With the widespread coverage and use of electricity information collection systems, a large number of different phenomena and faults need to be solved in construction and operation maintenance. At present, the operation and maintenance work to solve on-site faults mainly relies on the specific analysis and solution of operation and maintenance personnel on site, which depends on their personal business level, resulting in a large workload, high difficulty, and easy errors.
In response to this situation, based on the Q/GDW374.2-2009 "Technical Specification for Centralized Meter Reading Terminals" standard of State Grid Corporation of China, an "Intelligent Testing Tool for Electricity Information Collection System" has been designed to enable power supply company operation and maintenance personnel to automatically analyze and quickly locate on-site problems, propose solutions, reduce dependence on the personal business level of operation and maintenance personnel, reduce workload, lower maintenance difficulty, and improve work efficiency.
When dealing with on-site troubleshooting, the testing tool will automatically provide corresponding detection operation methods and solutions based on the specific meter terminal information in the installed task work order file, and ultimately verify whether the fault has been resolved. The specific analysis and processing process will be automatically recorded and can be installed in the electricity information collection system. Based on the fault information table generated by the main station of the electrical information collection system, a task work order can be formed and downloaded to the testing tool.
The testing tool has the characteristics of being portable, easy to carry, and easy to operate, making it a good helper for on-site operation and maintenance personnel.
The testing tool is compatible with the terminal operation and maintenance manual reading machine function, which can read and maintain terminals and electricity meters, and solve on-site terminal faults.
·Terminal installation and debugging
Set terminal communication/operation/meter reading parameters during terminal installation, rotation, and fault replacement, and complete on-site terminal debugging work.
·Terminal fault detection
Can analyze and detect the working status, operating parameters, and online status of faulty terminals during the new installation and debugging process or operation, and eliminate terminal operation faults.
·Terminal meter reading fault detection
Can analyze and detect meter reading parameters during the installation and debugging process or during operation, and troubleshoot communication faults in local channels, collectors, and energy meters.
·Information exchange function with the backend
Receive work orders issued by the backend main station, install the fault handling status and results. Retrieve frozen data from concentrators and energy meters, and supplement the backend master station.
Toolbox section |
size |
450 × 350 × 100 (unit: mm) |
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weight |
Sorting weight not exceeding 2KG |
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Test host part |
External dimensions |
230 × 55 × 35 (unit: mm) |
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weight |
Weight not exceeding 350g |
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Hardware parameters |
microprocessor |
32-bit ARM Cortex M3 processor |
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System frequency |
Maximum frequency 144MHz |
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physical interface |
RS232 interface: communication with the maintenance port of the concentrator |
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RS485 interface: communicates with the maintenance port, energy meter, and collector of the concentrator, and has port driving capability and line impedance testing function |
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Far infrared communication interface: communicates with the maintenance port, energy meter, and collector of the concentrator |
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USB interface: charging interface |
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One dimensional barcode scanning, reading asset barcode information of concentrators, collectors, and energy meters |
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SIM card interface: testing SIM card |
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SMA antenna interface: antenna testing for wireless public networks |
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Wireless public network communication interface: remote communication with the backend system |
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Power line carrier communication interface: testing carrier module, carrier network |
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Battery System |
The battery is a lithium polymer battery with a capacity of not less than 2400mAh, low system power consumption, and a continuous standby time of not less than 10 hours |
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Charging voltage: USB5V |
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Charging time: ≤ 8h |
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Carrier detection module |
size |
(Length x Width x Thickness, in millimeters) 200 x 220 x 80 |
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weight |
600g (excluding modules) |
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working voltage |
AC220V, Allowable deviation ± 20% |
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Operating Frequency |
50Hz, allowable deviation ± 5% |
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Operating power consumption |
Standby ≤ 5VA, Running ≤ 10VA |
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communication interface |
The module is equipped with a standard T-type interface (RS485) and is connected to the testing host through a testing cable |
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interface protocol |
RS485 communication protocol |
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Power Line Carrier Meter Reading Protocol |
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Power supply method |
The system is equipped with a power on switch and a 2-meter power line with insulated clips, which can be powered at the terminal of the terminal meter |
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Ambient Temperature |
-15℃-55℃ |
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Storage environment temperature |
-25℃-65℃ |
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relative humidity |
25% RH-90% RH (no condensation) |
The intelligent testing tool for electricity information collection is used for on-site installation and debugging of electricity information collection terminals, terminal fault location, meter reading fault location, and communication environment testing. It can receive maintenance work orders issued by the electricity information collection system backend, interact with the main station to complete remote debugging, and install fault records.