Emanuel P Malandrakis, 3678 Phillips St APT 1, Boston, MA 02114

2021022, Jul 22, 2021

Jan 22, 2020

16/749161

- Conyers GA, US
Sajin GEORGE - Somerville MA, US
Emanuel Paul MALANDRAKIS - Boston MA, US
Sharanappa AVATI - Eindhoven, NL
Mitri J. ABOU-RIZK - Newton MA, US

H04W 24/02
G06F 8/656
G06F 8/658
H04W 4/80
H04W 88/16

A network has wireless enabled nodes of more than one hardware type. A computing device obtains a software update for one of the node types and sends an announcement of availability through the network. The announcement includes a node type identifier. A node that recognizes the identifier as matching its own hardware type collects the software update through a series of one or more requested packet transfers from the controller. Each packet carrying part of the update also includes the node type identifier. A node of a different type that has received the packets may serve as a source of missing packets to other nodes. Alternatively, nodes needing missing packets can fetch them from the computing device. When the software update is completely received by a node of the identified type, that node reboots and executes the updated software. Any node of another type discards the packets.

2020034, Oct 29, 2020

Apr 7, 2020

16/841826

- Atlanta GA, US
Kenneth Edwin Nelson - Stone Mountain GA, US
Emanuel Malandrakis - Boston MA, US

H05B 47/16
H04L 29/08

A method for testing an emergency lighting product connected to a network includes creating, at a network control device, a first test schedule for causing the emergency lighting product to perform a test, where the test is scheduled to be performed by the emergency lighting product based on a signal received from the network control device after a first time period. The method further includes creating, at the emergency lighting product, a second test schedule for causing the emergency lighting product to perform the test after a second time period, where the second time period is longer than the first time period and begins at the same time as the first time period, and determining, by the emergency lighting product after the second time period, that the signal has not been received from the network control device, and performing, by the emergency lighting product, the test.

2020032, Oct 15, 2020

Apr 12, 2019

16/382548

- Conyers GA, US
Jesse GRANT - Needham MA, US
Emanuel Paul MALANDRAKIS - Boston MA, US
Sajin GEORGE - Somerville MA, US
Mitri J. ABOU-RIZK - Newton MA, US

H04W 4/02
H04W 4/33
H04B 17/318
H04L 29/08
H05B 37/02

An example luminaire-based positioning system calculates a respective distance between an uncommissioned luminaire to each of neighboring commissioned luminaires based on a respective received signal strength indicator (RSSI) measurement. Based on the calculated respective distance to each of the neighboring commissioned luminaires and a set of commissioned location coordinates of each of the neighboring commissioned luminaires, luminaire-based positioning system estimates a set of uncommissioned location coordinates of the uncommissioned luminaire. The luminaire-based positioning system determines a best fit assignment of the set of uncommissioned location coordinates of uncommissioned luminaires in an uncommissioned luminaire list to the set of commissioned location coordinates of non-operational commissioned luminaires in a non-operational luminaire list. The luminaire-based positioning system adjusts a luminaire node map for each of the non-operational commissioned luminaires based on the determined best fit assignment.

2019029, Sep 26, 2019

May 15, 2019

16/413239

- Conyers GA, US
Kelby Edward GREEN - Mountain View CA, US
Emanuel Paul MALANDRAKIS - Boston MA, US
Sajin GEORGE - Somerville MA, US
Mitri J. ABOU-RIZK - Newton MA, US
Xiangrong LI - Brookline MA, US

G06K 7/10
G06K 19/07
H04W 52/02
H04W 84/18

A system includes a plurality of lighting devices connected in a network to communicate in a service area, and a smart tag configured to communicate with one or more of the lighting devices. Each respective lighting device is configured to transmit a radio frequency signal including a device identifier of the respective lighting device. In response to expiration of a time period or an occurrence of an event, the smart tag is configured to transition from a low power consumption sleep mode to an awake mode. During the awake mode, the smart tag is configured to provide information that enables a processor or other computing device to determine a position of the smart tag or any asset associated with the smart tag in the service area. Upon transmission of the information, the smart tag is transitioned from the awake mode back to the low power consumption sleep mode.

2019027, Sep 12, 2019

Mar 7, 2019

16/295623

- Conyers GA, US
Jesse GRANT - Needham MA, US
Sajin GEORGE - Somerville MA, US
Emanuel Paul MALANDRAKIS - Boston MA, US
Mitri J. ABOU-RIZK - Newton MA, US

G01S 5/02
G01S 13/87
H04W 64/00
H04B 17/318
H04W 88/16

Radio frequency-enabled nodes, in an example asset tracking system, receive a basic message including an asset tracking tag identifier from an asset tag. The nodes measure a signal attribute of the received message; and each receiving node transmits a node asset message including the asset tag identifier, a respective node identifier, and the measured signal attribute. Edge gateways each receive one or more node asset messages transmitted by some number of the radio frequency-enabled nodes and rank respective node identifiers based on the measured signal attribute. Each edge gateway forwards an aggregated message to a fog gateway, which parses data from the aggregated messages to form a node identifier tuple identifying at least three nodes near the asset tag. Ordered identifiers from the tuple and known locations of the identified nearby nodes can then be processed to estimate of the location of the asset tag.

2019027, Sep 12, 2019

Jan 30, 2019

16/262185

- Conyers GA, US
Jesse GRANT - Needham MA, US
Sajin GEORGE - Somerville MA, US
Emanuel Paul Malandrakis - Boston MA, US
Mitri J. ABOU-RIZK - Newton MA, US

G06K 7/00
G06K 7/10

Examples of a system and a method for asset tracking are provided. The system includes wireless communication nodes in a space that receive a basic message including an asset tracking tag identifier and a basic message sequence number transmitted by an asset tracking tag. The wireless communication nodes measure a received basic message signal attribute, and transmit a node asset message including the asset tracking tag identifier, the basic message sequence number, a node identifier, and the measured signal attribute of the received basic message to an edge gateway. The edge gateway may receive the transmitted node asset message transmitted by each of some number of the wireless communication nodes and rank respective node identifiers extracted from the received node asset messages based the measured signal attribute. The edge gateway forwards an aggregated message to a fog gateway for obtaining an estimate of the location of the asset tracking tag.

2019015, May 23, 2019

Nov 17, 2017

15/816632

- Conyers GA, US
Emanuel Paul Malandrakis - Boston MA, US
Pranav Kuber - Somerville MA, US

H04W 24/02
H04L 12/26
H04L 12/721
H04W 24/08

The disclosure provides an example of a system including a radio frequency (RF) nodal network and a gateway coupled to the RF nodal network. The gateway is configured to transmit control packets the control packets having an initial parameter setting for each node in the RF nodal network. The selected nodes among the network of nodes are configured to transmit a number of test packets for each of a plurality of tests is greater than throughput saturation of the RF nodal network. The system includes a server coupled to the gateway and is configured to perform network performance analysis based on the test packets for each of the plurality of tests received by the gateway. The server updates parameter settings to optimize performance of the nodes of the RF nodal network to attain the target network performance metric based on a result of the network performance analysis.

2018030, Oct 25, 2018

Apr 27, 2018

15/965020

- Conyers GA, US
Kelby Edward Green - Mountain View CA, US
Emanuel Paul Malandrakis - Boston MA, US
Konstantin Klitenik - Cambridge MA, US

G01S 5/16
H04B 10/114
G01C 21/20
H04W 4/40
H04W 4/30
H04B 10/116
H04W 4/02
H05B 33/08

An example of a technique for maintaining a previously calibrated mobile device positioning system to account for changes in perturbers of the Earth's magnetic field. A mobile device obtains a corrected heading estimate of the mobile device within a space based on a previously recorded heading correction value. The mobile device also calculates a device heading relative to a previously orientated map of the space. The mobile device subsequently updates the heading correction value with any deviation between the corrected heading estimate and the calculated device heading.