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IDEA: This product focus has shifted is a replicable sensory package capable of being placed into any beehive.

RESEARCH

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This is the most common beehive in Kenya, primarily found hanging from trees. This makes the design more difficult if it is to be applicable to these hives, as weight is much more difficult to measure

Possible solutions include

measuring tension
forgoing weight measurements
taking initail measurements on the ground
adding a suspension mechanism

Key research questions:

1. Core Purpose & Outcomes

What primary data should the sensory package collect (e.g., temperature, humidity, sound, weight, CO₂, vibration, volatile chemicals)
What beehive health indicators are most important to measure
Should the system provide real-time monitoring or periodic snapshots
What level of accuracy is required for each type of sensor

2. Physical Design & Integration

How universal must the design be across hive types (Langstroth, Warre, Top Bar, etc.)
What size and form factor constraints exist inside typical hives
How will the device be placed or mounted (frame-embedded, top cover, bottom board, side wall)
Is the device expected to be removable or permanently installed
What materials are safe for bees and resistant to wax, propolis, moisture, and heat?

3. Environmental Constraints

What operating temperature and humidity ranges must the device withstand
How will the device prevent buildup of propolis or wax that might block sensors
Does it need to survive contact with honey, wax, or condensation
What is the expected lifespan inside a harsh hive environment

4. Power & Energy Management

What power source will be used (battery, solar, wired)
What is the expected power consumption of each sensor
How long must the device operate between charges or battery swaps
Will low-power modes or on-device data compression be needed

5. Data Communication & Connectivity

How will data be transmitted (Bluetooth, Wi-Fi, LoRa, cellular)
What range is required between the hive and the receiver
Should the device store data locally when connectivity is unavailable
What is the acceptable data sampling rate vs. bandwidth

6. Sensor Selection & Placement

Which sensors need direct exposure
How will sensor positioning avoid interfering with bees’ movement or airflow
Do sensors need calibration, and how will beekeepers perform it
Should it detect hive weight or forager traffic (which may require external components)?

7. Durability, Maintenance & Modularity

How easy should it be for beekeepers to install and service the device
Can components be swapped or upgraded without replacing the entire system
What cleaning or maintenance routines will be required
How can the device minimize disturbance to the bees during maintenance

8. Data Processing & User Interface

Will data be processed on-device, in a gateway, or in the cloud
Should the system support anomaly detection or alerts (e.g., swarm prediction, queen loss)
What interface will the beekeeper use (mobile app, dashboard, SMS alerts)

9. Scalability & Replicability

How easy should it be for users to replicate or manufacture the device
What level of documentation or open-source support will be provided
What cost targets must be met for beekeepers with many hives
Can the design be modular so users pick sensors based on budget

11. Future-Proofing

Should the design allow adding new sensors later
Can firmware or software be updated remotely
How will the device handle emerging standards in agricultural IoT systems

Additional reaserch

Possibilities for additional sensors can be found at this site

Specs :

the below specs are designed to answer the key reaserch questions

1. VOC (Volatile Organic Compound) Measurements

Sensor Capability: Must accurately detect a wide range of VOCs associated with hive health (e.g., ethanol, aldehydes, organic acids).
Sensitivity: ppm-level sensitivity or better.
Sampling Rate: Adjustable sampling interval (default: every 5–15 minutes).
Calibration: Support for periodic baseline calibration to maintain accuracy in high-humidity environments.
Environmental Tolerance: Must operate reliably under hive conditions (40–90% humidity, 20–45°C).
Use Case: Early detection of hive stress, infection, or chemical exposure.

2. Weight Measurements (Tension & Gravity)

Measurement Methods:
- Tension measurement: Using load cell(s) mounted to hive support bars or straps.
- Gravity measurement: Using a platform-type load cell reading from bottom or legs.
Accuracy: ±50 g or better across the entire weight range.
Sampling Frequency: Configurable; typically once every 1–5 minutes.
Environmental Durability: Must withstand outdoor moisture, hive vibration, and seasonal temperature changes.

3. Weight Capacity

Maximum Load: Capable of measuring up to 70 kg total hive weight.
Overload Protection: Load cells must include mechanical or electrical overload tolerance to prevent damage during installation or shifting hives.
Resolution: Minimum resolution of 10 g across the full scale.

4. Temperature Measurement

Temperature Range: Must measure from room temperature (~15°C) up to 100°C.
- Covers hive internal temps (32–38°C) and protects against heat buildup.
Accuracy: ±0.5°C or better.
Probe Type:
- Internal probe for brood area temperature
- Optional external probe for ambient hive temperature
Heat Resistance: Sensor must remain accurate even under colony heating events or beekeeper interventions.

5. Compact Form Factor

Size Constraint: Must be small enough to fit inside a standard hive cavity without disrupting bees—target footprint approximately 30–70 mm and <150 g total mass.
Non-intrusive Design: Smooth surfaces, bee-safe materials (no sharp edges), minimal obstruction to bee movement.
Mounting: Flexible mounting options (clip-on, hanging, or embedded).

6. Compatibility with Any Hive Shape

Form Factor Adaptability: Usable in both top-bar, Langstroth, barrel (Kenyan or horizontal), and other hive types.
Mounting Solutions: Adjustable mounting brackets or adhesive pads to secure the unit regardless of hive geometry.
Cable-Free Operation: Fully enclosed system to avoid interfering with comb building or hive inspection.
Capble of: being maitined without beehive removal

7. Fully Self-Contained System

Integrated Power Source: Internal battery system with no external wires required.
Embedded Electronics: Microcontroller, sensors, storage, and communication modules all housed in one sealed enclosure.
Data Logging:
- Onboard storage for at least 1 week of data (minimum 10,000–50,000 data points).
- Optional wireless communication (Bluetooth, LoRa, Wi-Fi depending on design).

Protective Housing: Water-resistant and propolis-resistant casing (IP54+ recommended).

8. Power Autonomy (Minimum 1 Week Operation)

Battery Life:
- Must operate for 7+ days continuous recording at default sampling rates.
- Low-power microcontroller and sensor sleep modes.
Battery Type:
- Rechargeable Li-ion or Li-Po, OR
- Replaceable AA/AAA lithium batteries.
Energy Features:
- Automatic low-power mode when hive is inactive.
- Optional solar trickle-charging for extended deployments.
- Power usage must not raise hive temperature noticeably

Required parts

Boards

both the boards are capable of connecting to wifi while possessing minimal power requirements when running programs. This means I can run necessary code, connect to sensors and upload/record data all in one, replacing the need for both the Raspberry Pi and Arduino, simplifying the design and making the production process easier.

The sensors chosen are the same as the intial beehive as they are cheap to aquire and usful for early testing.

ESP32

https://store.nerokas.co.ke/SKU-3981?search=ESP32&description=true

https://store.nerokas.co.ke/SKU-3982?search=ESP32&page=2

Sensors

https://www.sparkfun.com/sparkfun-air-quality-sensor-sgp40-qwiic.html

https://www.pixelelectric.com/sensors/temp-humidity-gas-environmental/temperature-humidity/gy-sht30-3-3v-digital-temperature-humidity-sensor/

Initial sketch

Full configuration

The package will be inserted above a beehive hanging from a tree, with the probe entering the hive. The load cell is tied to the sides of the tree, where it can measure tension with the amplifier remaining in the package. This system also functions if the beehive isn't hanging from a tree, although additional configuration is needed for weight measurements. Considering the majority of Kenyan beehives in rural areas utilize a hanging log design, this is the most applicable

Sensor packadge

The initial design contains space for the needed boards and holes for the load cell wires to connect. The full package doesn't need to be attached to the beehive directly since it contains a probe where all the sensors that require proximity to the bees can be inserted. There is also availability for rechargeable batteries and expansion space for the addition of other sensors. A detachable lid is also added, and is necessary for maintenance, allowing a beeper to change batteries and modify components.

The added expansion space also enables modularity since a beekeeper can add new sensors or additional batteries.

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