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Smart meter PCBA processing
What is a smart meter?
The smart meter is an optimized design module based on broadband power line carrier core cards, which is fully adapted to the environment of China's power grid. It adopts modulation technology to achieve high-speed, two-way and stable data transmission on power lines, and solves the key technical problems of low-voltage power line communication. .
Main parameters of smart meter PCBA
1. Carrier operating frequency: 2-30MHz;
2. Carrier data rate: the larger rate of the physical layer is 10Mbps;
3. Carrier modulation mode: OFDM;
4. Sub-carrier modulation method: QFSK;
5. Number of sub-carriers: 1155;
6. Relay depth: 16 levels.
Smart meter PCBA implementation standards:
Comply with the relevant technical standards of the power grid and China Southern Power Grid.
Smart meter PCBA is mainly suitable for:
Industrial control, three-phase/single-phase carrier electric energy meter, carrier wave meter reading concentrator, security monitoring, broadband network, etc.
Smart meter PCBA processing manufacturer
Information required for PCBA processing of smart meters
1. Complete PCB board-making documents (Gerber files, placement diagrams, steel mesh files) and board-making requirements;
2. Complete BOM (including model, brand, package, description, etc.);
3. PCBA assembly drawing.
PS: To report the PCBA function test fee, the PCBA function test method shall be provided.
Smart meter PCBA processing flow
1. Customer orders
Customers place orders according to their actual needs, PCBA processing plants, and put forward specific requirements. The processing plant will evaluate its own capabilities to see if it can complete the order. If the manufacturer determines that it can complete the order within the expected time, then the two parties will negotiate to determine the production details.
2. Customers provide production materials
After the customer decides to place the order, he provides a series of documents and lists to the PCBA processing factory, such as the PCB electronic files, coordinate files, and BOM lists required for production, which must be provided.
3. Procurement of raw materials
PCBA processing plants purchase relevant raw materials from designated suppliers according to the documents provided by customers.
4. Incoming Material Inspection
Before PCBA processing, all raw materials to be used are subjected to strict quality inspection to ensure that they are qualified and put into production.
5. PCBA production
During PCBA processing, in order to ensure the quality of production, whether it is patch or solder production, manufacturers need to strictly control the furnace temperature.
6. PCBA test
The PCBA processing plant conducts strict product testing, and the PCB boards that pass the test are delivered to the customer.
7. Packaging after sale
After the PCBA processing is completed, the product is packaged and then delivered to the customer to complete the entire PCBA processing work.
Smart meter PCBA processing manufacturer
How much does the PCBA processing price of smart meters cost?
Smart meter PCBA processing cost = PCB board cost + PCB testing fee + PCB engineering fee (for small batches) + component purchase cost (partially up by 5%) + SMT/DIP welding fee + PCBA testing fee + assembly engineering fee (small batch Applicable) + special packaging and logistics costs (if customer needs).
How long does the PCBA processing time of the smart meter take?
The time composition of PCBA processing for smart meters: component procurement and PCB production + SMT chip processing + DIP plug-in processing + PCBA testing + finished product assembly.
Smart meter PCBA processing time details: components and PCB procurement are generally placed at the same time, PCB production requires 3-10 days, component procurement 2-15, the arrival time of components is relatively uncertain, SMT and DIP together It takes 3-5 days, PCBA test generally takes 1-3 days, and finished product assembly 2-5 days.
