[0021] In order to make the objectives, technical solutions, and advantages of the present invention clearer and more comprehensible, the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many details listed in the specification are only to enable the reader to have a thorough understanding of one or more aspects of the present invention, and these aspects of the present invention can be implemented even without these specific details.
[0022] Such as figure 1 As shown, according to one aspect of the present invention, a method for judging whether an elevator is to be maintained based on the elevator trajectory is provided, which includes the following steps:
[0023] Step S1: Monitor the real-time motion trajectory of the elevator car in real time and upload it to the monitoring center, call the elevator information list of the monitoring center to view the real-time motion trajectory data of the elevator car, and send the corresponding real-time motion trajectory data to Analyze and compare the cloud server and the pre-stored reference motion track data;
[0024] Step S2: When the cloud server compares the real-time motion trajectory data and the reference motion trajectory data does not correspond to the maintenance reminder message or alarm message to the elevator information list, the monitoring center forwards the maintenance reminder message or alarm signal to the elevator maintenance unit Determine whether the elevator needs maintenance, if maintenance is needed, then push maintenance information, if maintenance is not needed, continue to monitor the real-time motion trajectory of the elevator car; when the monitoring center receives maintenance reminder information or alarm information Post elevator failure alarm information to the elevator official account platform to complete viewing and alarming, and to understand the people entering and exiting the elevator by viewing the video data. The elevator can accurately know the number of floors where the elevator is currently located, ensuring that the elevator can quickly rescue when the elevator fails. Elevator safety factor
[0025] Step S3: The elevator maintenance unit pushes the maintenance task to the mobile terminal of the maintenance personnel, and the mobile terminal of the maintenance personnel scans the QR code area in the elevator to follow the elevator WeChat official account to obtain the WeChat ID number of the maintenance personnel And elevator information list; the mobile terminal is a mobile phone or a notebook or a tablet with an Android, Windows, IOS or Windows Phone smart operating system;
[0026] Step S4: The elevator WeChat official account sends the WeChat ID number and elevator information list to the cloud server through the mobile terminal for maintenance check-in registration, and the maintenance personnel upload the elevator maintenance plan and maintenance tasks to the cloud in chronological order through the elevator list information Server, the cloud server delivers real-time motion trajectory data to the elevator WeChat official account of the mobile terminal;
[0027] Step S5: According to the elevator maintenance plan and maintenance tasks, the maintenance personnel’s mobile terminal takes photos or videos of the elevator maintenance site through the elevator WeChat official account, creates maintenance records and starts to proceed according to the real-time motion trajectory of the elevator car Maintenance operations, after the maintenance is completed, upload the maintenance records to the cloud server for saving and update. After the maintenance is completed, the maintenance personnel log out and sign in, and upload the maintenance records to the cloud server to facilitate the monitoring center to retrieve and upload to the cloud The server's maintenance task is to determine whether to perform maintenance and whether the maintenance operation is performed in a safe manner. Maintenance personnel scan the QR code to obtain the project name, user unit, elevator number, landing door and corresponding related parameters, and upload the photos or videos of the scene to the cloud server. The types of pictures or videos on the scene are divided into: After uploading the machine room, host, hoistway, control cabinet, car top or bottom of the car, pit, maintenance record list and replacement parts operation, etc., the maintenance personnel can arrive at the place where the elevator needs to be maintained within the specified time to complete the After the maintenance record was checked in, the maintenance personnel began to perform daily maintenance and overhaul of the elevator according to the daily elevator maintenance plan and maintenance tasks. After the maintenance and overhaul, the maintenance record and the GPS point location of the maintenance personnel will be transmitted It is also uploaded to the cloud server to complete the exit sign; by feeding back the situation that occurs on the spot to the elevator maintenance unit; the supervisory staff of the elevator maintenance unit obtains the feedback information through the cloud server, and quickly understands the actual situation on the spot. Find a solution for maintenance and overhaul quickly, which can greatly increase the speed of maintenance and improve work efficiency.
[0028] In the present invention, such as figure 1 As shown, after the monitoring center forwards the maintenance reminder information or alarm information to the elevator maintenance unit, the maintenance unit compares and analyzes the real-time motion trajectory data with the reference motion trajectory data to reflect the wear of the elevator car , Used time and maintenance history records to determine whether the elevator is in a maintenance overdue state. If it is not overdue, determine whether the elevator needs to be replaced and maintained, and generate a maintenance plan and maintenance tasks, and push the maintenance tasks to maintenance Personnel’s mobile terminal; if it is overdue, push maintenance overdue reminder information to the maintenance personnel’s mobile terminal; the real-time motion trajectory data of the elevator car includes height displacement, acceleration change, running speed, floor stay time, Operating floor status information and elevator operating mode information; in the present invention, the elevator information list of each elevator includes use unit information, building number information, elevator number information, elevator type information, maintenance information, operation date, maintenance information, The temperature and humidity in the elevator car, the elevator operation mode, the running speed, the floor position of the elevator car, dynamic video, face recognition, automatic warning and rescue release, etc. The maintenance records are annual, half-year, quarterly The height displacement, acceleration change, and operating speed are based on the atmospheric pressure at the bottom or top of the elevator hoistway. According to the pressure sensor and acceleration sensor set at the outer bottom or top of the elevator car, real-time Monitor the atmospheric pressure at the height when the elevator car is constantly changing when the elevator car is running up and down, and calculate the difference between the real-time air pressure of the elevator car and the reference air pressure to calculate the up and down travel height displacement; The acceleration sensor detects the acceleration of the elevator car during the up and down movement, calculates the acceleration change and the time change required to record the acceleration change, and calculates the current elevator car according to the height displacement, acceleration change and time change Running speed and acceleration, and then comparing the acceleration with the standard acceleration threshold and the running speed with the standard speed threshold to determine whether the elevator car's current floor height position and current operating status are satisfied when running under the specified speed and acceleration conditions The safety parameters "GB/T24803.2-2013" for the basic safety requirements of elevators are used to determine whether it is necessary to perform maintenance in accordance with the "TSG5001-2009" elevator use management and maintenance rules, and according to the different configurations of the elevator, refer to "GB/ T1875-2002" elevator maintenance specifications and "DB32/T 3635-2014" elevator maintenance specifications to determine whether maintenance is required; the reference motion trajectory data is used to reflect the reference threshold when the elevator can continue to operate safely within the specified range Data, the reference threshold data includes height change threshold acceleration, running speed threshold, floor stay time threshold, row floor status threshold and elevator running threshold; for example, according to different configurations of elevators, the elevator speed is generally 1m during operation. /s~2.5m/s, the car goes up to the upper range of the stroke at rated speed without load In case of sudden power failure, the car should be able to stop completely (stopping distance is not greater than: when operating speed ν<1.0m/s, the stopping distance is not more than 62cm; when running speed ν<1.6m/s, the stopping distance is not more than 160cm; running speed ν<1.80m/s, stopping distance no more than 203cm), the one-way running time from the main floor to the highest floor of the building does not exceed 60s; according to the actual operating parameters of the elevator beyond the maintenance parameters, this parameter value is required Carry out adjustments and maintenance. The actual situation during the adjustment can be shortened without affecting the safety of passengers, but it should not be larger than this size, otherwise there is a risk of slides; the elevator operation status mainly includes normal operation status, fault stop status, Fault running status, running sequence and running time; fault stop status mainly includes overhaul status, maintenance status and elevator locked status, etc. Fault running status includes elevator not opening, sudden decline, overspeed operation, sudden rise, stuck in the middle of the floor (Card floor), long time shutting down people (sleeping people), rushing to the top, squatting bottom, etc.; the operation sequence includes the order of the elevator accepting appointments and the order of actions of the main control components of the elevator, and the operating time includes the operating time of each floor , The stopping time of the station floor, the opening/closing time of the car door, the elevator staying time at the leveling position cannot be greater than or less than the specified floor stay time threshold, and each elevator is determined according to the real-time motion trajectory data and reference threshold data of each elevator. Whether the elevator needs maintenance, when it is determined that any elevator needs maintenance, the cloud server generates a maintenance execution information, and sends the maintenance execution information to the elevator maintenance unit, and then the elevator maintenance unit pushes the maintenance execution information To the maintenance personnel of any elevator so that the maintenance personnel can come to the scene to maintain the elevator.
[0029] In the present invention, such as figure 1 As shown, comparing the real-time movement trajectory data of the elevator with the reference movement trajectory number in real time to determine whether the elevator needs maintenance The specific method is: calculate the current height of the elevator car based on the real-time monitoring of the real-time movement trajectory number of the elevator car Displacement, operating speed, floor stay time, operating floor status information and elevator operating mode information (random operation, odd-even floor operation, partition operation, stop operation and inspection status), and compare the calculated data with the reference threshold data Corresponding to determine whether the elevator needs maintenance; in the present invention, the maintenance record includes the maintenance start time, maintenance suspension time, maintenance end time, and maintenance items of the maintenance operation, and pass the maintenance The maintenance record is judged whether it meets the elevator maintenance behavior standard. If it does, it is determined that the elevator has been maintained, the maintenance record is obtained, and the judgment result and maintenance record are sent to the cloud server for storage and update. If not, Then it is determined that the elevator has not been maintained, and the judgment result is sent to the cloud server for storage and update. In the state of maintenance and inspection, the speed range of the elevator operation is 0.2m/s~0.5m/s. Perform maintenance according to the content and requirements of the maintenance items specified in "GB/T1875-2002"; generate corresponding maintenance start record information and midway suspension record information according to the maintenance start time, maintenance suspension time, and maintenance end time And the maintenance end record information, and the maintenance start record information, midway suspension record information, maintenance end record information and maintenance item list or content are uploaded to the cloud server as a set of maintenance information for the monitoring center to query at any time.
[0030] In the present invention, according to the real-time monitoring of the real-time motion trajectory data of the elevator car, the various control devices of the elevator involved, such as: the elevator machine room, the elevator car and the personnel entry and exit detection devices at the pit and the main control cabinet Switch control signal, car inspection switch signal, landing door switch signal of each floor and pit emergency stop switch signal. In the elevator running track, it is judged whether the elevator needs maintenance according to each switch signal. If it is necessary to perform maintenance on a certain elevator If it is in compliance with the elevator maintenance behavior standard through the maintenance record, the elevator maintenance behavior standard includes the following steps:
[0031] Step S50: Switch the elevator's inspection up switch and inspection down switch between effective closing and opening, and the elevator door lock switch is turned off, so that the elevator performs floor stop operation, when the floor stop operation is invalid , The elevator stops running and the elevator door lock switch is turned off;
[0032] Step S51: Close the door lock switch of the elevator to make the elevator perform leveling stop operation. When the leveling stop operation is invalid, the elevator stops running and the elevator door lock switch is turned off;
[0033] Step S52: The door lock switch of the elevator is closed, and the inspection up switch and inspection down switch are switched between effective closing and opening, so that the elevator is stopped at each floor and at the level. If the operation is valid, Then the elevator is running normally without maintenance, and each maintenance record running during the maintenance operation is sent to the cloud server for saving and updating. If the operation is invalid, the elevator is not running normally, then the maintenance operation is performed.
[0034] Therefore, it is only necessary to perform complete execution and judge whether the elevator needs maintenance according to the various switch signals in the elevator running track, and update the maintenance records, thereby avoiding the maintenance safety hazards of the elevator maintenance process going through the scene or improper implementation, and improving In order to improve the stability and reliability of the elevator operation, the maintenance personnel only believe that the elevator maintenance personnel have actually repaired or maintained the elevator after completing the above maintenance steps, and the relative maintenance start and end time Master, can accurately grasp whether the elevator is repaired or maintained on time and according to quality, realize whether the elevator needs to be maintained and the intelligent maintenance records, and facilitate timely maintenance and supervision.
[0035] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be made. It is regarded as the protection scope of the present invention.
