# US 12,000,736 B2 · Maintenance system and method for maintaining a gate device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,000,736 B2 - Document ID: US12000736B2 - Status: Granted - Kind: B2 - Application number: 17/258,448 - Filed: 2018-07-10 - Published: 2021-09-23 - Granted: 2024-06-04 - Earliest claimed: 2018-07-10 - Assignees: Fraba B.V. - Applicants: Fraba B.V. - Inventors: Christian Leeser; Martin Forthaus; Konrad Machill - Web page: https://patentgrep.com/patent/US12000736B2 ## CPC - G01K 13/08: in rotary movement - E05F 15/603: using rotary electromotors - G01K 1/022: for recording - G01K 1/026: {arrangements for monitoring a plurality of temperatures, e.g. by multiplexing} - E05Y 2201/434: Electromotors; Details thereof - E05Y 2400/306: Temperature control - E05Y 2400/458: for generating service signals - E05Y 2400/502: of components - E05Y 2900/40: for gates - G01K: MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR (radiation pyrometry G01J5/00) - E05F: DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING - E05Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF ## Abstract A maintenance system for a gate device includes a controller, at least one temperature sensor, and an evaluation unit. The controller has a motor control unit which actuates a drive apparatus for driving a gate member, and a non-volatile memory which stores gate data. The gate data is retrievable from the non-volatile memory. The at least one temperature sensor is arranged in a region of the drive apparatus. The at least one temperature sensor continuously transmits a detected temperature as further gate data to the non-volatile memory of the controller. The evaluation unit creates a temperature curve for each of the at least one temperature sensor over a preset operating cycle. A comparison of more than one temperature curve allows a conclusion to be drawn of a need for maintenance of the gate device. ## Claims ### Claim 1 A maintenance system for a gate device, the maintenance system comprising: a controller which comprises, a motor control unit which is configured to actuate a drive apparatus for driving a gate member, and a non-volatile memory which is configured to store gate data, the gate data being retrievable from the non-volatile memory; an ambient temperature sensor which is arranged in a region of the drive apparatus, the ambient temperature sensor being configured to detect an ambient temperature and to continuously transmit the detected ambient temperature to the non-volatile memory of the controller; at least one temperature sensor which is arranged in a region of the drive apparatus, the at least one temperature sensor being configured to continuously transmit a detected temperature as further gate data to the non-volatile memory of the controller; and an evaluation unit which is configured to create a temperature curve for the ambient temperature sensor and for each of the at least one temperature sensor over a preset operating cycle, wherein, a comparison of the temperature curves allows a conclusion to be drawn of a need for maintenance of the gate device, and a steadily rising temperature curve of the at least one temperature sensor over several consecutive operating cycles of the gate device, which steadily rising temperature curve excludes a seasonal influence via the ambient temperature sensor, indicates a possible defect in the gate device which is proactively fixable prior to a spontaneous functional failure of the gate device. ### Claim 2 (depends on 1) The maintenance system as recited in claim 1, wherein the evaluation unit is arranged in the controller. ### Claim 3 (depends on 2) The maintenance system as recited in claim 2, wherein the at least one temperature sensor is arranged on a thermally conductive housing part of a housing of the drive apparatus. ### Claim 4 (depends on 3) The maintenance system as recited in claim 3, wherein the at least one temperature sensor is arranged on the thermally conductive housing part of the housing of the drive apparatus via a thermally conductive adhesive. ### Claim 5 (depends on 3) The maintenance system as recited in claim 3, wherein a plurality of the at least one temperature sensor is provided. ### Claim 6 (depends on 5) The maintenance system as recited in claim 5, wherein at least one of a motor housing part, a bearing housing part and a transmission housing part are provided as the thermally conductive housing part on which the plurality of the at least one temperature sensor is arranged. ### Claim 7 (depends on 1) The maintenance system as recited in claim 1, further comprising: at least one additional sensor selected from at least one of, at least one vibration sensor, at least one microphone, and at least one electronic nose, the at least one additional sensor being arranged in a region of the drive apparatus. ### Claim 8 (depends on 1) The maintenance system as recited in claim 1, wherein the at least one temperature sensor is mounted to a housing of the drive apparatus via a mechanical bracket. ### Claim 9 (depends on 1) The maintenance system as recited in claim 1, further comprising: a central maintenance data memory which comprises maintenance data for at least one of configuring, monitoring and modifying the controller. ### Claim 10 (depends on 9) The maintenance system as recited in claim 9, further comprising: a mobile maintenance device which is configured, to be coupled with the non-volatile memory of the controller via a bidirectional first data connection so as to maintain the gate device, and to be coupled directly or indirectly with the central maintenance data memory via a bidirectional second data connection. ### Claim 11 (depends on 1) The maintenance system as recited in claim 1, wherein the gate data includes at least one of, a serial number, a gate position, a gate type, a number of closing cycles, hardware information, a fault message, and an operating state, of the gate device, respectively. ### Claim 12 (depends on 1) The maintenance system as recited in claim 1, wherein the motor control unit and the non-volatile memory are provided separately.