability of power information transmission.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings.

Description of drawings

The accompanying drawings, which constitute a part of this specification, illustrate the embodiments of the invention and together with the description serve to explain the principles of the invention.

The present invention can be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

Fig. 1 is the structural schematic diagram of existing power consumption information collection system;

Fig. 2 is a schematic structural diagram of an embodiment of the electricity consumption information collection device of the present invention;

Fig. 3 is a schematic structural diagram of another embodiment of the electricity consumption information collection device of the present invention;

Fig. 4 is a schematic structural diagram of yet another embodiment of the electricity consumption information collection device of the present invention;

Fig. 5 is a schematic structural diagram of an embodiment of the electricity consumption information collection and transmission system of the present invention;

Fig. 6 is a schematic structural diagram of another embodiment of the electricity consumption information collection and transmission system of the present invention;

7 is a schematic structural diagram of another embodiment of the electricity consumption information collection and transmission system of the present invention;

FIG. 8 is a flow chart of an embodiment of the method for collecting and transmitting power consumption information of the present invention.

Detailed ways

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the Authorized Specification.

In all examples shown and discussed herein, any specific values should be construed as illustrative only, and not as limiting. Therefore, other examples of the exemplary embodiment may have different values.

It should be noted that like numerals and letters denote like items in the following figures, therefore, once an item is defined in one figure, it does not require further discussion in subsequent figures.

Fig. 2 is a schematic structural diagram of an embodiment of the electricity consumption information collection device of the present invention. Referring to FIG. 2 , the power consumption information collection device 21 includes a data collection module 211 , an EPON processing module 212 and an optical transmission module 213 .

Wherein, the data collection module 211 is used to obtain collection data from the electric meter. The data acquisition module 211 may be provided with at least one interface, and each interface shall maintain a signal connection with at least one ammeter respectively, which may be connected by RS485 bus. In this embodiment, the data acquisition module 211 is provided with two RS485 interfaces, and each interface maintains a signal connection with multiple electric meters through the RS485 bus. The data collection module 211 supports the collection and transparent transmission of electricity consumption information, and can not only collect the single-phase electric meter data of users, but also collect the three-phase electric meter data of special-purpose users. It should be noted that the number of interfaces is not limited to two; the types of interfaces are not limited to RS485 interfaces, and other types of interfaces can also be used, such as optical fiber interfaces and wireless transmission interfaces, as long as the data acquisition module can be connected to the electric meter signal.

The EPON processing module 212 is electrically connected to the data acquisition module 211, and can convert the collected data into EPON data suitable for transmission through the EPON system. For example, add the collected data to the EPON frame header and convert it to 1.25G/S positive emitter coupled logic level (PECL, Positive Emitter Coupled Logic).

The optical sending module 213 generates an optical signal based on the EPON data under the control of the EPON processing module 212 and sends it to the external line. For example, an optical signal with a wavelength of 1310 nm is generated and transmitted through an optical fiber.

The appearance of the power consumption information collection device of the present invention can be set according to certain specifications, for example, the configuration of the power consumption information collection device can be set according to the standard of the State Grid Q/GDW375.3-2009 collector type, and make it have a plug and play Use features. The power consumption information collection device of the present invention can also be integrated with a power supply module, which is used to convert the mains power into the working voltage required by the power consumption information collection device. For example, the power module outputs an appropriate working voltage, such as 3.3V or 5V, after the AC220 alternating current is filtered, surge protected, transformed and rectified. The normal working voltage of the power module can be AC220V±30%. In addition, it can guarantee to work normally for at least 4 hours under the extreme working condition of AC220V×1.9.

Adopting the electricity consumption information collection device of the present invention has the following advantages:

First, because the power consumption information collection equipment transmits the collected data to the main station system through the EPON system, it avoids the phenomenon of high-frequency signal attenuation, packet loss, and extension when switching, and improves the stability of signal transmission.

Second, due to the adoption of the EPON system, its bandwidth can be as high as Gigabit, which can meet the requirements of real-time transmission.

Thirdly, an electricity consumption information collection device of the present invention can be connected with 32 electric meters or even more electric meters, and this multi-point collection mode effectively reduces the cost.

Fig. 3 is a schematic structural diagram of another embodiment of the electricity consumption information collection device of the present invention. As shown in FIG. 3 , the power consumption information collection device 31 includes a data collection module 311 , an EPON processing module 312 , an optical transmission module 313 and an FE interface module 314 . Among them, the structure and function of the data acquisition module 311 , the EPON processing module 312 , and the optical transmission module 313 are the same as those of the corresponding modules in FIG. 2 . The FE interface module 314 is electrically connected to the EPON processing module 312 . In a normal collection process, the FE interface module 314 is used as a debugging and maintenance port of the power consumption information collection device 31, which is convenient for daily maintenance and debugging of the device. In addition, the FE interface module 314 can also be used as a data communication port, that is, directly connect the FE interface module 214 with the main station system, so as to send the collected data to the main station system.

Since the FE interface module 314 is provided, it is convenient to debug and maintain the power consumption information collection device 31 . In addition, a spare data communication port is also provided, which increases the selectivity of the data transmission mode.

Fig. 4 is a schematic structural diagram of another embodiment of the electricity consumption information collection device of the present invention. As shown in FIG. 4 , the power consumption information collection device 41 includes a data collection module 411 , an EPON processing module 412 , an optical sending module 413 and a storage module 415 . Wherein, the data collection module 411 , the EPON processing module 412 , and the optical sending module 413 are the same as the corresponding modules in FIG. 2 and FIG. 3 . The storage module 415 can store EPON data under the control of the EPON processing module 412 . The storage module 415 includes FLASH and/or SRAM. For example, the collected data can be temporarily stored in SRAM or stored in FLASH for the master station system to call.

It should be noted that the optical sending module in the above embodiment can also be replaced by an optical receiving module with dual functions of sending and receiving, so as to realize two-way communication. The wavelength of the sending light can be 1490nm, and the wavelength of receiving light can be 1310nm. Correspondingly, the uplink and downlink transmission speed can reach 1.25Gbps.

In another embodiment, the power consumption information collection device can also be integrated with a data collection module, an EPON processing module, an optical transmission module, an FE interface module, a storage module and a power supply module as required.

Fig. 5 is a schematic structural diagram of an embodiment of the electricity consumption information collection and transmission system of the present invention.

As shown in FIG. 5 , the power consumption information collection and transmission system includes a power consumption information collection device 51 , an optical splitter 52 , an optical line terminal 53 and a master station system 54 . The power consumption information collection device 51 is the same as the power consumption information collection device 21 in FIG. 2 , including a data collection module 511 , an EPON processing module 512 and an optical transmission module 513 .

Wherein, the data acquisition module 511 is provided with an RS485 interface, and can be connected to the electric meter by using the RS485 bus, so as to obtain the collected data of the electric meter. The EPON processing module 512 converts the collected data into EPON data suitable for transmission through the EPON system. For example, add EPON frame header to the collected data and convert it to 1.25G/S PECL. The optical sending module 513 generates an optical signal based on the EPON data under the control of the EPON processing module, and is configured to send the optical signal to the optical splitter 52 through an optical fiber. For example, an optical signal with a wavelength of 1310 nm is generated and transmitted through an optical fiber. The electricity consumption information collection device 51 can generally be set at the corridor or the unit, and is used to collect the electricity meter data of the residents in the corridor or the unit.

The optical splitter 52 is connected to at least one telecommunication collection device 51 through an optical fiber, and can send the optical signal sent by the optical sending module 413 to the optical line terminal. Specifically, the optical splitter 52 is connected to the optical sending module 513 in the telecommunication collection device 51 through an optical fiber. In this embodiment, the optical splitter 52 can be connected to 32 power consumption information collection devices. Of course, different splitting ratios can be selected according to actual needs, for example, the splitting ratio is 1:8, 1:16 or 1:64. The optical splitter 52 can be installed in the residential area, and is connected with the electricity consumption information collection equipment 51 installed in each corridor, and is responsible for collecting the electricity meter information of the entire residential area. An optical splitter can be connected to multiple power consumption information collection devices, and finally collect the data of thousands of electric meters to meet the multi-point requirements of power collection and effectively reduce costs; in addition, a variety of suitable topologies can be used according to needs structure, so that any power consumption information collection device will not affect the normal operation of other power consumption information collection devices.

Then, the optical line terminal 53 converts the optical signal sent by the optical splitter 52 into an electrical signal, and sends it to the main station system 54 through the FE interface of the optical line terminal 53 . It should be noted that the optical line terminal 53 can also send data through the optical splitter to the electricity consumption information collection device or the electricity meter according to the command of the main station system, so as to realize the downlink transmission of data.

Finally, the main station system 54 analyzes and processes the optical signal sent by the optical line terminal 53 . The analysis and processing performed by the master station system 54 is not limited to automatic meter reading, but is also used to control the entire electricity consumption information collection and transmission system, and complete services such as cost control, customer analysis, and electricity consumption inspection.

This system is compatible with international EPON IEEE802.3ah, IEEE802.3-2005 standards, and compatible with domestic operators EPON standards, such as compatible with China Telecom EPON technical requirements V2.1. In addition, this system also meets the national grid power consumption information collection specifications, supports the transparent transmission of the DLT645-2007 protocol and the processing of the Q/GDW376.1 protocol. Adopting the system of the present invention to collect and transmit the electric meter data effectively improves the stability of signal transmission, satisfies the requirement of real-time data transmission, and effectively reduces the transmission cost. In addition, compared with the communication methods of GPRS and CDMA, the confidentiality of data transmission by the system of the present invention is better, and the security of transmission is ensured.

Fig. 6 is a schematic structural diagram of another embodiment of the electricity consumption information collection and transmission system of the present invention. As shown in FIG. 6 , the power consumption information collection and transmission system includes a power consumption information collection device 61 , an optical splitter 62 , an optical line terminal 63 and a master station system 64 .

The power consumption information collection device 61 has the same structure and function as the power consumption information collection device 31 in FIG. The data acquisition module 611 is provided with at least one interface, and each interface maintains a signal connection with at least one electric meter, so as to obtain the collected data of the electric meter. Its connection mode can be connected by RS485 bus. The EPON processing module 612 converts the acquired collected data into EPON data suitable for transmission through the EPON system, for example, adds an EPON frame header to the collected data and converts it into 1.25G/S PECL. Of course, other methods can also be used to convert to EPON data. The optical sending module 513 generates an optical signal based on the EPON data under the control of the EPON processing module, and is configured to send the optical signal to the optical splitter 62 through an optical fiber. For example, an optical signal with a wavelength of 1360 nm is generated and transmitted through an optical fiber. The FE interface module 614 is electrically connected to the EPON processing module 612 . In a normal collection process, the FE interface module 614 is used as a debugging and maintenance port of the power consumption information collection device 62 , so as to facilitate daily maintenance and debugging of the power consumption information collection device 62 . In addition, the FE interface module 514 can also be used as a data communication port, that is, the FE interface module 614 is directly connected to the main station system 64, so as to send the collected data to the main station system 64, which increases the selectivity of the collected data transmission mode. The optical splitter 62 , the optical line terminal 63 and the main station system 64 are the same as the corresponding equipment in FIG. 5 , and will not be repeated here.

Fig. 7 is a schematic structural diagram of another embodiment of the electricity consumption information collection and transmission system of the present invention. As shown in FIG. 7 , the power consumption information collection and transmission system includes a power consumption information collection device 71 , an optical splitter 72 , an optical line terminal 73 and a master station system 74 . The power consumption information collection device 71 has the same structure and function as the power consumption information collection device 41 in FIG. The data acquisition module 711 can be provided with at least one interface, and each interface maintains a signal connection with at least one ammeter respectively, and uses RS485 bus for connection, so as to obtain the collected data of the ammeter. The EPON processing module 712 converts the acquired collected data into EPON data suitable for transmission through the EPON system, for example, adds an EPON frame header to the collected data and converts it into 1.25G/S PECL. Based on the EPON data, the optical sending module 713 generates an optical signal under the control of the EPON processing module 712 and is configured to send the optical signal to the optical splitter 72 through an optical fiber. The storage module 715 is used for storing EPON data under the control of the EPON processing module 712 . The storage module 715 includes FLASH and/or SRAM. For example, the collected data can be temporarily stored in the SRAM to ensure real-time transmission of the collected data; or the collected data can be stored in the FLASH, and the data can be transmitted according to the call command of the master station system 74 . The optical splitter 72 , the optical line terminal 73 and the main station system 74 are the same as the corresponding equipment in FIG. 5 and FIG. 6 , and will not be repeated here.

The power consumption information collection equipment in the power consumption information collection and transmission system can also be integrated with a data collection module, an EPON processing module, an optical transmission module, an FE interface module, a storage module and a power supply module as required.

It should be noted that the optical sending module in the above embodiment can be replaced by an optical receiving module with dual functions of sending and receiving, so as to realize two-way communication. The wavelength of the sending light can be 1490nm, and the wavelength of receiving light can be 1310nm. Correspondingly, the uplink and downlink transmission speed can reach 1.25Gbps.

FIG. 8 is a flow chart of an embodiment of the method for collecting and transmitting power consumption information of the present invention.

As shown in Figure 8, the method for collecting and transmitting electricity consumption information in the present invention includes:

S101. Obtaining collected data from the electric meter;

The data acquisition module can be used to obtain the collected data from the electric meter. The data acquisition module may be provided with multiple interfaces, and each interface maintains signal connection with multiple electric meters respectively. Therefore, the data collection module can collect data of multiple electric meters at the same time.

S102. Converting the collected data into EPON data suitable for transmission through the EPON system;

Use the EPON processing module to convert the collected data into EPON data suitable for transmission through the EPON system. For example, the collected data is added with an EPON frame header and converted into 1.25G/S PECL, or converted by other methods known in the art.

S103. Generate an optical signal based on the EPON data, and send the optical signal through an optical fiber.

The optical signal can be generated by the optical sending module and sent to the external line. For example, an optical signal with a wavelength of 1310 nm is generated by an optical transmission module and transmitted through an optical fiber. Specifically, the optical signal can be sent from the optical transmission module to the optical splitter, and then sent to the optical line terminal by the optical splitter, and finally the optical line terminal converts the optical signal into an electrical signal and sends it to the main station through the FE interface system for analysis.

It should be noted that the power consumption information transmission may be bidirectional transmission, not limited to uplink transmission. For example, the optical line terminal can be used to send data through the optical splitter to the power consumption information collection device or the electric meter according to the command of the main station system, so as to complete the downlink transmission of data.

Preferably, after step S101, the collected data is stored. For example, the collected data can be temporarily stored in SRAM or stored in FLASH for the master station system to call. This can not only ensure the real-time transmission of data, but also transmit data when needed.

Although some specific embodiments of the present invention have been described in detail through examples, those skilled in the art should understand that the above examples are for illustration only, rather than limiting the scope of the present invention. Those skilled in the art will appreciate that modifications can be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims (14)

1. power information collecting device comprises:

Data acquisition module is used for obtaining image data from ammeter;

The EPON processing module is used for converting said image data to be suitable for through the EPON system transmissions EPON data;

Optical transmission module is used under said EPON processing module control, generating light signal based on said EPON data, and sends said light signal through optical fiber.

2. power information collecting device as claimed in claim 1, wherein said data acquisition module has at least one interface, is connected with at least one ammeter holding signal respectively.

3. power information collecting device as claimed in claim 2, the said interface of wherein said data acquisition module is the RS485 interface, is used for being connected with the ammeter holding signal through the RS485 bus.

4. power information collecting device as claimed in claim 1 also comprises the FE interface module, and said FE interface module is electrically connected with said EPON processing module, as the debugging maintenance mouth of said power information collecting device.

5. power information collecting device as claimed in claim 1 also comprises memory module, is used to store said image data.

6. power information collecting device as claimed in claim 5, wherein said memory module comprises FLASH and/or SRAM.

7. power information collection and transmission system comprise:

The power information collecting device; Said equipment comprises data acquisition module, EPON processing module and optical transmission module; Wherein said data acquisition module is used for obtaining image data from ammeter; Said EPON processing module is used for converting said image data to be suitable for through the EPON system transmissions EPON data, and said optical transmission module is used under said EPON processing module control, generating light signal based on said EPON data, and is configured to through optical fiber light signal is sent to optical branching device;

Optical branching device is connected through optical fiber with said optical transmission module, is used for the light signal that said optical transmission module sends is sent to optical line terminal;

Optical line terminal is connected respectively with main station system with said optical branching device, is used for the light signal that said optical branching device sends is converted into electric signal and is sent to said main station system;

Main station system is used for the electric signal that said optical line terminal sends is handled, and said power information collection and transmission system is controlled.

8. power information collection as claimed in claim 7 and transmission system, wherein said data acquisition module has at least one interface, is connected with at least one ammeter holding signal respectively.

9. power information collection as claimed in claim 8 and transmission system, the said interface of wherein said data acquisition module is the RS485 interface, is used for being connected with the ammeter holding signal through the RS485 bus.

10. power information collection as claimed in claim 7 and transmission system also comprise the FE interface module, and said FE interface module is electrically connected with said EPON processing module, as the debugging maintenance mouth of said power information collecting device.

11. power information collection as claimed in claim 7 and transmission system also comprise memory module, are used to store said image data.

12. power information collection as claimed in claim 11 and transmission system, wherein said memory module comprises FLASH and/or SRAM.

13. a method that is used to gather and transmit power information comprises:

S101. obtain image data from ammeter;

S102. convert said image data to be suitable for EPON data through the EPON system transmissions;

S103. generate light signal based on said EPON data, and send said light signal through optical fiber.

14. method as claimed in claim 13 also comprises:

After step S101, store said image data.

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