One, the advantage of technological innovation
1) and high concentration of gas blast gas detection method for resistance to new concept
KJ101-45B type gas sensor application of our invention patent, the catalytic element in any gas concentration environment is not damaged, users don't have to worry about gas outburst causes damage sensing element. KJ101-45B type gas sensor with a pair of black and white elements, full range does not stop, no protection, no switching conductivity sensor, accurate measurement of continuous 0.00-100%CH4, 0.01%CH4 resolution in the 0.00-10%CH4 range, repeatability is good linear and excellent in the 10-100%CH4 range, has been successfully recorded the whole process of gas outstanding, has been unanimously praised by users of famous brands.
2) gas sensor, high stability, long life
Constant temperature working model of KJ101-45B type gas sensor to detect element has an extremely long service life, the life expectancy of up to three years, there are more than five years of record in justice coal group Li Goujing, not because of many elements to terminate the use of the sensitivity attenuation, but long after the chamber of powder metallurgy dust blocking cover to replace. Stabilization technology of KJ101-45B type gas sensor original, can make the sensor zero with ultra low drift performance and accuracy, there is no adjustment did not exceed the standard recorded for 100 days, far exceeding the national standard of 15 days. Instrument in the full range only with a software of zero, the infrared remote control, very convenient to use. See the "development of a full range of gas sensor details and the identification process".
3) the system anti-interference performance
The most prominent advantages of KJ101N system with there is nothing comparable to this anti-jamming performance, application of its own patented technology, put an end to the monitoring system of large numbers of abnormal interference, 2007 June, KJ101N monitoring system in the testing center of Changzhou took the lead through the electromagnetic compatibility test, record the first coal mine safety monitoring system the anti-jamming performance, the transient burst and the surge of more than the highest national standard grade 4, broke the coal mine safety instruments are not compatible with the technical bottleneck standard by electromagnetic.
KJ101N system adopts the technical scheme and the conventional products are very different, for example: SDLC synchronous communication protocol, intelligent lock technology, redundancy fault-tolerant, high speed is limiting, peak surge suppression, common mode interference suppression and so on a number of technical measures, to eliminate the root causes of the false alarm, take big number problem, is the only can do both fast response, monitoring system and no "unusually large number of interference". The KJ101N system to the user is not only the management of the relaxed feeling, give mine leader is more confident and proud.
4) fast, high reliability power technology
Monitoring substation power speed and reliability are the two indicators of contradictory, the strong electromagnetic interference environment can easily cause false alarm error in power, in order to ensure the authenticity of signal acquisition, tend to adopt the software multilayer filtering measures, according to repeated data collection, the results at the expense of fast response, is very difficult to find a compromise in the between the two, has been a headache problem the manufacturer. Frequent false break electrode harm the credibility of the monitoring system, the people have lost patience and confidence, is it right? All of the monitoring system are so? Today show in KJ101N system in front of you really the two performance indexes, do the "absolute can rely on the" 2 second power function, its excellent the performance by the many users simultaneous praise.
5) three state recognition technology switch input
There is a switch three state input requirements AQ6201 new draft standard, current conventional products have not been solved recognition switch three states, the quality process had to be temporarily canceled the request, switch failure can not distinguish and logic 0, monitoring of important equipment is flawed, such as feed back problem, use personnel can not be interpreted detection sensor is the "fault" or "off" state. The KJ101N system of substation with switch three input function, namely the logic 1; a logic 0; fault, can effectively distinguish logic 0 and fault of uncertainty, KJ101N system on this technology was already ahead of the manufacturer.
6) feed detection technology and reliable
The current monitoring system existed problem of feed state feedback, is mainly due to underground power supply center point floating caused, feed sensor is manufactured according to the electric field induction principle, power floating will cause the sensor uncertainty, causing many problems in this system are technical bottleneck, many factories use direct conversion type feeder sensor, and there is a magnetic switch horn mouth cannot lead cable embarrassment, novelty detection technology developed to overcome the "floating" technical difficulties, KGT19 induction type feed sensor for this functional design, the working performance is stable, accurate and reliable detection of state, is currently the technology of the one and only domestic, and supporting the use of system models.
7) wet steam pipeline of high concentration methane detection
Pipe drainage monitoring with high concentration methane sensor, mostly work in the high humidity in the pipeline, the detecting element is highly vulnerable to water erosion and damage, the ordinary heat element in high humidity environment bridge zero instability, insert a zero and the precision cannot be calibrated pipeline heating power, DC electric field formed produces electrical erosion phenomenon, will corrode the broken white gold is serious, is always a difficult problem in monitoring field cannot overcome.
KJ101N-45HB pipeline of high concentration sensor using patented technology, the sensor can withstand 100% high humidity gas, no water filter, regular drying and zero adjustment, troublesome operation, good stability, long service life detecting element, convenient to zero and standard gas calibration, the champion in the drainage monitoring field, the sensor can be used with monitoring system for all models.
8) the two-wire system new technology
KJ101N type coal mine monitoring system application independent innovation patent technology - power supply and signal superposition technique, signal and power supply with the core wire, the realization of the connection of two-wire switch sensor, remote control box, remote power splitter and other equipment, in a pair of cable at the same time in the equipment of the power supply and signal transmission, simplified field wiring, especially the control mode and the traditional remote power are quite different, in a pair of control line hanging a plurality of relay box, remote power controller without external power supply, multi-channel remote control is convenient and simple. The core value of coal in 17 years development course of electronic is innovating constantly, all its products are always so out of the ordinary, beyond your imagination.
Two, the product structure advantage
1) integrated substation
Most of domestic products are split type substation, which is subject to foreign products affect the formation of the genre, the power and the substation and transmitter, matching, broken appliances and other equipment are designed separately, the downhole equipment is complicated and not easy to management and maintenance, not suitable for China's national conditions, KJ101N - F1 and KJ101N - F2 substation adopts integrated design integrated substation, substation, power instrument together, intrinsically safe power supply box, a backup battery, wind power to block the gas meter five product function, small volume light weight all blend into one harmonious whole.
2) the application of new material
The KJ101N system component housing almost all use stainless steel and glass steel materials processing and manufacturing, corrosion, impact resistance performance good, die casting product has the advantages of beautiful shape consistency and good, is welded steel shell unmatched. For example: KJ101N-F1 monitor shell made of stainless steel (1 chromium 18 nickel 9 titanium) precision casting, modeling exquisite durable, instrument equipped with moulded glass steel assembly, the circuit board, power supply side board, transformer, terminal and other components are firmly fastened in the assembly, not only has the advantages of compact structure, the overall stability good, convenient disassembly and insulation, safety, the whole weight of only 23 kg, is the one and only boutique.
3) structure innovation
KJ101N - F2 type 16 port station shell is made of glass steel die, small volume and light weight, shell insulation, beautiful appearance, net weight 13 kg, plus the reserve power supply is only 17 kilograms, is the integration of substation, the one and only the smallest volume weight of industry products. At present, most of the conventional product shell thin metal stamping, or steel plate welded, circuit board and a transformer is directly fixed on the metal shell, the circuit with the flying lines connected, poor reliability and inconvenient repair;
4) high reliability, maintenance free, easy maintenance structure
Each component structure design break the normal procedure, KJ101N type coal mine monitoring system such as: high reliability design of many KJ101N monitoring system components are used in waterproof, shockproof, dustproof, anticorrosion, can withstand harsh downhole high humidity, high dust, corrosive water environment, such as: circuit board series analog sensor, monitoring substation equipment by fully inserting structure, convenient disassembly repair. Another example: using integrated design remote splitter, switch extender, high voltage breaker, line arrester equipment such as the control circuit, the whole machine is centralized on a circuit board, embedded in a solid framework, the machine can not see the connection, make repair replacement becomes easy, non professional repair personnel can also emergency treatment.
5) challenge the traditional structure, open up new ways of making the flameproof shell of non metallic materials
Mechanical and electrical equipment in coal mine by flameproof enclosure control, volume weight can not be small, the manufacturers continue to improve the design has reached the limit volume performance, continue to walk along the breakthrough traditional metal shell of the old road, the application of non metal material processing flameproof enclosure, must pass through the material stability 20000 hours of simulation test, it is like a long time, high risk and high cost of gambling, many manufacturers are daunting be beyond the means of coal, electronic successfully initiated polymer materials manufacturing flameproof enclosure precedent, opened up a new path for the coal mine electrical equipment miniaturization. See the special report: "breakthrough" technology in coal mine safety monitoring product structure 101N system has a common characteristic, housing almost all mold production, ensure the consistency and quality of excellent performance, internal structure almost entirely maintenance free and easy maintenance structure.
Functional advantages, system three
1) start the remote substation:
"The total clearing system specific station" and "sensor" function, the use of cleaning personnel not well, hair cleaning the ground monitoring host machine can start command, "deadlock" in the wake of the substation and the sensor, the conventional system crashes occur substation must human Shii Shige new start to restore operation, this technology is the one and only function at present domestic system.
2) broadcast power-off function:
The system has fast broadcast emergency command functions, only one command in case of emergency, quick control electromechanical equipment was all mine in power can, from broadcast command is issued to the power-off completed the execution time of less than 0.5 seconds, especially suitable for high outburst gas coal mine use. The conventional system does not have the fast broadcast power-off function.
3) hot standby function
The system is simple and reliable original hot preparation function, interface circuit by special monitoring recognition and switching, action is accurate and reliable, without the need for additional equipment. Hot other system which using server and disk array mode of preparation, the server additional equipment, the reliability of its relative decline, hot this system outperforms the conventional preparation system.
4) monitoring is provided with an infrared remote control power switch
The system of underground equipment widely used infrared remote control, remote control technology, substation power "on / off" gas wind electricity locking state "unlock", parameter setting, all by the remote operation, the instrument can be machine power control in the mine field off the machine, but also with a magnetron power switch, in machine external magnetic steel to start or close the intrinsically safe power supply, repair also do not have to stop the 660 volt power supply, convenient as the use of remote control color TV. Conventional products due to structure design, few have the AC power switch, the system with back-up power supply is more trouble, must be in the underground scene open cover "electricity".
5) automatic signal wire short cut function
According to statistics, fault monitoring system of nearly 70% is caused by transmission line, once the time-division bus system short-circuit fault, the system will be paralyzed, the design of KJ101N system with intelligent three (remote shunt type KFF1), when the transmission line is short circuited, can automatically cutting short branch, security system don't interrupt operation and alarm record fault points, system of transmission line after the occurrence of a fault system 3 seconds will automatically detect and alarm, automatic or manual fault feeder, pulse code control, static state self, no power consumption.
6) off the execution state feedback function
The design of the system power state feedback function, remote breaker is provided in the fed state detection circuit, using non contact detection circuit of induction type, measuring excitation current executive circuit judge fed state controlled equipment, in the implementation of remote power at the same time, feedback controlled power supply equipment. Equipment is simple and practical, no additional feed sensor and the cable, which can effectively solve the problem of power failure monitoring. The new AQ6201 regulations system must have fed state detection function, the conventional products must be installed "feed sensor" to achieve this function.
There are many little-known function of KJ101N system, because of the limited space can not one one introduced, details please refer to the relevant materials.
Four, excellent anti lightning performance
1) KJ101N type coal mine monitoring system has accumulated a large number of lightning protection knowledge and experience in the past twenty years of practice, the development of lightning protection device with excellent performance and lightning protection technology, once many times in authoritative journals published special articles, puts forward a new idea of 12 lightning surge, and put it into product design.
2) took the lead in the domestic launch has an underlying KJ101-L type line arrester, lightning arrester of power and other products, its excellent protection performance of the leading domestic.
3) product design based on component, all with effective surge suppression circuit, the lightning performance of distribution coverage in the product, such as: monitoring sub station entrance, communication interface, power supply output intrinsically safe power supply outlet, sensor terminal interiors and so on, so that the monitor set anti surge performance by strengthening has hitherto unknown.
4) in 2006, our company developed the mine optical fiber interface and the small ring Ethernet switch, communication trunk into the optical fiber transmission, downhole equipment compatible with existing users, without too much cost can easily upgrade, the lightning will become a history.
Five, extensive compatibility mode
1) sensors with substation flexible connection mode
KJ101N type coal mine monitoring system inherits the sensor with flexible connection mode, convenient and suitable to monitor the size of working surface, such as a variety of analog and switch quantity Collocation: in addition to the 4 mold standard 4 open, 8 open 8 die station can virtual Dual 4 modulo 4 open station using.
2) compatible with the original product components
Each analog port still can be extended to eight switch, compatible switch extender KJU3; compatible with the original remote power box; compatible with old and new sensors, substation can frequency, access to various types of discontinuous pulse, serial code etc..
3) sensor monitoring almost can be matched with all domestic and foreign manufacturers
Upper and lower limits, input frequency full display, display dimension, range piecewise can be set freely, as long as consistent with national standards of products can easily access the system.
4) multiple sensor outputs.
This system has a variety of sensor output system, such as: the frequency of 0-300HZ standard; 0-5000HZ; 200-1000HZ; 200-1000-1960HZ, analog 1-5mA; 4-20mA; and serial code, use the remote control can be conveniently conversion system.
The characteristics of KJ101N system is the development and innovation of inheriting the advantages and take into account the product replacement continuity.
Gao Kekao, six, high standard, high redundancy parameter design
1) downhole equipment, wide input voltage range
Coal mine power supply fluctuation range is quite large, different from the laboratory instrument, the voltage in the large equipment startup 660 power can drop to below 500 volts, no-load and crossed above 800 Volts, many KJ101 systems technology index does not follow the traditional product mode, the downhole equipment can work in a wide voltage range is very wide properties, such as 660 volts equipment can work normally in the range of 490-830.
2) power ability
System power control function, the main control point of high voltage, large capacity, power rating: 660V/40A, can be directly controlled 1140V-36V circuit, can drag pressure trip coil.
3) large capacity backup power
System design index >6 hours (with a record of 14 hours)
Seven, the full range of high performance of mine sensor
KJ101N system analog mine sensors, equipped with complete varieties, including methane, carbon monoxide, high and low wind speed, temperature, flow, pressure, water level, pipe, air door, start stop, feed, hairdryer, goods are available in all varieties.
The whole series of mining sensor, performance is excellent workmanship, is the industry elite, has an excellent reputation in the user, many users know coal products are mostly from the use of sensor. Stability of the monitoring system is the hardware set multiple body, selection of people are likely to be misled by the colorful software interface, the user experience to tell people, select system must look at the sensor quality, look at the category is complete, it is the key part of monitoring system performance, if the sensor is not stable, good software system will lose value.
Eight, drainage monitoring technology
KJ101N monitoring system based on gas advanced drainage monitoring technology is known, the four sensor drainage: pipeline, pipeline pressure, temperature of methane pipeline, pipe flow are the domestic first-class product, monitoring 08 years launched a display cabinets, display complete parameters directly, the cumulative amount of scalar mixing, with temperature and pressure compensation, system monitoring software function of goods are available in all varieties., with mine gas drainage must not ignore the performance.
Nine, full of innovative software
1) to innovation as the monitoring software key
KJ101N type coal mine monitoring system software and its hardware style full of innovation consciousness, the 08 version of the system software can run on the full range of Windows platform, the use of C++ language, running speed, display interface with a variety of user habits, convenient and fast use.
2) graphic display vector graph processing technology
Graphics with stepless zoom function, especially the curve display mode is become an independent school, convenient operation, database using a new generation of MYSQL, has laid a good foundation for the user to develop two times and networking, software structure of the configuration mode, according to the needs of the user can be easily modified and extended. The design of the system has local network terminal and Internet remote terminals, terminals can be extended to any corner of the earth, the user only need a small investment can be quickly network. This software set the advantages of various types of monitoring system in one, complete functions, reliable and practical, accord with AQ6201 standard.
3) system is the product of the face, interface, easy packaging landscaping, to understand the true performance needs a long time for it, the software have great plasticity, as long as the enterprise has the abundant strength, the future of software performance can also slowly carving, remember to avoid the spell system together assembly, monitoring system used to buy the software and hardware composition of the easy buck passing events is advancing with the times, software products, if the manufacturer does not have the ability to manage software capabilities, will bring many troubles for the user.
Ten, small system error
The KJ101N system from the sensor to the surface processing link advanced, analog acquisition mode is different from the traditional, A/D transform and V/F transform are usually use specialized devices are respectively independently, itself will cause local display is not consistent with the remote signal, use and debugging for synchronization and tracking problems (zero frequency and accuracy full frequency), bridge staff use debugging sensor, only the sensor can change the local display, frequency signal to remote cannot sense, will inevitably lead to very discrete, even if not pipeline factors distortion, correction of zero, zero and display frequency show a full degree, frequency full is ten difficulties things. The sensor signal system by single chip microcomputer 101 all unified treatment, no synchronization tracking problem, the whole system error it is not beyond a display word deviation (sensor last digit), as long as the sensor calibration and reliable, users do not have to worry about strict nuclear security personnel check, is currently the leader in monitoring system.
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