Engineering Scope
The development of low-power wireless infrared detectors is oriented to the use requirement of "no wiring points need to monitor human movement events", 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
Develop passive infrared signal processing, event wake-up, threshold parameters, alarm hold and wireless notification.
Power Supply and State Scheduling
Keep the front-end detection, wake up the main controller and send notification after the event is valid, and then resume according to the retention rules.
Data and System Integration
Clear connections and data formats around passive infrared probes, analog front-ends, thresholds, and tamper inputs, and define recording, transmission, acknowledgment, and abnormal states.
Prototypes, Testing and Deliverables
Form analog circuits, event algorithms, alarm messages and interference test records, focusing on verifying the continuous power consumption of the analog front-end, environmental interference, false alarm frequency and detection response.
System Architecture and Operation
Keep the front-end detection, wake up the main controller and send notification after the event is valid, and then resume according to the retention rules.
- Interface composition: passive infrared probe, analog front end, threshold and anti-tamper input.
- 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 area, installation height and environmental changes need to be verified together.
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 | No wiring points are required to monitor personnel movement events; typical usage processes, sampling and upload times, target battery life and response requirements are provided. |
| Product interface and structure | Passive infrared probe, analog front end, threshold and tamper input; 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 | Analog circuits, event algorithms, alarm messages and interference test records; the scope of hardware, source code and third-party components is clearly stated in the statement of work. |
| Functional verification | Preserve front-end detection, wake up the main controller and send notifications after the event is valid, and then resume according to the retention rules; record the input, output and recovery results of each state. |
| Power consumption verification | Simulate front-end continuous power consumption, environmental interference, false alarm frequency and detection response. 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 EngineeringLow-Power BLE Advertising and Connection Development
BLE broadcast and connection low-power development services, configure broadcast and connection parameters according to status, manage synchronization and disconnection recovery, and deliver BLE firmware, protocol fields, parameter tables and target device 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 wireless hibernation stop human movement detection?+
The detection link and the wireless link should be designed separately, with clear circuits and wake-up paths that are retained continuously; sleep mode must verify that events can still be captured.
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 passive infrared probe, analog front end, threshold and tamper input, 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 deliverables such as analog circuits, event algorithms, alarm messages and interference test records; the prototype materials, structure, platform, external tests and new functions are listed separately, and quotations and nodes 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
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