Can smart meters for apartment renovation achieve remote tripping and closing?

If the smart meter for apartment renovation has remote control function, it can usually achieve remote tripping and closing. This function is achieved through the integration of communication modules, control units, and security protection mechanisms, and is one of the core application scenarios of smart meters. The specific technical implementation and value are as follows:

1、 Principle of Technical Implementation

Hardware support: Smart meters require built-in micro relays as control modules to physically disconnect or connect circuits by receiving instructions. At the same time, communication modules (such as 4G, NBIoT, LoRa, etc.) need to be equipped to support real-time data exchange with cloud management platforms.

Communication protocol: Standardized protocols (such as Modbus, DL/T 645, etc.) are used to ensure the accuracy and security of instruction transmission. Some meters also support AES128 encryption technology to prevent hacker attacks or malicious tampering.

Trigger conditions: The system can preset multiple tripping scenarios, such as overdue fees, overloaded electricity, fire alarms, etc; After payment or risk relief, it will automatically close and restore power supply. For example, after the deployment of a long-term rental apartment, the electricity collection cycle was shortened from 30 days to 7 days.

2、 Core functions and application value

Automatic power-off and quick recovery of payment for overdue fees: When tenants owe fees, the system automatically shuts down and pushes payment reminders; Restore power supply within 3 seconds after payment is received, reducing manual collection costs.

Security protection upgrade: When detecting leakage, short circuit or abnormal power in the circuit, actively cut off the power and push an alarm to reduce the risk of fire. Cooperate with smoke/temperature sensing devices to achieve multi-dimensional security protection.

Refined energy consumption management: In the context of time of use electricity pricing, remotely limit the use of high-power appliances (such as air conditioning and water heaters) during peak hours to reduce the overall energy consumption of the apartment. A certain factory saves 18% of annual electricity bills through this feature.

Remote operation convenience: Administrators can manually send instructions through mobile apps or PC terminals without on-site operation. For example, remote power outage before maintenance, and one click restoration of power supply after maintenance is completed.

3、 Deployment conditions and precautions

Network stability: Prioritize the 4G Cat.1 solution to ensure that weak signal areas such as underground garages can still be remotely controlled, with an average response delay of less than 5 seconds.

Permission level management: Administrators send instructions through dual authentication (such as password+dynamic verification code), and tenants do not have operational permissions to avoid misoperation or malicious attacks.

Compliance and User Experience: Prior to tripping, at least 3 reminders must be sent via SMS/App, in compliance with the requirements of the Electricity Law on users' right to know; Keep the manual emergency switch to prevent basic power consumption from being affected in case of system failure.

Cost considerations: The hardware cost for a single meter is approximately 200-400 yuan. When deploying, it is necessary to comprehensively consider communication fees (20-50 yuan per meter per year) and manual operation and maintenance costs.