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HTCWZ895 type centralized copying system
HTCWZ895 type centralized copying system
Product details
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HTCWZ895 type centralized copying system
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| Introduction: The structure of the HTCWZ895 centralized meter reading system, consisting of a carrier concentrator, acquisition terminal, and carrier energy meter, is shown in the following figure. The collection terminal is connected to the electricity meter through RS-485 bus and reads the electricity meter data; Then transmit the data to the carrier concentrator through power line carrier; The carrier energy meter communicates directly with the carrier concentrator through the power carrier. One distribution transformer requires one concentrator, and each unit or meter box requires one or more collection terminals. The concentrator communicates with the collection terminals through power line carriers, and each collection terminal can be equipped with 128 time-sharing electricity meters; The collection terminal communicates with the time-sharing meter through RS485 bus. Power companies can collect meter data into marketing systems or other systems that require this data through remote communication (such as CDMA, GPRS, etc.) or local communication (infrared, RS232, wireless data transmission). The hardware of the system is reliable and easy to construct; The software interface is user-friendly and powerful; The system structure is flexible and supports multiple communication methods. This product can be used for remote meter reading and comprehensive management in various residential areas. |
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This system is tailored to the characteristics of China's power grid, integrating pattern recognition, fuzzy control, and modern signal processing technologies in signal processing, expanding pure spread spectrum theory, and adopting automatic routing technology, greatly improving communication capabilities, adapting to the situation of China's low-voltage power grid, and ensuring reliable data communication. At present, this technology has reached international standards in stability, reliability, and communication capabilities. The product is widely used for data acquisition, analysis, and control of electric energy meters, and has a very broad application prospect.
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| The system currently includes five meter reading methods, GSM、 Power line carrier+infrared, power line carrier+wireless data transmission module, power line carrier+CDMA, power line carrier+GPRS. If a GSM meter reading and collection terminal is installed, the electricity can be read by selecting the community or house number; The meter reader can read the data of the electricity meter by operating it on the client's machine. If a power line carrier+infrared system or a power line carrier+wireless data transmission module is installed, the meter reader needs to download the meter reading information into the handheld meter reading device through the main software; Then bring the handheld device to the concentrator installation site and read the meter data through infrared communication or RS232 serial port. If it is a CDMA or GPRS system, the meter reader only needs to issue meter reading instructions through the main station software, and the system automatically establishes a virtual private network link based on CDMA or GPRS communication. This communication system ensures both real-time performance and the security of communication data. The data of the electricity meter is collected through a virtual private network and stored on the database server of the power supply company. Our HTCWZ895 centralized meter reading system fully considers the actual situation and needs of the power supply department, and adopts dual track management of power user information, which not only conforms to the current meter reading process but also considers the needs of meter reading reform. Specifically, there are two sets of tree structures for organizing electricity user information. Residential users who require meter reading can be accessed and designated according to the hierarchy of substations, lines, distribution transformers, and power users; Residents who require meter reading can also be accessed and designated according to the existing hierarchical structure of business offices, sections, and power users. |
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1、 Main station software functions 1. Remote meter reading The system can remotely read electricity data through communication methods such as GSM, CDMA, GPRS, etc. according to the meter reading plan; It is also possible to read the electricity data of each meter obtained through power line carrier communication on the concentrator or collection terminal through a handheld meter reading machine. 2. Data collection It can automatically collect operational data such as electricity meter capacity and status words. 3. School hour function The clock is the foundation of time-sharing energy metering, and this system can calibrate the electricity meter. Especially with the use of CDMA, the accuracy of time can be greatly improved. 4. Timed meter reading The system can set a freezing time and upload frozen power for line loss statistics. 5. Real time monitoring On the basis of data collection, the system can monitor the electricity meter, collection terminal, and concentrator in real time, and transmit data and alarm signals to designated devices through remote communication. 6. Fault alarm and anti-theft measures When the electricity meter, collection terminal, and concentrator fail, they can automatically upload alarms and have certain anti-theft functions. 7. Remote settings Concentrator, collection terminal, and meter parameters can be set through remote communication. 8. Remote control Can remotely issue various commands, including collection and setting commands; After being equipped with an actuator, remote control of other devices within the power grid can also be achieved. 9. Support for multiple communication methods The system supports power line carrier, infrared RS232、RS485、PSTN、GSM、CDMA、 Communication methods such as cable television networks. 10. Asset Management Our main software also provides asset management and maintenance functions for collection terminals, concentrators, and handheld meter readers, including their installation dependencies. 11. Meter reading transaction management The main station software summarizes the fixed meter reading task as a meter reading transaction, commonly known as a meter reading book. We provide flexible management tools based on meter reading transactions to assist meter readers in using this system. Our meter reading range can be implemented on a segment by unit or on a transformer by unit basis. Interface |
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| System architecture diagram: |
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| 2、 Carrier concentrator function |
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| 1. Remote or direct setting of various parameters by the backend system, including parameters such as collection terminals, electricity meters, clocks, relays, as well as a series of related parameters such as starting and stopping reading. 2. During the meter reading period, centralized reading and storage of electricity meters, status words, and other data in the storage area. 3. According to the backend settings, freeze and read the electricity meters in the substation area. 4. When the electricity meter, collection terminal, and concentrator fail, they can automatically upload alarms. 5. Timing function: The clock is the foundation of time-sharing energy metering and can be remotely or directly calibrated by the backend system for concentrators, collection terminals, and time-sharing meters. 6. Support remote real-time monitoring of the operation status of the electricity meter by the backend system, and analyze the situation of the electricity meter. 7. Equipped with high intelligence and automatic routing technology, capable of sensing the topology of the power grid. |
| 3、 Collector function |
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| 1. Collect, process, and store data such as electricity meter capacity and status words. 2. Transmit electricity quantity and meter status data to the concentrator through power lines. 3. Battery freeze function. 4. Mutual automatic relay function. |
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4、 Network communication terminal
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| 1. Intelligent network devices automatically determine the status of wireless networks, store and forward data, and improve network efficiency. 2. Wireless routing judgment and automatic selection of communication links ensure the reliability of communication and the integrity of data. 3. The supported networks include CDMA GPRS、GSM， And the 485 bus. 4. There is a backup battery that can send an alarm message in case of power failure. 5. Supports TCP/IP protocol and CDMA data encryption protocol. |
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