Engineering Scope
The development of the low-power heat meter acquisition main board is oriented to the usage requirement of "the heat meter needs to complete measurement and periodic data transmission", and the collection, processing, communication and power supply are designed as one set of products. The project can start from new main board development, existing firmware modification or designated module integration. The development scope is confirmed based on the target function, existing foundation and delivery requirements.
Interfaces and Product Integration
Access temperature and flow measurement components to develop synchronous collection, measurement algorithm interface, display, storage and wireless reading.
Power Supply and State Scheduling
Collect and accumulate data synchronously according to measurement requirements, save data in batches, and communicate in the reading window.
Data and System Integration
Clarify the connection and data format around temperature measurement, flow measurement components, display and wireless interfaces, and define recording, transmission, confirmation and abnormal status.
Prototypes, Testing and Deliverables
The acquisition main board, algorithm interface, display driver and time synchronization record are formed, focusing on verifying the measurement cycle and energy consumption distribution, sensor excitation, display and communication duty cycle.
System Architecture and Operation
Collect and accumulate data synchronously according to measurement requirements, save data in batches, and communicate in the reading window.
- Interface composition: temperature measurement, flow measurement components, display and wireless interface.
- Work scheduling: Determine each status based on sampling, interaction and reception requirements, indicating which circuits continue to run.
- Exception handling: Define deadlines, bounded retries, and recovery behaviors for applicable communication, sensing, or execution tasks.
Design Conditions and Functional Limits
There needs to be a clear division of labor for measurement algorithm authorization, overall meter error and applicable certification.
Define power targets together with functional requirements. Battery-life estimates must specify the battery, temperature, operating cycle, event frequency and network conditions. Keep estimates separate from continuous-operation test results.
Project Inputs
| Data category | Startup data |
|---|---|
| business work cycle | The heat meter needs to complete measurement and periodic data transmission; provide typical usage procedures, sampling and upload times, target battery life and response requirements. |
| Product interface and structure | Temperature measurement, flow measurement components, display and wireless interface; for existing products, provide schematics, a bill of materials (BOM), firmware and prototypes. |
| Batteries and site conditions | Provide battery model, power supply range, cut-off voltage, temperature, installation method and communication conditions. |
| Delivery and Responsibility | Clarify the scope of source code and design files, platform docking, number of prototypes, test conditions and third-party work. |
Delivery and Acceptance
| Delivery project | Verification method |
|---|---|
| Design and implementation | Collect main board, algorithm interface, display driver and time synchronization records; the scope of hardware, source code and third-party components is clearly stated in the statement of work. |
| Functional verification | Collect and accumulate data synchronously according to measurement requirements, save data in batches, and communicate in the reading window; record the input, output and recovery results of each state. |
| Power consumption verification | Measurement period and energy consumption distribution, sensor excitation, display and communication duty cycle. Fix the battery side measurement point to record the energy from the full task cycle until the device returns to sleep. |
| Exceptions and retesting | Covers applicable situations such as low battery, continuous triggering, loss of connection or restart, and retains original logs, waveforms and versions. |
Specialist Engineering Services
Select the required modules based on the existing product. Interfaces and responsibilities are defined in the project scope.
Low-Leakage Hardware and PCB Development
Low-leakage hardware and PCB development services, checking static paths, protection devices, level translation and device quiescent current, delivering schematics, PCB source files, BOM, manufacturing files and node current records. The scope of the project is determined based on the target equipment, existing data and acceptance conditions.
Explore the ScopeSpecialist EngineeringLow-Power Sensor Acquisition Driver Development
Sensor low-power acquisition driver development service, develop single measurement, FIFO, interrupt and power supply control, retain the necessary stabilization time, and deliver driver source code, parameter description, sampling record and exception handling. The scope of the project is determined based on the target equipment, existing data and acceptance conditions.
Explore the ScopeSpecialist EngineeringLow-Power State Machine and Fault Recovery Development
Low-power state machine and exception recovery development services, design failure exit, bounded retry, persistence and restart recovery, delivery of state diagrams, code, configuration and fault injection records. The scope of the project is determined based on the target equipment, existing data and acceptance conditions.
Explore the ScopeSpecialist EngineeringNB-IoT/LTE-M Power Saving Mode Integration
NB-IoT/LTE-M power saving mode adaptation service, requesting and checking power saving parameters, linking sampling reporting and downlink windows, processing mode is unavailable, delivering module configuration, state machine, network log and corresponding current waveform. The scope of the project is determined based on the target equipment, existing data and acceptance conditions.
Explore the ScopeSpecialist EngineeringSystem Power, Battery Life and Environmental Validation
Complete machine power consumption, battery life and environmental verification services, measuring state current, event energy, peak voltage drop and long-term business operation, delivering original waveforms, logs, calculation sheets, test reports and coverage. The scope of the project is determined based on the target equipment, existing data and acceptance conditions.
Explore the ScopeFrequently Asked Questions
Can power consumption be reduced by extending the measurement cycle?+
The impact of temperature and flow changes on the measurement results must be judged first and verified according to the requirements of the entire meter; the measurement link and the reading link can be optimized separately.
Is it possible to develop only part of an existing product?+
Module development or power consumption optimization can be carried out according to the existing interface and modifiable range. For this product, you first need to check the temperature measurement, flow measurement components, display and wireless interface, and then determine the scope of changes and regression.
How to determine the cost and period of this project?+
The evaluation is split based on the delivery items such as acquisition main board, algorithm interface, display driver and time synchronization record; the prototype material, structure, platform, external testing and new functions are listed separately, and the quotation and milestones are formed after the requirements and interfaces are confirmed.
Engineering References
The configuration of GPIO should be checked together with the external circuit, sleep mode and wake-up status; the actual parameters are subject to the target chip data and the whole board test. GPIO and power state design reference
Online
Phone
WeChat
Top