Engineering Scope
The development of low-power wireless water leakage sensors is oriented to the use demand of "kitchens and computer rooms that need to monitor ground water accumulation". 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
Develop water detection circuits, intermittent excitation, corrosion control, event confirmation, local prompts and remote notification interfaces.
Power Supply and State Scheduling
Intermittently excite the probe and alarm after confirming the wet state. Continue detection according to the rules and feedback the recovery status.
Data and System Integration
Clear connections and data formats around point or line water detection electrodes, excitation and detection front-ends, and define recording, transmission, confirmation and abnormal status.
Prototypes, Testing and Deliverables
Establish detection circuit, dry and wet judgment, notification interface and pollution condition test, focusing on verifying dry and wet conversion, probe pollution, detection cycle, and long-term alarm power consumption.
System Architecture and Operation
Intermittently excite the probe and alarm after confirming the wet state. Continue detection according to the rules and feedback the recovery status.
- Interface composition: point or line water detection electrode, excitation and detection front end.
- 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
The detection interval should match the allowable alarm delay, and the probe life should be verified separately.
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 | Kitchens and computer rooms need to monitor ground water; provide typical usage procedures, sampling and upload times, target battery life and response requirements. |
| Product interface and structure | Point-type or line-type water detection electrodes, excitation and detection front-ends; 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 | Detection circuit, wet and dry judgment, notification interface and pollution condition testing; the scope of hardware, source code and third-party components is clearly stated in the statement of work. |
| Functional verification | Intermittently excite the probe and alarm after confirming the wet state. Continue to detect and feedback the recovery state according to the rules; record the input, output and recovery results of each state. |
| Power consumption verification | Wet and dry conversion, probe pollution, detection cycle, long-term alarm power consumption. 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 EngineeringMCU Sleep and Wake-Up Firmware Development
MCU Sleep wake-up firmware development service, develops sleep entry conditions, wake-up determination, clock recovery and driver reconstruction, and delivers state machine, firmware, wake-up timing and function regression 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 EngineeringThread/Zigbee Sleepy End Device Development
Thread/Zigbee dormant terminal development service, develops dormant terminal polling, message reception, network drop detection and rejoining, and delivers node firmware, network configuration, gateway dependency and timing records. 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
Will continuous water exploration affect the electrode?+
Corrosion and polarization should be evaluated based on the probe material and medium, the appropriate excitation method and duty cycle should be designed, and verified under representative pollution conditions.
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 point or line water detection electrode, excitation and detection front-end, and then determine the modification and regression testing scope.
How to determine the cost and period of this project?+
The evaluation is split based on the delivery items such as detection circuit, dry and wet judgment, notification interface and pollution condition test; the prototype material, structure, platform, external testing and new functions are listed separately. After the requirements and interfaces are confirmed, a quotation and milestones are formed.
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
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