Assisting execution of manual protocols at production equipment

A method for assisting execution of manual protocols at production equipment includes:

• at a mobile device at a first time:
• accessing a geospatial location of the mobile device;
• identifying a particular site occupied by the mobile device based on the geospatial location;
• accessing identifiers of a first set of wireless access points wirelessly accessible to the mobile device;
• based on identifiers of the set of wireless access points and known locations of wireless access points within the particular building, identifying a particular space within the particular building within the particular site occupied by the mobile device;
• loading a first protocol associated with a first equipment unit in the particular space isolated and disconnected from local computer networks, the first protocol defining a sequence of steps for operation of the first equipment unit by a user;
• detecting a first set of optical features in a field of view of an optical sensor integrated into the mobile device;
• calculating a first position of the mobile device within the particular space at a first resolution in response to proximity of the mobile device to a low-risk zone defined in a first space model of the particular space and associated with a first step in the first protocol, and based on positions of the first set of optical features relative to a constellation of reference features represented in the first space model of the particular space;
• in response to the first position of the mobile device falling within a first threshold distance of a first reference location proximal the first equipment unit associated with the first step of the first protocol, serving a first guidance for the first step to the user, the first guidance comprising a prompt to capture data at a second reference location proximal the first equipment unit following execution of a preceding control action at the first reference location proximal the first equipment unit;
• and
• at the mobile device at a second time following the first time:
• serving a prompt to cease motion for a period of time in response to proximity of the mobile device to a high-risk zone defined in the first space model and associated with a second step in the first protocol;
• detecting a second set of optical features in a second image captured by the optical sensor and depicting a field of view of the optical sensor during the period of time;
• calculating a second position of the mobile device in proximity to the high-risk zone within the particular space at a second resolution greater than the first resolution based on positions of the second set of optical features relative to the constellation of reference features represented in the first space model of the particular space;
• and
• in response to the second position of the mobile device falling within a second threshold distance of the second reference location proximal the first equipment unit associated with the second step of the first protocol:
• isolating a region in the second image corresponding to a particular display of the first equipment unit;
• tracking a position of the mobile device relative the particular display of the first equipment unit;
• rendering a second guidance for a second step in the first protocol, visually aligned with the particular display on the first equipment unit, on a display coupled to the mobile device;
• extracting a first value from the region in the second image corresponding to a particular value presented on the particular display;
• and
• storing the first value in a current protocol record containing a set of values captured during a current instance of the protocol.

A method for assisting execution of manual protocols at production equipment comprising:

• at a mobile device during a first time period:
• accessing a geospatial location of the mobile device;
• identifying a particular site occupied by the mobile device based on the geospatial location;
• accessing identifiers of a first set of wireless access points wirelessly accessible to the mobile device;
• based on identifiers of the set of wireless access points and known locations of wireless access points within the particular building, identifying a particular space within the particular building within the particular site occupied by the mobile device;
• loading a protocol associated with an equipment unit in the particular space disconnected from local area networks and local wireless networks, the protocol defining a sequence of steps for operation of the equipment unit by a user;
• detecting a second set of wireless signals at the mobile device;
• and
• calculating a first position of the mobile device at a first resolution in response to proximity of the mobile device to a low-risk zone defined in a space model of the particular space relative to the equipment unit based on positions of the second set of wireless signals and the constellation of wireless features represented in the space model;
• at the mobile device during a second time following the first time:
• serving a prompt to cease motion for a period of time in response to proximity of the mobile device to a high-risk zone defined in the space model and associated with a step in the protocol;
• detecting a set of optical features in a first image captured by the optical sensor and depicting a field of view of the optical sensor during the period of time;
• calculating a second position of the mobile device in proximity to the high-risk zone within the particular space at a second resolution greater than the first resolution based on positions of the set of optical features relative to the constellation of reference features represented in the space model of the particular space;
• and
• in response to the second position of the mobile device falling within a second threshold distance of a second reference location proximal a particular display of the equipment unit associated with the step of the protocol:
• isolating a region in the first image corresponding to the particular display of the equipment unit;
• extracting a first value from the region in the second image corresponding to a particular value presented on the particular display;
• and
• storing the first value in a current protocol record containing a set of values captured during a current instance of the protocol;
• and
• at a remote computer system:
• accessing a reference protocol record for the protocol;
• detecting a deviation between the set of values in the current protocol record and a reference set of values in the reference protocol record;
• in response to the deviation exceeding a deviation threshold, queuing a segment of the protocol record containing the deviation for remote verification;
• and
• replaying the segment of the current protocol record that spans the step containing the first deviation.