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IQ-group Design Challenge

The market expectations of product quality and reliability in the category of motion/presence/acoustic sensing are ever increasing, particularly now that the intended application, being the comfort, security and convenience of the end user, is rapidly expanding to both the workplace and to indoor environs.

Currently, in-development or post-manufacture motion/presence/acoustic sensor performance testing uses human subjects as the trigger stimulus, making it difficult to ensure consistency and repeatability of the tests due to ensuing ‘human’ variables - body heat consistency, body heat distribution, speed of movement, height and mass of the individuals, clothing worn, etc. This inevitably leads to inconsistent results and compromised conclusions. Additionally, such a testing process yields low efficiency for the manual walk testing, recording, data analysis, and report generation.

Can we design and control an automated test subject that can accurately simulate a moving human body or the presence of human in order to provide consistent test conditions, thereby ensuring reliable test results, as well as automatic data analysis and report generation?

Motion Detection
  1. Create a heater which simulates the temperature distribution of a human body (Figure 1). The structure must be capable of independent movement in accordance with a programmed path, at a controllable speed and at pre-defined intervals.

    Figure 1: Replacing human body with simulated heater

  2. The sensor to be tested will be set up together with the heater (Figure 2). The movement of the structure and readings of sensor will be recorded for characterization.

    Figure 2: Heater and PIR sensor setup

  3. The ambient temperature and humidity should also be continuously recorded as part of the test data.
  4. The test results are to be logged in a database for analysis and product performance evaluations. Sample movement pattern and test results are shown in Figure 3.

    Figure 3a: Sample test patterns and results

    Figure 3b: Sample sensor performance chart
Presence Detection
  1. Similar to the above setup, create a heater which simulates the temperature distribution of a human hand (Figure 4). The structure simulates hand movement.

    Figure 4: Replacing human hand with heating structure

  2. The heater will be setup on top of a robotic base, while the sensor will be set up either on the wall or ceiling (Figure 5) depending on the type of test or PIR sensor to be tested. The robotic base will move from one point to another according to programmed points, then the heater hand will wave for PIR sensor detection.
  3. The test results are to be logged in a database for analysis and product performance evaluations.

    Figure 5: Heater and sensor setup for hand movement detection

IQ-group is an established global leader in the design & manufacture of LED lighting, security and convenience products, working with some of the world’s major retail and professional brands. Over our 25+ year history we have built up an enviable reputation for design, innovation, quality and value within our core technologies, encompassing motion sensors, LED lighting and wirefree door entry products. Employing approximately 1300 people globally, we boast manufacturing operations in Malaysia and China, plus offices in Taiwan, Japan and the United Kingdom.

Our strategy is simple – to provide our customers with innovative products that offer outstanding features, fantastic quality and excellent value, all backed up by exemplary service and support.

Our vision - to achieve global market disruption as we detect, illuminate and announce your arrival via shockingly exciting solutions.

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