【 Weak current College 】 elevator remote monitoring system

Intelligent building connotation is the essence of the information technology system platform to demand, application functionality and system related elements closely together to achieve the overall objective of the intelligent and. Performance: building information parameters are observable control state; buildings can quickly respond to user needs, determine the most effective way to provide users with convenient, comfortable and creative environment, computer, communication technology, allowing information to be quickly building passing for building intelligent intelligent elevator first and intelligent buildings all automated information system, such as fire fighting and security. Building equipment control system interaction. The elevator to be safe and comfortable, high quality service tool with its serial communication wiring simple. information transmission capacity, etc. in the elevator control system is increasing, due to the removed computer interface board with a large number of input and output circuit. Reduces and road, route number in the engine room. Reliability greatly enhanced, with the building of intelligent fieldbus technology has started to lift control system and the building of the bas, fas, sas.
Running from the elevator control intelligent perspective, request a service elevator. Control program should adopt advanced scheduling rules so that the group control management has the best pie ladder mode. Now the group control algorithm is not the sole reliance on the "passenger waiting time shortest" as the goal, but rather fuzzy theory. Neural network. Genetic algorithm, expert system, the factors to be considered (i.e. expert knowledge) absorption to the group control system. These factors are affecting the psychological factors, passengers also have on is about to happen is for evaluation and decision, expert system and lift the current running together multiple target control. Elevator speech notification and the information appears to maximize the load capacity of the box. Using genetic algorithm for passenger traffic pattern and distribution of the ladder rules priority. Self-learning, but then lift schedule to accommodate the evolution of changes in the environment.
"People first" design of elevator control system that will enable power phase of service quality is getting better and better.
2, intelligent building systems and the elevator system of remote monitoring system:
General view, intelligent building mainly consists of three major components:
· Environmental energy management system: electric lighting system, sanitation and air conditioning systems, transportation systems
· Security management system: disaster prevention system, security system, data system
· Property management system: measurement system, maintenance system
Transport system including: elevator group management, escalators, parking management, automatic handling of automatic machine management, automatic measurement instrument pipe interest records compilation; measurement systems including: energy metering, rental management, operational data compilation and analysis of evaluation, system diagnosis, energy-saving diagnosis of abnormal, alarm information records compilation;
Maintenance of the system include: machine maintenance schedule management, machine diagnosis, fault predict deterioration diagnosis, data generation, automatic cleaning machine management, device update program management.
You can see from the above in intelligent transport systems is important position in the building, the elevator system is the core of building transportation system. In other words, the elevator system is composed of quality building intelligent key elements. Then the intelligent building of the elevator system should have complete equipment quality and optimization of elevator group control system parameters. An optimized elevator group control system of the main problems: the ring cycle rtt, average breaks ai, average journey time 5 minutes ap, passenger rate reached the target parameters, such as ce system engineering sense of the overall optimization. For example, for an office building: optimization of the target parameter is: ce (%) = 14-18, ai ≤ 30s for good, 30s 40s "ai ≤ is good, the bad ai ＞ 40s to 60s, ap" as well as good ap ≤ 605s, 60s "ai ≤ 75s for better, 75s" al ≤ 90s for the poor, and since most elevator amassed phenomenon, and so on.
Elevator system optimization and lift the timely adjustment of parameters is the transportation system could be the key to optimal health status and, therefore, the lift system for the remote monitoring system is essential.
3, intelligent building remote monitoring system of elevator (rms, emote monitor system) overview
Elevator remote monitoring system is now in control of areas of advanced technology, this is the elevator group control technology and a great technological progress. From the above analysis shows that: the intelligent building of vertical transport lift, obviously should be intelligent. Remote monitoring service system is on a remote monitoring system has taken one step further, this advanced system can pass through the communications line elevator operation and fault information to the remote monitoring center, data storage, online in real time, such as analysis, online in advance and monitoring, and data reports automatically generated function. Management personnel to deal with the problem. If the cabin door failure occurred due to trapped layer, remote maintenance center according to the fault condition judgment, then how can allowing remote control of the Office to open car door and gate.
In the absence of maintenance personnel to the scene of idle condition, trapped staff can leave the car, only if there is failure to repair personnel to the scene queued, or you can take the "Centre and field engineers combine" approach to dealing with emergencies. To enable the trapped people feel at ease Centre immediately to the cabin to appease voice, playing nervousness. In addition to being able to monitor health, the monitoring service center can display information to make a quick emergency stop processing in order to avoid accidents. Remote Monitoring Center is always monitoring the elevator system, ready to know lift running and failed property, maintenance personnel or field engineers to handle failures before know that maintenance items, reduced maintenance costs and time, this allows intelligent building more humane.
Elevator remote monitoring system unique to the fault information records database features enough to easily make maintenance centre established a set of elevator operation breakdown and maintenance of archives, is a failure when the elevator maintenance, when maintenance personnel to the scene, elevator and back to normal, the data is recorded in the database.The data recorded is not simply a list of data, and is a standard database files (for example, based on Microsoft access97). Maintenance center operators can open the database with the associated procedures, periodic database data sorting, statistics, report printing, etc. For example, can one elevator, elevator or a group, or a specific time period of elevator malfunction and maintenance conditions statistics. These data files (not the record list), you can clearly understand the maintenance centre for the health of the elevator and the fault condition that may be available for maintenance personnel in the elevator in place after a failure, the maintenance of scientific and effective supervision and management.
4. elevator remote monitoring system of application examples
Mitsubishi Electric develops a remote monitoring system:
The system via a leased line and p s t n line, making the system next time (down-time) greatly reduced, because the lift operating conditions can bypass the way for passengers to be revised, the system often receive data that allow problems early identification and timely memory, the system is more successful remote monitoring system. Monitoring Department
Each elevator is equipped with a remote control unit (rmu, rem0te monitor unite) and traffic controller, the controller through the pstn and leased lines and remote control center as well as equipment connected to the service terminal. Remote control unit has different detection, monitoring and diagnostics capabilities, you can replace most of the spot check the item, and the data can be internal records. This unit also control feature, you can request from the monitoring center to call the rmu. From the unit obtained data that can be used to generate optimal maintenance plan tables, as the basis for advisory services to the user. Communication controller with remote control unit, the exchange of data and remote controlled elevator cabin Monitoring Centre's internal communications, and have the modem and line control and monitoring center of communications data.
The central monitoring host is an installation in the control center of your computer, it is independent of the ownership of the console, control room is a 24 x 7 x 365 people dedicated control Hall. Terminal Services is installed on the computer, the device is used to provide to the person on duty on the master computer records of elevator operation data services. Terminal you can check the current lift running parameters and the detailed instruction data, it is more important to have the report generation feature, which lists the remote monitoring results and field engineer's instruction. Until November 1999, remote monitoring system has been combined with the almost to include original first microprocessor-based 14 kinds of elevator types, Dan has expanded to the current product, type of elevator inherent these features; early production of elevator may make improvements and/or changes in this manner.
· Rms system features
System trace boundary conditions and failure regions than online check (on-site-inspecti0n) can collect more comprehensive and exposure data. Based on our research purposes, the boundary conditions are defined as: a as in normal operating environment by retrying the operation and failure conditions. Mechanical wear and contamination can affect the accuracy of the relay contact, resulting in occasional recoverable logic errors. These symptoms of early warning, to ensure that all device features 24/7 uptime is useful. These conditions further detailed tracking provides the data for the analysis of the typical mechanical failure, fault prediction and cost efficiency of a maintenance plan. Maintenance of the rule and immediate intervention.
Specifically the following three functions:
One of them is in the elevator is executed when the delivery of the passengers and field engineers typically want to check the parameters;
The second type includes brake test, door operation, testing and other can distinguish the impending in these early stages of the complex process of treatment. The time set, and is usually less late-night commuters;
The third type is done by engineers in the process monitoring of test. These tests show a very detailed conditions on the controller and the traction motors and wells road machinery running time consumption diagnosis.
· On-time inspection and maintenance of the directory
Elevator maintenance and devices to swap plan table is based on the number of elevator operation cycle, power of standby time, at every layer machine door open number of generated. These information and mechanical wear and failure rate data, through systematic monitoring and detection, elevator service interference, daily maintenance and and the simultaneous device replacement.
· Operation Statistics Advisory
Elevator operation statistics for building owners or managers is very important because they show how the shuttle in buildings as well as how many people visit a layer, the statistical data of importance is also manifest in the fact that it shows the elevator system is to achieve the goal of the service.
· Customer report
Online monitoring system for information to monthly inspection report forms and periodic statistics forms run data is passed to the customer. Monthly inspection report is automatically generated and printed by the Terminal, it represents a range of one ordinary, boundaries and failure of idle condition. Remote monitoring functions in improved system availability while reducing maintenance costs. Otis also introduced similar monitoring system.
5.rms system in practice problems
Remote monitoring and control system elevator is elevator group control areas of technology application, but is not very widespread use in each group control system, such as data show: Hong Kong about 99 per cent of the elevators equipped according to the traditional manual correction report mode (manual mode of fault reperting), the following two reasons: first, the majority have developed remote monitoring system is based on a microprocessor as the core of a new elevator installations, if you use it for existing to have old elevators need to do a lot of technical processing can be "new technology" for the old elevator; Secondly, remote monitoring and control systems are often expensive, Elevator owners not idle in the existing elevator system with such a high buildingPrice of the device.
6. closing remarks
With the development of the lift technology, high efficiency, high speed, intelligent control of the lift will provide quality good service; practice shows: elevator remote monitoring system as an elevator enterprises for technology services and an important means of competition in the market, from behind the scenes to the foreground. Therefore research both technically advanced and inexpensive remote elevator control system is necessary, this is the remote monitoring technology is the elevator group control technology in the next few years the main research direction.