Use Separate FSR Zones When a Service Robot Must Locate Contact

Use separately identifiable FSR zones when a service robot needs to distinguish contact locations. Before interpreting a mounted test, control the provisional zone-to-terminal-to-channel map and write down which readings each contact should produce. If the observed pattern differs, check channel identity and the installed load path before changing software thresholds. Approve the final circuit and mechanical revisions only after the agreed contact map has been tested; the test itself already needs a known connection map.

The retained sample photo shows six round regions, branching printed paths, a tail, lead wires and a connector. It does not establish six independently readable channels or show the sensor installed on a robot. Use the proposed circuit and assembled sample for that evidence.

Current tactile reporting separates detection from location

In its tactile-sensing account published 2026-10-15, Pressure Profile Systems describes a platform that measures contact location, area and force alongside other signals. This is a company-owned account of its own system. The date belongs to that press page; it is not being used as a verified publication date for the external magazine article linked there.

For a service-robot buyer, the useful distinction is between detecting that something touched a surface and identifying where it touched. Those are different output requirements. Several printed circles, a changing resistance or a robot skin outline do not establish spatial information. PPS's platform description does not establish that a custom FSR layout measures slip, shear or calibrated force, and it gives no safety approval for a bumper.

The buyer risk is accepting a location-sensing layout from a reassuring response at one convenient point. A crossed channel label, a combined electrical path or load spreading through the mounted cover can each leave the observed pattern different from the required one. The review must preserve those alternatives instead of treating every unexpected response as a threshold problem.

Decide which contact information is useful

A single combined contact signal may be enough for a non-safety docking indication or an occupied pad. Separate zone outputs are useful when the controller needs to distinguish left from center contact, compare sides of a contact bar or identify a pad needing inspection. If every zone leads to the same action, segmentation can add pins, readout work and test records without helping the decision.

The earlier IFR World Robotics 2025 release, published 2025-10-07, remains historical application context. Transportation and logistics was its largest professional service-robot class, and cleaning sales increased in its 2024 supplier sample. IFR identifies 294 suppliers and says the sample is not projected to the whole industry. These figures do not establish current demand for this sensor or prove a mounted contact function.

Control the connection map before the mounted test

Give physical contact locations stable IDs, then connect each ID to the proposed sensor node, connector terminal and readout channel. Record shared returns, combined outputs or scanning arrangements explicitly. Wire colors and the number of visible pads cannot substitute for the circuit drawing. Fix the connector viewing direction and mating orientation so a drawing cannot silently become a mirrored assignment.

For the contact record, identify the provisional mechanical and electrical revisions, the readout circuit or controller settings, the contact locations, load method and timing, and the expected channel pattern. Record the actual values for all relevant channels, including those expected to remain within their agreed unloaded range. Do not invent a universal resistance limit or assume that an inactive channel must read numerical zero.

This is a controlled map for evaluation, not permission to release an untested production design. If a terminal assignment changes during diagnosis, revise the record and repeat the affected checks. A wire continuity check can support connection identity; it does not prove force response, channel separation or simultaneous-contact performance.

Compare expected and observed responses

Agree on the intended outcomes before applying the defined contacts. The table is an unfilled test-planning aid, not a report of results from the photographed sample.

A neighboring response is not automatically a defect. It may match the intended mechanical sharing or readout architecture. Compare it with the agreed output requirement and retain unresolved outcomes rather than relabeling them as a passed test.

Separate identity checks from mounted load sharing

If a named contact appears on a different channel, first have the electronics owner check the zone, node, terminal and software-channel labels against the controlled drawing and readout configuration. Do not adjust a threshold to disguise an unexplained assignment. Resolve the identity record before attributing the result to the sensor's force response.

When the mapping is consistent but the mounted response remains unexpected, examine the load path. An actuator that bridges adjacent regions, a broad compliant pad, housing distortion, mounting preload or cable strain can change which areas are loaded. Inspect one suspected variable at a time while preserving the contact method, circuit and other assembly conditions. Record the change and repeat the affected contact cases.

Interlink's FSR documentation links to its Integration Guide, EIG-10000 Rev. C. The guide discusses the influence of actuation mechanics and interface electronics. Its guidance supports using repeatable evaluation conditions. Its numerical examples and sensor specifications are not Baoshengda acceptance limits or results for this layout.

Include the housing and service route in approval

Show the outer contact surface, actuator land, unloaded clearance or planned preload, hard stop, sensor support and adhesive area in a section view. Keep the tail, strain relief and connector pocket visible in the assembly record. A narrow actuator can concentrate load; a broad soft layer can spread it into neighboring regions. Approve the intended construction in its representative housing rather than assuming a loose sensor reproduces it.

Record installed unloaded readings, repeat the required contact locations, then check release and the relevant service sequence. Opening a panel, reconnecting a cable or refitting a bumper must not be treated as equivalent to leaving the bare sample untouched. Use the specified fastening and routing conditions. Include the permitted cleaning method and relevant dust or moisture exposure without treating the FSR layer as enclosure sealing.

Actuator geometry, loading history, dwell, temperature and the readout affect interpretation. A zone map alone does not calibrate force, prove overload resistance or validate robot stopping behavior. The equipment developer owns signal processing, motion decisions and any required safety function.

Start a review with the contact question

Baoshengda's custom FSR layout and connection options can support a component discussion about sensing regions, trace routing, tail geometry, connector definition and sample checks. Confirm whether the intended circuit can provide the required outputs; the cover does not approve an independent-channel architecture.

For an initial service-robot contact-layout review, send an available photo or sketch of the contact surface, if you have one, marked with the locations you need to distinguish. Add the intended use, approximate quantity or one unexplained response. If the readout or actuator is undecided, say so; complete production drawings are not required to begin.

The sample plan can then connect the proposed circuit and terminal map with the section stack, hard stop, service route and expected-response record. Keep open assumptions visible until the responsible reviewers agree on the tested mechanical and electrical revisions.