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Dołączył: 29 Paź 2010
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 Wysłany: Wto 22:12, 07 Gru 2010 Temat postu: uggs Wireless data transmission technology based o |
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Wireless data transmission technology based on gas intelligent management system
Alarm levels can be real-time monitoring of combustible gas concentrations in the cabinets, if the concentration limit is reached, the alarm signal. In addition, we installed the switch gate signal alarm, either normal or non-normal inspection switch door switch door, control room will get the signal within a few seconds, and then to confirm whether the alarm signal. 3.1.3 Wellhead parametric measurement unit and we also installed a wellhead pressure transmitter 2, the scene of the oil pressure, casing pressure parameters of precision by the transmitter is converted to meet the required standard 4-20mA current signal, after CPU-range conversion operation, the unit through the data upload to the control room every 2 hours time, the formation of gas in the control room of the production report, to facilitate entry of the workers, reducing the labor intensity of workers, but also increased the level of gas management . 3.1.4 Data and information on wireless remote alarm unit which is the core of whole cell gas management system, which is based on a POWERPC the CPU, coupled with storage unit and GPRS data upload unit. CPU to run the program can be taken to a variety of on-site data processing, such as analog scale conversion,[link widoczny dla zalogowanych], the value of the false alarm filtering, and then through the GPRS network and the control room to connect the server to complete the interaction data to achieve all kinds of alarm and data reports. CPU cycle where the watchdog program can detect the connectivity of GPRS network, in the event of dropped calls, you can reconnect within a few seconds to keep the network open. 3.1.5 Power as part of the gas, unlike oil wells must have power to maintain the work force, which itself is without power facilities, which must require the system to provide a safe, reliable,[link widoczny dla zalogowanych], adequate power supply system. To this end, we have the whole system to improve a variety of low-power, continuous power supply into the system delay cycle power supply, power supply every 5 minutes to 2 hours, the system usually only core CPU and key components have electricity, if alarm, only to the relevant circuit power supply; as oil pressure and casing pressure of the pressure transmitter, the whole point of supply to them, only to have the power to do the report when the data collection. In this way, not only to reduce power consumption, but also greatly reducing the cost of GPRS traffic information, saving the cost. We use two 12V battery as a power source, alternating power supply, through the use of proven, the whole system in a case of battery power, can work 3O days, two batteries simultaneously, can reach more than 60 days can meet requirements. 3.2 The indoor part of the 3.2.1 system, data receiving server data receiving server is a computer that contains the driver protocol, which can be through a special drive, the computer system software and on-site unit linked to real-time data exchange, data updating frequency can reach second grade. In order to maintain the system's overall consistency, protocol and system software, we have synthesized a whole, all using the power of control of three-dimensional configuration of Beijing software development. 3.2.2 System Software System Software is the indoor part of the core system, it came to real-time data from the field, including the police and report data from the control room computer servers show up on the screen, and the scene of the alarm to sound, light and other forms of reporting to duty,[link widoczny dla zalogowanych], and then analyze these data,[link widoczny dla zalogowanych], the form of a curve drawn from historical data. Beijing power control software uses three-dimensional software development, the following sub-Function: field data of sound, light alarm: the scene of the temperature, vibration, sound, switch doors, walls ring the alarm signal in the event that our software will lO seconds the pop-up window and circular way of playing sound tips on duty, so the first time on duty patrolling the well informed staff rushed to the scene to confirm. Police records of the curve analysis: the history of each breath well will be saved in the database alert,[link widoczny dla zalogowanych], ready to be transferred out of a curve analysis in the form of inquiry, very convenient. Historical reporting features: the original report of hours each well is to rely on manual workers to the wellhead meter reading, you can now once every 2 hours through the wellhead pressure to report and rely on the formation of daily computer automatically, thus greatly reducing the labor intensity of workers, improved report management level. 4 test results and the implementation of the first set of results in June 2005 the system installed and adjusted, and in June 15 to do a field test, field test schedule is the results: The results show that the alarm data field can be correctly response to the control room, the alarm response time is not delayed, the overall results is ideal. Field Test Report Indoor alarm alarm alarm registration number of note types experience does the number of police door switch lO10loo% of the time rate of an average of 2 seconds near a shock, an average of 2 seconds sound 10ll90 broken motor vehicles can not test an average of 2 seconds gas lll0o Concentration
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